Custom Computer Programming Services, Administrative Management and General Management Consulting Services, Marketing Consulting Services, Process, Physical Distribution, and Logistics Consulting Services, Other Management Consulting Services

Data Processing, Hosting, and Related Services, Engineering Services, Administrative Management and General Management Consulting Services, Process, Physical Distribution, and Logistics Consulting Services, Environmental Consulting Services

Water Supply and Irrigation Systems, Engineering Services, Administrative Management and General Management Consulting Services, Human Resources and Executive Search Consulting Services, Marketing Consulting Services

KELLOGG BROWN & ROOT SERVICES, INC

Engineering Services, Environmental Consulting Services, Remediation Services, Administration of Air and Water Resource and Solid Waste Management Programs

Optical Instrument and Lens Manufacturing, Other Communications Equipment Manufacturing, Audio and Video Equipment Manufacturing, Semiconductor and Related Device Manufacturing, Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufactur

SAPEC-ECO

Support Activities for Oil and Gas Operations, Software Publishers, Data Processing, Hosting, and Related Services, All Other Information Services, Engineering Services

Other Electric Power Generation, Water Supply and Irrigation Systems, Steam and Air-Conditioning Supply, Site Preparation Contractors, All Other Specialty Trade Contractors

Environmental Consulting Services, Administration of Air and Water Resource and Solid Waste Management Programs

Administrative Management and General Management Consulting Services, Human Resources and Executive Search Consulting Services, Process, Physical Distribution, and Logistics Consulting Services, Administration of Conservation Programs

Water Supply and Irrigation Systems, Sewage Treatment Facilities, New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), New Housing Operative Builders

All Other Specialty Trade Contractors, Architectural Services, Landscape Architectural Services, Engineering Services, Drafting Services

Water Supply and Irrigation Systems, Steam and Air-Conditioning Supply, Water and Sewer Line and Related Structures Construction, Plumbing, Heating, and Air-Conditioning Contractors, Sheet Metal Work Manufacturing

Surgical Appliance and Supplies Manufacturing, Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers, Environmental Consulting Services, Exterminating and Pest Control Services, Janitorial Services

Water Supply and Irrigation Systems, Sewage Treatment Facilities, New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), Industrial Building Construction

Anthracite Mining, All Other Miscellaneous Chemical Product and Preparation Manufacturing, Environmental Consulting Services, Remediation Services, Administration of Air and Water Resource and Solid Waste Management Programs

RV (Recreational Vehicle) Parks and Campgrounds, Administration of Conservation Programs

Medical, Dental, and Hospital Equipment and Supplies Merchant Wholesalers, Other Professional Equipment and Supplies Merchant Wholesalers, All Other Health and Personal Care Stores, Home Health Equipment Rental, Engineering Services

Support Activities for Oil and Gas Operations, Support Activities for Coal Mining, Engineering Services, Environmental Consulting Services, Remediation Services