All Other Professional, Scientific and Technical Services

Electric Bulk Power Transmission and Control

Commercial and Institutional Building Construction

Power and Communication Line and Related Structures Construction

Other Heavy and Civil Engineering ConstructionGeneral $39.50m Small Business Size Standard: [No]Special $32.50m Dredging and Surface Cleanup Activities: [No] (4)

Poured Concrete Foundation and Structure Contractors

Structural Steel and Precast Concrete Contractors

Other Foundation, Structure, and Building Exterior Contractors

Electrical Contractors and Other Wiring Installation Contractors

Plumbing, Heating, and Air?Conditioning Contractors

All Other Specialty Trade ContractorsGeneral $16.50m Small Business Size Standard: [No]Special $16.50m Building and Property Specialty Trade Services: [No] (4)

Ornamental and Architectural Metal Work Manufacturing

Other Communications Equipment Manufacturing

Other Aircraft Part and Auxiliary Equipment Manufacturing

General Line Grocery Merchant Wholesalers

Nonscheduled Chartered Passenger Air Transportation

General Freight Trucking, Long?Distance, Truckload

General Freight Trucking, Long?Distance, Less Than Truckload

Bus and Other Motor Vehicle Transit Systems

Wireless Telecommunications Carriers (except Satellite)

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services

Web Search Portals and All Other Information Services

Lessors of Residential Buildings and DwellingsGeneral $30.00m Small Business Size Standard: [No]Special $41.50m Leasing of Building Space to the Federal Government by Owners: [No] (4)

Lessors of Nonresidential Buildings (except Miniwarehouses)General $30.00m Small Business Size Standard: [No]Special $41.50m Leasing of Building Space to the Federal Government by Owners: [No] (4)

Lessors of Miniwarehouses and Self Storage UnitsGeneral $30.00m Small Business Size Standard: [No]Special $41.50m Leasing of Building Space to the Federal Government by Owners: [No] (4)

Lessors of Other Real Estate PropertyGeneral $30.00m Small Business Size Standard: [No]Special $41.50m Leasing of Building Space to the Federal Government by Owners: [No] (4)

Truck, Utility Trailer, and RV (Recreational Vehicle) Rental and Leasing

Engineering ServicesGeneral $22.50m Small Business Size Standard: [No]Special $41.50m Military and Aerospace Equipment and Military Weapons: [No]Special $41.50m Contracts and Subcontracts for Engineering Services Awarded Under the National Energy Policy Act of 1992: [No]Special $41.50m Marine Engineering and Naval Architecture: [No] (4)

Other Computer Related ServicesGeneral $30.00m Small Business Size Standard: [No]Special 150 Employees Information Technology Value Added Resellers: [No] (4)

Administrative Management and General Management Consulting Services

Process, Physical Distribution and Logistics Consulting Services

Other Scientific and Technical Consulting Services

Research and Development in Nanotechnology

Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) General 1000 Employees Small Business Size Standard: [No]Special 1500 Employees Aircraft, Aircraft Engine and Engine Parts: [Yes]Special 1250 Employees Other Aircraft Parts and Auxiliary Equipment: [No]Special 1250 Employees Guided Missiles and Space Vehicles, Their Propulsion Units and Propulsion Parts: [No] (4)

Marketing Research and Public Opinion Polling

Telemarketing Bureaus and Other contact Centers

Investigation and Personal Background Check Services

Other Services to Buildings and Dwellings

All Other Miscellaneous Waste Management Services

Professional and Management Development Training

Services for the Elderly and Persons with Disabilities

Code	Description	Primary
541990	All Other Professional, Scientific and Technical Services
221118	Other Electric Power Generation
221121	Electric Bulk Power Transmission and Control

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