Rocket Engine Manufacturers

Based in Salt Lake City, UT, AeroTech/Quest Division, RCS Rocket Motor Components, Inc. manufactures solid rocket motors and reloadable motor systems (RMS). They provide high-power propulsion components for advanced rocketry enthusiasts, university teams, and educational initiatives, serving major regional and national launch events.

Alpha Metalcraft (AMG), based in Danbury, CT, provides precision metal forming for aerospace and defense. They produce space rocket engine components like thrust chamber fuel passage jackets, liners, domes, and hemispheres. Capabilities include electroforming, deep drawing, and metal spinning, handling prototype to high-volume production.

Applied Aerospace specializes in precision aerospace structures, offering advanced design, analysis, and comprehensive fabrication services for space, air, and defense. They provide structural analysis, custom tooling, precision machining, and composite fabrication in-house, supporting complex manufacturing needs across various aerospace applications.

Based in Pittsburgh, PA, Astrobotic develops and builds lunar landers, rovers, and critical space infrastructure. The company designs and integrates propulsion systems for its landers, enabling safe descent and operations on the lunar surface. Astrobotic facilitates various lunar missions, advancing humanity's exploration goals.

Busek Co. Inc. develops high-performance electric propulsion systems for spaceflight. The company specializes in manufacturing Hall, electrospray, RF ion, and monopropellant thrusters. With extensive flight heritage, Busek provides efficient and reliable propulsion solutions, supporting missions like NASA’s Artemis. They focus on advanced systems for next-generation spacecraft.

Delta Centrifugal, based in Temple, TX, is a world-class centrifugal casting manufacturer and machine shop. They specialize in producing quality-critical, centrifugally cast rocket engine nozzles for the aerospace and defense industries. With ITAR, ISO 9001, and AS9100 certifications, they offer precision manufacturing using over 200 alloys.

Based in Victorville, CA, Exquadrum specializes in pyrotechnic and energetic device production, featuring solid rocket motor experience from formulation through characterization. They offer quality precision machining for prototypes and production, utilizing specialized automation systems. The company emphasizes verification and validation in its technology development for defense applications.

General Atomics (GA) specializes in advanced defense and energy technologies. Its GA-EMS division is a pioneer in Space Nuclear Thermal Propulsion (NTP), developing nuclear power reactors for space launch. They also build precision-guided missiles for U.S. defense customers.

Based in Lafayette, IN, IN Space LLC researches, develops, and designs advanced propulsion technologies for space exploration, commercialization, and national defense. They provide custom hardware and detailed analysis solutions, enhancing performance and reliability for rocket and air-breathing aerospace applications through R&D and engineering services.

Based in Mojave, CA, Interorbital Systems is an aerospace company focused on developing small-lift and medium-lift two-stage orbital launch vehicles, such as the NEPTUNE_100. The company engages in the design and manufacturing processes required for rocket and space launch systems.

Kratos Defense provides advanced propulsion and power solutions for next-generation defense and aerospace systems. The company specializes in manufacturing cost-effective turbojets and turbofans, supporting critical defense and space applications. Based in San Diego, CA, Kratos offers integrated engineering and production expertise.

Based in Santa Fe Springs, CA, LeFiell Manufacturing Company fabricates critical precision tubular products and complex assemblies for aerospace, defense, and propulsion industries. They are a qualified supplier of combustion chamber coolant tubes, utilizing advanced metalforming, machining, and special processes for demanding applications.

Lockheed Martin develops advanced nuclear propulsion technologies for future space exploration and deep space missions. The company engineers and manufactures critical aerospace components, including the Orion spacecraft, demonstrating extensive capabilities in rocket engine development and manufacturing for defense and space applications.

Based in Melbourne, FL, Micro Aerospace Solutions specializes in propulsion design, development, and testing. They work with various systems and propellants, including monoprops, bi-props, and solid propellants, providing comprehensive solutions for aerospace propulsion needs.

Northrop Grumman is a major global aerospace and defense technology company. It specializes in developing and manufacturing reliable, flight-proven solid rocket motors. These essential propulsion systems support both the company's own advanced vehicles and other defense providers for critical mission solutions.

Based in Jupiter, FL, P3 Technologies, LLC specializes in the development of liquid propellant rocket engines. They offer expertise in various engine cycles, propellants, and high-performing turbomachinery technologies. The company provides comprehensive design, analysis, and testing services for advanced propulsion systems.

Based in Newington, CT, PCX Aerosystems manufactures flight-critical components and systems for demanding aerospace applications. They provide a broad portfolio of space industry products, including those for satellites, launch vehicles, and missile defense. The company's advanced machining capabilities support various space exploration initiatives.

Based in Andover, MA, Physical Sciences Inc. (PSI) specializes in developing liquid rocket engines, solid rocket motors, and airbreathing engines. They provide integrated propulsion systems, energetic fuels, and testing capabilities for critical missile and rocket applications, solving customer needs through innovation.

Reinhold Industries manufactures composite and metallic structures for aerospace, defense, and industrial markets. Their Space & Defense Product Line specializes in composite and ablative components, including rocket nozzle assemblies, for space and military requirements. They supply advanced composite and hybrid metal-composite assemblies for rocket, rotorcraft, and aircraft platforms.

Based in Cape Canaveral, FL, RocketStar specializes in advanced space propulsion systems. The company develops fusion-enhanced thrusters, including its FireStar™ Fusion Drive, which leverages aneutronic nuclear fusion. This technology significantly boosts performance for water-fueled pulsed plasma thrusters, aiming to revolutionize future space travel.

Sierra Nevada Corporation is a global leader in aerospace, security, and defense, specializing in solving complex challenges for government, global partners, and commercial customers. The company acts as a lead systems integrator, developing and modernizing aerial military intelligence and investing in advanced aerospace technologies.

Ultramet is a California corporation specializing in material science, engineering, and manufacturing of refractory metals, platinum group metals, and ceramics. They provide propulsion system components, combustion chambers, valve components, and ceramic matrix composites for aerospace, medical, and other industries.

VACCO Industries specializes in micro propulsion systems and electronic pressure regulators, providing essential propulsion hardware for spacecraft. They have supplied systems for MarCO CubeSats and hardware for the InSight spacecraft, also supporting NASA missions like Artemis I. The company emphasizes engineering, manufacturing, and quality.

Venus Aerospace Corp. develops and manufactures advanced Rotating Detonation Rocket Engines (RDREs), a breakthrough in propulsion technology. These RDREs provide historic efficiency, reusability, and throttleability, significantly reducing launch costs. Scalable for diverse thrust requirements, their engines serve space, defense, and high-speed commercial flight applications.

X-Bow Systems revolutionizes solid rocket motor technology using advanced 21st-century manufacturing techniques, including patented additive manufacturing of solid propellants. The company delivers customizable, low-cost solid rocket motors and comprehensive flight test services for national security, defense, and space applications.

ABL Space Systems, based in El Segundo, CA, specializes in launch vehicle and launch systems technology development. The company is a direct provider of rocket manufacturing services, including the design and production of its own rocket engines for commercial and government space missions.

Anduril Industries specializes in the design, development, and high-volume manufacturing of conventional and next-generation rocket motors and propulsion systems. Based in Costa Mesa, CA, the company provides critical components for defense and space launch, leveraging advanced technology to support national security initiatives.

Based in Troy, NY, Benchmark Space Systems develops and manufactures advanced propulsion systems and thrusters for satellites. The company provides safe, reliable, and cost-effective in-space propulsion solutions, including innovative green propulsion technologies. They offer flexible, integrated systems for diverse satellite platforms and mission profiles.

Based in Torrance, CA, Castelion Corporation designs, tests, and manufactures next-generation military systems. The company rapidly produces advanced defense solutions at massive scale. Their capabilities include the development and production of critical components, often encompassing propulsion systems and other complex hardware for military rockets and missiles.

Dark Fission develops Nuclear Thermal Propulsion (NTP) systems for deep space missions. Their advanced rocket engines provide higher speed, greater payload capacity, and true reusability, exceeding current chemical and electric propulsion limits. Dark Fission aims to enable sustainable space infrastructure and faster, commercial-ready transport solutions.

Evolution Space and Energetics Corp manufactures solid rocket motors (SRMs) and advanced propulsion systems for defense and space. They provide tailored solutions, offering tactical and extended burn configurations. Their systems undergo hypersonic testing at Mach 5 and above, with production capabilities at NASA Stennis Space Center.

Helicity Space develops scalable fusion propulsion engines, known as the Helicity Drive, for advanced space vehicles. These engines are designed to enable faster, safer, and more fuel-efficient deep space travel. The company's technology supports humanity's expansion into the solar system for future science, exploration, and commercial ventures.

Intuitive Machines is a diversified space company specializing in space exploration, providing products and services for sustained robotic and human missions to the Moon, Mars, and beyond. They offer lunar access, orbital services, and space infrastructure, including the scalable VR900 rocket engine, which uses liquid oxygen and methane.

Launcher, a Vast company, specializes in developing advanced liquid rocket engines for the launch vehicle industry. Its primary offering is the E-2, a LOX/Kerosene oxidizer-rich staged combustion engine. This engine is designed for small launch vehicles and is available for sale to other companies.

Based in Kent, WA, Rocket Propulsion Systems LLC designs and manufactures scalable rocket engines and Orbital Transfer Vehicles (OTVs). They offer cryogenic engines with 3,307 lbf thrust and 374 sec vacuum Isp, enabling dynamic LEO to MEO/GEO transfers and lunar missions. These powerful rocket engines are available for direct purchase.

Based in San Luis Obispo, CA, Stellar Exploration, Inc. develops affordable hardware for miniaturized aerospace systems. They specialize in nanosatellite propulsion systems, including hypergolic and solid rocket propulsion, power, and RF tracking subsystems. The company has flight heritage, serving military, civil, and commercial aerospace customers.

Based in Kent, WA, Stoke Space develops and manufactures 100% reusable Nova rockets for affordable access to orbit. They design and build advanced full-flow staged combustion rocket engines, such as Zenith and Andromeda, in their vertically integrated facilities. Stoke Space produces its own rocket engines, structures, and avionics.

Based in Cocoa, FL, Vaya Space develops and manufactures orbital launch vehicles, in-space propulsion systems, and advanced missile engines. They utilize hybrid rocket engine technology with non-toxic, non-explosive propellants and 3D printed recycled thermoplastic fuel grains. These engines offer restart and throttle capabilities for various space and defense applications.

Based in Oxnard, CA, AST Forging Technology specializes in advanced metal forming processes like flow forming, metal spinning, and rotary forging. They produce critical high-performance components, including hybrid rocket motor cases, for aerospace and space propulsion systems.

Atec, Inc. provides world-class design, manufacturing, test cells, and field services for custom aeroengine and rocket engine applications. The company manufactures critical components for rocket propulsion and space launch vehicle hardware, including parts for RL10 and RS-25 programs, with build-to-print capabilities.

Based in Falls Church, VA, BAE Systems is a leading global defense, aerospace, and security company. They provide advanced systems, including propulsion technologies and components for missiles, guided weapons, and space applications. The company leverages its extensive manufacturing capabilities for complex defense and aerospace solutions.

Based in Arvada, CO, Barber-Nichols specializes in designing and building mission-critical turbomachinery for aerospace, cryogenics, and defense applications. They are known for their expertise in high-speed rotating machinery, including rocket engine turbopumps. The company provides comprehensive engineering, manufacturing, assembly, and testing services.

Concepts NREC offers engineering services and manufacturing for critical components in space propulsion. They specialize in the design and production of rocket turbopumps, turbopump components, and complete rocket systems. The company serves the aerospace and aviation industries with integrated CAE & CAM software and advanced manufacturing capabilities.

Based in Urbana, IL, CU Aerospace designs, fabricates, and tests micropropulsion systems for CubeSats and small spacecraft. They offer various thrusters, including cold gas, resistojet, and electrospray systems, providing capabilities for high thrust and high specific impulse applications.

Based in Goleta, CA, LaunchPoint Electric Propulsion Solutions designs and manufactures lightweight, high-specific-power motors, starter/generators, and alternators. Utilizing patented ironless axial-flux technology, the company supplies critical propulsion and power generation components for aerospace applications, including combat aircraft and uncrewed aircraft systems.

Masten Space Systems specializes in developing and manufacturing rocket engines for reusable vertical takeoff and landing vehicles. Their offerings include R&D engines, such as a 1,000 lbf steel chamber engine, and a 6,000 lbf turbopump-fed liquid oxygen/liquid methane engine for advanced space technology testing.

Based in East Aurora, NY, Moog Inc. specializes in advanced motion control hardware and software solutions for diverse applications, including space. The company manufactures monopropellant thrusters for spacecraft and flight vehicle attitude control, pioneering cutting-edge technology to solve complex motion control problems for its customers.

Based in Louisville, CO, Sierra Space specializes in developing and manufacturing advanced space vehicles and components. They provide critical testing services for the rapid development of rocket engine components and integrated systems, supporting the advancement of space transportation and infrastructure.

Based in Rockville, MD, X-energy, LLC. specializes in advanced nuclear reactor technology, including the Xe-100, and TRISO-X fuel. The company provides advanced nuclear energy solutions for Earth and offers Nuclear & Space Industrial Solutions, including critical components and fuel for nuclear thermal propulsion rocket engines.

Ad Astra Rocket Company specializes in the development of advanced plasma rocket propulsion technology. The company focuses on innovative spaceflight solutions and next-generation thrusters for various space exploration and commercial applications.

Agile Space Industries, Inc. designs, 3D prints, and hotfires in-space chemical propulsion systems, including rocket engines and thrusters. The company specializes in Hydrazine and Hydrazine-based constituents, focusing on rapid development and qualification of high-performance solutions. They are AS9100D certified.

Astra provides resilient launch systems for space access, specializing in flight-proven electric propulsion technology. The company focuses on rapid innovation to usher in a new era of reliable and efficient space access solutions, serving the evolving needs of the space industry.

Based in Sacramento, CA, Beehive Industries is an American jet engine manufacturer specializing in advanced propulsion systems. Leveraging multi-modal 3D printing and additive manufacturing, they rapidly develop and produce complex engine components and full-scale jet engines for defense and aerospace applications.

Blue Origin is a Kent, Washington-based aerospace manufacturer developing rocket engines for commercial, civil, and national security spaceflight. They engineer and produce a family of powerful engines designed to propel the next generation of rockets for diverse human and robotic missions into space.

Based in Brunswick, ME, bluShift Aerospace is a propulsion company specializing in modular, scalable hybrid propulsion systems. They develop proprietary, non-toxic biofuel-powered MAREVL reusable hybrid engines for suborbital launches, booster systems, and small launch vehicles, offering cost-effective solutions for spaceflight demands.

Based in Cedar Park, TX, Firefly Aerospace manufactures launch vehicles, lunar landers, and orbital spacecraft. They produce the Alpha rocket, the larger Eclipse rocket, and the Blue Ghost lunar lander. Firefly Aerospace provides payload delivery and national security capabilities for government and commercial clients.

Based in Los Alamitos, CA, Firehawk Aerospace redefines defense manufacturing by producing scalable solid rocket motors. The company leverages additive propulsion systems to secure the U.S. supply chain, offering advanced solutions for rocket engine manufacturing. They focus on modernizing and strengthening national defense capabilities.

Based in Los Angeles, CA, Freeform provides advanced metal additive manufacturing services. Founded by former SpaceX engineers, they leverage real-time predictive AI for high-quality, digitally-verified parts at speed. Freeform specializes in producing complex components for rocket engine manufacturers, aerospace, defense, aviation, and advanced transportation.

Based in Hauppauge, NY, iRocket manufactures 100% reusable rocket engines and launch vehicles for rapid, affordable space access and global point-to-point delivery. They utilize proprietary technology with eco-friendly LOX/Methane propellants, developing solutions for satellite transport, defense, security, and space logistics.

Based in Huntington Beach, CA, Karman Space & Defense offers concept-to-production solutions for complex space and defense missions. They specialize in advanced propulsion systems, manufacturing rocket motor assemblies, electromechanical systems, and powerful launchers. Additionally, they provide payload protection, deployment, and aerodynamic interstage systems.

Based in Melbourne, FL, L3Harris Technologies, Inc. specializes in scaling Solid Rocket Motor (SRM) capacity for defense applications. The company manufactures solid rocket motors to power next-generation missile defense systems. They provide multi-domain, layered solutions designed to identify, track, and defeat global threats.

New Frontier Aerospace is an equity-funded startup specializing in advanced rocket engine manufacturing. They produce the Mjölnir Engine, the only full-flow staged combustion engine available for purchase, known for its high efficiency, reusability, and net carbon-negative LNG fuel capability. Ideal for hypersonic aircraft, upper stages, and various spacecraft.

Relativity Space is an aerospace company that designs and builds reusable rockets, including Terran R, to enhance access to space. They focus on making launches more reliable and routine for scientific discovery, exploration, and business opportunities, utilizing advanced manufacturing techniques and rapid iteration in its engineering processes.

Based in Cape Canaveral, FL, Spacecrew specializes in the design, manufacturing, and launch of aerospace vehicles. The company focuses on advancing space access and hypersonic vehicle capabilities, indicating direct involvement in producing complex components such as rocket engines for various space and high-speed applications.

Based in Woburn, MA, Triton Space Technologies, LLC manufactures spaceflight propulsion components for the commercial aerospace industry. They provide off-the-shelf and custom high-reliability hardware, including various solenoid, latch, cryogenic, and pyrotechnic initiator valves. These components are supplied for spacecraft, launch vehicles, and in-space systems with short lead times.

Based in Berthoud, CO, Ursa Major Technologies Inc. manufactures American-built propulsion and defense systems. They deliver mission-ready, flight-proven rocket engines and solid rocket motors for missile defense, hypersonics, in-space mobility, and launch applications. Utilizing additive manufacturing, their offerings include scalable liquid hypersonic engines and satellite propulsion systems.