Attack surface management vendors in the United States
44 of the 81 attack surface management vendors we list are based in the United States. 5 are public, 8 are owned by another company and 31 are private. The oldest, Microsoft, was founded in 1975. By revenue from annual reports, the largest company here is Microsoft ($331.8bn in FY2026).
Companies focused on attack surface management in the United States
4 companies| Company | Based in | Founded | Size | Ownership | Revenue |
|---|---|---|---|---|---|
Censys Censys maps internet infrastructure and provides intelligence for security operations and exposure management. | Ann Arbor, United States | 2017 | Private | ||
CyCognito CyCognito provides a platform that discovers and tests external attack surfaces to identify security exposures. | Palo Alto, United States | Private | |||
Axonius Asset intelligence platform that builds one inventory of every asset from connected IT and security tools to find coverage gaps and prioritise exposures. | New York, United States | Private | |||
runZero runZero provides exposure management software that discovers and profiles assets across IT, OT, IoT, cloud and mobile networks. | Austin, United States | 2018 | Part of Dragos |
Also active in attack surface management
40 companies| Company | Based in | Founded | Size | Ownership | Revenue |
|---|---|---|---|---|---|
Microsoft Microsoft sells software, cloud services, hardware, and gaming products. | Redmond, United States | 1975 | 228,000 staff | Public, MSFT | $331.8bn (FY2026) |
Palo Alto Networks Palo Alto Networks provides cybersecurity platforms and services to protect organizations from cyber threats. | Santa Clara, United States | 2005 | 13,900 staff | Public, PANW | $11.5bn (FY2026) |
CrowdStrike CrowdStrike provides AI-native cybersecurity solutions to stop breaches. | Austin, United States | 2011 | 7,925 staff | Public, CRWD | $4.8bn (FY2026) |
Tenable Tenable provides an exposure management platform that unifies security visibility, insight, and action across the attack surface. | Columbia, United States | 2002 | Public, TENB | $999.4m (FY2025) | |
Qualys Qualys provides an enterprise cyber risk and security platform. | Foster City, United States | 1999 | Public, QLYS | $669.1m (FY2025) | |
Bishop Fox Tempe, Arizona-headquartered offensive security firm and Black Hat / DEF CON regulars, makers of the Cosmos continuous attack surface management platform. | Tempe, United States | 2005 | 201-500 staff | Private | |
Bugcrowd Crowdsourced bug bounty pioneer founded in 2012 by Casey Ellis, offering managed programs and crowd-powered penetration testing from hundreds of thousands of ethical hackers. | San Francisco, United States | 2012 | 201-500 staff | Private | |
N NetSPI Penetration testing firm trusted by nine of the top ten US banks, with the Resolve platform for continuous attack surface management. | Minneapolis, United States | 2001 | 201-500 staff | Owned by KKR | |
Synack FedRAMP-authorized crowdsourced penetration testing platform combining the vetted SRT researcher community with AI-powered Hydra technology for continuous security testing. | Redwood City, United States | 2013 | 201-500 staff | Part of NetSPI | |
B BreachLock Cloud-based Penetration Testing as a Service platform combining AI-driven automation with expert manual testing at accessible price points. | New York, United States | 2019 | 51-200 staff | Private | |
Cobalt Pioneer of Pentest as a Service, delivering fast, platform-based penetration testing with a vetted global community of security researchers. | San Francisco, United States | 2013 | 51-200 staff | Private | |
Praetorian Offensive security firm founded by former DoD professionals. Combines deep offensive testing with the Chariot attack surface management platform and its Exploit validation engine. | Austin, United States | 2010 | 51-200 staff | Private | |
Raxis US penetration testing firm founded in 2011, running 600+ engagements a year with a fully remote, US-based team. Manual, expert-led testing across web, network, cloud, mobile, wireless, OT/ICS, and AI/LLM. Gartner Sample Vendor for PTaaS. | Atlanta, United States | 2011 | 11-50 staff | Private | |
Armis Armis provides cyber exposure management and security for connected devices and operational technology. | United States | Part of ServiceNow | |||
Asimily Asimily provides a platform to discover, assess, and mitigate risks for IoT, OT, and IoMT devices. | Sunnyvale, United States | Private | |||
AttackIQ AttackIQ provides a platform for continuous threat exposure management and adversarial exposure validation. | Los Altos, United States | 2014 | Private | ||
Bitsight Bitsight provides a cyber risk intelligence platform. | Back Bay, United States | 2011 | Private | ||
Canima Canima provides an AI-powered penetration testing platform. | Dover, United States | 2025 | Private | ||
Codename Sonar Codename Sonar provides defensive reconnaissance for blue-team testing, including host discovery and network exposure assessment. | Midlothian, Virginia, United States | 2021 | Private | ||
Cyble Cyble provides AI-native threat intelligence and cybersecurity platforms for enterprises and governments. | Cupertino, United States | 2020 | Private | ||
Cyderes Cyderes provides managed cybersecurity services including identity, threat detection, and exposure management. | Kansas City, United States | Private | |||
Forescout Technologies Forescout provides a platform for managing cyber risk and mitigating threats across IT, OT, IoT, and IoMT devices. | San Jose, United States | Owned by Advent International and Crosspoint Capital Partners | |||
HiddenLayer HiddenLayer provides a security platform for AI applications, protecting against adversarial threats. | Austin, United States | 2022 | Private | ||
Horizon3 Horizon3 runs autonomous attack testing to find and verify exploitable weaknesses in production environments. | San Francisco, United States | 2019 | Private | ||
Infoblox Infoblox provides networking and security software for DNS, DHCP and IP address management. | Santa Clara, United States | Private | |||
Intel 471 Intel 471 provides cyber threat intelligence focused on adversary tracking, malware intelligence and underground marketplace coverage. | United States | Owned by Thoma Bravo | |||
Picus Security Picus Security provides a platform that validates exposures and security controls by simulating cyber attacks. | Wilmington, United States | 2013 | Private | ||
ProjectDiscovery ProjectDiscovery builds open-source security tools and infrastructure for mapping, probing, crawling, and detecting vulnerabilities. | San Francisco, United States | 2020 | Private | ||
ReliaQuest ReliaQuest provides an AI security operations platform for enterprises to detect and respond to threats. | Tampa, United States | Private | |||
RiskRecon by Mastercard RiskRecon provides cybersecurity ratings and assessments to help organisations manage third-party and supply chain risk. | Murray, United States | Private | |||
SafeBreach SafeBreach provides a platform that validates security controls and manages cyber exposure for enterprises. | Sunnyvale, United States | Private | |||
Siemba Siemba provides autonomous and expert-led penetration testing for security teams. | Alpharetta, United States | Private | |||
Tanium Tanium provides a platform for managing and securing endpoints across large networks. | Emeryville, United States | 2007 | Private | ||
Team Cymru Team Cymru provides global threat intelligence from internet traffic for proactive defence. | Lake Mary, United States | Private | |||
UpGuard UpGuard provides a platform for managing cyber risk across vendors, attack surface, and workforce. | Mountain View, United States | 2012 | Private | ||
Invicti Invicti provides web application and API security testing software for enterprises. | Austin, United States | 2005 | Private | ||
Panorays Third-party cyber risk management platform with vendor security questionnaires, external attack surface ratings, continuous monitoring and remediation workflows for suppliers. | New York, United States | Private | |||
Recorded Future Recorded Future provides a threat intelligence platform that indexes open, dark and technical sources. Acquired by Mastercard for $2.65bn. | United States | 2008 | Owned by Mastercard | ||
SecurityScorecard SecurityScorecard provides a platform for managing third-party and supply chain cyber risk. | New York, United States | 2013 | Private | ||
ZeroFox ZeroFox provides external cybersecurity services to discover, validate, and disrupt digital threats. | Baltimore, United States | 2013 | Owned by Haveli |
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