Insights

Clinical Adoption Castle Biosciences offers a diverse portfolio of proprietary tests across dermatologic cancers, Barrett’s esophagus, and uveal melanoma, presenting clear opportunities to partner with larger dermatology networks, oncology centers, and pathology labs to accelerate adoption. Focus on cross-selling complementary tests within patient care pathways and establishing payer-supported value propositions to integrate these tests into standard-of-care decision making.

Geographic Expansion With a Texas HQ and multiple laboratories, plus recent expansion activities, there is capacity to scale national coverage and support large health systems. Target regional healthcare networks and academic centers with centralized testing partnerships, faster turnaround, and localized support to drive broader test utilization.

Strategic Partnerships Recent collaboration activity, including SciBase AB, signals openness to co-development and joint studies. Leverage this to pursue additional partnerships with pharma and biotech players in dermatology, GI oncology, and ocular oncology to fund trials, co-market tests, and expand data-driven care pathways.

Market Validation Industry recognition and conference engagement, along with solid early-2026 revenue signals, provide a compelling ROI narrative for payers and providers. Use awards and clinical outcomes data to support value-based contracting and expedite coverage discussions for existing and pipeline tests.

Portfolio Synergy A five-test portfolio aligned along the patient care continuum enables cross-sell and bundling opportunities within hospitals and lab networks. Develop multi-test procurement strategies, bundled pricing, and clinician education to drive broader adoption across dermatology, GI, and ocular oncology teams.

Similar companies to Castle Biosciences, Inc.

Castle Biosciences, Inc. Tech Stack

Castle Biosciences, Inc. uses 8 technology products and services including The Trade Desk, Docker, Cloudflare CDN, and more. Explore Castle Biosciences, Inc.'s tech stack below.

  • The Trade Desk
    Advertising
  • Docker
    Containerization
  • Cloudflare CDN
    Content Delivery Network
  • Cloudflare
    Content Management System
  • CompTIA Network+
    IT
  • DocuSign
    Miscellaneous
  • Microsoft Azure
    Platform As A Service
  • BrightEdge
    Search Engines

Media & News

Castle Biosciences, Inc.'s Email Address Formats

Castle Biosciences, Inc. uses at least 1 format(s):
Castle Biosciences, Inc. Email FormatsExamplePercentage
FLast@castlebiosciences.comJDoe@castlebiosciences.com
93%
Last@castlebiosciences.comDoe@castlebiosciences.com
6%
First@castlebiosciences.comJohn@castlebiosciences.com
1%

Frequently Asked Questions

What is Castle Biosciences, Inc.'s phone number?

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You can contact Castle Biosciences, Inc.'s main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Castle Biosciences, Inc.'s stock symbol?

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Castle Biosciences, Inc. is a publicly traded company; the company's stock symbol is CSTL.

What is Castle Biosciences, Inc.'s official website and social media links?

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Castle Biosciences, Inc.'s official website is castlebiosciences.com and has social profiles on LinkedInCrunchbase.

What is Castle Biosciences, Inc.'s SIC code NAICS code?

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Castle Biosciences, Inc.'s SIC code is 8731 - Commercial Physical and Biological Research NAICS code is 541714 - Research and Development in Biotechnology (except Nanobiotechnology).

How many employees does Castle Biosciences, Inc. have currently?

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As of July 2026, Castle Biosciences, Inc. has approximately 744 employees across 3 continents, including North AmericaEuropeAfrica. Key team members include Vice President Of Accounting: D. W.Vice President Of Cloud Services: K. S.Vice President, Information Technology: C. O.. Explore Castle Biosciences, Inc.'s employee directory with LeadIQ.

What industry does Castle Biosciences, Inc. belong to?

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Castle Biosciences, Inc. operates in the Biotechnology Research industry.

What technology does Castle Biosciences, Inc. use?

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Castle Biosciences, Inc.'s tech stack includes The Trade DeskDockerCloudflare CDNCloudflareCompTIA Network+DocuSignMicrosoft AzureBrightEdge.

What is Castle Biosciences, Inc.'s email format?

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Castle Biosciences, Inc.'s email format typically follows the pattern of FLast@castlebiosciences.com. Find more Castle Biosciences, Inc. email formats with LeadIQ.

How much funding has Castle Biosciences, Inc. raised to date?

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As of July 2026, Castle Biosciences, Inc. has raised $429M in funding. The last funding round occurred on Dec 15, 2020 for $267M.

When was Castle Biosciences, Inc. founded?

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Castle Biosciences, Inc. was founded in 2008.
Castle Biosciences, Inc. logo

Castle Biosciences, Inc.

Biotechnology ResearchTexas, United States501-1000 Employees

Castle Biosciences, Inc. is a biotechnology research company that specializes in diagnostic tests intended to guide patient care. It is based in Friendswood, Texas, with laboratory operations in Phoenix, Arizona and Pittsburgh, Pennsylvania, and it serves clinicians and patients seeking data to inform cancer treatment decisions. The company’s portfolio includes tests for dermatologic cancers, Barrett’s esophagus, and uveal melanoma, each designed to address specific clinical questions along the care continuum.

These tests leverage tumor biology to provide objective risk assessments, such as the likelihood of metastasis, recurrence, or progression, to support treatment planning. Recent developments include the opening of a new corporate headquarters in Friendswood, signaling an expanded footprint for its diagnostic operations.

Section iconCompany Overview

Phone number
SIC Code
8731 - Commercial Physical and Biological Research
Stock Symbol
CSTL
NAICS Code
541714 - Research and Development in Biotechnology (except Nanobiotechnology)
Founded
2008
Employees
501-1000

Section iconFunding & Financials

  • $429M

    Castle Biosciences, Inc. has raised a total of $429M of funding over 17 rounds. Their latest funding round was raised on Dec 15, 2020 in the amount of $267Mas a post_ipo_equity.

  • $100M$250M

    Castle Biosciences, Inc.'s revenue is estimated to be in the range of $100M$250M

Section iconFunding & Financials

  • $429M

    Castle Biosciences, Inc. has raised a total of $429M of funding over 17 rounds. Their latest funding round was raised on Dec 15, 2020 in the amount of $267Mas a post_ipo_equity.

  • $100M$250M

    Castle Biosciences, Inc.'s revenue is estimated to be in the range of $100M$250M

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