# Pfizer's Biotech Investments: 45 Startups in Its Portfolio (2026) > The 45 Biotech startups Pfizer has backed, by stage: $5.4B raised between them. From the rounds we track; updated nightly. Source: https://millionrounds.com/portfolio-maps/pfizer-biotech-portfolio (Millionrounds; every figure on the page links to its filing or article) ## Series A 14 - [Morphic Therapeutic](https://millionrounds.com/company/morphic-therapeutic) - [Rhythm Pharmaceuticals](https://millionrounds.com/company/rhythm-pharmaceuticals) - [Vivet Therapeutics](https://millionrounds.com/company/vivet-therapeutics) - [*TT* Tripley Therapeutics](https://millionrounds.com/company/tripley-therapeutics) - [*P* Palleon](https://millionrounds.com/company/palleon) - [*A* Arkuda](https://millionrounds.com/company/arkuda) - [*V* Vtesse](https://millionrounds.com/company/vtesse) - [*S* Strata](https://millionrounds.com/company/strata) - [*MN* Magnolia Neuroscience](https://millionrounds.com/company/magnolia-neuroscience) - [Quartet Medicine](https://millionrounds.com/company/quartet-medicine) - [*B* Biodesy](https://millionrounds.com/company/biodesy) - [*I* ImmunOS](https://millionrounds.com/company/immunos) - [*A* AnTolRx](https://millionrounds.com/company/antolrx) - [EyeCyte](https://millionrounds.com/company/eyecyte) ## Stage not reported 10 - [Celladon](https://millionrounds.com/company/celladon) - [MISSION Therapeutics](https://millionrounds.com/company/mission-therapeutics) - [Gliknik](https://millionrounds.com/company/gliknik) - [*C* Cydan](https://millionrounds.com/company/cydan) - [NeuMoDx Molecular](https://millionrounds.com/company/neumodx-molecular) - [Coley Pharmaceutical Group](https://millionrounds.com/company/coley-pharmaceutical-group) - [Autifony Therapeutics](https://millionrounds.com/company/autifony-therapeutics) - [Nodality](https://millionrounds.com/company/nodality) - [*A* Aquinnah](https://millionrounds.com/company/aquinnah) - [*A* Amra](https://millionrounds.com/company/amra) ## Series B 9 - [SpringWorks Therapeutics](https://millionrounds.com/company/springworks-therapeutics) - [*CT* Capstan Therapeutics](https://millionrounds.com/company/capstan-therapeutics) - [Arrakis Therapeutics](https://millionrounds.com/company/arrakis-therapeutics) - [ImCheck Therapeutics](https://millionrounds.com/company/imcheck-therapeutics) - [Therachon](https://millionrounds.com/company/therachon) - [*4M* 4D Molecular](https://millionrounds.com/company/4d-molecular) - [Cortexyme](https://millionrounds.com/company/cortexyme) - [Nimbus Therapeutics](https://millionrounds.com/company/nimbus-therapeutics) - [COUR Pharma](https://millionrounds.com/company/cour-pharma) ## Series C and later 7 - [Kymera Therapeutics](https://millionrounds.com/company/kymera-therapeutics) - [STORM Therapeutics](https://millionrounds.com/company/storm-therapeutics) - [Circle Pharma](https://millionrounds.com/company/circle-pharma) - [Mersana Therapeutics](https://millionrounds.com/company/mersana-therapeutics) - [Neuronetics](https://millionrounds.com/company/neuronetics) - [*R* RefleXion](https://millionrounds.com/company/reflexion) - [*H* HandyLab](https://millionrounds.com/company/handylab) ## Growth 3 - [CellCentric](https://millionrounds.com/company/cellcentric) - [Epic Sciences](https://millionrounds.com/company/epic-sciences) - [*FP* Five Prime Therapeutics](https://millionrounds.com/company/five-prime-therapeutics) ## Pre-seed and seed 2 - [*R* Rhythm](https://millionrounds.com/company/rhythm) - [*MS* Molecular Stethoscope](https://millionrounds.com/company/molecular-stethoscope) ## Segment by segment ### Series A 14 startups · $1.0B raised - [**Morphic Therapeutic**](https://millionrounds.com/company/morphic-therapeutic) Morphic Therapeutic is a biotechnology company that develops oral integrin therapies to treat serious chronic diseases. United States $328M - [**Rhythm Pharmaceuticals**](https://millionrounds.com/company/rhythm-pharmaceuticals) Rhythm is a biopharmaceutical company focused on developing and commercializing peptide therapeutics United States $311M - [**Vivet Therapeutics**](https://millionrounds.com/company/vivet-therapeutics) Vivet Therapeutics is a biotechnology company developing gene therapy treatments for orphan diseases. France $96M - [*TT* **Tripley Therapeutics**](https://millionrounds.com/company/tripley-therapeutics) United States $59M - [*P* **Palleon**](https://millionrounds.com/company/palleon) United States $48M - [*A* **Arkuda**](https://millionrounds.com/company/arkuda) United States $44M - [*V* **Vtesse**](https://millionrounds.com/company/vtesse) United States $42M - [*S* **Strata**](https://millionrounds.com/company/strata) United States $32M ### Stage not reported 10 startups · $582M raised - [**Celladon**](https://millionrounds.com/company/celladon) Celladon is a biotechnology company developing molecular therapies for the treatment of heart failure. United States $172M - [**MISSION Therapeutics**](https://millionrounds.com/company/mission-therapeutics) Mission Therapeutics is a clinical-stage biopharmaceutical company based in Cambridge, UK, focused on drug discovery and developme United Kingdom $113M - [**Gliknik**](https://millionrounds.com/company/gliknik) Gliknik develops therapies for patients with cancer and immune disorders. United States $78M - [*C* **Cydan**](https://millionrounds.com/company/cydan) United States $60M - [**NeuMoDx Molecular**](https://millionrounds.com/company/neumodx-molecular) NeuMoDx Molecular, Inc. United States $41M - [**Coley Pharmaceutical Group**](https://millionrounds.com/company/coley-pharmaceutical-group) Coley Pharmaceutical Group develops therapeutics and drug candidates to fight cancers, asthma, allergy and autoimmune disorders. United States $40M - [**Autifony Therapeutics**](https://millionrounds.com/company/autifony-therapeutics) Autifony Therapeutics is a clinical-stage biotechnology company founded in 2011 as a spinout from GSK. United Kingdom $32M - [**Nodality**](https://millionrounds.com/company/nodality) Nodality develops biologically-informed clinical treatments for patients with cancer and autoimmune diseases. United States $27M ### Series B 9 startups · $1.2B raised - [**SpringWorks Therapeutics**](https://millionrounds.com/company/springworks-therapeutics) SpringWorks Therapeutics is a biopharmaceutical company that develops medicines for patients with severe rare diseases and cancer. United States $400M - [*CT* **Capstan Therapeutics**](https://millionrounds.com/company/capstan-therapeutics) Capstan Therapeutics is advancing cell engineering to develop therapeutics for a broad range of diseases. United States $175M - [**Arrakis Therapeutics**](https://millionrounds.com/company/arrakis-therapeutics) Arrakis Therapeutics is a biopharmaceutical developing drugs for neurological disorders and other diseases. United States $113M - [**ImCheck Therapeutics**](https://millionrounds.com/company/imcheck-therapeutics) ImCheck Therapeutics is a developing novel therapeutics that target members of the butyrophilin (BTN) super-family of checkpoint molecules. France $97M - [**Therachon**](https://millionrounds.com/company/therachon) Therachon is a global biotechnology company focused on developing medicines for rare, genetic diseases France $95M - [*4M* **4D Molecular**](https://millionrounds.com/company/4d-molecular) United States $90M - [**Cortexyme**](https://millionrounds.com/company/cortexyme) Cortexyme is developing treatments for Alzheimer's and other degenerative disorders. United States $77M - [**Nimbus Therapeutics**](https://millionrounds.com/company/nimbus-therapeutics) Nimbus Therapeutics is a clinical-stage biotechnology company based in Boston, Massachusetts, founded in 2009. United States $72M ### Series C and later 7 startups · $1.7B raised - [**Kymera Therapeutics**](https://millionrounds.com/company/kymera-therapeutics) Kymera Therapeutics is a biotechnology company that specializes in the field of targeted protein degradation. United States $799M - [**STORM Therapeutics**](https://millionrounds.com/company/storm-therapeutics) Targeting pathways that modify RNA to deliver novel cancer therapeutics United Kingdom $317M - [**Circle Pharma**](https://millionrounds.com/company/circle-pharma) Circle Pharma is a provider of a macrocycle development platform intended to provide macrocyclic peptides. United States $187M - [**Mersana Therapeutics**](https://millionrounds.com/company/mersana-therapeutics) Mersana Therapeutics develops a biodegradable polymer platform Fleximer® which creates new and better medicines. United States $148M - [**Neuronetics**](https://millionrounds.com/company/neuronetics) Neuronetics is a medical device company that develops non-invasive therapies for psychiatric and neurological disorders. United States $110M - [*R* **RefleXion**](https://millionrounds.com/company/reflexion) Reflexion offers holistic fitness through Pilates and Gyrotonic exercise. United States $100M - [*H* **HandyLab**](https://millionrounds.com/company/handylab) HandyLab is a business that provides the world with research into medical technology. United States $24M ### Growth 3 startups · $836M raised - [**CellCentric**](https://millionrounds.com/company/cellcentric) CellCentric is a clinical-stage biopharmaceutical company based in Cambridge, UK. United Kingdom $525M - [**Epic Sciences**](https://millionrounds.com/company/epic-sciences) Epic Sciences is a diagnostics company improving cancer management by providing real-time biopsy material to guide personalized medicine. United States $165M - [*FP* **Five Prime Therapeutics**](https://millionrounds.com/company/five-prime-therapeutics) FivePrime is a clinical-stage biotechnology company that develops treatments for cancers. United States $146M ### Pre-seed and seed 2 startups · $50M raised - [*R* **Rhythm**](https://millionrounds.com/company/rhythm) United States $42M - [*MS* **Molecular Stethoscope**](https://millionrounds.com/company/molecular-stethoscope) United States $8.2M **How this map is made.** Every startup here works in Biotech and has raised money in a round we track that names Pfizer as an investor. Each sits under the stage of its latest round. Rebuilt nightly; updated 15 November 2026. ## More portfolio maps [All portfolios](https://millionrounds.com/portfolio-maps) [Co-investors **Who invests with Pfizer** 43 co-investors](https://millionrounds.com/portfolio-maps/pfizer-co-investors)[Sector portfolio **Coinbase Ventures' Web3 & Crypto portfolio** 168 startups · $5.7B](https://millionrounds.com/portfolio-maps/coinbase-web3-crypto-portfolio)[Sector portfolio **Salesforce Ventures' AI portfolio** 115 startups · $181B](https://millionrounds.com/portfolio-maps/salesforce-ventures-ai-portfolio)[Sector portfolio **Google Ventures' AI portfolio** 81 startups · $16B](https://millionrounds.com/portfolio-maps/gv-ai-portfolio)[Sector portfolio **Google Ventures' Biotech portfolio** 74 startups · $12B](https://millionrounds.com/portfolio-maps/gv-biotech-portfolio)[Sector portfolio **Samsung Next's AI portfolio** 72 startups · $9.8B](https://millionrounds.com/portfolio-maps/samsung-next-ai-portfolio) ## Raising from investors like Pfizer? 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