# Top 50 Cybersecurity Startups Founded in 2019 by Funding (2026)

> The 50 best-funded cybersecurity startups founded in 2019, ranked by total funding raised: $1.8B combined.

Source: https://millionrounds.com/top-lists/cybersecurity-startups-founded-2019 (Millionrounds; every figure on the page links to its filing or article)

- 1 [**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
- 2 [**Blackwall** Blackwall is an AI-enabled security infrastructure company based in Tallinn, Estonia.](https://millionrounds.com/company/blackwall) Blackwall is an AI-enabled security infrastructure company based in Tallinn, Estonia. *Founded* 2019 Tallinn, United Kingdom **$162M** last round Oct 2026
- 3 [**Tailscale** Tailscale is a technology company founded in 2019 by former Google engineers, including CEO Avery Pennarun.](https://millionrounds.com/company/tailscale) Tailscale is a technology company founded in 2019 by former Google engineers, including CEO Avery Pennarun. *Founded* 2019 Toronto, Canada **$161M** last round Apr 2025
- 4 [**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
- 5 [**Horizon3.ai** Horizon3.ai is a cybersecurity startup based in San Francisco, California, founded in 2019 by a team of cybersecurity veterans, including former U.S.](https://millionrounds.com/company/horizon3-ai) Horizon3.ai is a cybersecurity startup based in San Francisco, California, founded in 2019 by a team of cybersecurity veterans, including former U.S. *Founded* 2019 San Francisco, United States **$100M** last round Jan 2026
- 6 [**WorkOS** WorkOS is a developer platform based in San Francisco that provides modern APIs and SDKs for B2B SaaS companies.](https://millionrounds.com/company/workos) WorkOS is a developer platform based in San Francisco that provides modern APIs and SDKs for B2B SaaS companies. *Founded* 2019 San Francisco, United States **$100M** last round Mar 2026
- 7 [**Apiiro** Apiiro is a cybersecurity company focused on protecting AI-driven development environments.](https://millionrounds.com/company/apiiro) Apiiro is a cybersecurity company focused on protecting AI-driven development environments. *Founded* 2019 New York, United States **$100M** last round Nov 2022
- 8 [**Shift5** Shift5 is an Operational Intelligence and cybersecurity company focused on enhancing the safety and efficiency of operational technology systems in the defense,](https://millionrounds.com/company/shift5) Shift5 is an Operational Intelligence and cybersecurity company focused on enhancing the safety and efficiency of operational technology systems in the defense, *Founded* 2019 Arlington, United States **$78M** last round Sept 2025
- 9 [**Brinc Drones** BRINC Drones is an American technology company based in Seattle, founded in 2017 and incorporated in 2019.](https://millionrounds.com/company/brinc-drones) BRINC Drones is an American technology company based in Seattle, founded in 2017 and incorporated in 2019. *Founded* 2019 Seattle, United States **$75M** last round Apr 2025
- 10 [**Skyflow** Skyflow is a data privacy technology company based in Palo Alto, founded in 2019.](https://millionrounds.com/company/skyflow) Skyflow is a data privacy technology company based in Palo Alto, founded in 2019. *Founded* 2019 Palo Alto, United States **$72M** last round Mar 2024
- 11 [**TXOne Networks** TXOne Networks is a cybersecurity company focused on protecting operational technology (OT) environments, particularly industrial control systems.](https://millionrounds.com/company/txone-networks) TXOne Networks is a cybersecurity company focused on protecting operational technology (OT) environments, particularly industrial control systems. *Founded* 2019 Taiwan **$51M** last round May 2024
- 12 [**Stairwell** Stairwell is a cybersecurity company founded in 2019 and based in Sunnyvale, California.](https://millionrounds.com/company/stairwell) Stairwell is a cybersecurity company founded in 2019 and based in Sunnyvale, California. *Founded* 2019 Sunnyvale, United States **$45M** last round Oct 2022
- 13 [**Twingate** Twingate is a cybersecurity company founded in 2019 by Tony Huie, Alex Marshall, and Lior Rozner.](https://millionrounds.com/company/twingate) Twingate is a cybersecurity company founded in 2019 by Tony Huie, Alex Marshall, and Lior Rozner. *Founded* 2019 Redwood City, United States **$42M** last round Apr 2022
- 14 [**360 Privacy** 360 Privacy is the leader in digital exposure reduction for enterprises, executives, and high-profile individuals.](https://millionrounds.com/company/360-privacy) 360 Privacy is the leader in digital exposure reduction for enterprises, executives, and high-profile individuals. *Founded* 2019 Nashville, United States **$36M** last round Mar 2025
- 15 [**SecZetta** SecZetta providea product for managing 3rd party identity risk](https://millionrounds.com/company/seczetta) SecZetta providea product for managing 3rd party identity risk *Founded* 2019 Fall River, United States **$31M** last round Sept 2021
- 16 [**Evervault** Evervault is a Dublin-based cybersecurity and data infrastructure company founded in 2019.](https://millionrounds.com/company/evervault) Evervault is a Dublin-based cybersecurity and data infrastructure company founded in 2019. *Founded* 2019 New York, United States **$28M** last round Mar 2026
- 17 [**QuSecure** QuSecure is a cybersecurity company based in San Mateo, California, specializing in post-quantum cryptography and quantum-safe security.](https://millionrounds.com/company/qusecure) QuSecure is a cybersecurity company based in San Mateo, California, specializing in post-quantum cryptography and quantum-safe security. *Founded* 2019 San Mateo, United States **$28M** last round Feb 2025
- 18 [**ThreatAware** ThreatAware is a London-based cybersecurity startup that specializes in Cyber Asset Attack Surface Management (CAASM) and Cyber Hygiene.](https://millionrounds.com/company/threataware) ThreatAware is a London-based cybersecurity startup that specializes in Cyber Asset Attack Surface Management (CAASM) and Cyber Hygiene. *Founded* 2019 London, United Kingdom **$25M** last round Feb 2026
- 19 [**StrikeReady** StrikeReady is a California-based SaaS platform that engages, supports, and informs the defender with reasoning, knowledge, and automation for businesses.](https://millionrounds.com/company/strikeready) StrikeReady is a California-based SaaS platform that engages, supports, and informs the defender with reasoning, knowledge, and automation for businesses. *Founded* 2019 Fremont, United States **$24M** last round Sept 2026
- 20 [**RangeForce** RangeForce is a SaaS-based human cyber defense readiness platform that continuously develops defensive skills against the latest threats.](https://millionrounds.com/company/rangeforce) RangeForce is a SaaS-based human cyber defense readiness platform that continuously develops defensive skills against the latest threats. *Founded* 2019 Manassas, Estonia **$22M** last round Mar 2023
- 21 [**Confirma** Confirma specializes in technological solutions for biometrics and digital signatures to transform onboarding and contracting processes.](https://millionrounds.com/company/confirma) Confirma specializes in technological solutions for biometrics and digital signatures to transform onboarding and contracting processes. *Founded* 2019 United States **$21M** last round Jan 2008
- 22 [**Alethea** Alethea, also known as Alethea Group, is a technology company based in Washington, D.C., founded in 2019.](https://millionrounds.com/company/alethea) Alethea, also known as Alethea Group, is a technology company based in Washington, D.C., founded in 2019. *Founded* 2019 Washington, United States **$20M** last round Apr 2024
- 23 [**Scope Security** Scope provides managed detection and response to protect hospitals, clinics and large provider systems from cyber attacks.](https://millionrounds.com/company/scope-security) Scope provides managed detection and response to protect hospitals, clinics and large provider systems from cyber attacks. *Founded* 2019 San Francisco, United States **$20M** last round Feb 2022
- 24 [**Open Raven** Open Raven is the data security posture management company that prevents leaks, breaches, and compliance incidents.](https://millionrounds.com/company/open-raven) Open Raven is the data security posture management company that prevents leaks, breaches, and compliance incidents. *Founded* 2019 Los Angeles, United States **$20M** last round Sept 2022
- 25 [**Nucleus Security** Nucleus Security is an enterprise cybersecurity company that specializes in Unified Vulnerability and Exposure Management (UVEM).](https://millionrounds.com/company/nucleus-security) Nucleus Security is an enterprise cybersecurity company that specializes in Unified Vulnerability and Exposure Management (UVEM). *Founded* 2019 Sarasota, United States **$20M** last round Feb 2026
- 26 [**Accurics** Accurics is a cloud cyber resilience specialist that enables resilient, self-healing cloud-native infrastructure.](https://millionrounds.com/company/accurics) Accurics is a cloud cyber resilience specialist that enables resilient, self-healing cloud-native infrastructure. *Founded* 2019 Pleasanton **$15M** last round Oct 2020
- 27 [**Ethyca** Ethyca is a privacy technology company based in New York, with a European headquarters and R&D center in Dublin.](https://millionrounds.com/company/ethyca) Ethyca is a privacy technology company based in New York, with a European headquarters and R&D center in Dublin. *Founded* 2019 New York, United States **$14M** last round Dec 2024
- 28 [**Starboard Maritime Intelligence** Starboard is a subscription-based software that offers teams an overview of maritime activity as well as robust analytical tools.](https://millionrounds.com/company/starboard-maritime-intelligence) Starboard is a subscription-based software that offers teams an overview of maritime activity as well as robust analytical tools. *Founded* 2019 Wellington, New Zealand **$14M** last round Sept 2025
- 29 [**TrustLogix** TrustLogix equips businesses with privacy solutions through data security protection and governance.](https://millionrounds.com/company/trustlogix) TrustLogix equips businesses with privacy solutions through data security protection and governance. *Founded* 2019 Mountain View, United States **$13M** last round Jan 2025
- 30 [**Trusted CI** Trusted CI is a NSF Cybersecurity Center of Excellence (CCoE).](https://millionrounds.com/company/trusted-ci) Trusted CI is a NSF Cybersecurity Center of Excellence (CCoE). *Founded* 2019 Illinois City **$13M** last round Sept 2019
- 31 [**CryptoNext Security** CryptoNext Security is a Paris-based software vendor founded in 2019, specializing in post-quantum cryptography (PQC) and crypto-agility solutions.](https://millionrounds.com/company/cryptonext-security) CryptoNext Security is a Paris-based software vendor founded in 2019, specializing in post-quantum cryptography (PQC) and crypto-agility solutions. *Founded* 2019 Paris, France **$12M** last round Nov 2023
- 32 [**Dasera** Dasera is a DSPM platform that automates data security and governance controls to minimize risk across your data lifecycle.](https://millionrounds.com/company/dasera) Dasera is a DSPM platform that automates data security and governance controls to minimize risk across your data lifecycle. *Founded* 2019 Mountain View, United States **$12M** last round Apr 2023
- 33 [**Metabase Q** Metabase Q is a provider of cybersecurity solutions aimed at minimizing security risks by employing agile and inventive technologies.](https://millionrounds.com/company/metabase-q) Metabase Q is a provider of cybersecurity solutions aimed at minimizing security risks by employing agile and inventive technologies. *Founded* 2019 San Francisco, United States **$11M** last round Jul 2024
- 34 [**VanishID** VanishID is a cybersecurity company based in Bethesda, Maryland, founded in 2019.](https://millionrounds.com/company/vanishid) VanishID is a cybersecurity company based in Bethesda, Maryland, founded in 2019. *Founded* 2019 Washington, United States **$10M** last round Apr 2025
- 35 [**Portal26** Portal26 is an enterprise-focused platform specializing in AI Trust, Risk, and Security Management (AI TRiSM).](https://millionrounds.com/company/portal26) Portal26 is an enterprise-focused platform specializing in AI Trust, Risk, and Security Management (AI TRiSM). *Founded* 2019 San Jose, United States **$9.0M** last round Nov 2025
- 36 [**oak9** oak9 is a cybersecurity SaaS Platform for Developers.](https://millionrounds.com/company/oak9) oak9 is a cybersecurity SaaS Platform for Developers. *Founded* 2019 Chicago, United States **$8.0M** last round Jun 2022
- 37 [**Tenchi Security** Tenchi Security is a Brazilian cybersecurity company founded in 2019, specializing in Third-Party Cyber Risk Management (TPCRM) and Third-Party Security Posture](https://millionrounds.com/company/tenchi-security) Tenchi Security is a Brazilian cybersecurity company founded in 2019, specializing in Third-Party Cyber Risk Management (TPCRM) and Third-Party Security Posture *Founded* 2019 Barueri, Brazil **$7.0M** last round Feb 2024
- 38 [**ANOZR WAY** ANOZR WAY is a French cybersecurity software company founded in 2019 and based in Cesson-Sévigné, France.](https://millionrounds.com/company/anozr-way) ANOZR WAY is a French cybersecurity software company founded in 2019 and based in Cesson-Sévigné, France. *Founded* 2019 Cesson-Sevigne, France **$6.6M** last round Mar 2024
- 39 [**Tenacy** Tenacy is a French technology company founded in 2019, based in Lyon, specializing in Cybersecurity Governance, Risk, and Compliance (GRC) solutions.](https://millionrounds.com/company/tenacy) Tenacy is a French technology company founded in 2019, based in Lyon, specializing in Cybersecurity Governance, Risk, and Compliance (GRC) solutions. *Founded* 2019 Lyon, France **$6.5M** last round Dec 2023
- 40 [**DataMasque** DataMasque is a data security and software development company based in Auckland, New Zealand.](https://millionrounds.com/company/datamasque) DataMasque is a data security and software development company based in Auckland, New Zealand. *Founded* 2019 Auckland, New Zealand **$5.6M** last round Jun 2026
- 41 [**R2 Wireless** R2 Wireless offers low-cost RF Situation Awareness and Terrain Dominance capabilities to safeguard key facilities against intrusions.](https://millionrounds.com/company/r2-wireless) R2 Wireless offers low-cost RF Situation Awareness and Terrain Dominance capabilities to safeguard key facilities against intrusions. *Founded* 2019 Givat Haim **$5.0M** last round Mar 2026
- 42 [**Ory Corp** Ory Corp makes and operates Ory Cloud for Zero Trust Security based on Ory's open-source identity, authx, and permission](https://millionrounds.com/company/ory-corp) Ory Corp makes and operates Ory Cloud for Zero Trust Security based on Ory's open-source identity, authx, and permission *Founded* 2019 Scottsdale, United States **$5.0M** last round Apr 2024
- 43 [**Internet 2.0** Internet 2.0 is a cybersecurity company based in Barton, Australian Capital Territory, founded in 2019.](https://millionrounds.com/company/internet-2-0) Internet 2.0 is a cybersecurity company based in Barton, Australian Capital Territory, founded in 2019. *Founded* 2019 Canberra, Australia **$5.0M** last round Sept 2022
- 44 [**Allthenticate** Allthenticate is a Houston-based cybersecurity startup founded in 2019.](https://millionrounds.com/company/allthenticate) Allthenticate is a Houston-based cybersecurity startup founded in 2019. *Founded* 2019 Houston, United States **$4.8M** last round Feb 2026
- 45 [**First Watch - Cyber Security** First Watch - Cyber Security is a New Zealand-based company founded in 2019, specializing in operational technology (OT) cybersecurity.](https://millionrounds.com/company/first-watch-cyber-security) First Watch - Cyber Security is a New Zealand-based company founded in 2019, specializing in operational technology (OT) cybersecurity. *Founded* 2019 Hamilton, New Zealand **$4.2M** last round Nov 2021
- 46 [**Perygee** Perygee is an integration and automation platform that connects that dots between your existing software and people systems](https://millionrounds.com/company/perygee) Perygee is an integration and automation platform that connects that dots between your existing software and people systems *Founded* 2019 Boston, United States **$4.0M** last round Jan 2025
- 47 [**BLOCKAPT** BLOCKAPT was created in 2019 and has been highly recognised for its disruptive, agile technology which unifies disparate end point solutions into a simplified,](https://millionrounds.com/company/blockapt) BLOCKAPT was created in 2019 and has been highly recognised for its disruptive, agile technology which unifies disparate end point solutions into a simplified, *Founded* 2019 Southwark, United Kingdom **$3.6M** last round Mar 2026
- 48 [**Invary** Invary is a cybersecurity company founded in 2019 and based in Lawrence, Kansas.](https://millionrounds.com/company/invary) Invary is a cybersecurity company founded in 2019 and based in Lawrence, Kansas. *Founded* 2019 Lawrence, United States **$3.5M** last round Feb 2025
- 49 [**SuperTokens** SuperTokens is an open-source user authentication and session management platform founded in 2019.](https://millionrounds.com/company/supertokens) SuperTokens is an open-source user authentication and session management platform founded in 2019. *Founded* 2019 San Francisco, United States **$3.5M** last round Jan 2023
- 50 [**Nucleon Security** Enhanced Cybersecurity for understaffed teams.](https://millionrounds.com/company/nucleon-security) Enhanced Cybersecurity for understaffed teams. *Founded* 2019 Paris, Morocco **$3.5M** last round Sept 2025

**Total funding** how the list is ranked

**15 November 2026** updated nightly

**Rounds we track** source: Millionrounds

Companies founded in 2019 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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