We provide comprehensive professional services in relation to accounting and tax in both English and Japanese to support your business in Japan.


1987 Sugiyama & Co CPA established

2008 Sugiyama Certified Public Tax Accountans’s Corporation established

Our Group

KS & Associates LLC
Incorporated for the purpose of providing consulting works to companies doing international business mainly by CPAs used to work for DTT and have had international business experience

Chairman – Mr.Y.Kiguch (CPA) Used to be a partner of DTT international department
Representative Partner – Mr.M.Sugiyama (CPA & CPTA)

We have also business network with labor consultant and legal consultant who are able to provide services in English.


  • From 9:30 AM to 6:00 PM on week days

  • FAX


  • Address

    Kogai Bldg. 6th Floor 2-8-2 Shibakoen
    Minato-ku Tokyo 105-0011

  • Nearest Station

    2min from Shibakoen station – Toei Mita Line
    5min from Daimon station – Toei Oedo/Asakusa Line
    8min from Hamamatsucho station – JR Yamanote Line