# NAICS 423840: Industrial Supplies Merchant Wholesalers

Breadcrumb: [NAICS codes](https://bidrover.com/naics) › [423840 Industrial Supplies Merchant Wholesalers](https://bidrover.com/naics/423840)

This industry comprises establishments primarily engaged in the merchant wholesale distribution of supplies for machinery and equipment generally used in manufacturing, oil well, and warehousing activities.

- NAICS code: 423840
- Title: Industrial Supplies Merchant Wholesalers
- Sector: 42 Wholesale Trade
- Subsector: 423 Merchant Wholesalers, Durable Goods
- Industry group: 4238 Machinery, Equipment, and Supplies Merchant Wholesalers
- SBA size standard: 125 employees
- Open bids on BidRover: 1
- Updated: Oct 23, 2026

## Open bids (1)

- [Welding Gases & Cylinder Rental Services OA](https://bidrover.com/bids/welding-gases-and-cylinder-rental-services-oa--eed4ca36-6c34-430d-b341-3fef780f2f60) — Goods & supplies · Kentucky, United States · due 2026-10-23

## Frequently asked questions

### What is NAICS code 423840?

NAICS 423840 is "Industrial Supplies Merchant Wholesalers" in the 2022 North American Industry Classification System, in sector 42 (Wholesale Trade). This industry comprises establishments primarily engaged in the merchant wholesale distribution of supplies for machinery and equipment generally used in manufacturing, oil well, and warehousing activities.

### What is the SBA size standard for NAICS 423840?

A business is small under NAICS 423840 at or below 125 employees, including affiliates (13 CFR 121.201). Confirm the standard named in each solicitation.

### How many government bids are open under NAICS 423840?

BidRover counts 1 open bid that cite NAICS 423840 as of Oct 23, 2026, refreshed every hour from official public sources. Many state and local notices do not list a NAICS code, so search by keyword too.

### How do I get alerts for NAICS 423840 bids?

Save an alert on this page. A free account gets new matching bids by weekly email; the Team plan ($19/mo) sends daily alerts with match scores, the buyer, source link and documents.

## Related NAICS codes

- [423830 Industrial Machinery and Equipment Merchant Wholesalers](https://bidrover.com/naics/423830)
- [424690 Other Chemical and Allied Products Merchant Wholesalers](https://bidrover.com/naics/424690)
- [423810 Construction and Mining (except Oil Well) Machinery and Equipment Merchant Wholesalers](https://bidrover.com/naics/423810)
- [423820 Farm and Garden Machinery and Equipment Merchant Wholesalers](https://bidrover.com/naics/423820)
- [423850 Service Establishment Equipment and Supplies Merchant Wholesalers](https://bidrover.com/naics/423850)
- [423860 Transportation Equipment and Supplies (except Motor Vehicle) Merchant Wholesalers](https://bidrover.com/naics/423860)

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Code titles and definitions: U.S. Census Bureau, North American Industry Classification System (NAICS), 2022 (https://www.census.gov/naics/). Size standards: U.S. Small Business Administration, Small Business Size Standards, 13 CFR 121.201, eCFR text current as of 2026-10-21 (https://www.ecfr.gov/current/title-13/section-121.201).

BidRover lists bids from official public sources. It is not an issuing authority; confirm the NAICS code and size standard named in each solicitation.