What Catalsys does

Catalsys is a UK-based clean-energy technology company that has developed a proprietary ammonia-cracking reactor designed to unlock green ammonia as a drop-in fuel for conventional power generators. The company addresses the off-grid decarbonisation blind-spot where grid connections take 12–48 months and projects are forced to rely on diesel gensets; its modular cracker converts NH3 into an optimal H2/NH3/N2 blend that combusts in standard, unmodified gensets, delivering 50kW to 3+MW of zero-carbon electricity at an LCOE of approximately £0.35/kWh, on-par with diesel (£0.34/kWh) and substantially below biodiesel or green-hydrogen fuel cells. The intellectual property is anchored by two patent applications covering the lower-temperature reactor design, a proprietary catalyst, and a novel control system for stable combustion and low NOx, with an independent IP valuation of £11.5–13.2m.

The business model centres on hardware sales of CATALSYS-powered generator systems, distributed primarily through joint-venture channel partners rather than a captive salesforce: Asoto OU assembles and distributes 1–3MW systems across Europe, and SkiesFifty targets airport ground operations. The company's first commercial pilot is a 100kW deployment with Skanska on a UK construction site in 2026, while additional target verticals include construction & mining, data centres, ports & airports, and EV charging. Technical validation has been completed with Teesside University, Brunel University London, and JBA Engineering, and the company has been funded to date by a ~$2.28 million UK Research and Innovation grant in February 2023. Catalsys is privately held by its three co-founders — Kevin Fothergill (CEO), David Hughes (Chairman), and Peter Gray (CTO) — each bringing 25–35+ years of experience from ICI, Johnson Matthey, Huntsman, SABIC, CNRS, and BHP.

Name

Catalsys

Legal name

Catalsys

Website

https://catalsys.com

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

1–10 employees

Short description

Catalsys is a UK clean-energy company that has developed a proprietary ammonia-cracking reactor enabling green ammonia to be burned in conventional gensets, delivering 50kW–3+MW of zero-carbon off-grid power at diesel-parity cost for construction, mining, data-centre, port, airport, and EV-charging customers.

Ownership category

akta.pro rank

Product category

Off-grid clean power generation systems

NAICS

Electrical Equipment Manufacturing (3353), Electric Power Generation (22111), Industrial Gas Manufacturing (32512)

SIC

Motors & Generators (3621), Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Microgrid & Distributed Grid Equipment (Controllers, Switchgear Packages, DER Interconnection) (IMAGAAAJ)

Keywords

• Ammonia cracking technology
• Green ammonia power generation
• Off-grid clean energy
• Modular generator systems
• Hydrogen fuel systems

Headquarters

HQ city

Hartlepool

HQ country

United Kingdom

HQ region

Europe

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Generator Systems Sales: Sale of CATALSYS-powered generators (50kW to 3+MW) through JV partnerships. The company provides proprietary cracking technology integrated with conventional gensets for modular, off-grid green electricity generation.

Go-to-market motion1 record

Distribution channels3 records

Core offering

Catalsys designs and sells a proprietary modular ammonia-cracking reactor (the CATALSYS cracker) that converts green ammonia (NH3) into an H2/NH3/N2 mixture for combustion in standard power generators, delivering modular 50kW to 3+MW off-grid green electricity at an LCOE of approximately £0.35/kWh. The system integrates with conventional gensets without requiring fuel cells, packages into standard shipping containers for rapid deployability, and is sold as complete CATALSYS-powered generator systems through direct enterprise sales and JV/channel partnerships.

Product overview

Catalsys offers a unified power generation system centered on its proprietary CATALSYS reactor/cracker technology. The system converts green ammonia into a hydrogen/nitrogen mixture that burns in standard, conventional generators—providing a drop-in zero-carbon solution without requiring complex fuel cells. The portfolio consists of the CATALSYS modular reactor (which cracks ammonia at lower temperatures using genset exhaust heat) paired with off-the-shelf power generators to deliver 50kW to 3+MW capacity. The company also provides swappable T50 ISO tank-based fuel solutions and proprietary control systems for stable combustion and low NOx emissions. All components are proven in other applications (automotive) for reliability and volume-pricing.

Differentiator

Problem solved

Functional benefit

Products and services

• CATALSYS Reactor/Cracker A proprietary modular reactor that cracks ammonia (NH3) into an optimal H2/NH3/N2 mixture for combustion in standard power generators, enabling zero-carbon electricity generation using existing genset infrastructure. Sold as the core component of Catalsys's power systems to industrial buyers in construction, mining, data centres, ports, airports, and EV charging.
• Green Ammonia Power Generation System A complete modular power solution delivering 50kW to 3+MW of clean electricity by combining the CATALSYS reactor with conventional gensets, using green ammonia as fuel with rapid startup and diesel-competitive LCOE (approximately £0.35/kWh). Containerised deployment using standard 40ft hi-cube shipping containers houses up to 1MWe of generation with 1.5 days of continuous operation at an average of 750kWe and hot-swappable T50 ISO tank fuel supply.

Quantifiable outcome

• LCOE of £0.35/kWh on-par with diesel (£0.34/kWh), far lower than green H2 fuel cells (£0.78/kWh) or bio diesel (£0.62/kWh)
• +1 more outcomes

Named customers3 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

Feature3 records

Partnerships

Four partnerships are on record, tiered core and minor.

• SkanskacoreStrategic or Co-development Partner · 1 January 2026Agreement with the 5th largest construction firm globally to deploy a 100kW CATALSYS generator on a UK construction site in 2026. This represents the company's first commercial pilot deployment.
• Asoto OUcoreChannel Partner/ Reseller/ DistributorJV agreement with European leader in bespoke generator systems to assemble and distribute 1-3MW CATALSYS-powered generators in Europe. Strategic channel partner for scaling deployment.
• SkiesFiftycoreChannel Partner/ Reseller/ DistributorJV agreement to collaborate on airport ground operations use cases. Channel partner focused on decarbonisation opportunities at airports.
• JBA EngineeringminorImplementation/ SI/ Consulting PartnerFull process design and safety review completed by JBA Engineering. Third-party engineering validation of system design and safety.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Amogy: Amogy develops ammonia-to-power cracking systems for trucks and stationary applications. Directly comparable as an ammonia cracking technology company targeting zero-carbon power, with overlapping technical approach and target markets in heavy-duty/off-grid power.
• AFC Energy: AFC Energy builds hydrogen fuel cell power generation systems targeting industrial off-grid and construction use cases. Competes with Catalsys for the same grid-constrained industrial customers seeking clean, deployable power.

Broad incumbents

• Cummins: Cummins is a global incumbent manufacturer of diesel and gas generator sets. Directly competes in the genset equipment space that Catalsys' cracker integrates with, and could enter ammonia-fuelled gensets with substantially deeper resources.
• Aggreko: Aggreko is a global leader in temporary and off-grid power rental, including for construction and events. Overlaps heavily with Catalsys' target use cases (construction sites, off-grid industrial) and could adopt or compete with Catalsys' ammonia technology.
• Rolls-Royce Power Systems (MTU): Rolls-Royce/MTU manufactures large gensets and is actively pursuing low-carbon fuel solutions. Could integrate ammonia cracking into its genset portfolio, competing with Catalsys in the multi-MW off-grid segment.
• Caterpillar: Caterpillar is a leading manufacturer of diesel generator sets and is investing in hydrogen and low-carbon power. Competes with Catalsys in the genset market and could develop or partner for ammonia-cracking solutions.

Emerging players

• Ceres Power: Ceres Power develops solid oxide fuel cell technology for clean power generation. Targets a similar decarbonised distributed power opportunity, though using fuel cells rather than ammonia cracking.
• Plug Power: Plug Power is a major hydrogen fuel cell systems company building end-to-end green hydrogen solutions. Competes in the clean off-grid industrial power space and has the capital base to acquire or replicate ammonia-cracking IP.
• Ballard Power Systems: Ballard is a global fuel cell leader targeting heavy-duty mobility and stationary power. Overlaps with Catalsys' customer segments (industrial, off-grid) and represents a competing clean-power architecture.
• FuelPositive: FuelPositive develops green ammonia production and dispensing systems with applications in agriculture and industrial power. Tangentially comparable as a green ammonia technology company targeting industrial decarbonisation use cases.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/catalsysuk

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds1 record

Investors1 record

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 Catalsys