# Who Invests With Marc Andreessen: 33 Co-Investors (2026) > The 33 investors that have backed two or more of the same startups as Marc Andreessen, by kind: vc firms and angels and networks. Most often SV Angel. Source: https://millionrounds.com/portfolio-maps/marc-andreessen-co-investors (Millionrounds; every figure on the page links to its filing or article) ## VC firms 26 - [SV Angel](https://millionrounds.com/fund/sv-angel) - [*BH* Ben Horowitz](https://millionrounds.com/fund/ben-horowitz) - [Andreessen Horowitz](https://millionrounds.com/fund/andreessen-horowitz) - [Benchmark](https://millionrounds.com/fund/benchmark) - [Spark Capital](https://millionrounds.com/fund/spark-capital) - [Founders Fund](https://millionrounds.com/fund/founders-fund) - [Accel](https://millionrounds.com/fund/accel) - [Greylock](https://millionrounds.com/fund/greylock-partners) - [Index Ventures](https://millionrounds.com/fund/index-ventures) - [Chris Dixon](https://millionrounds.com/fund/chris-dixon) - [*KR* Kevin Rose](https://millionrounds.com/fund/kevin-rose) - [CrunchFund](https://millionrounds.com/fund/crunchfund-3) - [First Round Capital](https://millionrounds.com/fund/first-round-capital) - [Ooga Labs](https://millionrounds.com/fund/ooga-labs) - [Redpoint](https://millionrounds.com/fund/redpoint) - [Base Ventures](https://millionrounds.com/fund/base-ventures) - [IVP](https://millionrounds.com/fund/ivp) - [SVB Capital](https://millionrounds.com/fund/svb-capital) - [Kima Ventures](https://millionrounds.com/fund/kima-ventures) - [Social Capital](https://millionrounds.com/fund/social-capital) - [Kleiner Perkins Caufield & Byers](https://millionrounds.com/fund/kleiner-perkins-caufield-and-byers) - [Slow Ventures](https://millionrounds.com/fund/slow-ventures) - [*TS* The Social+Capital Partnership](https://millionrounds.com/fund/the-social-capital-partnership) - [Rick Marini](https://millionrounds.com/fund/rick-marini) +2 more ## Angels and networks 7 - [*RC* Ron Conway](https://millionrounds.com/fund/ron-conway) - [*PT* Peter Thiel](https://millionrounds.com/fund/peter-thiel) - [*JJ* Jeff Jordan](https://millionrounds.com/fund/jeff-jordan) - [*AD* Adam D'Angelo](https://millionrounds.com/fund/adam-d-angelo) - [*MK* Mitch Kapor](https://millionrounds.com/fund/mitch-kapor) - [*SA* Sam Altman](https://millionrounds.com/fund/sam-altman) - [*5G* 500 Global](https://millionrounds.com/fund/500-startups) ## Segment by segment ### VC firms 26 investors - [**SV Angel**](https://millionrounds.com/fund/sv-angel) VC firm United States 8 backed - [*BH* **Ben Horowitz**](https://millionrounds.com/fund/ben-horowitz) VC firm - 6 backed - [**Andreessen Horowitz**](https://millionrounds.com/fund/andreessen-horowitz) VC firm United States 5 backed - [**Benchmark**](https://millionrounds.com/fund/benchmark) VC firm United States 4 backed - [**Spark Capital**](https://millionrounds.com/fund/spark-capital) VC firm United States 3 backed - [**Founders Fund**](https://millionrounds.com/fund/founders-fund) VC firm United States 3 backed - [**Accel**](https://millionrounds.com/fund/accel) VC firm United States 3 backed - [**Greylock**](https://millionrounds.com/fund/greylock-partners) VC firm United States 3 backed ### Angels and networks 7 investors - [*RC* **Ron Conway**](https://millionrounds.com/fund/ron-conway) Angel investor - 5 backed - [*PT* **Peter Thiel**](https://millionrounds.com/fund/peter-thiel) Angel investor United States 3 backed - [*JJ* **Jeff Jordan**](https://millionrounds.com/fund/jeff-jordan) Angel investor - 3 backed - [*AD* **Adam D'Angelo**](https://millionrounds.com/fund/adam-d-angelo) Angel investor United States 2 backed - [*MK* **Mitch Kapor**](https://millionrounds.com/fund/mitch-kapor) Angel investor - 2 backed - [*SA* **Sam Altman**](https://millionrounds.com/fund/sam-altman) Angel investor United States 2 backed - [*5G* **500 Global**](https://millionrounds.com/fund/500-startups) Angel investor United States 2 backed **How this map is made.** Every investor here has backed two or more of the same startups as Marc Andreessen, in rounds we track. Grouped by kind, each ranked by how many startups it shares with Marc Andreessen. Rebuilt nightly; updated 15 November 2026. ## More portfolio maps [All portfolios](https://millionrounds.com/portfolio-maps) [Co-investors **Who invests with 500 Global** 996 co-investors](https://millionrounds.com/portfolio-maps/500-startups-co-investors)[Co-investors **Who invests with Paul Buchheit** 212 co-investors](https://millionrounds.com/portfolio-maps/paul-buchheit-co-investors)[Co-investors **Who invests with Alexis Ohanian** 194 co-investors](https://millionrounds.com/portfolio-maps/alexis-ohanian-co-investors)[Co-investors **Who invests with Fabrice Grinda** 177 co-investors](https://millionrounds.com/portfolio-maps/fabrice-grinda-co-investors)[Co-investors **Who invests with Sam Altman** 153 co-investors](https://millionrounds.com/portfolio-maps/sam-altman-co-investors)[Co-investors **Who invests with David Cohen** 124 co-investors](https://millionrounds.com/portfolio-maps/david-cohen-co-investors) ## Raising from investors like Marc Andreessen? 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