top of page


We are a trading company established to support businesses that generally do not have the financial or marketing resources to promote their products overseas. 

Our vision is to be of assistance to these companies in creating new opportunities and revenue streams in overseas markets.


Mas Shimodaira:

  • Studied abroad in the United States in 1976.

  • In 1980, he founded Tokyo Limousine, Inc. in San Francisco, successfully establishing a business supporting executives of many Japanese companies and key figures in politics and business. 

  • In 1990, he expanded his business to the rapidly growing Silicon Valley, aiming to expand his clientele to more American corporations. He acquired Ishi Limousine, Inc., a renowned limousine company in the Bay Area, to further this goal. Over the years of managing the limousine business, he had the honor of serving various clients, including successive Japanese prime ministers and, in 1985, the current Emperor on his return journey from studying in the UK, and in 1994, the former Emperor and Empress on their official visit to the United States.

  • In 2002, he established a new California corporation, MS4, LLC, to support the expansion of new sales channels between Japan and the United States, leveraging his extensive experience in American business to serve as a bridge between clients and both countries. 

  • In 2017, he began his export and distribution of California wines to Japan. Additionally, he organizes wine tasting events to help cultivate California wine fans in Japan. 

  • In 2023, he began importing Japanese sake to the United States. Through this new venture, he hopes to grow Japanese sake fans all throughout California and beyond.

Mas Shimodaira
bottom of page