Key members

The team of Plus One Service Co., Ltd./Takigawa Tax Accountant Office specializes in accounting, payroll calculation, social insurance, and legal procedures, such as business registrations and tax conventions between Japan and other countries. We challenge ourselves to be our clients’ best partner in business on any given day.

Representative Director

Taku Terao

Started his career at a Japanese tax office. After gaining a year’s experience, he joined Plus One Service Co., Ltd. in September 2002. He is in charge of accounting and all other services for both Japanese and international clients. He was registered as the representative director as a successor to Yoshikazu Takigawa in October 2016.

Executive Advisor

Yoshikazu Takigawa

Worked for a Swedish company in Japan for 28 years and gained experience predominantly in accounting, logistics, and personnel management. He initiated the establishment of Plus One Service Co., Ltd. in 1993 as its Representative Director. In September, 2021, he resigned from his position in the company. He continues to be involved with management matters and support the company as an Executive Advisor

Certified Public Tax Accountant

Hisako Takigawa (Certified Tax Accountant)

Co-founded Plus One Service Co., Ltd. and Takigawa Tax Accountant Office together with Yoshikazu Takigawa. With seven years’ experience at an international law office and over 10 years’ experience working for foreign-affiliated companies (U.S. and Swedish) in Japan, her knowledge and deep understanding of the business activities of foreign-affiliated companies in Japan gives Plus One Service Co., Ltd. an edge.

Senior Staff

Rui Sato

Ai Murakami

Megumi Taiji

Junior Staff

Junko Terada

Gen Iwata

Contract employees

Midori Saito

Reiko Kato

Akiko Toyoda


Sayaka Doi

Kotaro Kawasaki

Contract tax accountants

Rumiko Matsumoto and one other person