Streym
MSSP / managedPenetration testing, managed IT security and network security administration.
London, GB· 2–9 employees (reported) people
Categories · Market focus
Offensive security companies
Explore offensive security companies offering adversarial assessments, red teaming and penetration testing. Review each provider’s scope before building your shortlist.
Also browse Pentesting companies — the same company set under a related category.
229 companies. Refine by location, capabilities, or team size to find the right fit.
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Strike
Product vendorContinuous penetration testing.
Miami, US
Suricate Solutions
MSSP / managedManaged security operations, penetration testing and vulnerability management.
SN
Symasis
Consultancy / pentestVirtual CISO services, vulnerability management and penetration testing.
Goshen, US· 2–9 employees (reported) people
Synacktiv
Consultancy / pentestPenetration testing, vulnerability research and security code reviews.
FR
Syncode
Consultancy / pentestApplication and network penetration testing alongside secure software development.
Sarajevo, BA· 2–9 employees (reported) people
Syndis
Consultancy / pentestPenetration testing, offensive security assessments and cybersecurity consulting.
IS
SySS
Consultancy / pentestPenetration testing, technical security consulting and incident investigation.
DE
Tarlogic
Consultancy / pentestRed team exercises, cyber attack simulation and technical security assessments.
ES
Tekium
Consultancy / pentestPenetration testing, application security reviews and adversary simulation.
MX
The Valander Group
Consultancy / pentestPenetration testing, vulnerability scanning, security training, and compliance support.
Reading, US· 2–9 employees (reported) people
Trace
Product vendorA penetration testing platform combining automated testing, human review and remediation reports.
Brooklyn, US· 2–9 employees (reported) people
Trausta
Consultancy / pentestCompliance assessments, penetration testing, vulnerability assessments and virtual CISO services.
Vilnius, LT· 2–9 employees (reported) people
Triaxiom Security
Consultancy / pentestPenetration testing, compliance auditing and strategic security consulting.
Charlotte, US· 2–9 employees (reported) people
TrustFoundry
Consultancy / pentestApplication, network, mobile and cloud penetration testing.
Overland Park, US· 2–9 employees (reported) people
Tumeryk
Product vendorAI guardrails, red teaming and enterprise AI posture assessment.
US
TwelveSec
Consultancy / pentestPenetration testing, vulnerability assessments and information security consulting.
GR
Unshade
Consultancy / pentestPenetration testing, cybersecurity audits and security training.
Poznań, PL· 2–9 employees (reported) people
Vanguard Cyber
Consultancy / pentestPenetration testing, security assessments, compliance support and incident response.
Sydney, AU· 2–9 employees (reported) people
Vantage Point Security
Consultancy / pentestRed team exercises, penetration testing and security code reviews.
SG
Verentix
Consultancy / pentestPenetration testing for applications, APIs, cloud infrastructure, ATMs and industrial systems.
Pimpri-Chinchwad, IN· 2–9 employees (reported) people
Viris
Consultancy / pentestPenetration testing and information security assessments.
SI
Virtue Security
Consultancy / pentestApplication, network and cloud penetration testing services.
New York, US· 2–9 employees (reported) people
VKNC
Consultancy / pentestPenetration testing, vulnerability assessments and cybersecurity risk consulting.
MN
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