What Stream BioEnergy does

Stream BioEnergy is an Ireland-headquartered developer and operator of industrial-scale anaerobic digestion (AD) plants, founded in 2009 and based in Dun Laoghaire, County Dublin. The company owns and operates a portfolio of biogas and biomethane facilities across Ireland and the UK, including the Tully Biogas Plant in Ballymena (Northern Ireland, operational since 2017, processing 40,000 tonnes per annum of chicken litter and producing 3MW of renewable electricity), the Tambowie Biogas Plant in Glasgow (acquired 2023, processing 70,000 tonnes per annum of distillery by-products), the Little Island facility in Cork (under construction, €80m investment, targeting 90,000 tonnes per annum and 81 GWh of biomethane by 2027), and the Deerdykes Biogas Plant (acquired from Scottish Water Horizons in 2025, with redevelopment plans targeting 200,000 tonnes per annum and 100 GWh). Its core technology converts organic waste streams, including chicken litter, distillery by-products, food waste, and agricultural residues, into renewable biomethane (injected into national gas grids), renewable electricity, nutrient-rich digestate biofertiliser, and food-grade CO2, using micro-organism-driven AD processes in enclosed oxygen-free systems.

Stream BioEnergy serves three primary customer segments: industrial feedstock suppliers (poultry farmers in Northern Ireland, Scottish whisky distilleries, food and beverage manufacturers) who require sustainable waste management; municipal waste authorities seeking organic waste processing and landfill diversion; and gas network operators (notably Gas Networks Ireland) purchasing biomethane for grid injection. Revenue is generated through four streams: (1) sales of biomethane and renewable electricity, (2) gate fees from industrial and municipal waste suppliers for processing services, (3) sales of digestate/biofertiliser to farmers, and (4) food-grade CO2 sales from the Little Island facility. Pricing is project-specific under long-term contractual agreements rather than publicly disclosed tariffs. The company is privately held, with Pioneer Infrastructure Partners (Pioneer Point Partners) as a significant institutional backer following an approximately $85m investment in 2021, and is led by co-founder Kevin Fitzduff as Managing Director.

The business model is asset-heavy infrastructure: capital intensity is high (€80m for a single facility), operational scale depends on secured planning permissions, grid connection agreements, and long-term feedstock contracts, and growth is pursued via a combination of greenfield development (Tully expansion, additional Republic of Ireland projects) and acquisitions of existing assets from utilities and water companies (Tambowie, Deerdykes). The company has obtained ISCC and UFAS certifications for the Tambowie biomethane upgrade, supporting premium pricing in regulated renewable gas markets, and won multiple sustainability awards in 2017, 2018, and 2025 for innovation and operational excellence in AD.

Name

Stream BioEnergy

Legal name

Stream BioEnergy

Website

https://streambioenergy.ie

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

11–50 employees

Short description

Stream BioEnergy develops and operates industrial-scale anaerobic digestion plants across Ireland and the UK, converting organic waste (chicken litter, distillery by-products, food waste) into renewable biomethane, electricity, biofertiliser, and food-grade CO2 for agri-food and municipal customers.

Ownership category

akta.pro rank

Product category

Renewable Biogas Production

NAICS

Biomass Electric Power Generation (221117)

SIC

Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Anaerobic Digestion (AD) & Biogas/RNG Production (Organics Feedstocks) (BPALAEAC)

akta.pro secondary industries

Biogas/RNG Plant Development, EPC & Project Delivery (EUAAAEAH), Digestate Processing, Nutrient Recovery & Fertilizer Products (Struvite, Ammonia, Compost) (EUAAAEAL), Anaerobic Digestion Biogas Power (Agricultural & Industrial AD) (EUACAIAD), Manure & Organic Residuals Feedstock Supply (Farm Organics for AD/RNG) (EUAAAFAK)

Keywords

• Anaerobic digestion plants
• Biogas production
• Biomethane generation
• Renewable energy infrastructure
• Organic waste processing

Headquarters

HQ city

Dublin

HQ country

Ireland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Biomethane and Biogas Sales: Sale of renewable biomethane produced from anaerobic digestion for injection into national gas networks or use as vehicle fuel. Also includes sale of renewable electricity generated from biogas.
2. Gate Fees for Waste Processing: Industrial food and beverage producers, farmers, and municipal entities pay gate fees for sustainable waste management and processing services.
3. Digestate/Biofertiliser Sales: Sale of nutrient-rich digestate produced as a byproduct of anaerobic digestion, providing farmers with organic fertilizer that replaces artificial alternatives.
4. Food Grade CO2 Sales: The Little Island facility will generate food grade CO2 for use in local industry as a byproduct of biomethane production.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Stream BioEnergy develops, owns and operates industrial-scale biogas plants across Ireland and the UK using anaerobic digestion technology. The company's facilities convert organic materials including chicken litter, distillery by-products, food waste and agricultural residues into renewable biogas and biomethane for grid injection, as well as nutrient-rich biofertiliser. Operational sites include Tully Biogas Plant (Northern Ireland) and Tambowie (Scotland), with the Little Island Cork facility under construction for 2027 operations.

Product overview

Stream BioEnergy develops, owns and operates industrial-scale biogas projects across Ireland and the UK using anaerobic digestion technology. The company's portfolio includes operational biogas plants (Tully Biogas Plant in Northern Ireland and Tambowie Biogas Plant in Scotland), plants under construction and upgrading (Little Island Biogas Plant in Cork, Tambowie biomethane upgrade, Deerdykes plant redevelopment), and planned greenfield developments. These facilities convert organic materials (chicken litter, distillery by-products, food waste, agricultural waste) into renewable energy (biogas/biomethane) and nutrient-rich biofertiliser through anaerobic digestion.

Differentiator

Problem solved

Functional benefit

Products and services

• Tully Biogas Plant
• Tambowie Biogas Plant
• Tambowie Biomethane Upgrade
• Little Island Biogas Plant
• Deerdykes Biogas Plant

Quantifiable outcome

• 3MW renewable electricity generation at Tully plant - powers 6,000 homes
• +3 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Gas Networks IrelandcoreStrategic or Co-development Partner · 1 May 2026Stream BioEnergy signed a biomethane connection agreement with Gas Networks Ireland, enabling biomethane from its Little Island, Cork facility to be injected directly into Ireland's national gas network. This was announced at the All-Island Bioeconomy Summit.
• Bord Gáis EnergyminorStrategic or Co-development Partner · 1 April 2026Represented at the Little Island construction site event, indicating involvement in the biomethane project development.
• Coffey GroupminorImplementation/ SI/ Consulting Partner · 1 April 2026Project partner represented at the Little Island construction event.
• Ulster Farmers UnionminorStrategic or Co-development Partner · 1 January 2025Stream BioEnergy partnered with the County Antrim branch of the Ulster Farmers Union for MND awareness fundraising, supporting Motor Neurone Disease Association Northern Ireland.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Nature Energy: Europe's largest biogas and RNG operator, operating large-scale anaerobic digestion plants across Denmark and internationally. Directly comparable as a multi-site AD/biomethane developer; Stream's O&M Manager Simon Edgar previously worked at Nature Energy, evidencing direct talent and operational overlap.
• Future Biogas: UK-based developer and operator of anaerobic digestion plants producing biomethane and renewable energy from agricultural feedstocks. Direct peer in geography (UK) and technology (AD-to-grid biomethane), with comparable feedstock mix including energy crops and agricultural residues.
• Biogen: One of the UK's largest independent AD operators, running a portfolio of food-waste-fed anaerobic digestion plants producing biogas injected into the grid. Comparable business model, geographic focus (UK), and feedstock strategy (food waste, commercial organics).
• Enva: Ireland and UK hazardous and organic waste management specialist. Comparable in operating geography (Ireland/UK), waste management services to agri-food producers, and overlap with Stream's feedstock suppliers (Stream's Plant Manager Anthony Brohan previously worked at Enva).
• Evergaz: France-headquartered independent developer and operator of anaerobic digestion plants producing biomethane injected into gas grids across Europe. Closely comparable business model as an AD specialist without upstream gas utility ownership.
• Agrivert: UK-based AD operator specialising in food waste processing into renewable energy. Direct peer on feedstock strategy (commercial food waste), technology (AD), and geography (UK), with comparable gate-fee-based revenue model.

Regional players

• Atlantic Biogas: Scotland-based AD operator on the east coast, with multi-site maintenance operations. Direct regional overlap with Stream's Tambowie and Deerdykes Scottish assets; Stream's O&M Manager Ian Fraser previously worked there.
• Bord na Móna Resource Recovery: Irish state-backed waste and resource recovery business operating AD and composting infrastructure. Direct regional peer in Ireland; Stream's Plant Manager previously held Head of Operations there. Comparable feedstock (organic waste) and end-market (digestate, renewable energy).

Emerging players

• Bennamann: UK-based biomethane and ammonia-from-manure developer using AD and membrane upgrading. Overlaps with Stream on agricultural-waste-to-biomethane, particularly around on-farm and small-to-medium-scale AD systems.
• Weltec Biopower: German manufacturer and operator of biogas and biomethane plants with focus on agricultural and industrial organic waste. Comparable on technology and EPC delivery of AD plants; partial overlap as an AD plant developer in Europe.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles14 records

Funding overview

Funding rounds2 records

Investors2 records

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 Stream BioEnergy