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National Security Startups

Updated August 2026

Companies in the national security sector developing innovative solutions and technologies.

Explore 120 recently funded national security companies with verified founder contact information and fundraising data.

Total Companies
120
Total Funding
$6.7B
Avg Funding
$269.4M
Global Reach
3
countries

Top Cities for National Security

Huntington Beach
San Diego
Rockville
San Antonio
Boston
Herndon

Recently Funded Companies

Export
Huntington Beach, United States

Mach Industries is a defense manufacturing company that develops unmanned systems and defense infrastructure.

$300.0M raised
Jun 2026

Founder Contacts

41,000+ verified contacts

San Diego, United States

Reaxiomatic focuses on initiatives and projects aimed at increasing American capability.

$7.3M raised
Jun 2026

Founder Contacts

41,000+ verified contacts

Rockville, United States

Quantum Space provides data buy services, deploys spacecraft, and performs space logistics for partners.

$40.0M raised
Jun 2025

Founder Contacts

41,000+ verified contacts

San Antonio, United States

Darkhive develops autonomous robotics systems focused on small unmanned aircraft used for defense and public safety applications.

$30.0M raised
May 2026

Founder Contacts

41,000+ verified contacts

Boston, United States

Guardion is making the world safer from radiological and nuclear threats with quantum technology radiation detectors.

$100K raised
May 2024

Founder Contacts

41,000+ verified contacts

Herndon, United States

HawkEye 360 detects, geolocates, and characterizesvarious RF signals using its satellite constellation in low Earth orbit.

$125.0M raised
May 2026

Founder Contacts

41,000+ verified contacts

Arlington, United States

Quartermaster AI is a defense technology company that develops real-time distributed marine software via AI robot technology.

$43.0M raised
May 2026

Founder Contacts

41,000+ verified contacts

Washington, United States

Freed Strategy provides strategic communications, crisis advisory, and reputation management services for executives and organizations.

$1.8M raised
May 2022

Founder Contacts

41,000+ verified contacts

Tampa, United States

Orion Edge Group Provides mobile and flexible offensive electromagnetic warfare for the warfighter.

$3.0M raised
May 2026

Founder Contacts

41,000+ verified contacts

El Segundo, United States

Intercepting tomorrow's threats, today.

$5.0M raised
May 2026

Founder Contacts

41,000+ verified contacts

Wrexham, United Kingdom

K3 Metrology is an NPL‑spun metrology startup building advanced‑manufacturing measurement systems for aerospace, defence, and nuclear.

$3.7M raised
May 2026

Founder Contacts

41,000+ verified contacts

Rochester, United States

Circle Optics has developed the world's first parallax-free 360-degree camera. We can capture 4K 360-degree video without post-processing.

$450K raised
May 2024

Founder Contacts

41,000+ verified contacts

Bristol, United Kingdom

Rowden Technologies is an independent digital systems integrator that solves complex government problems with advanced solutions.

$33.8M raised
May 2026

Founder Contacts

41,000+ verified contacts

Costa Mesa, United States

Anduril Industries is a defense technology company that specializes in developing advanced autonomous systems to enhance national security.

$5.0B raised
May 2026

Founder Contacts

41,000+ verified contacts

Denver, United States

Thalorin develops regulatory compliance management software solutions.

$2.5M raised
May 2025

Founder Contacts

41,000+ verified contacts

Kihei, United States

Privateer develops data infrastructure to power sustainable growth for the new space economy.

Apr 2025

Founder Contacts

41,000+ verified contacts

San Francisco, United States

Spire Global is a space to cloud data analytics company utilizing satellites to provide maritime, aviation, and weather tracking.

$70.0M raised
Apr 2026

Founder Contacts

41,000+ verified contacts

El Segundo, United States

Gallatin is a logistics platform that offers AI-powered decision support for the defense industry.

$15.0M raised
Apr 2025

Founder Contacts

41,000+ verified contacts

Los Angeles, United States

Behavioral Advanced AI that understands human emotion and behavior from voice. Call Center Solutions & Deepfake Speech Detection.

Apr 2022

Founder Contacts

41,000+ verified contacts

Centennial, United States

True Anomaly develops space security technologies, including spacecraft, software platforms, and mission systems for orbital operations.

$600.0M raised
Apr 2026

Founder Contacts

41,000+ verified contacts

London, United Kingdom

Spaceflux develops optical sensor networks and analytics platforms to track objects in Earth orbit.

$4.7M raised
Apr 2026

Founder Contacts

41,000+ verified contacts

Mclean, United States

Rilian is a cybersecurity innovator that provides an agentic systems integrator for the AI-native security sector.

$17.5M raised
Apr 2026

Founder Contacts

41,000+ verified contacts

Cambridge, United States

Vulcan Elements is a manufacturer of rare-earth magnets used in critical defense and commercial applications.

$430.7M raised
Apr 2026

Founder Contacts

41,000+ verified contacts

Richmond, Canada

Ideon Technologies is a world pioneer in the application of cosmic-ray muon tomography.

$1.7M raised
Apr 2026

Founder Contacts

41,000+ verified contacts

Wilmington, United States

Osavul is a cybersecurity company that offers AI-based software to protect from information threats.

Apr 2026

Founder Contacts

41,000+ verified contacts

Showing 26 to 50 of 120 companies

About the National Security Startup Ecosystem

The national security sector is an active area of startup innovation and venture capital investment. Companies in this space are developing new technologies, platforms, and services that address evolving market needs and create new business opportunities.

Funding Trends in National Security

National Security companies raise capital across various funding stages, from early seed rounds to late-stage growth financing. Investor interest in this sector is driven by the size of the addressable market, the pace of technology adoption, and the potential for scalable business models.

Growth Outlook

The national security sector is expected to continue evolving as technology advances, market dynamics shift, and new opportunities emerge. Companies that demonstrate strong product-market fit, efficient growth, and clear competitive advantages are well-positioned to attract continued investment.

National Security Funding Breakdown

Here is how funding is distributed among the 120 national security companies tracked in the VCBacked database.

Average Funding
$269.4M
Total Funding Tracked
$6.7B
Countries Represented
3

Distribution by Funding Stage

Other25 companies

Top Cities for National Security

1.El Segundo
2 companies$20.0M
2.Huntington Beach
1 companies$300.0M
3.San Diego
1 companies$7.3M
4.Rockville
1 companies$40.0M
5.San Antonio
1 companies$30.0M

Related Industries

Companies in the national security sector often overlap with or complement businesses in adjacent industries. Exploring related verticals can help you discover additional companies, identify partnership opportunities, and understand the broader competitive landscape.

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