William Barnum is a Senior Partner at Brentwood Associates, whose known portfolio counts 9 companies.
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Investment focus
- Stage
- GrowthLate-Stage
Contacts
Affiliated funds' portfolios
Senior Partner at Brentwood Associates, whose known portfolio counts 9 companies
- KeyMe
- ClassWallet
- LegalMation
- L Nutra
- Throne Labs
- Pacifica Beauty
- Medbridge
- Snooze
- Wingstop
Investor Profile
Founders in the listed sectors AI, Commerce, Consumer and Education, and focus areas Biotech, CPG, Chemical and Communications Infrastructure fall inside that listing.
Brentwood Associates appears in Growth and Late-Stage rounds across its known deals.
The firm portfolio and the focus above give founders context on whether William Barnum matches their raise.
Colleagues at Brentwood Associates
Patrick McGrorey
Principal
Santa Monica, United States
Jonathan Berkowitz
Operating Partner
Middleton, United States
Chris Scherer
Private Equity Investor
Los Angeles, United States
Eric Reiter
Partner
Los Angeles, United States
Katherine Mossman
Beauty & Wellness Industry Partner
Beverly Hills, United States
Craig Milius
Partner
Austin, United States
Ryan Foltz
Managing Director
Los Angeles, United States
Alan Chen
Vice President
Los Angeles, United States
Rahul Aggarwal
Partner
Manhattan Beach, United States
Steve Moore
Partner
Los Angeles, United States
Toros Yeremyan
Managing Director
Los Angeles, United States
Chris Reekie
Managing Director
Manhattan Beach, United States
Peter Edelson
Principal
Los Angeles, United States
Daniel Eder
Private Equity Vice President
Los Angeles, United States
Ruth D.
Private Equity Partner
San Francisco, United States
Frequently asked questions
Who is William Barnum?
William Barnum is a private equity investor based in Los Angeles, California, United States, listed as Senior Partner at Brentwood Associates. The known portfolio of that firm counts 9 companies. That portfolio belongs to the firm, not to William Barnum personally.
What does William Barnum invest in?
Listed sectors include AI, Commerce, Consumer and Education; listed focus areas include Biotech, CPG, Chemical and Communications Infrastructure. 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 William Barnum invest at?
Brentwood Associates appears in Growth and Late-Stage rounds across its known deals, and William Barnum is listed there as Senior Partner. 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 William Barnum listed at?
William Barnum is listed as Senior Partner at Brentwood Associates. 15 other people in the database share a firm with William Barnum.
How do I contact William Barnum?
A LinkedIn page is on file for William Barnum. It is readable inside RaiseHunt after you create an account. The database holds no email address and no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal