J-Seed Ventures

Ryusuke Utsumi, the firm's founder, serves as President and CEO and is the primary decision-maker on investments. Utsumi has operated at the intersection of US technology and Japanese corporate strategy since the early 2000s, and the firm's compact structure means investment committee decisions flow directly through him and a small senior team. Public records do not identify additional named partners or IC members.

Japanese corporate partners are not passive LPs but active commercial partners who agree to distribute or integrate portfolio-company products. J-Seed negotiates these partnerships as part of the initial investment, giving startups a pre-wired route to Japanese enterprise revenue. The corporate partners receive preferred access to emerging technology and, in some cases, equity or revenue participation in the Japanese entity.

The firm draws primarily from Silicon Valley, Israel, and South Korea, with a growing emphasis on Southeast Asian founders. Deal flow is concentrated in regions where technical talent is deep and Japanese corporates have strategic technology gaps. J-Seed's Tokyo headquarters serves as the commercial hub where these international startups interface with Japanese enterprise distribution partners.