237110

Water and Sewer Line and Related Structures Construction

237120

Oil and Gas Pipeline and Related Structures Construction

541310

Architectural Services

541330

Engineering Services
General $15.00m Small Business Size Standard: [Yes]
Special $38.50m Military and Aerospace Equipment and Military Weapons: [Yes]
Special $38.50m Contracts and Subcontracts for Engineering Services Awarded Under the National Energy Policy Act of 1992: [Yes]
Special $38.50m Marine Engineering and Naval Architecture: [Yes] ⁽⁴⁾

541350

Building Inspection Services

541611

Administrative Management and General Management Consulting Services

541990

All Other Professional, Scientific, and Technical Services