# Who Invests With Third Sphere: 29 Co-Investors (2026) > The 29 investors that have backed two or more of the same startups as Third Sphere, by kind: vc firms and accelerators. Most often urban.us. Source: https://millionrounds.com/portfolio-maps/third-sphere-co-investors (Millionrounds; every figure on the page links to its filing or article) ## VC firms 24 - [urban.us](https://millionrounds.com/fund/urban-us) - [Techstars](https://millionrounds.com/fund/techstars) - [Khosla Ventures](https://millionrounds.com/fund/khosla-ventures) - [Elemental Impact](https://millionrounds.com/fund/elemental-impact) - [LocalGlobe](https://millionrounds.com/fund/localglobe) - [BoxGroup](https://millionrounds.com/fund/boxgroup) - [Revolution](https://millionrounds.com/fund/revolution) - [Everywhere Ventures](https://millionrounds.com/fund/everywhere-ventures) - [Correlation Ventures](https://millionrounds.com/fund/correlation-ventures) - [Seedinvest](https://millionrounds.com/fund/seedinvest-2) - [New York Ventures](https://millionrounds.com/fund/new-york-ventures) - [Headline](https://millionrounds.com/fund/headline) - [Infinity Ventures](https://millionrounds.com/fund/infinity-ventures) - [Magic Fund](https://millionrounds.com/fund/magic-fund) - [Founder Collective](https://millionrounds.com/fund/founder-collective) - [MetaProp Ventures](https://millionrounds.com/fund/metaprop-ventures) - [Tribeca Venture Partners](https://millionrounds.com/fund/tribeca-venture-partners) - [Collaborative Fund](https://millionrounds.com/fund/collaborative-fund) - [Kima Ventures](https://millionrounds.com/fund/kima-ventures) - [Right Side Capital Management](https://millionrounds.com/fund/right-side-capital-management) - [Clocktower Ventures](https://millionrounds.com/fund/clocktower-ventures) - [Congruent Ventures](https://millionrounds.com/fund/congruent-ventures) - [SOSV](https://millionrounds.com/fund/sosv) - [Lowercarbon Capital](https://millionrounds.com/fund/lowercarbon-capital) ## Accelerators 5 - [Y Combinator](https://millionrounds.com/fund/y-combinator) - [Plug and Play](https://millionrounds.com/fund/plug-and-play) - [Creative Destruction Lab](https://millionrounds.com/fund/creative-destruction-lab) - [Berkeley SkyDeck](https://millionrounds.com/fund/berkeley-skydeck) - [HAX](https://millionrounds.com/fund/hax) ## Segment by segment ### VC firms 24 investors - [**urban.us**](https://millionrounds.com/fund/urban-us) VC firm United States 5 backed - [**Techstars**](https://millionrounds.com/fund/techstars) VC firm United States 5 backed - [**Khosla Ventures**](https://millionrounds.com/fund/khosla-ventures) VC firm United States 4 backed - [**Elemental Impact**](https://millionrounds.com/fund/elemental-impact) VC firm United States 4 backed - [**LocalGlobe**](https://millionrounds.com/fund/localglobe) VC firm United Kingdom 3 backed - [**BoxGroup**](https://millionrounds.com/fund/boxgroup) VC firm United States 3 backed - [**Revolution**](https://millionrounds.com/fund/revolution) VC firm United States 3 backed - [**Everywhere Ventures**](https://millionrounds.com/fund/everywhere-ventures) VC firm United States 2 backed ### Accelerators 5 investors - [**Y Combinator**](https://millionrounds.com/fund/y-combinator) Accelerator United States 5 backed - [**Plug and Play**](https://millionrounds.com/fund/plug-and-play) Accelerator United States 2 backed - [**Creative Destruction Lab**](https://millionrounds.com/fund/creative-destruction-lab) Accelerator Canada 2 backed - [**Berkeley SkyDeck**](https://millionrounds.com/fund/berkeley-skydeck) Accelerator United States 2 backed - [**HAX**](https://millionrounds.com/fund/hax) Accelerator United States 2 backed **How this map is made.** Every investor here has backed two or more of the same startups as Third Sphere, in rounds we track. Grouped by kind, each ranked by how many startups it shares with Third Sphere. Rebuilt nightly; updated 15 November 2026. ## More portfolio maps [All portfolios](https://millionrounds.com/portfolio-maps) [Portfolio map **Third Sphere portfolio map** 32 startups ยท $471M](https://millionrounds.com/portfolio-maps/third-sphere-portfolio-map)[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)[Co-investors **Who invests with Alumni Ventures** 911 co-investors](https://millionrounds.com/portfolio-maps/us-strategic-tech-fund-an-alumni-ventures-fund-co-investors)[Co-investors **Who invests with Sequoia Capital** 827 co-investors](https://millionrounds.com/portfolio-maps/sequoia-capital-co-investors) ## Raising from investors like Third Sphere? 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)