Latest fund size
Undisclosed
Announced
November 12, 2026
Global HQ
Japan
Members only
Check size
$100K-$300K
Members only
Stage focus
Seed
Members only
Regions of investment
Asia
Members only
FOURSEAS is a venture capital firm based in Okinawa City, Japan, led by CEO Kenichiro Toyosato. The company was established in 2017 and also runs the Koza Startup Arcade and the KOZAROCKS startup conference. It manages the Shinryo Fund, an independent Okinawa-based fund that aims to be a bridge between Japan and the rest of Asia.
Members only
Names, roles, emails and LinkedIn profiles for the team, plus the fund's website.
FOURSEAS invests mainly in seed-stage startups connected to Okinawa, with a focus on tourism, transportation, energy, the circular economy, green transformation, and healthcare.
The firm favors companies that can grow beyond Okinawa's small local market into the rest of Japan and Asia.
Its goal is to build a local source of seed capital so that the returns from startup growth stay in the region.
Members only
What the fund looks for in founders and which sectors it backs.
FOURSEAS completed the final close of the Shinryo Fund, also written as Tsuryo Fund, announced in November 2026.
Investors include Koza Shinkin Bank, Okinawa Kaiho Bank, Bank of the Ryukyus, Yakushodo, and TAKAGI Group, along with other companies and individuals.
Members only
Fund size, LPs and track record.
Leadership
Investment Strategy
FOURSEAS typically invests $100,000 to $300,000 per company, mainly at the seed stage, and supports founders through the startup facilities and community it operates in Okinawa City.
Notable Investments
Notable Exits
Not disclosed
Members only
Leadership, investment strategy, notable investments and exits.
