Tony Liu is an angel investor based in San Francisco, California, United States. The known portfolio is one company, Mem.
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Investment focus
Contacts
Tony Liu portfolio company (1)
- Mem
Affiliated funds' portfolios
Partner at Costanoa Ventures, whose known portfolio counts 10 companies
- Manifold
- Shepherd
- Smack Technologies
- Natter
- Tenna Systems
- IVO
- Marble Health
- Mindtrip
- Midship
- Spectral Compute
Investor Profile
The listing covers sectors AI, FinTech and SaaS, and focus areas AI Infrastructure, Banking, Big Data and Cybersecurity. Startups operating in these areas may find Tony Liu relevant.
Tony Liu is listed for Seed and Series A rounds in the database.
The portfolio and focus above give founders context on whether Tony Liu matches their raise.
Colleagues at Costanoa Ventures
Martina Lauchengco
Partner
San Francisco, United States
Greg Sands
Founder
Palo Alto, United States
Amy Cheetham
Partner
San Francisco, United States
David G. Cheng
General Partner
San Francisco, United States
Michelle McHargue
Partner
San Francisco, United States
Jim Wilson
Partner
Burlingame, United States
John Cowgill
General Partner
San Francisco, United States
Mark Selcow
General Partner
San Francisco, United States
Sakia Bugti
Partner
San Francisco, United States
Nancy Katz
Partner
Palo Alto, United States
Nicole Seah
Investor
San Francisco, United States
Alice R.
Investor
Palo Alto, United States
Mimi S.
Investor
New York City, United States
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Frequently asked questions
Who is Tony Liu?
Tony Liu is an angel investor based in San Francisco, California, United States with one known investment on file, Mem. The sections above list the sectors, stages and firms attached to that record.
What does Tony Liu invest in?
Listed sectors include AI, FinTech and SaaS; listed focus areas include AI Infrastructure, Banking, Big Data and Cybersecurity. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Tony Liu invest at?
The database lists Tony Liu for Seed and Series A rounds. 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 Tony Liu listed at?
Tony Liu is listed as Partner at Costanoa Ventures. 13 other people in the database share a firm with Tony Liu.
How do I contact Tony Liu?
An email address, a phone number and a LinkedIn page are on file for Tony Liu. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal