# Wholesale distribution at a glance

> What wholesale distribution is, how NAICS sector 42 is organized, its size in Census and BLS data, how distributors make money and why the ERP is central.

Source: https://docs.lumina-erp.com/distribution/wholesale-distribution-at-a-glance/

**In short.** Wholesale distributors buy goods in bulk, hold them close to customers and resell them to businesses for a margin of roughly one fifth of sales, most of which is spent running the operation. Because inventory, pricing, purchasing and receivables decide whether that thin spread becomes profit, the ERP that holds them is where the business is run.

Wholesale distribution is the business of buying goods from manufacturers in bulk and reselling them to other businesses: contractors, manufacturers, retailers, hospitals, restaurants and other distributors. It is a large, quiet part of the economy that runs on thin margins and a lot of inventory.

## What a distributor does

A distributor sits between the companies that make things and the companies that use or resell them. The manufacturer wants to ship full truckloads to a few places. The customer wants a few cases, delivered tomorrow, on credit, with someone to call when something is wrong. The distributor closes that gap.

To close it, a distributor:

- **Holds inventory** close to customers so they do not have to.
- **Breaks bulk**, turning pallets into cases and cases into eaches.
- **Extends credit**, usually 30 days or more, to business buyers.
- **Consolidates** many suppliers into one order, one delivery and one invoice.
- **Adds services** such as kitting, cutting, light assembly, technical advice and vendor-managed inventory.

The official definition is close to this. The U.S. classification system describes wholesalers as selling goods, generally without transforming them, to business customers rather than the general public, usually from a warehouse or office with little or no display space (paraphrased from the NAICS and BLS descriptions linked below).

## How the sector is organized

The North American Industry Classification System (NAICS) puts wholesale trade in sector 42 and splits it into three subsectors.

| NAICS | Subsector | Who is in it | Takes title to goods? |
|---|---|---|---|
| 423 | Merchant wholesalers, durable goods | Distributors of things meant to last: auto parts, lumber, electrical supplies, hardware and plumbing, machinery, computers, metals | Yes |
| 424 | Merchant wholesalers, nondurable goods | Distributors of things used up quickly: groceries, drugs, paper, chemicals, petroleum, apparel, farm products, beverages | Yes |
| 425 | Wholesale trade agents and brokers, including electronic markets | Firms that arrange sales between buyers and sellers for a commission or fee | No |

The line between 423 and 424 is about the goods. The line between merchant wholesalers and 425 is about the business model. A merchant wholesaler buys the goods, owns the inventory and carries the risk. An agent or broker never owns the goods. Most of what this section of the site covers (turns, fill rate, cash cycle, landed cost) applies to merchant wholesalers.

:::note[Manufacturers' sales branches]
Census data separates independent merchant wholesalers from **manufacturers' sales branches and offices**, which are wholesale locations owned by the manufacturer itself. Several of the headline numbers below exclude those branches. When you compare figures, check which population each one covers.
:::

## How big it is

All figures below were retrieved on 2026-09-28. Each one names its source and period, because the different government programs count different things.

### Employment and establishments

| Measure | Figure | Source and period |
|---|---|---|
| Wholesale trade employees, all of sector 42 | 6,072,100 | BLS Current Employment Statistics via Industries at a Glance, August 2026, seasonally adjusted, preliminary |
| of which 423 durable goods | 3,418,600 | Same, August 2026, preliminary |
| of which 424 nondurable goods | 2,209,900 | Same, August 2026, preliminary |
| of which 425 agents, brokers and electronic markets | 443,600 | Same, August 2026, preliminary |
| Private establishments, sector 42 | 628,831 | BLS Quarterly Census of Employment and Wages (QCEW), 2025 annual average |
| of which 423 | 340,080 | QCEW, 2025 annual average |
| of which 424 | 181,272 | QCEW, 2025 annual average |
| of which 425 | 107,479 | QCEW, 2025 annual average |

An establishment in QCEW is a single physical location, not a company. A distributor with 12 branches counts 12 times, so the number of distributing companies is well below 628,831.

### Sales and inventory

The Census Bureau's Monthly Wholesale Trade report for July 2026 (released 2026-09-10) put sales of merchant wholesalers, excluding manufacturers' sales branches and offices, at **$801.3 billion for the month**, seasonally adjusted. At that pace a year of sales comes to roughly $9.6 trillion (our arithmetic: 12 times the monthly figure). The same report put end-of-July inventories at $958.9 billion.

For a full year, the most recent annual benchmark is the Annual Wholesale Trade Survey for 2022, revised on 2026-08-31 to match the 2022 Economic Census:

| 2022 annual sales (AWTS, revised) | Amount |
|---|---|
| All merchant wholesalers, including manufacturers' sales branches | $11.08 trillion |
| Merchant wholesalers, excluding manufacturers' sales branches | $7.89 trillion |
| Manufacturers' sales branches and offices | $3.19 trillion |

The Census Bureau has since folded the annual wholesale survey into its Annual Integrated Economic Survey, so later full-year figures will come from that program.

## How distributors make money

A distributor's core income is the **spread** between what it pays for goods and what it sells them for. Everything else either widens that spread or protects it.

| Source | What it is | Where it shows up |
|---|---|---|
| Gross margin on product | Selling price minus cost of the goods sold | The income statement, line by line on every invoice |
| Value-added services | Kitting, cutting, assembly, delivery, technical support, managed inventory, sometimes billed separately | Service revenue or a higher price on the product |
| Supplier rebates and allowances | Money back from suppliers for hitting volume targets, promoting a line or selling to specific customers | Usually a reduction to cost, often booked after the sale |
| Payment terms and discounts | Taking early-pay discounts from suppliers, or charging for credit | Cost of goods or financing income |
| Commissions | For agents and brokers only, a fee on sales they arrange | Commission revenue |

The government numbers show how thin the result is. For 2022, the Annual Wholesale Trade Survey reports that merchant wholesalers excluding manufacturers' sales branches earned a **gross margin of 20.3% of sales** (27.2% for durable goods, 14.1% for nondurable goods) and spent 13.3% of sales on operating expenses. That leaves roughly seven cents on the dollar before interest, taxes and other items. Agents and brokers in the same survey earned commissions of 4.5% of the sales they arranged.

Those are sector averages across very different businesses. A grocery or pharmaceutical distributor lives on a few points of margin and enormous volume. An industrial or electrical distributor earns a wider margin on slower-moving, more technical products.

## What makes the business hard

### Thin margins leave little room for error

When the whole operation runs on a margin of about 20% and keeps about 7%, a small pricing mistake, an unbilled freight charge or a missed rebate claim can be a meaningful share of the profit on that customer. Price discipline matters more here than in most industries.

### Cash is tied up in inventory and receivables

A distributor usually pays its suppliers before its customers pay it. In between, the money sits on the shelf as inventory and then in accounts receivable. The Census inventory-to-sales ratio for merchant wholesalers was 1.20 in July 2026, which means inventory on hand equaled about 1.2 months of sales. Growth makes this worse, because more sales mean more inventory and more receivables to fund before the cash comes back. We cover this in [The cash conversion cycle](/distribution/cash-conversion-cycle/).

### SKU counts are large and demand is lumpy

A typical distributor carries thousands to hundreds of thousands of items, many of which sell a few times a year. Each needs a stocking decision, a reorder point, a price and a place in the warehouse. A small share of items produces most of the volume, and the long tail is where dead stock hides. See [ABC analysis and cycle counting](/distribution/abc-analysis-and-cycle-counting/).

### Prices move under you

Metals, lumber, fuel, chemicals and agricultural products can change price weekly. Supplier price increases arrive on their schedule, not yours, and customers often hold contract prices. A distributor that cannot see its true replacement cost and landed cost quickly will sell below cost without knowing it. See [Landed cost and freight terms](/distribution/landed-cost-and-freight-terms/).

### Customers expect it to be there

The whole point of a distributor is availability. Running out costs the order and, over time, the customer. Carrying too much ties up cash. Balancing the two is the daily job of purchasing, and the reason [safety stock and reorder points](/distribution/safety-stock-reorder-point-eoq/) and [fill rate](/distribution/fill-rate-and-otif/) get so much attention.

## Why the ERP sits at the center

In many industries the ERP is the accounting system with some operations attached. In distribution it is closer to the other way around. The decisions that make or lose money are made inside it, many times a day:

| Area | What the ERP holds | Why it matters to profit |
|---|---|---|
| Inventory | Quantity on hand, on order and committed, by item and location; costing; units of measure | Availability, carrying cost and the accuracy of every margin number |
| Pricing | Price books, customer contracts, matrix and cost-plus pricing, rebates | The spread itself |
| Purchasing | Reorder points, suggested orders, supplier terms, receipts | How much cash goes onto the shelf, and when |
| Sales orders | Quotes, orders, allocation, backorders, shipping | Fill rate and customer experience |
| Accounts receivable | Credit limits, invoices, collections | How quickly cash comes back |
| Accounts payable | Supplier invoices, terms, discounts | How long you hold cash before paying |

The metrics in this section, from inventory turns to the cash conversion cycle, all come out of this data. Whether you run Prophet 21 software, Epicor Kinetic or another system, the numbers are only as good as the item, cost and transaction records behind them.

## Sources

- [Monthly Wholesale Trade Report, July 2026 (U.S. Census Bureau)](https://www.census.gov/wholesale/current/index.html)
- [Monthly Wholesale Trade program home (U.S. Census Bureau)](https://www.census.gov/wholesale/index.html)
- [Revised Annual Report for Wholesale Trade: 2022 (U.S. Census Bureau, Annual Wholesale Trade Survey)](https://www.census.gov/data/tables/2022/econ/awts/revised-annual-report.html)
- [Annual Wholesale Trade Survey (U.S. Census Bureau)](https://www.census.gov/programs-surveys/awts.html)
- [Industries at a Glance: Wholesale Trade, NAICS 42 (BLS)](https://www.bls.gov/iag/tgs/iag42.htm)
- [Quarterly Census of Employment and Wages (BLS)](https://www.bls.gov/cew/)
- [NAICS 2022, sector 42 Wholesale Trade (U.S. Census Bureau)](https://www.census.gov/naics/?input=42&year=2022&details=42)

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