StartupsSilicon Valley venture capital giant looks to support Japan's defense startupsAndreessen Horowitz co-founder Ben Horowitz, left, met with Japanese Prime Minister Sanae Takaichi and Deputy Chief Cabinet Secretary Kei Sato in Tokyo on May 14. (Photo by Ken Suzuki)RYUTO IMAOMay 14, 2026 23:21 JSTTOKYO -- Andreessen Horowitz co-founder Ben Horowitz has told Japanese Prime Minister Sanae Takaichi that the California-based venture capital giant plans to open a Tokyo office by summer to expand investment in Japanese startups.