# Who Invests With Third Prime: 19 Co-Investors (2026) > The 19 investors that have backed two or more of the same startups as Third Prime, by kind: vc firms and accelerators. Most often Y Combinator. Source: https://millionrounds.com/portfolio-maps/third-prime-co-investors (Millionrounds; every figure on the page links to its filing or article) ## VC firms 16 - [Valar Ventures](https://millionrounds.com/fund/valar-ventures-llc) - [Rosecliff Ventures](https://millionrounds.com/fund/rosecliff) - [Ride Ventures](https://millionrounds.com/fund/ride-ventures) - [Collaborative Fund](https://millionrounds.com/fund/collaborative-fund) - [The Gramercy Fund](https://millionrounds.com/fund/the-gramercy-fund) - [*VV* Valar Ventures/ Third Prime](https://millionrounds.com/fund/valar-ventures-third-prime) - [Digital Currency Group](https://millionrounds.com/fund/digital-currency-group) - [Camber Creek](https://millionrounds.com/fund/camber-creek) - [Primary Venture Partners](https://millionrounds.com/fund/primary-venture-partners) - [Antler](https://millionrounds.com/fund/antler) - [Blackhorn Ventures](https://millionrounds.com/fund/blackhorn-ventures) - [Bossa Invest](https://millionrounds.com/fund/bossa-invest) - [SV Angel](https://millionrounds.com/fund/sv-angel) - [Liquid 2 Ventures](https://millionrounds.com/fund/liquid-2-ventures) - [First Round Capital](https://millionrounds.com/fund/first-round-capital) - [Company Ventures](https://millionrounds.com/fund/ag-ventures) ## Accelerators 3 - [Y Combinator](https://millionrounds.com/fund/y-combinator) - [The House Fund](https://millionrounds.com/fund/the-house-fund) - [Plug and Play](https://millionrounds.com/fund/plug-and-play) ## Segment by segment ### VC firms 16 investors - [**Valar Ventures**](https://millionrounds.com/fund/valar-ventures-llc) VC firm United States 4 backed - [**Rosecliff Ventures**](https://millionrounds.com/fund/rosecliff) VC firm United States 3 backed - [**Ride Ventures**](https://millionrounds.com/fund/ride-ventures) VC firm United States 3 backed - [**Collaborative Fund**](https://millionrounds.com/fund/collaborative-fund) VC firm United States 2 backed - [**The Gramercy Fund**](https://millionrounds.com/fund/the-gramercy-fund) VC firm United States 2 backed - [*VV* **Valar Ventures/ Third Prime**](https://millionrounds.com/fund/valar-ventures-third-prime) VC firm - 2 backed - [**Digital Currency Group**](https://millionrounds.com/fund/digital-currency-group) VC firm United States 2 backed - [**Camber Creek**](https://millionrounds.com/fund/camber-creek) VC firm United States 2 backed ### Accelerators 3 investors - [**Y Combinator**](https://millionrounds.com/fund/y-combinator) Accelerator United States 6 backed - [**The House Fund**](https://millionrounds.com/fund/the-house-fund) Accelerator United States 2 backed - [**Plug and Play**](https://millionrounds.com/fund/plug-and-play) Accelerator United States 2 backed **How this map is made.** Every investor here has backed two or more of the same startups as Third Prime, in rounds we track. Grouped by kind, each ranked by how many startups it shares with Third Prime. Rebuilt nightly; updated 15 November 2026. ## More portfolio maps [All portfolios](https://millionrounds.com/portfolio-maps) [Portfolio map **Third Prime portfolio map** 27 startups · $1.1B](https://millionrounds.com/portfolio-maps/third-prime-portfolio-map)[Sector portfolio **Third Prime's Fintech portfolio** 13 startups · $793M](https://millionrounds.com/portfolio-maps/third-prime-fintech-portfolio)[Sector portfolio **Third Prime's AI portfolio** 10 startups · $85M](https://millionrounds.com/portfolio-maps/third-prime-ai-portfolio)[Co-investors **Who invests with Techstars** 991 co-investors](https://millionrounds.com/portfolio-maps/techstars-co-investors)[Co-investors **Who invests with SV Angel** 988 co-investors](https://millionrounds.com/portfolio-maps/sv-angel-co-investors)[Co-investors **Who invests with Andreessen Horowitz** 977 co-investors](https://millionrounds.com/portfolio-maps/andreessen-horowitz-co-investors) ## Raising from investors like Third Prime? Find the investors who back startups like yours, with their cheques, rounds and partners, in the app with filters, lists and exports. [Find investors](https://millionrounds.com/login?join=1&next=/app/investors)[Market maps](https://millionrounds.com/market-maps)