Weltec Biopower

What Weltec Biopower does

WELTEC BIOPOWER GmbH, headquartered in Vechta, Germany, is a privately held specialist engineering, procurement, and construction (EPC) contractor that designs and builds stainless-steel anaerobic digestion plants converting organic waste into biogas and biomethane. Founded in 2001 as a joint venture between Stallkamp and WEDA, the company has delivered more than 450 projects across 27 countries on six continents, serving four primary customer segments: industry (food processors, breweries, distilleries, chemical companies with organic residue streams), waste management (municipal and commercial organic waste handlers), agriculture (livestock and crop farms seeking energy independence and nutrient management), and wastewater management (municipal and industrial sewage treatment plants). Its core technical differentiator is corrosion-resistant stainless-steel reactor construction using modular Segmentbauweise assembly, complemented by proprietary components including the WELTEC CONTROL plant management system, WELTEC BLUE WATER digestate and manure processing (formerly Kumac), MULTIMix substrate input technology, ProMOS Bio management software, and membrane-based biogas upgrading with CO2 liquefaction. The company maintains a proprietary substrate database of over 400 industrialized materials enabling customized plant configuration.

The company operates a direct enterprise sales model from its Vechta headquarters supported by international sales managers for key regions (Spain/South America, Japan, Korea, UK, Poland) and a global channel of roughly 17 sales partners including a 15-year exclusive French partnership with AGRIPOWER France (30+ joint projects) and wholly-owned subsidiaries in the UK (WELTEC BIOPOWER UK Ltd., 2009), USA (AMBICO, 2007), and the Czech Republic (WELTEC BIOPOWER ME s.r.o., 2007). Revenue is generated through one-time EPC contracts (typical 12–24 month project timelines) plus recurring professional services including biological and technical optimization, modernization/repowering, spare parts, remote monitoring, and 24/7 support across the installed base, plus three-tiered consulting packages (Kompakt, Plus, Premium) for feasibility and bankable business plans. Pricing is custom per project and not publicly disclosed. In 2021, WELTEC established a separate €100M investment fund to acquire existing and new plants, and the company has historically acquired underperforming assets (notably the Könnern biomethane park in 2015 and two insolvent German plants in 2018) to build a self-operated portfolio of nine locations.

The company has received ISO 9001:2015 and ISO 14001 certifications (2009, one of the first plant builders), RED II certification for its Könnern biomethane park (2020), and multiple industry awards including the 2017 ADBA awards (best agricultural and best industrial plant), the 2018 German Foreign Trade Award, and the 2015 Biogas Innovationspreis. Reporting cumulative greenhouse gas emissions avoided of 10.19 million tons CO2 since 2001 (approximately 600,000 tons annually), WELTEC is led by co-managing directors Dirk Krumdieck and Tobias Gerweler, with management board expansion executed June 2025 to support continued growth.

Name

Weltec Biopower

Legal name

WELTEC BIOPOWER GmbH

Website

https://weltec-biopower.com

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

51–100 employees

Short description

WELTEC BIOPOWER is a German EPC contractor that designs and builds stainless-steel biogas and biomethane plants, serving industrial, agricultural, waste, and wastewater customers across 27 countries with a turnkey project-plus-service model.

Ownership category

akta.pro rank

Product category

Biogas and Biomethane Plant Manufacturing

NAICS

Biomass Electric Power Generation (221117), Fertilizer and Compost Manufacturing (32531), Sewage Treatment Facilities (221320)

SIC

Industrial Process Furnaces & Ovens (3567), Industrial Organic Chemicals (2860)

akta.pro primary industry

Biogas/RNG Plant Development, EPC & Project Delivery (EUAAAEAH)

akta.pro secondary industries

Anaerobic Digestion Biogas Power (Agricultural & Industrial AD) (EUACAIAD), Food Waste-to-Energy (Organic Waste AD & Thermal) (EUACAIAH), Biogas Upgrading to RNG & Injection/Fueling (Gas Cleanup, Compression) (EUAIAEAF), Digestate Processing, Nutrient Recovery & Fertilizer Products (Struvite, Ammonia, Compost) (EUAAAEAL), Organics-to-Energy & CHP from Biogas (On-site Power/Heat) (EUAIAEAG)

Keywords

• Biogas plant construction
• Biomethane plant engineering
• Anaerobic digestion systems
• Renewable energy EPC
• Stainless steel bioreactors

Headquarters

HQ city

Vechta

HQ country

Germany

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Biogas Plant Design and Construction: Custom engineering, planning, and turnkey construction of biogas and biomethane plants. Revenue from EPC (Engineering, Procurement, Construction) contracts covering full project lifecycle from feasibility through commissioning. Project timelines typically 12-24 months.
2. Plant Service and Maintenance: Ongoing service contracts, maintenance, biological and technical optimization, spare parts, remote monitoring, and 24/7 support. Repowering solutions and modernization services for existing plants.
3. Consulting and Engineering Services: Feasibility studies, permit planning, business model analysis, and economic viability assessments. Consultation packages (Kompakt, Plus, Premium) for plant evaluation and future planning.

Go-to-market motion3 records

Distribution channels5 records

Marketing channels6 records

Core offering

WELTEC BIOPOWER GmbH designs, engineers, manufactures, and commissions turnkey stainless steel biogas and biomethane plants that convert organic residues (manure, food waste, industrial by-products, sewage sludge, energy crops) into renewable electricity, heat, biomethane, and organic fertilizer. The company delivers the complete value chain from feasibility study and permitting through construction and commissioning, supported by proprietary technologies (WELTEC CONTROL plant management, WELTEC BLUE WATER digestate processing), ongoing biological and mechanical service, repowering, and 24/7 remote monitoring.

Product overview

WELTEC BIOPOWER develops and builds stainless steel biogas and biomethane plants as its core product, covering the complete value chain from planning and engineering through construction and commissioning. The product portfolio centers on anaerobic digestion plants with proprietary stainless steel fermenters, complemented by add-on modules including WELTEC CONTROL (plant control and monitoring system), WELTEC BLUE WATER (manure and digestate processing, formerly Kumac), MULTIMix (substrate input system), ProMOS Bio (plant management software), and advanced biogas upgrading with membrane technology and CO2 liquefaction. Gas utilization concepts include CHP, grid injection, and biomethane liquefaction. The company provides comprehensive service offerings covering repowering, modernization, CHP service, mechanical service, audit management, and biological optimization for plants across agriculture, industry, waste management, and wastewater sectors.

Differentiator

Problem solved

Functional benefit

Brands

• WELTEC BLUE WATER: Gülle- und Gärrestaufbereitung (slurry and digestate processing) technology for nutrient management. Formerly branded as 'KUMAC' before being rebranded.
• WELTEC CONTROL

Products and services

• Stainless Steel Biogas Plants Turnkey stainless steel biogas plants that convert organic waste streams (manure, food waste, industrial residues, energy crops) into renewable electricity and heat. Built with corrosion-resistant Edelstahl fermenters in modular Segmentbauweise and delivered via full EPC contract covering planning, permitting, construction and commissioning. Sold to industrial, agricultural, municipal waste, and wastewater customers globally.
• Biomethane Plants Upgraded biogas plants producing pipeline-quality biomethane for grid injection or use as vehicle fuel, building on WELTEC's biogas process technology with membrane-based upgrading and CO2 liquefaction. Sold to enterprise customers across agriculture, industry, and waste management sectors.
• WELTEC BLUE WATER Digestate Processing System Manure and digestate processing system (formerly Kumac) that transforms fermentation residues into high-quality organic fertilizer, closing the nutrient cycle and reducing nutrient surplus pressure. Sold as an add-on to biogas plant operators in agriculture and waste management.
• WELTEC CONTROL Plant Management System Proprietary plant control and monitoring system providing intuitive remote operation and performance oversight for biogas plants, enabling optimal process control and remote service from WELTEC's headquarters. Sold to operators of WELTEC-built plants and as part of new plant delivery.
• Biogas Plant Service Portfolio Comprehensive after-sales service portfolio for biogas and biomethane plant operators, covering repowering, modernization, CHP service, mechanical service, audit management, and biological process optimization, plus 24/7 support and remote monitoring. Sold to operators of WELTEC and compatible plants.
• Biogas Consulting and Engineering Services Feasibility studies, permit planning, business model analysis, and economic viability assessments for prospective biogas/biomethane projects, delivered through tiered packages (Kompakt, Plus, Premium). Sold to industrial, agricultural, municipal, and wastewater prospects evaluating plant investments.

Named customers8 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

Feature6 records

Partnerships

Twelve partnerships are on record, tiered core and minor.

• AGRIPOWER France SAScoreChannel Partner/ Reseller/ Distributor · 2 February 2026Nearly 15-year partnership with French biogas specialist. Jointly implemented 30+ plant projects in France including Agrigaz Vire and SOBER 1 & 2 installations for BRETS agro-industrial company. Co-exhibit at BIO360 Nantes trade show. Expanded partnership in early 2026.
• GTS (UK/Ireland)coreChannel Partner/ Reseller/ DistributorExtended service partnership for UK and Ireland covering biological service for WELTEC biogas plants. GTS provides local service support while biological service expertise comes from Vechta headquarters.
• Melchers Techexport (Taiwan)minorChannel Partner/ Reseller/ DistributorSales partner for Taiwan market. Local representation and customer coordination.
• FT BIOPOWER Co. Ltd. (Japan)coreChannel Partner/ Reseller/ DistributorSales partner Hiroaki Shibata representing WELTEC in Japan. Active market with multiple projects including earthquake-resistant plant constructions.
• Best Way to Energy (Australia)minorChannel Partner/ Reseller/ DistributorSales partner Alexander Vogelsang for Australian market.
• WELTEC BIOPOWER ME s.r.o. (Slovakia)coreChannel Partner/ Reseller/ DistributorCentral European partner company handling Slovak and Czech markets. Contact Miroslav Pacák.
• Tetoros Machinery S.A. (Greece)coreChannel Partner/ Reseller/ DistributorGreek sales partner John Tetoros representing WELTEC. Multiple projects completed including three biogas plants in Greece in 2023.
• Generizon sarl. (West Africa)minorChannel Partner/ Reseller/ DistributorSales partner Manfred Schweda for West African markets.
• Energia VISIBLE S.A.S. (Colombia)minorChannel Partner/ Reseller/ DistributorSales partner Juan Carlos Uribe S. for Colombian market.
• CONTIL (Brazil)minorChannel Partner/ Reseller/ DistributorSales partner Rubens Cezar for Brazilian market.
• HIPA Solutions (Chile)minorChannel Partner/ Reseller/ DistributorSales partner Jorge Hidalgo Padilla for Chilean market.
• Hydrolia AD (Bulgaria)minorChannel Partner/ Reseller/ DistributorSales partner Dipl. Eng. Nikolay Nikolov for Bulgarian market.

Scale indicators6 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Schmack Biogas (Hitachi Zosen Inova): Originally a German biogas EPC pioneer, now owned by Hitachi Zosen Inova. Overlaps with WELTEC on biomethane grid injection projects and offers comparable plant sizes across Europe, particularly in agricultural and waste applications.
• BTS Biogas: Italian-headquartered EPC contractor for anaerobic digestion and biomethane plants. Comparable scope across agricultural, industrial, and waste substrates, with strong Mediterranean and Eastern European market overlap.
• Xergi (Nature Energy): Danish biogas EPC contractor and plant operator, now part of Nature Energy. Competes directly with WELTEC in Northern European agricultural and industrial biomethane markets, with a similar integrated EPC-plus-asset-ownership model.
• AgriKomp: German manufacturer of biogas plants focused on agricultural and small-scale industrial applications. Competes with WELTEC's agricultural segment and shares the same German Mittelstand EPC delivery model.
• PlanET Biogas Group: German/Canadian biogas plant manufacturer specializing in agricultural and industrial anaerobic digestion. Comparable plant sizes, customer segments, and EPC delivery model make PlanET a direct functional competitor to WELTEC.
• EnviTec Biogas AG: German-listed EPC contractor and operator of biogas/biomethane plants across Europe. Competes head-to-head with WELTEC on agricultural, industrial, and municipal AD projects and is the closest publicly traded benchmark for the same business model.

Emerging players

• Bright Renewables (Bright Biomethane): Dutch specialist in biogas upgrading systems and small-to-mid scale AD plants. Overlaps with WELTEC on biomethane upgrading technology and smaller industrial projects, with a tighter focus on the upgrading module rather than full plant EPC.

Broad incumbents

• Hitachi Zosen Inova: Global engineering incumbent with a large-scale waste-to-energy and biogas portfolio. Larger balance sheet and broader scope allow it to pursue mega-projects that WELTEC typically cannot bid on, but with significant functional overlap on AD technology.
• Anaergia: North American-based provider of anaerobic digestion and biogas solutions with global reach. Comparable substrate and customer profile (municipal solid waste, agricultural, industrial) and competes with WELTEC's North American activity via its AMBICO subsidiary.
• Air Liquide Engineering: Industrial gas major with a biogas upgrading and biomethane engineering practice. Competes with WELTEC on the gas-upgrading portion of projects (membrane and CO2 liquefaction) and brings much deeper gas-handling IP and balance sheet.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

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Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Weltec Biopower