What Rubicon Space Systems does

Rubicon Space Systems, founded in 2022 in Huntsville, Alabama as a division of Plasma Processes LLC, designs and manufactures spacecraft propulsion hardware based on ASCENT (AF-M315E), a low-toxicity hydroxylammonium nitrate monopropellant developed by the Air Force Research Laboratory. Its product line spans four core offerings: the Sprite Mobility Unit (an integrated 0.1N-class propulsion module for CubeSats and SmallSats, with up to eight units synchronizable via RS-485), the Velox 5N thruster for orbit adjustment and rapid repositioning (Isp approaching 250 seconds), the Audax 1N thruster for precision attitude control and stationkeeping (Isp exceeding 240 seconds), and a 5N Low Throughput variant qualified for 5 kg throughput with 264-second Isp. Production is vertically integrated, with in-house fabrication of chambers, injectors, catalyst assemblies, titanium propellant tanks with integrated propellant management devices, and refractory metal components via Plasma Processes' patented El-Form process and proprietary ruthenium-iridium metal-foam catalysts.

The company generates revenue primarily through hardware sales of flight-qualified thrusters and integrated propulsion modules to spacecraft manufacturers, government agencies (NASA Marshall Space Flight Center, NASA JPL, AFRL), defense customers, and commercial space operators. A second revenue stream comprises fueling services using ASCENT propellant, including a forthcoming 'fueling as a service' offering developed under a January 2026 AFWERX Phase II SBIR award with Outpost Technologies. A third stream is non-dilutive R&D funding through NASA SBIR/STTR contracts and AFWERX direct awards. Go-to-market is enterprise field sales with direct engagement through the company website and dedicated email ([email protected]), supplemented by SatSearch marketplace listings and earned media coverage in outlets such as Spacenews and NASA Spinoff. Customer concentration is heavily weighted toward U.S. government and government-funded programs, with Flight Works Inc. and an unnamed aerospace prime representing the named commercial counterparties.

Name

Rubicon Space Systems

Legal name

Rubicon Space Systems, a division of Plasma Processes

Website

https://rubicon.space

Company type

Private

Founded year

2022

Operating status

Operating

Headcount range

1–10 employees

Short description

Rubicon Space Systems, a Huntsville, Alabama division of Plasma Processes LLC, designs and manufactures ASCENT-monopropellant spacecraft propulsion hardware, including the Sprite mobility module and Velox 5N and Audax 1N thrusters, serving NASA, AFRL, defense, and commercial spacecraft operators.

Ownership category

akta.pro rank

Product category

Spacecraft Propulsion Systems

NAICS

Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing (336415)

SIC

Guided Missiles & Space Vehicles & Parts (3760)

akta.pro primary industry

Spacecraft Propulsion (In-Space) & Thrusters (IMABACAE)

Keywords

• Spacecraft propulsion systems
• Green monopropellant thrusters
• ASCENT propulsion modules
• CubeSat mobility solutions
• Smallsat attitude control

Headquarters

HQ city

Huntsville

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Technology or R&D, Infrastructure, Operations, Marketing or Sales

Revenue model

1. Spacecraft Propulsion Hardware Sales: Sale of thrusters (0.1N, 1N, 5N) and integrated propulsion systems (Sprite Mobility Unit) to spacecraft manufacturers, government agencies, and commercial operators. Revenue from flight hardware delivery and qualification units.
2. Fueling Services: Spacecraft fueling operations using ASCENT propellant, including propellant loading procedures, ground support equipment, cleanroom operations, and mission-specific fueling support. Future 'fueling as a service' model under development.
3. Government R&D Contracts: SBIR/STTR contracts with NASA and AFWERX for propulsion technology development, qualification, and demonstration programs.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Rubicon Space Systems designs, manufactures, and sells green-monopropellant (ASCENT) spacecraft propulsion systems, including standalone thrusters (0.1N, 1N, 5N) and integrated propulsion modules such as the Sprite Mobility Unit for CubeSat and SmallSat platforms. The company also provides in-house manufacturing of thruster components, ground-based test and qualification services, and ASCENT propellant fueling services for spacecraft operators.

Product overview

Rubicon Space Systems offers a portfolio of spacecraft propulsion products powered by ASCENT monopropellant technology, ranging from compact thrusters to integrated mobility systems. The product line includes: the Sprite Mobility Unit (self-contained 0.1N propulsion module for CubeSats/SmallSats); the Velox 5N Thruster (high-performance thruster for orbit adjustment and maneuvering); and the Audax 1N Thruster (precision attitude control thruster). These products share the common ASCENT propellant technology and are designed to work collectively - up to eight Sprite modules can be synchronized via RS-485 for scalable propulsion capability. The company also offers fueling services using ASCENT propellant.

Differentiator

Problem solved

Functional benefit

Products and services

• Sprite Mobility Unit Self-contained propulsion module providing plug-and-play maneuverability for CubeSats and SmallSats using a 0.1N ASCENT monopropellant thruster, propellant storage, electronics, valves, heaters, and control hardware within a compact 10cm x 10cm x 15cm envelope. Total impulse exceeds 1000 Ns with wet mass under 2kg, and up to 8 modules can be synchronized via RS-422/RS-485 communication for scalable propulsion capability.
• Velox 5N Thruster High-performance 5-Newton monopropellant thruster producing 0.5-5.0N thrust with specific impulse approaching 250 seconds, designed for orbit adjustment, rapid repositioning, stationkeeping, and larger ΔV maneuvers for spacecraft operators.
• Audax 1N Thruster 1-Newton monopropellant thruster producing 0.2-1.1N thrust with specific impulse exceeding 240 seconds, supporting precision attitude control, momentum management, stationkeeping, and small ΔV maneuvers. Demonstrated continuous burns exceeding 300 seconds.
• 5N Low Throughput (LT) Thruster Redesigned 5N thruster targeting smallsat mission applications with limited propellant supply, qualified for 5kg propellant throughput with demonstrated Isp of 264 seconds. Supports high throughput and long operational life for sustained missions.
• ASCENT Propellant Fueling Services Spacecraft fueling operations using ASCENT propellant, including propellant loading procedures, ground support equipment, cleanroom operations, and mission-specific fueling support. Future 'fueling as a service' model under development for mobile, turnkey fueling services supporting responsive space missions.

Quantifiable outcome

• 50% greater density specific impulse than hydrazine
• +5 more outcomes

Named customers6 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Nine partnerships are on record, tiered core, major and minor.

• Outpost TechnologiescoreStrategic or Co-development Partner · 1 January 2026Joint AFWERX Phase II SBIR award to advance fast-response fueling system for ASCENT propellant. Total program funding approximately $2.1 million. Partnership combines Rubicon's propulsion expertise with Outpost's manufacturing and operational capabilities to create mobile, turnkey fueling services for responsive space missions.
• Air Force Research Laboratory (AFRL)coreStrategic or Co-development Partner · 1 August 2023AFRL developed ASCENT propellant and selected Rubicon to build next-generation 1N ASCENT thrusters for future space mission demonstrations. Rubicon tested at AFRL's Chemical in-Space Thruster Test and Research Site. AFRL is key customer for flight-qualified propulsion systems supporting U.S. Space Force resiliency and space domain awareness.
• MIT Space Propulsion LaboratorycoreTechnology or Integration · 1 August 2023MIT developed Scalable Ion Electrospray Propulsion System for NASA's dual-mode propulsion demonstration. Sprite propulsion module incorporates dedicated propellant interface supplying ASCENT to MIT's electrospray system while supporting chemical propulsion capability.
• Georgia Tech Space Systems Design LaboratorycoreStrategic or Co-development Partner · 1 August 2023Georgia Tech designed, assembled, integrated, tested, and will operate NASA's dual-mode spacecraft. Rubicon provides chemical propulsion system enabling shared ASCENT architecture for the mission.
• Flight Works Inc.majorStrategic or Co-development Partner · 1 May 2023NASA SBIR Sequential Award subcontract for high throughput 5N thruster supporting Flight Works' Orbital Maneuvering Vehicle (OMV) for lunar or deep space missions. Combines Rubicon's ASCENT thruster with Flight Works' pump technology for monopropellant OMV performance rivaling bipropellant systems.
• NASA Marshall Space Flight CentercoreStrategic or Co-development Partner · 1 July 2022Long-standing partnership for ASCENT propulsion technology development. NASA selected Plasma Processes/Rubicon to build thrusters for Lunar Flashlight mission. Rubicon delivers propulsion systems for NASA Dual-Mode Mission (GPDM). NASA MSFC manages mission and propulsion system development. Rubicon's Director previously served as NASA MSFC's Center Deputy Chief Technologist.
• Plasma Processes LLCcoreOthersParent company of Rubicon Space Systems. Provides advanced materials solutions including high-temperature coatings and refractory metal fabrication. Plasma Processes is AS9100D with ISO 9001:2015 certified with secret facility clearance. Rubicon is a division focused on commercializing ASCENT propulsion technology.
• SatSearchminorChannel Partner/ Reseller/ DistributorGlobal product discovery platform for smallsat industry. Hosts Rubicon's product listings including thrusters and propulsion systems, providing visibility to global buyers in the rideshare and smallsat marketplace.
• SpaceXminorOthersLaunch provider for multiple Rubicon-powered missions including NASA Lunar Flashlight (Falcon 9) and future missions. Sprite propulsion system qualified to SpaceX Rideshare Payload User Guide (RPUG) structural requirements.

Scale indicators6 records

Recent moves8 records

Expansion highlights6 records

Emerging players

• Accion Systems: Boston-based smallsat electric propulsion developer using non-toxic ionic liquid electrospray thrusters; an emerging alternative to chemical propulsion for the same CubeSat/SmallSat customer base that Rubicon serves with ASCENT-based thrusters.
• Phase Four: Smallsat electric propulsion company offering RF thrusters for cubesats and smallsats; competes with Rubicon for the same mission profiles (orbit adjustment, stationkeeping, deorbit) using a fundamentally different propulsion modality.
• Morpheus Space: Germany-based provider of smallsat electric propulsion (field-effect thrusters); serves the same in-space mobility use cases as Rubicon's Sprite and Velox product lines for global commercial and constellation customers.

Direct peers

• Momentus Space: U.S. in-space transportation and orbital services company providing satellite mobility (orbital transfer vehicles and hosted propulsion); competes with Rubicon for the same responsive space and orbital maneuvering mission set, including AFWERX-style government contracts.
• Dawn Aerospace: New Zealand-based provider of smallsat propulsion modules and green chemical thrusters, with comparable plug-and-play mobility offerings for CubeSats and small spacecraft; competes head-to-head for rideshare and constellation propulsion contracts.
• Benchmark Space Systems: Vermont-based in-space mobility startup offering smallsat propulsion systems including green propellant thrusters; directly competes with Rubicon in the CubeSat/SmallSat propulsion category with a comparable enterprise sales motion targeting satellite primes.
• Nammo (Nammo Raufoss): Norwegian aerospace company that developed the HPGP (High Performance Green Propellant) thruster line as a direct ASCENT alternative for smallsat propulsion; competes with Rubicon in green monopropellant thrusters serving NASA, ESA, and commercial primes.

Others

• Astra Space: Acquired Apollo Fusion in 2021 to add electric propulsion for its satellite bus business; an adjacent commercial space player pursuing in-space mobility as part of a broader launch and spacecraft platform offering rather than as a pure propulsion specialist.

Broad incumbents

• Aerojet Rocketdyne (L3Harris): Legacy U.S. propulsion prime producing rocket engines and in-space thrusters including electric and chemical propulsion; broader portfolio but directly overlaps with Rubicon in monopropellant thrusters for civil and defense spacecraft.
• Moog Inc. (Space and Defense): Established supplier of spacecraft propulsion components, monopropellant and bipropellant thrusters, and fluid systems; competes with Rubicon across larger satellite platforms and also employs many propulsion engineers with relevant heritage.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/rubicon-space-systems

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about Rubicon Space Systems