About Muso & Co.


Muso & Co. is a Japanese-U.S. Certified Public Accountant (CPA) firm providing accounting services in California, Texas, and Nevada. We have provided accounting, tax return, and management consulting services to Japanese companies in the U.S. since 1986. Muso & Co. is committed to the success of all our client’s business in the U.S. and provides solutions centered on accounting and tax services.

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Shunji Muso

Our Mission

As accounting and tax professionals, we provide our clients with a variety of world-class business management advice and proactive, proactive measures to help them succeed in their business quickly and efficiently. Your success is our ultimate goal.

To this end, we strive to work “as one” with all of our clients’ stakeholders, such as owners, employees, and other professionals, to ensure the success of our clients’ businesses.

As a member of our client’s team, Muso & Co. is committed to working in harmony with all members of our team.

“To contribute to the development of society by pursuing the material and intellectual happiness of each and every employee.”


Corporate Information

Company name: Muso&Co.

Phone number: 323-526-9700

email: info@musoco.net

Headquarters: P.O. Box 1785, 245 W. Garvey Ave, Monterey Park, CA 91754

Los Angeles, California; San Antonio, Texas; Las Vegas, Nevada; Tokyo, Japan; Osaka, Japan



1986 Opened Los Angeles, California office / Japanese and U.S. CPA firm

2010 Las Vegas, Nevada branch office opened

2014 Opening of Texas office (Houston and San Antonio)

Philosophy – Management Philosophy

Management and employees will treat each other as family, and will strive to help and encourage each other to do their jobs without forgetting to be grateful.

As accounting professionals, we will act as a group that puts ourselves in the shoes of our clients and society, and will consider and practice what is useful to our clients and society.

We aim to be an organization in which company information is open to each employee, we respect each person’s opinion and use it to manage the company, and we act in a way that benefits our fellow workers and customers rather than individual achievements.

We will engage in our work every day, keeping in mind that profit is the price of customer satisfaction and that only management that contributes to customers and society is important.


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Contact Information






P.O. Box 1785, 245 W. Garvey Ave, Monterey Park, CA 91754