Defense tech encompasses startups whose primary buyers are defense departments, intelligence agencies, and prime contractors — building dual-use or mission-specific capabilities for national security.

How it works

Companies range from AI targeting tools and autonomous systems to secure communications and supply-chain logistics. Revenue paths include SBIR/STTR grants, Other Transaction Authority (OTA) agreements, direct program contracts, and subcontracting through primes like Lockheed or Anduril partners.

Sales cycles stretch years: certifications, FedRAMP or IL5 compliance, facility clearances, and congressional budget lines. Founders often hire retired officers or former acquisition officials as advisors.

Venture interest resurged as geopolitical tension rose and software ate more of defense budgets. Funds specialize in “dual-use” — commercial products with defense upside — to avoid single-customer dependency.

Export controls (ITAR/EAR) and classified work constrain who can invest and which cap table names pass government review.

Why it matters

• Founders: Plan for slow first dollars and heavy compliance investment. Milestones are contract awards and authority to operate, not just product demos.
• Investors: Defense tech can produce durable revenue but needs patient capital and government relations expertise. Due diligence covers security clearance roadmaps and budget dependency.

Common mistake

Assuming a commercial SaaS GTM works unchanged. Without cleared environments and procurement literacy, pilots stall in legal review.

Related ideas

See also deep tech, dual-use technology, ITAR, and prime contractor partnering.