Greenhouse gas emissions of companies in Denmark
1.1 Mt CO2e in 2025 from 28 EU ETS installations, aircraft and shipping companies registered in Denmark, run by 20 companies; 0.4 Mt of it covered by free allowances. Source: Arcadium Data, data as of .
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Largest operating companies
| Operating company | Installations | Emissions 2025 | Free allocation | Allowances to buy |
|---|---|---|---|---|
| Sunclass Airlines | 1 | 0.3 Mt | 70 kt | 0.3 Mt |
| ARGO I/S | 1 | 0.2 Mt | 31 kt | 0.1 Mt |
| COPENHAGEN AIRTAXI A/S | 1 | 49 kt | 7 kt | 42 kt |
| Ardagh Glass Holmegaard A/S | 1 | 45 kt | 37 kt | 8 kt |
| I/S Refa | 1 | 45 kt | 8 kt | 37 kt |
| Nordværk I/S | 1 | 39 kt | 8 kt | 31 kt |
| Daka Denmark A/S | 2 | 34 kt | 8 kt | 26 kt |
| Dansk Salt A/S | 1 | 21 kt | 51 kt | none |
| DTU Kraftvarmeværk ApS | 1 | 19 kt | 1 kt | 17 kt |
| I/S Vestforbrænding | 4 | 15 kt | 48 kt | none |
| KARUP KARTOFFELMELFABRIK A.M.B.A. | 1 | 14 kt | 9 kt | 5 kt |
| Farum Fjernvarme A M B A | 2 | 8 kt | 2 kt | 7 kt |
| E.ON Produktion Danmark A/S | 1 | 5 kt | 1 kt | 4 kt |
| DUFERCO DANISH STEEL A/S | 1 | 4 kt | 8 kt | none |
| Aulum fjernvarme Amba | 1 | 3 kt | 1 kt | 2 kt |
| Air Greenland A/S | 1 | 2 kt | 0 kt | 2 kt |
| SINDAL VARMEFORSYNING A M B A | 1 | 1 kt | 0 kt | 1 kt |
| Lem varmeværk | 1 | 0 kt | 1 kt | none |
| Maricogen A/S | 1 | 0 kt | ||
| FF SKAGEN A/S | 1 | 0 kt | 0 kt | 0 kt |
Largest installations
| Installation | Activity | Country | Operating company | Emissions 2025 |
|---|---|---|---|---|
| Sunclass Airlines | Aircraft operator activities | Denmark | Sunclass Airlines | 0.3 Mt |
| Aircraft operator activities | Aircraft operator activities | Denmark | 0.2 Mt | |
| ARGO Roskilde KraftVarmeVærk | Combustion of fuels | Denmark | ARGO I/S | 0.2 Mt |
| Aircraft operator activities | Aircraft operator activities | Denmark | 0.1 Mt | |
| COPENHAGEN AIRTAXI A/S | Aircraft operator activities | Denmark | COPENHAGEN AIRTAXI A/S | 49 kt |
| Ardagh Glass Holmegaard A/S | Manufacture of glass | Denmark | Ardagh Glass Holmegaard A/S | 45 kt |
| Affaldsforbrændingsanlæg I/S REFA | Combustion of fuels | Denmark | I/S Refa | 45 kt |
| AVV-Forbrændingsanlæg | Combustion of fuels | Denmark | Nordværk I/S | 39 kt |
| Aircraft operator activities | Aircraft operator activities | Denmark | 25 kt | |
| Daka Bio-industries Randers | Combustion of fuels | Denmark | Daka Denmark A/S | 25 kt |
| Akzo Nobel Salt A/S | Combustion of fuels | Denmark | Dansk Salt A/S | 21 kt |
| DTU Kraftvarmeværk | Combustion of fuels | Denmark | DTU Kraftvarmeværk ApS | 19 kt |
| Karup Kartoffelmelfabrik A.M.B.A. | Combustion of fuels | Denmark | KARUP KARTOFFELMELFABRIK A.M.B.A. | 14 kt |
| Daka Proteins Løsning | Combustion of fuels | Denmark | Daka Denmark A/S | 10 kt |
| I/S Vestforbrænding | Combustion of fuels | Denmark | I/S Vestforbrænding | 7 kt |
| Farum Fjernvarme, Rugmarkencentralen | Combustion of fuels | Denmark | Farum Fjernvarme A M B A | 6 kt |
| Frederikssund Kraftvarmeværk | Combustion of fuels | Denmark | E.ON Produktion Danmark A/S | 5 kt |
| Duferco Danish Steel | Combustion of fuels | Denmark | DUFERCO DANISH STEEL A/S | 4 kt |
| DTU Kedelcentral | Combustion of fuels | Denmark | I/S Vestforbrænding | 4 kt |
| Aulum Fjernvarme a.m.b.a, Kulvej 5 | Combustion of fuels | Denmark | Aulum fjernvarme Amba | 3 kt |
| Farum Fjernvarme, stavnsholtcentralen | Combustion of fuels | Denmark | Farum Fjernvarme A M B A | 2 kt |
| I/S Vestforbrænding | Combustion of fuels | Denmark | I/S Vestforbrænding | 2 kt |
| Hedegårdens varmecentral, I/S Vestforbrænding | Combustion of fuels | Denmark | I/S Vestforbrænding | 2 kt |
| Air Greenland A/S | Aircraft operator activities | Denmark | Air Greenland A/S | 2 kt |
| Sindal Varmeforsyning | Combustion of fuels | Denmark | SINDAL VARMEFORSYNING A M B A | 1 kt |
By sector
- Power and heat (21 installations)
- Aviation (6 installations)
Emissions are verified EU Emissions Trading System emissions in tonnes of CO2 equivalent for 2025: the installations, aircraft operators and shipping companies covered by the ETS, not a company's total footprint (no scope 2 or 3, no sites outside the ETS). Free allocation is the free allowances allocated for the same year; "allowances to buy" is emissions minus free allocation, the exposure that grows as free allocation is phased out under CBAM from 2026. Companies only: an account holder that is not a company is never shown. Data as of 2026-10-25, updated yearly.
Emissions and allocation: European Commission, Union Registry of the EU ETS (verified emissions, free allocation, compliance and the list of operators; Commission reuse policy, CC BY 4.0). Parent company and pollutant releases of facilities: European Environment Agency, Industrial Emissions Portal (CC BY 4.0). Legal-entity identifiers: GLEIF (CC0).
Questions
Where does this data come from?
The European Commission publishes verified emissions, free allocation and compliance of every installation in the EU Emissions Trading System, and the list of operators with company registration number and LEI. We join them to the operating company, its website and its ultimate parent, and record changes each year.
Is this a full carbon footprint?
No. It covers emissions that fall under the EU ETS (power and heat, heavy industry, aviation within Europe, shipping). It has no scope 2 or scope 3 emissions and no sites outside the ETS.
Does the list show private persons?
No. Operators are shown only when they are companies. Account holders that could be natural persons are left out, and the data has no addresses or contact details.
Cite as: Arcadium Data, "Greenhouse gas emissions of companies in Denmark: 1.1 Mt in 2025", https://arcadiumdata.io/emissions/dk/, data as of 2026-10-25.