What Steinmüller Engineering Gmbh does

Steinmüller Engineering GmbH is a Germany-based engineering and consulting firm, headquartered in Gummersbach, specializing in thermal process engineering for the global power generation and process industries. Founded in 2003 by former engineers and managers of L. & C. Steinmüller (a steam boiler house dating back to 1874), the company became a wholly owned subsidiary of Japan's IHI Corporation in June 2014 and now operates with more than 150 qualified experts representing over 20 nationalities. Its portfolio spans seven business areas: Combustion & Incineration (including Circulating Fluidized Bed Combustion boilers up to 250 MWel and sewage sludge incineration), Air Pollution Control (dry and wet flue gas cleaning, SCR/SNCR), Heat Transfer (steam generators, waste heat recovery, thermal storage, chemical plant components), Engineering & Consulting (owner's engineering, plant monitoring, lifetime extension), Carbon Solutions (hydrogen, ammonia, biomass, carbon capture, oxyfuel), After Sales Services (spare parts and maintenance), and Digital Services (3D Scan, Digital Twin, Mercury Monitoring, the DimBo thermodynamics tool, and ProSim Plus HNO3 simulation).

Name

Steinmüller Engineering Gmbh

Legal name

Steinmüller Engineering GmbH

Website

https://steinmueller.com

Company type

Private

Founded year

2003

Operating status

Operating

Headcount range

101–250 employees

Short description

Steinmüller Engineering GmbH is a Gummersbach-based thermal process engineering firm serving global power and process industries with combustion, air pollution control, heat transfer, and decarbonization solutions, operating as a wholly owned subsidiary of Japan's IHI Corporation since 2014.

Ownership category

akta.pro rank

Product category

Power Plant Process Engineering and Flue Gas Cleaning

NAICS

Power Boiler and Heat Exchanger Manufacturing (33241), Engine, Turbine, and Power Transmission Equipment Manufacturing (33361)

SIC

Engines & Turbines (3510), Industrial Process Furnaces & Ovens (3567)

akta.pro primary industry

Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC)

Keywords

• Power plant engineering
• Flue gas cleaning
• Steam generator design
• Sewage sludge incineration
• EPC contracting

Headquarters

HQ city

Gummersbach

HQ country

Germany

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Services: Engineering and consulting services for thermal power plants, waste/sludge incineration plants, refineries, industrial plants, and solar power plants. Includes owner's engineering services, concept development, energy efficiency optimization, plant monitoring, and lifetime extension studies.
2. EPC Contracting: Complete project execution from engineering and procurement through construction and commissioning for combustion systems, steam generators, and flue gas cleaning systems.
3. Proprietary Equipment Supply: Supply of key components including circulating fluidized bed reactors, electrostatic precipitators, fabric filters, wet flue gas cleaning systems, SCR and SNCR systems, and chemical plant components.
4. After-Sales Services: Spare parts supply, site services, maintenance support, and engineering services for existing plant operations.
5. Digital Services: Digital services including 3D scanning, digital twins, process simulation (ProSim Plus HNO3), mercury monitoring, and DimBo thermodynamics calculations.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Steinmüller Engineering is an EPC engineering and consulting firm that designs, engineers, procures, and commissions combustion systems, steam generators, and air pollution control/heat recovery equipment for power plants, process industries, and waste-to-energy facilities. It sells proprietary plant components (CFBC boilers, FGD systems, SCR/SNCR, heat exchangers, thermal storage) and supports customers with after-sales services and digital tools such as DimBo, Digital Twin, and mercury monitoring.

Product overview

Steinmüller Engineering GmbH is an engineering and consulting company offering a comprehensive portfolio of process technologies for the energy and environmental engineering sectors. The company operates seven interconnected business areas: Combustion & Incineration (featuring CFBC boiler technology and sewage sludge incineration), Air Pollution Control (dry/wet flue gas cleaning, SCR/SNCR systems), Heat Transfer (steam generators, waste heat recovery, thermal storage, chemical plant components), Engineering & Consulting, Carbon Solutions (green fuels, carbon capture, waste heat recovery), After Sales Services, and Digital Services (3D Scan, Digital Twin, Mercury Monitoring, DimBo). These offerings are designed to work together, enabling seamless project execution from planning through commissioning and maintenance, with the Digital Services (DimBo, 3D Scan, Digital Twin) supporting and optimizing the core thermal and environmental engineering solutions across all business areas.

Differentiator

Problem solved

Functional benefit

Products and services

• Combustion & Incineration Systems Customized combustion and incineration systems for biomass, low-carbon, and fossil fuels, including Circulating Fluidized Bed Combustion (CFBC) technology with water/steam circuit, pressure parts, fuel handling, and ash removal, plus fluidized-bed sewage sludge incineration (capacity 1.8-5.7 t/h dry matter, scale-up to 10 t/h). Targeted at power plant operators, process industry operators, and municipal wastewater utilities.
• Air Pollution Control Systems Dry and wet flue gas cleaning systems including circulating fluidized bed reactors, electrostatic precipitators, fabric filters, SCR and SNCR systems, with proprietary Wonderbed and tray technologies and high-alloy lances for SO2, NOx, particulate, aerosol, and mercury reduction. Targeted at power generators, waste incinerators, and process plant operators requiring BREF/BAT compliance.
• Heat Transfer & Steam Generation Engineering Steam generators (including Once-Through Steam Generators and molten-salt steam generators), waste heat recovery exchangers, thermal storage systems (salt/oil, salt/water-steam, gas/water-steam configurations), and chemical-plant components (heat recovery steam generators and process gas coolers). The molten-salt steam generator has a 7.5 MWth reference in modular thermal storage in Hungary. Targeted at power plants, process industry (chemical, steel, cement, glass), and energy storage projects.
• Engineering & Consulting Owner's engineering services, concept development, energy efficiency optimization, plant monitoring, life-time extension studies, and root cause analysis for thermal power plants and process facilities. Targeted at power plant operators and industrial asset owners seeking independent (OEM-neutral) engineering advice.
• Carbon Solutions Decarbonization engineering offering covering green-fuel combustion (hydrogen, ammonia, biomass), power-to-heat, thermal energy storage, post-combustion/oxyfuel carbon capture, and waste heat recovery. Targeted at utilities and process industries needing to meet decarbonization mandates and lower CO2 intensity.
• After Sales Services Spare parts supply, site services, maintenance support, and engineering services for existing Steinmüller and other-vendor plants. Targeted at operators of installed reference plants worldwide, including continued service relationships with customers such as Eskom.
• Digital Services (Digital Twin, ProSim Plus HNO3, Mercury Monitoring, 3D Scan, EBSILON, ANSYS Fluent) Suite of recurring digital services: 3D scanning of plants for as-built documentation; Digital Twin of plant processes for offline/remote/online KPI-based optimization; species-specific mercury online monitoring; process simulation (ProSim Plus HNO3, ANSYS Fluent, EBSILON); plus the DimBo thermodynamics calculation program delivered as a web application and DLL for IT integration. Targeted at power plant and process industry operators seeking continuous optimization and emissions compliance.
• CFBC Boiler Design (Circulating Fluidized Bed Combustion) Circulating Fluidized Bed Combustion boiler design capability supporting units up to 250 MWel, including combustion system, water/steam circuit, pressure parts, fuel handling, and ash removal. Targeted at power plant operators seeking fuel-flexible combustion (biomass, waste, low-grade coal).
• Sewage Sludge Incineration Plants Fluidized-bed incineration plants for sewage sludge with single-line capacity 1.8-5.7 t/h dry matter (scale-up up to 10 t/h), including sludge reception/storage/drying, waste heat boiler, water/steam cycle, and flue gas cleaning. Targeted at municipal wastewater utilities and waste-to-energy developers; reference base of 29 sewage sludge incineration plants.
• EPC Project Contracting Turnkey Engineering, Procurement, and Construction (EPC) execution for combustion systems, steam generators, and flue gas cleaning systems, delivered from concept design through commissioning and into after-sales support. Targeted at utilities, IPPs, municipal clients, and process-industry operators undertaking greenfield or major retrofit projects.

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

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 and minor.

• Envirotherm GmbHcoreStrategic or Co-development Partner · 1 January 2021Acquisition of significant parts of Envirotherm GmbH operations in 2021 expanded portfolio to serve the sludge-to-energy market. Portfolio includes sludge reception, storage and drying, fluidized bed incinerator, waste heat boiler, water/steam cycle, flue gas cleaning, and electrical and I&C systems.
• GRAF EnviroPro GmbH (GEo)coreStrategic or Co-development Partner · 1 January 2019Acquisition of GRAF EnviroPro GmbH (GEo) in 2019 added expertise and references in the flue gas cleaning sector, expanding the complete range of advanced technologies offered.
• TH Köln (Technology Arts Sciences TH Köln)minorStrategic or Co-development PartnerCooperation with TH Köln including student programs, internship semesters, and thesis projects. TH Köln campus in Gummersbach with over 5,000 students provides industry-science-research collaboration.
• TU Dresden (Dresden University of Technology)minorStrategic or Co-development PartnerUniversity partnership for student support, research collaboration, and practice-oriented thesis projects.
• DHBW Mannheim (Baden Württemberg Cooperative State University)minorStrategic or Co-development PartnerDual education partnership offering combined theoretical and practical training for students.
• Hokkaido UniversityminorStrategic or Co-development PartnerInternational university partnership with Japanese institution for research and student exchange.
• DLR (German Aerospace Center)minorStrategic or Co-development PartnerCollaboration on solar thermal pilot installation in Évora, Portugal, where Steinmüller Engineering performed process design and constructed/supplied the steam generator.

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Valmet Oyj: Finnish process technology provider serving power, pulp, and energy customers with boiler islands, air pollution control, and digital performance services. Overlaps Steinmüller in CFBC/boilers, flue gas cleaning, and aftermarket digital services for thermal operators.
• Andritz AG: Austrian engineering group with a Power & Paper division that designs and supplies steam generators, flue gas cleaning, and biomass/coal-fired boiler islands. Closely comparable to Steinmüller in combustion, heat transfer, and emissions-control EPC across the same utility and process-industry customers.
• Sumitomo Heavy Industries: Japanese industrial machinery group with power plant and environmental equipment divisions producing boilers, steam generators, and waste-to-energy systems. Comparable customer base in chemicals, utilities, and waste incineration across Europe and Asia.
• Clyde Bergemann Power Group: Specialist in heat transfer, sootblowers, and material handling for utility and industrial power plants. Comparable niche focus on thermal power plant components and aftermarket services.
• Babcock & Wilcox: US-headquartered specialist in steam generation, air pollution control, and waste-to-energy with a strong heritage in utility and industrial boilers. Closely comparable product portfolio (CFBC, FGD, ESP) and customer segments to Steinmüller Engineering.

Emerging players

• FLSmidth: Danish engineering firm with cement and mineral processing businesses that overlap on thermal process equipment and emissions control. Partial comparability via calcination, heat recovery, and gas-cleaning technology.
• GEA Group: German process engineering major serving food, dairy, and chemical end markets. Partial overlap with Steinmüller's heat transfer and process gas cooling capabilities for chemical customers (e.g., nitric acid, ammonia plants).

Broad incumbents

• MAN Energy Solutions: German turbomachinery OEM with a large power plant and decarbonization portfolio (steam turbines, gas turbines, heat recovery steam generators, carbon capture). Competitor on the turbine/steam-generator side of power plant EPC.
• Doosan Enerbility: Korean OEM and EPC contractor for thermal power plants, boilers, steam turbines, and air-cooled condensers. Overlaps with Steinmüller on large-scale coal/biomass EPC projects and emissions control retrofits globally.
• Mitsubishi Heavy Industries (Mitsubishi Power): Japanese industrial conglomerate with a major power systems division covering steam turbines, boilers, and flue gas cleaning. Sibling company to IHI and a direct large-scale competitor in thermal EPC; also competing on hydrogen/ammonia-ready turbines and carbon capture.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat6 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInde.linkedin.com/company/steinmuellerengineeringgmbh
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Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 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 Steinmüller Engineering Gmbh