Private and Public Corporations
- Aerospace
- Agricultural
- Biomedical
- Building Materials
- Chemical Processing
- Construction Materials (Concrete, Asphalt, Roofing, etc.)
- Electrical Power Generation
- Film and TV Production
- Food Processing
- Hospitals/Care
- Legal Support
- Manufacturing
- Metal Processing
- Mining
- Petroleum Production and Refining
- Petroleum Storage and Pipelines
- Pharmaceutical
- Printing
- Recycling
- Retail Operations
- Semiconductor
- Solid Waste Management
Government and Special Districts
- Airports
- City Power Plants
- County & Municipality Water Agencies
- Federal, State, and Local Governments
- Gas & Electric Utilities
- Landfills
- Port Facilities
- Public Transportation
- Sanitation Districts
- School Districts
- Universities