TED - Tenders electronic daily
https://ted.europa.eu/

European Union Gateway
https://europa.eu/

European Parliament
https://www.europarl.europa.eu/

European Council
​​​​​​​https://www.consilium.europa.eu/

European Commission
​​​​​​​https://ec.europa.eu/commission/index_en

SME Portal
https://ec.europa.eu/info/funding-tenders/opportunities/portal/screen/home

Standardisation
​​​​​​​https://ec.europa.eu/growth/single-market/european-standards/policy_en

Better access to finance
​​​​​​​https://ec.europa.eu/growth/access-to-finance_en

Public Procurement
​​​​​​​https://ec.europa.eu/growth/single-market/public-procurement_en

Professional qualifications
​​​​​​​https://ec.europa.eu/growth/single-market/services/free-movement-professionals/qualifications-recognition_en

Database of European Union Law
https://eur-lex.europa.eu/

Monitoring of lawmaking procedures
​​​​​​​https://eur-lex.europa.eu/collection/legislative-procedures.html

European Committee of the Regions
​​​​​​​https://cor.europa.eu/en

European Economic and Social Committee
​​​​​​​https://www.eesc.europa.eu/en​​​​​​​

European Council of Civil Engineers (ECCE)
www.ecceengineers.eu 

European Federation of Engineering Consultancy Associations (EFCA):
http://www.efcanet.org/

International Federation of Consulting Engineers (FIDIC):
www.fidic.org

European Federation of National Engineering Associations (FEANI):
www.feani.org

European Society for Engineering Education (SEFI):
https://www.sefi.be/

Council of European Geodetic Surveyors (CLGE):
www.clge.eu/

Architect's Council of Europe (ACE):
https://www.ace-cae.eu/​​​​​​​