WELTEC
WELTEC BIOPOWER is a German engineering company that designs, builds, and services stainless steel biogas and biomethane plants for industrial, agricultural, and municipal customers worldwide, using a proprietary substrate database of 400+ materials.
- Company typePrivate
- Founded2001
- HeadquartersVechta, Germany
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What WELTEC does
WELTEC BIOPOWER GmbH is a privately held German engineering company founded in 2001 and headquartered in Vechta, Germany. The company designs, engineers, builds, and services stainless steel biogas and biomethane plants that convert organic residues—including agricultural manure, industrial waste, energy crops, and sewage sludge—into renewable energy for industrial, municipal, and agricultural customers. Its core technology centers on stainless steel reactor systems optimized for flexible substrate input, supported by a proprietary database of more than 400 successfully industrialized substrates. The product portfolio comprises Biogasanlagen (biogas plants), Biomethananlagen (biomethane plants for grid injection or vehicle fuel), and two branded add-on modules: WELTEC BLUE WATER for digestate processing and nutrient management, and WELTEC CONTROL for plant monitoring and remote operations management.
The company operates a project-based enterprise sales motion with direct, individualized consultation from feasibility through permitting, construction, commissioning, and ongoing service. Revenue is generated primarily through one-time plant construction projects supplemented by a recurring professional services stream that includes maintenance, biological and mechanical optimization, CHP service, and repowering/modernization of existing facilities. Management is led by three Managing Directors—Jens Albartus, Dirk Krumdieck, and Tobias Gerweler—and the company employs approximately 70 people.
WELTEC has executed more than 450 projects across 27 countries spanning Europe, Asia, and North America, with reference installations including Irish brewery and whiskey residue-to-biomethane (Evergreen), agricultural plants in Japan and the United States, and large-scale biomethane refineries in Germany. The company claims cumulative greenhouse gas emissions avoidance of 10.3 million tonnes of CO2 since inception, with approximately 600,000 tonnes avoided annually.
WELTEC firmographics
Firmographics- Name
- WELTEC
- Legal name
- WELTEC BIOPOWER GmbH
- Website
- https://weltec-biopower.de
- Company type
- Private
- Founded year
- 2001
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- WELTEC BIOPOWER is a German engineering company that designs, builds, and services stainless steel biogas and biomethane plants for industrial, agricultural, and municipal customers worldwide, using a proprietary substrate database of 400+ materials.
- Ownership category
- akta.pro rank
WELTEC industry classification
Industry- Product category
- Biogas and Biomethane Plant Manufacturing
- NAICS
- Biomass Electric Power Generation (221117)
- akta.pro primary industry
- Anaerobic Digestion Biogas Power (Agricultural & Industrial AD) (EUACAIAD)
- akta.pro secondary industries
- Biogas Upgrading-to-Power (Biomethane-to-Power, Pipeline Injection + Power) (EUACAIAJ), Digestate Processing, Nutrient Recovery & Fertilizer Products (Struvite, Ammonia, Compost) (EUAAAEAL), Energy Recovery from Biosolids (Biogas Utilization, CHP, Gas Upgrading) (EUANAHAG)
Keywords
Where WELTEC is headquartered
LocationHeadquarters
- HQ city
- Vechta
- HQ country
- Germany
- HQ region
- Europe
Offices2 records
Markets served
WELTEC business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Biogas and Biomethane Plant Construction: Design, engineering, construction and commissioning of custom biogas and biomethane plants for industrial, municipal, and agricultural customers worldwide. Projects are custom-tailored solutions with full project management from consultation through to operational facility.
- Plant Service and Maintenance: Ongoing service including regular maintenance, biological and technical optimization, CHP (BHKW) service and operations management, mechanical service, testing management, and biological consulting services. Repowering and modernization services also offered.
- Repowering and Modernization: Customized repowering solutions to optimize existing biogas plants for sustainable profitability. Includes manufacturer-independent renovation and modernization of existing facilities.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom Project-Based Pricing |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels7 records
WELTEC product offering
Product offeringCore offering
WELTEC BIOPOWER designs, engineers, and constructs stainless steel biogas and biomethane plants that convert organic residues—including agricultural manure, industrial waste, energy crops, and sewage sludge—into renewable energy for industrial, municipal, agricultural, and wastewater customers. The company provides full project support from consultation and engineering through construction, commissioning, and ongoing maintenance, complemented by proprietary monitoring (WELTEC CONTROL) and digestate processing (WELTEC BLUE WATER) systems.
Product overview
WELTEC BIOPOWER offers a unified portfolio of stainless steel biogas and biomethane plant solutions for converting organic residues into renewable energy. The core products consist of Biogasanlagen and Biomethananlagen, which are complemented by proprietary add-on modules including WELTEC BLUE WATER for nutrient management and digestate processing, and WELTEC CONTROL for plant monitoring. The company provides comprehensive services spanning planning & engineering, plant construction, and ongoing maintenance including repowering and modernization. The product architecture follows a full-value-chain approach from substrate analysis and plant design through construction and commissioning to long-term operational support.
Differentiator
Problem solved
Functional benefit
Brands
- WELTEC BLUE WATER: Nutrient management and digestate processing technology for biogas plants
- WELTEC CONTROL
Products and services
- Biogas Plants Stainless steel modular biogas plants that convert organic residues into renewable biogas for industrial, agricultural, municipal, and wastewater operators. Each plant is configured to specific substrates and output requirements.
- Biomethane Plants Stainless steel biomethane upgrading plants that refine raw biogas into grid-quality biomethane for injection into natural gas networks or use as vehicle fuel. Targeted at industrial operators and energy project developers.
- WELTEC BLUE WATER Proprietary digestate processing system that separates and recovers water and nutrients from biogas plant residuals, supporting nutrient circularity and compliance with agricultural discharge regulations. Designed for plant operators handling liquid digestate streams.
- WELTEC CONTROL Remote monitoring and control system for biogas and biomethane plants that enables performance tracking, fault detection, and operational optimization across WELTEC's installed base.
- Planning & Engineering Services Consultation, feasibility study, custom engineering, permitting support, and project planning delivered by WELTEC's in-house engineering team for plant construction projects.
- Service & Maintenance Ongoing after-sales service, preventive maintenance, spare parts supply, and technical support for installed biogas and biomethane plants.
Quantifiable outcome
- 10,295,100.49 tons of CO2 emissions avoided since 2001
- +2 more outcomes
Companies that use WELTEC
Customer profileNamed customers6 records
Segments5 records
Ideal customer profiles5 records
WELTEC technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
WELTEC partnerships and signals
Strategic signalScale indicators6 records
Recent moves5 records
Expansion highlights5 records
WELTEC competitors and assessment
Company assessmentDirect peers
- EnviTec Biogas AG: German-headquartered constructor of biogas and biomethane plants operating across Europe, North America, and Asia. Directly competes with WELTEC in agricultural, industrial, and municipal AD plant construction with a similar full-value-chain EPC and service model.
- PlanET Biogas Group: German family-owned biogas plant constructor offering custom AD and biomethane solutions for agriculture, industry, and waste management. Closely comparable to WELTEC in target segments, technology stack, and project-based enterprise sales model.
- Agraferm Technologies AG: Austrian/German-based EPC for agricultural and industrial anaerobic digestion plants with biomethane upgrading. Competes with WELTEC in the same substrate-flexible AD/biomethane plant category with comparable customer profile.
- BioConstruct GmbH: German biogas and biomethane plant constructor serving agricultural, industrial, and waste management customers with full EPC and biological service. Direct competitor to WELTEC in the German Mittelstand biogas EPC segment.
- BTS Biogas Srl: Italy-based EPC for agricultural and industrial anaerobic digestion and biomethane plants. Comparable to WELTEC in technology, substrate flexibility, and project-based sales, with primary overlap in European agricultural biogas.
- HoSt Holding B.V. Dutch EPC specializing in biogas, biomethane, and organic waste-to-energy plants with international project references. Overlaps directly with WELTEC's industrial, agricultural, and waste-management plant construction offering.
- Xergi / Nature Energy: Danish AD/biogas plant constructor and operator that supplies plants similar to WELTEC's and was acquired by Nature Energy to vertically integrate supply. Comparable in substrate-flexible plant design and biomethane production focus.
Broad incumbents
- Hitachi Zosen Inova (Schmack Biogas): Swiss-headquartered energy-from-waste and biogas technology group that acquired Schmack Biogas. Larger incumbent offering broader energy-from-waste capabilities alongside biogas AD/biomethane plants that compete with WELTEC in industrial and municipal segments.
- Viessmann Biogas (now part of Carrier): Legacy German heating/biogas technology supplier with biogas plant portfolio serving European agriculture. Broader incumbent with significant resources competing with WELTEC in the German biogas EPC market.
Emerging players
- Anaergia Inc. North American AD and resource-recovery company building biogas plants, biomethane upgrading, and digestate processing for municipal and industrial organic waste. Overlaps with WELTEC on industrial/municipal AD and digestate processing modules.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights6 records
Customer concentration
WELTEC social profiles
Digital presenceWELTEC financial estimates
Financial estimateRevenue estimate
Valuation estimate
WELTEC leadership team
Management profileNumber of profiles
Profiles3 records
WELTEC funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
WELTEC M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about WELTEC
What does WELTEC do?
WELTEC BIOPOWER designs, engineers, and constructs stainless steel biogas and biomethane plants that convert organic residues—including agricultural manure, industrial waste, energy crops, and sewage sludge—into renewable energy for industrial, municipal, agricultural, and wastewater customers. The company provides full project support from consultation and engineering through construction, commissioning, and ongoing maintenance, complemented by proprietary monitoring (WELTEC CONTROL) and digestate processing (WELTEC BLUE WATER) systems.
Is WELTEC a public or private company?
WELTEC is a private company. It is classified as management employee owned and is currently operating.
When was WELTEC founded?
WELTEC was founded in 2001. It employs 101 to 250 people.
Where is WELTEC based?
WELTEC is headquartered in Vechta, Germany, in the Europe region.
How does WELTEC make money?
Three revenue lines are on record. Biogas and Biomethane Plant Construction is the primary driver. The others are plant Service and Maintenance and repowering and Modernization.
Who are WELTEC's main competitors?
Direct peers on record are EnviTec Biogas AG, PlanET Biogas Group, Agraferm Technologies AG, BioConstruct GmbH, BTS Biogas Srl, HoSt Holding B.V. and Xergi / Nature Energy. Broad incumbents are Hitachi Zosen Inova (Schmack Biogas) and Viessmann Biogas (now part of Carrier). Anaergia Inc. is listed as an emerging player.
Does WELTEC have an API?
No public API is recorded for WELTEC.
What industry is WELTEC in?
WELTEC's product category is Biogas and Biomethane Plant Manufacturing. Its primary akta.pro industry code is EUACAIAD, Anaerobic Digestion Biogas Power (Agricultural & Industrial AD), with a secondary code of EUACAIAJ, Biogas Upgrading-to-Power (Biomethane-to-Power, Pipeline Injection + Power). Its NAICS code is 221117.