La Harpe - La Harpe, Illinois

The Ohio Environmental Protection Agency - Mobile Sources Field Office - Twinsburg, Ohio

Corrosion Prevention & Environmental Services - Columbia Station, Ohio

Ohio Environmental Protection Agency - Northeast District Office - Twinsburg, Ohio

Compliance Environmental Services - Hermitage, Pennsylvania

Clean Harbors ES Industrial Services, Inc - Clute, Texas

Environmental Specialty Services - Highland Park, Michigan

TGE Resources - Houston, Texas

Phoenix Environmental - Plymouth, Michigan

SpillTech Environmental, Inc. - Houston, Texas