Leadership
Managing Partner
Shinji Koyama
| Title | Co-Managing Partner / New Jersey Office Tax Partner |
| Specialties | U.S. Corporate income tax, international taxation related to foreign companies expanding into the United States, specializing in Japanese companies, international taxation related to M&A, tax Internal Revenue Service and various state tax audit assistance |
| Qualifications | United States Certified Public Accountant (State of New York and State of California), A member of the American Institute of Certified Public Accountants and the New Jersey State Certified Public Accountants Society |
| Career Background | Graduated from colleges in Los Angeles with accounting undergraduate and tax graduate degrees and worked for Ernst & Young for 20 years. With my back ground, Shinji had an opportunity to work in Tokyo where he gained more knowledge in how to provide services providing corporate tax services in Los Angeles, Tokyo, and New York. In New York office, Shinji was the leader of the Japanese Corporate Services Tax Department. He joined EOS and is currently a co chairman of the firm. |
| Hobby | Shinji enjoys reading various genres and playing sports with my children. |
I was born in Japan to Japanese parents and grow up in California. With my background I was able to work for Ernst & Young’s Tokyo office to gain more knowledge and culture differences in Japan. I aim to provide appropriate and timely services that meet the business needs of our clients. I try to support my team members to improve their skills on a daily basis and work collaboratively to provide client services.
Masanobu Tsuchiya
| Title | Co-Managing Audit Partner In charge of Detroit Office, Chicago Office, and Houston Office |
| Specialties | Financial statement audits and internal controls audit based on US auditing standards (mainly for manufacturing and service industries), internal controls construction support, accounting policy creation support, and M&A advisory services |
| Qualifications | United States Certified Public Accountant (Illinois, Michigan, California, Hawaii, Texas), A member of the American Institute of Certified Public Accountants and Michigan Association of Certified Public Accountants |
| Career Background | Prior to joining EOS, Masanobu worked at Ernst & Young’s Los Angeles office where he serviced many different industries, including hospitality industries, real estate industries, and service industries. He also worked at Ernst & Young ShinNihon LLC (currently Ernst & Young ShinNihon LLC) as an audit manager servicing auto manufacturing company. He joined EOS in 2007 as an audit Partner to open the Detroit office, in 2010, he proceeded to open the Chicago Office. He became Co Managing Partner in 2019. He is also in charge of the Houston office from 2023 |
| Hobby | Practicing Kyudo (currently 4th dan) |
After graduating from University in Japan, I worked as an English teacher at a public high school in Gifu Prefecture for several years. However, I longed to study and live in the United States, so I moved here in my mid-twenties. After completing my master’s degree in accounting, I joined Ernst & Young’s Los Angeles office and entered the industry. I have been serving clients for over a quarter of a century. With “providing timely and accurate information,” as my motto, I strive every day to provide better service by making use of the attitude of “learning together,” which I acquired during my time as a teacher, and the “ability to concentrate,” which I cultivated through archery.
Partner
Kazuhide Kaga (Kaz)
| Title | New Jersey Office Tax Partner |
| Specialties | Corporate tax consulting, ASC740 income tax provisions, tax due diligence, individual tax consulting (including high net worth individuals, business owners, and athletes) |
| Qualifications | Japanese Certified Public Accountant, affiliated with the Japanese Institute of Certified Public Accountants, Enrolled Agent |
| Career Background | Graduated from Waseda University and worked at an accounting firm in Tokyo. Joined Ernst & Yong in 1993 and was the managing director of tax in BDO New York Office. Joined EOS in 2017. |
| Hobby | Fishing (saltwater fishing, mountain stream fishing, and other fishing. Kazuhide enjoys many activities in the sea and mountain streams), listening to music (He likes classical music such as piano and hard rock, and performing arts such as ballet and opera), reading (his favorite author is Kaoru Takamura) |
Working together with our highly experienced and friendly staff, I provide genuine services, I would like to continue utilizing my wide range of experience in tax services, from individual tax to corporate tax in the United States, to provide quality advice that is useful for my clients’ businesses. I am also the representative secretary and vice president of the Waseda University NY Tomonokai (alumni association), so please feel free to contact me if you would like to join!
Jungha Kim
| Title | New Jersey Office Audit Partner |
| Specialties | Assurance services such as financial statement audits, consulting on financial reporting and internal controls |
| Qualifications | United States Certified Public Accountant (New York), affiliated with the American Institute of Certified Public Accountants |
| Career Background | Prior to joining EOS, Jun worked at Deloitte Touche New York Office. She has been working in the audit and accounting industry since 2004, providing services to companies in both audit and advisory capacities. She has served a diverse range of clients in distribution, manufacturing, retail, services, and real estate industries, encompassing start-ups to large multinational organizations. She also serves as a firm’s Quality Management Partner. |
| Hobby | Traveling with my husband and daughter and discovering new places |
I started my professional career in the financial industry in Seoul, South Korea, and gained experiences in the fields of corporate finance and equity research at Nomura Securities and ABN Amro Asia for five years. Through my experience I realize I love to explore new ideas, gaining insights from different perspectives, and interacting with my clients through honest and transparent communication. I believe that auditors should bring trust to financial reporting and trust brings value for long-term success.
Alex Kitajima
| Title | Los Angeles Office, San Jose Office Audit Partner |
| Specialties | Financial statement audits and internal control support for various industries, internal control support and Sarbanes-Oxley compliance services, U.S. GAAP/GAAS |
| Qualification | United States Certified Public Accountant (California), affiliated with American Institute of Certified Public Accountants and California Board of Accountancy |
| Career Background | Alex graduated from UC San Diego with a bachelor’s in economics and from the University of Notre Dame with a master’s in accountancy. Prior to joining EOS, Alex was with Ernst and Young in the Los Angeles office audit practice before experiencing roles in internal audit, finance, and general accounting. |
| Hobby | Any Sports, Traveling |
Living in a VUCA (Volatility, Uncertainty, Complexity, Ambiguity) world, flexibility and imagination are essential to success. My goal is to provide high quality services with those key concepts at the forefront of everything I do to contribute to bridging the gap between Japan and the United States by providing high-quality services. It is my great joy to feel the trust my clients have in our service.
Yasuka Kotani
| Title | New Jersey Office Audit Partner |
| Specialties | Financial statement audits and internal controls audit based on US auditing standards, internal controls construction support, accounting policy creation support, and M&A advisory services |
| Qualifications | United States Certified Public Accountant (New Jersey, Washington, Texas), affiliated with the American Institute of Certified Public Accountants and the New Jersey State Board of Accountancy |
| Career Background | Yasuka is an Audit Partner at EOS with more than 20 years of audit, accounting, and tax experience at US public accounting firms. At EOS, he has provided accounting, auditing, and advisory services to diverse industries, including chemical, real estate, logistics, manufacturing, and distribution sectors, spanning from start-ups to mature entities. |
| Hobby | Traveling, golfing, hiking, and watching sports |
With my background in working in Japanese company in Japan, I understand the differences in how business is conducted in both Japan and US, I would like to continue dedicating myself to optimizing the client’s financial reporting and ensuring timely compliance with the reporting deadlines by providing accurate, comprehensive, and expeditious services.
Tomoko Koyama
| Title | New Jersey Office Tax Partner |
| Specialties | Personal income taxes for expatriates and other individuals, payroll taxes |
| Qualifications | United States Certified Public Accountant (Delaware), affiliated with the American Institute of Certified Public Accountants |
| Career Background | Tomoko graduated from Kyoto University. Prior to joining EOS, she provided payroll tax/personal income tax consulting, gross-up calculations, personal return preparation services to Japanese companies and tax equalization calculation for many years at a KPMG and Ernst & Young accounting firm. In 2020 Tomoko joint EOS Accountants LLP. She was promoted to Tax Partner in 2023. She has assumed in charge of Individual Income tax and payroll Department for New Jersey office and oversees the entire EOS Firm. |
| Hobby | Reading, Movie watching, Travel |
I strive to provide courteous services that are tailored to the needs of my clients, drawing on my experience working in human resources at companies in both Japan and the United States. As my responsibility is to care for all the individual income tax returns, I try to care of tax matters of each individual clients. With forever changing tax laws, I am continually updating my knowledge so be on top of tax laws.
Fuminori (Matt) Matsubara
| Title | Los Angeles Office Audit Partner |
| Specialties | Financial statements audits, U.S. GAAP, business combination accounting |
| Qualification | United States Certified Public Accountant (California), affiliated with American Institute of Certified Public Accountants |
| Career Background | Graduated from Gakushuin University in 1996. Matt worked for a government-affiliated financial institution, where he oversaw fund procurement. After graduating from Golden Gate University with a master’s degree in accounting, he joined the Los Angeles office of Deloitte & Touché LLP, where he worked in audit practice, mainly in the automotive and electronics industries. In 2009, he moved to EOS Accountants LLP, where he provided audit services to Japanese companies. In 2017, he became an audit partner, and in 2019, he became the leader of the West Coast Audit Department, leading Los Angeles and San Jose offices' audit departments. |
| Hobby | Reading, movie watching and music listening |
It has been 20 years since I started working as an auditor for Japanese companies in Los Angeles, and since moving to EOS, I have been blessed with good encounters with my supervisors, colleagues, and clients. In recent years, I have been communicating more and more with Japanese audit firms, and I have learned a lot from them. I hope that I can continue to contribute to the growth together of EOS and our clients.
Michica Nomi
| Title | Honolulu Office Tax Partner, serving from Tokyo Representative Office |
| Specialties | Corporate and individual income tax support investing in the U.S., Streamlined Filing Compliance Procedures, ITIN applications, US gift and Estate, Trust tax, Tax Consulting. |
| Qualifications | United States Certified Public Accountant (Hawaii), affiliated with American Institute of Certified Public Accountants and Hawaii Board of Accountancy, US Internal Revenue Service Certified Acceptance Agent (for ITIN applications). |
| Career Background | After graduating from University in New York with a degree in Mathematics, Michica joined Ernst & Young’s Honolulu office as a bookkeeper. She then proceeded to become an audit staff and then transferred to the tax department. She left Ernst & Young as a tax senior manager in 2003. She joined EOS in 2004 and open the Honolulu Office. Her experience is in real estate industry where Japanese corporation or individual invest in real estate in the U.S. She also has experience in U.S. Estate and Trust tax matters. |
I was born in the United States and grew up in both Japan and the United States as the child of expatriates. My experience is mostly in the initial set up of the companies or investors coming to the U.S. Also, as my parents passing, I realize how complicated the Japan inheritance law is to accommodate the U. S. tax when Japanese investors pass away. With over 30 years of experience in the US taxation, I would like to put myself in the clients’ shoes and provide comfort to Japanese companies and investors in the United States.
Hirohide Takatsuji
| Title | San Jose Office Tax Partner |
| Specialties | Inbound international income tax, corporate income tax, ASC740 Income Tax Provisions, Individual income tax for expatriates, payroll tax, US Japan Tax Treaty. |
| Qualifications | United States Certified Public Accountant (California), affiliated with American Institute of Certified Public Accountants and California Board of Accountancy |
| Career Background | Graduated from Waseda University in Japan, Hirohide worked for a Japanese company in Fukukoka. He, then, moved to the U.S. to learn English to California where he attended University and obtained his master’s degree in accounting. Prior to joining EOS, Hirohide was a Senior Tax Manager at Ernst & Young’s San Francisco office. Hirohide has over 30 years of experience in servicing many Japanese companies in various tax areas. He is experienced in payroll, bookkeeping, U.S. and Japan tax treaty. He joined EOS in 1999 and open San Jose office. |
| Hobby | Golfing |
After graduating from a university in Japan, I worked for two years and came to San Francisco to study English. I originally planned to return to Japan after one year, but I ended up receiving my master’s in accounting at graduate school in the United States which turned out to be my passion. I joined EOS in 1999, and just like that, I had already been in the United States for over 35 years. Taxation can be a very difficult subject, but I find it very interesting to look into solving the client’s problems for them, so I continue to study it every day and strive to grow and learn different tax strategies, together with my clients.
Mark Usui
| Title | Los Angeles Office Tax Partner, West Region Partner |
| Specialties | Inbound international income tax, corporate income tax, ASC740 Income Tax Provisions, Due Diligence Study. |
| Qualifications | United States Certified Public Accountant (California), affiliated with American Institute of Certified Public Accountants and California Board of Accountancy |
| Career Background | Mark was formerly a tax partner of Ernst & Young LLP and director of E&Y’s Southern California Japanese Business Tax Practice. Mark has over 30 years of experience in serving both US publicly traded companies and many significant Japanese clients. His areas of expertise include business and individual tax planning, complex compliance issues, and representation before governmental agencies. He joined EOS in 2003 and open the Los Angeles Office and became Partner of EOS. Currently, he oversees the West Region area of EOS. |
| Hobby | Golfing |
After graduating from University of Southern California, where I majored in accounting and proceeded to obtain degree in Master of Accountancy and Taxation, my heart has always been interested in accounting and taxation. I really enjoy connecting client and their needs to those who can help them. With my 30 years of experience and connection, I try to help clients who are interested in understanding complex US taxation and resolving their issues.
Principal
Aleksandra (Alex) Atanasovski
| Title | New Jersey Office Audit Principal |
| Specialties | Financial statement audits and internal control audits |
| Qualification | United States Certified Public Accountant (New Jersey) |
| Career Background | I joined EOS New Jersey office in 2011 after obtaining my undergraduate degree from Anisfield School of Business at Ramapo College of New Jersey. |
| Hobby | Reading, being a taxi driver for my kids, and what their sport practices and games. |
I was born and raised in Skopje, Macedonia and I came to the US as a student. My major was mathematics, but once I moved to the US, I decided to switch majors and graduated from Ramapo College with a major in accounting and a minor in mathematics. I was always more inclined to work with people than by myself, so I truly enjoy all the interactions with the clients. It makes me very happy when I can help them and make their work and life easier.
Dawn Narita Fuh
| Title | Los Angeles Office Audit Principal |
| Specialties | Financial statement audits and internal controls audit based on US auditing standards, internal controls construction support, accounting policy creation support, and M&A advisory services, employee benefit plan audits |
| Qualification | United States Certified Public Accountant (New York) |
| Hobby | Traveling, Eating out |
My experience at EOS has given me the opportunity to be engaged in the audits of U.S. clients with multiple subsidiaries and provide assistance to the Japanese parent external auditors with Japanese Sarbanes-Oxley (J-SOX) compliance. My background as Japanese decent, I really enjoy working with Japanese clients.
Miki Heinonen
| Title | Los Angeles Office Audit Principal |
| Specialties | Financial statement audit, review and accounting consultation services related to business combinations and consolidations |
| Qualification | United States Certified Public Accountant (California), affiliated with American Institute of Certified Public Accountants, and Board of Accountancy for California and Illinois |
| Career Background | Prior to joining EOS in 2007, I worked in the financial market audit group at Arthur Andersen LLP in New York and in the controller’s group at Goldman Sachs in New York and Tokyo. |
| Hobby | Tennis and Pickle ball |
I aim to be a trusted partner for our clients across a wide range of industries, including real estate investment and service sectors, through our attestation services. I also assist with accounting services such as business combinations and consolidated financial statements. Miki oversees the accounting and bookkeeping department of Los Angeles office.
Sachiyo Hotta
| Title | New Jersey Office Transfer Pricing Principal |
| Specialties | Transfer Pricing Study, Assistance in Advance Pricing Agreement. |
| Qualifications | United States Certified Public Accountant (New York, California) |
| Career Background | Prior to joining EOS and entering the accounting field, Sachiyo worked in the asset management business at investment banks in New York. After starting her career in public accounting, she was involved in simultaneous transfer pricing documentation, advance pricing agreement (APA) application support, and transfer pricing consulting for small to large companies. Sachiyo oversees the Transfer Price Department for the entire firm. |
| Hobby | Reading and traveling |
I would like to continue aspiring to make sure the clients are serviced timely and with detailed attention. I enjoy clients’ feedback on my services.
Wataru Ito
| Title | Honolulu Office Accounting Principal |
| Specialties | Outsource Accounting, Financial Statement audits, US and international accounting standards, US accounting practice consulting |
| Qualifications | United States Certified Public Accountant (New York and Hawaii), affiliated with American Institute of Certified Public Accountants and Hawaii Board of Accountancy |
| Career Background | Wataru joined EOS New Jersey office in 2003 as a bookkeeper. He then transferred to start an Audit and Accounting department for Honolulu Office in 2014. He has been promoted to a principal in 2023. |
| Hobby | Surfing and going fine dining with his wife. Loved to hang out with his dogs. |
I would like to use the experience and knowledge gained here at EOS to provide high-quality, flexible services on timely basis.
Yoshimi Kambe
| Title | New Jersey Office Audit Principal |
| Specialties | Financial statement audits and internal controls audit based on US auditing standards, internal controls construction support, accounting policy creation support, and M&A advisory services. |
| Qualifications | United States Certified Public Accountant (New York, Illinois, Texas), affiliated with American Institute of Certified Public Accountants, and New York State and Texas Board of Accountancy |
| Career Background | Graduated from Sophia University and studied accounting at a university in New York. Prior to joining EOS, Yoshimi worked as a senior audit manager at Deloitte & Touche LLP’s New York office. Yoshimi joined EOS in 2023 as Audit senior manager and was promoted to Principal in 2023. |
| Hobby | Tennis, fishing, calligraphy, visiting antique shops |
Leveraging my experience in auditing, I strive to provide quality services to our clients. Within my department, I oversee audit duties.
Rika Kato
| Title | New Jersey Office Accounting Services Principal |
| Specialties | Accounting outsourcing, consulting on US accounting practices, providing guidance on accounting software |
| Qualifications | United States Certified Public Accountant (New York), affiliated with the American Institute of Certified Public Accountants |
| Career Background | Rika graduated from Osaka University of Foreign Studies’ Department of French and Faculty of Foreign Studies. Worked for an U.S. semiconductor manufacturer in Japan, then earned her MBA from University of Texas at Austin. Worked in auditing for five years at PwC’s New York Office, then worked as an accountant for Japanese and U.S. investment and trading companies. Joined EOS at the end of 2013. |
| Hobby | Traveling with family. Prefer to travel actively than spending time relaxing |
The accounting services we provide vary depending on the needs of our clients, but our team will work hard to ensure that you feel that EOS is a reliable partner in any situation.
Akiko Kunugi
| Title | San Jose Office Audit Principal |
| Specialties | Financial statement audits and internal controls audit based on US auditing standards (mainly for manufacturing and service industries), internal controls construction support, accounting policy creation support, and M&A advisory services |
| Qualifications | United States Certified Public Accountant (California), affiliated with American Institute of Certified Public Accountants and California Board of Accountancy |
| Career Background | Formerly worked at a local accounting firm in Sacramento then Akiko joined the financial department at a major accounting firm in Tokyo. Prior to joining EOS, she worked at a firm in San Jose and was primarily in charge of NPO auditing. |
| Hobby | Traveling to Hawaii and Japan |
After graduating from college in New Hampshire and obtaining my CPA license, I have been involved in audit work at various accounting firms. I would like to use my background and continue to provide good services for our valued clients at EOS, and would like to be the trusted advisor that I can be.
Yoshinori Motoki
| Title | Chicago Office Tax Principal |
| Specialties | Japanese companies in industries related to automobile manufacturing, U.S. corporate income tax for Japanese companies in industries related to automobile manufacturing, Income Tax Provisions, tax due diligence, individual income tax for US expatriates, transfer pricing, various other international tax consulting services, and tax audits defense |
| Qualifications | United States Certified Public Accountant (Illinois, Washington), affiliated with the American Institute of Certified Public Accountants and the Illinois Board of Accountancy |
| Career Background | Yoshinori graduated from Waseda University Graduate School and from the University of Wisconsin Law School. After working at a Japanese audit firm, he moved to the United States to study abroad. Prior to joining EOS, he worked at Ernst and Young’s New York office. |
| Hobby | Visiting museums and galleries |
I have lived in the United States for more than 25 years. During this time, I oversaw various tax matters for Japanese companies in the United States and will continue to provide services in this field. I strive to help my clients with all their tax questions as my experience allows.
Kathleen Nitta
| Title | Los Angeles Office Tax Principal |
| Specialties | Corporate tax consulting and compliance, ASC740 Income Tax Provisions |
| Qualifications | United States Certified Public Accountant (California), affiliated with the American Institute of Certified Public Accountants and California Board of Accountancy |
| Career Background | Prior to joining EOS, Kathy was an executive director of tax at Ernst & Young’s Los Angeles office. |
| Hobby | Fishing and reading |
I have been involved in tax consulting for American and Japanese companies for over 25 years at Ernst & Young and over 10 years at EOS. I am particularly familiar with ASC740 tax provisions and corporate income tax compliance. I have been involved in tax matters in various industries, including automobile manufacturers, distribution, and entertainment companies.
Stanley Sawai
| Title | Honolulu Office Audit Principal |
| Specialties | Financial statement audits and attestation services |
| Qualifications | United States Certified Public Accountant (Hawaii), affiliated with American Institute of Certified Public Accountants and Hawaii Board of Accountancy |
| Career Background | Graduate of the University of Hawaii at Manoa. Prior to joining EOS Accountants LLP, Stan worked for over 40 years at KPMG LLP in the Hawaii and Tokyo office providing audit, internal control audit/advisory, and consulting services for the not-for-profit, hospitality, real estate, financial services, and retail/wholesale service industries. |
| Hobby | Eating out, golfing |
With over 40 years of experience in auditing and accounting in both Japan and the US, I would like to continue to assist the clients and internal quality control for the firm.
Ken Ukai
| Title | New Jersey Office Audit Principal |
| Specialties | Financial statement audits (U.S. GAAP and IFRS), consulting services related to accounting fields |
| Qualifications | United States Certified Public Accountant (New Jersey, New York, Hawaii), affiliated with the American Institute of Certified Public Accountants |
| Career Background | Graduated from Waseda University’s School of Commerce Ken then moved to the U.S. and earned his MBA at Willamette University in Oregon. Worked at Morgan Stanley Tokyo Branch and Deutsche Bank Tokyo Branch where he was engaged in risk management and internal audit work. Worked at KPMG in Tokyo and New York Offices and was responsible for financial statements audits. Also, he worked at PwC in the Tokyo office and engaged in consulting work for financial institutions. He then joined EOS New Jersey Office in 2014. Ken was promoted to Principal in 2023. |
| Hobby | Soccer |
Leveraging on my previous work experience in a consulting firm, I make a habit of working together with our clients to tackle common problems.
Adele Hirai Wong
| Title | Honolulu Office Tax Principal |
| Specialties | Individual and corporate income tax returns, consulting, and compliance, as well as payroll tax related work |
| Qualifications | United States Certified Public Accountant (Hawaii), affiliated with American Institute of Certified Public Accountants and Hawaii Board of Accountancy |
| Career Background | Adele majored in accounting at the University of Hawaii at Manoa. Upon graduation, she started working for Ernst & Young’s Honolulu office, where she was responsible for many Japanese business clients in the tax department. In 2004, Adele helped open EOS’s Honolulu office. Adele was promoted to Principal in 2022. |
| Hobby | Traveling, golfing, and playing with my dogs |
Ever since I became a CPA, I have been providing high quality services to clients on the mainland through in Japan in different time zone. I have enjoyed building good relationships with clients and co-workers at EOS over the years and I continue to learn and grow every day!
Yu Yang
| Title | Detroit Office Audit Principal |
| Specialties | Financial statement audits and internal controls audit based on US auditing standards (mainly for manufacturing and service industries), internal controls construction support, accounting policy creation support, and M&A advisory services and ASC740 Income Tax Provisions |
| Qualification | United States Certified Public Accountant (State of Michigan), A member of American Institute of Certified Public Accountants and a member of Michigan Association of CPAs |
| Career Background | Yu obtained her master’s degree in engineering from the University of Science and Technology, Beijing, China. Shortly after graduation, she came to the United States and recognized her real interest was in accounting and auditing. She then obtained her master’s degree in accounting. Within five months after graduation, she passed all the required CPA exams and ever since she joined EOS in 2014. |
| Hobby | Yu enjoys growing succulents and fishing. She also works out on the rowing machine and treadmill every morning to keep her in shape. She is proud that she is good at making traditional Chinese rice balls recipe from her grandmother. |
Although I mostly perform audits, reviews and JSOX for multi-national consumer products manufacturers and distributors, my forte is income tax provision. I appreciate the importance of camaraderie and team building. I’m only as good as my team. Furthermore, this is also true for clients -- everyone must build a sense of camaraderie and trust to be successful. I enjoy working with Team EOS.
Mika Yoshimura
| Title | Honolulu Office Audit Principal |
| Specialties | Financial statement audits and internal control audits (for captive insurance, manufacturing, hospitality, real estate, and other industries) based on US auditing standards, internal control audit JSOX support, M&A advice, accounting due diligence |
| Qualifications | United States Certified Public Accountant (California), affiliated with the American Institute of Certified Public Accountants and California Board of Accountancy |
| Career Background | After graduating from a university in Japan, Mika worked at a company affiliated with an automobile manufacturer. She majored in Accounting (MSA) at San Jose State Graduate School then worked in accounting/ auditing at KPMG’s Silicon Valley and LA Offices for about ten years, became GE Capital’s Asia Pacific Controller, and was responsible for SEC reporting, FED response, M&A accounting, etc. Prior to joining EOS in 2022, she worked at a mid-sized accounting firm in Honolulu. |
| Hobby | Travelling, dogs, wine, real estate, watching theater performances, and watching sports |
Based on approximately 10 years of accounting auditing experience at a Big 4 company and accounting experience at a US listed company, I strive every day to accurately understand the business needs of client companies and provide them with timely services. Since 2016, I have been engaged in auditing and accounting work for captive insurance companies in Honolulu and other industries such as real estate, hospitality, and manufacturing industries.
Senior Manager
Yukie Hamabuchi
| Title | New Jersey Office Tax Senior Manager |
| Specialties | Corporate income tax compliance including consolidated/combined tax filing for federal and states, IRS and state income tax examination defense, inbound international tax consulting, and ASC740 Income Tax Provisions |
| Qualification | USCPA licensed in Ohio and New York; member of AICPA and New York Society of CPAs |
| Career Background | Yukie, after graduating from college in Japan, she worked for US public company in their treasury department. She moved to the US to pursue Master’ degree in accounting. She worked for Big 4 firms afterwards and joined EOS in September 2012. |
| Hobby | I am interested in solving issues, so I like to read mystery books, watching TV drama。 |
Worked under tight schedule of monthly / quarterly / annual closing to keep up with the worldwide deadlines, following up with internal and external audit, sparked me to continue to work hard for a CPA firm. I enjoy meeting the due dates and am striving to meet client’s expectation and more to become a trust advisor.
Masayo Horii
| Title | New Jersey Office Tax Senior Manager |
| Specialties | Corporate tax compliance, including consolidated and combined tax payments, ASC740 Income Tax Provisions, personal income tax including high net worth individuals |
| Qualifications | United States Certified Public Accountant (New York), affiliated with the American Institute of Certified Public Accountants |
| Career Background | Masayo graduated from Nagoya University, Faculty of Economics and moved to the United States. She worked on corporate and individual income tax at a major accounting firm, and she joined EOS in 2021. |
| Hobby | Piano and muscle training |
After graduating from a university in Japan, I moved to New York because I pursued my dream of living in the United States from a small town in Aichi. With my strong interest in US taxation, I would like to continue providing a good tax service that prioritize communication with our clients in both English and Japanese.
Junichiro Kawata
| Title | Los Angeles Office Audit Senior Manager |
| Specialties | Financial statement audits and internal controls audit based on US auditing standards, internal controls construction support, accounting policy creation support, and M&A advisory services |
| Qualification | United States Certified Public Accountant (California), Japanese Certified Public Accountant |
| Career Background | After graduating from university in Japan, Junichiro worked at a Japanese audit firm where his responsibilities included auditing publicly traded companies in the real estate, automotive parts manufacturing, and software sector. He moved to the United States and joined EOS in 2017. |
| Hobby | Junichiro enjoys visiting breweries near LA, he loves to play golf and video game |
My goal is to provide quality audit services and ensure client satisfaction. I always strive to provide good communication, which I believe is essential for client satisfaction. Since it is difficult to see what audit is from the clients’ standpoint, I believe such clear communication combined with my background in both US and Japan auditing background, I feel that I can effectively communicate with my clients and also with their Japanese parent companies and their auditors.
Terumi Koizumi
| Title | New Jersey Office Tax Senior Manager |
| Specialties | U.S. Corporate income tax, international taxation related to foreign companies expanding into the United States, specializing in Japanese companies, international taxation related to M&A, tax Internal Revenue Service and various state tax audit assistance, ASC 740 Income Tax Provisions |
| Qualification | United States Certified Public Accountant (New York ) |
| Career Background | After graduating from a university in Japan, Terumi studied accounting at Baruch College in New York. I joined the EOS NJ office in 2010. |
| Hobby | Love to read books, Yoga, cat lover |
With my expertise in taxation and my past experiences working in the service industry, I aim to provide services that place a strong emphasis on effective communication with our clients.
Michelle Leung
| Title | New Jersey Office Audit Senior Manager |
| Specialties | Financial statement audits |
| Qualifications | United States Certified Public Accountant (New York), Member of American Institute of Certified Public Accountants, New Jersey Society of Certified Public Accountants |
| Career background | After graduating from college, Michelle worked in a financial institution for a few years. Then joined EOS to become a CPA. She specialized in performing 401(k) audits during the years. She has been working for the service, distribution, and manufacturing industry. |
| Hobby | Travel and Hiking |
I currently provide audit and accounting services with care to clients of all sizes, from small enterprises to large well-known corporations. In recent years, the number of clients with subsidiaries and affiliates in China has increased, and I enjoy interacting with auditors oversea.
Owen Liu
| Title | New Jersey Office Tax Senior Manager |
| Specialties | General corporate income tax compliance and consultation, ASC740 Income Tax Provisions, Sales Tax/Use Tax consulting and compliance, personal income tax for expatriates, transfer pricing |
| Qualification | United State Certified Public Accountant (New York, New Jersey), affiliated with American Institute of Certified Public Accountants |
| Career Background | After graduating from University in Taipei, Owen pursued a master’s degree in accounting in the US in 2001. After graduation, he started to work for EOS and was licensed in 2008. He also left EOS to gain more knowledge in the private sector as a Controller position for a few years. Upon returning to EOS, he is extending his effort in servicing clients in all aspects of taxation focusing more on the manufacturing and distribution industries. |
| Hobbies | 米Travel, Sports, and family. Muscle builder is my goal! |
As I gained more knowledge in the corporate world as a Controller, I feel that I can better help the clients with their concerns from their point of view. I am striving to be my clients’ trusted tax advisor.
Tokumasa Matsumoto
| Title | Chicago Office Tax Senior Manager |
| Specialties | Corporate tax compliance and consulting for manufacturing and wholesale businesses, payroll calculation and personal income tax compliance for expatriates |
| Qualifications | United States Certified Public Accountant (Maine) |
| Career Background | After graduating from college and Japan, Tokumasa started to work for Japanese companies. Tokumasa had an opportunity to work in the United States, so he moved to the United States in 1993. He subsequently was able to obtain greencard. He then worked for several Japanese companies in the US, including a local accounting firm, before joining EOS in 2013. |
| Hobby | Soccer, Skiing, Scuba Diving in the past, currently, spending time with child |
I strive to provide detailed services from the client’s perspective by leveraging the various work experiences I have gained at private companies and accounting firms in Japan and the United States.
Ryo Oba
| Title | Chicago Office Audit Senior Manager |
| Specialties | Financial statement audits, internal control audits, financial settlement support for the automobile industry and trading companies, income tax provisions, retirement benefit accounting, consolidation/equity method accounting, conversion to functional currency, and support for setting up a financial reporting system for new corporations |
| Qualifications | United States Certified Public Accountant (Washington State) |
| Career Background | Ryo graduated from the University of Oregon. Prior to joining EOS in 2017, he was employed at Andersen (New York), KPMG (New York), Ernst and Young (New York, Mexico, and Chicago)). Ryo have been in the US for 12 years and in Mexico for 10 years. | Hobby | Bass fishing and long-distance driving (and started Skateboarding recently) |
When I first started out, I developed a strong foundation in accounting standards working for Andersen, KPMG, and Ernst and Young. I oversaw a general trading company and an electric power generation business that involved complex accounting procedures. At one point, I transferred to Mexico, where I gained practical experience in a foreign country, which differs from the standards of Japan and the United States. Over the years, I came up with the motto, "General Ledger = Bible." By understanding the company's current situation and looking at the financials in detail, I have learned how to prioritize, propose, develop, and implement sustainable and step-by-step improvement measures. We strive passionately to serve our customers with EOS, which allows us to flexibly respond to urgent issues that change daily with a sense of unity with our customers.
Junko Ochiai Peck
| Title | San Jose Office Tax Senior Manager |
| Specialty | Corporate tax compliance, ASC740 income tax provisions, individual income tax returns and tax consulting service. |
| Qualifications | United States Certified Public Accountant (California), affiliated with American Institute of Certified Public Accountants and California Board of Accountancy |
| Career Background | Junko graduated from Saitama University College of Liberal Arts and worked at a trading company for three years in Tokyo. She then lived in France for nine years to study language before moving to Silicon Valley in the United States, where she studied accounting and taxation at DeAnza College. She passed the American Certified Public Accountant Examination and have been working at the EOS San Jose Office since 2001. |
| Hobby | Dance |
Before I came to Silicon Valley in the United States in 1998, I was living in a different world from accounting field. I majored in French in college, worked as an office administrator in Tokyo during the bubble era, worked as a ski tour and gourmet tour guide in France, a Japanese language teacher, and a secretary. However, with all the experience I had, because I have a detailed personality, I feel that my being a tax accountant is my calling. I strive every day to provide flexible service to our customers.
Naoki Sakamoto
| Title | Chicago Office Tax Senior Manager |
| Specialties | Corporate tax consulting and compliance for manufacturing industries (mainly auto parts manufacturers), individual income tax consulting for expatriates, ASC740 tax provision advice |
| Qualifications | United States Certified Public Accountant (Washington), affiliated with the American Institute of Certified Public Accountants |
| Career Background | I graduated from Aoyama Gakuin University in Japan, then earned my MBA from Lewis University in the United States. I was involved in tax accounting for over 10 years at accounting firms in Japan and the US. |
| Hobby/td> | Snowboarding in winter, jogging in summer, aspiring to surfing one day |
EOS is an organization that brings together young people full of vitality and veterans with advanced expertise. Utilizing the wide range of experience working for both US and Japan Accounting firm that I have cultivated over the years, I am working hard every day to provide high-quality services that are tailored to our customers' needs and are committed to continuously growing.
Koki Takaoka
| Title | Los Angeles Office Tax Senior Manager | Specialties | U.S. Corporate income tax, inbound international taxation related to foreign companies expanding into the United States, state income taxes. |
| Qualification | United States Certified Public Accountant (California) |
| Career Background | Joined EOS Los Angeles office in 2014. |
| Hobby | Hiking and camping |
My goal is to provide excellent service to our clients by building a strong team capable of matching their high standards.
Naomi Takase
| Title | New Jersey Office Tax Senior Manager |
| Specialties | Corporate tax, partnership tax, S Corporation tax, including international tax issues with respect to US taxation, IRS Audit assistance, and consultation. |
| Qualification | United States Certified Public Accountant (Maine) Member of AICPA, NJCPA |
| Career Background | Naomi graduated from Kyoto University of Foreign Studies and worked as an accountant for private companies. While working in Japan, she became qualified as a CPA. Early in 2004, she started working for a CPA firm in the US. In 2014, she came to EOS to expand her career. She became Senior Manager in 2020. |
| Hobby | Piano, watching sports, Automobile related |
Building a trusting relationship with customers is not easy, but I believe it is the most important aspect of working together. Through our daily services, I aim to provide accurate and high-quality service in a timely manner.
Randy Teguh
| Title | Honolulu Office Tax Senior Manager |
| Specialties | Corporate, partnership、S Corporation and individual income tax, including international tax issues with respect to US taxation, IRS Audit assistance, high net worth individual tax return and consultation. |
| Qualification | United States Certified Public Accountant (California and Hawaii) |
| Career Background | Randy graduated from California State University, Long Beach. Prior to joining EOS Honolulu office in 2015, he worked for a regional Southern California accounting firm as an auditor.. |
| Hobby | Sports, Spending time with family and friends |
After graduating from California State University, Long Beach in 2011, I joined a regional firm as a tax and audit staff, close to where I grew up in Torrance, California. The experience I gained there was invaluable, as I was able to learn in both the Audit and tax departments at a high level. After getting married in 2014, my wife and I decided to move closer to her family in Hawaii in 2015 to start a family of our own. Since joining the EOS Honolulu office, I have gained experience in international tax issues and continue to learn and adapt to the tax and accounting landscape. I strive to grow alongside my clients and to provide personalized professional experience in order to achieve what is in their best interest.
