Top list · United States

Cybersecurity startups in the United States

1,085 cybersecurity startups in the United States have raised money in rounds we track. These are the 50 that have raised the most, $29B between them, with New York the most common home.

$29Braised by these 50
1,085on our record in all
New Yorkmost common home
Hadrianraised the most
  1. 1HadrianHadrian is a machine parts startup that manufactures precision components for technology companies.

    Hadrian is a machine parts startup that manufactures precision components for technology companies.

    Founded 2020United States$2.2Blast round Oct 2026
  2. 2KnowBe4KnowBe4 is a security platform for security awareness training and simulated phishing attacks.

    KnowBe4 is a security platform for security awareness training and simulated phishing attacks.

    Founded 2010Clearwater, United States$1.8Blast round Jun 2025
  3. 3VerkadaVerkada Inc.

    Verkada Inc.

    Founded 2016San Mateo, United States$1.6Blast round Jul 2026
  4. 4RubrikRubrik offers live data access for recovery and application development by fusing enterprise data management with web-scale IT.

    Rubrik offers live data access for recovery and application development by fusing enterprise data management with web-scale IT.

    Founded 2014Palo Alto, United States$1.6Blast round May 2025
  5. 5KeyfactorKeyfactor is a global leader in digital trust, specializing in public key infrastructure (PKI) and crypto-agility solutions.

    Keyfactor is a global leader in digital trust, specializing in public key infrastructure (PKI) and crypto-agility solutions.

    Founded 2001Independence, United States$1.1Blast round Jul 2026
  6. 6NinjaOneNinjaOne is a cloud-native Unified IT Operations Platform that simplifies IT management for Managed Service Providers (MSPs) and corporate IT departments.

    NinjaOne is a cloud-native Unified IT Operations Platform that simplifies IT management for Managed Service Providers (MSPs) and corporate IT departments.

    Founded 2013Austin, United States$900Mlast round Jun 2026
  7. 7True AnomalyTrue Anomaly is a defense technology company specializing in space defense.

    True Anomaly is a defense technology company specializing in space defense.

    Founded 2022Englewood, United States$860Mlast round May 2026
  8. 8ChainguardChainguard is a cybersecurity company founded in 2021, focused on software supply chain security.

    Chainguard is a cybersecurity company founded in 2021, focused on software supply chain security.

    Founded 2021Kirkland, United States$776Mlast round Oct 2025
  9. 9UpwindFounded -United States$750Mlast round Oct 2026
  10. 10Quantum ComputingQuantum Computing is developing processes to commercialize quantum computing hardware and application services.

    Quantum Computing is developing processes to commercialize quantum computing hardware and application services.

    Founded 2018Hoboken, United States$750Mlast round Oct 2025
  11. 11SaviyntSaviynt is a global enterprise identity security company based in El Segundo, California.

    Saviynt is a global enterprise identity security company based in El Segundo, California.

    Founded 2010El Segundo, United States$740Mlast round Dec 2025
  12. 12QuantinuumQuantinuum accelerates quantum computing and the development of applications across chemistry, cybersecurity, finance, and optimization.

    Quantinuum accelerates quantum computing and the development of applications across chemistry, cybersecurity, finance, and optimization.

    Founded 2021Broomfield, United States$700Mlast round Sept 2026
  13. 13FidiumFidium was developed to defy consumer expectations of network and internet service providers.

    Fidium was developed to defy consumer expectations of network and internet service providers.

    Founded 2021Mattoon, United States$665Mlast round Mar 2026
  14. 14IslandIsland is an innovative company founded in 2020, specializing in the Enterprise Browser.

    Island is an innovative company founded in 2020, specializing in the Enterprise Browser.

    Founded 2020Dallas, United States$650Mlast round Sept 2026
  15. 15SandboxAQFounded -United States$650Mlast round Jun 2026
  16. 16DataminrDataminr develops an artificial intelligence platform designed for real-time event and risk detection.

    Dataminr develops an artificial intelligence platform designed for real-time event and risk detection.

    Founded 2009New York, United States$587Mlast round Apr 2025
  17. 17TaniumTanium is a privately held company focused on Autonomous IT, specializing in cybersecurity and systems management.

    Tanium is a privately held company focused on Autonomous IT, specializing in cybersecurity and systems management.

    Founded 2007Kirkland, United States$577Mlast round May 2018
  18. 18IllumioIllumio is a cybersecurity company based in Sunnyvale, California, specializing in breach containment and Zero Trust segmentation.

    Illumio is a cybersecurity company based in Sunnyvale, California, specializing in breach containment and Zero Trust segmentation.

    Founded 2013Sunnyvale, United States$558Mlast round Jun 2021
  19. 19ArmisFounded -United States$547Mlast round Nov 2025
  20. 20ReliaQuestReliaQuest is a leading cybersecurity company based in Tampa, Florida, dedicated to enhancing enterprise security.

    ReliaQuest is a leading cybersecurity company based in Tampa, Florida, dedicated to enhancing enterprise security.

    Founded 2007Tampa, United States$530Mlast round Apr 2025
  21. 21CybereasonCybereason is an endpoint detection and response platform that identifies cyber attacks for effective response.

    Cybereason is an endpoint detection and response platform that identifies cyber attacks for effective response.

    Founded 2012San Diego, United States$509Mlast round Mar 2025
  22. 22Flock SafetyFlock Safety develops security solutions using automated license plate recognition (ALPR) cameras.

    Flock Safety develops security solutions using automated license plate recognition (ALPR) cameras.

    Founded 2017Atlanta, United States$485Mlast round Apr 2026
  23. 23CrowdStrikeCrowdStrike is a global cybersecurity leader with an advanced cloud-native platform for protecting endpoints, cloud workloads, identities and data.

    CrowdStrike is a global cybersecurity leader with an advanced cloud-native platform for protecting endpoints, cloud workloads, identities and data.

    Founded 2011Austin, United States$461Mlast round Dec 2022
  24. 24DemistoDemisto Enterprise is a security operations platform that combines intelligent automation and collaboration into a single ChatOps interface.

    Demisto Enterprise is a security operations platform that combines intelligent automation and collaboration into a single ChatOps interface.

    Founded 2015United States$450Mlast round Oct 2018
  25. 25ArmadinFounded -United States$446Mlast round Oct 2026
  26. 26ID.meFounded -United States$444Mlast round Sept 2025
  27. 27DockerDocker’s platform helps millions of developers efficiently and collaboratively build, share, and run applications.

    Docker’s platform helps millions of developers efficiently and collaboratively build, share, and run applications.

    Founded 2011San Francisco, United States$412Mlast round Mar 2022
  28. 28Arctic WolfArctic Wolf helps companies end cyber risk by providing cloud-native security operations technology.

    Arctic Wolf helps companies end cyber risk by providing cloud-native security operations technology.

    Founded 2012Eden Prairie, United States$401Mlast round Oct 2022
  29. 29NetskopeFounded -United States$400Mlast round Sept 2024
  30. 30CloakedCloaked is a consumer-first privacy company founded in 2020 by brothers Arjun and Abhijay Bhatnagar.

    Cloaked is a consumer-first privacy company founded in 2020 by brothers Arjun and Abhijay Bhatnagar.

    Founded 2020New York, United States$400Mlast round Mar 2026
  31. 31CylanceBlackBerry helps organizations defend against cyberthreats.

    BlackBerry helps organizations defend against cyberthreats.

    Founded 2012Waterloo, United States$397Mlast round Jun 2018
  32. 32AnchorFreeAnchorFree is an internet privacy and security company based in Redwood City, California.

    AnchorFree is an internet privacy and security company based in Redwood City, California.

    Founded 2005Redwood City, United States$358Mlast round Sept 2018
  33. 33BitSightBitsight is the global leader in cyber risk intelligence, helping teams make informed risk decisions with the industry’s most extensive external security data a

    Bitsight is the global leader in cyber risk intelligence, helping teams make informed risk decisions with the industry’s most extensive external security data a

    Founded 2011Boston, United States$350Mlast round Sept 2021
  34. 34AliceFounded -United States$329Mlast round Oct 2026
  35. 35DruvaDruva is the leading provider of data security solutions, empowering customers to secure and recover their data from all threats.

    Druva is the leading provider of data security solutions, empowering customers to secure and recover their data from all threats.

    Founded 2008Santa Clara, United States$328Mlast round Jun 2019
  36. 36MosyleMosyle is a leading provider of Apple Mobile Device Management (MDM) and security solutions designed for enterprise and education customers.

    Mosyle is a leading provider of Apple Mobile Device Management (MDM) and security solutions designed for enterprise and education customers.

    Founded 2012Winter Park, United States$312Mlast round Apr 2026
  37. 37GlowFounded -United States$306Mlast round Jul 2026
  38. 38CylakeCylake is a cybersecurity startup founded in March 2026, focusing on AI-native, data-driven cybersecurity platforms.

    Cylake is a cybersecurity startup founded in March 2026, focusing on AI-native, data-driven cybersecurity platforms.

    Founded -Sunnyvale, United States$290Mlast round Sept 2026
  39. 39LookoutLookout, Inc.

    Lookout, Inc.

    Founded 2007Boston, United States$282Mlast round Feb 2015
  40. 40SecurityScorecardSecurityScorecard is a leader in cybersecurity ratings and third-party risk management, providing AI-driven solutions for continuous monitoring of over 12 milli

    SecurityScorecard is a leader in cybersecurity ratings and third-party risk management, providing AI-driven solutions for continuous monitoring of over 12 milli

    Founded 2013New York, United States$278Mlast round Mar 2021
  41. 41TENEX.AITENEX.AI is a cybersecurity company founded in 2024 and based in Sarasota, Florida, with additional offices in Overland Park and Phoenix.

    TENEX.AI is a cybersecurity company founded in 2024 and based in Sarasota, Florida, with additional offices in Overland Park and Phoenix.

    Founded 2024Sarasota, United States$277Mlast round Apr 2026
  42. 42SocureSocure is a prominent American technology company that specializes in AI-driven digital identity verification, fraud prevention, and risk decisioning.

    Socure is a prominent American technology company that specializes in AI-driven digital identity verification, fraud prevention, and risk decisioning.

    Founded 2012Incline Village, United States$273Mlast round Aug 2026
  43. 43RADARFounded -United States$269Mlast round May 2026
  44. 44AuraFounded -United States$264Mlast round Feb 2026
  45. 45ClumioClumio is a cloud-native backup-as-a-service company based in Santa Clara, California.

    Clumio is a cloud-native backup-as-a-service company based in Santa Clara, California.

    Founded 1996Tinton Falls, United States$261Mlast round Feb 2024
  46. 46CriticalstartCritical Start is a cybersecurity company based in Plano, Texas, founded in 2012 by Rob Davis.

    Critical Start is a cybersecurity company based in Plano, Texas, founded in 2012 by Rob Davis.

    Founded 2012Plano, United States$255Mlast round Apr 2022
  47. 47ThreatLockerThreatLocker is a leader in Zero Trust endpoint security, providing advanced cybersecurity solutions to protect servers, endpoints, and digital environments fro

    ThreatLocker is a leader in Zero Trust endpoint security, providing advanced cybersecurity solutions to protect servers, endpoints, and digital environments fro

    Founded 2017Orlando, United States$250Mlast round Jul 2026
  48. 48Horizon3Horizon3 invest in long-term growth companies with a strong customer and user focus integrated into profitable and scalable business models.

    Horizon3 invest in long-term growth companies with a strong customer and user focus integrated into profitable and scalable business models.

    Founded 2022United States$250Mlast round Aug 2026
  49. 49PindropPindrop is an American cybersecurity company founded in 2011, headquartered in Atlanta, Georgia, with additional offices in London and Toronto.

    Pindrop is an American cybersecurity company founded in 2011, headquartered in Atlanta, Georgia, with additional offices in London and Toronto.

    Founded 2011Atlanta, United States$237Mlast round Jul 2024
  50. 50OostoOosto is a global Visual AI company that specializes in real-time video analytics.

    Oosto is a global Visual AI company that specializes in real-time video analytics.

    Founded 2015New York, United States$235Mlast round Jul 2021
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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