Trail of Bits
New York, United States
Security work that outlasts the engagement
Penetration test…Application secu…Red teaming
- records
- 1
- team
- 150-300
- founded
- 2012
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33 providers
Verified providers
TrustedSec
Fairlawn, United States
Practical, human-led offensive security
Penetration test…Red teamingIncident response+1 more
- records
- 1
- team
- 100-250
- founded
- 2012
Sprocket Security
Madison, WI, United States
Penetration test…Red teamingVulnerability ma…
- records
- 1
- team
- 10-50
- founded
- 2017
Synack
Redwood City, CA, United States
Penetration test…Red teamingApplication secu…+1 more
- records
- 1
- team
- 200+
- founded
- 2013
TCM Security
Charlotte, NC, United States
Penetration test…Application secu…
- records
- 1
- team
- 10-50
- founded
- 2019
PurpleSec
Washington, DC, United States
Veteran-owned purple team practice for SMB and startup buyers
Blue team & dete…Red teamingVulnerability ma…+1 more
- records
- 1
- team
- 10-50
- founded
- 2019
Black Hills Information Security
Spearfish, SD, United States
Blue team services from John Strand's South Dakota shop
Blue team & dete…Red teamingThreat hunting+1 more
- records
- 1
- team
- 50-200
- founded
- 2008
Aerstone
Rockville, MD, United States
SDVOSB cybersecurity boutique with NSA vulnerability-assessor accreditation
Blue team & dete…Penetration test…Vulnerability ma…
- records
- 1
- team
- 10-50
- founded
- 2005
Rhino Security Labs
Seattle, WA, United States
Penetration test…Red teamingApplication secu…
- records
- 1
- team
- 10-50
- founded
- 2013
Raxis
Atlanta, GA, United States
Penetration test…Red teamingApplication secu…
- records
- 1
- team
- 10-50
- founded
- 2011
Praetorian
Austin, United States
Prevent breaches before they occur
Penetration test…Red teamingApplication secu…+1 more
- records
- 1
- team
- 200-500
- founded
- 2010
Palindrome Technologies
Hazlet, NJ, United States
Penetration test…Application secu…Vulnerability ma…
- records
- 1
- team
- 10-50
- founded
- 2005
OnDefend
Jacksonville, United States
Continuous security validation and purple team defensive testing
Blue team & dete…Red teamingPenetration test…+2 more
- records
- 1
- team
- 50-100
- founded
- 2016
nVisium
Herndon, United States
Full-lifecycle application and software security for Fortune 500 and government.
Application secu…Penetration test…Vulnerability ma…
- records
- 1
- team
- 50-100
- founded
- 2009
NetSPI
Minneapolis, United States
Proactive security at scale
Penetration test…Red teamingVulnerability ma…+1 more
- records
- 1
- team
- 1000+
- founded
- 2001
LMG Security
Missoula, United States
Woman-owned Montana boutique known for forensics and expert testimony.
Incident responsePenetration test…Application secu…+1 more
- records
- 1
- team
- 11-50
- founded
- 2008
LevelBlue
Dallas, TX, United States
SOC & MDR monito…Incident responseVulnerability ma…+2 more
- records
- 1
- team
- 200+
- founded
- 2024
Latitude Information Security
Havertown, PA, United States
Penetration test…Application secu…Vulnerability ma…+1 more
- records
- 1
- team
- 10-50
- founded
- 2019
Kroll
New York, NY, United States
Incident responsePenetration test…Application secu…+2 more
- records
- 1
- team
- 200+
- founded
- n/a
Doyensec
San Francisco, United States
Independent security research and vulnerability discovery for modern apps.
Application secu…Penetration test…Vulnerability ma…
- records
- 1
- team
- 10-50
- founded
- 2017
IOActive
Seattle, WA, United States
Penetration test…Red teamingApplication secu…
- records
- 1
- team
- 200+
- founded
- 1998
Independent Security Evaluators
Baltimore, MD, United States
Application secu…Penetration test…
- records
- 1
- team
- 10-50
- founded
- 2005
Include Security
Brooklyn, United States
High-end manual application security assessments
Penetration test…Application secu…
- records
- 1
- team
- 30-80
- founded
- 2010
HackerOne
San Francisco, CA, United States
Vulnerability ma…Penetration test…Application secu…
- records
- 1
- team
- 200+
- founded
- 2012
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