# JAM Fund

JAM Fund is a Venture Capital based in Los Angeles, United States.

## Overview

- **Organization type:** Venture Capital
- **Headquarters:** Los Angeles, United States
- **Region:** North America
- **Address:** Los Angeles, CA, United States
- **Founded:** 2011
- **Assets under management:** Undisclosed
- **Website:** jamfund.com

## Regulatory record

- **CRD number:** 311616
- **SEC file number:** 802-120020
- **Registration status:** Registered
- **Reports private funds:** Yes
- **IAPD record:** https://adviserinfo.sec.gov/firm/summary/311616

## About

JAM Fund is an exempt reporting adviser. It manages concentrated portfolios of long positions in public equities. The firm focuses on a small number of high-conviction ideas.

## Sectors

- Enterprise Software
- AI/ML
- FinTech
- Cybersecurity
- ClimateTech

## People

- Justin Kan — Founder and General Partner
- Michael MacCombie — General Partner

## Questions

### Who runs investment decisions at JAM Fund?

Justin Kan and Michael MacCombie serve as General Partners and make all investment decisions. Kan founded the firm in 2011 after the sale of Twitch to Amazon. MacCombie joined later, formalizing a partnership structure from Kan's original solo-GP setup.

### How does JAM Fund source proprietary deal flow?

The firm's deal flow relies heavily on Justin Kan's network from Twitch, Y Combinator, and his online presence. Many founders approach JAM Fund directly because they value Kan's operator experience. The firm also invests frequently alongside Y Combinator batches and elite seed funds.

### Does JAM Fund participate in fund commitments or only direct deals?

JAM Fund focuses almost exclusively on direct seed-stage investments. There is no public record of the firm making fund-of-funds commitments to other venture managers. The firm writes first-check capital into startups directly.

### What investment stages does JAM Fund typically target?

JAM Fund targets pre-seed and seed rounds. The firm often leads or co-leads these early rounds. It does not publicize a growth-stage or Series B+ practice.

### What is JAM Fund's known posture on co-investments alongside external GPs?

JAM Fund routinely co-invests with other top-tier seed funds and angel investors. Portfolio company syndicates have included a16z, Founders Fund, and Seven Seven Six. The firm does not require board seats and is often viewed as a founder-friendly syndicate partner.

## Related profiles

- [Jamestown](https://altss.com/profile/jamestown)
- [JamJar Investments](https://altss.com/profile/jamjar-investments)

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Last updated: 2026-08-14T12:30:00.000Z

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