Top Penetration Testing Companies in United States

Compare 39+ penetration testing providers in United States. Read reviews, check ratings, and request free quotes.

39 Companies20 Cities

Best Penetration Testing Companies in United States

#1Skafos Managed IT LLC

Skafos Managed IT LLC

Verified★ Sponsored
No reviewsAppleton, Wisconsin, US

Skafos Managed IT delivers managed IT services, cybersecurity, Microsoft 365 support, cloud solutions, and proactive business IT support for Wisconsin businesses.

Cloud & InfrastructureIT ConsultingCybersecurity·1-9 emp. · Est. 2021
#2Mandiant

Mandiant

4.6(0)US

Simplify Security Operations

CybersecurityManaged Security Services (MSSP)Penetration Testing·<$25 · 1-9 emp. · From <$1000 · Est. 2004
#3Rapid7

Rapid7

4.6(0)US

Transforming Data Into Action

CybersecurityManaged Security Services (MSSP)Penetration Testing·<$25 · 1-9 emp. · From <$1000 · Est. 2000
#4ScienceSoft

ScienceSoft

4.1(0)US

Best Practices For High and Sustainable Quality

IT ConsultingCybersecurityManaged IT Services·<$25 · 1-9 emp. · From <$1000 · Est. 1989
#5Secureworks

Secureworks

4.0(0)US
CybersecurityManaged IT ServicesIT Support & Helpdesk·<$25 · 1-9 emp. · From <$1000 · Est. 1999
#6Invicti Security

Invicti Security

4.0(0)US
IT ConsultingCybersecurityManaged IT Services·<$25 · 1-9 emp. · From <$1000 · Est. 2018
#7Astra Security

Astra Security

4.0(0)US
CybersecurityManaged IT ServicesIT Support & Helpdesk·<$25 · 1-9 emp. · From <$1000 · Est. 2018
#8Suntel Analytics

Suntel Analytics

4.0(0)US
CybersecurityNetwork ManagementPenetration Testing·<$25 · 1-9 emp. · From <$1000 · Est. 2022
#9Raxis

Raxis

4.0(0)US
IT ConsultingCybersecurityIT Support & Helpdesk·<$25 · 1-9 emp. · From <$1000 · Est. 2011
#10Ebryx LLC

Ebryx LLC

4.0(0)US

Your One Stop Shop for Cybersecurity Services

CybersecurityIT Staff AugmentationManaged Security Services (MSSP)·<$25 · 1-9 emp. · From <$1000 · Est. 2008
#11Applied Tech

Applied Tech

4.0(0)US
IT ConsultingCybersecurityManaged IT Services·<$25 · 1-9 emp. · From <$1000 · Est. 1999
#12Trellix

Trellix

4.0(0)US
IT ConsultingCybersecurityPenetration Testing·<$25 · 1-9 emp. · From <$1000 · Est. 2022
#13Cobalt.io

Cobalt.io

4.0(0)US
CybersecurityManaged IT ServicesNetwork Management·<$25 · 1-9 emp. · From <$1000 · Est. 2013
#14White Knight Labs

White Knight Labs

4.0(0)US
CybersecurityIT Support & HelpdeskNetwork Management·<$25 · 1-9 emp. · From <$1000 · Est. 2016
#15AllSafe IT

AllSafe IT

Verified
4.0(0)Los Angeles, California, US+2

Managed IT, Cybersecurity, IT Consulting

Cloud & InfrastructureIT ConsultingCybersecurity·$150+ · 50-199 emp. · From <$1000 · Est. 2016
#16NetSpi

NetSpi

4.0(0)US
CybersecurityAI & Machine LearningBlockchain Development·<$25 · 1-9 emp. · From <$1000 · Est. 2001
#17UnderDefense

UnderDefense

4.0(0)US
IT ConsultingCybersecurityNetwork Management·<$25 · 1-9 emp. · From <$1000 · Est. 2017
#18CyberHunter Solutions

CyberHunter Solutions

4.0(0)US
CybersecurityNetwork ManagementPenetration Testing·<$25 · 1-9 emp. · From <$1000 · Est. 2016
#19Buchanan Technologies

Buchanan Technologies

4.0(0)US

An IT Partner Where Every Interaction Matters

IT ConsultingCybersecurityManaged IT Services·<$25 · 1-9 emp. · From <$1000 · Est. 1988
#20Daystar

Daystar

Verified
No reviewsBoston, Massachusetts, US

Strengthen Your Business with Total IT Support

Cloud & InfrastructureIT ConsultingCybersecurity·10-49 emp. · Est. 2000
#21BlueBox1 Technology LLC

BlueBox1 Technology LLC

Verified
No reviewsBoston, Massachusetts, US

We are architecture, engineering, construction & operations (AECO) native.

AI & Machine LearningIT Staff AugmentationAWS / Azure / GCP Services·10-49 emp. · Est. 2023
#22Alltek

Alltek

Verified
No reviewsUS

Alltek began operations in 2004 providing large-scale broadcast system design, integration, and commissioning services to a multitude of clients throughout North America.

Cloud & InfrastructureIT ConsultingCybersecurity·50-199 emp. · Est. 2004
#23Custom Computer Specialists, LLC

Custom Computer Specialists, LLC

Verified
No reviewsHauppauge, New York, US+4

CCS is an IT services and solutions provider delivering managed IT, cybersecurity, AI, cloud, infrastructure and technology consulting to organizations nationwide.

Cloud & InfrastructureIT ConsultingCybersecurity·200-999 emp. · Est. 1979
#24JRM360

JRM360

Verified
No reviewsOcala, Florida, US+2

JRM360 provides managed IT, cybersecurity, Microsoft 365, cloud, network, backup, and HIPAA-focused IT support for businesses in Ocala, Marion County, Gainesville, and The Villages.

Cloud & InfrastructureIT ConsultingCybersecurity·1-9 emp. · Est. 2024
#25MC Services - Milwaukee Managed IT Services Company

MC Services - Milwaukee Managed IT Services Company

Verified
No reviewsMilwaukee, Wisconsin, US

Welcome to MC Services, the human side of technology and your premier IT company in Milwaukee.

Application ManagementAWS / Azure / GCP ServicesCompliance & Risk Management·10-49 emp. · Est. 1995
#26The Nerd Stuff

The Nerd Stuff

Verified
No reviewsOregon, US

At The Nerd Stuff, we deliver expert IT solutions tailored to your business needs. We're not just nerdy technical experts, we're your friendly neighbors, reliable problem solvers and trusted partners.

Cloud & InfrastructureIT ConsultingCybersecurity·1-9 emp. · Est. 2020
#27Simply IT

Simply IT

Verified
No reviewsOcala, Florida, US

Veteran-owned managed IT, cybersecurity & Microsoft 365 for small businesses across North Central Florida. Plain-English support, fixed monthly pricing, no long-term contracts.

Cloud & InfrastructureIT ConsultingCybersecurity·1-9 emp. · Est. 2020
#28Kellton Tech Solutions Limited

Kellton Tech Solutions Limited

Verified
No reviewsPlano, Texas, US

Kellton is a global AI-driven IT consulting and digital engineering firm. We provide custom software, cloud solutions, and legacy modernization for startups and Fortune 500 enterprises.

Cloud & InfrastructureIT ConsultingCybersecurity·1000+ emp. · Est. 2009
#29Complete Technology Solutions, LLC

Complete Technology Solutions, LLC

Verified
No reviewsGilbert, Arizona, US

You'll hear back from a real engineer — not a bot, not a sales rep — in under one hour during business hours. If we miss that window, your next month is free. That promise is in writing in our MSA.

IT Staff AugmentationAWS / Azure / GCP ServicesBusiness Intelligence & Analytics·10-49 emp. · Est. 2020
#30FIT Technologies

FIT Technologies

Verified
No reviewsCleveland, Ohio, US

FIT Technologies is a full-service Managed IT Provider that develops long-term technology partnerships with our clients to increase efficiency, productivity, and cybersecurity.

Cloud & InfrastructureIT ConsultingCybersecurity·50-199 emp. · Est. 1999
#31OmegaCor Technologies

OmegaCor Technologies

Verified
No reviewsMillersville, Maryland, US

Mission-aligned IT support that simplifies cloud apps, secures data, and integrates systems—so nonprofits and growing organizations can focus on impact, deadlines, and growth.

Cloud & InfrastructureIT ConsultingCybersecurity·10-49 emp. · Est. 1997
#32LeadingIT

LeadingIT

Verified
No reviewsChicago, Illinois, US

LeadingIT is a Chicagoland managed service provider (MSP), providing IT support, IT helpdesk, cybersecurity support, and managed IT services Chicago trusts!

IT ConsultingCybersecurityManaged IT Services·10-49 emp. · Est. 2010
#33TechQuarter LLC

TechQuarter LLC

Verified
No reviewsCheyenne, Wyoming, US

We’re a results-driven team of engineering and creative professionals with a knack for innovation and using the latest technologies to help companies achieve digital transformation. ​

Cloud & InfrastructureCybersecuritySoftware Development·50-199 emp. · Est. 2014
#34Software Development Company

Software Development Company

Verified
No reviewsLos Angeles, California, US

A Digital Transformation Company - Software Development Company

Cloud & InfrastructureIT ConsultingSoftware Development·50-199 emp. · Est. 2020
#35Securelayer7

Securelayer7

No reviewsUS

Time and Again securing you

CybersecurityManaged Security Services (MSSP)Penetration Testing·<$25 · From <$1000 · Est. 2012
#36NOVO

NOVO

No reviewsUS

Technology support, Cyber Security, Compliance

IT ConsultingCybersecurityTechnology Advisory·<$25 · 1-9 emp. · From <$1000 · Est. 2018
#37TrueCore Technology

TrueCore Technology

No reviewsUS

Cyber Security and Disaster Recovery Specialists

IT ConsultingCybersecurityManaged IT Services·<$25 · 1-9 emp. · From <$1000 · Est. 2016
#38GCS Technologies

GCS Technologies

No reviewsUS

Complete IT Managed Services

CybersecurityManaged IT ServicesIT Support & Helpdesk·<$25 · 1-9 emp. · From <$1000 · Est. 2000
#39SafeAeon

SafeAeon

No reviewsUS

SafeAeon SOC as a Service

CybersecurityNetwork ManagementPenetration Testing·<$25 · 1-9 emp. · From <$1000 · Est. 2019

🏭 Industries

Professional Services (17)Accounting & Finance (14)Healthcare (10)Education (8)Manufacturing (7)Engineering (7)Government (6)Legal (6)Retail (6)Automotive (4)

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FAQ — Penetration Testing in United States

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