# Hercules Capital's Biotech Investments: 20 Startups in Its Portfolio (2026)

> The 20 Biotech startups Hercules Capital has backed, by stage: $2.7B raised between them. From the rounds we track; updated nightly.

Source: https://millionrounds.com/portfolio-maps/hercules-capital-biotech-portfolio (Millionrounds; every figure on the page links to its filing or article)

## Stage not reported

11

- [Phathom Pharmaceuticals](https://millionrounds.com/company/phathom-pharmaceuticals)
- [4D Molecular Therapeutics](https://millionrounds.com/company/4d-molecular-therapeutics)
- [MoonLake Immunotherapeutics](https://millionrounds.com/company/moonlake-immunotherapeutics)
- [X4 Pharmaceuticals](https://millionrounds.com/company/x4-pharmaceuticals)
- [Replimune Group](https://millionrounds.com/company/replimune-group)
- [Aprecia Pharmaceuticals](https://millionrounds.com/company/aprecia-pharmaceuticals)
- [*S* Sebacia](https://millionrounds.com/company/sebacia)
- [Eloxx](https://millionrounds.com/company/eloxx)
- [Alladapt Immunotherapeutics](https://millionrounds.com/company/alladapt-immunotherapeutics)
- [AmplifyBio](https://millionrounds.com/company/amplifybio)
- [Gritstone bio](https://millionrounds.com/company/gritstone-bio)

## Series B

5

- [Lucira Health](https://millionrounds.com/company/lucira-health)
- [SynOx Therapeutics](https://millionrounds.com/company/synox-therapeutics)
- [Provention Bio](https://millionrounds.com/company/provention-bio)
- [Locus Biosciences](https://millionrounds.com/company/locus-biosciences)
- [Gamma Medica](https://millionrounds.com/company/gamma-medica)

## Series C and later

4

- [Medrobotics](https://millionrounds.com/company/medrobotics)
- [908 Devices](https://millionrounds.com/company/908-devices)
- [NorthSea Therapeutics](https://millionrounds.com/company/northsea-therapeutics)
- [Sight Sciences](https://millionrounds.com/company/sight-sciences)

## Segment by segment

### Stage not reported

11 startups · $1.9B raised

- [**Phathom Pharmaceuticals**](https://millionrounds.com/company/phathom-pharmaceuticals) Phathom Pharmaceuticals is a biopharmaceutical company. United States $530M
- [**4D Molecular Therapeutics**](https://millionrounds.com/company/4d-molecular-therapeutics) 4D Molecular Therapeutics designs, develops, and commercializes transformative gene therapeutic products for unmet medical conditions. United States $307M
- [**MoonLake Immunotherapeutics**](https://millionrounds.com/company/moonlake-immunotherapeutics) MoonLake Immunotherapeutics is a clinical-stage biopharmaceuticals company. Switzerland $275M
- [**X4 Pharmaceuticals**](https://millionrounds.com/company/x4-pharmaceuticals) X4 Pharmaceuticals is a clinical-stage oncology company developing oral small molecule CXCR4 antagonists for the treatment. United States $193M
- [**Replimune Group**](https://millionrounds.com/company/replimune-group) Replimune Group develop the next generation of ‘oncolytic immunotherapies’ for the treatment of cancer. United States $140M
- [**Aprecia Pharmaceuticals**](https://millionrounds.com/company/aprecia-pharmaceuticals) Aprecia Pharmaceuticals develops precision drug delivery systems and products. United States $123M
- [*S* **Sebacia**](https://millionrounds.com/company/sebacia) Sebacia is a commercial-stage dermatology company that develops an alternative to the topical and systemic drugs for the treatment of acne. United States $102M
- [**Eloxx**](https://millionrounds.com/company/eloxx) Eloxx Pharmaceuticals is a clinical-stage biopharmaceutical company developing novel RNA-modulating drug candidates. United States $66M

### Series B

5 startups · $338M raised

- [**Lucira Health**](https://millionrounds.com/company/lucira-health) Lucira Health is a biotechnology company that offers disposable test kits to detect RNA and DNA of infectious diseases. United States $95M
- [**SynOx Therapeutics**](https://millionrounds.com/company/synox-therapeutics) SynOx Therapeutics is a late-stage clinical biopharmaceutical company based in Dublin, Ireland. Ireland $92M
- [**Provention Bio**](https://millionrounds.com/company/provention-bio) Provention Bio is a clinical stage biopharmaceutical dedicated to sourcing, developing, and commercializing novel therapeutics. United States $63M
- [**Locus Biosciences**](https://millionrounds.com/company/locus-biosciences) Locus Biosciences develops CRISPR-engineered precision antibacterial platform designed to revolutionize the treatment of bacterial disease. United States $54M
- [**Gamma Medica**](https://millionrounds.com/company/gamma-medica) Gamma Medica offers LumaGEM® MBI System, an FDA-cleared dual-headed digital imaging system. United States $34M

### Series C and later

4 startups · $505M raised

- [**Medrobotics**](https://millionrounds.com/company/medrobotics) Medrobotics is a medical robotics company developing and commercializing the Flex Robotic System. United States $176M
- [**908 Devices**](https://millionrounds.com/company/908-devices) 908devices manufactures battery-operated, hand-held chemical detection tools used in mass spectrometry. United States $168M
- [**NorthSea Therapeutics**](https://millionrounds.com/company/northsea-therapeutics) NorthSea Therapeutics B.V. Netherlands $109M
- [**Sight Sciences**](https://millionrounds.com/company/sight-sciences) Sight Sciences is a medical device company that uses a computer-based device designed for the treatment of eye disease. United States $52M

**How this map is made.** Every startup here works in Biotech and has raised money in a round we track that names Hercules Capital 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)

[Portfolio map **Hercules Capital portfolio map** 46 startups · $7.7B](https://millionrounds.com/portfolio-maps/hercules-capital-portfolio-map)[Co-investors **Who invests with Hercules Capital** 37 co-investors](https://millionrounds.com/portfolio-maps/hercules-capital-co-investors)[Sector portfolio **Y Combinator's AI portfolio** 1,143 startups · $44B](https://millionrounds.com/portfolio-maps/y-combinator-ai-portfolio)[Sector portfolio **Y Combinator's Fintech portfolio** 338 startups · $24B](https://millionrounds.com/portfolio-maps/y-combinator-fintech-portfolio)[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)

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