Top 100 Penetration Testing Services
The Best of December 2025Looking for a top penetration testing company?
Also known as ethical hacking, penetration testing deals with testing computer systems, networks, and web applications to identify security vulnerabilities. Pen testing simulates real-life security attacks to determine areas that attackers could exploit. Ultimately, it highlights the weaknesses of your company’s IT infrastructure and makes it easier to identify the necessary steps to prevent security breaches.
Hiring a penetration testing company will give you a strategic advantage in bolstering organizational security. Since there are many tools and resources involved in executing penetration tests, working with a penetration testing agency can save you both money and time.
That's why we've created this list of the best penetration testing services for you to review. Read through company descriptions, former clients, and notable projects to find the best fit for your business.
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List of the Best Penetration Testing Companies
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2671Undisclosed10 - 49 employeesSan Francisco, CAFounded in 1987, Langtech is a small IT managed services company. Their services include IT managed services and Custom Software Development.Read More
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2672$1,000+10 - 49 employeesExeter, EnglandIT Champion Ltd is an IT managed services company. The team specializes in IT managed services and IT strategy consulting and is in Exeter, England and London, England.Read More
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2673$1,000+10 - 49 employeesMiami, FLBroadMAX Networks is an IT managed services company. Their team is in Miami, Florida and focuses on IT managed services and IT strategy consulting.Read More
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2674Undisclosed10 - 49 employeesVilnius, LithuaniaIT PLASTA is an IT managed services company. The Vilnius, Lithuania-based team focuses on IT managed services and IT strategy consulting.Read More
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2675Undisclosed250 - 999 employeesSyracuse, NYAdvanced IT LLC is an IT managed services company founded in 2016. The agency specializes in IT managed services and Cybersecurity, and is midsize.Read More
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2676Undisclosed250 - 999 employeesPendleton, ORCayuse Technologies, LLC is a software development company. Established in 2006, the team provides Custom Software Development and Corporate Training & Coaching.Read More
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2677Undisclosed250 - 999 employeesManassas, VABroadleaf, Inc., a Cybersecurity company, is located in Manassas, Virginia. Their services include Cybersecurity and Custom Software Development.Read More
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2678Undisclosed250 - 999 employeesAtlanta, GAEstablished in 1911, Thompson Hine LLP is a Business Consulting company. The team specializes in Business Consulting and Compliance Consulting.Read More
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2679$1,000+2 - 9 employeesSalford, EnglandLaunched in 2016, Defendza is a Cybersecurity company. The team provides Cybersecurity and IT strategy consulting.Read More
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2680Undisclosed2 - 9 employeesWashington, DCWashington DC Computer Forensics is a Cybersecurity company launched in 1992. In Washington, District of Columbia, the team offers Cybersecurity.Read More
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2681Undisclosed2 - 9 employeesSpeedway, INSentree Systems, Corp. Is a Cybersecurity company in Speedway, Indiana. The team focuses on Cybersecurity.Read More
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2682Undisclosed2 - 9 employeesJeffersonville, INBlackbird Cyber Security Solutions, LLC is a Cybersecurity company. Launched in 2018, the team focuses on Cybersecurity. The agency is based in Jeffersonville, Indiana.Read More
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2683Undisclosed2 - 9 employeesHelena, MTOnPoint Cyber is a Cybersecurity company. Their small team is based in Helena, Montana. Their services include Cybersecurity.Read More
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2684Undisclosed2 - 9 employeesNorth Oaks, MNEstablished in 2011, Larson Security LLC is a small Cybersecurity company. Their services include Cybersecurity.Read More
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2685Undisclosed2 - 9 employeesVP Security, LLC is a Cybersecurity company. The Lake Hopatcong, New Jersey-based agency was founded in 2013. Their team focuses on Cybersecurity.Read More
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2686Undisclosed2 - 9 employeesEvesham, NJWislyn, a small Cybersecurity company, is based in Evesham, New Jersey. The team specializes in Cybersecurity.Read More
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2687Undisclosed2 - 9 employeesPrinceton, NJGLESEC GROUP is a Cybersecurity company. The Princeton, New Jersey-based team offers Cybersecurity and BI & big data consulting & SI.Read More
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2688Undisclosed2 - 9 employeesHolmdel, NJSTOPit Solutions, a Cybersecurity company, was founded in 2013. The team focuses on Cybersecurity and is located in Holmdel, New Jersey.Read More
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2689Undisclosed2 - 9 employeesBaltimore, MDVeteran Technologists Corporation is a Cybersecurity company. Headquartered in Baltimore, Maryland, the firm was established in 1946. Their team specializes in Cybersecurity and ECM consulting and SI.Read More
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2690Undisclosed2 - 9 employeesEldersburg, MDCybersecurity company SPYROS Information & Technology Consulting is based in Eldersburg, Maryland. They focus on Cybersecurity and Corporate Training & Coaching.Read More
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2691Undisclosed2 - 9 employeesStafford, VAFounded in 2016, Daggers Group is a Cybersecurity company. The agency provides Cybersecurity and IT managed services, and is small.Read More
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2692Undisclosed2 - 9 employeesCypress, TXM&M Technology Solution LLC, a small Cybersecurity company, is based in Cypress, Texas. Their services include Cybersecurity and IT strategy consulting.Read More
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2693Undisclosed2 - 9 employeesFrederick, MDAntietam Technologies is a Cybersecurity company. In Frederick, Maryland, the company provides Cybersecurity.Read More
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2694Undisclosed2 - 9 employeesChesapeake, VABased in Chesapeake, Virginia, Hamma Enterprises, LLC is a Cybersecurity company. Their services include Cybersecurity and IT managed services.Read More
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2695Undisclosed2 - 9 employeesReston, VAEmpower Solutions, LLC is a Cybersecurity company. They are headquartered in Reston, Virginia and have small team of experts. Their services include Cybersecurity.Read More
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2696Undisclosed2 - 9 employeesLeesburg, VAKCW Design Group, LLC is a small Cybersecurity company located in Leesburg, Virginia. Their services include Cybersecurity.Read More
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2697Undisclosed2 - 9 employeesWinchester, VATrue North Group is a Cybersecurity company. Located in Winchester, Virginia, their team focuses on Cybersecurity and IT managed services.Read More
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2698Undisclosed2 - 9 employeesHughesville, MDSimmetry is a Cybersecurity company in Hughesville, Maryland. The team specializes in Cybersecurity and IT managed services.Read More
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2699Undisclosed2 - 9 employeesStafford, VAD&O Security Solutions LLC is a Cybersecurity company. The Stafford, Virginia-based firm offers Cybersecurity and Application Management & Support.Read More
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2700Undisclosed2 - 9 employeesLawrenceville, GACyber Security Compliance Group, LLC is a Cybersecurity company. The team provides Cybersecurity, and the firm is based in Lawrenceville, Georgia.Read More
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