Renergon International

What Renergon International does

Renergon International AG is a Swiss engineering company founded in 2010 that designs and delivers turnkey biogas plants based on its proprietary RSD (Renergon Solid Digestion) dry fermentation technology. The company targets three primary segments: agricultural operations (farmers and cooperatives processing manure and crop residues), municipalities (bio-waste and green waste processing under circular economy mandates), and industrial waste managers (food processing residues and other organic byproducts). The RSD technology uses gas-tight concrete fermenter boxes operating in batch mode with percolate recirculation at thermophilic temperatures (~52°C) over a 21-day cycle, processing stackable substrates with 20-55% dry matter content without pumping or stirring during fermentation.

The product portfolio spans three plant sizes: the RSD-E (scalable waste plant for large municipal, industrial, and agricultural applications), the RSD-S (compact plant for farmers and waste disposers from 4,500 t/a substrate), and the RSD XS (mini plant with integrated fuel cell launched in 2025-08 for decentralized energy production). Reference installations include China's largest dry fermentation plant on Chongming Island (65,000 t/a capacity), the Sundern plant in Germany (supplying electricity to 1,250 households), and a new Sirnach plant in Switzerland under construction since 2024-11. The technology produces renewable electricity, heat, biomethane/CNG, organic fertilizer, and compost, with documented environmental impact including 15,900 tCO2-eq/a savings at Chongming.

Renergon generates revenue through three streams: (1) turnkey EPC delivery of biogas plant systems to municipalities, agricultural operations, and industrial clients; (2) technology licensing to international partners, exemplified by an exclusive Canadian license granted to Canadian Biogas Investments in 2025; and (3) engineering consulting and project development services. The company operates from headquarters in Lengwil, Switzerland with a German subsidiary in Markdorf, and has expanded its reach to China, Canada, and target markets including India, Indonesia, and the USA, supported by a 2021 investment from Weber GreenTech (Albert Weber-Konzern). The company employs 51-100 people.

Name

Renergon International

Legal name

Renergon International AG

Website

https://renergon-biogas.com

Company type

Private

Founded year

2010

Operating status

Operating

Headcount range

51–100 employees

Short description

Renergon International AG is a Swiss engineering company that designs and delivers turnkey biogas plants based on proprietary dry fermentation technology, serving municipalities, agricultural operations, and industrial waste managers across Europe, China, and Canada.

Ownership category

akta.pro rank

Product category

Biogas Plant Equipment

NAICS

Biomass Electric Power Generation (221117), Fertilizer and Compost Manufacturing (32531)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

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

akta.pro secondary industries

Biogas Upgrading to RNG & Injection/Fueling (Gas Cleanup, Compression) (EUAIAEAF), RNG Upgrading, Purification & Conditioning (Membranes, PSA, Amine, Cryogenic) (EUAAAEAD), RNG Liquefaction & Compression (Bio-LNG, Bio-CNG) (EUAAAEAF), Organics-to-Energy & CHP from Biogas (On-site Power/Heat) (EUAIAEAG)

Keywords

• Biogas plant systems
• Dry fermentation technology
• Anaerobic digestion equipment
• Organic waste treatment
• Renewable energy production

Headquarters

HQ city

Schweiz

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Biogas Plant Equipment & Systems: Turnkey delivery of RSD biogas plants including design, engineering, construction, and commissioning. Revenue generated from equipment sales and EPC contracts for municipal, agricultural, and industrial clients.
2. Technology Licensing: Licensing of RSD solid-state anaerobic digestion technology to international partners. Canadian Biogas Investments holds exclusive Canadian licensing rights for the technology.
3. Project Development & Engineering Services: Engineering consulting and project development services for biogas plant installations, including process optimization and plant modernization.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Renergon International designs, engineers, and delivers turnkey biogas plants based on its proprietary RSD (Renergon Solid Digestion) dry fermentation technology. The plants convert stackable organic waste streams (solid manure, bio-waste, green waste, agricultural residues) into renewable energy (electricity, heat, biomethane/CNG) and organic fertilizer. The portfolio spans three plant sizes — RSD-E (scalable waste plant), RSD-S (compact plant), and RSD XS (mini plant with fuel cell) — serving municipal, industrial, and agricultural customers globally.

Product overview

Renergon International offers a portfolio of biogas plants based on its proprietary RSD (Renergon Solid Digestion) dry fermentation technology. The product line includes three plant sizes: the RSD-E (scalable waste plant for municipalities, industry, and agriculture), the RSD-S (compact plant for farmers and waste disposers), and the RSD XS (mini plant with fuel cell for smallest-scale applications). All plants use the same patented simultaneous dry fermentation process that handles stackable organic substrates with 20-55% dry matter content, producing biogas for electricity, heat, and biomethane/CNG. The company also provides a free online biogas calculator tool. Renergon operates globally with reference plants in Switzerland, Germany, China, and other markets.

Differentiator

Problem solved

Functional benefit

Products and services

• RSD-E Biogas Abfallanlage Scalable dry fermentation biogas plant for waste disposal, designed for municipal, industrial, and agricultural applications. Processes stackable substrates including solid manure, bio-waste, garden waste, and landscape maintenance materials, producing electricity, heat, and biomethane (CNG).
• RSD-S Kompakt Biogasanlage Compact dry fermentation biogas plant designed for efficient and economical energy production in minimal space. Suitable for farmers and waste disposers processing stackable substrates including solid manure, bio-waste, and green waste, with minimum substrate requirement from 4,500 tonnes per year.
• RSD XS Mini Biogasanlage mit Brennstoffzelle Mini biogas plant with integrated fuel cell technology, representing the smallest product in the RSD line for decentralized energy production in compact form factor.

Quantifiable outcome

• 15,900 tCO2-eq/a emission savings achieved at China Chongming Island plant, equivalent to 1.59 million planted trees
• +3 more outcomes

Named customers5 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

Feature4 records

Scale indicators7 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• agriKomp: German provider of biogas plant technology, container-format small-scale plants, and service; overlaps with Renergon's RSD-S compact line for farmer and small-municipality customers.
• PlanET Biogas: German manufacturer of complete biogas plant technology for agricultural waste, bio-waste, and industrial residues; similar customer base and turnkey plant delivery model.
• EnviTec Biogas: Germany-based EPC contractor, operator, and owner of biogas plants including the Schmack Biogas portfolio; competes with Renergon in plant construction, operations, and increasingly biomethane upgrading.
• Hitachi Zosen Inova (Kompogas): Swiss-Japanese EPC contractor and operator of dry-fermentation biogas plants via its Kompogas brand; offers overlapping plug-flow anaerobic digestion technology with comparable municipal and agricultural reference base.
• BEKON Energy Technologies: German pioneer of garage-style dry fermentation biogas plants; competes most directly with Renergon's RSD-E technology in the dry-fermentation subsegment for bio-waste and green waste.
• BioConstruct: German EPC contractor for agricultural and industrial biogas plants; comparable customer segments and turnkey delivery, though primarily focused on wet fermentation.
• Agraferm Technologies: German-Austrian engineering firm designing and constructing biogas plants using a mix of wet and dry fermentation; directly comparable scope of substrate processing and EPC delivery.
• Weltec Biopower: German manufacturer of turnkey biogas plants for agricultural and waste management customers; competes head-to-head with Renergon in mid-scale farm and municipality EPC projects across the DACH region.
• Xergi (Nature Energy): Danish EPC contractor for medium-to-large agricultural and industrial biogas plants, now part of Nature Energy; comparable in substrate diversity and project-based delivery to municipalities and farms.

Broad incumbents

• Veolia: Global environmental services group operating waste, water, and energy recovery assets including biogas-to-energy; not a direct dry-fermentation competitor but increasingly relevant as municipalities consolidate biogas EPC procurement toward large incumbents.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/RENERGON_BIOGAS
• YouTubeyoutube.com/user/RenergonAG
• Facebookbit.ly/3LDFm55
• LinkedInlinkedin.com/company/renergon-international-ag

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries1 record

Funding overview

Funding rounds1 record

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 Renergon International