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Castle Biosciences

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Castle Biosciences develops and validates diagnostic tests and technologies for the treatment of cancer

Friendswood, United StatesFounded 2008Biotech & Life Sciences
Valuation $625M Market cap · Aug/2026
Revenue $366M Latest reported FY

At a glance

Status
Listed
Founded
2008
Headquarters
Friendswood, United States
Listing
IPO 2019
Sector
Biotech & Life Sciences
Power Law
Thoroughbred$100M+ revenue

Knowledge graph

News, research, reports and resources connected to this company by Dealroom

Investors

4 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed1 investor entered at this stage

Series A1 investor entered at this stage

  • HealthQuest Capital

Series B and later2 investors entered at this stage

Talent

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Employees mapped 772 incl. 6 AI specialists
Founders Hidden — book a demo/100 quality score
Key operators 7 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
4 countries with
team presence
🇺🇸 United States99.3%
🇬🇧 United Kingdom0.2%
🇦🇺 Australia0.2%
🇵🇪 Peru0.2%
4 countries shown
Web traffic by country
24K monthly visits
across markets
🇺🇸 United States88.3%
🇬🇧 United Kingdom6.3%
🇨🇦 Canada3.3%
🇵🇭 Philippines1.3%
🇮🇳 India0.4%
Top 5 markets shown

Patents

Estimated portfolio value
$23M

18 active patent families included in this estimate.

A patent family groups patent filings for the same invention. Source: Dealroom · PatSnap.

Explore the patent portfolioPatent records, technology areas and peer comparisonsBook a demo

Investments and acquisitions

Disclosed deals where Castle Biosciences was the backer or acquirer, 2021–2025. Toggle between venture rounds, M&A, or both. The map below is grouped by the target company's sector — the colored pill on each chip is the round type.

Portfolio analysis

4 deals across Castle Biosciences's capital deployment.

Where the deals concentrate by sector, stage, and decade.

By sectorCount
    By stageCount
      By periodCount

        Where Castle Biosciences deploys vs peers

        Each axis is a Dealroom topic tag — picked from the cluster's most-tagged themes. Values are normalized per axis: the peer with the highest tag-coverage on that axis sits at the edge, others scale relative to them. Toggle between M&A, venture, or both.

        Compare against

        Castle Biosciences's portfolio, mapped.

        Stage
        Period
        4 of 4 deals

        Market sentiment

        Posts on X, past 7 days

        An AI-synthesised read of the highest-engagement posts about Castle Biosciences on X, ranked by likes and reposts, corporate channels excluded.

        Reading the room on X — pulling top posts and synthesizing themes…

        Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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