Polaris Partners — 2025 Investments
6 investments dated 2025 · listed companies and verified rows first · show all
BiotechNewton, US
Katharine Yen(Executive Officer, Director)Kate Yen(Founder)inChristopher Guiffre(Executive Officer)
BoardAlon Lazarus(Director)Anna French(Director)
Board seatAlexandra Cantley· per SEC Form D · $42.3M raise · filed Dec 2025
Co-investorsDCVC (Data Collective)
Cambridge, US
Ying Kai Chan(Executive Officer, Director, Promoter)Andrew Dick(Director, Promoter)
BoardKhoo Shih(Director)
Board seatAlexandra Cantley· per SEC Form D · $15.7M raise · filed Aug 2025
Crossbow Therapeutics develops TCR-mimetic antibody therapies designed to target cancer antigens by mimicking T-cell receptors, with a focus on treating solid tumors and hematologic malignancies.
AI & Machine LearningBiotechMedical DevicesCambridge, US
Alexander Nolte(Executive Officer)inDmitri Wiederschain(Executive Officer)in
BoardSakae Asanuma(Director)inBriggs Morrison(Executive Officer, Director, Promoter)inIrena Melnikova(Director)in
Board seatAlexandra Cantley· per SEC Form D · $80M raise · filed Sep 2025
Co-investorsMPM BioImpactPfizer Venture InvestmentsPfizer VenturesTaiho Ventures, LLC
Nomad Health operates a self-service digital marketplace connecting clinicians—including doctors, nurses, and allied health professionals—with healthcare facilities for staffing and travel assignments without traditional recruiters.
B2B MarketplacesDigital HealthHealthtechHR TechMarketplacesNew York, US
Alexander Nazem(Director)inMaxwell Laurans(Director)Alexi Nazem(Co-Founder & Board Member)Justin Lambert(CEO)William Eager(Vice President of Engineering)Alexander Pease(Vice President of Product)
Board seatBrian Chee· per SEC Form D
Co-investorsAlleyCorpIcon Ventures.406 VenturesAdams Street PartnersFirst Round CapitalHealthQuest Capital+1 more
QurAlis develops precision therapies for amyotrophic lateral sclerosis (ALS) and related neurodegenerative diseases by targeting specific disease-causing genetic drivers and molecular mechanisms.
BiotechDeep TechMedical DevicesCambridge, US
Kevin Eggan(Co-founder)Roet(Co-founder)Woolf(Co-founder)Kasper Roet(Director, Executive Officer, Promoter)Shafique Virani(Executive Officer)Jason Brown(Mr. Brown is the Chief Financial Officer of the Issuer.)
Board seatAmy Schulman· per SEC Form D · $24.9M raise · filed Sep 2025
Co-investorsDroia VenturesMC Healthcare VenturesMission BiocapitalMitsui Global InvestmentSanofi VenturesSV Health Investors+2 more
Minneapolis, US
Sara Taylor(Executive Officer)Mike Christy(Executive Officer)Gregory Johnson(Executive Officer)Ken Ehlert(Executive Officer, Director)Mark Briesacher(Executive Officer)Mark Pollmann(Executive Officer)
Board seatAmy Schulman· per SEC Form D · $1.5M raise · filed Nov 2025
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.