Antec

What Antec does

Antec Biogas AS is a privately held Norwegian developer and operator of industrial-scale anaerobic digestion facilities, headquartered in Oslo and founded in 2014–2015. The company develops, owns and operates biogas and fertilizer plants under a Build, Own, Operate (BOO) model, taking responsibility across the full value chain from planning through long-term operation. Two flagship projects — Vest Biogass in Hornindal (planned startup Q3 2026) and Malm Biogass in Malm adjacent to Salmar's smolt facility (planned startup Q3 2027) — each process approximately 150,000 tonnes of biomass per year, providing the deployment base for Antec's proprietary technology and commercial model.

The core technology is the Antec Biofilm Plug Flow Reactor, a proprietary anaerobic digestion architecture combined with conventional anaerobic methods. It exploits large surface areas for permanent bacterial growth (biofilm) and continuous flow to deliver reduced retention times, higher organic loads and higher methane yields than conventional digestion, while supporting low energy consumption, simple maintenance, modular capacity expansion and prefabricated delivery. Outputs include biomethane (liquid biogas for transport), renewable bio-CO2 for industrial use and nutrient-rich biofertilizer for agriculture.

Revenue is generated through the managed-services BOO arrangement, where Antec captures multi-product economics from each tonne of biomass processed. Feedstock is sourced locally from farmers (livestock manure), aquaculture operators (fish sludge, fish silage) and food-industry players (organic food waste); outputs are sold to the regional transport sector, food and beverage/industrial CO2 users and local farmers returning digestate to fields. A NOK 15–20 million automation contract with Goodtech (announced February 2026) instrumented the Vest Biogass facility with process control, emergency shutdown and asset performance management. Salmar is the named industrial anchor for the Malm project. Pricing is not publicly disclosed and is determined per project based on local conditions and partnership terms.

Name

Antec

Legal name

Antec Biogas AS

Website

https://antecbiogas.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

11–50 employees

Short description

Antec Biogas AS is a Norwegian developer and operator of industrial anaerobic digestion plants under a Build, Own, Operate model, deploying its proprietary Biofilm Plug Flow Reactor to convert regional manure, aquaculture waste and food waste into biomethane, bio-CO2 and biofertilizer for transport, industrial and agricultural customers.

Ownership category

akta.pro rank

Product category

Biogas Plant Development and Operations

NAICS

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

SIC

Cogeneration Services & Small Power Producers (4991), Agricultural Production-Crops (100), Agricultural Prod-Livestock & Animal Specialties (200)

akta.pro primary industry

Anaerobic Digestion (Wet/Dry AD) & Biogas Production (EUAIAEAD)

akta.pro secondary industries

Biogas/RNG Plant Development, EPC & Project Delivery (EUAAAEAH), RNG Liquefaction & Compression (Bio-LNG, Bio-CNG) (EUAAAEAF), Anaerobic Digestion Biogas Power (Agricultural & Industrial AD) (EUACAIAD), Manure & Organic Residuals Feedstock Supply (Farm Organics for AD/RNG) (EUAAAFAK)

Keywords

• Biogas plant development
• Anaerobic digestion technology
• Biofertilizer production
• Biomethane for transport
• Circular waste-to-energy

Headquarters

HQ city

Oslo

HQ country

Norway

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Biogas and Fertilizer Plant Development and Operation: Antec operates under a Build, Own, Operate (BOO) model where they develop, own, and operate biogas and fertilizer plants. They take full responsibility for the entire value chain from planning to operation. Revenue is generated through processing organic biomass into biomethane (for transport), bio-CO2 (for industrial use), and biofertilizer (for agriculture). The company processes various biomass types including livestock manure, organic food waste, fish sludge, and fish silage.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Antec Biogas develops, owns, and operates industrial-scale biogas and fertilizer plants in Norway under a Build-Own-Operate (BOO) model. Using its proprietary Biofilm Plug Flow Reactor combined with conventional anaerobic digestion, the company processes regional organic biomass (livestock manure, food waste, fish sludge, fish silage) into biomethane for transport, bio-CO2 for industrial use, and nutrient-rich biofertilizer for agriculture. Two flagship facilities (Vest Biogass in Hornindal and Malm Biogass in Malm) each have capacity to process 150,000 tonnes of biomass annually, with combined annual capacity of 300,000 tonnes.

Product overview

Antec operates across two distinct business areas: (1) PC components and peripherals, offering the Flux series of high-airflow PC cases including the Flux Pro Noctua Edition and Flux M mATX case; and (2) Antec Biogas, a Norwegian biogas and fertilizer plant developer that operates under a Build, Own, Operate (BOO) model. Antec Biogas's core offering centers on its proprietary Biofilm Plug Flow Reactor technology for anaerobic digestion, supported by facility development projects including Vest Biogass in Hornindal and Malm Biogass in Malm, each with 150,000 tonnes annual biomass processing capacity, producing biomethane, bio-CO2, and biofertilizer.

Differentiator

Problem solved

Functional benefit

Brands

• Biofilm Plug Flow Reactor: Proprietary anaerobic digestion technology developed by Antec that leverages large surfaces with permanent bacterial growth (biofilm) and continuous flow to optimize biogas production.
• Vest Biogass
• Malm Biogass

Products and services

• Vest Biogass facility A 150,000-tonne-per-year industrial biogas and fertilizer plant being built in Hornindal, Norway under Antec's Build-Own-Operate model. Produces liquid biogas (LBG) for the transport sector, bio-CO2 for industrial use, and biofertilizer for regional agriculture, and will contribute to over 40% reduced carbon footprint in Volda municipality at full production.
• Malm Biogass facility A 150,000-tonne-per-year modern biogas plant under development in Malm, Norway, co-located next to Salmar's smolt facility, processing fish sludge and fish silage from aquaculture into liquid biogas (LBG) for trucks and ships and biofertilizer for regional agriculture.
• Antec Biofilm Plug Flow Reactor (proprietary anaerobic digestion technology) Antec's proprietary anaerobic digestion technology combining large-surface permanent bacterial biofilm (biofilm) with continuous plug flow. Controlled pre-treatment and feed enable homogeneous and stable operating conditions across separate digestion phases, producing reduced retention times, higher organic loading capacity, and higher yields than conventional anaerobic digestion. Prefabricated and modular for integration into existing plants and capacity scaling.

Quantifiable outcome

• Each plant processes 150,000 tonnes of biomass annually
• +3 more outcomes

Named customers1 record

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Two partnerships are on record, tiered core.

• GoodtechcoreImplementation/ SI/ Consulting Partner · 27 February 2026Goodtech, a Nordic system integrator, won an automation and control contract valued at NOK 15-20 million for Antec Biogas's Vest Biogass facility in Hornindal, Norway. The contract includes a process control system, emergency shutdown system, and asset performance management solution designed to provide scalable operational technology architecture supporting Antec's growth plans. Completion targeted for end of 2026.
• Salmars (Salmar)coreStrategic or Co-development PartnerSalmar, one of the world's largest salmon farming companies, is partnering with Antec for the Malm Biogass plant. The plant will be located next to Salmar's smolt facility in Malm and will process fish sludge and fish silage from Salmar's aquaculture operations, demonstrating a circular economy approach in the seafood industry.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Scandinavian Biogas: Swedish-Norwegian biogas producer operating anaerobic digestion plants that produce biomethane, bio-CO2, and biofertilizer from organic waste. Most direct peer: overlapping Nordic footprint, similar multi-product output mix, and competing for the same manure and food-waste feedstocks.
• Nature Energy: One of Europe's largest industrial-scale biogas producers running a network of anaerobic digestion plants under a BOO/developer model. Closely comparable on multi-site build-out, multi-product output (biomethane, fertilizer), and technology-driven AD operations.
• Gasum: Nordic energy company producing and distributing biogas and LNG, with anaerobic digestion plants and biomethane liquefaction assets. Comparable on Nordic focus, LBG/biomethane offtake into transport, and circular-economy positioning.
• Biokraft: Norwegian biogas and bio-LNG producer developing large-scale anaerobic digestion and liquefaction plants in Scandinavia. Direct peer in Norwegian market, overlapping feedstock categories, and competing on LBG supply to maritime and road transport.
• Xergi: Danish anaerobic digestion technology provider and plant operator delivering AD/biogas plants globally. Direct peer on AD technology licensing and BOO-style project delivery.
• HoSt Group: Dutch technology supplier and operator of biogas/AD plants, including biomethane liquefaction. Direct comparable on anaerobic digestion engineering, multi-feedstock plants, and RNG/LBG product offerings.
• EnviTec Biogas: German-listed developer and operator of biogas and biomethane plants. Direct peer in plant development and operations, multi-product output, and European commercial AD footprint.
• Weltec Biopower: German manufacturer of anaerobic digestion plants and operator of biogas facilities across Europe. Comparable on modular AD plant construction, multi-feedstock operations, and energy-plus-fertilizer revenue model.
• PlanET Biogas: German-Canadian AD plant developer and operator delivering turnkey biogas plants. Comparable on multi-feedstock AD technology, modular plant design, and BOO project delivery.

Others

• Salmar: One of the world's largest Atlantic salmon farmers and Antec's anchor partner at Malm Biogass. Not a competitor but a customer/feedstock supplier, included as a key counterparty that shapes Antec's commercial trajectory.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/antec-biogas

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Antec