236116 - New Multifamily Housing Construction (except Operative Builders)
236117 - New Housing Operative Builders
236118 - Residential Remodelers
236210 - Industrial Building Construction
236220 - Commercial and Institutional Building Construction
237310 - Highway, Street, and Bridge Construction
237990 - Other Heavy and Civil Engineering Construction
238110 - Poured Concrete Foundation and Structure Contractors
238160 - Roofing Contractors
238210 - Electrical Contractors and Other Wiring Installation Contractors
238910 - Site Preparation Contractors
531110 - Lessors of Residential Buildings and Dwellings
531120 - Lessors of Nonresidential Buildings (except Miniwarehouses)
531190 - Lessors of Other Real Estate Property
531210 - Offices of Real Estate Agents and Brokers
531312 - Nonresidential Property Managers
531390 - Other Activities Related to Real Estate
541310 - Architectural Services
541320 - Landscape Architectural Services
541330 - Engineering Services
541410 - Interior Design Services
541620 - Environmental Consulting Services
561210 - Facilities Support Services
924110 - Administration of Air and Water Resource and Solid Waste Management Programs
925110 - Administration of Housing Programs
925120 - Administration of Urban Planning and Community and Rural Development

1521 - SINGLE-FAMILY HOUSING CONSTRUCTION
1522 - RESIDENTIAL CONSTRUCTION, NEC
1531 - OPERATIVE BUILDERS
1541 - INDUSTRIAL BUILDINGS AND WAREHOUSES
1542 - NONRESIDENTIAL CONSTRUCTION, NEC
1622 - BRIDGE, TUNNEL, & ELEVATED HIGHWAY
1629 - HEAVY CONSTRUCTION, NEC
1711 - PLUMBING, HEATING, AIR-CONDITIONING
1771 - CONCRETE WORK
7382 - SECURITY SYSTEMS SERVICES
8712 - ARCHITECTURAL SERVICES
8741 - MANAGEMENT SERVICES
8744 - FACILITIES SUPPORT SERVICES
9511 - AIR, WATER, & SOLID WASTE MANAGEMEN
9531 - HOUSING PROGRAMS
9532 - URBAN AND COMMUNITY DEVELOPMENT