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The following Product Service Codes (PSCs) are commonly associated with NAICS 561621, Security Systems Services (except Locksmiths)
Miscellaneous Alarm, Signal, and Security Detection Systems
Includes
Anti-intrusion Alarm Systems; Foghorns; Gongs; Chimes; Bells; Burglar Alarm Systems; Fire Alarms; Police Alarm Systems; Sounding Devices; Manual Gas Alarms; Landing Wands.
Excludes
Loran; Radar; Sonar; Engine Oil and Fuel Warning Devices; Aircraft Oxygen Warning Devices.
Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
334290 – Other Communications Equipment Manufacturing
335311 – Power, Distribution, and Specialty Transformer Manufacturing
334519 – Other Measuring and Controlling Device Manufacturing
334512 – Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
334220 – Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
541512 – Computer Systems Design Services
541519 – Other Computer Related Services
238210 – Electrical Contractors and Other Wiring Installation Contractors
Installation of Equipment—Alarm, Signal, and Security Detection Systems
Description
Installation of Equipment: Alarm, Signal, and Security Detection Systems
Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
334290 – Other Communications Equipment Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
541330 – Engineering Services
541519 – Other Computer Related Services
334512 – Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
Maint/Repair/Rebuild of Equipment—Alarm, Signal, and Security Detection Systems
Description
Maintenance, Repair and Rebuilding of Equipment: Alarm, Signal, and Security Detection Systems
Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
811210 – Electronic and Precision Equipment Repair and Maintenance
334290 – Other Communications Equipment Manufacturing
541519 – Other Computer Related Services
238210 – Electrical Contractors and Other Wiring Installation Contractors
561210 – Facilities Support Services
334512 – Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
541330 – Engineering Services
334519 – Other Measuring and Controlling Device Manufacturing
Communications Security Equipment and Components
Possible NAICS Codes
334290 – Other Communications Equipment Manufacturing
334220 – Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing
541519 – Other Computer Related Services
561621 – Security Systems Services (except Locksmiths)
334111 – Electronic Computer Manufacturing
811210 – Electronic and Precision Equipment Repair and Maintenance
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
334210 – Telephone Apparatus Manufacturing
541330 – Engineering Services
336413 – Other Aircraft Parts and Auxiliary Equipment Manufacturing
Maint/Repair/Rebuild of Equipment—Fire Control Equipment
Description
Maintenance, Repair and Rebuilding of Equipment: Fire Control Equipment
Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
238220 – Plumbing, Heating, and Air-Conditioning Contractors
922160 – Fire Protection
561210 – Facilities Support Services
811210 – Electronic and Precision Equipment Repair and Maintenance
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
238990 – All Other Specialty Trade Contractors
236220 – Commercial and Institutional Building Construction
Housekeeping—Fire Protection
Description
Fire Protection Services
Possible NAICS Codes
561210 – Facilities Support Services
561621 – Security Systems Services (except Locksmiths)
922160 – Fire Protection
561990 – All Other Support Services
562998 – All Other Miscellaneous Waste Management Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238210 – Electrical Contractors and Other Wiring Installation Contractors
561790 – Other Services to Buildings and Dwellings
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
238990 – All Other Specialty Trade Contractors
Support—Professional: Physical Security and Badging
Possible NAICS Codes
561612 – Security Guards and Patrol Services
561621 – Security Systems Services (except Locksmiths)
922120 – Police Protection
561210 – Facilities Support Services
561611 – Investigation and Personal Background Check Services
334290 – Other Communications Equipment Manufacturing
541990 – All Other Professional, Scientific, and Technical Services
238210 – Electrical Contractors and Other Wiring Installation Contractors
541519 – Other Computer Related Services
541330 – Engineering Services
Maint/Repair/Rebuild of Equip- Fire Fighting/Rescue/Safety Equip; Environ Protect Equip/Matls
Description
Maintenance, Repair and Rebuilding of Equipment: Fire Fighting, Rescue, and Safety Equipment; and Environmental Protection Equipment and Materials
Possible NAICS Codes
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
811111 – General Automotive Repair
561621 – Security Systems Services (except Locksmiths)
561990 – All Other Support Services
561210 – Facilities Support Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
922160 – Fire Protection
811210 – Electronic and Precision Equipment Repair and Maintenance
811114 – Specialized Automotive Repair
811198 – All Other Automotive Repair and Maintenance
Support—Professional: Other
Description
Other Professional Services
Possible NAICS Codes
493190 – Other Warehousing and Storage
541611 – Administrative Management and General Management Consulting Services
541990 – All Other Professional, Scientific, and Technical Services
721110 – Hotels (except Casino Hotels) and Motels
711510 – Independent Artists, Writers, and Performers
541330 – Engineering Services
541690 – Other Scientific and Technical Consulting Services
611430 – Professional and Management Development Training
541519 – Other Computer Related Services
561320 – Temporary Help Services
Inspection—Alarm, Signal, and Security Detection Systems
Description
Inspection and Laboratory Services (except medical/dental): Alarm, Signal, and Security Detection Systems
Includes
Includes: Commercial Testing and Laboratory Services
Excludes
Excludes: Medical and Dental Laboratory Services
Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
238210 – Electrical Contractors and Other Wiring Installation Contractors
541350 – Building Inspection Services
334290 – Other Communications Equipment Manufacturing
238990 – All Other Specialty Trade Contractors
922160 – Fire Protection
238220 – Plumbing, Heating, and Air-Conditioning Contractors
811210 – Electronic and Precision Equipment Repair and Maintenance
561612 – Security Guards and Patrol Services
561210 – Facilities Support Services
Housekeeping—Surveillance
Description
Surveillance Services
Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
541940 – Veterinary Services
561612 – Security Guards and Patrol Services
561210 – Facilities Support Services
922120 – Police Protection
334290 – Other Communications Equipment Manufacturing
517111 – Wired Telecommunications Carriers
517122 – Agents for Wireless Telecommunications Services
517112 – Wireless Telecommunications Carriers (except Satellite)
921190 – Other General Government Support
IT and Telecom—End User: Help Desk; Tier1-2, Workspace, Print, Productivity Tools (Labor)
Description
Support services for end user client computing including Tier 1 and 2 help/service desk, deskside support, adds/moves/changes, workspace technical support, audio/video (A/V, VTC) conferencing, and printer support. A/V and VTC includes support services typically used in conference rooms and dedicated telepresence rooms to enable workforce communications. Printer support includes Managed Print Services (MPS) for multifunction printers (print, scan, fax, copy).
Excludes
Mobile device support.
Possible NAICS Codes
811210 – Electronic and Precision Equipment Repair and Maintenance
541519 – Other Computer Related Services
561210 – Facilities Support Services
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
541330 – Engineering Services
334111 – Electronic Computer Manufacturing
513210 – Software Publishers
238290 – Other Building Equipment Contractors
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
541512 – Computer Systems Design Services
Inspection—Fire Control Equipment
Description
Inspection and Laboratory Services (except medical/dental): Fire Control Equipment
Includes
Includes: Commercial Testing and Laboratory Services
Excludes
Excludes: Medical and Dental Laboratory Services
Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
922160 – Fire Protection
541990 – All Other Professional, Scientific, and Technical Services
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
561210 – Facilities Support Services
541350 – Building Inspection Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238990 – All Other Specialty Trade Contractors
236220 – Commercial and Institutional Building Construction
238210 – Electrical Contractors and Other Wiring Installation Contractors
Quality Control—Alarm, Signal, and Security Detection Systems
Description
Quality Control Services: Alarm, Signal, and Security Detection Systems
Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
238210 – Electrical Contractors and Other Wiring Installation Contractors
334512 – Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
334290 – Other Communications Equipment Manufacturing
561612 – Security Guards and Patrol Services
561210 – Facilities Support Services
334519 – Other Measuring and Controlling Device Manufacturing
541330 – Engineering Services
334111 – Electronic Computer Manufacturing
Modification of Equipment—Alarm, Signal, and Security Detection Systems
Description
Modification of Equipment: Alarm, Signal, and Security Detection Systems
Possible NAICS Codes
561621 – Security Systems Services (except Locksmiths)
334290 – Other Communications Equipment Manufacturing
238210 – Electrical Contractors and Other Wiring Installation Contractors
561210 – Facilities Support Services
334517 – Irradiation Apparatus Manufacturing
334512 – Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
334511 – Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
236220 – Commercial and Institutional Building Construction
541511 – Custom Computer Programming Services
332999 – All Other Miscellaneous Fabricated Metal Product Manufacturing