Top 17 Cyberdefense startups
Sep 11, 2025 | By Bruce Makowsky | 13 |
These are companies that have contracts with Defense or Military organizations to cyber protect their operations.
1
Country: USA | Funding: $180.5M
Shift5 is a cybersecurity company that provides hardware and software solutions to defend operational technology (OT) platforms.
Shift5 is a cybersecurity company that provides hardware and software solutions to defend operational technology (OT) platforms.
2
Country: USA | Funding: $3.7B
Northrop Grumman designs, develops, builds and supports some of the world’s most advanced military products.
Northrop Grumman designs, develops, builds and supports some of the world’s most advanced military products.
3
Country: USA | Funding: $3.2M
Developer of the air defense systems (Patriot), missile systems (Tomahawk), man-portable air-defense systems Stinger.
Developer of the air defense systems (Patriot), missile systems (Tomahawk), man-portable air-defense systems Stinger.
4
Country: USA | Funding: $3B
Booz Allen delivers tomorrow’s technologies at the heart of the defense mission: Multidomain integration for command and control, Immersive training analytics solutions, Geopolitical analysis to anticipate risks, local storage syber defense solution.
Booz Allen delivers tomorrow’s technologies at the heart of the defense mission: Multidomain integration for command and control, Immersive training analytics solutions, Geopolitical analysis to anticipate risks, local storage syber defense solution.
5
Country: USA | Funding: $62M
Lockheed Martin is a security company that engages in the research, development, and manufacture of technology systems and products, including HIMARS, ATACMS, BLACK HAWK Helicopter, F-16 Fighting Falcon.
Lockheed Martin is a security company that engages in the research, development, and manufacture of technology systems and products, including HIMARS, ATACMS, BLACK HAWK Helicopter, F-16 Fighting Falcon.
6
Country: USA | Funding: $975M
SandboxAQ developing practical AI and quantum tech solutions that address the security of US Defense global communications infrastructure.
SandboxAQ developing practical AI and quantum tech solutions that address the security of US Defense global communications infrastructure.
7
Country: UK | Funding: $142.2M
BAE Systems designs, develops, and supports defense and aerospace systems used in the air, on land, at sea, and in space.
BAE Systems designs, develops, and supports defense and aerospace systems used in the air, on land, at sea, and in space.
8
Country: USA | Funding: $107M
QOMPLX' Identity Threat Detection and Response (ITDR) solution continuously validates to prevent network takeovers.
QOMPLX' Identity Threat Detection and Response (ITDR) solution continuously validates to prevent network takeovers.
9
Country: USA | Funding: $79M
Recorded Future develops a single intelligence platform that empowers security teams with real-time alerting and insights into geopolitical events allowing to address the risks immediately.
Recorded Future develops a single intelligence platform that empowers security teams with real-time alerting and insights into geopolitical events allowing to address the risks immediately.
10
Country: Netherlands | Funding: €65.4M
EclecticIQ offers its threat intelligence, hunting and response technology for governmental purposes to help organisations and governments hunt for, detect and respond to cyber risks that threaten their operations.
EclecticIQ offers its threat intelligence, hunting and response technology for governmental purposes to help organisations and governments hunt for, detect and respond to cyber risks that threaten their operations.
11
Country: USA | Funding: $35.5M
Defense Unicorns is a software startup that provides open-source software and AI capabilities for National Security systems.
Defense Unicorns is a software startup that provides open-source software and AI capabilities for National Security systems.
12
Country: USA | Funding: $32.8M
DeNexus provides a full stack solution for OT cyber risk quantification and management.
DeNexus provides a full stack solution for OT cyber risk quantification and management.
13
Country: UK | Funding: $300K
Sense Defence develops Next Generation Web Security Platform
Sense Defence develops Next Generation Web Security Platform
14
Country: USA
Fearlessly solving the world's most complex challenges to keep people safe and secure.
Fearlessly solving the world's most complex challenges to keep people safe and secure.
15
Country: Slovakia
Decent Cybersecurity provides cutting-edge, quantum-resistant cybersecurity solutions that protect vital information and assets, ensuring peace of mind in an age where digital threats are ever-present and increasingly sophisticated.
Decent Cybersecurity provides cutting-edge, quantum-resistant cybersecurity solutions that protect vital information and assets, ensuring peace of mind in an age where digital threats are ever-present and increasingly sophisticated.
16
Country: USA
GovSky builds a cybersecurity compliance software platform for defense contractors.
GovSky builds a cybersecurity compliance software platform for defense contractors.
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