Co-operation with national organisations for civil engineers
RIL has a close co-operation with corresponding foreign organisations. The exchange of information in matters important for the professionals is continuous.
- ASCE, American Society of Civil Engineers
- JSCE, Japan Society of Civil Engineers
- ICE, Institution of Civil Engineers, Iso-Britannia
- SVR, Svenska Väg- och Vattenbyggares Riksförbund
- NIF, Norske Sivilingeniørers Forening
- IDA, Ingeniørforeningen i Danmark
- EEL, Eesti Ehitusinseneride Liit, Estonia
- LBS, Latvijas Buvinzenieru Savieniba
- LSIS, Lietuvos Statybos Inzinieriu Sajunga
- RSCE, Russian Society of Civil Engineers