What Enpulsion does

Enpulsion GmbH, founded in 2016 in Wiener Neustadt, Austria (originally as AMR Propulsion Innovations, a spin-off from FOTEC), designs and manufactures Field Emission Electric Propulsion (FEEP) systems for small satellites. Its technology uses liquid indium as propellant, electrostatic field emission to generate ions, and offers specific impulse up to 4,500-6,000 seconds with no pressurized tanks, no moving parts, and ITAR-free export status. The product portfolio is a ladder of modular thrusters — Nano R³ for CubeSats up to 25 kg, Micro R³ for 10-100 kg spacecraft, and the newly launched Nexus for ESPA-class smallsats up to 500 kg — complemented by the Cortex Smart Mobility Interface, a unified controller that can command up to four thrusters over RS422/RS485/CAN. As of the most recent company disclosures, 280-320+ Enpulsion propulsion systems are operating on orbit with 420-500+ cumulative years of flight heritage.

Enpulsion sells directly to satellite manufacturers and operators through an enterprise field-sales motion, with quote-based pricing, multi-year contracts, and 30-week standard lead times. Revenue is generated from one-time hardware sales of complete, pre-filled thruster units and, to a lesser extent, from engineering support, integration workshops, and on-orbit mission assistance. Customer segments are primarily smallsat integrators (CubeSat, MicroSat, SmallSat) and commercial constellation operators, with growing attention to government and defense customers in the US and EU, plus a longer-tail space exploration use case for deep-space precision maneuvers. Named customers include OHB Sweden, EnduroSat (100-unit order in November 2024), Space Inventor, Blue Canyon Technologies, Astro Digital, and Zentrum für Telematik.

The company is privately held, headquartered near Vienna International Airport in Schwechat with additional offices in Toulouse and Boston, operates a 4,000 sqm manufacturing facility, and employs 51-100 people. It claims to be among the few profitable deep-tech space companies globally, and in March 2026 raised €22.5 million from Nordwind Growth — its first significant outside funding since founding — to scale production, develop next-generation mobility systems, and expand into the US market.

Name

Enpulsion

Legal name

ENPULSION GmbH

Website

http://www.enpulsion.com/

Company type

Private

Founded year

2016

Operating status

Operating

Headcount range

51–100 employees

Short description

Enpulsion GmbH designs and manufactures modular Field Emission Electric Propulsion (FEEP) thrusters using liquid indium propellant for small satellites, serving satellite manufacturers, constellation operators, and government/defense customers across CubeSat to 500 kg spacecraft classes.

Ownership category

akta.pro rank

Product category

Satellite Propulsion Systems

NAICS

Guided Missile and Space Vehicle Propulsion Unit and Propulsion Unit Parts Manufacturing (336415), Aerospace Product and Parts Manufacturing (33641)

SIC

Guided Missiles & Space Vehicles & Parts (3760)

akta.pro primary industry

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

akta.pro secondary industry

Spacecraft & Satellites (Civil/Commercial) (IMABACAB)

Keywords

• Electric propulsion systems
• Satellite propulsion hardware
• FEEP thrusters
• In-orbit mobility
• Smallsat propulsion

Headquarters

HQ city

Wiener Neustadt

HQ country

Austria

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Propulsion Systems Hardware Sales: Sale of electric propulsion systems including Nano R3, Micro R3, and Nexus thrusters. Each system is a complete, self-contained propulsion unit with propellant loaded. Revenue generated from one-time hardware purchase with varying configurations based on satellite class.
2. Engineering Support Services: On-ground and on-orbit technical support, FEEP workshops for customer teams, and mission planning assistance. Optional service packages provided during integration and mission execution phases.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

Enpulsion designs, manufactures, and sells indium-propellant Field Emission Electric Propulsion (FEEP) thrusters for small satellites. The product line covers Nano R³ for CubeSats up to 25 kg, Micro R³ for 10–100 kg spacecraft, and Nexus for ESPA-class spacecraft up to 500 kg, plus the Cortex Smart Mobility Interface for unified thruster control. Systems are sold as self-contained, pre-filled, plug-and-play units with engineering and mission-planning support.

Product overview

Enpulsion offers a modular FEEP (Field Emission Electric Propulsion) product portfolio for micro- and nanosatellites. The portfolio consists of three propulsion systems—Nano R³ for CubeSats up to 25kg, Micro R³ for small satellites 10-100kg, and Nexus for smallsats 150-500kg—plus the Cortex Smart Mobility Interface for unified thruster control. All products are based on proprietary indium-fed FEEP technology that delivers high specific impulse (up to 4,500-6,000s), micro-Newton precision thrust control, and modular scalability. Systems are offered as self-contained, plug-and-play units with standardized interfaces enabling clustering for higher thrust missions.

Differentiator

Problem solved

Functional benefit

Brands

• Nexus: High power propulsion system with unrivaled impulse density, for medium-sized spacecraft up to 500 kg
• Micro R³
• Nano R³
• Cortex Smart Mobility Interface

Products and services

• Nano R³ Propulsion System Compact, flight-proven FEEP propulsion system for CubeSats and small spacecraft up to 25 kg. Delivers 150–350 µN thrust with 2,500 seconds specific impulse, enhanced radiation tolerance, improved thermal design and protective casing for onboard electronics. Sold as a pre-filled, ready-to-fly unit to satellite manufacturers and operators.
• Micro R³ Propulsion System Modular, high-performance FEEP propulsion system for 10–100 kg small and medium spacecraft. Delivers 0.5–1 mN thrust with 2,700 seconds specific impulse and scalable thrust modules for higher-thrust missions up to 26 kNs total impulse. Targeted at MicroSat integrators needing clusterable, plug-and-play propulsion.
• Nexus Propulsion System Most powerful FEEP propulsion system from Enpulsion, designed for ESPA-class spacecraft up to 500 kg. Delivers 700 µN–1.72 mN thrust (scalable in clusters of 1–4 units) with up to 4,500 seconds specific impulse and up to 30,000 Ns total impulse per unit. Positioned as a Hall-Effect-Thruster alternative for the smallsat class.
• Cortex Smart Mobility Interface

Quantifiable outcome

• 320+ propulsion systems operating in orbit with proven reliability
• +3 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

Integration3 records

Feature5 records

Partnerships

One partnership is on record.

• R-SpaceminorStrategic or Co-development Partner · 19 March 2026Collaboration on OOBI (On-Orbit Behaviour of Indium) project investigating liquid metal behavior in micro-gravity environment. Enpulsion supports the experimental platform with R-Space's CubeSat-based Greenbox platform (9.2×8.7×3.2 cm) used for studying Indium distribution at melting point (~156°C) in orbital conditions.

Scale indicators10 records

Recent moves9 records

Expansion highlights6 records

Direct peers

• Busek: US-based electric propulsion developer producing Hall-effect thrusters, FEEP, and other in-space propulsion systems for small satellites and defense customers. Directly competes with Enpulsion in the smallsat electric propulsion market, including on US government programs.
• Accion Systems: US-based electrospray propulsion company targeting small satellites with non-toxic, scalable thrusters. Competes head-to-head with Enpulsion's Nano and Micro product lines in the CubeSat/MicroSat segment with similar form factor and Isp positioning.
• Phase Four: US-based RF thruster developer for small satellites, offering an alternative non-chemical propulsion architecture. Competes with Enpulsion for constellation customers seeking compact, electric orbit-raising and station-keeping solutions.
• ThrustMe: French electric propulsion company developing iodine-based and plasma thrusters for small satellites. Closest European competitor to Enpulsion with comparable flight heritage and smallsat customer overlap, especially in European institutional missions.
• Morpheus Space: German smallsat electric propulsion company offering nano and micro thrusters with field emission technology roots. Direct European competitor targeting similar CubeSat and smallsat integrators with comparable miniaturized thruster products.
• SITAEL: Italian space propulsion manufacturer producing Hall-effect and electric thrusters for small to medium satellites. Competes with Enpulsion's Nexus-class offering for ESPA-class spacecraft and institutional European customers.

Broad incumbents

• IHI Aerospace: Japanese aerospace propulsion manufacturer with established electric and chemical thruster product lines. Broader incumbent competing in similar end markets, particularly for government and institutional space missions across Asia.
• Aerojet Rocketdyne (L3Harris): Large US propulsion prime (now part of L3Harris) producing electric and chemical propulsion for a wide range of spacecraft. Competes with Enpulsion on larger and defense programs but does not specialize in the smallsat segment.
• Safran Aircraft Engines (Space Propulsion): European aerospace group with a space propulsion division offering electric and chemical thrusters for satellites. Broader incumbent with diversified propulsion portfolio competing in similar institutional and commercial end markets.

Regional players

• Rafael Advanced Defense Systems: Israeli defense prime with electric propulsion capabilities for small satellites through its space division. Operates in a similar propulsion category but primarily serves Israeli and regional defense customers, with limited overlap in Enpulsion's European/US commercial base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/enpulsion
• YouTubeyoutube.com/channel/UCHqhmb7IshSTxr9m9aXgIKQ
• LinkedInlinkedin.com/company/enpulsion

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries1 record

Funding overview

Funding rounds2 records

Investors1 record

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M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Enpulsion