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Ownership Links and Enhanced EUTL Dataset Project

In the European Union Emission Trading Scheme (EU ETS), information regarding obligated installations, their respective account holders, compliance and transaction data are stored within the European Transaction Log (EUTL). This data is administered and published at the account level. However, limited and/or incomplete information is provided on the associated firms and sectors.

When analysing the data, it is essential to establish links between these EU ETS accounts and parent companies since they are ultimately responsible for the allowance trade these accounts are involved with. In order to increase the scope of research on the EU ETS, several researchers immersed themselves in linking and aggregating EU ETS accounts to obtain EU ETS compliance and transactions data at the company-level. To avoid further duplication of effort by other researchers but also to allow for cross-checking of these EU ETS account linkages, we decided to make the database publicly available. Supported by the European Commission (DG Climate Action), the latest version of this database,  The Ownership Links and Enhanced EUTL Dataset  , is hosted by the European University Institute (EUI). Possible future updates may also be found here.

The Ownership Links and Enhanced EUTL Dataset provides detailed information on the matching of Person Holding Accounts (PHAs) and Operator Holding Accounts (OHAs) with the companies that own them. We matched the  current information on EU ETS account holders to  historical  information on parent companies, for both groups of these EU ETS accounts. On this website a technical note is provided with a detailed explanation of the matching procedure and the contents of the dataset.

This dataset is the result of a cooperation of several European institutions of higher learning and research-focused non-university entities. The project has been coordinated at the European University Institute, with collaborators based at Umeå University, University of Groningen, University of Graz, DIW Berlin, the London School of Economics and Political Science, Université Paris-Dauphine, CDC Climat and Sandbag. The project has also received crucial support by the European Commission, DG Climate Action.


EUTL Dataset Project

We gratefully acknowledge permission by Bureau van Dijk to use and publish historical firm ownership data and the associated identification codes.

We also warmly thank Oliver Sartor for his contribution to this process, as well as Thomas Bourke for his invaluable support. Finally, we thank Denny Ellerman for his inspiration, guidance and support during all stages of this project.


Download the Ownership Links and Enhanced EUTL Dataset

Download the technical note 



Jurate_Jaraite Climate


 Jurate Jaraite
 Umeå University, Centre for Environmental and Resource Economics


Thijs Jong Climate


Thijs Jong 
University of Groningen, Department of Law and Economics


Andrius Kažukauskas Climate

Andrius Kažukauskas
Umeå University, Centre for Environmental and Resource Economics


Aleksandar Zaklan


Aleksandar ZaklanProject Coordinator
DIW Berlin


Alexander Zeitlberger Climate


Alexander Zeitlberger
Karl-Franzens University of Graz, Department of Finance

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