# Top 50 Network Security Startups Worldwide by Funding (2026)

> The 50 best-funded network security startups worldwide, ranked by total funding raised: $13B combined.

Source: https://millionrounds.com/top-lists/network-security-startups (Millionrounds; every figure on the page links to its filing or article)

- 1 [**Keyfactor** Keyfactor is a global leader in digital trust, specializing in public key infrastructure (PKI) and crypto-agility solutions.](https://millionrounds.com/company/keyfactor) Keyfactor is a global leader in digital trust, specializing in public key infrastructure (PKI) and crypto-agility solutions. *Founded* 2001 Independence, United States **$1.1B** last round Jul 2026
- 2 [**Resilience** Resilience is a cyber risk company based in San Francisco, founded in 2016 by experts from military intelligence, insurance, and technology.](https://millionrounds.com/company/resilience) Resilience is a cyber risk company based in San Francisco, founded in 2016 by experts from military intelligence, insurance, and technology. *Founded* 2016 New York, United States **$860M** last round Oct 2025
- 3 [**Chainguard** Chainguard is a cybersecurity company founded in 2021, focused on software supply chain security.](https://millionrounds.com/company/chainguard) Chainguard is a cybersecurity company founded in 2021, focused on software supply chain security. *Founded* 2021 Kirkland, United States **$776M** last round Oct 2025
- 4 [**Fidium** Fidium was developed to defy consumer expectations of network and internet service providers.](https://millionrounds.com/company/fidium) Fidium was developed to defy consumer expectations of network and internet service providers. *Founded* 2021 Mattoon, United States **$665M** last round Mar 2026
- 5 [**Tanium** Tanium is a privately held company focused on Autonomous IT, specializing in cybersecurity and systems management.](https://millionrounds.com/company/tanium) Tanium is a privately held company focused on Autonomous IT, specializing in cybersecurity and systems management. *Founded* 2007 Kirkland, United States **$577M** last round May 2018
- 6 [**Illumio** Illumio is a cybersecurity company based in Sunnyvale, California, specializing in breach containment and Zero Trust segmentation.](https://millionrounds.com/company/illumio) Illumio is a cybersecurity company based in Sunnyvale, California, specializing in breach containment and Zero Trust segmentation. *Founded* 2013 Sunnyvale, United States **$558M** last round Jun 2021
- 7 [**ReliaQuest** ReliaQuest is a leading cybersecurity company based in Tampa, Florida, dedicated to enhancing enterprise security.](https://millionrounds.com/company/reliaquest) ReliaQuest is a leading cybersecurity company based in Tampa, Florida, dedicated to enhancing enterprise security. *Founded* 2007 Tampa, United States **$530M** last round Apr 2025
- 8 [**Exein** Exein is a global leader in embedded IoT cybersecurity, founded in 2018 and headquartered in Rome, Italy, with additional offices in the US, Germany, and Taiwan.](https://millionrounds.com/company/exein) Exein is a global leader in embedded IoT cybersecurity, founded in 2018 and headquartered in Rome, Italy, with additional offices in the US, Germany, and Taiwan. *Founded* 2018 Rome, Italy **$471M** last round Sept 2026
- 9 [**Arctic Wolf** Arctic Wolf helps companies end cyber risk by providing cloud-native security operations technology.](https://millionrounds.com/company/arctic-wolf) Arctic Wolf helps companies end cyber risk by providing cloud-native security operations technology. *Founded* 2012 Eden Prairie, United States **$401M** last round Oct 2022
- 10 [**Upwind Security** Upwind Security is a cloud security company founded in October 2022 and based in San Francisco, California, with research and development in Tel Aviv, Israel, a](https://millionrounds.com/company/upwind-security) Upwind Security is a cloud security company founded in October 2022 and based in San Francisco, California, with research and development in Tel Aviv, Israel, a *Founded* 2022 San Francisco, United States **$300M** last round Sept 2026
- 11 [**Lookout** Lookout, Inc.](https://millionrounds.com/company/lookout) Lookout, Inc. *Founded* 2007 Boston, United States **$282M** last round Feb 2015
- 12 [**Criticalstart** Critical Start is a cybersecurity company based in Plano, Texas, founded in 2012 by Rob Davis.](https://millionrounds.com/company/criticalstart) Critical Start is a cybersecurity company based in Plano, Texas, founded in 2012 by Rob Davis. *Founded* 2012 Plano, United States **$255M** last round Apr 2022
- 13 [**Abnormal AI** Abnormal AI, founded in 2018 by Evan Reiser and Sanjay Jeyakumar, is a leading AI-native cybersecurity company based in San Francisco, California.](https://millionrounds.com/company/abnormal-ai) Abnormal AI, founded in 2018 by Evan Reiser and Sanjay Jeyakumar, is a leading AI-native cybersecurity company based in San Francisco, California. *Founded* 2018 Las Vegas, United States **$250M** last round Aug 2024
- 14 [**ThreatLocker** ThreatLocker is a leader in Zero Trust endpoint security, providing advanced cybersecurity solutions to protect servers, endpoints, and digital environments fro](https://millionrounds.com/company/threatlocker) ThreatLocker is a leader in Zero Trust endpoint security, providing advanced cybersecurity solutions to protect servers, endpoints, and digital environments fro *Founded* 2017 Orlando, United States **$250M** last round Jul 2026
- 15 [**BlueVoyant** BlueVoyant is a cybersecurity firm based in New York City, founded in 2017 by experts from notable organizations like Morgan Stanley and the NSA.](https://millionrounds.com/company/bluevoyant) BlueVoyant is a cybersecurity firm based in New York City, founded in 2017 by experts from notable organizations like Morgan Stanley and the NSA. *Founded* 2017 New York, United States **$223M** last round Nov 2023
- 16 [**ZeroFOX** ZeroFox delivers proactive external cybersecurity to outfox the adversary and disrupt, identify, and dismantle threats outside the traditional corporate perimeter.](https://millionrounds.com/company/zerofox) ZeroFox delivers proactive external cybersecurity to outfox the adversary and disrupt, identify, and dismantle threats outside the traditional corporate perimeter. *Founded* 2013 Baltimore, United States **$210M** last round Aug 2022
- 17 [**Corelight** Corelight is a cybersecurity company based in San Francisco, founded in 2013.](https://millionrounds.com/company/corelight) Corelight is a cybersecurity company based in San Francisco, founded in 2013. *Founded* 2016 San Francisco, United States **$209M** last round Apr 2024
- 18 [**Deepwatch** Deepwatch secures the digital economy by protecting enterprise networks via its cloud security platform.](https://millionrounds.com/company/deepwatch) Deepwatch secures the digital economy by protecting enterprise networks via its cloud security platform. *Founded* 2019 Tampa, United States **$203M** last round Feb 2023
- 19 [**Exaforce** Exaforce is a cybersecurity software company based in San Jose, California, founded in 2023.](https://millionrounds.com/company/exaforce) Exaforce is a cybersecurity software company based in San Jose, California, founded in 2023. *Founded* 2023 San Jose, United States **$201M** last round May 2026
- 20 [**1Password** 1Password is a leader in cybersecurity and password management, founded in 2005 by Dave Teare and Roustem Karimov.](https://millionrounds.com/company/1password) 1Password is a leader in cybersecurity and password management, founded in 2005 by Dave Teare and Roustem Karimov. *Founded* 2005 Toronto, Canada **$200M** last round Nov 2019
- 21 [**Obsidian Security** Obsidian Security is a cybersecurity company founded in 2017, specializing in comprehensive security solutions for SaaS and enterprise AI environments.](https://millionrounds.com/company/obsidian-security) Obsidian Security is a cybersecurity company founded in 2017, specializing in comprehensive security solutions for SaaS and enterprise AI environments. *Founded* 2017 Palo Alto, United States **$191M** last round Aug 2026
- 22 [**Exabeam** Exabeam is a global leader in cybersecurity, based in Foster City, California.](https://millionrounds.com/company/exabeam) Exabeam is a global leader in cybersecurity, based in Foster City, California. *Founded* 2013 Broomfield, United States **$191M** last round Dec 2021
- 23 [**Blackpoint Cyber** Blackpoint Cyber is a private cybersecurity company founded in 2014, headquartered in Ellicott City, Maryland.](https://millionrounds.com/company/blackpoint-cyber) Blackpoint Cyber is a private cybersecurity company founded in 2014, headquartered in Ellicott City, Maryland. *Founded* 2014 Denver, United States **$190M** last round Jun 2023
- 24 [**Versa Networks** Versa Networks, founded in 2012 and based in Santa Clara, California, is a leader in Secure Access Service Edge (SASE) solutions.](https://millionrounds.com/company/versa-networks) Versa Networks, founded in 2012 and based in Santa Clara, California, is a leader in Secure Access Service Edge (SASE) solutions. *Founded* 2012 Santa Clara, United States **$177M** last round Oct 2022
- 25 [**7AI** 7AI is a Boston-based cybersecurity company that has developed the first agentic security platform.](https://millionrounds.com/company/7ai) 7AI is a Boston-based cybersecurity company that has developed the first agentic security platform. *Founded* 2024 Boston, United States **$166M** last round Dec 2025
- 26 [**MobileIron** MobileIron offers a mobile-centric, zero trust security approach that verifies user, device, application, network, and security threat.](https://millionrounds.com/company/mobileiron) MobileIron offers a mobile-centric, zero trust security approach that verifies user, device, application, network, and security threat. *Founded* 2007 Mountain View, United States **$161M** last round Aug 2013
- 27 [**XBOW** XBOW is an autonomous offensive security platform that specializes in AI-driven cybersecurity solutions.](https://millionrounds.com/company/xbow) XBOW is an autonomous offensive security platform that specializes in AI-driven cybersecurity solutions. *Founded* 2024 Seattle, United States **$155M** last round May 2026
- 28 [**BigID** BigID is a software company based in New York, founded in 2016 by Dimitri Sirota and Nimrod Vax.](https://millionrounds.com/company/bigid) BigID is a software company based in New York, founded in 2016 by Dimitri Sirota and Nimrod Vax. *Founded* 2016 New York, United States **$154M** last round Mar 2024
- 29 [**Venafi** CyberArk Certificate Manager is now Palo Alto Networks Next-Generation Trust Security.](https://millionrounds.com/company/venafi) CyberArk Certificate Manager is now Palo Alto Networks Next-Generation Trust Security. *Founded* - United States **$151M** last round Nov 2018
- 30 [**Sublime Security** Sublime Security is an adaptive, AI-powered cloud email security platform founded in 2019 in Washington, DC.](https://millionrounds.com/company/sublime-security) Sublime Security is an adaptive, AI-powered cloud email security platform founded in 2019 in Washington, DC. *Founded* 2019 Washington, United States **$150M** last round Nov 2025
- 31 [**Huntress** Huntress is an American cybersecurity company founded in 2015, focused on providing enterprise-grade security solutions to small and mid-sized businesses (SMBs)](https://millionrounds.com/company/huntress) Huntress is an American cybersecurity company founded in 2015, focused on providing enterprise-grade security solutions to small and mid-sized businesses (SMBs) *Founded* 2015 Columbia, United States **$150M** last round Jun 2024
- 32 [**Zscaler** Zscaler empowers enterprises to modernize security, streamline operations and help transform business through its innovative approach to cybersecurity.](https://millionrounds.com/company/zscaler) Zscaler empowers enterprises to modernize security, streamline operations and help transform business through its innovative approach to cybersecurity. *Founded* 2007 San Jose, United States **$148M** last round Sept 2015
- 33 [**Aqua Security** Aqua Security is a global leader in cloud-native security solutions, focusing on the protection of containerized and cloud-native applications throughout their lifecycle.](https://millionrounds.com/company/aqua-security) Aqua Security is a global leader in cloud-native security solutions, focusing on the protection of containerized and cloud-native applications throughout their lifecycle. *Founded* 2015 Burlington, United States **$147M** last round Jan 2024
- 34 [**SpyCloud** SpyCloud is a cybersecurity software company based in Austin, Texas, founded in 2016.](https://millionrounds.com/company/spycloud) SpyCloud is a cybersecurity software company based in Austin, Texas, founded in 2016. *Founded* 2016 Austin, United States **$139M** last round Aug 2023
- 35 [**Vectra AI** Vectra AI is a cybersecurity company based in San Jose, California, founded in 2011.](https://millionrounds.com/company/vectra-ai) Vectra AI is a cybersecurity company based in San Jose, California, founded in 2011. *Founded* 2011 San Jose, United States **$130M** last round Apr 2021
- 36 [**Virsec** Virsec Systems, Inc.](https://millionrounds.com/company/virsec) Virsec Systems, Inc. *Founded* 2015 San Jose, United States **$126M** last round Apr 2022
- 37 [**Semperis** Semperis is a developer of enterprise identity protection and cyber resilience for cross-cloud and hybrid environments.](https://millionrounds.com/company/semperis) Semperis is a developer of enterprise identity protection and cyber resilience for cross-cloud and hybrid environments. *Founded* 2014 Hoboken, United States **$125M** last round Jun 2024
- 38 [**Fortress Information Security** Fortress Information Security is an AI-powered cybersecurity company founded in 2015, based in Orlando, Florida.](https://millionrounds.com/company/fortress-information-security) Fortress Information Security is an AI-powered cybersecurity company founded in 2015, based in Orlando, Florida. *Founded* 2015 Orlando, United States **$125M** last round Apr 2022
- 39 [**Adaptive Security** Adaptive Security is the security layer for the AI era, protecting organizations and their employees from modern cyberattacks.](https://millionrounds.com/company/adaptive-security) Adaptive Security is the security layer for the AI era, protecting organizations and their employees from modern cyberattacks. *Founded* 2024 New York, United States **$124M** last round Dec 2025
- 40 [**Fortanix** Fortanix is a leader in data-first security and the largest provider of Confidential Computing, founded in 2016 and based in Santa Clara, California, with an of](https://millionrounds.com/company/fortanix) Fortanix is a leader in data-first security and the largest provider of Confidential Computing, founded in 2016 and based in Santa Clara, California, with an of *Founded* 2016 Santa Clara, United States **$121M** last round Aug 2022
- 41 [**Depthfirst** depthfirst is an applied AI lab and AI-native security platform founded in October 2024, based in San Francisco, California.](https://millionrounds.com/company/depthfirst) depthfirst is an applied AI lab and AI-native security platform founded in October 2024, based in San Francisco, California. *Founded* - San Francisco, United States **$120M** last round Apr 2026
- 42 [**Zafran Security** Zafran Security is a New York-based cybersecurity company founded in 2022, specializing in an AI-native Threat Exposure Management (TEM) Platform.](https://millionrounds.com/company/zafran-security) Zafran Security is a New York-based cybersecurity company founded in 2022, specializing in an AI-native Threat Exposure Management (TEM) Platform. *Founded* 2022 New York, United States **$120M** last round Jul 2026
- 43 [**Duo Security** Duo Security is a software company that provides network security software products and services.](https://millionrounds.com/company/duo-security) Duo Security is a software company that provides network security software products and services. *Founded* 2010 Ann Arbor, United States **$120M** last round Jan 2020
- 44 [**MicroVision** MICROVISION engages in innovative research in the fields of communication and network security.](https://millionrounds.com/company/microvision) MICROVISION engages in innovative research in the fields of communication and network security. *Founded* 2003 United States **$118M** last round Mar 2015
- 45 [**CyCognito** CyCognito is a US-based enterprise cybersecurity company founded in 2017, specializing in external attack surface management (EASM) and preemptive exposure management.](https://millionrounds.com/company/cycognito) CyCognito is a US-based enterprise cybersecurity company founded in 2017, specializing in external attack surface management (EASM) and preemptive exposure management. *Founded* 2017 Palo Alto, United States **$118M** last round Dec 2021
- 46 [**Veracode** Veracode provides cloud-based app intelligence and security verification services to protect critical data across software supply chains.](https://millionrounds.com/company/veracode) Veracode provides cloud-based app intelligence and security verification services to protect critical data across software supply chains. *Founded* 2006 Burlington, United States **$114M** last round Sept 2014
- 47 [**Cyberhaven** Cyberhaven is a cybersecurity company based in Palo Alto, California, founded in 2016 by a team of five PhD researchers from MIT and EPFL.](https://millionrounds.com/company/cyberhaven) Cyberhaven is a cybersecurity company based in Palo Alto, California, founded in 2016 by a team of five PhD researchers from MIT and EPFL. *Founded* 2016 Palo Alto, United States **$113M** last round Apr 2025
- 48 [**HackerOne** HackerOne is a leading cybersecurity platform that focuses on ethical hacking, vulnerability coordination, and attack resistance management.](https://millionrounds.com/company/hackerone) HackerOne is a leading cybersecurity platform that focuses on ethical hacking, vulnerability coordination, and attack resistance management. *Founded* 2012 San Francisco, United States **$110M** last round Apr 2022
- 49 [**Oligo Security** OLIGO Security is a cybersecurity company based in Tel Aviv, founded in 2022 by experts in military cyberintelligence.](https://millionrounds.com/company/oligo-security) OLIGO Security is a cybersecurity company based in Tel Aviv, founded in 2022 by experts in military cyberintelligence. *Founded* 2022 New York, United States **$110M** last round Aug 2026
- 50 [**Callsign** Callsign is a global technology company based in London, UK, that focuses on digital identity, fraud prevention, and behavioral authentication.](https://millionrounds.com/company/callsign) Callsign is a global technology company based in London, UK, that focuses on digital identity, fraud prevention, and behavioral authentication. *Founded* 2011 London, United Kingdom **$109M** last round Jun 2023

**Total funding** how the list is ranked

**15 November 2026** updated nightly

**Rounds we track** source: Millionrounds

Companies whose own description names this theme, ranked by the total they have raised in rounds we hold. Nobody pays to be on a list.

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