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The global launch market reached $14.1 billion in 2024 — up 34% since 2021.
| Attribute | |||
|---|---|---|---|
| Company | Isar Aerospace | United Launch Alliance | ULA |
| Country | 🇩🇪 Germany | 🇺🇸 USA | 🇺🇸 USA |
| Status | In Development | Retired | Active |
| Vehicle class | Small | Heavy | Medium |
| Propellant | LOX / kerosene (~80% manufactured in-house) | LH2 / LOX | RP-1 / LOX (RD-180); LH₂ / LOX (Centaur III) |
| Reusable | No | No | No |
| Stages | 2 | 2 | 2 |
| First flight | 2025 | 2004 – 2024 | 2002 |
| Payload to LEO | 1,000 kgas of [1] | 28,370 kgas of [1] ↑ Best | 18,850 kgas of [1]401 configuration. Maximum 401/551 stretch to 20,520 kg. 551 max 29,420 kg (5-solid boosters). |
| Payload to GTO | — | — | 8,900 kgas of [1]551 configuration (maximum performance) ↑ Best |
| Height | — | 70.7 mas of [1] ↑ Best | 58.3 mas of [1]401 configuration |
| Liftoff mass | — | 733 tas of [1] ↑ Best | 334 tas of [1]401 configuration without strap-ons |
| Success rate | 0/1 (first flight failed)as of [1]First flight from Andøya Spaceport (2025-03-30): liftoff succeeded but the rocket was terminated ~30 seconds in after a vent valve opened unexpectedly, causing loss of attitude control. Second flight ('Onward and Upward') repeatedly delayed through 2026 (weather, a safety-zone fishing vessel, a composite pressure vessel leak, then off-nominal fluid-system behavior as of 2026-06-15) — not yet flown as of this research. | 93.75% (15/16 full success, 1 partial failure)as of [1] | 99.1%as of [2]108 full successes + 1 partial failure (NROL-30, Jun 2007 — payload still reached usable orbit) across 109 launches ↑ Best |
| Total flights | 1as of [1] | 16as of [1] | 109as of [2]No longer sold but still flying its backlog: ~8 launches remained as of Apr 2026 (6 Starliner + 2 Amazon Leo); most recent flight Amazon Leo LA-07 (May 29, 2026), ~7 remain ↑ Best |
| Cost / kg LEO | — | — | — |
| Summary | Germany's first orbital-class launcher attempt; its first flight in March 2025 was Western Europe's first orbital launch attempt from the European mainland. A qualification second flight carrying CubeSats and ESA experiments has slipped repeatedly through 2026. | ULA's triple-common-booster-core heavy-lift launcher, retired 2024-04-09 after its final flight; superseded by Vulcan Centaur, which ULA states offers similar heavy-lift capability at lower cost. | ULA's workhorse since 2002 and the longest-serving active US rocket. Launched Mars Science Laboratory (Curiosity), OSIRIS-REx, Solar Orbiter, Lucy, New Horizons, and the Boeing Starliner. Production ended in 2024 and ULA no longer sells the vehicle, but it continues flying a sold-out backlog of Starliner and Amazon Leo missions into the late 2020s. |
48 launch vehicles across 10 countries — active, retired, and in development — with primary-source citations from manufacturer user guides and agency press kits. Pure URL state: bookmark or share the link and the comparison reproduces exactly.