What Suiso does

Suiso Limited is a UK-based cleantech company developing a proprietary microwave-driven methane pyrolysis process that decarbonises hydrocarbon gases — natural gas, LPG, propane and biogas — prior to combustion in industrial heat applications. The technology diverts input gas through a container-format reactor containing a proprietary low-cost catalyst, separating carbon as a solid particulate before the gas reaches the furnace, boiler, oven, kiln, turbine or engine. The result is a hydrogen-rich fuel blend delivered on-site at the customer's facility, paired with a saleable high-purity activated carbon byproduct branded as Suiso Carbon. The company positions the process as a lower-energy, lower-temperature alternative to conventional pyrolysis and steam methane reforming, with claimed reductions of 97%+ in CO2 emissions versus SMR and 80% less energy than electrolysis, supported by BEIS benchmarking indicating lowest-cost hydrogen in key applications.

The company's product platform comprises the Suiso Gas Decarbonisation System (container-sized unit producing 1.25 tonnes CO2e/day of abatement at launch, targeting 5 tonnes/day in future models), the related Suiso Hydrogen Generator (1,000 kg/day H2 output for on-site power and vehicle refueling), and Suiso Carbon (activated carbon byproduct into water/air purification, food/beverage, pharmaceutical and battery carbon markets). Suiso sells systems directly to industrial end-users through enterprise field sales, supported by pilot demonstrations that act as proof-of-concept gateways to commercial deployments. Pricing is custom and quote-based under multi-year contracts. Its first commercial sale was completed in May 2026 to the University of Sheffield's Advanced Manufacturing Research Centre (AMRC), which is operating the unit as an open-access industrial-scale testbed for fuel-switching trials. The company is headquartered at the Advanced Manufacturing Park in Rotherham, South Yorkshire, is backed by Mercia Ventures / NPIF – Mercia Equity Finance following a £3m seed round in March 2024, and has 1–10 employees.

Name

Suiso

Legal name

Suiso Limited

Website

https://suiso.co.uk

Company type

Private

Founded year

2021

Operating status

Operating

Headcount range

1–10 employees

Short description

Suiso Limited is a UK cleantech company selling container-sized microwave-driven methane pyrolysis systems that decarbonise hydrocarbon gases before combustion for energy-intensive industrial heat users, producing on-site hydrogen-rich fuel and a saleable activated carbon byproduct.

Ownership category

akta.pro rank

Product category

Industrial Decarbonisation Equipment

NAICS

Industrial Gas Manufacturing (325120), Power Boiler and Heat Exchanger Manufacturing (33241)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Hydrogen & Derivative Fuels for Industry (H₂, Ammonia, Methanol) (EUABAJAC)

akta.pro secondary industries

E‑Fuels & Synthetic Hydrocarbons (e‑kerosene, e‑diesel, e‑gasoline, e‑methane) (EUABAIAA), Pre-combustion Capture (Syngas Shift + Physical Solvents: Selexol/Rectisol) (EUABAGAD)

Keywords

• Methane pyrolysis technology
• Industrial heat decarbonisation
• Carbon capture systems
• Hydrogen generation equipment
• Activated carbon production

Headquarters

HQ city

Sheffield

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Gas Decarbonisation System Sales: Suiso sells its gas decarbonisation systems (hardware) to industrial customers. Systems are deployed on-site at customer facilities. Revenue is generated from equipment sales and potentially associated installation and maintenance services. The company sold its first commercial system to the AMRC in May 2026.
2. Activated Carbon Sales: Suiso captures carbon during the decarbonisation process and upgrades it into activated carbon, which is sold for use in water purification, air treatment, industrial filtration, and potentially battery materials. This creates a secondary revenue stream from the byproduct of the decarbonisation process.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels5 records

Core offering

Suiso develops and sells container-format gas decarbonisation systems that use a proprietary microwave-driven methane pyrolysis process to remove carbon from hydrocarbon gases (natural gas, LPG, propane, biogas) before combustion. The units deliver a hydrogen-rich fuel blend to the customer's existing furnaces, boilers, ovens, kilns, turbines and engines, while capturing solid carbon that is upgraded into activated carbon as a saleable byproduct. The technology operates at temperatures well below 1,000°C using a proprietary low-cost catalyst, producing up to 1,000 kg of hydrogen per day per container-sized unit.

Product overview

Suiso offers a suite of gas decarbonisation products built around proprietary microwave-driven methane pyrolysis technology. The core product is the Suiso Gas Decarbonisation System—a container-sized unit that removes carbon from hydrocarbon gases (natural gas, LPG, propane, biogas) before combustion, producing a hydrogen-rich fuel blend for industrial heat appliances (furnaces, boilers, ovens, kilns, turbines, engines) while capturing solid carbon. The related Suiso Hydrogen Generator is a container-sized unit producing 1,000 kg/day of hydrogen for on-site power and vehicle refueling. Both products share the same underlying microwave pyrolysis technology platform. The process also generates Suiso Carbon—a high-value activated carbon byproduct with applications in water/air treatment and batteries—creating an additional revenue stream. The company sells these systems directly to industrial users and operates an upgrading facility where captured carbon is processed into activated carbon.

Differentiator

Problem solved

Functional benefit

Brands

• Suiso Carbon: High surface area, microporous, low ash and moisture, high purity powdered carbon - a pre-cursor to Activated Carbon produced as a byproduct of the decarbonisation process. Has applications in water and air purification, food and beverages, and pharmaceuticals.

Products and services

• Suiso Gas Decarbonisation System Container-sized industrial decarbonisation unit that uses microwave-driven methane pyrolysis with a proprietary low-cost catalyst to remove carbon from natural gas, LPG, propane or biogas before combustion. Delivers a hydrogen/input gas blend to existing heat appliances (furnaces, boilers, ovens, kilns, turbines, engines) and captures carbon as solid particles. Reduces CO2e emissions by over 1.25 tonnes per day initially, scaling to 5 tonnes per day in future versions. Sold directly to industrial enterprises.
• Suiso Hydrogen Generator Shipping container-sized hydrogen generator using microwave-driven methane pyrolysis to produce 1,000 kg or more of hydrogen daily from natural or biogas. Designed for on-site deployment at industrial sites and hydrogen vehicle refueling stations, eliminating the need for expensive hydrogen distribution infrastructure.
• Suiso Carbon High surface area, microporous, low ash and moisture, high-purity powdered carbon produced as a byproduct of the methane pyrolysis decarbonisation process. Near-zero CO2 emissions during production versus 2-4 kgCO2/kgC for traditional activated carbon methods. Sold as a pre-cursor to activated carbon for water and air purification, food and beverage, pharmaceuticals, battery carbons and specialist graphites. Global activated carbon market exceeds $7 billion.

Quantifiable outcome

• 97%+ CO2 reduction vs. steam methane reforming
• +5 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered core and minor.

• AMRC (Advanced Manufacturing Research Centre)coreStrategic or Co-development Partner · 7 May 2026Suiso announced its first commercial sale of a gas decarbonisation system to the AMRC. The AMRC, part of the University of Sheffield and the High Value Manufacturing Catapult network, will deploy Suiso's technology as an open-access industrial-scale testbed for manufacturers to trial hydrogen fuel-switching in industrial processes. The AMRC provides feedback to help drive technology adoption across industries.
• University of Sheffield's Energy Innovation Centre (EIC)coreStrategic or Co-development PartnerSuiso completed a successful three-month pilot demonstration at the EIC, testing its methane-pyrolysis system on an industrial gas-fired furnace with a power rating of up to 300 kW under real-world production conditions. The pilot demonstrated stable hydrogen/natural-gas blends with zero lost-time events and validated compatibility with industrial heat-processing environments.
• Therser UKminorStrategic or Co-development PartnerTherser UK overhauled an industrial furnace as part of the HyDecarb project infrastructure at the AMRC, which includes a gas decarbonisation unit from Sheffield-based Suiso. This collaboration supports the development of open-access industrial-scale testbeds for manufacturers to trial hydrogen fuel-switching.
• Brunel UniversityminorStrategic or Co-development PartnerSuiso participated with Brunel University during UK Hydrogen Week, where CEO Stuart McKnight presented Suiso's approach to H2 generation and contributed to the Blue H2 event discussion, explaining why Suiso's methane pyrolysis produces greener H2 than grid-powered electrolysis.

Scale indicators7 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Hazer Group: Hazer Group is an Australian clean-tech company commercialising a methane pyrolysis process (the "Hazer Process") that decomposes natural gas into hydrogen and graphitic carbon. It is the closest direct competitor to Suiso, using the same core chemistry (CH4 → H2 + solid C) but at a larger scale and with an iron ore catalyst; product overlap with Suiso's hydrogen-fuel and carbon-byproduct thesis is essentially identical.
• Monolith Materials: Monolith Materials is a US-based company operating methane pyrolysis ("thermal carbon black" process) plants to produce hydrogen and carbon black from natural gas. It competes head-to-head with Suiso on the same core chemistry and shared thesis that solid carbon monitisation can underwrite low-carbon H2 economics; both companies target industrial off-takers and sell byproduct carbon.
• C-Zero: C-Zero is a US start-up developing methane pyrolysis ("turquoise hydrogen") technology to produce low-carbon hydrogen plus solid carbon from natural gas. It is a direct emerging-stage competitor to Suiso in the same hydrogen-from-methane-pyrolysis category, targeting industrial energy and climate-tech buyers.

Emerging players

• LanzaTech: LanzaTech is a US/NZ company that produces low-carbon fuels and chemicals from waste gases (including biogas and industrial off-gases) via gas fermentation, with a strong overlap on serving industrial heat customers seeking alternatives to fossil H2 and natural gas. It differs mechanistically (biocatalysis vs. microwave pyrolysis) but addresses the same buyer pain point that Suiso solves.
• ITM Power: ITM Power is a UK-based PEM electrolyser manufacturer building on-site green hydrogen production systems that compete for the same industrial decarbonisation budgets Suiso is pursuing. While ITM uses electricity-driven electrolysis rather than methane pyrolysis, the customer overlap and "distributed on-site H2" positioning make it the most relevant adjacent competitor.
• Carbon Clean: Carbon Clean is a UK-based point-source post-combustion carbon capture provider serving industrial emitters in cement, steel, refining and chemicals — exactly the heavy industries Suiso is approaching with a pre-combustion alternative. It is a peer because both companies attack the same industrial decarbonisation wallet with mutually exclusive technical routes (post- vs. pre-combustion).
• BayoTech: BayoTech builds modular, containerised small-scale hydrogen production units (mostly SMR-based, with hydrogen-on-demand models) for industrial, fueling and remote applications. Its product packaging philosophy (standardised containerised H2 plants) closely mirrors Suiso's H2 Generator approach, making it a meaningful geographic-alternative peer.
• HIF Global: HIF Global is a Chile/US e-fuels developer using green hydrogen to produce synthetic gasoline, diesel and sustainable aviation fuel — a downstream consumer of low-carbon H2 that competes with Suiso for the same underlying hard-to-abate industrial customer segments and for policy-driven low-carbon H2 supply.

Broad incumbents

• Linde plc: Linde is one of the world's largest industrial gas companies, including a substantial hydrogen (grey, blue, and increasingly green) business and merchant on-site H2 supply offerings. As a broad incumbent it competes with Suiso for industrial H2 buyers but lacks a methane-pyrolysis offering; Suiso positions itself as a lower-cost, lower-emissions distributed alternative.
• Air Liquide: Air Liquide is a global industrial gases and hydrogen major supplying merchant, pipeline and on-site H2 to refining, chemicals and heavy industry. It is a relevant comparator for Suiso's on-site hydrogen production value proposition and a clear benchmark incumbent customer base for industrial decarbonisation pilots.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds1 record

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 Suiso