Best Aerospace, Maritime and Defense Tech Companies in United States

#1

SpaceX Unicorn Series J

location_onHawthorne, California

Provider of advanced aerospace and space transportation services. It delivers advanced launch services using reusable rocket systems designed to transport crew and cargo for missions to orbit, the Moon, Mars, and deep space exploration. It also develops and operates large-scale satellite networks that provide high-speed, low-latency internet connectivity across the globe, including remote and underserved regions. It

#2

Anduril Unicorn Series H

location_onCosta Mesa, California

Provider of AI-driven defense and autonomous systems across air, land, sea, and space domains. It develops integrated platforms that enhance situational awareness, real-time decision-making, and operational effectiveness for defense and security applications. It delivers a range of autonomous systems and software-defined defense infrastructure, including surveillance systems, unmanned platforms, and command-and-contr

#3

Astranis Unicorn Series E

location_onSan Francisco, California

Developer of satellite-based communication services. It provides users with a platform that develops small-sized, low-cost telecommunication satellites in the geostationary orbit and in a fixed location. It can provide internet connectivity as soon as the satellite is launched to rural areas and indigenous communities.

#4

Sierra Space Unicorn Series C

location_onLouisville, Colorado

Developer of space systems, components, spacecraft, propulsion, and related technologies. The company provides solutions for commercial spaceflight, national security, and microgravity research. Offerings include spaceplanes, space station habitats, electrical power systems, and environmental control systems. The company also provides hardware, testing, and analysis services.

#5

Shield AI Unicorn Series G

location_onSan Diego, California

Developer of AI-powered platforms and software for defense applications. The company provides solutions for mission autonomy, surveillance, and object detection. Its offerings include autonomous pilot software, command and control toolkits, and autonomy development platforms. It also manufactures unmanned aircraft for intelligence, surveillance, and reconnaissance missions.

#6

Skydio Unicorn Series F

location_onSan Mateo, California

Manufacturer of autonomous drones and related software, services, and accessories. It provides drone platforms, docking stations, attachments, and software for autonomous flight, data capture, and integration. These products serve sectors including public safety, utilities, national security, inspection, transportation, construction, and oil and gas. Services include regulatory and success support, along with develop

#7

Archer Unicorn Public

location_onSan Jose, California

Developer of electric vertical takeoff and landing aircraft for commercial use. The company focuses on aircraft certification, safety, and defense applications. It provides updates through its newsroom and offers various resources. These resources include information for investors, media, and potential employees.

#8

HawkEye 360 Public

location_onHerndon, Virginia

Developer of satellite-based geographic monitoring and communication solutions. It provides users with a constellation of small satellites in low Earth orbit, to generate reports on wireless signals that can be used to track and monitor global transportation networks, assist with emergencies, and provide other data analytics services to various industries. It also provides maritime situational awareness, collecting i

#9

Spire Acquired

location_onSan Francisco, California

Provider of space-based data, analytics, and space services using a large nanosatellite constellation in low orbit. The company collects and processes radio-frequency and atmospheric signals to deliver actionable insights for weather and climate, aviation, maritime, government, and security use cases, including RF geolocation, flight tracking, ship tracking, and greenhouse gas monitoring. It also offers space-as-a-se

#10

Hermeus Unicorn Series C

location_onAtlanta, Georgia

Manufacturer of supersonic aircraft. It is involved in designing supersonic aircraft for providing broadband human connectivity to the global community. Its aircraft technology is designed to increase speed and reduce cost.

#11

Vast Series A

location_onLong Beach, California

Developer of commercial space stations designed for long-term space habitation. The company is focused on building space stations and advancing technologies for living and working in space. It develops hardware and systems for space station modules, including primary structures, solar arrays, and environmental control systems. The company aims to provide platforms for government astronaut missions, private astronaut

#12

Axiom Space Unicorn Series D

location_onHouston, Texas

Developer of commercial space stations for habitation. Its space stations can host microgravity experiments and space-environment materials testing. It is also developing a thruster that can be installed on a mobile propulsion test stand. It also caters to government astronauts, tourists, private companies, and individuals for research, manufacturing, space exploration system testing and tourism.