FirstMark

firstmark.com ↗Activity from announced rounds

Activity in this selectionUnited States · Oct 21, 2026 · Sep 22, 2026

An early-stage venture capital firm in New York, with recorded activity across enterprise software, infrastructure and fintech.

Investment focus

FirstMark is a New York-based early-stage venture capital firm. Its official portfolio covers areas including enterprise software, data infrastructure, fintech, healthcare and consumer technology. The firm also builds networks connecting founders with operators and the wider technology community.

Activity recorded on RoundOS

RoundOS records include Liquid Compute, Rillet, Onyx Security, Tracebit and SurrealDB. The published announcements show participation in compute-market infrastructure, accounting software, security and databases. This is a selection of recorded financings, rather than a complete account of FirstMark’s investments.

Sources
Rounds participated in
3
Confirmed lead rounds
3
All roles disclosed
New companies
3
First participation on record · 0 follow-on
Funding in participating rounds
$112M
3 disclosed · full round size, not this investor’s share

By stage

Series A2
Series B1

By primary sector

Developer tools1
Fintech1
Healthtech1

By country

United States3

Rounds

3 in this selection
Daytona

Provides infrastructure for AI agents with programmatic composable computers

$60MSeries B
Lead
Baba

Coordinates healthcare for Medicare members through dedicated advocates and licensed therapists supported by specialized AI.

$40MSeries A
Lead
Fragment

Ledger, payment and reconciliation infrastructure for software and AI agents.

$12MSeries A
Lead