BTIS - Business and Technology Information Service (Ireland)
http://www.btis.ie/

CSSINFO
http://www.cssinfo.com/

Document Center
http://www.document-center.com

DECO
http://www.doceng.com/

IHS Engineering Products
http://www.ihs.com/

Linda Hall Library Document Services
http://www.lhl.lib.mo.us/docserv

Rice University Library
http://riceinfo.rice.edu/Fondren/RICE/

Teltech
http://www.teltech.com