# Third Rock Ventures

Source: https://onco.cc/companies/third-rock-ventures/  
OnCo record `third-rock-ventures` (Company). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

Third Rock Ventures builds biotech companies from scratch around a scientific idea, then funds and staffs them. Several of the best-known precision oncology companies of the last fifteen years started in its offices.

## Summary

Third Rock Ventures is a Boston venture firm whose model is company creation: partners incubate a concept, assemble founding scientists and an interim management team, and fund the company through its first years before it raises from others or lists. Oncology has been a central theme since the firm's founding in 2007, with companies built around genomic profiling, kinase inhibitors, cancer metabolism, synthetic lethality and targeted immunotherapies, and a habit of pairing a therapeutic platform with a diagnostic rationale. Its portfolio pages list current and former companies; portfolio links in OnCo are derived from the startup records that name Third Rock as an investor.

## Fields

- Kind: Company
- Last checked: 2026-09-10
- Tags: vc
- HQ: Boston, MA
- Type: investor
- Website: https://www.thirdrockventures.com

## Sources

- Official website: https://www.thirdrockventures.com
- Portfolio: https://www.thirdrockventures.com/portfolio

## Connected records

- fronts: [Diagnostics & Biomarkers](https://onco.cc/fronts/diagnostics/), [Immunotherapy](https://onco.cc/fronts/immunotherapy/), [Targeted Therapy](https://onco.cc/fronts/targeted-therapy/)
- companies: [Asher Biotherapeutics](https://onco.cc/companies/asher-bio/)

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JSON: https://onco.cc/api/v1/entities/third-rock-ventures.json