Data sourced from SEC EDGAR filingsCompiled by Free Startup Funding DatabaseLast updated: Oct 2026
SEC Form D Verified

Firstmark Capital J1

Venture Capital Firm | Contact & Fund History

NEW YORK, NY
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Funds Tracked

1

Total Raised

$100M

Latest Fund

FirstMark Capital J1, L.P.

How to Contact Firstmark Capital J1

Official Contact Channels

firstmark.com

General Partners

Eric Cheung; Richard R. Heitzmann; Amish A. Jani

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4 team members listed on the firm's website

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Firstmark Capital J1 Team

  • Rick Heitzmann

    Founder & Partner

  • Amish Jani

    Founder & Partner

  • Matt Turck

    Partner

  • Adam Nelson

    Partner

Listed on the firm's own website: firstmark.com. Titles can change; check the firm's site before reaching out.

Fund History

FirstMark Capital J1, L.P.

Frequently Asked Questions

How do I contact Firstmark Capital J1?

To contact Firstmark Capital J1: visit firstmark.com; their team of 4 is listed on their website.

How many funds has Firstmark Capital J1 raised?

Firstmark Capital J1 has raised 1 tracked fund, totaling $100M in tracked capital.

Where is Firstmark Capital J1 located?

Firstmark Capital J1 is headquartered in NEW YORK, NY.

Firm Details

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Data Sources: SEC EDGAR filings, company disclosures, and verified public records.

Profile updated: Oct 23, 2026