What Pulsar Fusion does

Pulsar Fusion is a UK-based, privately held space propulsion company founded by Richard Dinan in 2017, operating out of a 20,000 sq. ft. headquarters in Bletchley with five vacuum chambers and an ISO Class 5 clean room. The company develops clean in-space propulsion systems across three technology streams: Electric Propulsion (a Hall Effect Thruster product line spanning the 500W LeoBear, 5kW MoonRanger, and 10kW MarsRanger, with proprietary LaB6 cathode integration and magnetic shielding), Rocket Propulsion (an operational Hybrid HDPE / N2O engine at 6-12 kN demonstrated at Mach 7, plus a development-stage Liquid Hydrogen engine at 15 kN), and Fusion Propulsion (the Sunbird system based on Dual Direct Fusion Drive / DDFD architecture, targeting 2 MW of power with 10,000-15,000s specific impulse, with an in-orbit demonstration planned for 2027). The Sunbird first plasma was demonstrated at the Amazon MARS Conference in March 2026.

The company's revenue mechanics combine direct B2B sales of propulsion hardware and engineering services to satellite operators, launch service providers, and deep-space mission planners with government R&D contracts and grants from the European Space Agency, the UK Space Agency, and the UK Atomic Energy Authority. Pricing for propulsion systems is custom and quote-based given mission-specific integration, with multi-year contract cadence. Distribution is primarily direct enterprise field sales — the company has appointed a Director of Sales (Mark Baker) and a Head of US Sales (Susan McCarvell) alongside an embedded network of academic research partnerships with the University of Southampton (where Professor Charlie Ryan serves as Senior Advisor), Cambridge, Cranfield, and the University of Michigan. The company's go-to-market uses government anchors as reference customers to position commercial sales to satellite operators and launch providers.

Pulsar Fusion is founder-controlled, self-funded by Richard Dinan following the sale of a prior consumer-finance business, and supplemented by non-dilutive government grants rather than institutional venture capital. The company holds 11 international patents attributed to the founder, has published technical whitepapers on its Hall Effect Thruster family, and operates ecosystem-building channels including the Rockets & Coffee podcast, the Pulsar Summit, and a Think Tank program for academic blue-sky research.

Name

Pulsar Fusion

Legal name

Pulsar Fusion UK Ltd.

Website

https://pulsarfusion.com

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

Pulsar Fusion is a UK-based, privately held clean space propulsion company developing Hall Effect Thrusters, hybrid rockets, and the pioneering Sunbird nuclear fusion propulsion system for satellite operators, launch providers, and space agencies.

Ownership category

akta.pro rank

Product category

Space 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 industries

Hybrid Rocket Engines (IMABADAG), Rocket Engines (Liquid) (IMABADAE)

Keywords

• Space propulsion systems
• Hall effect thrusters
• Electric propulsion hardware
• Hybrid rocket engines
• Nuclear fusion propulsion

Headquarters

HQ city

Bletchley

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Electric Propulsion Systems Sales: Sale of Hall Effect Thruster systems (500W, 5kW, 10kW) to satellite operators for station-keeping, orbital maneuvers, and deep-space missions. Systems include proprietary Power Processing Units and control electronics.
2. Rocket Engine Sales: Sale of hybrid rocket engines (HDPE/N2O) and liquid hydrogen engines to launch service providers and space transportation companies.
3. Government Contracts and R&D Services: Revenue from ESA contracts and UK Space Agency grants for propulsion technology development, including the Hall-Effect Thruster development contract and nuclear propulsion shielding work with UKAEA.
4. Consulting and Engineering Services: Engineering services including propulsion system integration, testing, and consultancy for spacecraft manufacturers.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels9 records

Core offering

Pulsar Fusion manufactures and sells space propulsion hardware across electric, chemical, and fusion technology streams. Its Electric Propulsion portfolio includes three Hall Effect Thruster models (500W LeoBear, 5kW MoonRanger, 10kW MarsRanger) sold to satellite operators for station-keeping, orbit transfer, attitude control, and deep-space maneuvers. Its Chemical Propulsion portfolio features an operational N2O/HDPE hybrid rocket engine and an in-development liquid hydrogen engine for launch providers. Its Fusion Propulsion program centers on the Sunbird Dual Direct Fusion Drive (DDFD) system, targeting in-orbit demonstration in 2027 for interplanetary missions. The company also delivers propulsion engineering services and participates in government R&D contracts.

Product overview

Pulsar Fusion is a clean space propulsion systems company operating across two main technology streams: Electric Propulsion and Fusion Propulsion. The Electric Propulsion portfolio includes three Hall Effect Thruster (HET) models: LeoBear (500W), MoonRanger (5kW), and MarsRanger (10kW), designed for satellite station-keeping, orbital transfer, and deep-space missions. The Rocket Propulsion portfolio comprises an operational Hybrid HDPE Engine and a development-stage Liquid Hydrogen Engine. The Fusion Propulsion program centers on the Sunbird system, powered by Dual Direct Fusion Drive (DDFD) technology, planned for in-orbit demonstration in 2027. The company offers products across the propulsion technology readiness spectrum, from operational chemical/electric thrusters to pioneering fusion-based systems.

Differentiator

Problem solved

Functional benefit

Brands

• Sunbird: Dual Direct Fusion Drive (DDFD) nuclear fusion engine providing both thrust and electrical power for interplanetary spacecraft. 2MW power, 10,000-15,000s specific impulse, designed to propel 1000kg spacecraft to Pluto in 4 years.
• LeoBear
• MoonRanger
• Marsranger
• Rockets & Coffee

Products and services

• LeoBear 500W Hall Effect Thruster A 500W-class Hall Effect Thruster for small satellite propulsion, using Krypton or Xenon propellant, producing 12-36 mN thrust with specific impulse of 1,300-2,500 seconds and anode efficiency up to 49% with Xenon. Includes integrated in-house LaB6 cathode for reliable low-power startup. Sold to commercial and government satellite operators.
• MoonRanger 5kW Hall Effect Thruster A 5kW-class Hall Effect Thruster for lunar and deep-space missions, achieving maximum thrust of 104 mN with Krypton and specific impulse of 1,891 seconds at 38% anode efficiency. Operates with both Xenon and Krypton propellants. Sold to launch service providers and satellite operators.
• MarsRanger 10kW Hall Effect Thruster A 10kW-class magnetically-shielded Hall Effect Thruster developed in partnership with Southampton University for Mars missions and deep-space propulsion, achieving thrust up to 175 mN, specific impulse exceeding 1,875 seconds, and 31.4% anode efficiency. Supports both Xenon and Krypton propellants. Sold to satellite operators and deep-space mission integrators.
• Sunbird Fusion Propulsion System A nuclear fusion-powered spacecraft propulsion system based on Dual Direct Fusion Drive (DDFD) technology, delivering 2 MW of electrical power and specific impulse of 10,000-15,000 seconds. Designed to propel 1,000 kg-class spacecraft to Pluto in 4 years and cut Mars transit to roughly 150 days with a 38% delta-V reduction. Marketed to deep-space mission operators, space agencies, and science mission integrators.
• Hybrid HDPE Rocket Engine An operational hybrid rocket engine using Nitrous Oxide (N2O) oxidizer and High Density Polyethylene (HDPE) solid fuel, producing 6-12 kN thrust at 180 seconds specific impulse. Uses recyclable plastic fuel and a common medical-anesthetic oxidizer for safer, simpler handling. Sold to launch service providers and suborbital/orbital tourism operators.
• Liquid Hydrogen (LH2) Rocket Engine An in-development liquid hydrogen/liquid oxygen rocket engine producing 15 kN thrust with specific impulse of 4,225 m/s (430s). Targeted at upper-stage and in-space transportation applications. Sold to launch service providers.

Quantifiable outcome

• Spacecraft speeds up to 800,000 km/h with fusion propulsion
• +7 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered flagship, core and minor.

• European Space Agency (ESA)flagshipStrategic or Co-development Partner · 1 December 202518-month contract from ESA to develop Hall-Effect Thruster technology, partially funded by UK Space Agency to enhance Europe's space propulsion capabilities.
• UK Atomic Energy Authority (UKAEA)coreStrategic or Co-development Partner · 1 March 2025UKAEA assisting with neutron shielding and activation modelling for the Sunbird nuclear fusion-powered space tug.
• University of MichigancoreStrategic or Co-development Partner · 1 August 2023Partnership funded by UK Space Agency's £20 million international bilateral fund to advance nuclear fusion rocket engine technology.
• University of SouthamptoncoreStrategic or Co-development PartnerAcademic research partner for Hall Effect Thruster development, testing, and electric propulsion research. Professor Charlie Ryan serves as Senior Advisor on Electric Propulsion.
• University of CambridgecoreStrategic or Co-development PartnerAcademic research partner for propulsion technology development.
• Cranfield UniversitycoreStrategic or Co-development PartnerAcademic partner for space systems engineering and astronautics research.
• Catapult Satellite ApplicationsminorStrategic or Co-development PartnerCommercial partner in satellite applications sector.

Scale indicators9 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Phase Four: US-based manufacturer of radio-frequency Hall Effect Thrusters for small satellites, directly competing with Pulsar's LeoBear/MoonRanger/MarsRanger product line for LEO station-keeping and orbit-raising customers.
• Accion Systems: Boston-based developer of electrospray electric propulsion for small satellites, directly competing with Pulsar Fusion in the commercial electric propulsion market for cubesats and small spacecraft operators.
• ThrustMe: French electric propulsion company building iodine-fueled Hall Effect and gridded ion thrusters; a close direct peer to Pulsar's HET portfolio and a fellow European competitor in ESA-funded EP programs.
• Busek: US manufacturer of Hall Effect Thrusters, ion engines, and chemical propulsion for small satellites and spacecraft, with deep flight heritage; competes directly with Pulsar across several HET power classes.
• SITAEL: Italian aerospace company developing Hall Effect Thrusters and electric propulsion subsystems for institutional and commercial satellite operators across LEO and GEO; competes in the same ESA-funded European EP ecosystem as Pulsar.

Emerging players

• Morpheus Space: German startup developing miniaturized Hall Effect and ion thrusters for small satellites; overlaps with Pulsar's LeoBear-class HET product for emerging Smallsat customers.
• Dawn Aerospace: New Zealand/Dutch in-space propulsion company developing green chemical and electric thrusters for small satellites; partially overlaps with Pulsar's hybrid rocket and smallsat electric propulsion offerings.

Broad incumbents

• Aerojet Rocketdyne (L3Harris): Major US propulsion prime offering Hall thrusters, chemical engines, and aerospace propulsion across civil and defense space programs; a broad incumbent competing for the same satellite-operator RFQs as Pulsar.
• Safran: European aerospace propulsion leader with PPS-5000 and PPS-1350 Hall Effect Thrusters; a broad incumbent competing in the same European institutional market and operating similar EP product lines.
• Rocket Lab: Publicly listed launch and spacecraft platform provider; uses HETs on its Photon bus and competes with Pulsar both in propulsion subsystem supply and upper-stage / in-space transportation missions.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/pulsarfusion
• YouTubeyoutube.com/channel/UCZgHhaqcnhB7Gn1Bl8Cczg
• Facebooken-gb.facebook.com/pulsarnuclearfusion
• LinkedInlinkedin.com/company/applied-fusion-company
• Instagraminstagram.com/pulsarfusion

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

Funding overview

Funding rounds3 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

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

Frequently asked questions about Pulsar Fusion