William Saito Laid the Foundation For His First Software Company at Age 10

Cyber Security specialist and venture capitalist William Saito was 10 years-old when he wrote his first computer software program. He launched his first business while still in Junior High School. Calling his cybersecurity company I/O Software he would incorporate the company in 1991.


In 1969 his parents who were Japanese Nationals immigrated to the US. William would be born two years later. After graduating from La Verne California’s Damien High School he enrolled at the University of California Riverside. He would also study Biomedical Science at the University of California’s Los Angeles campus.


William Saito sold I/O Software to Microsoft. Upon completion of the transaction, he returned to his ancestral land. In 2012 he settled in Tokyo and began his next business venture InTecur. InTecur invests in and provides consultation to innovative tech companies.

In 2011 his investments in start-up companies in Japan earned him a trip to the 2011 World Economic Forum as a Young Global Leader. Two years later William Saito joined the Japanese Government where he would hold a variety of posts.


Prime Minister Shinzo Abe tapped William Saito to serve as his top cybersecurity advisor. Later William would act as a cybersecurity advisor to the Cabinet Office and Ministry of Economy, Trade, and Industry. A lecturer himself William also advised the Ministry of Education, Culture, Sports, Science, and Technology on matters concerning education.


After a tsunami caused multiple meltdowns at the Fukushima Nuclear Plant William Saito was appointed Chief Technology Officer. In that capacity, he provided the Diet with IT and technical guidance during the investigation into the Fukushima reactor meltdowns.


Upon leaving public service William Saito went to work for Japan Airlines and helped establish the airline’s IT department. While with JAL he also held the positon of General Manager of Digital Innovation Promotion. From 2014-2017 William sat on the Japan Time’s Advisory Board. He has also been a consultant to the ad agency Hakuhodo and the clothing conglomerate Fast Retailing.


Among William Saito’s accolades Ernst and Young, the NASDAQ, and USA Today rated him among the “100 Most Influential People for Japan”. He has been named to the Global Shapers Foundation Board and the Global Agenda Council.

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