NORTHERN PURCHASE SERVICES, LLC

Water Supply and Irrigation Systems

Establishments in this category are primarly engaged in operating water treatment plants and/or operating water supply systems. The water supply system may include pumping stations, aqueducts, and/or distribution mains. The water may be used for drinking, irrigation, or other uses.

Electrical Contractors and Other Wiring Installation Contractors

Establishments in this category are primarly engaged in installing and servicing electrical wiring and equipment. Contractors included in this industry may include both the parts and labor when performing work. These contractors may perform new work, additions, alterations, maintenance, and repairs.

Illustrative Examples:

Airport runway lighting contractors
Fiber optic cable (except transmission line) contractors
Alarm system (e.g., fire, burglar), electric, installation only
Highway, street, and bridge lighting and electrical signal installation
Audio equipment (except automotive) installation contractors
Home automation system installation
Lighting system installation
Cable television hookup contractors
Telecommunications equipment and wiring (except transmission line) installation contractors
Computer and network cable installation
Traffic signal installation
Environmental control system installation
Cable splicing, electrical or fiber optic

Plumbing, Heating, and Air-Conditioning Contractors

Establishments in this category are primarly engaged in installing and servicing plumbing, heating, and air-conditioning equipment. Contractors in this industry may provide both parts and labor when performing work. The work performed may include new work, additions, alterations, maintenance, and repairs.

Illustrative Examples:

Cooling tower installation
Heating, ventilation, and air-conditioning (HVAC) contractors
Duct work (e.g., cooling, dust collection, exhaust, heating, ventilation) installation
Lawn sprinkler system installation
Fire sprinkler system installation
Mechanical contractors
Fireplace, natural gas, installation
Refrigeration system (e.g., commercial, industrial, scientific) installation
Furnace installation
Sewer hookup and connection, building

Other Building Equipment Contractors

Establishments in this category are primarly engaged in installing or servicing building equipment (except electrical, plumbing, heating, cooling, or ventilation equipment). The repair and maintenance of miscellaneous building equipment is included in this industry. The work performed may include new work, additions, alterations, maintenance, and repairs.

Illustrative Examples:

Automated and revolving door installation
Lightning protection equipment (e.g., lightning rod) installation
Boiler and pipe insulation installation
Machine rigging
Commercial-type door installation
Millwrights
Conveyor system installation
Revolving door installation
Overhead door, commercial- or industrial-type, installation
Dismantling large-scale machinery and equipment
Elevator installation
Satellite dish, household-type, installation
Escalator installation
Vacuum cleaning system, built-in, installation
Gasoline pump, service station, installation

All Other Specialty Trade Contractors

Establishments in this category are primarly 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.

Illustrative Examples:

Billboard erection
Outdoor swimming pool construction
Paver, brick (e.g., driveway, patio, sidewalk), installation
Crane rental with operator
Paving, residential and commercial driveway and parking lot
Sandblasting building exteriors
Fence installation
Scaffold erecting and dismantling
Interlocking brick and block installation
Steeplejack work
Manufactured (mobile) home set up and tie-down work
Driveway paving or sealing

Industrial Gas Manufacturing

Establishments in this category are primarly engaged in manufacturing industrial organic and inorganic gases in compressed, liquid, and solid forms.

Nitrogenous Fertilizer Manufacturing

This includes establishments primarily engaged in one or more of the following: (1) manufacturing nitrogenous fertilizer materials; (2) manufacturing fertilizers from sewage or animal waste; and (3) manufacturing nitrogenous materials and mixing with other ingredients into fertilizers.

Other Metal Valve and Pipe Fitting Manufacturing

This includes establishments primarily engaged in manufacturing metal valves (except industrial valves, fluid power valves, fluid power hose fittings, and plumbing fixture fittings and trim).

Illustrative Examples:

Aerosol valves manufacturing
Firefighting nozzles manufacturing
Lawn hose nozzles manufacturing
Lawn sprinklers manufacturing
Water traps manufacturing
Metal hose couplings (except fluid power) manufacturing
Metal pipe flanges and flange unions manufacturing
Plumbing and heating inline valves (e.g., check, cutoff, stop) manufacturing

All Other Miscellaneous Fabricated Metal Product Manufacturing

This includes establishments primarily engaged in manufacturing fabricated metal products (except forgings and stampings, cutlery and handtools, architectural and structural metals, boilers, tanks, shipping containers, hardware, spring and wire products, machine shop products, turned products, screws, nuts and bolts, metal valves, ball and roller bearings, ammunition, small arms and other ordnances and accessories, and fabricated pipes and pipe fittings).

Illustrative Examples:

Foil containers (except bags) manufacturing
Industrial pattern manufacturing
Metal hair curlers manufacturing
Metal ironing boards manufacturing
Metal pallets manufacturing
Metal pipe hangers and supports manufacturing
Metal safes manufacturing
Metal vaults (except burial) manufacturing
Permanent metallic magnets manufacturing
Portable metal ladders manufacturing
Sanitary ware (e.g., bathtubs, lavatories, sinks), metal and enameled metal, manufacturing
Steel wool manufacturing

Lawn and Garden Tractor and Home Lawn and Garden Equipment Manufacturing

This includes establishments primarily engaged in manufacturing powered lawnmowers, lawn and garden tractors, and other home lawn and garden equipment, such as tillers, shredders, yard vacuums, and leaf blowers.

Commercial and Service Industry Machinery Manufacturing

Establishments in this category are primarly engaged in manufacturing commercial and service industry machinery, such as optical instruments and lenses (except ophthalmic), photographic and photocopying equipment, automatic vending machinery, commercial laundry and drycleaning machinery, office machinery, automotive maintenance equipment (except mechanics' handtools), and commercial-type cooking equipment.

Measuring, Dispensing, and Other Pumping Equipment Manufacturing

This includes establishments primarily engaged in (1) manufacturing measuring and dispensing pumps, such as gasoline pumps and lubricating oil measuring and dispensing pumps and/or (2) manufacturing general purpose pumps and pumping equipment (except fluid power pumps and motors), such as reciprocating pumps, turbine pumps, centrifugal pumps, rotary pumps, diaphragm pumps, domestic water system pumps, oil well and oil field pumps, and sump pumps.

Electromedical and Electrotherapeutic Apparatus Manufacturing

This includes establishments primarily engaged in manufacturing electromedical and electrotherapeutic apparatus, such as magnetic resonance imaging equipment, medical ultrasound equipment, pacemakers, hearing aids, electrocardiographs, and electromedical endoscopic equipment.

Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing

This includes establishments primarily engaged in manufacturing search, detection, navigation, guidance, aeronautical, and nautical systems and instruments. Examples of products made by these establishments are aircraft instruments (except engine), flight recorders, navigational instruments and systems, radar systems and equipment, and sonar systems and equipment.

Analytical Laboratory Instrument Manufacturing

This includes establishments primarily engaged in manufacturing instruments and instrumentation systems for laboratory analysis of the chemical or physical composition or concentration of samples of solid, fluid, gaseous, or composite material.