About Us
REVUP ADVISORS
Empowering Businesses for Success
At RevUp Advisors, we empower businesses to reach their full potential through expert accounting and tax solutions. Founded in February 2025, we deliver business advisory startup accounting services, and enterprise tax support to organizations at every stage of growth – from innovative startups to established enterprises optimizing their results.
Our Professionals
Kumiko Watanabe
Principal
Terumi Koizumi
Tax Managing Director
Shunichi Tsutsui
Transfer Pricing Managing Director
Keiko Arai
Tax Senior Associate
Abdul Ahmad
Accounting Support Specialist
Yoichi Ishizuka
Advisor
Expertise You Can Rely On
Whether you manage your U.S. business from another state or another country, we take the complexity out of the equation. From ensuring compliance with local regulations to managing daily accounting matters, we empower you to concentrate on your core business goals while we handle the rest.
What sets us apart is our unwavering commitment to our clients’ success.
Whether you are launching a new venture, scaling rapidly, or managing a mature organization, our seasoned professionals offer business growth support and professional tax advisory to help you make informed decisions and achieve your goals.
Join the many businesses that trust RevUp Advisors for accounting, corporate tax management, and trusted business advisory services. We manage accounting and tax needs with precision and care, building a stronger financial future for clients through financial optimization for businesses and dedicated, ongoing support.
Our Mission
Our mission is clear: we provide businesses with the strategic financial planning and guidance they need to thrive in an ever-changing market.
Our team combines technical expert accounting services with a deep understanding of our clients’ unique challenges, delivering tailored business solutions that go beyond the numbers and create measurable impact.





