Top Attack Surface Management Vendorsin 2026

Which ASM vendor maps your internet-facing assets best? Tenable, Censys, Rapid7, CloudSEK and Outpost24 rank on discovery depth, accuracy and alert quality.

Attack Surface Management Ranked

Vendors

Last Updated

October 9, 2026

Which ASM vendor maps your internet-facing assets best? Tenable, Censys, Rapid7, CloudSEK and Outpost24 rank on discovery depth, accuracy and alert quality.

Not sure which to pick? See the top 3 side by side: Cortex Xpanse, Balbix Cyber Risk Platform, Censys ASM.

Compare the top 3

#1 Top Rank

Editorial #1 ChoiceCAASM

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Cortex Xpanse

byPalo Alto NetworksVerified

Santa Clara, California, USA15,000+

Cortex Xpanse is an attack surface management platform for external attack surface management. See features and Attack Surface Management alternatives.

External attack surface managementShadow IT discoveryM&A risk discoverySubsidiary trackingPublic cloud asset governance

Deployment

SaaS, Cloud

Integrations

Cortex XSOAR, Cortex XDR, Prisma Cloud +6

Target Users

Cross-industry, Financial Services, Healthcare, Government, Technology, Retail

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II, ISO 27001, HIPAA, GDPR

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#2 Runner Up

Cyber Risk Management

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Balbix Cyber Risk Platform

byBalbixVerified

San Jose, California, USA201-500

Evaluating Balbix Cyber Risk Platform? See how this Exposure Management tool handles unified asset inventory, where it fits best and which alternatives to compare.

Cyber risk quantificationBoard reportingSecurity investment prioritizationRisk-based vulnerability management

Deployment

SaaS, Cloud

Integrations

CrowdStrike, Microsoft Defender, SentinelOne +6

Target Users

Financial Services, Healthcare, Insurance, Manufacturing, Technology

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II

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#3 Ranked

Attack Surface Management

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Censys ASM

byCensysVerified

Ann Arbor, Michigan, USA201-500

What does Censys ASM do? It covers continuous external asset discovery and seed-based attribution. See typical use cases, cloud deployment and how it compares to rivals.

External asset inventoryShadow IT discoveryExposure remediationM&A and subsidiary monitoring

Deployment

SaaS, Cloud

Integrations

AWS, Microsoft Azure, Google Cloud +5

Target Users

Financial Services, Government, Technology, Healthcare, Retail

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II

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Asset Discovery

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RunZero Asset Inventory

byRunZeroVerified

Boston, Massachusetts, USA51-200

Evaluating RunZero Asset Inventory? See how this Attack Surface Management tool handles dynamic search queries, where it fits best and which alternatives to compare.

Cyber asset attack surface managementUncredentialed asset discoveryMissing agent identificationShadow IT

Deployment

SaaS, Cloud, On-Premise

Integrations

AWS, Azure, GCP +6

Target Users

Cross-industry, Technology, Financial Services, Healthcare, Manufacturing, Education, Retail

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; GDPR; HIPAA; PCI DSS

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Asset Discovery

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Shodan InternetDB

byShodanVerified

Austin, Texas, USA1-10

Shodan InternetDB helps teams with SIEM alert context. Explore features like network tags, cloud deployment and the closest Attack Surface Management competitors.

Automated threat enrichmentFast IP reconnaissanceSIEM alert contextExternal attack surface mapping

Deployment

Cloud

Integrations

REST API, Python, Go +3

Target Users

Cross-industry, Cybersecurity Research, Financial Services, Technology, Defense

Enterprise Ready:REST APICompliance: Open intelligence / Public internet data

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Asset Discovery

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Armis Centrix

byArmisVerified

San Francisco, California, USA501-1,000

Armis Centrix helps teams with connected asset discovery. Explore features like dynamic risk scoring, cloud deployment and the closest Exposure Management competitors.

Connected asset discoveryCyber asset attack surface managementUnmanaged IoT defenseAutomated network quarantine

Deployment

SaaS, Cloud

Integrations

ServiceNow, Splunk, CrowdStrike +4

Target Users

Cross-industry, Healthcare, Manufacturing, Energy, Finance, Retail, Financial Services, Technology

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; HIPAA; NIST SP 800-53; IEC 62443

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DAST

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Detectify

byDetectifyVerified

Stockholm, Sweden51-200

Evaluating Detectify? See how this Attack Surface Management tool handles DNS monitoring and OWASP Top 10 scanning, where it fits best and which alternatives to compare.

External attack surface managementAutomated web vulnerability scanningShadow IT detectionContinuous AppSec testing

Deployment

SaaS, Cloud

Integrations

Jira, GitHub, GitLab +4

Target Users

Technology, SaaS, Financial Services, E-Commerce, Media, Software, Retail & E-Commerce

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; GDPR

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Vulnerability Scanning

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Intruder

byIntruderVerified

London, United Kingdom51-200

Intruder helps teams with continuous audit compliance. Explore features like emerging threat scans, cloud deployment and the closest Vulnerability Management competitors.

External attack surface managementAutomated vulnerability scanningProactive zero-day detectionContinuous audit compliance

Deployment

SaaS, Cloud

Integrations

AWS, Microsoft Azure, Google Cloud +5

Target Users

Technology, Financial Services, Healthcare, E-commerce, Professional Services, Retail

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2; ISO 27001; Cyber Essentials; HIPAA; PCI DSS

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Attack Surface Management

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Tenable Attack Surface Management

byTenableVerified

Columbia, Maryland, USA1,500+

Tenable Attack Surface Management: open port alerts and Tenable One sync. Built for shadow IT elimination. Compare Attack Surface Management alternatives.

Shadow IT eliminationExternal attack surface mappingContinuous asset inventoryM&A asset discovery

Deployment

SaaS, Cloud

Integrations

Tenable One, Tenable Vulnerability Management, ServiceNow +2

Target Users

Enterprise IT, Financial Services, Healthcare, Public Sector, Retail, Higher Education, Government

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; HIPAA; PCI-DSS; NIST SP 800-53

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#10

Attack Surface Management

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Bishop Fox Cosmos

byBishop FoxVerified

Tempe, Arizona, USA201-500

Bishop Fox Cosmos is a continuous attack surface management & PTaaS used for CASM. Highlights include jira sync. Compare it with other Attack Surface Management tools.

Attack Surface ManagementPenetration TestingExposure ManagementCASM

Deployment

SaaS, Cloud

Integrations

AWS, Azure, GCP +4

Target Users

Global Enterprise, FinTech, Healthcare, Tech, Defense

Enterprise Ready:SSO ReadyRBACREST APICompliance: CREST; SOC 2 Type II; ISO 27001; PCI-DSS; HIPAA

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#11

Digital Risk Protection

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CloudSEK Digital Risk Protection

byCloudSEKVerified

Singapore201-500

Looking for Digital Risk Protection software? CloudSEK Digital Risk Protection by CloudSEK provides brand protection for Dark Web. Compare features and alternatives.

Digital Risk ProtectionThreat IntelligenceAttack Surface ManagementDark Web

Deployment

SaaS, Cloud

Integrations

Jira, ServiceNow, Splunk +2

Target Users

Financial, E-commerce, Critical Infrastructure, Tech, Healthcare

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; GDPR

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#12

Digital Risk Protection

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Cyble Digital Risk Protection

byCybleVerified

Atlanta, Georgia, USA201-500

Cyble Digital Risk Protection is an AI-Driven digital risk protection & threat intelligence for Dark Web. See features and Digital Risk Protection alternatives.

Digital Risk ProtectionThreat IntelligenceAttack Surface ManagementDark Web

Deployment

SaaS, Cloud

Integrations

Jira, ServiceNow, Splunk +3

Target Users

Financial, Critical Infrastructure, Telecom, Enterprise, Healthcare

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; GDPR

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#13

Attack Surface Management

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Outpost24 Attack Surface Management

byOutpost24Verified

Stockholm, Sweden500+

Outpost24 Attack Surface Management: shadow IT detection and SSL certificate tracking. Built for external asset discovery. Compare Attack Surface Management alternatives.

External asset discoveryShadow IT cleanupPerimeter vulnerability prioritizationM&A cyber due diligence

Deployment

SaaS, Cloud

Integrations

Outpost24 Suite, Jira, ServiceNow +4

Target Users

Financial Services, Retail, Government, Healthcare, Enterprise

Enterprise Ready:SSO ReadyRBACREST APICompliance: ISO 27001; SOC 2; GDPR; NIST CSF

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#14

Security Operations

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Rapid7 Command Platform

byRapid7Verified

Boston, Massachusetts, USA3,000+

Free trial available. Rapid7 Command Platform by Rapid7 offers cloud CNAPP integration. Compare features, use cases and leading Security Operations alternatives.

Unified exposure managementModernized SOC operationsCross-stack incident responseCyber asset risk governance

Deployment

SaaS, Cloud, Hybrid

Integrations

AWS, Microsoft Azure, Google Cloud +3

Target Users

Financial Services, Healthcare, Government, Retail, High Tech, Banking, Technology, Manufacturing

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; PCI-DSS; HIPAA; NIST CSF

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#15

Attack Surface Management

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XM Cyber External Attack Surface Management

byXM CyberVerified

Tel Aviv, Israel500+

XM Cyber External Attack Surface Management: rogue asset alerting. Built for external attack surface discovery. Compare Attack Surface Management alternatives.

External attack surface discoveryShadow IT detectionPerimeter exposure reductionInternet asset inventory

Deployment

SaaS, Cloud

Integrations

XM Cyber Exposure Platform, SIEM, Webhooks +1

Target Users

Financial Services, Healthcare, Technology, Enterprise, Retail, Energy

Enterprise Ready:SSO ReadyRBACREST APICompliance: ISO 27001; SOC 2; GDPR

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#16

Exposure Management

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CrowdStrike Falcon Exposure Management

byCrowdStrikeVerified

Austin, Texas, USA5,000+

CrowdStrike Falcon Exposure Management: IT hygiene tracking and vulnerability management. Built for shadow IT asset discovery. Compare Exposure Management alternatives.

Shadow IT asset discoveryVulnerability prioritizationExternal attack surface mappingCompliance audit readiness

Deployment

SaaS, Cloud

Integrations

ServiceNow, Jira, Microsoft Intune +2

Target Users

Financial Services, Healthcare, Government, Technology, Enterprise, Cross-industry

Enterprise Ready:SSO ReadyRBACREST APICompliance: PCI-DSS; HIPAA; ISO/IEC 27001; NIST SP 800-53; SOC 2 Type II

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#17

Attack Surface Management

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Httpx

byProjectDiscoveryVerified

Global / Remote11-50

Evaluating Httpx? See how this Attack Surface Management tool handles HTTP header analysis and TLS probing, where it fits best and which alternatives to compare.

Attack Surface ManagementWeb DiscoveryAsset DiscoveryReconnaissance

Deployment

Cloud

Integrations

Linux CLI, macOS, Windows +1

Target Users

Security Engineers, Auditors, Bug Bounty Hunters

Enterprise Ready:Compliance: Open Source (MIT License)

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#18

Attack Surface Management

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OWASP Amass

byOWASPVerified

Global nonprofit organization11-50

OWASP Amass offers OSINT source scraping and active & passive DNS enumeration. Use it for external asset discovery. See Attack Surface Management alternatives.

External asset discoverySubdomain enumerationOSINT reconnaissancePenetration testing scoping

Deployment

On-Premise

Integrations

Neo4j, PostgreSQL, Maltego +2

Target Users

Security Researchers, Penetration Testers, AppSec Teams, Enterprise IT

Enterprise Ready:REST APICompliance: Open-source Apache 2.0; OWASP Project Standards

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#19

Attack Surface Management

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Randori Attack Surface Management

byRandoriVerified

Dallas, Texas, USA51-200

Randori Attack Surface Management: shadow IT identification. Built for external asset discovery and shadow IT elimination. Compare Attack Surface Management alternatives.

External asset discoveryShadow IT eliminationThreat surface prioritizationCompliance validation

Deployment

SaaS, Cloud

Integrations

IBM QRadar, ServiceNow, Jira +2

Target Users

Financial Services, Government, Technology, Healthcare, Manufacturing

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; GDPR; NIST Cybersecurity Framework

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#20

Attack Surface Management

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Recorded Future Attack Surface Intelligence

byRecorded FutureVerified

Somerville, Massachusetts, USA1,000+

Recorded Future Attack Surface Intelligence: risk-based scoring and certificate tracking. Built for digital asset discovery. Compare Exposure Management alternatives.

Digital asset discoveryPerimeter exposure reductionThird-party subsidiary monitoringThreat-informed exposure management

Deployment

SaaS, Cloud

Integrations

Recorded Future Intelligence Cloud, Splunk, ServiceNow +2

Target Users

Financial Services, Defense, Technology, Healthcare, Critical Infrastructure

Enterprise Ready:SSO ReadyRBACREST APICompliance: SOC 2 Type II; ISO 27001; GDPR; FedRAMP Authorized

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Frequently Asked Questions

Quick answers about Top Attack Surface Management Vendors.

Which are the top Attack Surface Management vendors on Cyber Rank?

Top Attack Surface Management Vendors currently lists 20 products, in editorial order: #1 Cortex Xpanse (Palo Alto Networks), #2 Balbix Cyber Risk Platform, #3 Censys ASM, #4 RunZero Asset Inventory, #5 Shodan InternetDB, #6 Armis Centrix, #7 Detectify, #8 Intruder, #9 Tenable Attack Surface Management, #10 Bishop Fox Cosmos, #11 CloudSEK Digital Risk Protection, #12 Cyble Digital Risk Protection, #13 Outpost24 Attack Surface Management, #14 Rapid7 Command Platform, #15 XM Cyber External Attack Surface Management, #16 CrowdStrike Falcon Exposure Management, #17 Httpx (ProjectDiscovery), #18 OWASP Amass, #19 Randori Attack Surface Management, #20 Recorded Future Attack Surface Intelligence.

Which product is ranked #1 in Top Attack Surface Management Vendors?

Cortex Xpanse by Palo Alto Networks is ranked first by the Cyber Rank editorial team.

View Cortex Xpanse →

How is Top Attack Surface Management Vendors put together?

The Cyber Rank editorial team selects the products on this list and decides their order after reviewing each product's features, deployment options, integrations, industry fit and vendor background. It is not a market-share or customer-review ranking.

Which products appear here?

Products that our editors picked for Attack Surface Management and that have a published Cyber Rank profile.

Can a product appear in other rankings?

Yes. Editors can list a product in any ranking where it is a strong fit, so it may appear in several.