JAM Fund — Pre-Seed & Seed VC Firm ($250K–$1.0M Checks)
JAM Fund is a Pre-Seed, Seed venture capital firm based in Los Angeles, CA investing in Marketplace, Other, Consumer. The firm typically writes $250K–$1.0M checks and has 64 portfolio companies in our records.
- Check size
- $250K–$1.0M
- Portfolio
- 64 companies on record
- Partners
- 1 listed
- Stage
- Pre-Seed, Seed
- Sectors
- Marketplace, Other, Consumer, Fintech
- HQ
- Los Angeles, CA
- AUM
- Not in our records
Last verified: 2026-06-06
Pre-Seed, Seed
$250K – $1.0M
64+ companies
1 partner
Investment Thesis
Solo GP Justin Mateen backs early-stage companies in consumer marketplaces and gig economy ventures.
How JAM Fund invests
JAM Fund is a vc firm based in Los Angeles, CA. The firm invests at the Pre-Seed, Seed stages, with a focus on Marketplace, Other, Consumer, Fintech.
JAM Fund typically writes checks of $250K–$1.0M per investment.
JAM Fund has backed 64 companies in our records, including Hipcamp, Tinder, Alto Pharmacy.
Partners & Team
Industry Focus
Invests In
Portfolio Companies (64)
Other
Hipcamp
Tinder
Alto Pharmacy
Brex
Catalyte
Click Diagnostics
Common
Daily Harvest
FabFitFun
FOSSA
- •Raising at Pre-Seed, Seed? You're squarely in their sweet spot.
- •Lead with your fit in Marketplace, Other, Consumer — the sectors they actively back.
- •Size your ask to their typical $250K – $1.0M check.
- •warm intro preferred
- •Address your outreach to a specific partner, such as Justin Mateen, Founder / Principal.
- •A warm introduction beats a cold email. Get matched and request an intro.
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