JA

JAM Fund

VC
Los Angeles, CAWebsite

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 65 portfolio companies in our records.

How to approach: warm intro preferred
Stage

Pre-Seed, Seed

Check Size

$250K – $1.0M

Portfolio

65+ companies

Team

1 partner

Investor activity
Investments in last 12 months: 0

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 65 companies in our records, including Hipcamp, Tinder, Alto Pharmacy.

Meet the Team

JM

Justin Mateen

Founder / Principal

Early-stage technology
Consumer
AI
Marketplace
SaaS

Industry Focus

Invests In

Marketplace
Other
Consumer
Fintech

Portfolio Companies (65)

Other

HI

Hipcamp

Marketplace
TI

Tinder

AL

Alto Pharmacy

BR

Brex

CA

Catalyte

CL

Click Diagnostics

CO

Common

DA

Daily Harvest

FA

FabFitFun

FO

FOSSA

How to pitch JAM Fund
  • 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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