Commercial Services

Backstage Library Works
Providing digitizing, retrospective conversion, cataloging, record upgrading in more than 100 languages, reclassification and related services, including complicated conversions and on-site scanning of irreplaceable source materials.
http://www.marclink.com/main.html

Cassidy Cataloguing Services
Offers cataloging services and consulting for law and business libraries.
http://www.cassidycat.com/

Special Libraries Cataloguing
Offers cataloguing services to special libraries, including corporate resource centers.
http://www.slc.bc.ca/