- Diversified Lighting Associates
 - Manufacturers' representative for commercial, industrial, emergency, residential, indoor, and outdoor lighting fixtures. - Hite Company
- Full line of industrial, residential, and commercial products.
- Keystone Contractors Marketplace
- Provides a search engine of Pennsylvania contractor web sites, industry news, legislative activity, and technical expertise.
- Pennsylvania Builders Association
- Riley Sales, Inc.
- Distributors of heating and air conditioning equipment, flexible hose & tubing, pre-fab chimney, insulation, power and hand tools, sheet metal fabrication machinery, air humidifiers and condensate fans and ventilation adhesives and sealants.
- Walter and Jackson, Inc.
- Source for building materials and commercial and industrial supplies.
- West Elizabeth Lumber Company
- Offers reloading, remanufacturing, and treating services. Also carries domestic and imported hardwoods.
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