Investor profile
Julien Brissonneau
Accelerator, Syndicate / Angel group, Venture capital & Venture Partner at Pioneer Fund, Investor at South Park Commons
Julien Brissonneau works as a Venture Partner at Pioneer Fund. The firm's known portfolio counts 39 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Venture Partner at Pioneer Fund, whose known portfolio counts 39 companies
- Milk Video
- Atmos
- Hubble
- Atlas
- Taiv
- Thoughtly
- Alien
- Fractile
- Depot
- Harper
- Bolna
- Ellipsis
- and 27 more
Investor at South Park Commons, whose known portfolio counts 10 companies
- Fulcrum
- Goodfire
- Profound
- Escargot
- Nyne.ai
- The Sentience Company
- Dentronic
- Cent
- Koah Labs
- Noble Machines
Investor Profile
Founders in the listed sectors AI, Commerce, Consumer and FinTech, and focus areas AI Applications, Analytics, Biotech and Cloud Infrastructure fall inside that listing.
Pioneer Fund appears in Growth, Late-Stage and Pre-Seed rounds across its known deals.
What the affiliated firm has backed is the closest available signal on whether Julien Brissonneau is worth approaching.
Colleagues
Showing 20 of 108
Aditya Agarwal
Managing Partner
San Francisco, United States
Akshay Singhal
Member
Bengaluru, India
Ruchi Sanghvi
Founder and Partner
San Francisco, United States
Rohini Pandhi
Product Leader
San Francisco, United States
Mark Jacobstein
General Partner
Stanford, United States
Josue Gio
Venture Partner
Mexico City
Dave Messina
General Partner
San Diego, United States
Ti Zhao
Senior Venture Partner
San Francisco, United States
Ian Burgess
Venture Partner
Toronto, Canada
Deepanshu M.
Venture Partner
New York, United States
Nicholas Goldner
Venture Partner
San Francisco, United States
Sherwin Gandhi
Venture Partner
Austin, United States
Steve Johnston
Venture Partner
Austin, United States
Evan Tana
General Partner
San Francisco, United States
Michael Heinrich
Venture Partner + Angel Investor
Singapore
Afraj Gill
Limited Partner
San Francisco, United States
Ambrish Tyagi
Investor
San Francisco, United States
Steli Efti
Senior Venture Partner
Austin, United States
Justin Olshavsky
General Partner
United States
Chris Williams
Venture Partner
Boise, United States
Frequently asked questions
Who is Julien Brissonneau?
Julien Brissonneau is an accelerator partner and syndicate member based in Mountain View, California, United States, listed as Venture Partner at Pioneer Fund. The known portfolio of that firm counts 39 companies. That portfolio belongs to the firm, not to Julien Brissonneau personally.
What does Julien Brissonneau invest in?
Listed sectors include AI, Commerce, Consumer and FinTech; listed focus areas include AI Applications, Analytics, Biotech and Cloud 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 Julien Brissonneau invest at?
Pioneer Fund appears in Growth, Late-Stage and Pre-Seed rounds across its known deals, and Julien Brissonneau is listed there as Venture 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 Julien Brissonneau listed at?
Julien Brissonneau is listed as Venture Partner at Pioneer Fund. 108 other people in the database share a firm with Julien Brissonneau.
How do I contact Julien Brissonneau?
A phone number and a LinkedIn page are on file for Julien Brissonneau. They are readable inside RaiseHunt after you create an account. The database holds no email address 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