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RA Capital Management — Portfolio, Page 5

Investor actively backing innovative startups and growth-stage companies across various industries and funding rounds.

467
Companies
$56.7B
Total invested
$123.5M
Avg. check
15
Industries
Biotechnology 21Health Care 12Therapeutics 12Pharmaceutical 9Medical 8Biopharma 7+9 more
Founder contacts

Verified emails & LinkedIn for founders across this portfolio.

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Portfolio companies

Showing 97–120 of 467
Nautilus Biotechnology
January 2026

Nautilus Biotechnology is a life sciences company that develops a platform for analyzing and quantifying the human proteome.

Biotechnology · San Carlos$1.6M Grant
BioAge Labs
January 2026

BioAge Labs is a clinical-stage biotechnology company that develops therapeutics to treat obesity and metabolic diseases.

Biopharma · Richmond$115.0M Post-IPO Equity
Kinaset Therapeutics
January 2026

Kinaset Therapeutics is a biopharma company that focuses on advancement of novel drugs in areas of unmet medical needs.

Health Care · Boston$103.0M Series B
Diagonal Therapeutics
January 2026

Diagonal Therapeutics is a biotechnology startup that develops targeted therapies for cancer and genetic diseases.

Biopharma · Watertown$125.0M Series B
Century Therapeutics
January 2026

Century Therapeutics is a biotechnology company that develops cell therapies for hematological and solid tumor malignancies.

Biotechnology · Philadelphia$135.0M Post-IPO Equity
Phathom Pharmaceuticals
January 2026

Phathom Pharmaceuticals is a biopharmaceutical company.

Biotechnology · Florham Park$130.0M Post-IPO Equity
NTx
December 2025

Nature’s Toolbox is a biotechnology company that provides a proprietary host-independent biological manufacturing and development platform.

Biotechnology · Rio Rancho$10.0M Venture - Series Unknown
Ambros Therapeutics
December 2025

Ambros Therapeutics is a clinical-stage biotechnology company.

Biotechnology · Irvine$125.0M Series A
Tenaya Therapeutics
December 2025

Tenaya Therapeutics a clinical-stage biotechnology company that develops novel therapies to treat heart diseases.

Biopharma · San Francisco$60.0M Post-IPO Equity
Wave Life Sciences
December 2025

Wave Life Sciences is a clinical-stage RNA medicines company committed to delivering life-changing treatments for people battling diseases

Biotechnology · Boston$350.0M Post-IPO Equity
Sidera Bio
December 2025

Sidera Bio harness human genetics, that helps in transformative medicines for patients.

Genetics · Copenhagen$109.0M Series A
Protara Therapeutics
December 2025

Protara Therapeutics develops transformative therapies for people with cancer and rare diseases with limited treatment options.

Biotechnology · New York$75.0M Post-IPO Equity
Triana Biomedicines
December 2025

Triana Biomedicines is a developer of a molecular glue discovery platform to regulate disease.

Biopharma · Lexington$120.0M Series B
Belite Bio
December 2025

Belite Bio is a clinical stage biopharmaceutical drug development company.

Biotechnology · San Diego$350.0M Post-IPO Equity
NanoMosaic
November 2025

NanoMosaic provides solutions for early illness detection, prognostic monitoring, and biomarker identification.

Biopharma · Waltham$3.0M Venture - Series Unknown
Sortera Technologies
November 2025

Sortera Alloys manufactures low-cost, high-quality metal alloys for domestic manufacturing using its artificial intelligence technology.

Artificial Intelligence (AI) · Fort Wayne$45.0M Venture - Series Unknown
Artios Pharma
November 2025

Artios Pharma is a biopharmaceutical company that provides new solutions in the DNA damage response (DDR) field.

Biopharma · Cambridge$115.0M Series D
Invivyd
November 2025

Invivyd develops antibodies to transcend the limitations of the human immune system and fight against viral infections.

Biotechnology · Waltham$125.0M Post-IPO Equity
Biohaven Pharmaceutical
November 2025

Biohaven is a biopharmaceutical company that develops drug candidates targeting neurological diseases.

Biotechnology · New Haven$200.0M Post-IPO Equity
Azalea Therapeutics
November 2025

Azalea Therapeutics is a biotechnology company with a primary focus on developing cancer immunotherapies.

Biotechnology · Berkeley$65.0M Series A
Seres Therapeutics
October 2025

Seres Therapeutics is a microbiome therapeutics company that develops treatments for serious diseases.

Biopharma · Cambridge$3.6M Grant
Hemab
October 2025

Hemab is a clinical-stage biotech company that develops prophylactic biologic therapies for underserved bleeding and thrombotic.

Biotechnology · Copenhagen$157.0M Series C
VitriVax
October 2025

VitriVax is a formulation technology company that engineers solutions to maximize the accessibility and utility of human vaccines.

Biotechnology · Boulder$17.3M Series B
Electra Therapeutics
October 2025

Electra Therapeutics is a clinical-stage biotechnology company developing antibody therapies for immunological diseases and cancer.

Biotechnology · San Francisco$183.0M Series C

Where RA Capital Management invests

Biotechnology21
Health Care12
Therapeutics12
Pharmaceutical9
Medical8
Biopharma7

About RA Capital Management's portfolio

How many companies has RA Capital Management invested in?▸

RA Capital Management has invested in 467 companies tracked in our database. The portfolio spans multiple industries and funding stages, from seed-stage startups to late-stage companies.

What industries does RA Capital Management invest in?▸

RA Capital Management's top investment sectors include Biotechnology, Health Care, Therapeutics, Pharmaceutical, Medical. The firm invests across 15 different industry categories.

What is RA Capital Management's largest investment?▸

Among tracked funding rounds, Wave Life Sciences received $350.0M in a Post-IPO Equity round. RA Capital Management's total known invested capital is $56.7B.

What is the average investment size for RA Capital Management?▸

RA Capital Management's average investment size is $123.5M across its portfolio of 467 companies.

What are RA Capital Management's most recent investments?▸

Recent RA Capital Management portfolio additions include Nautilus Biotechnology, BioAge Labs, Kinaset Therapeutics, Diagonal Therapeutics, Century Therapeutics. These companies were founded in 2020 or later.

Reach the founders behind these 467 companies
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