The European Investment Bank (ElB) is the long-term lending institution of the European Union, owned by its Member States. It finances sound investment contributing to EU policy objectives. EIB projects bolster competitiveness, drive innovation, promote sustainable development, enhance social and territorial cohesion, and support a just and swift transition to climate neutrality.

The European Investment Bank Group (EIB Group), consisting of the European Investment Bank (EIB) and the European Investment Fund (EIF), reported total financing signatures in Spain of €11.4 billion in 2023, approximately €6.8 billion of which went to climate action and environmental sustainability projects. Overall, the EIB Group signed €88 billion in new financing in 2023.