The 25 largest cybersecurity companies in Washington State (2026 list)

#	Company	Industry	Headquarters	Employees	Founded
1	Microsoft microsoft.com Develops and sells software, hardware, and cloud services, including the Windows operating system and Office suite, to improve productivity and digital experiences	Software Development	🇺🇸 Redmond	233,562	n/a
2	Veeam Software veeam.com Provides data backup, recovery, security, and intelligence solutions ensuring business continuity and data availability across hybrid cloud environments worldwide.	Software Development	🇺🇸 Seattle	7,308	2006
3	F5 f5.com It provides multi-cloud application services and security, optimizing and securing apps and APIs for organizations to enhance digital experiences.	IT Services and IT Consulting	🇺🇸 Seattle	6,192	n/a
4	Tanium tanium.com Leading the way in Endpoint Management, providing a Converged Endpoint Management platform to see, control, and protect all endpoints globally	Computer and Network Security	🇺🇸 Kirkland	2,341	2007
5	Absolute Security absolute.com Provides cyber resilience platform ensuring secure connections for mobile/hybrid workforces and rapid recovery from cyber disruptions through embedded firmware security.	Computer and Network Security	🇺🇸 Seattle	1,249	n/a
6	WatchGuard Technologies watchguard.com Provides unified cybersecurity solutions for managed service providers, offering network security, endpoint protection, multi-factor authentication, and secure Wi-Fi services.	Computer and Network Security	🇺🇸 Seattle	1,218	1996
7	ExtraHop extrahop.com Turns network data into actionable insights, providing visibility and analyzing behavior to intercept evasive risks for security, performance, and resilience.	Computer and Network Security	🇺🇸 Seattle	762	2007
8	Microsoft Intune microsoft.com Endpoint management and security solutions for hybrid workforces with a focus on simplifying processes, enhancing user experiences, and strengthening Zero Trust architecture	IT Services and IT Consulting	🇺🇸 Redmond	719	n/a
9	Chainguard chainguard.dev The company specializes in providing a secure platform for open source software, with a focus on security and cloud native development	Computer and Network Security	🇺🇸 Kirkland	708	2021
10	Cloud Security Alliance cloudsecurityalliance.org A non-profit organization promoting best practices for cloud security, providing education on cloud computing security, and promoting industry collaboration	Computer and Network Security	🇺🇸 Seattle	536	2008
11	Auth0 auth0.com modern identity platform for secure access to any application, for any user; safeguarding billions of login transactions each month	IT Services and IT Consulting	🇺🇸 Bellevue	362	2013
12	Aquera aquera.com Aquera automates worker onboarding and access management by integrating HR and IT applications, ensuring security, productivity, and cost-efficiency for organizations worldwide	Software Development	🇺🇸 Seattle	361	2016
13	CommandLink commandlink.com Provides a unified global infrastructure platform combining connectivity, security, voice, and AI with extensive carrier aggregation and dedicated support for enterprise IT.	Software Development	🇺🇸 Bothell	299	2012
14	Wowrack wowrack.com A premier cloud service provider offering Managed Hosting, Dedicated Servers, Colocation, Virtualization, Bandwidth Delivery, and Managed Services to global companies	IT Services and IT Consulting	🇺🇸 Seattle	195	2001
15	Ekata, a Mastercard company ekata.com A global company offering identity verification solutions powered by data science and machine learning to combat fraud and create seamless customer experiences	IT Services and IT Consulting	🇺🇸 Seattle	128	n/a
16	wolfSSL wolfssl.com Provides best-tested cryptography, embedded security solutions emphasizing speed, size, portability, features, and standards compliance. Secures over 2 billion connections globally.	Software Development	🇺🇸 Edmonds	52	1999
17	adaQuest adaquest.com A cybersecurity and compliance partner specializing in cloud security, data protection, Microsoft EMS products, workload optimization, and strategic cloud migration solutions for organizations globally	IT Services and IT Consulting	🇺🇸 Bellevue	49	n/a
18	BEMO bemopro.com A remote company specializing in Managed IT, Cybersecurity, and Microsoft ecosystem migrations to prevent cyberattacks and ensure secure business operations	Data Security Software Products	🇺🇸 Redmond	48	2010
19	AuthenticID, An Incode Company authenticid.com An AI-driven solution for accurate, secure identity verification, reducing fraud losses, streamlining customer onboarding, and increasing conversion rates for various companies worldwide	IT Services and IT Consulting	🇺🇸 Kirkland	48	2001
20	Twine Security twinesecurity.com Develop AI digital employees to automate identity and access management tasks, reducing workload and supporting cybersecurity teams' objectives.	Computer and Network Security	🇺🇸 Bellevue	36	n/a
21	Virtuosity Consulting Group - An InterVision Company intervision.com A technology services company focused on executing, automating, and managing critical business and technology initiatives, with a strong emphasis on innovation and teamwork	IT Services and IT Consulting	🇺🇸 Bellevue	31	2008
22	Excelerate Systems exceleratesystems.com Providing IT products and services focused on managing IT operations infrastructure and ensuring compliance with industry regulatory standards globally.	IT Services and IT Consulting	🇺🇸 Redmond	11	2007
23	WhoIAM whoiam.ai Identity and authentication company providing solutions for major corporations and governments in verification, identification, and authentication for consumer and enterprise applications	Software Development	🇺🇸 Bellevue	10	2017
24	InTWO Seattle intwo.cloud A world-leading provider of cloud technology services, helping businesses transform with integrated cloud, collaboration, and application solutions for competitive advantage	IT Services and IT Consulting	🇺🇸 Redmond	9	1989
25	Intrinium torchlight.io An IT and Security Solutions company offering consulting, managed services, and transformative solutions to businesses, ensuring secure and efficient operations	IT Services and IT Consulting	🇺🇸 Spokane Valley	7	2007

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Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 2, 2026.

The 25 largest cybersecurity companies in Washington State

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