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§ Venture Capital · Friendswood, TX, USA
Diagnostics company developing gene expression profiling tests for cancer patients, focused on prognostic insights for skin cancers.
Castle Biosciences is a Friendswood, Texas-based company that develops and commercializes laboratory-developed diagnostic tests using gene expression profiling to provide prognostic information for cancer patients. The company primarily focuses on dermatologic cancers, including cutaneous melanoma and squamous cell carcinoma, and has generated over 160,000 cumulative test reports as of 2024. Operating with approximately 70 employees prior to its July 2019 initial public offering, the firm sells its diagnostic tests directly to physicians and oncologists to help stratify metastatic risk and guide clinical treatment decisions. Castle Biosciences has expanded its oncology diagnostics portfolio through strategic acquisitions, including the purchase of Cernostics, Inc. and the myPath Melanoma test, while securing investment backing from the American Cancer Society's BrightEdge fund. The diagnostic organization was originally founded in 2007 by Derek J. Maetzold alongside clinical and scientific collaborators.
Castle Biosciences has raised $55.5M across 5 funding rounds.
Key people at Castle Biosciences.
Castle Biosciences was founded in 2008 by Derek Maetzold (President, CEO and Founder).
Castle Biosciences has raised $55.5M in total across 5 funding rounds.
Castle Biosciences was founded in 2008 by Derek Maetzold (President, CEO and Founder).
Castle Biosciences has raised $55.5M in total across 5 funding rounds.
Castle Biosciences's investors include Bob Crutchfield, Silicon Valley Bank, Victor Hwang, HealthQuest Capital, Mountain Group Partners, Michael White, Garheng Kong, Longfellow Venture Partners.
Key people at Castle Biosciences.
Castle Biosciences has raised $55.5M across 5 funding rounds. Most recently, it raised $12.0M Other Equity in April 2019.
| Date | Round | Lead Investors | Other Investors | Status |
|---|---|---|---|---|
| Apr 18, 2019 | $12M Venture Round | BOB Crutchfield | — | Announced |
| Mar 28, 2016 | $14M Debt Financing | Silicon Valley Bank | — | Announced |
| Jul 27, 2015 | $11.7M Series F | Victor Hwang | HealthQuest Capital, Mountain Group Partners | Announced |
| Apr 14, 2015 | $6M Debt Financing | Michael White | — | Announced |
| Aug 13, 2014 | $11.8M Venture Round | Garheng Kong | Longfellow Venture Partners, Mountain Group Partners | Announced |
