Airlines
+ Continental Airlines
+ Eastern Airlines
+ System One Learning Systems

Automotive
+ Friedkin Business Services
+ Gulf States Toyota

Oil & Gas (Upstream)
+ BP Americas

Petrochemical/Oil & Gas (Downstream)
+ Rohm & Haas Chemical, Inc.
+ ENRON Corporation
+ CITGO Petroleum Corporation
+ Jacobs Engineering Group
+ Pennzoil Corporation

Call Centers
+ GetronicsWang
+ Gulf States Financial Services

Commercial Housekeeping
+ SSC Service Solutions

Government
+ Houston Airport System