Top list · Sunnyvale

Cybersecurity startups in Sunnyvale

14 cybersecurity startups in Sunnyvale have raised money in rounds we track. These are the 14 that have raised the most, $1.4B between them.

$1.4Braised by these 14
14on our record in all
Illumioraised the most
  1. 1IllumioIllumio 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
  2. 2CylakeCylake 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
  3. 3SafeBreachSafeBreach is a cybersecurity company founded in 2014, known for pioneering the Breach and Attack Simulation (BAS) category.

    SafeBreach is a cybersecurity company founded in 2014, known for pioneering the Breach and Attack Simulation (BAS) category.

    Founded 2014Sunnyvale, United States$88Mlast round Nov 2021
  4. 4StraikerStraiker is an AI security company based in Sunnyvale, California, founded in 2024.

    Straiker is an AI security company based in Sunnyvale, California, founded in 2024.

    Founded 2024Sunnyvale, United States$85Mlast round Jun 2026
  5. 5ProofpointWe provide the most effective cybersecurity and compliance solutions to protect people on every channel including email, the web, the cloud, and social media.

    We provide the most effective cybersecurity and compliance solutions to protect people on every channel including email, the web, the cloud, and social media.

    Founded 2002Sunnyvale, United States$79Mlast round Feb 2008
  6. 6JumioJumio is an AI platform that enables users to establish their identity remotely to protect against fraud and other financial crime.

    Jumio is an AI platform that enables users to establish their identity remotely to protect against fraud and other financial crime.

    Founded 2010Sunnyvale, United States$52Mlast round Aug 2016
  7. 7Coram AICoram AI is an AI-native physical security platform that integrates video surveillance, access control, and emergency response into a single system.

    Coram AI is an AI-native physical security platform that integrates video surveillance, access control, and emergency response into a single system.

    Founded 2022Sunnyvale, United States$49Mlast round Jun 2026
  8. 8StairwellStairwell is a cybersecurity company founded in 2019 and based in Sunnyvale, California.

    Stairwell is a cybersecurity company founded in 2019 and based in Sunnyvale, California.

    Founded 2019Sunnyvale, United States$45Mlast round Oct 2022
  9. 9RapidFortRAPIDFORT is a cybersecurity company based in Sunnyvale, California, specializing in Software Supply Chain Security and Software Attack Surface Management (SASM).

    RAPIDFORT is a cybersecurity company based in Sunnyvale, California, specializing in Software Supply Chain Security and Software Attack Surface Management (SASM).

    Founded 2020Sunnyvale, United States$42Mlast round Feb 2026
  10. 10DecruDecru was a storage security company based in Redwood City, California, founded in 2001.

    Decru was a storage security company based in Redwood City, California, founded in 2001.

    Founded -Sunnyvale, United States$40Mlast round Aug 2002
  11. 11BlueFlag SecurityBlueFlag Security is an identity-based developer security company founded in 2022 and based in Sunnyvale, California.

    BlueFlag Security is an identity-based developer security company founded in 2022 and based in Sunnyvale, California.

    Founded 2022Sunnyvale, United States$24Mlast round Mar 2026
  12. 12Identity EnginesFounded -Sunnyvale, United States$22Mlast round May 2006
  13. 13ArmorbloxArmorblox uses deep learning and natural language technologies to protect enterprise communications.

    Armorblox uses deep learning and natural language technologies to protect enterprise communications.

    Founded 2017Sunnyvale, United States$17Mlast round Sept 2022
  14. 14AurvaAurva is an AI-powered data security platform designed for high-scale enterprises and cloud-first organizations.

    Aurva is an AI-powered data security platform designed for high-scale enterprises and cloud-first organizations.

    Founded 2023Sunnyvale, United States$2.1Mlast round Apr 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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