Rocket Propulsion Systems (RPS)

Updated 10 Jul 2026
Manufacturer United States Listed
7 Products
1 Services
7 Years Active
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About Rocket Propulsion Systems (RPS)

Rocket Propulsion Systems (RPS) was founded in 2019 by CEO Dr. Max Ismailov (PhD Aerospace Engineering, Purdue University), who spent 2010-2019 at Blue Origin, SpaceX, Stratolaunch, and Firefly Aerospace before starting the company in Kent, Washington. RPS designs, builds, tests, and commercializes reusable propulsion systems and orbital transfer vehicles (OTVs) for space and hypersonic applications.

The company's core product is Centurion, a reusable LOX/methane staged-combustion engine priced around $150K per unit and rated for up to 50 reuses. Centurion is designed as a modular building block that can be clustered or stacked across a small satellite launch vehicle, a suborbital test vehicle, a hypersonic booster, and orbital transfer vehicles, letting RPS address multiple markets from a single engine architecture.

RPS has been funded through NASA, NSF, US Air Force, and Space Force SBIR awards, most recently a $3M Space Force contract for orbital transfer vehicle development (awarded July 2025). The company is also developing a longer-term In-Space Assembly and Manufacturing (ISAM) platform concept and is an alumnus of the NYU Stern Endless Frontier Labs and NSIN Vector programs.

Products

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The Centurion engines are reliable and reusable rocket engines designed for small launch vehicles, offered at a competitive unit price of $150K each. They are developed under the supervision and funding of the U.S. National Science Foundation / Space division.

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The Centurion is a fuel-rich staged combustion rocket engine designed for small satellite launch vehicles and in-space stages, utilizing liquid oxygen (LOX) and liquid methane propellants.

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Rocket Propulsion Systems (RPS) is developing a complete In-Space Assembly and Manufacturing (ISAM) platform service for businesses that want to manufacture new, 21st century products in space.

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Lunar Transfers is a service utilizing an Orbital Transfer Vehicle (OTV) to perform Translunar Orbit Injections from a very low Earth orbit into a lunar orbit via a Ballistic Lunar Transfer (BLT). This method allows for larger payloads compared to direct transfers.

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Liquid-fueled Centurion-powered hypersonic test booster benchmarked against the LRHW.

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The RPS Orbital Transfer Vehicle (OTV) is a cryogenic propulsion system designed for rapid and cost-effective orbit transfers from Low Earth Orbit (LEO) to Medium Earth Orbit (MEO) or Geosynchronous Earth Orbit (GEO). It offers high total impulse for various space maneuvers.

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The RPS Suborbital Launch Vehicle is a single-stage, reusable, liquid-fueled, vertical takeoff rocket designed for suborbital flights for commercial, government, and defense applications.

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Additional Services

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Manufacturing
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In-Space Assembly and Manufacturing (ISAM) platform service

RPS is developing a comprehensive In-Space Assembly and Manufacturing (ISAM) platform service designed for businesses of all sizes. This service will enable customers to manufacture new, 21st-century products directly in space. The ISAM service will integrate RPS-made Earth-to-Orbit Launch Vehicles…

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