An angel investor and operator angel based in Park City, Utah, United States, Matthew Keiser has 3 known investments: SafeGraph, SeriesX and FanBridge.
Is Matthew Keiser a fit for your startup?
Paste your website. AI checks the fit and scores every other investor too.
Investment focus
- Stage
- Seed
Contacts
Matthew Keiser portfolio companies (3)
- SafeGraph
- SeriesX
- FanBridge
Affiliated funds' portfolios
CEO at Zeta Global, whose known portfolio counts 2 companies
- Visto
- Gujarat Toolroom
Investor Profile
The listing covers sectors Consumer and SaaS, and focus areas Advertising, Brand Marketing, Consumer Internet and Email Marketing. Startups operating in these areas may find Matthew Keiser relevant.
Stage-wise, the known deals cluster around Seed rounds.
The portfolio and focus above give founders context on whether Matthew Keiser matches their raise.
Colleagues at Zeta Global
Raveen Sastry
Strategic Advisor
Bengaluru, India
Jarrod Dicker
SVP
New York, United States
Steven Vine
EVP, Corporate Development & General Counsel
New York, United States
Neej Gore
Chief Data Officer
San Francisco, United States
Bashir Eghbali
EVP, Acceleration
San Francisco, United States
Benjamin Wilson
Investor
Nashville, United States
John Sculley
Investor
Palm Beach, United States
Similar investors
Showing 20 of 100
Michael Kassan
angel investor and operator angel
Los Angeles, United States
Patrick Keane
Investor
New York, United States
Mark G.
Founder & GP
New York, United States
Ron Selvey
angel investor
San Luis Obispo, United States
Matt B.
angel investor and operator angel
San Francisco, United States
Ron Yang
angel investor and operator angel
Los Angeles, United States
Peter Ostick
angel investor and operator angel
Byron Bay, Australia
Matt Michelsen
Founder Emerius
Austin, United States
John Surdakowski
angel investor and operator angel
New York, United States
Bobby Gaza
angel investor and operator angel
Oakland, United States
Steven Erich
angel investor
Los Angeles, United States
Mark Caron
angel investor and operator angel
New York City, United States
John Keister
angel investor and operator angel
Los Angeles, United States
Philip Green
General Partner
London, United Kingdom
Matt Kellogg
angel investor
Seattle, United States
David Quiec
angel investor and operator angel
Palo Alto, United States
Max Altschuler
Founder & General Partner
San Francisco, United States
Mark Evans
angel investor and operator angel
Denver, United States
David Berkowitz
angel investor
New York, United States
Michael Montero
General Partner
New York, United States
Frequently asked questions
Who is Matthew Keiser?
Matthew Keiser is an angel investor and operator angel based in Park City, Utah, United States with 3 known investments on file, among them SafeGraph, SeriesX and FanBridge. The sections above list the sectors, stages and firms attached to that record.
What does Matthew Keiser invest in?
Listed sectors include Consumer and SaaS; listed focus areas include Advertising, Brand Marketing, Consumer Internet and Email Marketing. 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 Matthew Keiser invest at?
The known deals of Matthew Keiser include Seed 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 Matthew Keiser listed at?
Matthew Keiser is listed as CEO at Zeta Global. 7 other people in the database share a firm with Matthew Keiser.
How do I contact Matthew Keiser?
An email address and a LinkedIn page are on file for Matthew Keiser. 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 5 September 2026 · How this data is built · Report a correction or request removal