# Polaris Partners' Biotech Investments: 75 Startups in Its Portfolio (2026) > The 75 Biotech startups Polaris Partners has backed, by stage: $9.1B raised between them. From the rounds we track; updated nightly. Source: https://millionrounds.com/portfolio-maps/polaris-partners-biotech-portfolio (Millionrounds; every figure on the page links to its filing or article) ## Series C and later 23 - [*E* eGenesis](https://millionrounds.com/company/egenesis) - [Ajax Health](https://millionrounds.com/company/ajax-health) - [Alector](https://millionrounds.com/company/alector) - [aTyr Pharma](https://millionrounds.com/company/atyr-pharma) - [Triveni Bio](https://millionrounds.com/company/triveni-bio) - [Metacrine](https://millionrounds.com/company/metacrine) - [*O* OM1](https://millionrounds.com/company/om1) - [KSQ Therapeutics](https://millionrounds.com/company/ksq-therapeutics) - [Lyndra Therapeutics](https://millionrounds.com/company/lyndra-therapeutics) - [Suneva Medical](https://millionrounds.com/company/suneva-medical) - [Hummingbird Bioscience](https://millionrounds.com/company/hummingbird-bioscience) - [*SB* SQZ Biotechnologies](https://millionrounds.com/company/sqz-biotechnologies) - [Akili Interactive Labs](https://millionrounds.com/company/akili-interactive-labs) - [Visterra](https://millionrounds.com/company/visterra) - [Neuronetics](https://millionrounds.com/company/neuronetics) - [Jnana Therapeutics](https://millionrounds.com/company/jnana-therapeutics) - [Quartet](https://millionrounds.com/company/quartet) - [Hydra Biosciences](https://millionrounds.com/company/hydra-biosciences) - [Faraday Pharmaceuticals](https://millionrounds.com/company/faraday-pharmaceuticals) - [Arsanis](https://millionrounds.com/company/arsanis) - [*SS* Seventh Sense Biosystems](https://millionrounds.com/company/seventh-sense-biosystems) - [Adimab](https://millionrounds.com/company/adimab) - [Momenta Pharmaceuticals](https://millionrounds.com/company/momenta-pharmaceuticals) ## Series B 20 - [Gossamer Bio](https://millionrounds.com/company/gossamer-bio) - [Editas Medicine](https://millionrounds.com/company/editas-medicine) - [Cardurion Pharmaceuticals](https://millionrounds.com/company/cardurion-pharmaceuticals) - [*CT* Capstan Therapeutics](https://millionrounds.com/company/capstan-therapeutics) - [FIRE1](https://millionrounds.com/company/fire1) - [Cardiac Dimensions](https://millionrounds.com/company/cardiac-dimensions) - [Noema Pharma](https://millionrounds.com/company/noema-pharma) - [US HealthVest](https://millionrounds.com/company/us-healthvest) - [Syros Pharmaceuticals](https://millionrounds.com/company/syros-pharmaceuticals) - [EpiBiologics](https://millionrounds.com/company/epibiologics) - [Pandion](https://millionrounds.com/company/pandion) - [Kallyope](https://millionrounds.com/company/kallyope) - [QurAlis](https://millionrounds.com/company/quralis) - [BlackThorn Therapeutics](https://millionrounds.com/company/blackthorn-therapeutics) - [August Bioservices](https://millionrounds.com/company/august-bioservices) - [Primmune Therapeutics](https://millionrounds.com/company/primmune-therapeutics) - [Seismic Therapeutic](https://millionrounds.com/company/seismic-therapeutic) - [SQZ Biotech](https://millionrounds.com/company/sqz-biotech) - [*S* Sofregen](https://millionrounds.com/company/sofregen) - [Vico Therapeutics](https://millionrounds.com/company/vico-therapeutics) ## Stage not reported 15 - [Freenome](https://millionrounds.com/company/freenome) - [Vets First Choice](https://millionrounds.com/company/vets-first-choice) - [Leyden Labs](https://millionrounds.com/company/leyden-labs) - [Tectonic Therapeutic](https://millionrounds.com/company/tectonic-therapeutic) - [BIND Therapeutics](https://millionrounds.com/company/bind-therapeutics) - [Invivyd](https://millionrounds.com/company/invivyd) - [Arsenal Medical](https://millionrounds.com/company/arsenal-medical) - [*4B* 480 Biomedical](https://millionrounds.com/company/480-biomedical) - [Avila Therapeutics](https://millionrounds.com/company/avila-therapeutics) - [Sunbird Bio](https://millionrounds.com/company/sunbird-bio) - [Novaerus](https://millionrounds.com/company/novaerus) - [Cyclerion Therapeutics](https://millionrounds.com/company/cyclerion-therapeutics) - [Neumora Therapeutics](https://millionrounds.com/company/neumora-therapeutics) - [Amagma Therapeutics](https://millionrounds.com/company/amagma-therapeutics) - [Montis Biosciences](https://millionrounds.com/company/montis-biosciences) ## Series A 12 - [Morphic Therapeutic](https://millionrounds.com/company/morphic-therapeutic) - [Tome Biosciences](https://millionrounds.com/company/tome-biosciences) - [Kronos Bio](https://millionrounds.com/company/kronos-bio) - [Paratus Sciences](https://millionrounds.com/company/paratus-sciences) - [IconOVir Bio](https://millionrounds.com/company/iconovir-bio) - [Quentis Therapeutics](https://millionrounds.com/company/quentis-therapeutics) - [Larkspur Biosciences](https://millionrounds.com/company/larkspur-biosciences) - [Volastra Therapeutics](https://millionrounds.com/company/volastra-therapeutics) - [Navitor Pharmaceuticals](https://millionrounds.com/company/navitor-pharmaceuticals) - [Tavo Biotherapeutics](https://millionrounds.com/company/tavo-biotherapeutics) - [Data Sciences International](https://millionrounds.com/company/data-sciences-international) - [Sofregen Medical](https://millionrounds.com/company/sofregen-medical) ## Growth 3 - [GI Dynamics](https://millionrounds.com/company/gi-dynamics) - [Cerulean Pharma](https://millionrounds.com/company/cerulean-pharma) - [TARIS Biomedical](https://millionrounds.com/company/taris-biomedical) ## Pre-seed and seed 2 - [Indomo](https://millionrounds.com/company/indomo) - [Cirrus Therapeutics](https://millionrounds.com/company/cirrus-therapeutics) ## Segment by segment ### Series C and later 23 startups · $3.3B raised - [*E* **eGenesis**](https://millionrounds.com/company/egenesis) United States $329M - [**Ajax Health**](https://millionrounds.com/company/ajax-health) Ajax Health accelerates medical innovation through capital and capabilities. United States $320M - [**Alector**](https://millionrounds.com/company/alector) Alector is a biopharmaceutical company that develops therapies for the treatment of neurodegeneration diseases. United States $215M - [**aTyr Pharma**](https://millionrounds.com/company/atyr-pharma) aTyr Pharma (Nasdaq: LIFE) is a biotherapeutics company engaged in the discovery and development of innovative medicines based on United States $181M - [**Triveni Bio**](https://millionrounds.com/company/triveni-bio) Triveni Bio is a clinical-stage biotechnology company based in Watertown, Massachusetts, founded in 2019 through the merger of Ama United States $180M - [**Metacrine**](https://millionrounds.com/company/metacrine) Metacrine is a clinical-stage bio pharmaceutical company focused on building an innovative pipeline of best-in-class drugs. United States $173M - [*O* **OM1**](https://millionrounds.com/company/om1) United States $171M - [**KSQ Therapeutics**](https://millionrounds.com/company/ksq-therapeutics) KSQ Therapeutics is using CRISPR technology within a powerful drug discovery engine to enable high-confidence drug development. United States $156M ### Series B 20 startups · $2.7B raised - [**Gossamer Bio**](https://millionrounds.com/company/gossamer-bio) Gossamer Bio is a biopharmaceutical company focused on the discovery and development of novel and differentiated therapeutic products. United States $567M - [**Editas Medicine**](https://millionrounds.com/company/editas-medicine) Editas Medicine is a clinical-stage genome editing company that develops genomic medicines for serious diseases. United States $335M - [**Cardurion Pharmaceuticals**](https://millionrounds.com/company/cardurion-pharmaceuticals) Cardurion Pharmaceuticals is a clinical-stage biotechnology company founded in 2017, focused on developing innovative therapeutics United States $260M - [*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 - [**FIRE1**](https://millionrounds.com/company/fire1) FIRE1, officially known as The Foundry Innovation and Research 1, Ltd., is a connected medical device company based in Dublin, Ireland. Ireland $170M - [**Cardiac Dimensions**](https://millionrounds.com/company/cardiac-dimensions) Cardiac Dimensions is a medical device company based in Kirkland, Washington, founded in 2001. United States $150M - [**Noema Pharma**](https://millionrounds.com/company/noema-pharma) Noema Pharma is a clinical-stage biotechnology company based in Basel, Switzerland, founded in 2019 by George Garibaldi and Luigi Costa. Switzerland $147M - [**US HealthVest**](https://millionrounds.com/company/us-healthvest) US HealthVest is a behavioral healthcare firm that helps the development of psychiatric hospitals. United States $141M ### Stage not reported 15 startups · $1.6B raised - [**Freenome**](https://millionrounds.com/company/freenome) Freenome is a biotechnology company with a comprehensive multiomics platform for cancer detection using a routine blood draw. United States $553M - [**Vets First Choice**](https://millionrounds.com/company/vets-first-choice) Vets First Choice provides veterinary practices with an online pharmacy and home delivery services. United States $227M - [**Leyden Labs**](https://millionrounds.com/company/leyden-labs) Leyden Labs, founded in June 2020 in Leiden, Netherlands, is a biotechnology company focused on developing innovative solutions fo Netherlands $221M - [**Tectonic Therapeutic**](https://millionrounds.com/company/tectonic-therapeutic) Tectonic Therapeutic is a biotechnology company which focuses on scientific research in biochemistry and molecular pharmacology. United States $185M - [**BIND Therapeutics**](https://millionrounds.com/company/bind-therapeutics) BIND Therapeutics is a biotechnology company incorporated in 2006; Pfizer acquired substantially all of its assets in 2016. United States $138M - [**Invivyd**](https://millionrounds.com/company/invivyd) Invivyd develops antibodies to transcend the limitations of the human immune system and fight against viral infections. United States $125M - [**Arsenal Medical**](https://millionrounds.com/company/arsenal-medical) Arsenal Medical develops novel products that improve local therapy for injuries and diseases. United States $60M - [*4B* **480 Biomedical**](https://millionrounds.com/company/480-biomedical) 480 Biomedical focuses on the development of a bioresorbable scaffold for treating occlusive disease in the superficial femoral artery. United States $56M ### Series A 12 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 - [**Tome Biosciences**](https://millionrounds.com/company/tome-biosciences) Tome Biosciences is a biotechnology company based in Watertown, MA, focused on advancing programmable genomic integration (PGI) to United States $213M - [**Kronos Bio**](https://millionrounds.com/company/kronos-bio) Kronos Bio focuses on the research and development of first-in-class therapies that modulate historically recalcitrant cancer. United States $123M - [**Paratus Sciences**](https://millionrounds.com/company/paratus-sciences) Paratus Sciences is a biotechnology startup founded in 2021, based in New York, NY, with a subsidiary in Singapore. United States $100M - [**IconOVir Bio**](https://millionrounds.com/company/iconovir-bio) IconOVir Bio is a biotechnology company based in San Diego, California, founded in 2018. United States $77M - [**Quentis Therapeutics**](https://millionrounds.com/company/quentis-therapeutics) Quentis Therapeutics is a developer of immuno-therapeutics designed to address ER stress in multiple diseases. United States $49M - [**Larkspur Biosciences**](https://millionrounds.com/company/larkspur-biosciences) Larkspur Biosciences is a biotechnology company based in Cambridge and Watertown, founded in 2020. United States $36M - [**Volastra Therapeutics**](https://millionrounds.com/company/volastra-therapeutics) Volastra Therapeutics is a biotechnology company developing novel therapies for the treatment of metastatic cancers. United States $30M ### Growth 3 startups · $392M raised - [**GI Dynamics**](https://millionrounds.com/company/gi-dynamics) GI Dynamics is a medical device company developing therapies for the treatment of type 2 diabetes and related metabolic diseases. United States $156M - [**Cerulean Pharma**](https://millionrounds.com/company/cerulean-pharma) Cerulean Pharma develops nanotechnology-based therapeutics for treating oncology, cardiovascular, autoimmune and inflammatory diseases. United States $152M - [**TARIS Biomedical**](https://millionrounds.com/company/taris-biomedical) TARIS Biomedical is a pharmaceutical company developing therapies for genitourinary system issues. United States $84M ### Pre-seed and seed 2 startups · $36M raised - [**Indomo**](https://millionrounds.com/company/indomo) Indomo is a clinical-stage therapeutics company based in San Francisco, California, focused on developing innovative treatments fo United States $25M - [**Cirrus Therapeutics**](https://millionrounds.com/company/cirrus-therapeutics) Cirrus Therapeutics is a Biotechnology Research firm diganosing and treating eye diseases affecting ocular immune system. United States $11M **How this map is made.** Every startup here works in Biotech and has raised money in a round we track that names Polaris Partners 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) [Sector portfolio **Polaris Partners' Healthtech portfolio** 18 startups · $894M](https://millionrounds.com/portfolio-maps/polaris-partners-healthtech-portfolio)[Co-investors **Who invests with Polaris Partners** 168 co-investors](https://millionrounds.com/portfolio-maps/polaris-partners-co-investors)[Portfolio map **Polaris Partners portfolio map** 159 startups · $16B](https://millionrounds.com/portfolio-maps/polaris-partners-portfolio-map)[Sector portfolio **Techstars' AI portfolio** 336 startups · $4.9B](https://millionrounds.com/portfolio-maps/techstars-ai-portfolio)[Sector portfolio **Alumni Ventures' AI portfolio** 302 startups · $36B](https://millionrounds.com/portfolio-maps/us-strategic-tech-fund-an-alumni-ventures-fund-ai-portfolio)[Sector portfolio **Andreessen Horowitz's AI portfolio** 259 startups · $426B](https://millionrounds.com/portfolio-maps/andreessen-horowitz-ai-portfolio) ## Raising from investors like Polaris Partners? 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