Schwelm Anlagentechnik

Name

Schwelm Anlagentechnik

Legal name

Schwelm Anlagentechnik GmbH

Website

https://schwelm-at.de

Company type

Private

Founded year

1886

Operating status

Operating

Headcount range

51–100 employees

Ownership category

akta.pro rank

Product category

Industrial Plant Engineering

NAICS

Oil and Gas Field Machinery and Equipment Manufacturing (333132), Mining and Oil and Gas Field Machinery Manufacturing (33313), Pump and Compressor Manufacturing (33391)

SIC

Oil & Gas Field Machinery & Equipment (3533), General Industrial Machinery & Equipment (3560)

akta.pro primary industry

RNG Upgrading, Purification & Conditioning (Membranes, PSA, Amine, Cryogenic) (EUAAAEAD)

akta.pro secondary industries

Biogas Upgrading to RNG & Injection/Fueling (Gas Cleanup, Compression) (EUAIAEAF), Industrial Fuel Switching & Conversion Services (Oil/Coal-to-Gas, Burner/Boiler Retrofits) (EUALALAJ), Gas Plant Operations, Maintenance & Turnarounds (O&M Services) (EUAAABAK)

Keywords

• Biogas upgrading plants
• CNG LNG filling stations
• Hydrogen refueling stations
• Industrial tank farms
• Biomethane injection systems

Headquarters

HQ city

Schwelm

HQ country

Germany

HQ region

Europe

Offices2 records

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. Industrial Plant Engineering and Construction: Custom engineering, construction, and turnkey delivery of industrial plants for gases (biogas upgrading, biomethane injection, CNG/LNG/H2 fueling stations) and solid/liquid substances (tank farms, transshipment stations, metering and blending, CO2 liquefaction, LPG systems). Projects range from multi-million euro orders for large corporations to smaller orders for SMEs. Revenue recognized upon project completion (project-based, one-time).
2. Maintenance, Repair, and Service Contracts: Comprehensive after-sale service including maintenance, inspection, repairs, modernization, and recurring testing (BetrSichV). Service contracts are offered with 24/7 emergency response outside business hours. Remote error analysis via TeamViewer also provided.
3. Training and Certification Services: Qualified personnel training for natural gas refueling station operation (Sachkundeschulung). Two-day intensive seminars resulting in certification for 'Befähigte Personen' per BetrSichV. Offered annually with multilingual support.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Schwelm Anlagentechnik GmbH manufactures and supplies turnkey industrial plants for the gas and chemical/process industries. Core offerings include biogas upgrading plants using physical absorption scrubbing, biomethane injection systems, CNG/LNG and hydrogen refueling stations, chemical tank farms, transshipment and loading stations, metering/blending systems, CO2 liquefaction plants, and liquefied gas (LPG) systems, complemented by lifecycle maintenance, inspection, training, and 24/7 service.

Product overview

Schwelm Anlagentechnik GmbH (SAT) is an industrial plant engineering company offering turnkey systems primarily for gas handling and chemical/process industries. The product portfolio consists of three main business divisions: (1) Gases - covering biogas upgrading (BGAA) using physical absorption technology, biomethane injection (BGEA), biogas drying via PSA, CNG/LNG natural gas fueling stations (the company's German market leader position), hydrogen fueling stations with dual 350/700 bar pressure, pressure booster systems, and gas mixing plants; (2) Solid/Liquid Substances - encompassing tank farms for chemical storage, transshipment/loading stations, metering and blending/production systems, CO2 liquefaction, and liquefied gas systems; and (3) Services - including full maintenance contracts, documentation services, recurring inspections, and Sachkunde training programs. SAT provides complete project execution from planning through engineering, construction, commissioning, and ongoing service.

Differentiator

Problem solved

Functional benefit

Products and services

• Biogas Conditioning Plant (BGAA) Biogas upgrading systems using physical absorption/polyglycol scrubbing technology. Plant sizes range from 150-1,400 Nm³/h biomethane capacity, achieving up to 98 vol.% methane purity with energy consumption below 0.2 kWh/Nm³ raw gas and methane losses under 1% (under 0.2% for small installations).
• Biomethane Injection Plant (BGEA/BMEA) Biomethane injection systems for feeding upgraded biogas into natural gas grids. Includes gas pressure regulation, flow metering, LPG/air/nitrogen addition for Wobbe index adjustment, odorant injection, and continuous gas analysis.
• Biogas Drying Systems (PSA) Pressure swing adsorption (PSA) drying units for removing moisture from biomethane. Fully automatic systems with self-regenerating molecular sieve desiccant; only water is discharged to sanitary sewer.
• Natural Gas Fueling Stations (CNG/LNG) CNG and LNG refueling stations for passenger cars, buses, and commercial vehicles. Includes compressor stations (15-3,000 m³/h), cascade storage systems at 300 bar, and fully automatic dispensers with 1-4 hoses per NGV1/NGV2 standards.
• Hydrogen Fueling Stations (H2) Hydrogen refueling stations with dual pressure levels (350/700 bar). Features hydraulic compressor systems generating up to 950 bar peak pressure, multi-bank storage systems, and combined H2 high-performance dispensers with up to 480 kg/day throughput.
• Pressure Booster Systems Gas compressor stations for boosting gas pressures. Compact systems in steel containers achieving up to 350 bar (optionally 550 bar+). Compressor output from 0-500 m³/h with multi-bank buffer storage and fine pressure regulation.
• Gas Mixing Plants Systems for molecular-precise gas quality adjustment for test benches, burners, heating systems, and furnaces. Includes gas scrubbing, membrane technology, drying, gas/liquid dosing, and nitrogen/oxygen generation for Wobbe index adjustment.
• Tank Farms Storage facilities for flammable/non-flammable gases and water-hazardous substances. Includes planning, delivery, assembly, and turnkey handover with cathodic corrosion prevention and safety equipment; capacities from few cubic meters to large tank farms.
• Transshipment Stations Loading/unloading systems for railway tank cars, tank trucks, containers, and ships. Handles acids, caustics, petroleum products, liquefied gases, solvents; up to DN150, temperatures -40°C to +250°C, pressures to 40 bar, with trace heating and piggable versions.
• Metering and Mixing Systems Production technology systems for storage, dosing, and mixing of solid and liquid materials. Includes gravimetric/volumetric dosing from grams to tank truck scales, recipe-controlled automation, mixing/homogenizing, agitator containers, dissolver plants, and visualization systems.
• CO2 Liquefaction Systems CO2 liquefaction systems for carbon capture utilization. Energy-efficient systems for industrial processes, beverage carbonization, greenhouse agriculture, refrigeration, textile dyeing, and semiconductor manufacturing. Capacities from 50 kg/day to 1,500 kg/h.
• Liquefied Gas (LPG) Systems LPG storage and distribution systems for private, commercial, public operation and vehicle refueling. Pressure vessels up to 450 m³ for above/underground storage, including withdrawal stations, vaporization/regulation stations, and transfer facilities.
• Full Service (Rundumservice) Comprehensive after-sale service including documentation (circuit diagrams, risk assessments, maintenance plans, explosion protection), inspection/maintenance, 24/7 emergency repair, recurring inspection (BetrSichV), and modernization/extension services.
• Training Programs (Schulungen) Sachkunde (competence) training for natural gas fueling station personnel per BetrSichV requirements. Annual updated two-day intensive seminars with certification upon completion; multi-language options available.

Quantifiable outcome

• Biogas upgrading plants produce approximately 20,000 m³ biomethane per hour combined for natural gas grid feed-in
• +5 more outcomes

Named customers10 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

Integration1 record

Feature5 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• REDINET Burgenland GmbHcoreStrategic or Co-development Partner · 8 May 2025REDINET Burgenland awarded Schwelm Anlagentechnik a contract to build a biomethane injection plant (BGEA) at the Elsteraue site near Zeitz. The plant will have an injection capacity of 2,800 Nm³/h biomethane — one of the largest injection projects ever realized. Schwelm provides the entire plant including electrical, communications, and building services engineering. Commissioning planned for Q4 2026.
• CEC Haren GmbH & Co. KGcoreStrategic or Co-development Partner · 12 September 2022Schwelm Anlagentechnik supplies a hydrogen filling station within the 'Green Gas Station Park Emsland' for the H2Agrar demonstration project. The station offers simultaneous 350/700 bar refueling via a novel combined H2 dispenser. Project scope includes complete system: planning, compressor unit, storage, electrical engineering, control, and dispenser. Green hydrogen is generated by two 1 MW electrolysers from H-TEC SYSTEMS powered by a 16-turbine wind farm.
• Agrowea GmbH & Co. KGminorStrategic or Co-development PartnerAgrowea is the project partner for the H2Agrar model project in Emsland, operating hydrogen refueling infrastructure supplied by Schwelm Anlagentechnik and served by CEC Haren.
• Bioenergie Gordemitz GmbH (subsidiary of Leipziger Verbundnetz Gas AG / VNG)coreStrategic or Co-development PartnerSchwelm completed a biogas upgrading plant for Bioenergie Gordemitz (VNG subsidiary) at the gates of Leipzig, processing ~1,400 m³/h raw biogas into feed-in biomethane within a tight 40-week schedule. VNG is a major German gas utility.
• revis bioenergy GmbHcoreStrategic or Co-development PartnerSchwelm successfully delivered and commissioned a biogas upgrading plant (BGAA) at the Gommern site for revis bioenergy GmbH, feeding 800 m³/h biomethane into Avacon's PN16 gas network. A downstream compressor installation was included in the delivery.
• RheinEnergie AGcoreStrategic or Co-development PartnerSchwelm was commissioned by RheinEnergie AG for biomethane feed installation at Cologne-Niehl. Scope includes foundation work, building technology, compressor systems, measuring technology, and LPG tank storage. Plant capable of feeding up to 600 m³/h conditioned biomethane into the PN16 gas network from mid-2019.
• J.A. Becker & Söhne GmbH & Co.coreTechnology or IntegrationLong-term close partnership with J.A. Becker & Söhne (based in Neckarsulm), a compressor manufacturer. Their compressors form the 'heart' (Verdichter) of Schwelm's CNG fueling station systems, representing a key element of the overall CNG station concept.
• SSB Stuttgarter Straßenbahnen AGminorStrategic or Co-development PartnerFirst large CNG filling station delivered to SSB Stuttgart for Daimler hybrid fuel cell buses. Historical reference establishing Schwelm's entry into alternative fuel infrastructure.
• h2-netzwerk-ruhr e.V.minorGTM or Marketing PartnerSchwelm Anlagentechnik became the 60th member of h2-netzwerk-ruhr e.V. in November (year not specified; news item from 2021). The association connects hydrogen stakeholders in the Ruhr region of North Rhine-Westphalia.
• ERDGAS EFFIZIENT (and other industry associations)minorGTM or Marketing PartnerCompany is a member of multiple industry associations: ERDGAS EFFIZIENT, regeneratives Methanol, Figawa, DVGW, biogaspartner.de, Fachverband Biogas e.V., DECHEMA. These memberships support market positioning and regulatory engagement in the energy sector.

Scale indicators7 records

Recent moves7 records

Expansion highlights5 records

Emerging players

• McPhy Energy: French hydrogen equipment and station provider. Competes in the European H2 refueling station market alongside SAT's hydrogen fueling station offerings.
• Greenlane Renewables: Canadian provider of biogas upgrading systems (PSA, membrane, water scrubbing) with growing European presence. Competes for the same biomethane injection tenders as SAT but from a different technology base.
• ITM Power: UK-based PEM electrolyser and hydrogen refueling company. Competes in the hydrogen mobility ecosystem where SAT supplies H2 dispensers and storage, with overlapping reference customers in the European H2 mobility market.

Direct peers

• Hitachi Zosen Inova (HZI): Swiss/German EPC for biogas and waste-to-energy plants with full biomethane upgrade and grid injection capability. Competes on large-scale biogas plant tenders where SAT also bids.
• Carbotech: German-based direct competitor in biogas upgrading, specializing in membrane-based gas separation and CO2 scrubbing. Competes head-to-head with SAT's BGAA plants for European biomethane injection projects.
• Nel ASA: Norwegian hydrogen and CNG/LNG fueling solutions provider offering complete station packages. Most direct competitor in hydrogen refueling stations, including the same 350/700 bar segments SAT targets.
• Bauer Comptec: German-based manufacturer of CNG/LNG compressors and refueling station equipment. Direct competitor in the CNG/LNG compressor and station subsystem segment where SAT sells complete stations.

Broad incumbents

• Dürr Systems: Large German industrial plant engineering group with environmental technology division (including biogas). Adjacent competitor for turnkey industrial plant projects and biogas/biomethane infrastructure investments.
• Linde Engineering: Division of Linde plc providing large-scale gas processing and plant engineering. Overlaps with SAT's biogas upgrading and CO2 liquefaction business but at much larger scale and with broader geographic reach.
• MAN Energy Solutions: Large German industrial gas and compression technology provider. Already a customer (MAN Turbo & Diesel tank farm) and a peer in gas compression and storage infrastructure relevant to LNG/CNG/hydrogen stations.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/schwelm-anlagentechnik-gmbh

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Schwelm Anlagentechnik