NAICS #23812 | This industry comprises establishments primarily engaged in: (1) erecting and assembling structural parts made from steel or precast concrete (e.g., steel beams, structural steel components, and similar products of precast concrete); and/or (2) assembling and installing other steel construction products (e.g., steel rods, bars, rebar, mesh, and cages) to reinforce poured-in-place concrete. The work performed may include new work, additions, alterations, maintenance, and repairs. Establishments primarily engaged in pouring concrete at the construction site for building foundations or structural elements are classified in Industry 238110, Poured Concrete Foundation and Structure Contractors.
NAICS #23899 | This industry comprises establishments primarily engaged in specialized trades (except foundation, structure, and building exterior contractors; building equipment contractors; building finishing contractors; and site preparation contractors). The specialty trade work performed includes new work, additions, alterations, maintenance, and repairs. Foundation, structure, and building exterior work--are classified in Industry Group 2381, Foundation, Structure, and Building Exterior Contractors; Installing, repairing, or maintaining building mechanical systems--are classified in Industry Group 2382, Building Equipment Contractors; Finishing buildings--are classified in Industry Group 2383, Building Finishing Contractors; Paving public highways, streets, and roads--are classified in Industry 237310, Highway, Street, and Bridge Construction; Construction equipment rental with an operator (except cranes) or preparing land for building construction--are classified in Industry 238910, Site Preparation Contractors; Construction equipment rental without an operator--are classified in U.S. Industry 532412, Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing; Radon testing--are classified in Industry 541380, Testing Laboratories; Power washing and other building exterior cleaning (except sandblasting)--are classified in Industry 561790, Other Services to Buildings and Dwellings; and Environmental remediation work, such as asbestos abatement--are classified in Industry 562910, Remediation Services.
NAICS #325 | The Chemical Manufacturing subsector is based on the transformation of organic and inorganic raw materials by a chemical process and the formulation of products. This subsector distinguishes the production of basic chemicals that comprise the first industry group from the production of intermediate and end products produced by further processing of basic chemicals that make up the remaining industry groups.
This subsector does not include all industries transforming raw materials by a chemical process. It is common for some chemical processing to occur during mining operations. These beneficiating operations, such as copper concentrating, are classified in Sector 21, Mining. Furthermore, the refining of crude petroleum is included in Subsector 324, Petroleum and Coal Products Manufacturing. In addition, the manufacturing of aluminum oxide is included in Subsector 331, Primary Metal Manufacturing; and beverage distilleries are classified in Subsector 312, Beverage and Tobacco Product Manufacturing. As in the case of these two activities, the grouping of industries into subsectors may take into account the association of the activities performed with other activities in the subsector.
NAICS #332312 | This U.S. industry comprises establishments primarily engaged in fabricating structural metal products, such as concrete reinforcing bars and fabricated bar joists. Manufacturing metal windows and doors--are classified in U.S. Industry 332321, Metal Window and Door Manufacturing; Manufacturing metal studs--are classified in U.S. Industry 332322, Sheet Metal Work Manufacturing; Constructing buildings, bridges, and other heavy construction projects on site--are classified in Sector 23, Construction; Building ships, boats and barges--are classified in Industry 33661, Ship and Boat Building; and Prefabricating metal buildings, panels, and sections--are classified in U.S. Industry 332311, Prefabricated Metal Building and Component Manufacturing.
NAICS #33241 | This industry comprises establishments primarily engaged in manufacturing power boilers and heat exchangers. Establishments in this industry may perform installation in addition to manufacturing power boilers and heat exchangers. Manufacturing heavy gauge metal tanks--are classified in Industry 332420, Metal Tank (Heavy Gauge) Manufacturing; Manufacturing steam or hot water low pressure heating boilers--are classified in U.S. Industry 333414, Heating Equipment (except Warm Air Furnaces) Manufacturing; and Installing power boilers and heat exchanges without manufacturing--are classified in Industry 238220, Plumbing, Heating, and Air-Conditioning Contractors.
NAICS #33242 | This industry comprises establishments primarily engaged in cutting, forming, and joining heavy gauge metal to manufacture tanks, vessels, and other containers. Manufacturing power boilers--are classified in Industry 332410, Power Boiler and Heat Exchanger Manufacturing; Manufacturing light gauge metal containers--are classified in Industry 33243, Metal Can, Box, and Other Metal Container (Light Gauge) Manufacturing; and Installing heavy gauge metal tanks without manufacturing--are classified in Industry 238120, Structural Steel and Precast Concrete Contractors.
NAICS #333923 | This U.S. industry comprises establishments primarily engaged in manufacturing overhead traveling cranes, hoists, and monorail systems. Manufacturing construction-type cranes--are classified in Industry 333120, Construction Machinery Manufacturing; Manufacturing aircraft loading hoists--are classified in U.S. Industry 333924, Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing; and Manufacturing power transmission pulleys--are classified in U.S. Industry 333613, Mechanical Power Transmission Equipment Manufacturing.
NAICS #33612 | This industry comprises establishments primarily engaged in (1) manufacturing heavy duty truck chassis and assembling complete heavy duty trucks, buses, heavy duty motor homes, and other special purpose heavy duty motor vehicles for highway use or (2) manufacturing heavy duty truck chassis only. Manufacturing truck and bus bodies and assembling vehicles on a purchased chassis--are classified in U.S. Industry 336211, Motor Vehicle Body Manufacturing; Manufacturing motor homes on purchased chassis--are classified in U.S. Industry 336213, Motor Home Manufacturing; Manufacturing vans, minivans, and light trucks--are classified in U.S. Industry 336112, Light Truck and Utility Vehicle Manufacturing; Manufacturing military armored vehicles--are classified in U.S. Industry 336992, Military Armored Vehicle, Tank, and Tank Component Manufacturing; and Manufacturing off highway construction equipment--are classified in Industry 333120, Construction Machinery Manufacturing.
NAICS #53112 | This industry comprises establishments primarily engaged in acting as lessors of buildings (except miniwarehouses and self-storage units) that are not used as residences or dwellings. Included in this industry are: (1) owner-lessors of nonresidential buildings; (2) establishments renting real estate and then acting as lessors in subleasing it to others; and (3) establishments providing full service office space, whether on a lease or service contract basis. The establishments in this industry may manage the property themselves or have another establishment manage it for them. Acting as lessors of buildings used as residences or dwellings--are classified in Industry 531110, Lessors of Residential Buildings and Dwellings; Renting or leasing space for self-storage--are classified in Industry 531130, Lessors of Miniwarehouses and Self-Storage Units; Managing nonresidential real estate for others--are classified in U.S. Industry 531312, Nonresidential Property Managers; Providing a range of office support services, such as mailbox rental, other postal and mailing (except direct mail advertising) services, document copying services, facsimile services, word processing services or on-site personal computer rental, that are not providing office space--are classified in Industry 56143, Business Service Centers; Managing and operating arenas, stadiums, theaters, or other related facilities and promoting and organizing performing arts productions, sports events, and similar events at those facilities--are classified in Industry 711310, Promoters of Performing Arts, Sports, and Similar Events with Facilities; and Operating public and contract general merchandise warehousing and storage facilities---are classified in Industry 493110, General Warehousing and Storage.
NAICS #8113 |