Companies

• GYH

• Gantec Equipment Co.

• Garland Commercial Ranges Ltd.

• Gatter & Diehl, Inc.

• General Filters

• General Resource Corp.

• Goltz & Goltz Service, Inc.

• Gregg Industrial Insulators, Inc.

• HEMCO corp.

• HEPA Corporation

• Halco Products Co. Div.

• Halton Company

• Hankison International

• Hartzell Fan

• HealthWay Products Co.

• Heat Controller, Inc.

• Heat Transfer Systems, Inc.

• Heil Process Equipment

• Henderson Barwick Inc.

• Homeland Vinyl Fence Ltd.

• Houck Specialty Contractors

• Howden Buffalo

• Hoyt Corporation

• Hydro-Air of Minnesota

• IDEA Design/Build

• Industrial Metal Craft