CISO Tribune

Vendor comparison · 2 companies

Bitsight vs GreyNoise

Bitsight delivers a map of assets and vulnerabilities across an enterprise and its supply chain, prioritized by real-time threat intelligence. GreyNoise sells real-time network threat intelligence built on traffic it observes at the network edge. CISO Tribune files both under Threat intelligence. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

Change the companies

Up to four companies side by side.

  • Bitsight
  • GreyNoise
Bitsight vs GreyNoise: Products, Customers and Funding Compared
BitsightBitsight delivers a map of assets and vulnerabilities across an enterprise and its supply chain, prioritized by real-time threat intelligence.bitsight.comGreyNoiseGreyNoise sells real-time network threat intelligence built on traffic it observes at the network edge.greynoise.io
What it sells
  • Vendor Risk Management[5]Helps risk and security teams manage a growing vendor portfolio.
  • Continuous Monitoring[6][11]Delivers daily insight into vendors and their vendors.
  • Security Ratings[2][7]Gives an objective, outside-in measure of supplier cybersecurity performance.
  • Attack Surface Intelligence[2][8]Combines external attack surface intelligence and AI-driven threat intelligence.
  • Cyber Threat Intelligence[2][9]Delivers threat intelligence through the platform and APIs.
  • Supply Chain Exposure Management[2][11]Monitors third-party vendors and sends evidence-backed threat alerts.
  • Third-Party Intelligence[7]Brings supplier security posture and live threat intelligence together.
  • GreyNoise Block[5][11]Real-time blocklists for firewalls, labelled as being for small and mid-sized teams.
  • GreyNoise Platform[4]Platform to investigate any IP or CVE, catch threats hitting the edge, and turn intelligence into automated action.
Categories
Headquarters
Not stated on its pagesWashington, United States
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • March 19, 2026Bitsight introduced Bitsight Security Posture Management, designed to help organizations measure, improve and demonstrate cyber resilience.[15]
  • February 10, 2026Bitsight announced Dark Web Intelligence for Supply Chains, a capability for detecting and responding to threats across vendor ecosystems.[14]
Not stated on its pages
G2 and Gartner Peer Insights
  • G2: listed, seen November 10, 2026[16]
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 5, 2026[13]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetFrom its own pages, GreyNoise sells to enterprise SOCs and to government and national defense operators, with the full platform aimed at organizations of more than 2,500 employees and MSSPs. GreyNoise Block is labelled as being for small and mid-sized teams, and GreyNoise calls it ideal for organizations with fewer than 2,500 employees. GreyNoise says its intelligence plugs into SIEM, SOAR, TIP, and firewall tools that security teams already run. GreyNoise also describes threat hunting teams and vulnerability management teams as users.
Last verified
November 2, 2026September 27, 2026

Where they overlap

  • Bitsight and GreyNoise are both filed under Threat intelligence.

Where they differ, field by field

  • Bitsight's primary category is Third-party risk and security ratings; GreyNoise's is Threat intelligence.
  • Bitsight is also filed under External attack surface management and Vulnerability management.
  • Bitsight lists Vendor Risk Management, Continuous Monitoring, Security Ratings, Attack Surface Intelligence, Cyber Threat Intelligence and 2 more. GreyNoise lists GreyNoise Block and GreyNoise Platform.
  • GreyNoise is headquartered in Washington, United States.

What it sells: Bitsight

What Vendor Risk Management does[5]
Teams build a third-party inventory by inviting vendors to the platform and connecting with them. Teams review uploaded documents in one place, including SOC 2 and ISO 27001 certifications, SIG questionnaires, insurance, and external audits. Bitsight Vendor Risk Management syncs data with GRC and reporting tools, including RSA Archer, ServiceNow, and LogicManager, through an open API.
What Continuous Monitoring does[6][11]
Bitsight Continuous Monitoring delivers daily, objective insight into vendors and their vendors. It includes automatic fourth-party discovery that maps the technology stacks of vendors. It provides 12+ months of risk analytics for every vendor in a portfolio.
What Security Ratings does[2][7]
Bitsight Security Ratings provide an objective, continuously updated view of each supplier's cybersecurity posture. Teams can track whether supplier posture is improving or deteriorating over time. Teams can combine posture with live threat activity to distinguish isolated events from broader weaknesses.
What Attack Surface Intelligence does[2][8]
It inventories internet-facing systems including domains, subdomains, IPs, hosts, software, CVEs, certificates, cloud storage, and exposed services. It detects shadow IT and unsanctioned assets across AWS, Azure, GCP, and SaaS environments.
What Cyber Threat Intelligence does[2][9]
Bitsight delivers cyber threat intelligence in structured, actionable formats through the platform and APIs. Bitsight tracks 700+ ATP groups, 4,000+ malware types, 95M threat actors, 6M unique IOCs, and 1B compromised credentials weekly. Bitsight supports STIX/TAXII and offers simplified, integration-ready data structures.
What Supply Chain Exposure Management does[2][11]
Bitsight Beacon is Bitsight's Supply Chain Exposure Management data solution that continuously monitors third-party vendors and provides triaged, evidence-backed threat alerts for supply chain exposures. Bitsight Beacon alerts are delivered directly into SIEM and SOAR. Bitsight Beacon covers more than 30 threat scenarios.
What Third-Party Intelligence does[7]
Bitsight Third-Party Intelligence brings supplier security posture and live threat intelligence together in one place. It monitors ransomware, data breaches, hacktivism, and cyber news affecting suppliers. Its dashboard gives a centralized view of supplier ratings, threat activity, trends, and adverse events.

What it sells: GreyNoise

What GreyNoise Block does[5][11]
GreyNoise Block turns primary-source edge intelligence from the Global Observation Grid into blocklists for firewalls. Blocklists deploy as standard External Dynamic Lists over HTTPS. GreyNoise says lists refresh every hour. It also offers dozens of out-of-box blocklist templates.
What GreyNoise Platform does[4]
GreyNoise says its platform lets users investigate, enrich, and search GreyNoise's view of the whole internet, for one IP or thousands. Dynamic blocklists turn any GNQL query into a live, API-authenticated URL any firewall or WAF can ingest. Feeds and alerts stream events to a SIEM, SOAR, email, or webhook in real time.

Questions about Bitsight and GreyNoise

What do Bitsight and GreyNoise sell?
Bitsight sells Vendor Risk Management, Continuous Monitoring, Security Ratings, Attack Surface Intelligence, Cyber Threat Intelligence and 2 more. GreyNoise sells GreyNoise Block and GreyNoise Platform.
Are Bitsight and GreyNoise in the same category?
They share Threat intelligence. Bitsight's primary category is Third-party risk and security ratings and GreyNoise's is Threat intelligence.
Where are Bitsight and GreyNoise headquartered?
GreyNoise is headquartered in Washington, United States.
Who are Bitsight and GreyNoise sold to?
From its own pages, GreyNoise sells to enterprise SOCs and to government and national defense operators, with the full platform aimed at organizations of more than 2,500 employees and MSSPs.
What have Bitsight and GreyNoise announced recently?
March 19, 2026: Bitsight introduced Bitsight Security Posture Management, designed to help organizations measure, improve and demonstrate cyber resilience.

About Bitsight

Bitsight delivers a map of assets and vulnerabilities across an enterprise and its supply chain, prioritized by real-time threat intelligence. Bitsight serves both security operations and risk teams across the enterprise. Bitsight scans over 4B+ IPs to discover assets, subsidiaries, cloud environments, and supply chain exposure across connected digital infrastructure. Bitsight predicts the likelihood that a CVE will be exploited using real-time threat intelligence from 7M+ daily items across 1,000+ underground sources. Bitsight identifies compromised credentials, discovers ransomware and active exploits, and prioritizes remediation based on attacker activity from 1,000+ underground sources.[2][3]

Bitsight monitors third-, fourth-, and nth-party exposure across a network of 68K+ vendors. Bitsight Vendor Risk Management lets teams review uploaded documents in one place, including SOC 2 and ISO 27001 certifications, SIG questionnaires, insurance, and external audits. Bitsight Vendor Risk Management syncs data with GRC and reporting tools, including RSA Archer, ServiceNow, and LogicManager, through an open API.[2][3][5][11]

Bitsight Continuous Monitoring delivers daily, objective insight into vendors and their vendors. Bitsight Vulnerability Detection & Response surfaces exposed vendors within hours and helps coordinate cross-vendor response at scale. Bitsight gives vendors free access to Trust Management Hub so that vendors can reach their profiles. Bitsight professional services range from program design aligned to NIST CSF, ISO 27001, DORA, and NIS2 to managed vendor assessments and board-ready reporting.[4][6]

Bitsight AI maps vendor SOC 2 reports, audit reports, and questionnaires to the frameworks teams already use, tracking vendor exposure across the supply chain. SOC2 Instant Insights, powered by Bitsight AI, summarizes SOC 2 reports in seconds. Bitsight Third-Party Intelligence brings supplier security posture and live threat intelligence together in one place. Bitsight Third-Party Intelligence monitors ransomware, data breaches, hacktivism, and cyber news affecting suppliers.[5][7]

Bitsight describes Attack Surface Intelligence (ASI) as an evolution of External Attack Surface Management (EASM) that combines continuous asset discovery with real-time threat intelligence from the clear, deep, and dark web.[2]

Bitsight tracks 700+ ATP groups, 4,000+ malware types, 95M threat actors, 6M unique IOCs, and 1B compromised credentials weekly. Bitsight delivers cyber threat intelligence in structured formats through the platform and APIs. Bitsight supports STIX/TAXII and offers simplified, integration-ready data structures designed to fit into operational workflows and dashboards. The Identity Intelligence Module lets teams automatically reset or disable exposed accounts through native identity provider integrations (Active Directory, Okta, Entra ID). Bitsight threat intelligence services include purchases of compromised credentials listed for sale on the deep and dark web.[2][9]

Bitsight Beacon is Bitsight's Supply Chain Exposure Management data solution that continuously monitors third-party vendors and provides triaged, evidence-backed threat alerts for supply chain exposures. Bitsight Beacon alerts are delivered directly into SIEM and SOAR. Bitsight Beacon covers more than 30 threat scenarios. Optional managed services for Bitsight Beacon handle triage and vendor remediation. Bitsight Continuous Monitoring tracks vendor risk posture over time, and Bitsight Beacon detects active threats in near real-time.[2][6][11]

Bitsight SPM integrates with tools like ServiceNow, Palo Alto Cortex, Splunk, PowerBI, and Microsoft Sentinel. Bitsight is a SaaS platform that is 100% cloud-based in Amazon Web Services. Bitsight is headquartered in the U.S., and all personal data is hosted in the United States. Bitsight complies with the EU-U.S. Data Privacy Framework, the UK Extension, and the Swiss-U.S. Data Privacy Framework. Bitsight has a report on Controls at a Service Organization Relevant to Security available for review.[1][4][5][6][7][12]

Bitsight on the record

Sources

Bitsight full record

  1. [1]Bitsight insurance business grows 30 h1 extending market leadershipBitsight · bitsight.com · published October 9, 2025 · Tier A
  2. [2]bitsight.comBitsight · bitsight.com · undated page, accessed November 2, 2026 · Tier A
  3. [3]Bitsight | The Cyber Risk Platform Trusted by the Fortune 500Bitsight · undated page, accessed November 10, 2026 · Tier A
  4. [4]Bitsight Vendor Network | BitsightBitsight · undated page, accessed November 10, 2026 · Tier A
  5. [5]Vendor Risk Management (VRM) Platform | BitsightBitsight · undated page, accessed November 10, 2026 · Tier A
  6. [6]Third Party Risk Management Solutions | BitsightBitsight · undated page, accessed November 10, 2026 · Tier A
  7. [7]Bitsight Third-Party Intelligence SolutionBitsight · undated page, accessed November 10, 2026 · Tier A
  8. [8]Attack Surface Intelligence Solutions | BitsightBitsight · undated page, accessed November 10, 2026 · Tier A
  9. [9]Cyber Threat Intelligence Data | BitsightBitsight · undated page, accessed November 10, 2026 · Tier A
  10. [10]Identity Intelligence Solutions | BitsightBitsight · undated page, accessed November 10, 2026 · Tier A
  11. [11]Supply Chain Exposure Management | Bitsight BeaconBitsight · undated page, accessed November 10, 2026 · Tier A
  12. [12]SPM Integrations | BitsightBitsight · undated page, accessed November 10, 2026 · Tier A
  13. [13]About Bitsight Security | BitsightBitsight · undated page, accessed November 10, 2026 · Tier A
  14. [14]Bitsight Launches Industry’s First Dark Web Intelligence for Supply Chains, Empowering Organizations to Predict and Prevent Third-Party Exploits | BitsightBitsight · published February 10, 2026 · Tier A
  15. [15]Bitsight Introduces Security Posture Management to Operationalize Enterprise Cyber Resilience | BitsightBitsight · published March 19, 2026 · Tier A
  16. [16]Bitsight Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 10, 2026 · Tier C

GreyNoise full record

  1. [1]Greynoise raises 15 million in series a funding to fight cyber distractions and mass vulnerability exploitationGreyNoise · greynoise.io · published June 15, 2022 · Tier A
  2. [2]ContactGreyNoise · greynoise.io · undated page, accessed September 27, 2026 · Tier A
  3. [3]GreyNoise | Real-Time Network Threat IntelligenceGreyNoise · undated page, accessed October 25, 2026 · Tier A
  4. [4]GreyNoise Platform | Detect, Investigate & Respond FasterGreyNoise · undated page, accessed October 25, 2026 · Tier A
  5. [5]GreyNoise BlockGreyNoise · undated page, accessed October 25, 2026 · Tier A
  6. [6]Early Warning Signs of CVEs | GreyNoise IntelligenceGreyNoise · undated page, accessed October 25, 2026 · Tier A
  7. [7]Threat Hunting | GreyNoise IntelligenceGreyNoise · undated page, accessed October 25, 2026 · Tier A
  8. [8]SOC Efficiency | GreyNoise IntelligenceGreyNoise · undated page, accessed October 25, 2026 · Tier A
  9. [9]Vulnerability Prioritization | GreyNoise IntelligenceGreyNoise · undated page, accessed October 25, 2026 · Tier A
  10. [10]Incident Investigation | GreyNoise IntelligenceGreyNoise · undated page, accessed October 25, 2026 · Tier A
  11. [11]Pricing - Request a quote | GreyNoise BlockGreyNoise · undated page, accessed October 25, 2026 · Tier A
  12. [12]Compromised Asset Detection | GreyNoise IntelligenceGreyNoise · undated page, accessed November 5, 2026 · Tier A
  13. [13]GreyNoise Reviews 2026: Details, Pricing, & Features - G2G2 · undated page, accessed November 5, 2026 · Tier C

Spot a factual error? Request a correction.