Top 30 Penetration Testing Companies in Seattle
The Best of December 2025Looking for a top penetration testing company in Seattle?
Having vulnerable security poses a threat to your organization. In an age where data has become some of the most important assets that your company will have, improving security measures is always a must. Penetration testing aims to solve this problem by simulating real-life security breaches without the risk of an actual cyberattack. Also known as ethical hacking, this process helps identify weak spots within your IT network infrastructure by applying methods that real attackers would use.
A penetration testing company can assist you in determining your security vulnerabilities. Doing so will provide you with the information that you need to fortify your cybersecurity. Hiring the right penetration testing company can give you a significant advantage in safekeeping your virtual assets.
To assist you in your search for a partner, we’ve compiled this list of the top penetration testing services in Seattle. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Seattle Penetration Testing Services
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1$1,000+50 - 249 employeesBothell, WAISOutsource is an IT managed services company. The midsize Bothell, Washington-based company was established in 1992. Their team specializes in IT managed services, IT strategy consulting, Cybersecurity, cloud consulting & SI, and more.Read More
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2$1,000+250 - 999 employeesSt. George, UTRead More
Headquartered in South Jordan, Utah; Roseville, California; Elk Grove, California and Seattle, Washington, Executech is an IT managed services company. The midsize firm was established in 1999. Their services include IT managed services, cloud consulting & SI, cybersecurity, IT strategy consulting, and more.
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3Undisclosed10 - 49 employeesTukwila, WAIT managed services company Fuse Networks was founded in 2009. Their small team is located in Tukwila, Washington and offers IT managed services, cloud consulting & SI, unified communications consulting & SI, Cybersecurity, and more.Read More
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4$1,000+10 - 49 employeesBellevue, WARead More
MalwareCare, a cybersecurity company, is in Bellevue, Washington. They focus on cybersecurity and were established in 2007.
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5$25,000+10,000+ employeesKraków, PolandPersistent Systems is a data analytics company. Established in 1990, the large agency is headquartered in Pune, India; Santa Clara, California; Paris, France and Lyne, England. Their services include BI & big data consulting & SI, cloud consulting & SI, Cybersecurity, Custom Software Development, and more.Read More
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6$1,000+10 - 49 employeesRenton, WARead More
Fidelis, Inc. is an IT services company in Tukwila, Wash. and Wilsonville, Ore. Founded in 2008, they have about 10 employees that serve mostly small businesses in the business, education, and healthcare sectors. Services include IT managed services, cybersecurity, and UC consulting.
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Laurus Financial Services, LLCIndustries
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7Undisclosed10 - 49 employeesSeattle, WAKalles Group is a Cybersecurity company. The company is located in Seattle, Washington. Their services include Cybersecurity and Business Consulting.Read More
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A Global EnterpriseIndustries
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8Undisclosed1,000 - 9,999 employeesSeattle, WAWatchGuard Technologies is a Cybersecurity company. The firm is based in Seattle, Washington. Their services include Cybersecurity and IT managed services.Read More
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9$1,000+50 - 249 employeesSeattle, WAIT strategy consulting company Greene Information Systems was launched in 2012. In Seattle, Washington, the team offers IT strategy consulting and BI & big data consulting & SI.Read More
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10$1,000+50 - 249 employeesSeattle, WAIT managed services company Synergy IT Solutions Group specializes in IT managed services and Staffing. They are in Mississauga, Canada and Toronto, Canada.Read More
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11$1,000+2 - 9 employeesBellevue, WAOmnia Digital Media is an IT managed services company. They offer IT managed services and Web Design and are located in Bellevue, Washington.Read More
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12Undisclosed50 - 249 employeesSeattle, WABased in Seattle, Washington and Spokane, Washington, Cerium Networks is an unified communications consulting & SI company. The team provides unified communications consulting & SI and Cybersecurity.Read More
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13$5,000+50 - 249 employeesRedmond, WALocated in Redmond, Washington and Noida, India, UnifyCloud LLC is an Enterprise App Modernization company. The team offers Enterprise App Modernization and IT strategy consulting.Read More
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14$1,000+2 - 9 employeesKirkland, WAStratocent Technologies is an IT managed services company. Launched in 2011, their team offers IT managed services and Cybersecurity.Read More
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15Undisclosed250 - 999 employeesSeattle, WAFounded in 2007, ExtraHop is a Cybersecurity company. The team offers Cybersecurity and IT strategy consulting.Read More
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16Undisclosed2 - 9 employeesBellevue, WAProGloBix is a Cybersecurity and Compliance Consulting company. Established in 2012, the team offers Cybersecurity and Compliance Consulting. The firm is in Bellevue, Washington.Read More
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17Undisclosed10 - 49 employeesSeattle, WAMirai Security Inc. Is a Cybersecurity company. Established in 2017, the firm is located in Seattle, Washington and Vancouver, Canada. Their services include Cybersecurity and cloud consulting & SI.Read More
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18Undisclosed50 - 249 employeesBellevue, WARight! Systems, Inc. Is a Cybersecurity and IT managed services company founded in 1993. The midsize team offers Cybersecurity and IT managed services.Read More
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19Undisclosed10 - 49 employeesSeattle, WAStepfar Technology Group is a Cybersecurity and IT managed services company. They are based in Seattle, Washington and have small team. They offer Cybersecurity and IT managed services.Read More
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20Undisclosed2 - 9 employeesRenton, WAAg Washington Web Services is a Cybersecurity company. Established in 2011, the firm is headquartered in Renton, Washington. Their services include Cybersecurity and Web Design.Read More
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21Undisclosed10 - 49 employeesSeattle, WASentry Computing, a Cybersecurity company, was launched in 2008. The small team specializes in Cybersecurity and IT managed services.Read More
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22Undisclosed2 - 9 employeesSeattle, WAZen Techworks, Inc is a Cybersecurity company. They are located in Seattle, Washington and have small team of experts. Their services include Cybersecurity and IT strategy consulting.Read More
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23Undisclosed10 - 49 employeesBremerton, WAPOWTEC SOLUTIONS, LLC is a Bremerton, Washington-based custom software development firm. Their services include Custom Software Development and IT managed services.Read More
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24Undisclosed10 - 49 employeesSeattle, WAMaxwell IT, an IT strategy consulting company, provides IT strategy consulting and IT managed services. The agency is based in Seattle, Washington and Portland, Oregon.Read More
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25UndisclosedFreelancer employeesSeattle, WAPrimal Cybersecurity is a Cybersecurity company. The team specializes in Cybersecurity and is based in Seattle, Washington.Read More
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26Undisclosed10 - 49 employeesKirkland, WAHeadquartered in Kirkland, Washington and North Sydney, Australia, DeployPartners is an IT strategy consulting company. Their services include IT strategy consulting and IT managed services.Read More
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27Undisclosed2 - 9 employeesSeattle, WAPhishgrad, a Cybersecurity company, specializes in Cybersecurity. The agency is in Seattle, Washington.Read More
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28Undisclosed10 - 49 employeesLakewood, WACustom software development company Rev Consulting LLC was founded in 2011. The firm offers Custom Software Development and cloud consulting & SI.Read More
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29Undisclosed2 - 9 employeesOlympia, WAParagon Networks, a Cybersecurity company, focus on Cybersecurity and BI & big data consulting & SI. They were established in 2018.Read More
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