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RA Capital Management Portfolio Companies

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

Last updated: July 2026

RA Capital Management Investment Overview

Portfolio Companies
439
Total Invested
$40.6B
Average Investment
$110.2M

RA Capital Management's Most Recent Investments (2020+)

Company NameFoundedFunding StageAmountCity
Elektrofi2024Series C$112.3MBoston
Halda Therapeutics2024Series B$126.0MNew Haven
Idrx2024Series B$120.0MCambridge
MBX Biosciences2024Series C$63.5MCarmel
Outpace Bio2024Series B$144.0MSeattle
Bright Peak Therapeutics2024Series C$90.0MAllschwil
Interius BioTherapeutics2024Series B$51.4MPhiladelphia
Ajax Therapeutics2024Series C$95.0MCambridge
Bluejay Therapeutics2024Series C$182.0MSan Mateo
Asher Bio2024Series C$55.0MSan Francisco

Complete List of RA Capital Management Portfolio Companies (439)

Export
#CompanyStageAmountLocation
151ElektrofiSeries C$112.3MBoston, United States
152Halda TherapeuticsSeries B$126.0MNew Haven, United States
153IdrxSeries B$120.0MCambridge, United States
154MBX BiosciencesSeries C$63.5MCarmel, United States
155Outpace BioSeries B$144.0MSeattle, United States
156Bright Peak TherapeuticsSeries C$90.0MAllschwil, Switzerland
157Interius BioTherapeuticsSeries B$51.4MPhiladelphia, United States
158Ajax TherapeuticsSeries C$95.0MCambridge, United States
159Bluejay TherapeuticsSeries C$182.0MSan Mateo, United States
160Asher BioSeries C$55.0MSan Francisco, United States
Alternative MedicineBiotechnologyTherapeutics

Elektrofi is a preclinical-stage company dedicated to redefining the standard of drug delivery by transforming the patient experience.

Boston, United States
August 2024
$112.3M
Series C

Founder Contacts

30,000+ verified contacts

BiotechnologyMedicalTherapeutics

Halda Therapeutics is a research-stage drug discovery company.

New Haven, United States
August 2024
$126.0M
Series B

Founder Contacts

30,000+ verified contacts

BiotechnologyLife ScienceOncologyProduct Research

Idrx is a clinical-stage biopharmaceutical that develops oncology-based precision therapies to treat cancer.

Cambridge, United States
August 2024
$120.0M
Series B

Founder Contacts

30,000+ verified contacts

BiotechnologyHealth CareTherapeutics

MBX Biosciences is a preclinical-stage biotech company that creates therapies to treat rare endocrine diseases.

Carmel, United States
August 2024
$63.5M
Series C

Founder Contacts

30,000+ verified contacts

BiotechnologyHealth CareLife SciencePharmaceutical

Outpace Bio develops innovative cell therapies to enhance cancer treatment efficacy.

Seattle, United States
August 2024
$144.0M
Series B

Founder Contacts

30,000+ verified contacts

BiotechnologyLife ScienceMedicalTherapeutics

Bright Peak is a biotech company that develops a portfolio of immunotherapies for the treatment of cancer and autoimmune diseases.

Allschwil, Switzerland
June 2024
$90.0M
Series C

Founder Contacts

30,000+ verified contacts

BiopharmaBiotechnologyHealth CareTherapeutics

Interius BioTherapeutics is a biopharmaceutical company that develops in vivo cell-specific gene medicines to treat B cell lymphomas.

Philadelphia, United States
June 2024
$51.4M
Series B

Founder Contacts

30,000+ verified contacts

BiotechnologyLife ScienceMedical

Ajax Therapeutics is a biotechnology company developing therapies to target cytokine signaling pathways that drive hematologic malignancies.

Cambridge, United States
May 2024
$95.0M
Series C

Founder Contacts

30,000+ verified contacts

BiotechnologyHealth CarePharmaceutical

Bluejay Therapeutics is a private biopharmaceutical company focused on the development of cures for infectious diseases.

San Mateo, United States
May 2024
$182.0M
Series C

Founder Contacts

30,000+ verified contacts

BiotechnologyTherapeutics

Asher Bio is a biotechnology company that specializes in the fields of therapeutics builds better immunotherapy for cancer.

San Francisco, United States
April 2024
$55.0M
Series C

Founder Contacts

30,000+ verified contacts

BiotechnologyHealth CareHealth DiagnosticsTherapeutics

SeLux Diagnostics is a developer of a next-generation phenotyping platform that provides personalized antimicrobial therapies to patients.

Charlestown, United States
April 2024
$48.0M
Series D

Founder Contacts

30,000+ verified contacts

BiotechnologyOncologyTherapeutics

ProfoundBio is a developer of targeted therapeutics intended for patients with cancer.

Seattle, United States
February 2024
$112.0M
Series B

Founder Contacts

30,000+ verified contacts

BiopharmaBiotechnologyMedicalTherapeutics

Rampart Bioscience develops gene medicines to provide long-lasting treatments for a wide range of diseases.

La Jolla, United States
October 2023
$85.0M
Series A

Founder Contacts

30,000+ verified contacts

Health CareMedicalWellness

Ventricle Health offers evidence-based therapy, remote patient monitoring, patient education, and advocacy services for cardiac care.

Greensboro, United States
October 2023
$8.0M
Seed

Founder Contacts

30,000+ verified contacts

BioinformaticsBiometricsBiopharmaBiotechnologyOncology

Mariana Oncology is a biotechnology research industry.

Watertown, United States
September 2023
$175.0M
Series B

Founder Contacts

30,000+ verified contacts

BiopharmaBiotechnologyHealth CareLife Science

ExcepGen is solving fundamental underlying problems in drug discovery to create a new generation of therapeutics.

San Francisco, United States
August 2023
$4.0M
Seed

Founder Contacts

30,000+ verified contacts

BiotechnologyLife ScienceMedical

Capacity Bio is a therapeutics company that is focused on mitophagy.

Palo Alto, United States
March 2023
$35.0M
Series A

Founder Contacts

30,000+ verified contacts

Food and BeverageLivestockOrganic

Cooks Venture operates as a regenerative pasture-raised chicken and meat company.

Decatur, United States
January 2023
$47.7M
Venture - Series Unknown

Founder Contacts

30,000+ verified contacts

BiotechnologyHealth CareTherapeutics

Expansion Therapeutics is a biotechnology company focusing on developing transformative oral medicines for severe RNA-mediated diseases.

San Diego, United States
January 2023
$6.9M
Venture - Series Unknown

Founder Contacts

30,000+ verified contacts

BiotechnologyHealth CareMedical

Verdiva Bio creates cutting-edge treatments that improve results for patients with obesity and cardiometabolic diseases.

London, United Kingdom
January 2025
$411.0M
Series A

Founder Contacts

30,000+ verified contacts

BiopharmaBiotechnologyLife ScienceMedicalTherapeutics

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

Watertown, United States
January 2026
$125.0M
Series B

Founder Contacts

30,000+ verified contacts

BiotechnologyHealth CareHealth Diagnostics

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

Philadelphia, United States
January 2026
$135.0M
Post-IPO Equity

Founder Contacts

30,000+ verified contacts

BiotechnologyPharmaceutical

Phathom Pharmaceuticals is a biopharmaceutical company.

Florham Park, United States
January 2026
$130.0M
Post-IPO Equity

Founder Contacts

30,000+ verified contacts

BiotechnologyLife ScienceMedicalTherapeutics

Synthekine is a development stage biotherapeutics company focused on the engineering of novel specific and potent cytokine therapies.

Menlo Park, United States
January 2023
$100.0M
Series C

Founder Contacts

30,000+ verified contacts

Artificial Intelligence (AI)BiotechnologyMachine LearningTherapeutics

Metagenomi uses metagenomics and machine learning to discover novel genome editing systems for therapeutics development.

Emeryville, United States
January 2023
$100.0M
Series B

Founder Contacts

30,000+ verified contacts

Showing 151-175 of 439 portfolio companies

Frequently Asked Questions About RA Capital Management

How many companies has RA Capital Management invested in?

RA Capital Management has invested in 439 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, Therapeutics, Health Care, Medical, Life Science. The firm invests across 19 different industry categories.

What is RA Capital Management's largest investment?

Among tracked funding rounds, Verdiva Bio received $411.0M in a Series A round. RA Capital Management's total known invested capital is $40.6B.

What is the average investment size for RA Capital Management?

RA Capital Management's average investment size is $110.2M across its portfolio of 439 companies.

What are RA Capital Management's most recent investments?

Recent RA Capital Management portfolio additions include Elektrofi, Halda Therapeutics, Idrx, MBX Biosciences, Outpace Bio. These companies were founded in 2020 or later.

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