541330 – Engineering Services
541340 – Drafting Services
541350 – Building Inspection Services
541370 – Surveying and Mapping (except Geophysical) Services
541513 – Computer Facilities Management Services
541519 – Other Computer Related Services
541611 – Administrative Management and General Management Consulting Services
541613 – Marketing Consulting Services
541614 – Process, Physical Distribution, and Logistics Consulting Services
541618 – Other Management Consulting Services
541690 – Other Scientific and Technical Consulting Services
541990 – All Other Professional, Scientific, Technical Services
541620 – Environmental Consulting Services
561210 – Facilities Support Services
561730 – Landscaping Services
561790 – Other Services to Buildings and Dwellings
562111 – Solid Waste Collection
562112 – Hazardous Waste Collection
562119 – Other Waste Collection
562219 – Other Nonhazardous Waste Treatment and Disposal
562910 – Remediation Services
562991 – Septic Tank and Related Services
562998 – All Other Miscellaneous Waste Management Services
926110 – Administration of General Economic Programs
926130 – Regulation and Administration of Communications, Electric, Gas, and Other Utilities