NAICS Code 423490: Other Professional Equipment and Supplies Merchant Wholesalers

National industry

SBA small business size standard: 150 employees

Definition

This industry comprises establishments primarily engaged in the merchant wholesale distribution of professional equipment and supplies (except ophthalmic goods and medical, dental, and hospital equipment and supplies).

Government contracts for this work: PSC 5410 Prefabricated and Portable Buildings and PSC DA10 Application Software as a Service (SaaS)

Code facts

Contract awards
104 In the last 12 months
Contract obligations
$8,222,612 In FY2025

NAICS codes and definitions come from the U.S. Census Bureau, size standards from the SBA and contract spending from SAM.gov/FPDS.

Business activities under NAICS 423490

  • Analytical instruments (e.g., chromatographic, photometers, spectrographs) merchant wholesalers
  • Architect's equipment and supplies merchant wholesalers
  • Balances and scales, laboratory (except dental, medical), merchant wholesalers
  • Blackboards merchant wholesalers
  • Church supplies (except plated ware, silverware) merchant wholesalers
  • Drafting instruments merchant wholesalers
  • Drafting tables merchant wholesalers
  • Engineers' equipment and supplies merchant wholesalers
  • Instruments, professional and scientific, merchant wholesalers
  • Laboratory equipment (except dental, medical, ophthalmic) merchant wholesalers
  • Professional equipment and supplies (except dental, medical, ophthalmic) merchant wholesalers
  • Professional instruments merchant wholesalers
  • Religious supplies merchant wholesalers
  • School equipment and supplies (except books, furniture) merchant wholesalers
  • Scientific instruments merchant wholesalers
  • Scientific laboratory equipment merchant wholesalers
  • Surveying equipment and supplies merchant wholesalers
  • Teaching machines (except computers), electronic, merchant wholesalers
  • Veterinarians' equipment and supplies merchant wholesalers

Looking for another activity? Search the NAICS code lookup or browse business activities from A to Z.

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date $3,897,818
FY2026 $27,628,174
FY2025 $8,222,612
FY2024 $9,936,143
FY2023 $7,309,441

Top contractors by obligations

Rank Contractor Obligated, FY2026–FY2027 Share
1 Laser Shot, Inc. $20,038,347
2 ESI Acquisition Inc. $8,140,829
3 Government Scientific Source Inc. $405,281
4 ZLC Solutions LLC $298,343
5 Virtra, Inc. $208,339
6 Motor Services Hugo Stamp Inc. $207,984
7 Scientific Sales, Inc. $147,614
8 Mystaire Inc. $144,000
9 Oxford Nanopore Technologies, Inc. $132,540
10 Specto Technology LLC $100,180

See the full FY2025 ranking of NAICS 423490 contractors, by parent company.

Top funding agencies by obligations

Rank Agency Obligated, FY2026–FY2027 Share
1 Department of Homeland Security $24,378,475
2 Department of the Navy Department of Defense $2,412,358
3 Department of the Interior $2,313,685
4 Environmental Protection Agency $895,205
5 Department of State $417,614
6 Department of Justice $417,370
7 Department of Transportation $137,923
8 Department of Health and Human Services $137,160
9 Department of the Treasury $134,363
10 Smithsonian Institution $109,462
Rank PSC code Obligated, FY2026–FY2027 Share
1 5410 Prefabricated and Portable Buildings $17,678,096
2 DA10 IT and Telecom – Business Application/Application Development Software as a Service $8,044,604
3 R412 Simulation $2,360,251
4 6640 Laboratory Equipment and Supplies $1,127,463
5 6910 Training Aids $298,343
6 6630 Chemical Analysis Instruments $280,772
7 J069 Maintenance, Repair and Rebuilding of Equipment: Training Aids and Devices $208,339
8 2910 Engine Fuel System Components, Nonaircraft $207,984
9 3605 Food Products Machinery and Equipment $110,571
10 6350 Miscellaneous Alarm, Signal, and Security Detection Systems $100,180

Contract obligations by state

Rank Place of performance Obligated, last 12 months Share
1 Texas $20,220,040
2 District of Columbia $8,060,578
3 Virginia $657,419
4 New York $291,929
5 Georgia $265,306
6 New Jersey $213,455
7 Florida $207,984
8 North Carolina $181,462
9 Pennsylvania $172,256
10 Illinois $121,213
11 Massachusetts $106,680
12 California $103,580
13 Colorado $96,143
14 Minnesota $83,087
15 Tennessee $75,758
16 Louisiana $66,051
17 Maryland $58,363
18 Ohio $32,852
19 Oregon $24,003
20 Indiana $21,165
21 Washington $19,099
22 Nebraska $3,024
23 South Carolina $1,210
Show all 23

Shares are of everything obligated under NAICS 423490 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.

Contract opportunities

Notice Posted Due
Guatemala - Equipment to train K9s Solicitation · US Embassy Guatemala City (DOS)
Bulk lab supplies for laboratory analysis using me Award Notice · EPA Region 3 —
EPA-AO General Lab Supplies Solicitation
Combined synopsis/solicitation for general lab sup Solicitation · EPA Region 3
Endoscopy Systems Solicitation · FDA Office of Acquisition and Grant Services
Transscleral Flood Illumination (TFI) add-on module for the rtx1 Adaptive Optics Retinal Camera Solicitation · Office of Logisitics and Acquisition Operations (NIH) · 75N98026Q01182IMAGINEOPTIC
Sole Source Justification - PO 68HERW26P0322 Limited / Sole Source Justification —
New Service Agreement for Milestone UltraWAVE 3 Microwave Digestion- OC-2026-134408 Special Notice · FDA Office of Acquisition and Grant Services
Justification - Obsidian Camera Limited / Sole Source Justification · Immigration and Customs Enforcement —
Chicago Harbor Lock (CHL) Lake and River Gauges Solicitation · ENDIST Chicago (USACE)
NIAAA DICBR Animal Care and Use Program - Ventilated rack and air handler Pre-Solicitation · Office of Logisitics and Acquisition Operations (NIH)
Various Laboratory Chemicals Solicitation · Office of Research and Development (EPA)
VWR international LLC Pre-Solicitation · Office of Logisitics and Acquisition Operations (NIH)
Procurement of one (1) Brand Name or Equal QST Lab Thermal Stimulator (TCS 2. 2) System and Associated Components. Pre-Solicitation · Office of Logisitics and Acquisition Operations (NIH)
Purchase five Teledyne ISCO GLS compact composite Solicitation
Transscleral Flood Illumination (TFI) add-on module for the rtx1 Adaptive Optics Retinal Camera Pre-Solicitation · Office of Logisitics and Acquisition Operations (NIH) · 75N98026Q01026IMAGINEOPTICPCANEW08531
TEGUC- Ballistic Laboratory Equipment & Supplies Solicitation · US Embassy Tegucigalpa (DOS)
Firemen's trouser Solicitation · Construction and Equipment (DLA)
Purchase of Bottom Trawls for Alaskan Surveys Solicitation · National Oceanic and Atmospheric Administration
Laboratory Equipment and Supplies Solicitation · Department of Energy
Remote Boat Special Notice · International Boundary and Water Commission U.S.-Mexico · FY263042002
Survey Equipment Purchase Pre-Solicitation · Mission and Installation Contracting Command (AMC)
Parachute systems Solicitation · Customs and Border Protection
Consumable Laboratory Supplies Solicitation · Office of Research and Development (EPA) · 68HE0B26Q0074
PAL RTC System with PAL tool & modules Solicitation · Office of Science
Incucyte SX5 Lightning Service Plan Special Notice · Naval Supply Systems Command (Navy)
Laboratory Supply - Dry Cabinets - Sources Sought Pre-Solicitation
Solicitation for GAPP Package A for WRAIR-EME Solicitation · Department of State
Motorized Stages for Emission Spectrometer Solicitation · Office of Science
Laboratory Supplies for WRAIR Office Scheduled Delivery D Solicitation · Department of State
Maintenance Agreement for EQUIPMENT SARTORIUS Pre-Solicitation · Office of Logisitics and Acquisition Operations (NIH)
Remote Boat Special Notice · International Boundary and Water Commission U.S.-Mexico · FY263012002
SSN for Laboratory consumables testing kits and supplies. Pre-Solicitation · Indian Health Service
Consumable Laboratory Supplies Solicitation · Office of Research and Development (EPA) · 68HE0B26Q0066
Retrofitting Services for Tow Vehicle Special Notice · Engineer Research and Development Center (USACE)
Beckman Coulter Microplates Solicitation
Vacuum Cubes and Fittings Solicitation · Fermi National Accelerator Laboratory (DOE)
Laboratory Supplies/Equipment Solicitation · Office of Research and Development (EPA)
MTAC Recrystallization Equipment Special Notice · Department of Defense
Winch, drum, hand operated Solicitation · Coast Guard
Consumable Laboratory Supplies Solicitation · Office of Research and Development (EPA) · 68HE0B26Q0045
Laboratory supplies Award Notice · Office of Research and Development (EPA) · 68HE0B26Q0022 —
Consumable laboratory supplies Solicitation · Office of Research and Development (EPA) · 68HE0B26Q0042
Laboratory supplies Award Notice · Office of Research and Development (EPA) · 68HE0B26Q0023 —
Fatty-Acid Methyl Ester (FAME) Analyzers (x3) for Jet Fuel Testing Pre-Solicitation · AFLCMC Wright Patterson AFB
7A--FY26 Distech Controls Building Automation System ( Award Notice —
BAM Friction Equipment Solicitation · Bureau of Alcohol Tobacco Firearms and Explosives
Consumable laboratory supplies Solicitation · Office of Research and Development (EPA) · 68HE0B26Q0037
Consumable laboratory supplies Solicitation · Office of Research and Development (EPA) · 68HE0B26Q0036
Consumable laboratory supplies Solicitation · Office of Research and Development (EPA) · 68HE0B26Q0035
Show 40 more

Latest 50 of 2,418 listed here. See the rest on GovTribe.

Size standard history

Federal Register rules that named this code

Final rule Published Effective
Small Business Size Standards: Employee Based Size Standards in Wholesale Trade and Retail Trade 81 FR 3941 · 3245-AG49
Small Business Size Standards; Adoption of Size Standards by 2002 North American Industry Classification System for Size Standards 67 FR 56905 · 3245-AF00

From the NAICS codes each rule's amendments to 13 CFR 121.201 name. Rules that print their size standard tables as images aren't listed.

Quick answers

What is NAICS 423490?

NAICS 423490 is Other Professional Equipment and Supplies Merchant Wholesalers, a national industry in NAICS 42, Wholesale Trade.

What is the NAICS code for blackboards merchant wholesalers?

The NAICS code for blackboards merchant wholesalers is 423490, Other Professional Equipment and Supplies Merchant Wholesalers.

What is the NAICS code for drafting tables merchant wholesalers?

The NAICS code for drafting tables merchant wholesalers is 423490, Other Professional Equipment and Supplies Merchant Wholesalers.

What is the NAICS code for religious supplies merchant wholesalers?

The NAICS code for religious supplies merchant wholesalers is 423490, Other Professional Equipment and Supplies Merchant Wholesalers.

When did the size standard for NAICS 423490 last change?

The most recent Federal Register rule on record that names NAICS 423490 in the SBA's size standards is "Small Business Size Standards: Employee Based Size Standards in Wholesale Trade and Retail Trade" (81 FR 3941), published Jan 25, 2016 and effective Feb 26, 2016.

How much do federal agencies spend under NAICS 423490?

Federal contracts under NAICS 423490 obligated $8,222,612 in fiscal year 2025 and $56,994,187 in fiscal years 2023 through 2027.

Who are the largest contractors under NAICS 423490?

The contractors with the most obligated under NAICS 423490 in fiscal years 2026 and 2027 are Laser Shot, Inc. ($20,038,347); ESI Acquisition Inc. ($8,140,829); and Government Scientific Source Inc. ($405,281).

Which agencies buy the most under NAICS 423490?

The agencies that obligated the most under NAICS 423490 in fiscal years 2026 and 2027 are Department of Homeland Security ($24,378,475), Department of the Navy ($2,412,358) and Department of the Interior ($2,313,685).

Which PSC codes are used with NAICS 423490?

The PSC codes with the most obligated under NAICS 423490 in fiscal years 2026 and 2027 are 5410 Prefabricated and Portable Buildings, DA10 IT and Telecom – Business Application/Application Development Software as a Service and R412 Simulation.

Where is the work under NAICS 423490 performed?

By place of performance, the states with the most contract obligations under NAICS 423490 over the last 12 months are Texas ($20,220,040), the District of Columbia ($8,060,578) and Virginia ($657,419).

What is the latest contract opportunity under NAICS 423490?

The latest contract opportunity under NAICS 423490 is Guatemala - Equipment to train K9s, solicitation from US Embassy Guatemala City (DOS), posted November 2, 2026.

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