All Ingeokring correspondence can be addressed to the Secretary (incl. address changes and changes in membership type) through the following address:
Delft University of Technology
Faculty of Civil Engineering and Geosciences, Geo-Engineering Section
P.O. Box 5048
2600 GA Delft
Existing members can also change their contact information and membership type through the online application form.
All payments (contribution, advertisements) should be made to the attention of "Penningmeester Ingeokring, Delft" at Postbank account no. P3342108 (IBAN: NL08 INGB 0003342108; BIC/SWIFT: INGBNL2A).