Investor profile
Isamu Sai
Fund of funds, Private equity, Venture capital & Investor at Adams Street Partners
Isamu Sai is an Investor at Adams Street Partners, whose known portfolio counts 11 companies.
Is Isamu Sai a fit for your startup?
Paste your website. AI checks the fit and scores every other investor too.
Investment focus
- Stage
- GrowthLate-Stage
Contacts
Affiliated funds' portfolios
Investor at Adams Street Partners, whose known portfolio counts 11 companies
- Pomelo
- Empathy
- Vercel
- ClickHouse
- Arize AI
- Cato Networks
- Cyberhaven
- Integral Development Corp
- EvenUp
- Rubix
- Turquoise
Investor Profile
Founders in the listed sectors AI, Consumer, FinTech and Healthcare, and focus areas Analytics, Cloud Infrastructure, Cybersecurity and Data fall inside that listing.
Stage-wise, the deals at Adams Street Partners cluster around Growth and Late-Stage rounds.
The firm portfolio and the focus above give founders context on whether Isamu Sai matches their raise.
Colleagues at Adams Street Partners
Showing 20 of 65
Frequently asked questions
Who is Isamu Sai?
Isamu Sai is a fund of funds investor and private equity investor based in Tokyo, Japan, listed as Investor at Adams Street Partners. The known portfolio of that firm counts 11 companies. That portfolio belongs to the firm, not to Isamu Sai personally.
What does Isamu Sai invest in?
Listed sectors include AI, Consumer, FinTech and Healthcare; listed focus areas include Analytics, Cloud Infrastructure, Cybersecurity and Data. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Isamu Sai invest at?
Adams Street Partners appears in Growth and Late-Stage rounds across its known deals, and Isamu Sai is listed there as Investor. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Isamu Sai listed at?
Isamu Sai is listed as Investor at Adams Street Partners. 65 other people in the database share a firm with Isamu Sai.
How do I contact Isamu Sai?
An email address and a LinkedIn page are on file for Isamu Sai. The address stays masked on this page and is readable inside RaiseHunt after you create an account. The database holds no phone number for this profile.
Skip the browsing. Let AI find your ideal investors in one minute.
Paste your startup website and AI picks your best-fit investors out of 135,000+ profiles.
Data: RaiseHunt investor dataset · Snapshot 6 September 2026 · How this data is built · Report a correction or request removal