# Top 12 Cybersecurity Startups in Washington by Funding (2026)

> The 12 best-funded cybersecurity startups in Washington, ranked by total funding raised: $366M combined.

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

- 1 [**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
- 2 [**Virtru** Virtru is a leader in data privacy, security, and encryption, focusing on Zero Trust and data-centric security.](https://millionrounds.com/company/virtru) Virtru is a leader in data privacy, security, and encryption, focusing on Zero Trust and data-centric security. *Founded* 2012 Washington, United States **$89M** last round Jul 2025
- 3 [**Barkly** Barkly is a cybersecurity company based in Boston, Massachusetts, specializing in endpoint protection.](https://millionrounds.com/company/barkly) Barkly is a cybersecurity company based in Boston, Massachusetts, specializing in endpoint protection. *Founded* 2015 Washington, United States **$23M** last round Jan 2017
- 4 [**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
- 5 [**AuthMind** AuthMind is an identity security company founded in 2020 by cybersecurity experts Shlomi Yanai and Ankur Panchbudhe.](https://millionrounds.com/company/authmind) AuthMind is an identity security company founded in 2020 by cybersecurity experts Shlomi Yanai and Ankur Panchbudhe. *Founded* 2020 Washington, United States **$19M** last round Apr 2025
- 6 [**Preempt** PREEMPT specializes in mediated disputes, entrepreneurship, consulting, training, and hostile work environment assessments.](https://millionrounds.com/company/preempt) PREEMPT specializes in mediated disputes, entrepreneurship, consulting, training, and hostile work environment assessments. *Founded* 1998 Washington, United States **$18M** last round Jun 2018
- 7 [**DNSFilter** DNSFilter is a cybersecurity company that specializes in protective DNS solutions, AI-driven content filtering, and threat protection.](https://millionrounds.com/company/dnsfilter) DNSFilter is a cybersecurity company that specializes in protective DNS solutions, AI-driven content filtering, and threat protection. *Founded* 2015 Washington, United States **$15M** last round Aug 2023
- 8 [**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
- 9 [**Tidal Cyber** Tidal Cyber is a cybersecurity company based in Reston, Virginia, founded in 2022 by veterans from MITRE.](https://millionrounds.com/company/tidal-cyber) Tidal Cyber is a cybersecurity company based in Reston, Virginia, founded in 2022 by veterans from MITRE. *Founded* 2022 Washington, United States **$10M** last round Sept 2025
- 10 [**Nisos** Nisos is a managed intelligence and investigations firm that provides active defense technology-enabled services and products.](https://millionrounds.com/company/nisos) Nisos is a managed intelligence and investigations firm that provides active defense technology-enabled services and products. *Founded* 2015 Washington, United States **$7.6M** last round Dec 2022
- 11 [**HyperQube** HyperQube is a cybersecurity and virtual infrastructure orchestration company based in Arlington, Virginia.](https://millionrounds.com/company/hyperqube) HyperQube is a cybersecurity and virtual infrastructure orchestration company based in Arlington, Virginia. *Founded* 2016 Washington, United States **$2.5M** last round Aug 2020
- 12 [**AntiraTech** AntiraTech is a high-tech company that specializes in the areas of security, offense, and defense in actual conflict.](https://millionrounds.com/company/antiratech) AntiraTech is a high-tech company that specializes in the areas of security, offense, and defense in actual conflict. *Founded* 2018 Washington, United States **$1.4M** last round Jun 2023

**Total funding** how the list is ranked

**15 November 2026** updated nightly

**Rounds we track** source: 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.

## Who backed them?

Open any company for its rounds and investors, or search the investors who back cybersecurity startups in Washington in the app, with filters, lists and exports.

[Find their investors](https://millionrounds.com/login?join=1&next=/app/investors)[All top lists](https://millionrounds.com/top-lists)

## More cybersecurity lists

[See all](https://millionrounds.com/top-lists?t=Cybersecurity)

[*H* *K* *V* **Cybersecurity startups in the United States** 1,085 companies · $29B](https://millionrounds.com/top-lists/cybersecurity-startups-united-states)[*T* *Q* *E* **Cybersecurity startups in Europe** 405 companies · $5.7B](https://millionrounds.com/top-lists/cybersecurity-startups-europe)[*H* *K* *F* **Cybersecurity startups that raised in 2026** 262 companies · $13B in 2026](https://millionrounds.com/top-lists/cybersecurity-startups-raised-2026)[*T* *Q* *D* **Cybersecurity startups in the United Kingdom** 164 companies · $3.9B](https://millionrounds.com/top-lists/cybersecurity-startups-united-kingdom)[*D* *C* *C* **Cybersecurity startups in San Francisco** 112 companies · $4.0B](https://millionrounds.com/top-lists/cybersecurity-startups-san-francisco)[*H* *I* *C* **Cybersecurity startups founded in 2020** 96 companies · $4.7B](https://millionrounds.com/top-lists/cybersecurity-startups-founded-2020)[*C* *Q* *F* **Cybersecurity startups founded in 2021** 92 companies · $3.3B](https://millionrounds.com/top-lists/cybersecurity-startups-founded-2021)[*QC* *E* *T* **Cybersecurity startups founded in 2018** 89 companies · $2.4B](https://millionrounds.com/top-lists/cybersecurity-startups-founded-2018)

## More lists for Washington

[See all](https://millionrounds.com/top-lists?r=Washington)

[*VG* *ME* *TW* **Startups in Washington** 266 companies · $24B](https://millionrounds.com/top-lists/startups-washington)[*A* *EA* *A* **AI startups in Washington** 33 companies · $823M](https://millionrounds.com/top-lists/ai-startups-washington)[*VE* *V* *NS* **IT Services startups in Washington** 29 companies · $205M](https://millionrounds.com/top-lists/it-services-startups-washington)[*M* *SL* *EA* **Big Data & Analytics startups in Washington** 21 companies · $1.2B](https://millionrounds.com/top-lists/big-data-startups-washington)[*E* *SD* *S* **Healthcare startups in Washington** 19 companies · $182M](https://millionrounds.com/top-lists/healthcare-startups-washington)[*EA* *O* *ST* **Software startups in Washington** 13 companies · $264M](https://millionrounds.com/top-lists/software-startups-washington)