Utilities: power generation, electrical distribution, gas distribution, water, sewer.
Mass Transit: subway, bus, commuter rail.
Manufacturing Industry: electrical equipment manufacturers, aerospace, cosmetic, petro chemical, food, drug, machinery manufacturers, truck builders, light assembly, hardware manufacturers.
Construction Industry: general contractors, mechanical contractors, electrical contractors, plumbing contractors, HVAC contractors.
Municipalities: department of environmental protection, department of sanitation, department of transportation.
Food Processing & Pharmaceutical: meat processing, packaged foods, beverages, health & beauty products, medicines.