CISO Tribune

Vendor comparison · 2 companies

Leidos vs VulnCheck

Leidos is a technology company that serves government and commercial customers with digital and mission innovations, with AI, cyber and mission software at its core. VulnCheck sells a Cyber Threat Intelligence platform that provides exploit and vulnerability intelligence for prioritizing and remediating vulnerabilities. CISO Tribune files both under Vulnerability management. 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.

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  • Leidos
  • VulnCheck
Leidos vs VulnCheck: Products, Customers and Funding Compared
LeidosLeidos is a technology company that serves government and commercial customers with digital and mission innovations, with AI, cyber and mission software at its core.leidos.comVulnCheckVulnCheck sells a Cyber Threat Intelligence platform that provides exploit and vulnerability intelligence for prioritizing and remediating vulnerabilities.vulncheck.com
What it sells
  • Parcata[1]A tool that discovers, validates and prioritizes software vulnerabilities across mission-critical systems to focus remediation efforts.
  • UpHold[1]A platform that combines proactive defense and AI-driven analytics to reduce cyber risk and help security teams prioritize and respond to alerts.
  • Cyber and Electromagnetic Activities Resiliency System (CRS)[1]A system that provides real-time detection and AI-enabled analytics to give earlier warning of threats to tactical systems.
  • Exploit & Vulnerability Intelligence[1][4][5][10][11][15]Early access to new vulnerability information not found in the NVD, with dozens of unique fields.
  • Initial Access Intelligence[1][5][8]In-house developed exploit PoCs, packet captures and Suricata signatures for initial access vulnerabilities.
  • VulnCheck for Government[16]Features, functionality and data available only to Government partners.
Categories
Headquarters
Reston, Virginia, United States[2][12]Lexington, United States[3]
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Public (NYSE: LDOS)[2][8][11][13][17][20]Privately held[2]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • October 2, 2026Leidos has a new joint venture, operating under the Analogic brand, that combines security screening technologies, engineering expertise and advanced manufacturing capabilities.[10]
  • September 29, 2026Leidos introduced a capability that uses AI agents to help security operations center teams identify threats needing immediate action.[9]
  • March 30, 2026Leidos completed its acquisition of ENTRUST Solutions Group from Kohlberg for approximately $2.4 billion.[20]
  • March 30, 2026Leidos added ENTRUST through an acquisition, gaining more than 3,100 professionals in electric grid engineering and natural gas infrastructure.[8]
  • March 10, 2026Leidos announced a partnership with Dropzone AI to help U.S. federal agencies respond to cyber threats, and made a strategic investment in Dropzone AI.[21]
  • February 17, 2026VulnCheck announced it raised $25 million in new funding to scale its growth and expand its intelligence capabilities.[19]
  • February 17, 2026VulnCheck announced a $25 million Series B round led by Sorenson Capital, with National Grid Partners and existing investors also taking part.[12]
  • February 17, 2026Axios reported that VulnCheck raised a $25 million Series B round led by Sorenson Capital.[14]
  • December 8, 2025VulnCheck announced two executive hires: Mike Price as Vice President of Product & Engineering and Jon Loehr as Vice President of Finance.[13]
G2 and Gartner Peer Insights
  • G2: listed, seen November 5, 2026[11]
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, Leidos sells mainly to government and commercial customers. Leidos names the defense, intelligence, civil and health markets. Leidos Australia has partnered with government, defence and national security customers. Leidos provides engineering services for commercial electric utilities. Leidos describes DISN services delivered to the Department of War (DoW) and national security organizations worldwide.Not written yet
Last verified
October 12, 2026November 2, 2026

Where they overlap

  • Leidos and VulnCheck are both filed under Vulnerability management.
  • Both are headquartered in the United States.

Where they differ, field by field

  • Leidos's primary category is Security consulting and advisory; VulnCheck's is Threat intelligence.
  • Leidos is also filed under AI SOC analysts and Managed security service providers.
  • Leidos lists Parcata, UpHold and Cyber and Electromagnetic Activities Resiliency System (CRS). VulnCheck lists Exploit & Vulnerability Intelligence, Initial Access Intelligence and VulnCheck for Government.
  • Leidos is headquartered in Reston, Virginia, United States. VulnCheck is headquartered in Lexington, United States.
  • Leidos is a public company listed on NYSE as LDOS. VulnCheck is privately held.

What it sells: VulnCheck

What Exploit & Vulnerability Intelligence does[1][4][5][10][11][15]
Exploit & Vulnerability Intelligence is offered for decisions on which vulnerabilities need immediate remediation. It gives early access to new vulnerability information not found in the NVD, along with dozens of unique fields. It includes an exploitation timeline covering when a vulnerability was first disclosed, when evidence of exploitation was first discovered and when it was remediated.
What Initial Access Intelligence does[1][5][8]
VulnCheck develops exploit PoCs, packet captures, and Suricata signatures in house. They are used to defend against initial access vulnerabilities.
What VulnCheck for Government does[16]
VulnCheck for Government includes features, functionality and data. They are available only to VulnCheck's Government partners.

Questions about Leidos and VulnCheck

What do Leidos and VulnCheck sell?
Leidos sells Parcata, UpHold and Cyber and Electromagnetic Activities Resiliency System (CRS). VulnCheck sells Exploit & Vulnerability Intelligence, Initial Access Intelligence and VulnCheck for Government.
Are Leidos and VulnCheck in the same category?
They share Vulnerability management. Leidos's primary category is Security consulting and advisory and VulnCheck's is Threat intelligence.
Where are Leidos and VulnCheck headquartered?
Leidos is headquartered in Reston, Virginia, United States. VulnCheck is headquartered in Lexington, United States.
Who owns Leidos and VulnCheck?
Leidos is a public company listed on NYSE as LDOS. VulnCheck is privately held.
Who are Leidos and VulnCheck sold to?
From its own pages, Leidos sells mainly to government and commercial customers.
What have Leidos and VulnCheck announced recently?
October 2, 2026: Leidos has a new joint venture, operating under the Analogic brand, that combines security screening technologies, engineering expertise and advanced manufacturing capabilities. February 17, 2026: VulnCheck announced it raised $25 million in new funding to scale its growth and expand its intelligence capabilities.

About Leidos

Leidos is a technology company that serves government and commercial customers with digital and mission innovations, with AI, cyber and mission software at its core. Leidos says its solutions are engineered for rapid deployment, scalable performance and consistent results. Leidos works across the defense, intelligence, civil and health markets.[14]

Leidos says its cyber operations work is AI-enabled and adapts to evolving threats, accelerates decisions and strengthens mission resilience. Leidos describes secure, scalable software that delivers new capabilities faster and adapts as missions evolve. Leidos describes proving what works and scaling it fast, from missiles and sensors to maritime autonomy. Leidos describes AI-enabled health solutions that strengthen access and outcomes.[15]

Leidos says one of its sectors delivers performance-based IT services and repeatable solutions. Leidos says its digital engineering approach to IT transformation applies cloud-factory and aaS (as a Service) capabilities and integrates commercial products.[16]

Leidos is headquartered in Reston, Virginia, with approximately 50,000 global employees. Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. Leidos trades on the NYSE under the symbol LDOS. Engineering and technology for secure energy infrastructure is a strategic focus for Leidos under its NorthStar 2030 growth strategy.

More than 1,400 Leidos employees contribute in the UK and Europe, a region Leidos says plays a central role in its future growth strategy. Leidos Australia designs, builds, operates and supports systems, services and capabilities that help protect and advance the Australian way of life. Leidos Israel partners with the local technology eco-system to develop in-country talent. Leidos says it relies on enduring partnerships to provide practical answers to some of the Gulf region's most complex challenges. Leidos Canada provides a wide range of technology services to government agencies and private enterprise.[3][18]

The C5ISR Center Cyber Security Service Provider (CSSP) is a defensive cyber operations organization supporting the Department of War (DoW). DISA delivers Defense Information Systems Network (DISN) services to the Department of War (DoW) and national security organizations worldwide. Leidos operates a geographically dispersed team of more than 240 professionals providing 24x7x365 support for DISN services. Leidos says that team works to ensure the availability, reliability and operational resilience of DISN services through proactive network monitoring, incident management, service restoration and infrastructure sustainment.[5][14][19]

Leidos has signed a definitive agreement to acquire ENTRUST Solutions Group from Kohlberg for approximately $2.4 billion. Leidos says the acquisition brings it into the utility gas and electric generation infrastructure markets and would double the size of its $600 million energy infrastructure engineering business. Leidos expects the transaction to close by the end of the second quarter of 2026. Leidos has provided engineering services for commercial electric utilities, focused on transmission and distribution, for more than two decades. ENTRUST Solutions Group has 3,100+ professionals across 40+ locations in North America providing engineering, consulting, design, asset integrity, data solutions and automation services to utilities, operators and industrial customers.

Leidos operates the Saxton Transportation Operations Laboratory (STOL), a USDOT research lab focused on improving transportation operations, safety, mobility and environmental impacts. Leidos has a customer service team that supports the US Department of Housing and Urban Development (HUD), Office of Single-Family Housing.[1][3][4][5][6][7][18][19]

Leidos on the record

Sources

Leidos full record

  1. [1]CyberLeidos · leidos.com · undated page, accessed October 12, 2026 · Tier A
  2. [2]Leidos delivers strong second quarter and enhances full yearPRNewswire · investors.leidos.com · published August 4, 2026 · Tier A
  3. [3]Platform Engineer in Australia (No Remote)Leidos · undated page, accessed November 1, 2026 · Tier A
  4. [4]Azure Cloud Security Engineeer in Adelphi, Maryland (Hybrid Remote)Leidos · undated page, accessed November 1, 2026 · Tier A
  5. [5]Senior AI Platform Engineer in Adelphi, Maryland (Remote)Leidos · undated page, accessed November 1, 2026 · Tier A
  6. [6]Production Technician in Australia (No Remote)Leidos · undated page, accessed November 1, 2026 · Tier A
  7. [7]Transportation Data Scientist (AI Solutions) in McLean, Virginia (No Remote)Leidos · undated page, accessed November 1, 2026 · Tier A
  8. [8]Leidos completes $2.4 billion acquisition of ENTRUSTLeidos · published March 30, 2026 · Tier A
  9. [9]Leidos launches agentic AI platform to speed response to cyber threatsLeidos · published September 29, 2026 · Tier A
  10. [10]Leidos Security Enterprise Solutions and Analogic close deal to strengthen global security screening capabilitiesLeidos · published October 2, 2026 · Tier A
  11. [11]Leidos Reviews 2026: Details, Pricing, & Features | G2G2 · undated page, accessed November 1, 2026 · Tier C
  12. [12]Customer Service Representative in Indianapolis, Indiana (No Remote)Leidos · undated page, accessed November 5, 2026 · Tier A
  13. [13]Global | LeidosLeidos · undated page, accessed November 5, 2026 · Tier A
  14. [14]Deputy Operations Service Delivery Manager (SDM) in Scott Air Force Base, Illinois (No Remote)Leidos · undated page, accessed November 5, 2026 · Tier A
  15. [15]Leidos. Outsmart. Outdo.Leidos · undated page, accessed November 5, 2026 · Tier A
  16. [16]Tier 1 Customer Service Representative in Remote, US (Remote)Leidos · undated page, accessed November 5, 2026 · Tier A
  17. [17]Leidos to acquire power design firm ENTRUST, bolstering its energy infrastructure portfolio | LeidosLeidos · published January 26, 2026 · Tier A
  18. [18]Platform Engineer in Australia (Hybrid Remote)Leidos · undated page, accessed November 5, 2026 · Tier A
  19. [19]Cybersecurity Project Manager in Adelphi, Maryland (Hybrid Remote)Leidos · undated page, accessed November 5, 2026 · Tier A
  20. [20]Leidos completes $2.4 billion acquisition of ENTRUSTPR Newswire · published March 30, 2026 · Tier A
  21. [21]Leidos, Dropzone AI to accelerate federal agencies' cyber responsesLeidos · published March 10, 2026 · Tier A

VulnCheck full record

  1. [1]vulncheck.comVulnCheck · vulncheck.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]Series aVulnCheck · vulncheck.com · published March 18, 2025 · Tier A
  3. [3]PrivacyVulnCheck · vulncheck.com · undated page, accessed September 27, 2026 · Tier A
  4. [4]Introduction - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  5. [5]VulnCheck - Outpace AdversariesVulnCheck · undated page, accessed October 30, 2026 · Tier A
  6. [6]Canary Intelligence - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  7. [7]Target Intelligence - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  8. [8]Initial Access Intelligence - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  9. [9]Query Parameters - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  10. [10]Package Manager Support - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  11. [11]NVD Migration - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  12. [12]VulnCheck Raises $25M Series B Financing to Address Surging Demand for its Exploit Intelligence SolutionsVulnCheck · published February 17, 2026 · Tier A
  13. [13]VulnCheck Announces Strategic Leadership Appointments to Accelerate GrowthVulnCheck · published December 8, 2025 · Tier A
  14. [14]Exclusive: VulnCheck nabs $25M Series B fundingAxios · published February 17, 2026 · Tier B
  15. [15]Exploit & Vulnerability Intelligence | Products | VulnCheckVulnCheck · undated page, accessed November 10, 2026 · Tier A
  16. [16]Products | VulnCheckVulnCheck · undated page, accessed November 10, 2026 · Tier A
  17. [17]Company | VulnCheckVulnCheck · undated page, accessed November 10, 2026 · Tier A
  18. [18]Service Terms | VulnCheckVulnCheck · published April 20, 2026 · Tier A
  19. [19]VulnCheck raises $25M to expand real-time exploit intelligence platformSiliconANGLE · published February 17, 2026 · Tier B

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