cybersecdirectory

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
CompanyBased inFoundedSizeOwnershipRevenue
Censys

Censys maps internet infrastructure and provides intelligence for security operations and exposure management.

Ann Arbor, United States2017Private
CyCognito

CyCognito provides a platform that discovers and tests external attack surfaces to identify security exposures.

Palo Alto, United StatesPrivate
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 StatesPrivate
runZero

runZero provides exposure management software that discovers and profiles assets across IT, OT, IoT, cloud and mobile networks.

Austin, United States2018Part of Dragos

Also active in attack surface management

40 companies
CompanyBased inFoundedSizeOwnershipRevenue
Microsoft

Microsoft sells software, cloud services, hardware, and gaming products.

Redmond, United States1975228,000 staffPublic, MSFT$331.8bn (FY2026)
Palo Alto Networks

Palo Alto Networks provides cybersecurity platforms and services to protect organizations from cyber threats.

Santa Clara, United States200513,900 staffPublic, PANW$11.5bn (FY2026)
CrowdStrike

CrowdStrike provides AI-native cybersecurity solutions to stop breaches.

Austin, United States20117,925 staffPublic, CRWD$4.8bn (FY2026)
Tenable

Tenable provides an exposure management platform that unifies security visibility, insight, and action across the attack surface.

Columbia, United States2002Public, TENB$999.4m (FY2025)
Qualys

Qualys provides an enterprise cyber risk and security platform.

Foster City, United States1999Public, 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 States2005201-500 staffPrivate
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 States2012201-500 staffPrivate
NetSPI

Penetration testing firm trusted by nine of the top ten US banks, with the Resolve platform for continuous attack surface management.

Minneapolis, United States2001201-500 staffOwned 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 States2013201-500 staffPart of NetSPI
BreachLock

Cloud-based Penetration Testing as a Service platform combining AI-driven automation with expert manual testing at accessible price points.

New York, United States201951-200 staffPrivate
Cobalt

Pioneer of Pentest as a Service, delivering fast, platform-based penetration testing with a vetted global community of security researchers.

San Francisco, United States201351-200 staffPrivate
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 States201051-200 staffPrivate
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 States201111-50 staffPrivate
Armis

Armis provides cyber exposure management and security for connected devices and operational technology.

United StatesPart of ServiceNow
Asimily

Asimily provides a platform to discover, assess, and mitigate risks for IoT, OT, and IoMT devices.

Sunnyvale, United StatesPrivate
AttackIQ

AttackIQ provides a platform for continuous threat exposure management and adversarial exposure validation.

Los Altos, United States2014Private
Bitsight

Bitsight provides a cyber risk intelligence platform.

Back Bay, United States2011Private
Canima

Canima provides an AI-powered penetration testing platform.

Dover, United States2025Private
Codename Sonar

Codename Sonar provides defensive reconnaissance for blue-team testing, including host discovery and network exposure assessment.

Midlothian, Virginia, United States2021Private
Cyble

Cyble provides AI-native threat intelligence and cybersecurity platforms for enterprises and governments.

Cupertino, United States2020Private
Cyderes

Cyderes provides managed cybersecurity services including identity, threat detection, and exposure management.

Kansas City, United StatesPrivate
Forescout Technologies

Forescout provides a platform for managing cyber risk and mitigating threats across IT, OT, IoT, and IoMT devices.

San Jose, United StatesOwned by Advent International and Crosspoint Capital Partners
HiddenLayer

HiddenLayer provides a security platform for AI applications, protecting against adversarial threats.

Austin, United States2022Private
Horizon3

Horizon3 runs autonomous attack testing to find and verify exploitable weaknesses in production environments.

San Francisco, United States2019Private
Infoblox

Infoblox provides networking and security software for DNS, DHCP and IP address management.

Santa Clara, United StatesPrivate
Intel 471

Intel 471 provides cyber threat intelligence focused on adversary tracking, malware intelligence and underground marketplace coverage.

United StatesOwned by Thoma Bravo
Picus Security

Picus Security provides a platform that validates exposures and security controls by simulating cyber attacks.

Wilmington, United States2013Private
ProjectDiscovery

ProjectDiscovery builds open-source security tools and infrastructure for mapping, probing, crawling, and detecting vulnerabilities.

San Francisco, United States2020Private
ReliaQuest

ReliaQuest provides an AI security operations platform for enterprises to detect and respond to threats.

Tampa, United StatesPrivate
RiskRecon by Mastercard

RiskRecon provides cybersecurity ratings and assessments to help organisations manage third-party and supply chain risk.

Murray, United StatesPrivate
SafeBreach

SafeBreach provides a platform that validates security controls and manages cyber exposure for enterprises.

Sunnyvale, United StatesPrivate
Siemba

Siemba provides autonomous and expert-led penetration testing for security teams.

Alpharetta, United StatesPrivate
Tanium

Tanium provides a platform for managing and securing endpoints across large networks.

Emeryville, United States2007Private
Team Cymru

Team Cymru provides global threat intelligence from internet traffic for proactive defence.

Lake Mary, United StatesPrivate
UpGuard

UpGuard provides a platform for managing cyber risk across vendors, attack surface, and workforce.

Mountain View, United States2012Private
Invicti

Invicti provides web application and API security testing software for enterprises.

Austin, United States2005Private
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 StatesPrivate
Recorded Future

Recorded Future provides a threat intelligence platform that indexes open, dark and technical sources. Acquired by Mastercard for $2.65bn.

United States2008Owned by Mastercard
SecurityScorecard

SecurityScorecard provides a platform for managing third-party and supply chain cyber risk.

New York, United States2013Private
ZeroFox

ZeroFox provides external cybersecurity services to discover, validate, and disrupt digital threats.

Baltimore, United States2013Owned by Haveli

More attack surface management vendors

All 81 attack surface management vendors

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