About OC & Associates

OC & Associates, a member of Kreston International, is a group of professional service companies created specifically to service foreign subsidiaries and branches in Japan. Select partners of OC & Associates K.K., the accounting unit, are also the partners of OC & Associates Tax Co., a regulated tax services firm and OC & Associates HR Co., a regulated social insurance services firm. Such equity structure allows for close integration among the three entities, while also complying with regulatory requirements.

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Client Portal

Client Portal

By utilizing cloud-based technology, we are constantly seeking ways to make our operations more efficient and transparent. OC & Associates has developed five proprietary cloud-based systems (“WebManager”series) to provide clients with tools to make their tasks a little easier as well as maximize efficiency in our services. All systems were developed with a focus on being simple and easy to use.

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Associated Firms

Global Affiliations

Outsourcing Fee Calculator

Transparency in our services starts with our fee quotations. This will involve answering a series of questions to understand more about your business and needs. Please click here if you’re interested.