bioin

What bioin does

BioIN GmbH is a Bavarian municipal-industrial joint venture that operates a single-site biogas and composting facility in Stammham (near Ingolstadt), Germany, processing up to 32,000 tonnes of bio-waste annually. Founded in September 2012, the company is majority-owned (51%) by the municipal utility Ingolstädter Kommunalbetriebe (INKB) and 49% by private waste management firm BÜCHL Gruppe, with the Aufsichtsrat chaired by Ingolstadt's deputy mayor. BioIN converts predominantly kommunal gesammelte Bioabfälle from Ingolstadt and surrounding Bavarian Landkreise into electricity (5.0–5.5 million kWh/year, equivalent to ~2,500 households), thermal energy, certified compost products, and liquid fertilizer, achieving 100% material and energetic utilization of incoming biological waste.

The facility's technical core is an AXPO Kompogas horizontal plug-flow fermenter running thermophilic continuous dry fermentation, fed by municipal collection vehicles, with two Jenbacher 312 CHP units, a 2,700 cbm gas storage enabling Flexbetrieb dispatch optimization, and a 750 kWp photovoltaic system delivering on-site energy self-sufficiency. Downstream, a press separates digestate into solid and liquid fractions; solid digestate is dried in converted composting drums, and liquid digestate is distributed to regional farmers as liquid fertilizer. BioIN sells its compost portfolio (Fertigkompost, Frischkompost, Grüngutkompost, Pflanzerde) under the BGK-certified "Naturfreund" brand to regional farmers, garden and landscaping companies (GaLa-Bau), and at INKB municipal Wertstoffhöfe.

BioIN earns revenue through three streams: per-tonne gate fees from municipal bio-waste processing contracts (Landkreis Kelheim, Landkreis Eichstätt, Stadt München, Alb-Donau-Kreis); electricity sales via direct marketing on dynamic energy markets following its 2022 transition to Überschusseinspeiser; and product sales of Naturfreund compost and liquid fertilizer. The company holds Entsorgungsfachbetrieb, RED II, EEG, ISO 50001, SURE-EU, and BGK Gütesicherung certifications, is a member of Fachverband Biogas and BGK, and participates in the Bavarian Klimaneutrales Bayern 2040 initiative. In May 2025 it began operational testing of the German waste-management industry's first electric CAT 950 GC wheel loader, charged via its own PV installation.

Name

bioin

Legal name

BioIN GmbH

Website

https://bioin-gmbh.de

Company type

Private

Founded year

2012

Operating status

Operating

Short description

BioIN GmbH is a Bavarian municipal-industrial joint venture operating a single-site biogas and composting facility in Stammham, Germany, processing up to 32,000 tonnes of municipal bio-waste annually into renewable electricity, certified compost products under the Naturfreund brand, and liquid fertilizer for regional agriculture and landscaping customers.

Ownership category

akta.pro rank

Product category

Organic Waste Recycling & Renewable Energy

NAICS

Biomass Electric Power Generation (221117), Fertilizer and Compost Manufacturing (32531), Compost Manufacturing (325315)

SIC

Cogeneration Services & Small Power Producers (4991), Sanitary Services (4950), Refuse Systems (4953)

akta.pro primary industry

Anaerobic Digestion Biogas Power (Agricultural & Industrial AD) (EUACAIAD)

akta.pro secondary industries

Digestate Processing, Nutrient Recovery & Fertilizer Products (Struvite, Ammonia, Compost) (EUAAAEAL), Food Waste-to-Energy (Organic Waste AD & Thermal) (EUACAIAH), Organic & Bio-based Fertilizers (Manure/Compost/Biochar) (IMAEAEAF), Biogas Upgrading-to-Power (Biomethane-to-Power, Pipeline Injection + Power) (EUACAIAJ)

Keywords

• Organic waste processing
• Biogas production
• Compost manufacturing
• Renewable electricity generation
• Liquid fertilizer production

Headquarters

HQ city

Ingolstadt

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Operations, Personnel, Infrastructure, Technology or R&D, Supply Chain, Others

Revenue model

1. Electricity Generation and Feed-in: BioIN generates approximately 5.0-5.5 million kWh of electricity annually from biogas via two Jenbacher 312 BHKW units. The company transitioned from full feed-in to surplus feed-in mode following PV installation, with electricity sold via direct marketing contract on dynamic energy markets.
2. Compost Products: BioIN produces and sells Fertigkompost (finished compost), Frischkompost (fresh compost), Grüngutkompost (green waste compost), and Humus-Kompost-Mischung (humus-compost mixture) under the Naturfreund brand. Products are sold to regional farmers, garden and landscaping companies (GaLa-Bau), and at municipal recycling centers (Wertstoffhöfe).
3. Liquid Fertilizer: Liquid digestate is sold as liquid fertilizer to regional farmers. Farmers receive automatic delivery via on-site tanks, based on purchase contracts with BioIN.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

BioIN GmbH operates a biogas and composting facility in Stammham, Bavaria, processing municipal bio-waste and green waste into renewable energy and certified soil products. The company converts organic waste into biogas (generating ~5.0–5.5 million kWh of electricity annually via two Jenbacher 312 CHP units), and produces certified compost products (Fertigkompost, Frischkompost, Grüngutkompost, Pflanzerde) and liquid fertilizer under the Naturfreund brand. BioIN also generates self-consumed renewable energy via a 750 kWp photovoltaic installation.

Product overview

BioIN GmbH operates a biogas and composting facility that processes municipal bio-waste and green waste into renewable energy and certified soil products. The company offers a portfolio of compost and fertilizer products under the 'Naturfreund' brand, including: coarse-grained green waste compost (Grüngutkompost Grobkörnig), finished compost (Fertigkompost), fresh compost (Frischkompost), plant soil/humus-compost mixture (Pflanzerde/Humus-Kompostmischung), and liquid fertilizer (Flüssigdünger) derived from biogas production digestate. All products carry BGK quality certification and RAL quality marks. The company generates approximately 5.0-5.5 million kWh of electricity annually from biogas and operates a 750 kWp photovoltaic installation for self-supply.

Differentiator

Problem solved

Functional benefit

Products and services

• NATURFREUND Grüngutkompost Grobkörnig Coarse-grained green waste compost certified by BGK (Bundesgütegemeinschaft Kompost) according to RAL standards. Suitable for soil improvement in agricultural applications and landscaping (GaLa-Bau). Promotes humus formation and is well-suited for organic farming.
• NATURFREUND Kompost Quality-certified compost (RAL-Gütesiegel) for garden soil improvement and fertilization. Free of weed seeds and plant diseases, meeting strict quality criteria including organic farming standards. Available in 0-15mm screening size.
• NATURFREUND Pflanzerde (Humus-Kompostmischung) Plant soil consisting of top-quality farmland soil and high-quality compost, screened to 15mm. Used as plantable and sowable substrate for new planting areas in outdoor settings.
• Naturfreund Flüssigdünger Nutrient-rich liquid fertilizer (Gärrest/flüssiger Gärrest) produced from biogas production digestate. Quality-certified through BGK, this sustainable fertilizer serves as an alternative to mineral fertilizers for regional agriculture.
• NATURFREUND Frischkompost Fresh compost made from green waste, produced through windrow composting to Rottegrad 5, quality-certified by BGK.
• NATURFREUND Fertigkompost Finished/processed compost from bio-waste, produced through digestion residue processing, quality-certified by BGK with RAL quality mark valid through June 2026.
• Municipal Bio-Waste Processing Service Contract-based processing of municipal bio-waste under multi-year agreements with Landkreise (counties) and cities. Includes Landkreis Kelheim (from January 2026, ~8,000 tonnes/year), Landkreis Eichstätt, Stadt München, and Alb-Donau-Kreis. Collection vehicles deliver directly to the facility.
• Renewable Electricity Generation & Feed-in Generation of approximately 5.0-5.5 million kWh of electricity annually from biogas via two Jenbacher 312 BHKW units, with surplus electricity sold to the grid via direct marketing contract on dynamic energy markets.

Quantifiable outcome

• 5.0-5.5 million kWh electricity generated annually, equivalent to ~2500 single-family homes
• +2 more outcomes

Named customers6 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

Feature5 records

Partnerships

Ten partnerships are on record, tiered core and minor.

• Landkreis KelheimcoreChannel Partner/ Reseller/ Distributor · 1 January 2026Since January 2026, BioIN is contract partner for processing bio waste from Landkreis Kelheim. Approximately 8000 tonnes per year, processed jointly with a partner company. Collection vehicles deliver directly without transfer.
• KEI (Kommunalunternehmen Landkreis Pfaffenhofen)minorOthers · 1 November 2023KEI representatives visited BioIN facility to learn about biogas plant operations. BioIN discussed rising safety and certification requirements, collaboration with regional agriculture, and challenges in plant operation and material procurement.
• EHGARTNER (Geretsried)minorChannel Partner/ Reseller/ Distributor · 1 August 2023EHGARTNER is an Entsorgungsunternehmen (disposal company) that brought a customer producing plant-based ice cream spoons to BioIN for processing of approximately 100 tonnes of production residues annually.
• Partnerunternehmen für Landkreis KelheimcoreChannel Partner/ Reseller/ Distributor · 1 July 2023A partner company jointly processes bio waste from Landkreis Kelheim alongside BioIN's own processing. Ensures Sammelfahrzeuge can deliver directly to processing facilities.
• Landkreis EichstättcoreChannel Partner/ Reseller/ Distributor · 1 July 2023BioIN processes bio waste from Landkreis Eichstätt under a contract running parallel to the Landkreis Kelheim contract. Ensures direct delivery and processing.
• Ingolstädter Kommunalbetriebe (IN-KB)coreStrategic or Co-development Partner · 1 September 201251% shareholder in BioIN GmbH. IN-KB is a municipal enterprise (AöR) providing municipal services including waste collection. They are the majority shareholder and provide municipal bio waste streams for processing.
• BÜCHL Gruppe (BÜCHL Entsorgungswirtschaft GmbH)coreStrategic or Co-development Partner · 1 September 201249% shareholder in BioIN GmbH. The BÜCHL Gruppe is a waste management company providing commercial bio waste streams and operating the replacement recycling center (Ersatz-Recyclinghof Büchl) where BioIN products are sold.
• Fachverband BiogasminorOthersBioIN is a member of the Fachverband Biogas (German Biogas Association), the industry body for biogas producers.
• Bundesgütegemeinschaft Kompost (BGK)coreOthersBioIN is a member of BGK which provides quality certification for all compost and digestate products under RAL-Gütesiegel.
• AXPO KompogascoreTechnology or IntegrationAXPO Kompogas supplied the liegender Pfropfenstrom-Fermenter (horizontal plug-flow fermenter) at the core of BioIN's biogas production. The technology enables thermophilic continuous dry fermentation.

Scale indicators7 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Verbio AG: Germany's largest independent producer of biomethane, biodiesel and bioethanol from agricultural and organic residues. Directly comparable as a German operator of anaerobic digestion / biogas plants producing renewable energy and organic fertilizer co-products.
• EnviTec Biogas AG: German-listed company that plans, builds and operates biogas plants across Europe using agricultural and bio-waste feedstocks. Directly comparable in AD technology stack, CHP-based electricity output, and digestate-based fertilizer by-products.
• Hitachi Zosen Inova Schmack Biogas: Major European provider of anaerobic digestion and biogas plant technology, with operating references on agricultural and bio-waste AD. Comparable to BioIN's dry-fermentation, CHP-coupled operating model.
• Kompogas (AXPO Solutions AG): Supplier of BioIN's liegender Pfropfenstrom-Fermenter (horizontal plug-flow dry-fermenter) technology; Kompogas itself also develops and operates AD biogas plants on bio-waste in Switzerland and Germany, making it a direct peer in thermophilic dry fermentation.

Emerging players

• agriKomp GmbH: German manufacturer and operator of small-to-mid-scale biogas plants using agricultural and bio-waste feedstocks. Comparable technology scope but more focused on-farm/Agri scale; overlaps with BioIN on digestate-based fertilizer use.

Broad incumbents

• BÜCHL Entsorgungswirtschaft GmbH: 49% shareholder of BioIN and parent of the BÜCHL Gruppe; a broader Bavarian waste-management company operating recycling centers, commercial waste collection and disposal services. Comparable through shared customer base and overlapping bio-waste stream sourcing.
• REMONDIS SE & Co. KG: One of Europe's largest privately owned waste-management and recycling groups, operating AD/biogas plants, composting facilities and organic-fertilizer production across Germany. Comparable in end-to-end bio-waste processing value chain.
• ALBA Group / Interseroh: Major German waste-management and circular-economy group with sorting, recycling and organic-waste processing operations. Comparable in municipal bio-waste collection contracts and downstream material-recovery output.

Others

• Compo Expert GmbH: European specialty fertilizer manufacturer with a strong organic and slow-release fertilizer portfolio. Comparable on the fertilizer/soil-amendment output side of BioIN's business, though distribution- and retail-led rather than waste-fed.
• K+S Aktiengesellschaft: Large European fertilizer and salt producer with growing organic-fertilizer and soil-conditioner offerings. Comparable as a regional competitor in the agricultural fertilizer market where BioIN sells its Naturfreund compost and liquid fertilizer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 bioin