BIB Berufsverband Information Bibliothek
Beuth Verlag GmbH – DIN Deutsches Institut für Normung e. V.
Commission for One-Person Librarians (OPL)
Eichmüller GmbH – Supply and furniture for libraries
Fleischmann Software Vertriebs GmbH – Developer of the library system LIBRARY
KVK Karlsruher Virtueller Katalog
Roldo Rent GmbH – Equipment for library removals
Wintzerith – Evaluation for cultural institutions
Zack Gateway – Search enginge for library databases
