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Cybersecurity startups in Washington

12 cybersecurity startups in Washington have raised money in rounds we track. These are the 12 that have raised the most, $366M between them.

$366Mraised by these 12
12on our record in all
Sublime Securityraised the most
  1. 1Sublime SecuritySublime Security is an adaptive, AI-powered cloud email security platform founded in 2019 in Washington, DC.

    Sublime Security is an adaptive, AI-powered cloud email security platform founded in 2019 in Washington, DC.

    Founded 2019Washington, United States$150Mlast round Nov 2025
  2. 2VirtruVirtru is a leader in data privacy, security, and encryption, focusing on Zero Trust and data-centric security.

    Virtru is a leader in data privacy, security, and encryption, focusing on Zero Trust and data-centric security.

    Founded 2012Washington, United States$89Mlast round Jul 2025
  3. 3BarklyBarkly is a cybersecurity company based in Boston, Massachusetts, specializing in endpoint protection.

    Barkly is a cybersecurity company based in Boston, Massachusetts, specializing in endpoint protection.

    Founded 2015Washington, United States$23Mlast round Jan 2017
  4. 4AletheaAlethea, also known as Alethea Group, is a technology company based in Washington, D.C., founded in 2019.

    Alethea, also known as Alethea Group, is a technology company based in Washington, D.C., founded in 2019.

    Founded 2019Washington, United States$20Mlast round Apr 2024
  5. 5AuthMindAuthMind is an identity security company founded in 2020 by cybersecurity experts Shlomi Yanai and Ankur Panchbudhe.

    AuthMind is an identity security company founded in 2020 by cybersecurity experts Shlomi Yanai and Ankur Panchbudhe.

    Founded 2020Washington, United States$19Mlast round Apr 2025
  6. 6PreemptPREEMPT specializes in mediated disputes, entrepreneurship, consulting, training, and hostile work environment assessments.

    PREEMPT specializes in mediated disputes, entrepreneurship, consulting, training, and hostile work environment assessments.

    Founded 1998Washington, United States$18Mlast round Jun 2018
  7. 7DNSFilterDNSFilter is a cybersecurity company that specializes in protective DNS solutions, AI-driven content filtering, and threat protection.

    DNSFilter is a cybersecurity company that specializes in protective DNS solutions, AI-driven content filtering, and threat protection.

    Founded 2015Washington, United States$15Mlast round Aug 2023
  8. 8VanishIDVanishID is a cybersecurity company based in Bethesda, Maryland, founded in 2019.

    VanishID is a cybersecurity company based in Bethesda, Maryland, founded in 2019.

    Founded 2019Washington, United States$10Mlast round Apr 2025
  9. 9Tidal CyberTidal Cyber is a cybersecurity company based in Reston, Virginia, founded in 2022 by veterans from MITRE.

    Tidal Cyber is a cybersecurity company based in Reston, Virginia, founded in 2022 by veterans from MITRE.

    Founded 2022Washington, United States$10Mlast round Sept 2025
  10. 10NisosNisos is a managed intelligence and investigations firm that provides active defense technology-enabled services and products.

    Nisos is a managed intelligence and investigations firm that provides active defense technology-enabled services and products.

    Founded 2015Washington, United States$7.6Mlast round Dec 2022
  11. 11HyperQubeHyperQube is a cybersecurity and virtual infrastructure orchestration company based in Arlington, Virginia.

    HyperQube is a cybersecurity and virtual infrastructure orchestration company based in Arlington, Virginia.

    Founded 2016Washington, United States$2.5Mlast round Aug 2020
  12. 12AntiraTechAntiraTech is a high-tech company that specializes in the areas of security, offense, and defense in actual conflict.

    AntiraTech is a high-tech company that specializes in the areas of security, offense, and defense in actual conflict.

    Founded 2018Washington, United States$1.4Mlast round Jun 2023
Total fundinghow the list is ranked
15 November 2026updated nightly
Rounds we tracksource: Millionrounds

Companies whose funding rounds we classed in this sector, ranked by the total they have raised in rounds we hold. Nobody pays to be on a list.

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