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About Ammongas
Company overview
Ammongas A/S, a privately held company owned by European Energy A/S
Sborg, Denmark
2002
11-50 employees (LinkedIn size band) (source: linkedin.com)
What they do
Ammongas is a Danish engineering and environmental-technology company specialising in the design, supply, commissioning, and servicing of industrial gas-treatment systems. Its principal expertise lies in amine-based biogas upgrading, carbon capture, CO9 purification and liquefaction, ammonia removal, odor control, and industrial-emission treatment, focusing on industrial and infrastructure clients rather than renewable electricity generation (source: linkedin.com). The companys core biogas-upgrading process treats raw biogas to produce biomethane suitable for injection into gas grids or use as fuel, combining high methane recovery with low methane losses and low electricity consumption (source: linkedin.com). Ammongas also develops carbon capture and liquid-CO9 systems, providing technology implementation, optimisation, front-end engineering design, project execution, and operational support (source: linkedin.com). Its ammonia treatment technology recovers ammonia from contaminated air and water, while its environmental portfolio addresses odor and industrial emissions (source: linkedin.com). The company serves biogas producers, waste-treatment operators, wastewater and manure-treatment facilities, industrial manufacturers, gas-grid stakeholders, and developers of e-fuels and Power-to-X projects, leveraging a specialised process platform with decades of reliable operation in Scandinavia (source: uabio.org).
Projects & track record
Ammongas has completed nearly 80 projects worldwide, predominantly biogas-upgrading plants, with a service portfolio covering 35 biogas plants across Denmark, Germany, Finland, Norway, the United States, and Sweden as of 2025 (source: uabio.org). These plants collectively produced 425 million Nm3 of biomethane during 2025 (source: uabio.org). A notable project is the CO9-liquefaction plant commissioned in 2025 at the Tnder biogas facility in Denmark, with an annual capacity of 48,000 tonnes of CO9, supplying liquefied CO9 for e-fuel production at the Kass e-methanol plant owned by European Energy and Mitsui (source: uabio.org). More than half of the biomethane supplied to Denmarks national gas-transmission network originates from Ammongas plants (source: uabio.org). The companys international footprint includes ongoing engineering studies and contracts in Italy, Australia, Canada, Norway, the United States, and Denmark, with multiple projects entering implementation in 2026 (source: uabio.org).
Recent developments
The commissioning of the 48,000-tonnes-per-year Tnder CO9-liquefaction facility in 2025 marked a significant milestone, demonstrating an integrated chain from biogas upgrading to CO9 purification, liquefaction, and feedstock supply for e-methanol production (source: uabio.org). In 2025, Ammongas expanded its workforce by 12% and secured four major contracts in Denmark, Norway, and the United States, while also extending its international business through front-end engineering design work in Italy, Australia, and Canada (source: uabio.org). The company appointed Julius Jakobsen as a full-time Service Engineer in June 2025 after his prior support during studies, and also named a Head of Carbon Capture, Technology and Innovation to reflect growth in carbon-capture and liquid-CO9 activities (sources: linkedin.com, linkedin.com). In 2026, senior project-management expertise was recruited, including Martin Holm, to support the design of additional amine-upgrading plants internationally (source: linkedin.com).
Working there
Ammongas offers roles across process and mechanical engineering, project management, service engineering, commissioning, procurement, contract management, sales, research and development, carbon capture, and Power-to-X project development. Public profiles reveal positions such as Service Engineer, Senior Project Manager, Head of Procurement and Contract Management, Sales Manager, Head of Carbon Capture, and CEO (sources: linkedin.com, linkedin.com). The main workplace is the Søborg headquarters, hosting engineering, sales, project, service, procurement, and management functions, while international project delivery involves plant design, supplier coordination, commissioning, troubleshooting, and cross-border execution (sources: linkedin.com, linkedin.com). The company is a small, specialist organisation with close collaboration between technical and commercial teams, emphasising professional development and integration across sales, R&D, and market development (source: linkedin.com). While detailed benefits are not publicly documented, the company attracts talent through exposure to specialised gas-separation technology, international projects, carbon capture, CO9-liquefaction work, and the backing of European Energy (source: uabio.org).