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.
List of the Best Penetration Testing Companies
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301$5,000+2 - 9 employeesŁódź, PolandRead More
Blockhunters is a blockchain auditing company based in Lodz, Poland and founded in 2018. Specializing in blockchain, the five-person team also provides cybersecurity and custom software development services. Their client focus is on small businesses in the financial services, IT, telecommunications, and e-commerce sectors.
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Dispatch LabsIndustries
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302$10,000+50 - 249 employeesAtlanta, GARead More
ImagineX Consulting, a cybersecurity company, was launched in 2015. The agency specializes in cybersecurity, custom software development, BI & big data consulting & SI, web development, and more and has a midsize team.
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Intercontinental Hotels GroupIndustries
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303$1,000+250 - 999 employeesLumberton, NJRead More
Miles Technologies is an IT and software firm founded in 1997 and headquartered in Moorestown, N.J. With an additional office in Philadelphia, they operate with a team of over 300 employees to provide various services, including custom software development, mobile app development, and cloud consulting and SI. Their clientele consists of small, midmarket, and enterprise companies within the business, financial, or health care industries.
Clients
Kramer BeverageIndustries
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304$1,000+10 - 49 employeesRead More
MSPAssist is an IT managed services firm based in Mohali, India. Founded in 2010, their team of 25 serves clients in the IT sector. Services include IT strategy consulting and cybersecurity.
Clients
KaseyaIndustries
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305$1,000+50 - 249 employeesGreenville, SCCybersecurity company Corsica Technologies is in Greenville, South Carolina and Augusta, Georgia. The team focuses on Cybersecurity and other IT consulting and SI.Read More
Clients
Medpoint Center for Development Services Health Center Credit Union Honor Flight NetworkIndustries
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306$1,000+2 - 9 employeesVilnius, LithuaniaRead More
ENNEID is a small cybersecurity company. Headquartered in Vilnius, Lithuania, the agency was established in 2022. Their team specializes in cybersecurity, corporate training, and compliance consulting.
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307Undisclosed10 - 49 employeesDenver, CORead More
Business Network Consulting is an IT managed services and IT strategy consulting company. Established in 1997, the team offers IT managed services and IT strategy consulting. Their midsize firm is Denver, Colorado-based.
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Charley's ConcreteIndustries
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308$25,000+10 - 49 employeesTysons, VARead More
Located in Tysons, Virginia; Briarcliff, Texas and St Andrews, United Kingdom, bladestack.io is a small cybersecurity company. They specialize in cybersecurity, cloud consulting & SI, and IT strategy consulting and were founded in 2021.
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309Undisclosed10 - 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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310Undisclosed10 - 49 employeesRiverwoods, ILRead More
Computing Technology Solutions is an IT managed services and SEO company. The small Riverwoods, Illinois-based agency was established in 2001. Their team provides IT managed services and search engine optimization.
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311Undisclosed50 - 249 employeesRybnik, PolandHostersi is a cloud consulting & SI company launched in 2007. The company offers cloud consulting & SI, IT managed services, BI & big data consulting & SI, and Cybersecurity and has a midsize team.Read More
Clients
DanoneIndustries
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312Undisclosed10 - 49 employeesCoppell, TXRead More
Data Magic Computer Services is a cloud consulting & SI company launched in 1994. They are in Coppell, Texas and have a small team. The agency focuses on cloud consulting & SI, IT managed services, cybersecurity, and IT strategy consulting.
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313$1,000+2 - 9 employeesMemphis, TNRead More
Wintellisys, Inc is an IT company from Memphis, Tennessee. Founded in 2007, they’re experienced in IT managed service, IT strategy consulting, and cloud consulting and SI. They have 7 employees.
Clients
Newberry TanksIndustries
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314$1,000+2 - 9 employeesMumbai, IndiaRead More
CiELO Technologies is a cloud security firm that operates out of Mumbai, India. The company was founded in 2015 and operates with a team of under 10 employees. Core services include cybersecurity and cloud consulting for small, mid-sized, and enterprise-level businesses in the financial services, automotive, and education sectors.
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315Undisclosed10 - 49 employeesNashville, TNRead More
Sublime Computer Services, a small IT managed services company, is located in Nashville, Tennessee and Hendersonville, Tennessee. Their services include IT managed services and cybersecurity.
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316$25,000+10 - 49 employeesWarszawa, PolandRead More
Headquartered in Oslo, Norway and founded in 2012, Chimera Prime is a software development company with a secondary location in Warsaw, Poland. Their team of 24 specializes in custom software development, UX/UI, web development, and mobile app development for client projects.
Clients
Multilot ASIndustries
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317$50,000+1,000 - 9,999 employeesPlano, TXRead More
IT strategy consulting and other IT consulting and SI company Black Box is headquartered in. The company provides IT strategy consulting and other IT consulting and SI and is large.The company was established in 1976.
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318$5,000+50 - 249 employeesSacramento, CARead More
West Advanced Technologies Inc is a midsize Sacramento, California-based cybersecurity company. The team specializes in cybersecurity, IT staff augmentation, cloud consulting & SI, and IT managed services.
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319Undisclosed50 - 249 employeesCincinnati, OHRead More
Intrust IT & Cyber Security, a cybersecurity company, is based in Cincinnati, Ohio. The small team focuses on cybersecurity, IT managed services, IT strategy consulting, cloud consulting & SI, and more. The company was established in 1992.
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320$1,000+50 - 249 employeesPonte Vedra Beach, FLLaunched in 2011, Lannan Technologies is a big data analytics company. The company provides BI & big data consulting & SI, cloud consulting & SI, cybersecurity, and IT managed services and has a midsize team.Read More
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321$1,000+10 - 49 employeesGermasogeia, CyprusRead More
SiteGuarding CY Ltd. is a website security and antivirus company, founded in 2008 and located in Limassol, Cyprus. They have between 50 and 249 employees specializing in malware removal, website protection, secure web hosting, firewall, SSL, and website backup. They typically work with small businesses in e-commerce and consumer products.
Clients
Stark GamesIndustries
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322$25,000+10 - 49 employeesRead More
ONSEC.io, a application testing company, was launched in 2009. The small San Francisco, California-based team provides application testing, cloud consulting & SI, and mobile app development.
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323Undisclosed50 - 249 employeesFishers, INBraden Business Systems, an IT strategy consulting company, was launched in 1989. The team provides IT strategy consulting and cloud consulting & SI.Read More
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Over ten thousand clients nationwideIndustries
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324$1,000+10 - 49 employeesWest Seneca, NYRead More
SynchroNet is a small IT managed services company. Launched in 1998, the company is based in West Seneca, New York. Their services include IT managed services, IT strategy consulting, and Cybersecurity.
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325$1,000+10 - 49 employeesChesterfield, MOFounded in 2001, Alliance Tech is a small IT managed services company. Their team offers IT managed services, Cybersecurity, IT strategy consulting, cloud consulting & SI, and more. The company is headquartered in Chesterfield, Missouri and Grand Rapids, Michigan.Read More
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326$5,000+10 - 49 employeesAhmedabad, IndiaRead More
Compufy Technolab LLP is a cloud & DevOps consulting service provider based in Ahmedabad, India, and founded in 2017. Their team of more than 10 specializes in cloud consulting, IT strategy consulting, and cybersecurity solutions for small businesses.
Clients
CentralBOS LLCIndustries
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327$5,000+2 - 9 employeesSummerville, SCRead More
Kotori Technologies, LLC, an IT managed services company, was established in 2006. They are in North Charleston, South Carolina and have a small team. Their services include IT managed services and cybersecurity.
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328$50,000+50 - 249 employeesScottsdale, AZCustom software development firm Gate6, Inc. Is located in Scottsdale, Arizona and Indore, India. Launched in 1996, the midsize team provides Custom Software Development, Web Development, Mobile App Development, UX/UI Design, and more.Read More
Clients
poolbrainIndustries
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329Undisclosed10 - 49 employeesNew York, NYNopalCyber, a small Cybersecurity company, is based in New York, New York and Kothaguda, India. They specialize in Cybersecurity, cloud consulting & SI, and IT managed services and were founded in 2023.Read More
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330Undisclosed10 - 49 employeesTampa, FLRead More
Sixwatch is an IT strategy consulting company based in Tampa, Florida. The small team specializes in IT strategy consulting, cloud consulting & SI, cybersecurity, IT managed services, and more and was established in 2020.
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