Rocket Engine Manufacturers
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Liquid rocket engine and solid rocket motor makers, and in-space propulsion companies.
More on webcentive: Rockets | Rocket Companies
Each site has quick lookups: who owns it (whois), its history (Wayback Machine), a safety check, and one-tap questions to AI helpers. Grok asks you to tap Send first.
Links last checked Oct 25, 2026.
| Site | X | whois | history | safety | sitesearch | Google AI Mode | Grok | Bing AI | |
|---|---|---|---|---|---|---|---|---|---|
| U.S. engine makers | |||||||||
| agilespaceindustries.com - Agile Space Industries (thrusters and engines), Durango, Colorado | X: @agile_space | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| blueorigin.com/engines - Blue Origin engines (BE-4 for New Glenn and Vulcan, BE-3). Site blocks automated checks. | X: @blueorigin | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| firehawkdefense.com - Firehawk Aerospace (hybrid rocket engines, 3D-printed fuel), Texas | X: @FirehawkAero | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| l3harris.com - L3Harris (Aerojet Rocketdyne: RS-25, RL10, AR1), Melbourne, Florida | X: @L3HarrisTech | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| moog.com - Moog (space propulsion and thrusters), East Aurora, New York | X: @Moog_Inc | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| northropgrumman.com/what-we-do/space - Northrop Grumman space systems, including the solid rocket motors and boosters it builds for launch vehicles and missiles. | X: @northropgrumman | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| spacex.com/vehicles - SpaceX Starship page. SpaceX builds its own Raptor and Merlin engines in-house. | X: @SpaceX | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| ursamajor.com - Ursa Major (Hadley, Draper, solid rocket motors), Berthoud, Colorado | X: @ursamajortech | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| vastspace.com - Vast (acquired Launcher and its E-2 engine work in 2023), Long Beach, California | X: @vast | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| x-bow.com - X-Bow Systems (solid rocket motors), Austin, Texas. Site blocks automated checks. | X: @XBowSystems | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| European engine makers | |||||||||
| ariane.group - ArianeGroup (Vulcain 2.1, Vinci, Prometheus), Airbus and Safran joint venture | X: @ArianeGroup | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| avio.com/propulsion - Avio (P120C solid motors, M10 engine), Italy | X: @Avio_Group | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| nammo.com - Nammo (space propulsion and motors), Norway; owned by the Norwegian state and Patria (Finland) | X: none found | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| pangeapropulsion.com - Pangea Aerospace (aerospike engines), Barcelona, Spain | X: none found | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| safran-group.com - Safran (space propulsion, ArianeGroup co-owner), France. Site blocks automated checks. | X: @SAFRAN | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| Asian engine makers | |||||||||
| ihi.co.jp - IHI (rocket engines and solid motors, IHI Aerospace), Japan | X: none found | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| mhi.com - Mitsubishi Heavy Industries (LE-9 engine, H3 rocket), Japan | X: @MHI_Group | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| In-space propulsion | |||||||||
| benchmarkspacesystems.com - Benchmark Space Systems (in-space propulsion), Vermont | X: @BenchmarkSpace | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| busek.com - Busek (electric propulsion), Natick, Massachusetts | X: @BusekPropulsion | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| dawnaerospace.com - Dawn Aerospace (green thrusters, Aurora spaceplane), New Zealand and Netherlands | X: @DawnAerospace | whois | history | safety | search | AI Mode | Grok | Bing AI | |
| exotrail.com - Exotrail (electric propulsion and space tugs), France | X: @exotrail | whois | history | safety | search | AI Mode | Grok | Bing AI | |
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Number of links: 21
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