What RJM International does

RJM International (legal entity: RJM Corporation (EC) Limited) is a privately-held specialist engineering company founded in 1977 in the USA and headquartered in Winchester, UK since a 2005 management buy-out by John Goldring. The company designs, engineers, and supplies combustion and emissions-reduction hardware and services for thermal power plants, energy-from-waste facilities, biomass plants, and heavy industrial operators (steel, sugar, refining, district heating). Its product portfolio is anchored by a proprietary ultra-low NOx burner family (for coal, gas, oil, and multi-fuel applications) developed continuously since inception, the patented Separated Under Fire Air (SUFA) and Combustion Tempering systems, and the IMPULSE® shockwave boiler cleaning system derived from GE pulse detonation propulsion technology, with 391+ units deployed across 77 plants. Complementary systems include Flue Gas Recirculation (FGR), Over Fire Air (OFA) staging, SNCR, Burner Management & Combustion Control systems, and complete coal-to-gas and coal-to-biomass conversion packages.

The company's business model combines bespoke one-time equipment sales (custom-engineered burners and cleaning systems), professional engineering services (site surveys, CFD modelling, fuel assessment, benchmarking, commissioning, optimization), and a growing recurring revenue stream from 24/7 spare parts, remote monitoring, and Technical Services Agreements. RJM sells exclusively through direct enterprise field sales via wholly-owned subsidiaries in the UK, USA, Singapore, and Malaysia, supported by alliances with EPCs such as Wood plc and WSP. The customer base exceeds 300 enterprises across more than 18 countries, with marquee references including AES (Vietnam, Hungary, Bulgaria), Eren Enerji (Turkey), Irving Oil, Drax, Exelon, AGL (Australia), Shell, Paiton (Indonesia), and EDP, with cumulative plant improvements exceeding 60,000MW. Revenue is not publicly disclosed; the firm is privately held by management with no external institutional or private equity investment identified.

Name

RJM International

Legal name

RJM Corporation (EC) Limited

Website

https://rjm-international.com

Company type

Private

Founded year

1977

Operating status

Operating

Headcount range

11–50 employees

Short description

RJM International is a privately-held specialist engineering firm that designs and supplies proprietary ultra-low NOx burners, IMPULSE® shockwave boiler cleaning systems, and combustion engineering services for thermal power plants, energy-from-waste, biomass, and heavy industrial operators across Europe, the Americas, and Asia-Pacific.

Ownership category

akta.pro rank

Product category

Emissions Reduction & Combustion Engineering Equipment

NAICS

Power Boiler and Heat Exchanger Manufacturing (33241), Heating Equipment (except Warm Air Furnaces) Manufacturing (333414)

SIC

Heating Equipment, Except Electric & Warm Air Furnaces (3433)

akta.pro primary industry

Industrial Boilers, HRSGs & Steam Generators (IMAHAFAF)

akta.pro secondary industries

Waste Heat Recovery & Heat Integration (HRSG/ORC, Pinch Analysis, Heat Exchangers) (EUABAJAF), Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC)

Keywords

• Ultra-low NOx burners
• Combustion engineering services
• Emissions reduction technology
• Boiler cleaning systems
• Flue gas recirculation

Headquarters

HQ city

Winchester

HQ country

United Kingdom

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Emissions Reduction Products: Sale and installation of ultra-low NOx burners, IMPULSE cleaning systems, FGR systems, and related combustion equipment for power plants. Products are custom-engineered for each application.
2. Engineering Services: Combustion audits, site surveys, CFD modelling, combustion optimization, fuel assessment, benchmarking, and technical consulting services. Services complement products and are typically bundled in project engagements.
3. Product Support & Spares: 24/7 product support, spare parts, and technical service agreements for installed equipment. Includes remote monitoring capabilities.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

RJM International designs, manufactures, and supplies proprietary ultra-low NOx burner systems and the IMPULSE® shockwave boiler cleaning system for power plants and industrial operators, complemented by combustion engineering services (site surveys, CFD modelling, fuel assessment, optimisation, and conversion projects). Solutions are custom-engineered for coal, gas, oil, biomass, and multi-fuel firing applications and span the full project lifecycle from audit through commissioning and ongoing support.

Product overview

RJM International is a specialist provider of combustion and emissions engineering solutions for power generation and industrial plants. The company offers a portfolio of hardware products centered around ultra-low NOx burners (for coal, gas, oil, and multi-fuel applications) and the IMPULSE® shockwave boiler cleaning system, complemented by a comprehensive suite of engineering services including CFD modelling, combustion optimization, fuel assessment, and plant performance studies. Products include ultra-low NOx burners for coal, gas, and industrial applications; IMPULSE® online boiler cleaning systems; multi-fuel burners; Flue Gas Recirculation systems; Separated Under Fire Air (SUFA) systems; and combustion staging technologies like Over Fire Air and SNCR systems. Services span the project lifecycle from site surveys and combustion audits through CFD analysis, engineering design, installation, and ongoing 24/7 product support, enabling end-to-end solutions for coal-to-gas conversions, biomass conversions, and Energy from Waste plant upgrades.

Differentiator

Problem solved

Functional benefit

Products and services

• Ultra-low NOx Coal Burners Award-winning ultra-low NOx burner technology designed for every firing configuration and coal type including lignite and high moisture coals; achieves 200-250 mg/Nm3 (100-125 ppm) NOx on 500MWe boilers, reducing or eliminating the need for secondary NOx reduction measures. For utility-scale coal-fired power plants.
• Ultra-low NOx Gas Burners Proven gas burner technology with sub-100mg/Nm3 NOx capability when combined with FGR; designed for small to large-scale utility boilers, featuring stable flame across turndown and operation at less than 1% excess O2. For utility power generation operators.
• Ultra-low NOx Industrial Gas Burners Innovative gas burners sized 20-100MWth for industrial applications including factories with on-site heat and power demand and district heating plants; achieves NOx below 15ppm at 3% O2 with CO below 30ppm at 3% O2. For industrial process plants and district heating operators.
• IMPULSE® Online Boiler Cleaning System Advanced shockwave boiler cleaning system using supersonic shockwaves to dislodge material build-up on boiler surfaces; non-line-of-sight system that wraps around tubes and reaches complex geometries without erosive damage. Over 391 units installed across 77 power plants worldwide. For power plant and industrial boiler operators.
• Multi-Fuel Burners Burner capable of firing coal, gas, oil, or biomass with full load operation across all fuel types; designed to control fuel costs and protect against security-of-supply issues while delivering ultra-low NOx capability. For power plant operators seeking fuel flexibility.
• Ultra-low NOx Oil Burners Oil burner technology developed over 30 years in partnership with the International Flame Research Foundation; suitable for every firing configuration and various multi-fuel combinations, minimising or obviating the need for secondary NOx reduction measures. For oil- and multi-fuel-fired power and industrial plants.
• Coal-to-Biomass Conversion Solutions End-to-end conversion solution covering material handling, fuel storage, fuel engineering, mill modifications, firing system upgrades, safety assessments, and emission control system revisions to enable operators to switch from coal to biomass firing. For coal-fired power plant owners seeking decarbonisation.
• Coal-to-Gas Conversion Solutions Complete coal-to-gas conversion solutions enabling power plants to transition from coal to natural gas firing; includes design of ultra-low NOx gas burners, BFG (Blast Furnace Gas) capability, and hydrogen-ready configurations. For coal-fired utility operators seeking fuel-switching capability.
• Biomass & Energy from Waste Firing Systems Comprehensive firing system solutions for biomass and Energy from Waste plants delivering improvements to availability, efficiency, and reliability using extensive CFD and DEM modelling. For biomass and EfW plant operators.
• RDF and SRF Conversion Solutions Fuel diversification solutions enabling plant operators to fire Refuse Derived Fuel (RDF) and Solid Recovered Fuel (SRF), supported by university R&D, full CFD modelling capability, and optimised material handling. For waste-to-energy and EfW operators.
• RJM Spares & 24/7 Product Support Full range of RJM-designed and manufactured components from single nozzles to full firing systems, with global QA-approved supply chain, ISO certifications, and 24/7 call-out capability worldwide. For owners of installed RJM equipment across power and industrial plants.
• Site Survey (Combustion Audit) Initial engineering stage to understand current plant status; evaluates equipment condition, setup, operations, performance, and physical limitations while benchmarking combustion and measuring current performance. For power plant and industrial operators commissioning improvement projects.
• CFD Modelling Service Computational Fluid Dynamics modelling creating virtual plant models to understand fuel/air flow, flame profile, and combustion parameters, enabling optimisation of burner configuration, nozzle size, location, and operational settings. For power and industrial plant engineering teams.
• Combustion System Engineering Engineering and custom-engineering of combustion system solutions for retrofitting on existing plants within process and mechanical limitations, covering a wide variety of boiler types, sizes, OEMs, and fuels. For plant owners undertaking retrofits or upgrades.
• Combustion Optimisation+ Evaluation and optimisation of key plant performance aspects including fuel handling, fuel blending, combustion, and post-combustion measures using air and fuel balancing, mill optimisation, and burner and OFA settings. For power and industrial plant operators seeking efficiency gains.
• Fuel Assessment Advanced fuel characterisation testing including high temperature volatile release, devolatilisation kinetics, char combustion kinetics, petrographic analysis, and ash/slagging/fouling characterisation. For operators evaluating new or variable fuels.
• Burner Management & Combustion Control Systems Systems for load control, air/fuel ratio control, sequence control, safety interlocks management, and remote monitoring through DCS, delivering incremental improvements without outages. For plant operators seeking control system upgrades.
• Remote Monitoring Service Remote monitoring capability for plants with suitable DCS interface, enabling data capture and analysis for operational performance improvements without outages. For power and industrial plant operators.

Quantifiable outcome

• NOx reduced by 47% at ZETES 2 Unit 3, Turkey
• +11 more outcomes

Named customers18 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

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

• Wood plccoreStrategic or Co-development PartnerWood plc served as the primary project contractor for the Aboño II coal-to-gas conversion project in Spain. RJM worked closely with Wood's Spanish team, combining RJM's combustion expertise with Wood's project management capabilities for this complex conversion.
• ICORSAcoreImplementation/ SI/ Consulting PartnerICORSA ( EPC contractor) selected RJM to design and manufacture new natural gas burner firing systems for Azucarera's three sugar processing plants in Spain. RJM's scope included CFD analysis, burner design, and multi-fuel capability including biogas and hydrogen-ready configurations.
• GE (General Electric)foundationalTechnology or IntegrationRJM's IMPULSE cleaning system is a sophisticated development of the pulse detonation propulsion technology pioneered by GE. This represents an inbound technology licensing/derivation relationship.
• PREWINminorGTM or Marketing PartnerPREWIN is a network of European operators of Energy from Waste plants. RJM is a regular attendee and presenter at PREWIN conferences, engaging with EfW operators across Europe.
• Steelworks (adjacent to Aboño)coreChannel Partner/ Reseller/ DistributorA steelworks adjacent to the Aboño II power station supplies Blast Furnace Gas (BFG) for co-firing at the converted plant, demonstrating industrial symbiosis and fuel diversification.
• Eren EnerjicoreStrategic or Co-development PartnerFollowing successful ZETES 2 Unit 3 project, RJM was awarded a second power plant upgrade project by Eren Enerji in Turkey, demonstrating ongoing strategic partnership for plant performance improvements.
• WSPminorImplementation/ SI/ Consulting PartnerWSP was the project management lead for the Uskmouth Conversion FEED project, with RJM providing technical capability in solid fuels, combustion and CFD modelling as part of the project team.

Scale indicators8 records

Recent moves10 records

Expansion highlights6 records

Broad incumbents

• ANDRITZ: ANDRITZ's Power Boiler/Pulp & Paper division supplies biomass and recovery boilers, fuel conversion engineering, and emissions systems; comparable to RJM on fuel-switching and biomass conversions for utility and EfW plants.
• Valmet: Valmet provides boiler island technologies, burner upgrades, and fuel-conversion services for biomass and recovery boilers — a large incumbent offering overlapping capabilities to RJM's biomass and EfW firing systems.
• Wood Group (Foster Wheeler heritage): Wood plc combines EPC/consulting with Foster Wheeler's power-plant expertise, including coal-to-gas/bio conversions and combustion engineering — confirmed RJM partner on the Aboño II conversion project and a deep-pocketed competitor on similar programs.
• Doosan Enerbility (formerly Doosan Babcock): Doosan Enerbility is a major boiler OEM and services provider globally, offering combustion upgrades, boiler modifications, and emissions retrofits for coal and biomass plants — a larger, broader rival to RJM's specialist burner retrofits.
• Babcock & Wilcox: Babcock & Wilcox is a long-established boiler OEM with combustion modification, emissions control, and plant services — competes with RJM on large retrofit projects and adds scale, balance sheet, and OEM-fired boiler franchises RJM lacks.
• IHI Corporation (Power Systems): IHI manufactures boilers and combustion equipment for thermal power plants and supplies combustion modification and emissions upgrades globally — a major Asian-headquartered incumbent serving similar utility customer sets as RJM.

Direct peers

• Riley Power: Riley Power is a boiler services specialist focused on combustion optimization, low-NOx burner upgrades, and boiler performance for utility power plants — a near-direct competitor in RJM's primary U.S. utility retrofit segment.
• Zeeco: Zeeco designs and manufactures combustion equipment including low-NOx burners, flares, and thermal oxidizers for the power, refining, and petrochemical sectors — directly overlapping RJM's ultra-low NOx burner portfolio for industrial and utility boilers.
• Hamon Group: Hamon delivers boiler cooling, air-quality control systems, and combustion/emissions retrofits for power and industrial plants — closely comparable to RJM's NOx reduction and flue gas recirculation offerings on fossil and waste-fired boilers.
• Babcock Power Environmental: Babcock Power's environmental division supplies combustion modification technologies, low-NOx burner upgrades, and flue gas conditioning to coal-fired and industrial plants, with the same primary-measure NOx reduction thesis as RJM.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/rjm-international
• Xx.com/rjmintl

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries3 records

Funding overview

Funding rounds

Investors

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 RJM International