# Who Invests With RTW Investments LLC: 47 Co-Investors (2026) > The 47 investors that have backed two or more of the same startups as RTW Investments LLC, by kind: vc firms, private equity and asset managers and... Source: https://millionrounds.com/portfolio-maps/rtw-investments-lp-co-investors (Millionrounds; every figure on the page links to its filing or article) ## VC firms 28 - [Samsara BioCapital](https://millionrounds.com/fund/samsara-biocapital) - [TCG Crossover](https://millionrounds.com/fund/tcg-crossover) - [Wellington Management](https://millionrounds.com/fund/wellington-management) - [Redmile Group](https://millionrounds.com/fund/redmile-group) - [Fidelity](https://millionrounds.com/fund/fidelity) - [Qiming Venture Partners](https://millionrounds.com/fund/qiming-venture-partners) - [Novartis](https://millionrounds.com/fund/novartis) - [Novo Holdings](https://millionrounds.com/fund/novo-ventures) - [Versant Ventures](https://millionrounds.com/fund/versant-ventures) - [Venrock](https://millionrounds.com/fund/venrock) - [EQT Life Sciences](https://millionrounds.com/fund/eqt-life-sciences) - [Omega Funds](https://millionrounds.com/fund/omega-funds) - [5AM Ventures](https://millionrounds.com/fund/5am-ventures) - [ARCH Venture Partners](https://millionrounds.com/fund/arch-venture-partners) - [Casdin Capital](https://millionrounds.com/fund/casdin-capital) - [Sofinnova Partners](https://millionrounds.com/fund/sofinnova-partners) - [Frazier Life Sciences](https://millionrounds.com/fund/frazier-life-sciences) - [*MP* Matrix Partners China](https://millionrounds.com/fund/matrix-partners-china-2) - [Cormorant Capital](https://millionrounds.com/fund/cormorant-capital) - [Alexandria Real Estate Equities](https://millionrounds.com/fund/alexandria) - [*AV* Alexandria Venture Investments](https://millionrounds.com/fund/alexandria-venture-investments) - [Longwood Fund](https://millionrounds.com/fund/longwood-fund) - [Sanofi](https://millionrounds.com/fund/sanofi) - [Catalio Capital Management](https://millionrounds.com/fund/catalio-capital-management) +4 more ## Private equity and asset managers 16 - [RA Capital Management](https://millionrounds.com/fund/ra-capital-management) - [Janus Henderson Investors](https://millionrounds.com/fund/janus-henderson-investors) - [Perceptive Advisors](https://millionrounds.com/fund/perceptive-advisors) - [OrbiMed](https://millionrounds.com/fund/orbimed) - [Cormorant Asset Management](https://millionrounds.com/fund/cormorant-asset-management) - [TCG](https://millionrounds.com/fund/tcg) - [Vivo Capital](https://millionrounds.com/fund/vivo-capital) - [Blue Owl](https://millionrounds.com/fund/blue-owl) - [BlackRock](https://millionrounds.com/fund/blackrock) - [Foresite Capital](https://millionrounds.com/fund/forsite-capital) - [*BC* Bain Capital Life Sciences](https://millionrounds.com/fund/bain-capital-life-sciences) - [Invus](https://millionrounds.com/fund/invus) - [General Atlantic](https://millionrounds.com/fund/general-atlantic) - [Forbion Capital Partners](https://millionrounds.com/fund/forbion-capital-partners) - [Andera Partners](https://millionrounds.com/fund/andera-partners) - [Franklin Templeton](https://millionrounds.com/fund/franklin-templeton) ## Corporate investors 3 - [Eli Lilly](https://millionrounds.com/fund/eli-lilly) - [SR One](https://millionrounds.com/fund/sr-one) - [Google Ventures](https://millionrounds.com/fund/gv) ## Segment by segment ### VC firms 28 investors - [**Samsara BioCapital**](https://millionrounds.com/fund/samsara-biocapital) VC firm United States 8 backed - [**TCG Crossover**](https://millionrounds.com/fund/tcg-crossover) VC firm United States 8 backed - [**Wellington Management**](https://millionrounds.com/fund/wellington-management) VC firm United States 6 backed - [**Redmile Group**](https://millionrounds.com/fund/redmile-group) VC firm United States 5 backed - [**Fidelity**](https://millionrounds.com/fund/fidelity) VC firm United States 5 backed - [**Qiming Venture Partners**](https://millionrounds.com/fund/qiming-venture-partners) VC firm Hong Kong SAR China 5 backed - [**Novartis**](https://millionrounds.com/fund/novartis) VC firm Switzerland 4 backed - [**Novo Holdings**](https://millionrounds.com/fund/novo-ventures) VC firm Denmark 4 backed ### Private equity and asset managers 16 investors - [**RA Capital Management**](https://millionrounds.com/fund/ra-capital-management) Private equity United States 22 backed - [**Janus Henderson Investors**](https://millionrounds.com/fund/janus-henderson-investors) Private equity United Kingdom 21 backed - [**Perceptive Advisors**](https://millionrounds.com/fund/perceptive-advisors) Asset manager United States 15 backed - [**OrbiMed**](https://millionrounds.com/fund/orbimed) Private equity United States 13 backed - [**Cormorant Asset Management**](https://millionrounds.com/fund/cormorant-asset-management) Private equity United States 13 backed - [**TCG**](https://millionrounds.com/fund/tcg) Private equity United States 7 backed - [**Vivo Capital**](https://millionrounds.com/fund/vivo-capital) Private equity United States 7 backed - [**Blue Owl**](https://millionrounds.com/fund/blue-owl) Asset manager United States 6 backed ### Corporate investors 3 investors - [**Eli Lilly**](https://millionrounds.com/fund/eli-lilly) Corporate investor United States 3 backed - [**SR One**](https://millionrounds.com/fund/sr-one) Corporate investor United States 2 backed - [**Google Ventures**](https://millionrounds.com/fund/gv) Corporate investor United States 2 backed **How this map is made.** Every investor here has backed two or more of the same startups as RTW Investments LLC, in rounds we track. Grouped by kind, each ranked by how many startups it shares with RTW Investments LLC. Rebuilt nightly; updated 15 November 2026. ## More portfolio maps [All portfolios](https://millionrounds.com/portfolio-maps) [Portfolio map **RTW Investments LLC portfolio map** 69 startups · $14B](https://millionrounds.com/portfolio-maps/rtw-investments-lp-portfolio-map)[Sector portfolio **RTW Investments LLC's Biotech portfolio** 52 startups · $11B](https://millionrounds.com/portfolio-maps/rtw-investments-lp-biotech-portfolio)[Sector portfolio **RTW Investments LLC's Pharma portfolio** 13 startups · $3.2B](https://millionrounds.com/portfolio-maps/rtw-investments-lp-pharma-portfolio)[Co-investors **Who invests with Citibank** 247 co-investors](https://millionrounds.com/portfolio-maps/citi-co-investors)[Co-investors **Who invests with Bond** 101 co-investors](https://millionrounds.com/portfolio-maps/bond-co-investors)[Co-investors **Who invests with S2G Investments** 42 co-investors](https://millionrounds.com/portfolio-maps/s2g-investments-co-investors) ## Raising from investors like RTW Investments LLC? 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)