What SEFAKO does

SEFAKO (legal name: Fabryka Kotłów SEFAKO S.A.) is one of Poland's largest manufacturers of industrial boilers and boiler components for the power engineering sector, founded in 1974 and headquartered in Sędziszów, Poland. The company designs and fabricates a broad portfolio of multi-fuel grate boilers, burner combustion boilers, waste-heat boilers, fluidized bed boilers, and complete waste-to-energy (WtE) boiler islands, supported by an in-house Design Office responsible for all proprietary engineering. Beyond complete boiler units, SEFAKO produces pressure components (membrane walls, economizers, superheaters, pressure vessels, steel structures), applies advanced protective coatings using Inconel alloys via MIG/MAG CMT/Puls welding, and supplies SNCR NOx reduction systems guaranteed below 200 mg/m³n. The company maintains six VKW automatic membrane wall welding machines with a combined capacity of 25 km of pipe membrane walls per month on two shifts.

SEFAKO's business model is project-based and predominantly export-driven, with approximately 85-90% of revenues generated from foreign contracts across more than 30 countries, and the largest single contract in company history (179.9 million PLN net for an OP-350 coal-fired steam boiler for the Puławy power block via Polimex Mostostal, signed December 2019) demonstrating the scale of individual project economics. The company sells directly to utilities, district heating operators, EPC contractors, industrial enterprises, and municipalities through an enterprise field sales motion, complemented by participation in industry trade fairs and conferences (ENEX, Targi Katowice, Forum Ciepłowników Polskich, ICBT). Beyond new-build manufacturing, SEFAKO generates recurring revenue through boiler servicing, retrofitting, modernization (delivering up to 30% efficiency improvement on grate retrofits), NDT/DT diagnostics, and turn-key boiler island delivery through its POWERTHERM sub-brand. Its two wholly-owned subsidiaries — Centralne Biuro Konstrukcji Kotłów (Tarnowskie Góry) and SPEC (Sędziszów) — extend the group's design and energy services footprint, and the broader group employs over 1,000 people.

Ownership is concentrated under Towarzystwo Finansowe Silesia Sp. z o.o. (TFS), a state-supervised financial investor under the Polish Minister of Energy, which acquired SEFAKO in March 2018 from Mars Fundusz Inwestycyjny Zamknięty. The company maintains a continuous R&D pipeline through participation in the M-ERA.NET international consortium on innovative Ni-Cr-Re coatings (with ITME, IPPT PAN, Warsaw University of Technology, and Slovak Academy of Sciences), leadership of the NCBiR Program Bloki 200+ consortium on 200 MWe class steam block modernization, and a joint offering with Instytut Chemicznej Przeróbki Węgla (ICHPW) on small-scale RDF energy recovery installations. SEFAKO is a public joint-stock company (S.A.) registered in Poland with KRS 0000029367, capitalized at 12,208,270 PLN, and in 2026 announced its STRATEGIA SEFAKO 2030 alongside a 2026-2030 development strategy formalizing its pivot toward energy transition products (WtE, RDF, Power-to-Heat installations) while continuing its core coal/biomass boiler manufacturing base.

Name

SEFAKO

Legal name

Fabryka Kotłów SEFAKO S.A.

Website

https://sefako.pl

Company type

Public

Founded year

1974

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

SEFAKO is a Polish industrial boiler manufacturer (founded 1974, Sędziszów) designing and fabricating multi-fuel, waste-heat, fluidized bed, and waste-to-energy boilers plus pressure components, serving utilities, district heating operators, EPC contractors, and municipalities primarily through export contracts across 30+ countries.

Ownership category

akta.pro rank

Product category

Industrial Boiler Manufacturing (Power Engineering Equipment)

NAICS

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

SIC

Fabricated Plate Work (Boiler Shops) (3443), Heating Equipment, Except Electric & Warm Air Furnaces (3433)

akta.pro primary industry

Boilers, Furnaces & Process Heating Equipment (IMAHAKAD)

akta.pro secondary industries

Boiler & Hydronic Heating Repair & Service (HSAOAHAG), Boiler & Hydronic Heating System Installation (HSAOAGAF), Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC), Chillers, Boilers & Central Plant Operations (BPABACAG)

Keywords

• Industrial boiler manufacturing
• Power engineering equipment
• Waste-to-energy boilers
• District heating systems
• Boiler retrofitting services

Headquarters

HQ city

Sedziszow

HQ country

Poland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Boiler and Boiler Component Manufacturing: Design, fabrication, and supply of industrial boilers (multi-fuel grate, burner combustion, waste-heat, fluidized bed, WtE) and pressure components (membrane walls, economizers, superheaters, steam boilers, pressure vessels, steel structures). Revenue is project-based, with large turnkey contracts contributing the majority of revenues. Approximately 85-90% of revenues come from foreign contracts.
2. Boiler Servicing, Retrofitting & Modernization: Overhaul, retrofit, and modernization services for legacy WR, WLM, and OR type coal-fired boilers including pressure-side component replacement, grate upgrades, combustion control system deployment. Extended lifecycle services including health diagnostics, non-destructive testing (NDT), and destructive testing (DT) services.
3. Membrane Wall Manufacturing and Surfacing: Production and surface welding of membrane wall panels for internal use and external customers. Output of 25 km/month of pipe membrane walls. Includes protective coating deposition on membrane walls and piping using advanced Ni-Cr alloys.
4. SNCR NOx Reduction Systems (Turn-key): End-to-end SNCR turn-key delivery including urea solution management, distribution, injection nozzles, lances, control systems, and commissioning for NOx reduction across boiler load ranges.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Fabryka Kotłów SEFAKO S.A. designs, manufactures, and supplies complete industrial boilers and boiler pressure components for the power engineering, district heating, and industrial sectors. Its portfolio covers multi-fuel grate boilers, burner combustion boilers, waste-heat boilers, fluidized bed boilers, and full waste-to-energy (WtE) boiler islands, complemented by proprietary SNCR NOx reduction systems, Ni-Cr protective coatings, membrane wall manufacturing, turn-key boiler plant delivery, and lifecycle services including retrofitting, modernization, and NDT/DT diagnostics. SEFAKO's engineering, manufacturing, and assembly are handled in-house through its Biuro Projektowe and production facilities in Sędziszów, Poland.

Product overview

SEFAKO operates as a manufacturer of industrial boilers and boiler components, offering a comprehensive portfolio organized around three core product categories: multi-fuel grate boilers (OR, OS, WR, KBs, EBs, KRm, ERm, WtE, thermal oil), burner combustion boilers (OP, WP, EOG, KOG, WG, WO, WGO, OO, OG, OGO), and waste heat/recovery boilers (EU, OU, XU), complemented by turn-key boiler island solutions. The offering extends beyond boilers to include environmental protection systems (SNCR NOx reduction), protective coatings (Ni-Cr-Mo surfacing), and membrane walls. SEFAKO provides supporting services through its in-house Engineering Design Office and offers specialized services including boiler diagnostics, controls and instrumentation (AKPiA) using GE/Siemens/Horner systems, and boiler servicing and retrofitting. The POWERTHERM sub-brand focuses on heat and power energy solutions.

Differentiator

Problem solved

Functional benefit

Products and services

• Boiler Manufacturing and Pressure Components (Production of boilers and boiler components) Design, fabrication, and delivery of complete boilers and pressure components for power, industrial, and small-scale energy applications. SEFAKO produces its own boiler designs through an in-house Engineering Design Office, offering units fired by hard coal, liquid fuel, gas, and biomass. Pressure components manufactured in-house include membrane wall panels (panele ścian szczelnych), steam generators (parowniki), superheaters (przegrzewacze), economizers (ekonomizery), pressure vessels (zbiorniki ciśnieniowe), and steel structures and ducts (konstrukcje stalowe i kanały).
• KRm Series (Flue and Smoke Tube Water Boilers) Three-pass water boilers, advanced yet simple in design, proven and easy to operate units with first pass smoke tubes. Used in industrial and small-scale energy applications.
• ERm Series (Flue and Smoke Tube Steam Boilers) Three-pass steam boilers, advanced yet simple in design, proven and easy to operate units with first pass smoke tubes for industrial steam generation.
• OP and WP Series (Water Tube Power Boilers) Most widespread water-tube boiler design in Polish and foreign commercial and industrial power engineering sectors, including the OP-350 pulverized coal-fired steam boiler for large-scale power blocks.
• WR Series (Grate-Type Water Boilers) Extensive product line of grate-type water boilers designed for solid-fuel combustion with automatic stokers, widely used for industrial heat supply and retrofitting projects.
• OR and OS Series (Grate-Based Steam Boilers) Grate-based steam boilers for solid-fuel combustion with automatic stokers; OR-type boilers are based on coal-derived fuels and supported by retrofit, modernization, and overhaul services.
• KBs Series (Biomass Water Boilers) and EBs Series (Biomass Steam Boilers) KBs: water boilers heating water for processing and heating with biomass (pellet or wood chip) as primary fuel. EBs: steam boilers generating saturated or superheated steam from biomass in pellets or wood chips.
• EOG, KOG, WG, WO, WGO Series (Oil and Gas Fired Water and Flue Boilers) EOG: oil and gas fired flue and smoke tube boilers. KOG: oil and gas fired water boilers. WG, WO, WGO: high-efficiency state-of-the-art water boilers based on gas or oil fuels, available as universal units.
• OU, XU, EU Series (Waste Heat Boilers) OU and XU: steam boilers designed for process heat and heating applications, utilizing waste heat as fuel. EU: single-pass smoke tube waste heat boiler generating steam for processing and heating, with economizer unit.
• WtE Series (Waste-to-Energy Boiler Plants) Waste-to-energy boiler plants for thermal processing of municipal waste, including boiler house with fuel feed systems, for utilities and municipalities requiring combustible fraction disposal and district heating integration.
• ITPOK (Turn-Key Projects and Boiler Islands) Complete plant solutions for heating plants, heat and power stations, and industrial projects including boiler islands with furnace systems, treatment plants, piping, controls, and civil engineering, delivered as single-source turnkey contracts.
• SNCR NOx Reduction System Selective Non-Catalytic Reduction system for treatment of NOx emissions in grate-fired, pulverized fuel, and fluidized bed boilers fed with hard coal, biomass, or municipal waste. Guarantees NOx levels below 200 mg/m³n and meets future BAT requirements.
• Protective Coatings (Ni-Cr-Mo Surfacing) Protective coating deposition services using Inconel 625, Inconel 686, 309, 310, and G4 alloys for high-temperature corrosion and erosion protection of boiler surfaces in waste-to-energy and conventional boiler plants.
• Membrane Walls (Membrane Wall Manufacturing) Automatic welding of membrane wall panels up to 800mm or 1,600mm wide and 20m maximum length, using VKW automatic welding machines, for internal use and external customers.
• RDF (Refuse Derived Fuel) Energy Recovery Installations Small-scale energy recovery installations from RDF (under 50,000 Mg/year), developed jointly with Instytut Chemicznej Przeróbki Węgla, targeting municipalities for replacing obsolete coal-fired boilers with pro-ecological technology aligned with the European Green Deal.
• Boiler Health Assessment and Diagnostics Comprehensive services for health assessment and diagnostics of water boilers, steam boilers, boiler plant equipment, pipelines, and pressure vessels, including non-destructive testing (NDT) and destructive testing (DT).
• Boiler Controls and Instrumentation (AKPiA) End-to-end control systems (Automatyka, Kontrola, Pomiar) for industrial boilers using GE, Horner, and Siemens controllers and HMI panels, Wonderware SCADA systems, on-site installation, commissioning, and burner servicing for Weishaupt, Saacke, and Riello burners.
• Boiler Servicing, Retrofitting and Modernization Retrofit and overhaul options for legacy WR, WLM, and OR type coal-fired boilers including pressure-side component replacement, grate retrofits (up to 30% efficiency improvement), primary forced air systems, and automation upgrades.
• POWERTHERM Energy Solutions Sub-brand Energy solutions brand under SEFAKO offering heat and power solutions as a separate business line, including heat storage installations and power-to-heat (P2H) installations.
• Thermal Oil-Fired Boilers Boilers using thermal oil as the heating medium as an alternative to traditional water-based systems, for industrial process heat applications.

Quantifiable outcome

• Up to 30% efficiency improvement achievable with grate and boiler retrofits
• +2 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

Feature6 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Zespół Szkół Ponadgimnazjalnych w SędziszowiecoreStrategic or Co-development PartnerVocational school partnership established January 2017 for the project 'Specializacja zawodowa dla branży horyzontalnej – Zrównoważony Rozwój Energetyczny.' 69 students undertake 400-hour internships at SEFAKO; 15 students enrolled in a dedicated patron-class starting September 2017. The partnership aims to train qualified workers for SEFAKO employment.
• Politechnika ŚwiętokrzyskaminorStrategic or Co-development PartnerAcademic partner in the vocational training project (2017-2018) and in youth investment initiatives. Contributes to educational and research collaboration supporting the regional energy industry.
• Instytut Chemicznej Przeróbki Węgla (ICHPW), ZabrzacoreStrategic or Co-development PartnerJointly developed market-ready RDF (Refuse Derived Fuel) energy recovery installation offerings for municipalities (<50,000 Mg/year). SEFAKO provides boiler and island design; ICHPW contributes chemical processing of waste expertise. Aligned with European Green Deal pro-ecological technology requirements.
• Narodowe Centrum Badań i Rozwoju (NCBR)coreStrategic or Co-development PartnerSEFAKO leads a consortium selected for Phase II of the 'Program Bloki 200+' project organized by NCBR (November 2018). The project aims to develop innovative technologies for modernizing 200 MWe class steam blocks. Consortium includes Politechnika Warszawska, EthosEnergy Sp. z o.o., Zakład Automatyki Przemysłowej Intec Sp.z o.o., and Centralne Biuro Konstrukcji Kotłów S.A. Duration: 2018-2021.
• Instytut Technologii Materiałów Elektronicznych (ITME)coreStrategic or Co-development PartnerLeader of the M-ERA.NET 2016 international R&D project on innovative Ni-Cr-Re coatings for high-temperature corrosion and erosion resistance. SEFAKO is a consortium member alongside IPPT PAN, Warsaw University of Technology (PW), and Institute of Materials Research, Slovak Academy of Sciences.
• Świętokrzyskie Centrum Innowacji i Transferu Technologii Sp. z o.o.minorStrategic or Co-development PartnerProject leader for the EU-funded vocational training project 'Zawodowcy dla przemysłu 4.0' (2020-2022), co-financed by the European Social Fund under the Regional Operational Programme of the Świętokrzyskie Voivodeship 2014-2020.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Rafako: Rafako is a major Polish EPC contractor and boiler manufacturer (OP, fluidized bed, biomass units) competing head-to-head with SEFAKO for utility-scale steam boiler tenders in Poland and export markets.
• John Cockerill Group: John Cockerill designs and supplies industrial heat-exchange and combustion equipment, including biomass and WtE boiler islands, directly comparable to SEFAKO's multi-fuel and waste-to-energy offerings in Europe.

Broad incumbents

• Andritz AG: Andritz is a large global supplier of power boiler islands, flue gas cleaning and WtE plants directly comparable to SEFAKO's boiler and SNCR offerings, but at much larger scale and broader portfolio.
• Babcock & Wilcox: B&W is a US-based boiler OEM and services provider for utility and industrial steam generation, including biomass and WtE units, competing with SEFAKO globally on pulverized fuel and grate boiler technology.
• Mitsubishi Power: Mitsubishi Power supplies large-scale steam power boilers and turbine islands globally, relevant to SEFAKO's high-end utility and OP-class pulverized-coal boiler competitions.
• Doosan Enerbility: Doosan Enerbility is a Korean EPC and boiler manufacturer offering utility-scale steam generators and biomass/waste-fired plants comparable to SEFAKO's WtE and grate boiler portfolio.
• Thermax Limited: Thermax is an Indian EPC and boiler manufacturer with coal/biomass-fired and waste-heat recovery boilers plus emission control systems, structurally similar to SEFAKO's mid-range industrial and utility boiler range.
• Sumitomo Heavy Industries: Sumitomo Heavy Industries supplies industrial boilers and energy-from-waste plants, including grate-fired and fluidized-bed units comparable to SEFAKO's WtE and multi-fuel grate product lines.
• IHI Corporation: IHI manufactures large utility boilers and WtE plants globally, with comparable fluidized-bed and pulverized-fuel technology to SEFAKO's OP and stationary fluidized bed offerings.

Others

• Clyde Bergemann Power Group: Clyde Bergemann supplies boiler island auxiliary equipment and emissions/SNCR systems adjacent to SEFAKO's core product lines, reflecting competitive overlap in environmental retrofit services for power boilers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sefako

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Subsidiaries2 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 SEFAKO