Top 16 Cyberdefense startups

Updated: Nov 29, 2025
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These are companies that have contracts with Defense or Military organizations to cyber protect their operations.
1
Raytheon
Country: USA | Funding: $3.2M
Developer of the air defense systems (Patriot), missile systems (Tomahawk), man-portable air-defense systems Stinger.
2
Booz Allen
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.
3
Lockheed Martin
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.
4
SandboxAQ
Country: USA | Funding: $975M
SandboxAQ develops several AI-based technologies for the military industry, including the AQtive Guard platform for managing cryptography and non-human-based identification, which provides cybersecurity for national IT infrastructure. The company also creates AQNav quantum devices for the Defense Innovation Unit for assured positioning, navigation and timing (APNT). QNav provides a jam-resistant, all-weather, terrain-independent, passive solution in situations where GPS signals are unavailable, jammed or spoofed. SandboxAQ is also conducting a joint battery analysis program with the US Army.
5
Shift5
Country: USA | Funding: $180.5M
Shift5 is a cybersecurity company that provides hardware and software solutions to defend operational technology (OT) platforms.
6
BAE Systems
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.
7
QOMPLX
Country: USA | Funding: $107M
QOMPLX' Identity Threat Detection and Response (ITDR) solution continuously validates to prevent network takeovers.
8
Recorded Future
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.
9
EclecticIQ
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.
10
Defense Unicorns
Country: USA | Funding: $35.5M
Defense Unicorns is a software startup that provides open-source software and AI capabilities for National Security systems.
11
DeNexus
Country: USA | Funding: $32.8M
DeNexus provides a full stack solution for OT cyber risk quantification and management.
12
Sense Defence
Country: UK | Funding: $300K
Sense Defence develops Next Generation Web Security Platform
13
ARMS Cyber
Country: USA
ARMS Cyber provides cybersecurity defense solutions for organizations.
14
Peraton
Country: USA
Fearlessly solving the world's most complex challenges to keep people safe and secure.
15
Decent Cybersecurity
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.
16
GovSky
Country: USA
GovSky builds a cybersecurity compliance software platform for defense contractors.
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Bruce Makowsky
Editor: Bruce Makowsky
Bruce Makowsky has covered military, cyber and IT news since 2009, with a focus on U.S. Navy and Marine Corps operations, acquisition programs and budgets. In particular he worked for Inside Defense. Bruce holds a Master of Science degree in journalism from Boston University. Bruce is also an award-winning photographer, renowned for his captivating images that have earned him numerous accolades and widespread recognition in the photography community. You can contact Bruce at makowsky(at)militarystartups(dot)com