- 541512 - Computer Systems Design Services
- 518210 - Data Processing, Hosting and Related Services
- 541511 - Custom Computer Programming Services
- 541513 - Computer Facilities Management Service
- 519130 - Internet Publishing Broadcasting and Web Search Portals
- 541330 - Engineering Services
- 561210 - Facilities Support Services
- 561110 - Office Administrative Services
- 611420 - Computer Training
- 34614 - Software, Other Prerecorded Compact Disc and Tape
- 611110 - Elementary and Secondary Schools
- 541519 - Other Computer Related Services
- 238220 Plumbing, Heating, and Air-Conditioning Contractors
- 238210 Electrical Contractors and Other Wiring Installation
- 236220 Commercial and Institutional Building Construction
- 562910 Remediation Services
- 562119 Other Waste Collection
- 562112 Hazardous Easte Collection
- 562111 Solid Waste Collection
- 238290 Other Building Equipment Contractors
- 238160 Roofing Contractors
- 238990 All Other Specialty Trade Contractors
- 561710 Exterminating and Pest Control Services
- 237110 Water and Sewer Line and Related Structures Construction
