NAICS 423840 Quarterly Industry Report
Industrial Supplies Merchant Wholesalers
Comprehensive industry research for valuation professionals, business owners, buyers, and lenders
NAICS Code: 423840Sector: Wholesale Trade (42)Updated: Q1 2026
About This Report
This Fair Market Value industry report for NAICS 423840 compiles verified data from the U.S. Census Bureau[5], Bureau of Labor Statistics[7], and Small Business Administration[6] to profile the industrial supplies wholesale sector. Our research team examines distributor trade patterns and MRO supply chain data to deliver accurate market context for business valuation purposes. The report details SBA size standards, related NAICS classifications, and operational characteristics of industrial supply distribution. Fair Market Value updates this NAICS 423840 profile quarterly to reflect new Census releases and supply chain developments affecting wholesale trade.
Industry Snapshot
Key metrics for the industrial supplies merchant wholesalers industry.
Industry Definition & Overview
Industrial Supplies Merchant Wholesalers (NAICS 423840) encompasses establishments primarily engaged in the merchant wholesale distribution of industrial supplies used across manufacturing, construction, and maintenance operations. Product categories include abrasives, industrial diamonds, sand and gravel (wholesale only), welding supplies, containers and packaging materials, fasteners, industrial chemicals, janitorial supplies, and safety equipment. This industry also covers wholesale distribution of printing inks, industrial gases, and various MRO (maintenance, repair, and operations) consumables that keep production facilities running.
Distribution channels in this industry range from large national distributors with automated warehouse networks to regional specialists focused on specific product lines or end markets. Catalog and e-commerce sales represent a growing share of orders, particularly for standardized items with known specifications. Many distributors provide value-added services such as kitting, custom packaging, inventory management programs (vendor-managed inventory), and just-in-time delivery to manufacturing floors. According to the U.S. Census Bureau[5], establishments must take title to the goods they distribute to qualify under this merchant wholesale classification.
The SBA[6] sets the size standard at 125 employees for this industry. Gross margins vary considerably by product category, with commodity items like fasteners carrying thin margins while specialized products like industrial diamonds command higher markups. Customer retention depends heavily on fill rates, delivery speed, and technical support capabilities. Private-label programs allow some distributors to capture additional margin on high-volume consumable items. National account programs serve multi-location manufacturers needing consistent supply across geographically dispersed plants and facilities.
What's Included in This Industry
- Wholesale distribution of abrasives and grinding products
- Distribution of industrial diamonds and diamond tools
- Wholesale of welding supplies and equipment accessories
- Distribution of containers, drums, and packaging materials
- Wholesale of industrial fasteners, nuts, and bolts
- Distribution of printing inks and printing supplies
- Wholesale of janitorial and sanitation supplies
- Distribution of safety equipment and personal protective gear
- Wholesale of industrial gases and compressed gas cylinders
- Distribution of sand, gravel, and other industrial minerals (wholesale only)
NAICS Classification Hierarchy
| Level | Description | Code |
|---|---|---|
| Sector | Wholesale Trade | 42 |
| Subsector | Merchant Wholesalers, Durable Goods | 423 |
| Industry Group | Machinery, Equipment, and Supplies Merchant Wholesalers | 4238 |
| NAICS Industry | Industrial Supplies Merchant Wholesalers | 42384 |
| National Industry | Industrial Supplies Merchant Wholesalers | 423840 |
Related NAICS Codes
| Code | Description | Relationship |
|---|---|---|
| 423830 | Industrial Machinery and Equipment Merchant Wholesalers | Covers industrial machinery wholesalers that often sell alongside industrial supply distributors, with both serving the same manufacturing customer base |
| 423710 | Hardware Merchant Wholesalers | Distributes hardware products through wholesale channels, overlapping in fastener and tool categories with industrial supplies wholesalers serving MRO markets |
| 423510 | Metal Service Centers and Other Metal Merchant Wholesalers | Handles metals and minerals wholesale distribution, sharing industrial customer relationships and sometimes warehouse infrastructure with supply distributors |
| 423490 | Other Professional Equipment and Supplies Merchant Wholesalers | Covers other professional and commercial equipment wholesalers, sometimes bundling equipment sales with consumable industrial supply contracts |
| 325510 | Paint and Coating Manufacturing | Manufactures paints, coatings, and adhesives that flow through industrial supply distribution channels to manufacturing and construction end users |
| 325520 | Adhesive Manufacturing | Produces adhesives and sealants commonly stocked and distributed by industrial supply wholesalers as part of MRO product assortments for factory customers |
Geographic Concentration
Top states by share of national establishments.
| # | State | % Est. | Total Est. |
|---|---|---|---|
| 1 | California | 12.6% | 1,140 |
| 2 | Texas | 11.9% | 1,078 |
| 3 | Florida | 5.3% | 480 |
| 4 | Illinois | 4.8% | 440 |
| 5 | Pennsylvania | 4.4% | 395 |
| 6 | New York | 4.2% | 376 |
| 7 | Ohio | 4.1% | 375 |
| 8 | Georgia | 3.6% | 323 |
| 9 | Michigan | 3.2% | 287 |
| 10 | New Jersey | 2.8% | 257 |
% Of Establishments
0%
13%
Source: County Business Patterns, U.S. Census Bureau[3]
SBA Lending Summary
432
Total SBA Loans
$281.3M
Total Loan Volume
$651K
Average Loan Size
10 yrs
Average Loan Term
10.57%
Average Interest Rate
2,232
Jobs Supported
Source: SBA 7(a) Program Data, U.S. Small Business Administration — FY 2025[4]
Key Insight: The SBA[6] classifies NAICS 423840 under merchant wholesale trade with a size standard of 125 employees. Small businesses meeting this threshold qualify for federal contracting set-asides and SBA loan programs. Industrial supplies wholesalers commonly use SBA 7(a) loans[8] to finance broad inventory assortments and invest in warehouse automation. Distributors expanding into new territories or product lines can access 504 loans[9] for facility acquisitions. High inventory turns and steady reorder cycles make industrial supply distribution an attractive lending category for SBA-backed financing.
Top SBA Lenders
| # | Lender | Loans | Volume | Avg Loan |
|---|---|---|---|---|
| 1 | Byline Bank | 16 | $40.4M | $2.5M |
| 2 | Northwest Bank | 8 | $40.0M | $5.0M |
| 3 | The Huntington National Bank | 56 | $27.0M | $482K |
| 4 | First Internet Bank of Indiana | 16 | $26.8M | $1.7M |
| 5 | TD Bank, National Association | 40 | $19.0M | $475K |
Frequently Asked Questions
Common questions about this industry.
What types of businesses fall under NAICS 423840?
NAICS 423840 includes merchant wholesalers distributing industrial supplies such as abrasives, welding supplies, industrial diamonds, fasteners, containers, printing inks, safety equipment, and MRO consumables. These firms take title to goods and resell to manufacturers, contractors, and maintenance operations. Source: U.S. Census Bureau[5]
How is the industrial supplies wholesale industry structured?
The industry includes large national distributors with automated warehouses, regional specialists in specific product lines, and local distributors serving geographic territories. Many firms offer value-added services like kitting, vendor-managed inventory, and technical support. E-commerce and catalog sales handle standardized items while complex products require sales engineer involvement.
What is the SBA size standard for NAICS 423840?
The SBA sets the size standard at 125 employees for industrial supplies merchant wholesalers. Businesses at or below this employee count qualify as small for federal contracting preferences and SBA financing programs. Source: SBA Size Standards[6]
What NAICS codes are related to industrial supplies wholesaling?
Key related codes include 423830 (industrial machinery wholesalers), 423710 (hardware wholesalers), 423510 (metals wholesalers), and manufacturing codes like 325510 (paints and coatings) and 332722 (fastener manufacturing). Source: Census NAICS[5]
What industries interact most with industrial supply wholesalers?
Primary customers include manufacturing plants, construction firms, oil and gas operations, and government facilities. Upstream partners include abrasive manufacturers, chemical producers, fastener makers, and safety equipment factories. Maintenance contractors and industrial equipment service firms also purchase regularly from these distributors.
What products are included in NAICS 423840?
Products include abrasives, industrial diamonds, welding supplies, containers, fasteners, printing inks, janitorial supplies, safety equipment, industrial gases, and sand/gravel distributed through wholesale channels. MRO consumables and packaging materials also fall within this classification. Source: Census Bureau[5]
Can industrial supply wholesalers get SBA loans?
Yes, small businesses under NAICS 423840 can access SBA 7(a) loans for inventory financing and working capital, 504 loans for warehouse and distribution center purchases, and microloans for smaller capital needs. The steady reorder nature of industrial supply distribution supports strong loan repayment profiles. Source: SBA Loan Programs[10]
Where are industrial supply wholesalers concentrated geographically?
Industrial supply wholesalers concentrate near major manufacturing regions including the Great Lakes states, Texas, California, and the Southeast industrial corridor. Distribution centers locate along interstate highways and near rail hubs to serve broad geographic territories efficiently. Source: BLS QCEW[11]
Sources & References
Government datasets and editorial sources used in this report.
- [1]U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages bls.gov
- [2]U.S. Census Bureau, Economic Census census.gov
- [3]U.S. Census Bureau, County Business Patterns census.gov
- [4]U.S. Small Business Administration, SBA 7(a) Loan Program Data data.sba.gov
- [5]U.S. Census Bureau census.gov
- [6]SBA sba.gov
- [7]Bureau of Labor Statistics bls.gov
- [8]SBA 7(a) loans sba.gov
- [9]504 loans sba.gov
- [10]SBA Loan Programs sba.gov
- [11]BLS QCEW bls.gov
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