Union Square Ventures
New York City-based generalist venture capital firm founded in 2003; led Isembard's $50M Series A (March 2026).
Union Square Ventures (USV) is an early-stage venture capital firm based in New York City. Fred Wilson and Brad Burnham formed the partnership in 2003 and closed its first fund in 2004; it now invests through a Core Fund (Seed/Series A, internet-enabled businesses), a Climate Fund (Seed/Series A, climate mitigation and adaptation), and an Opportunity Fund (later-stage/special situations).
Overview
- Firm
- Union Square Ventures
- Headquarters
- New York, NY
- Founded
- 2003
- AUM
- Stages
- Seed, Series A
- Thesis
- Invests at the edge of large markets undergoing transformation from technological and societal change, backing large networks of engaged users differentiated by user experience and defensible through network effects.
Portfolio companies1
Partners0
No linked records yet.
Frequently asked
- What is Union Square Ventures?
- Invests at the edge of large markets undergoing transformation from technological and societal change, backing large networks of engaged users differentiated by user experience and defensible through network effects.
- What stages does Union Square Ventures invest at?
- Union Square Ventures invests at Seed, Series A.
Sources & citations3
Each claim links to its underlying source. Confidence reflects how directly the source supports the claim.
- 1
Union Square Ventures, founded in 2003 by Fred Wilson and Brad Burnham, invests via a Core Fund, Climate Fund, and Opportunity Fund.
Union Square Ventures: About Union Square VenturesVerified2026-08-08 - 2
Brad and I formed USV and went out onto the road for a year raising our first fund in 2003.
Fred Wilson (AVC): Turning TenVerified2013-09-01 - 3
Union Square Ventures led Isembard's $50M Series A in March 2026.
Isembard: Isembard Raises $50m Series A to Open 25 AI-Powered Factories Serving Aerospace and DefenceVerified2026-03-09