All Rankings

Top 100 Defense & Space Tech Companies 2026

The most-funded defense tech and space tech startups, from autonomous systems and dual-use hardware to satellites and launch.

Known total funding for 100 of 100 ranked companies: $88.6B.

Showing top 100 matching companies · Ranked by total funding raised

Use company data through the API.
Example request
curl "https://indexed.vc/api/v1/companies?industries=Defense+Tech,Space+Tech&operatingStatus=active&sort=total_funding_raised&order=desc&limit=100" -H "X-API-Key: YOUR_API_KEY"

The API industry filter also matches related labels: Defense, Aerospace & Defense, Space, Aerospace.

The API has no company type filter, so public companies can appear; this list counts private companies only.

The API cannot leave out companies whose latest round is a grant; this list does.

Data from Indexed.vcUpdated

Methodology: up to 100 active companies matching this list's filters are ordered by disclosed total funding in USD. Companies whose latest round is one of: Grant are excluded. Totals include recorded grants and other qualifying funding, not just equity. Open a company profile for its funding summary and available detail. How this data is built.

26
Boom Supersonic

Boom Supersonic develops Overture, a sustainable supersonic airliner, and Symphony, its dedicated...

Centennial, United States201–500Aerospace, Industrials
Extension RoundTotal funding$890.0MDec 2025
27
CesiumAstro

CesiumAstro designs and manufactures phased-array communications payloads, terminals, and satelli...

Austin, United States201–500Aerospace, Space Tech
Venture RoundTotal funding$882.6MFeb 2026
28
Isar Aerospace

German aerospace company developing launch vehicles for transporting small and medium-sized satel...

Ottobrunn, Germany201–500Space Tech, Aerospace
Series DTotal funding$833.0MJun 2026
29
Axiom Space

Develops and operates commercial human spaceflight services and a commercial space station, and b...

Houston, United States501–1000Hardware, Space Tech
Extension RoundTotal funding$830.0MJun 2026
30
TEKEVER

TEKEVER builds AI-driven autonomous unmanned aerial systems that deliver real-time intelligence f...

Lisbon, Portugal1001–5000Artificial Intelligence, Defense Tech
Series DTotal funding$749.0MSep 2026
31
Xona Space Systems

Xona Space Systems is developing Pulsar, a low-Earth orbit (LEO) satellite constellation providin...

Burlingame, United States51–200Aerospace, Defense Tech
Series DTotal funding$707.7MOct 2026
32
Antares Industries

Antares Nuclear builds factory-produced fission microreactors that supply 100kWe to 1MWe of strat...

Los Angeles, United States51–200Defense Tech, Energy
Series CTotal funding$675.0MJul 2026
33
Robotic Research

Forterra builds autonomous mission systems that integrate mobility, communications, sensing, and ...

Clarksburg, United States201–500Artificial Intelligence, Defense Tech
Series CTotal funding$641.7MNov 2025
34
Stark Defence

STARK builds Virtus, a loitering munition, Vanta, an unmanned surface vessel, and Minerva, comman...

Berlin, Germany201–500Aerospace, Defense Tech
Venture RoundTotal funding$630.0MJun 2026
35
Varda

In-space pharmaceutical manufacturing company that designs, builds, and flies spacecraft to proce...

El Segundo, United States51–200Biotech, Manufacturing
Series DTotal funding$610.3MSep 2026
36
Gilmour Space

Developer of low-cost hybrid rockets designed to launch small satellites into space. The company'...

Gold Coast, Australia51–200Aerospace, Defense Tech
Venture RoundTotal funding$590.0MMar 2026
37
PLD Space

PLD Space develops reusable rockets through vertically integrated design, manufacturing, testing,...

Elche, Spain201–500Space Tech, Manufacturing
Extension RoundTotal funding$557.5MSep 2026
38
Vertex Aerospace

Engineering services company specializing in thermal control system design, analysis, integration...

Rockville, United States51–200Aerospace, Defense Tech
Private EquityTotal funding$540.0M
39
Primer

Primer provides unified payment infrastructure that lets merchants connect providers, orchestrate...

London, United Kingdom51–200Fintech, Developer Tools
Series CTotal funding$537.4MMay 2026
40
Epirus

Epirus develops directed energy and high-power microwave systems, including the Leonidas platform...

Torrance, United States201–500Defense Tech
Series DTotal funding$535.0MMar 2025
41
Apex Space

Apex manufactures configurable satellite bus platforms at scale for commercial and government con...

Los Angeles, United States51–200Aerospace, Manufacturing
Series DTotal funding$535.0MSep 2025
42
CPI International

Developer and manufacturer of microwave, radio frequency (RF), power, and control solutions for d...

Georgetown, United States1001–5000Defense Tech
Private EquityTotal funding$525.0MFeb 2011
43
Hermeus

Hermeus develops high-speed aircraft and propulsion systems for defense missions, using rapid ite...

Atlanta, United States201–500Aerospace, Defense Tech
Series CTotal funding$502.1MApr 2026
44
Skyryse

Aviation technology company ushering in a new era of flight safety with automation.

El Segundo, United States51–200Defense Tech
Series CTotal funding$500.0MFeb 2026
45
Muon Space

Designs, builds, and operates mission-optimized satellite constellations delivering Earth-observa...

Mountain View, United States51–200Data & Analytics, Hardware
Series CTotal funding$491.9MAug 2026
46
PhysicsX

PhysicsX develops AI-native engineering software that helps industrial organizations accelerate s...

London, United Kingdom51–200Artificial Intelligence, Automotive
Series CTotal funding$484.0MJun 2026
47
Starcloud

Starcloud builds scalable data center infrastructure in space, using solar energy and radiative c...

Redmond, United States1–10Cloud, Space Tech
Extension RoundTotal funding$477.9MAug 2026
48
Peregrine

Peregrine creates software that helps organizations integrate and analyze large and complex data ...

San Francisco, United States201–500Artificial Intelligence, Cybersecurity
Series DTotal funding$470.0MJun 2026
49
Loft Orbital

Loft integrates, launches, and operates spacecraft for governments, companies, and research insti...

San Francisco, United States51–200Aerospace, Space Tech
Series CTotal funding$463.9MJan 2025
50
Long Wall

Defense tech manufacturer of modular missile defense and hypersonic test systems for U.S. defense...

Los Angeles, United States1–10Defense Tech
Extension RoundTotal funding$419.2MOct 2021