Electronic Markets and Merchant Wholesalers: Census Coverage

Illustrative analyst workbench with a steel component in a clear tray, a plain carton and a transparent divider inside a generic wholesale warehouse.
“A useful market map keeps each classification attached to the evidence that supports it, with an owner for every unresolved company.”
— Stan Moskovtsev, Co-Founder & U.S. CEO
Evidence boundaries to retain in a wholesale population crosswalk
Source boundaryWhat the buyer should preserve
The glossary distinguishes own-account merchants from agents and brokers representing others Census definitions.The role in the sale, supported by the counterparty’s records.
The monthly survey excludes manufacturers’ sales branches and offices and non-merchant wholesalers Monthly coverage.The specific exclusions of the series used in the map.
The annual catalog separately lists wholesale summary tables and electronic-market, agent and broker tables AIES table index.The selected table, its reference dataset and its published scope.
The historical annual method distinguishes firms, employer identifiers and establishments Annual methodology.The unit being compared, with its method version.

These are source boundaries, not an official mapping of individual businesses or a measure of supplier availability. The annual methodology row is historical.

How much of wholesale trade does the monthly survey cover?

About 67% of 2024 U.S. wholesale sales: the Monthly Wholesale Trade Survey measures only merchant wholesalers outside manufacturers’ sales branches, and the branches and the agents, brokers and electronic markets it leaves out made the rest.

Zinit Research · Census data for 2024

The population the monthly wholesale survey covers made $7,989.9 billion of the $11,915.3 billion in 2024 U.S. wholesale sales, 67.1%; manufacturers’ own sales branches made 25.5% and agents, brokers and electronic markets 7.5%

2024 sales of employer firms by type of operation, from the Annual Integrated Economic Survey, released September 3, 2026. The value on the right is the merchant wholesalers’ share, the part of each product line the Monthly Wholesale Trade Survey measures. Census does not split agents, brokers and electronic markets by product line, so they appear only in the first row, and its share counts them in the total. Measured the way the product-line rows are, merchants against merchants and branches together, all wholesale trade comes to 72.5%.

All wholesale trade67.1%
Durable goods76.6%
Nondurable goods69.0%
Chemicals and allied products51.4%
Motor vehicles, parts and supplies53.3%
Petroleum and petroleum products56.4%
Paper and paper products57.5%
Grocery and related products66.9%
Metals and minerals, except petroleum71.7%
Drugs and druggists’ sundries75.3%
Miscellaneous nondurable goods78.7%
Machinery, equipment and supplies78.9%
Furniture and home furnishings79.2%
Lumber and other construction materials79.4%
Professional and commercial equipment and supplies83.0%
Hardware, plumbing and heating equipment85.0%
Beer, wine and distilled alcoholic beverages88.3%
Household appliances and electrical and electronic goods88.6%
Miscellaneous durable goods96.0%
Farm product raw materials100.0%
Apparel, piece goods and notionsbranch figure not published (S)–

Which Census population does your counterparty belong to?

Proposed row
Merchant wholesaler on its own account
In the Monthly Wholesale Trade Survey?
Yes
2024 sales of that population, this line
$831.8 billion
Its share of this line’s 2024 sales
88.6%

Merchant wholesaler on its own account. Keep the title evidence (an invoice or terms showing the seller owns what it sells you) and the contracting entity with the row, and read market context from the monthly survey’s household appliances and electrical and electronic goods series, which printed $115.9 billion of sales for August 2026 (preliminary). Ordering online does not change the row: e-commerce made up 36.6% of 2024 sales by merchant wholesalers of household appliances and electrical and electronic goods, so the channel goes in its own field.

The rule the check applies: a manufacturer’s branch is excluded from the monthly survey whatever else is true; a seller that takes title and represents no one is a merchant row; one that represents others without taking title is an agent row; anything else stays unmapped. It proposes a row for your review and classifies no named business.

Source: U.S. Census Bureau, AIES42BASIC and AIES42AGBR, 2024; coverage as stated in About the Monthly Wholesale Trade Survey. A row without a bar is a product line where Census does not publish the branch figure. Chart: Zinit Research. Data and method

By product line the monthly survey’s population ranges from 51.4% of sales in chemicals and allied products to 100.0% in farm product raw materials, so the same monthly series describes very different shares of a buyer’s supply market from one category to the next.

Who sells on their own account, and who represents someone else?

The Census wholesale glossary describes merchant wholesalers as selling goods on their own account. It defines a distributor through buying and taking title before resale. Agents and brokers represent others in negotiating purchases, sales or contracts; they typically receive a fee or commission and do not take possession or title. Ask the proposed counterparty which role it performs in the transaction under review. Save its answer alongside the contracting entity and the document that supports the answer. A marketing description should prompt that enquiry rather than close it.

Does online ordering establish an electronic-market classification?

An online transaction needs its own field. The glossary’s e-commerce definition concerns orders placed, or price and terms negotiated, through an electronic system; payment can occur offline. Its drop-shipment definition separately describes a manufacturer delivering to the customer although a wholesaler makes the sale. These definitions address different features of a transaction. Record the ordering channel, the seller’s role and the fulfilment arrangement separately. Seeing an online order or a direct shipment leaves the population classification to verify; this article provides no rule that assigns a named business to an electronic-market category.

Online ordering is ordinary among merchants that own the goods

In 2024, e-commerce made up 35.1% of sales by merchant wholesalers outside manufacturers’ branches and 46.8% of branch sales, and across product lines the merchants’ share ran from 10.4% in lumber and other construction materials to 83.4% in drugs and druggists’ sundries. Sellers that take title, the monthly survey’s own population, already sell this much online, so an online order on its own tells a buyer nothing about whether the counterparty is an electronic market, which is why the crosswalk records the channel in its own field.

E-commerce as a percent of 2024 sales, merchant wholesalers except manufacturers’ sales branches and offices

All merchant wholesalers35.1%
Manufacturers’ sales branches and offices46.8%
Drugs and druggists’ sundries83.4%
Paper and paper products38.6%
Grocery and related products36.8%
Household appliances and electrical and electronic goods36.6%
Motor vehicles, parts and supplies35.8%
Beer, wine and distilled alcoholic beverages33.5%
Professional and commercial equipment and supplies30.1%
Miscellaneous durable goods28.9%
Apparel, piece goods and notions25.9%
Hardware, plumbing and heating equipment24.4%
Machinery, equipment and supplies23.2%
Furniture and home furnishings22.2%
Miscellaneous nondurable goods20.9%
Lumber and other construction materials10.4%
Metals and minerals, except petroleumnot published (S)–
Farm product raw materialsnot published (S)–
Chemicals and allied productsnot published (S)–
Petroleum and petroleum productsnot published (S)–

Source: U.S. Census Bureau, AIES42BASIC, 2024, e-commerce sales divided by total sales by Zinit Research. Census counts an order placed or a price negotiated over an online system as e-commerce, whether or not payment is made online. Rows without a bar are cells Census does not publish. Chart: Zinit Research. Data and method

How should a manufacturer’s branch enter the review?

The Census branch and merchant definitions require care together. Manufacturers’ sales branches and offices are establishments maintained apart from the producing plant or mine to market the enterprise’s products. The glossary also includes these branches and offices in its general merchant-wholesaler definition. Treat that vocabulary as context, then check the chosen source’s coverage. In the review record, ask whether the proposed counterparty is an independent reseller or a manufacturer’s sales operation, and retain the evidence. Leave the answer open if the legal entity or operating relationship has not been established.

Which businesses does the monthly source exclude?

The Monthly Wholesale Trade Survey overview states that its coverage excludes manufacturers’ sales branches and offices. It also excludes non-merchant wholesalers such as agents, brokers and electronic markets. That is the source-specific boundary a buyer should carry into a dashboard or market-map note. A category can appear in the general wholesale vocabulary while being excluded from the selected monthly series. Keep the source name visible beside the mapped population so a later reviewer can see which coverage statement was applied.

The same monthly overview retains an older industry-classification reference and legacy survey-design material. This analysis uses its explicit coverage statement only. It makes no claim that every design detail on the page describes the present annual programme. When a team needs a current estimate or a comparison across releases, obtain the methods for those specific releases and retain their definitions. An unresolved comparability question should remain in the record rather than disappear when the figures are copied into a presentation.

What does the annual table catalog establish?

The annual AIES catalog lists a wholesale summary table separately from a table for electronic markets, agents, brokers and commission merchants. The catalog establishes that these named table products are available; it does not by itself establish a platform’s market share or its coverage of a buyer’s supplier universe. Save the chosen table’s title and scope before using its output. Check its actual notes and definitions for the intended comparison instead of treating the catalog heading as a completed analytical result.

The same catalog presents inventory valuation and e-commerce statistics as distinct table products. In the proposed crosswalk, keep the population question separate from the measure being requested. A buyer may need to understand who is represented before deciding whether a sales, inventory or transaction-channel measure answers the sourcing question. This article reports none of those economic levels. Its purpose is to help the reviewer document which population and which measure would need further examination before any calculation could be supported.

What the two catalog tables actually hold

AIES42BASIC splits wholesale sales, employment, e-commerce and inventories by type of operation, and AIES42AGBR covers the $888.7 billion of 2024 sales that agents, brokers and electronic markets handled. Of that, 98.8% was sold on others’ account, and the commissions they kept came to $38.8 billion, 4.4% of those sales; Census reports no inventories figure for them (N), consistent with its definition of agents as representatives who do not take possession of, or title to, any goods. Adding their gross sales to merchants’ sales mixes goods a business owned with goods it arranged for someone else, so the crosswalk keeps them in separate rows.

Wholesale populations in the 2024 AIES tables
Population2024 salesShare of wholesale salesEmployeesEnd-of-year inventoriesIn the monthly surveyAIES table
Merchant wholesalers, except manufacturers’ sales branches$7,989.9 billion67.1%5,291,354$917.4 billionYesAIES42BASIC
Manufacturers’ sales branches and offices$3,036.7 billion25.5%786,604$289.9 billionNoAIES42BASIC
Agents, brokers and electronic markets$888.7 billion7.5%243,463not available (N)NoAIES42AGBR
All wholesale trade$11,915.3 billion100.0%6,321,421not published (S)PartlyAIES42BASIC

Employees are counted for the pay period including March 12. The AIES counts employees and sales, not establishments, so a list of supplier sites needs another source before it can be compared with these rows.

Why keep firms, identifiers and sites separate?

The historical annual wholesale methodology describes relationships between multi-unit firms, employer identification numbers and establishments. It explains that a firm can connect to several identifiers and an identifier can connect to several establishments. Use that historical explanation to recognize a possible unit mismatch when comparing a list of supplier sites with a firm-based statistic. For the buyer’s own map, record the contracting legal entity, the operating site and the public reporting unit in separate fields. Do not assume a site count can be substituted for a company count.

That versioned annual method also separates merchant establishments excluding manufacturer branches, the branches themselves, and agents, brokers and business electronic markets when constructing its sampling frame. This is historical classification context. It does not establish the present integrated annual programme’s implementation. Preserve the method version with the classification explanation, and seek the current table’s own documentation when a current comparison is required. The crosswalk should expose that missing step before the analyst combines populations or labels a residual group as a market opportunity.

How can a buyer build an auditable population crosswalk?

  1. Create a proposed own-account merchant row when the transaction records support resale on the seller’s account. Record the title evidence and the contracting entity; keep any separate fulfilment arrangement visible.
  2. Create a proposed representative row when the records support acting for another party. Save the represented party, the role in the sale and the fee or commission explanation. An incomplete answer remains unresolved.
  3. Keep a separate manufacturer-branch review row when the operating relationship requires it. Record the parent relationship and the evidence still needed before applying a source-specific inclusion or exclusion.
  4. Treat an electronic-market label as a classification question requiring documentation. Keep online ordering in its own channel field, then obtain the source definitions and counterparty evidence needed to support the proposed business-role mapping.
  5. Retain an unmapped-company row when the evidence cannot resolve the role, entity or reporting unit. Give it an owner, the missing document and a review date. Keep it outside any classified total until the mapping is supported.

This is an authored review method, not a Census classification service or a tested accuracy threshold. For each proposed row, preserve the source version, commercial document, reviewer and unresolved question. Connect material uncertainty to a supplier risk review when it affects the buying decision. Use the supplier relationship governance guide to plan the evidence conversation. Keep other market-method questions in the Journal reading queue, with a clear distinction between published context and the records needed for this counterparty.

What should an automated market map be allowed to conclude?

Frequently asked questions

Can a general merchant-wholesaler definition determine monthly survey coverage?

Read the specific coverage statement as well. The monthly overview excludes manufacturer sales branches and offices and non-merchant wholesalers, including agents, brokers and electronic markets. Keep those exclusions with the series used in the market map.

Does an online order prove the seller belongs to an electronic-market population?

The e-commerce definition describes how an order is placed or price and terms are negotiated, with payment possibly offline. It does not supply an individual-company classification. Record the transaction channel separately and obtain evidence of the seller’s role.

Can historical annual methods be treated as the current annual survey design?

The versioned annual methodology supplies historical population and reporting-unit context. Use it with that limitation and obtain the relevant current documentation for a present-day comparison. Do not carry old sample design into a current annual claim.

Does the annual catalog measure a platform’s supplier coverage?

The AIES index identifies available table products and their named scope. That is insufficient to establish a platform’s supplier-directory coverage or classify a named business. Such a claim needs its own matched population, definitions and evidence.

Where does this data come from?

What the numbers are
2024 sales, employment, e-commerce sales and end-of-year inventories of U.S. wholesale employer firms by type of operation (merchant wholesalers except manufacturers’ sales branches and offices, the branches and offices themselves, and wholesale electronic markets, agents and brokers) and by product line (2017 NAICS industry groups), from the Annual Integrated Economic Survey tables AIES42BASIC and AIES42AGBR, released September 3, 2026, and August 2026 sales by kind of business from the Monthly Wholesale Trade Survey. Cells Census withholds or does not publish stay blank. The tables describe populations of businesses, never a named company.
Source files
How the page stays current
The AIES publishes once a year; the 2025 tables replace these when Census releases them, and the monthly figure in the check follows each Monthly Wholesale Trade release.
Download the data

One ZIP holds the 2 CSV files below and a README that lists the sources and the citation.

  • census-aies-2024-agents-brokers-electronic-markets.csv
  • census-aies-2024-wholesale-populations.csv

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Cite this page

Zinit Research. “Electronic Markets and Merchant Wholesalers: Census Coverage.” Data: U.S. Census Bureau, 2024 Annual Integrated Economic Survey (AIES42BASIC, AIES42AGBR). https://zinit.com/journal/research/wholesale-market-population-comparison, data retrieved October 22, 2026.

How this page is produced
Zinit Research downloads the source files listed above, keeps the originals, and computes every chart, table and figure in the data sections from them; an automated check rebuilds each number from the files before the page is published. The article text follows the Editorial Policy.

Sources

  1. 2024 AIES Data — U.S. Census Bureau, 2026. Foundational evidence (official report): Dataset identity and table-boundary distinctions.
  2. Monthly Wholesale Trade - Definitions — U.S. Census Bureau, 2019. Foundational evidence (official report): Ownership, representation, electronic transaction and reporting-unit distinctions.
  3. Monthly Wholesale Trade - About the Monthly Wholesale Trade Survey — U.S. Census Bureau, 2019. Foundational evidence (official report): Monthly coverage cannot represent every type of wholesaling counterparty.
  4. Annual Wholesale Trade Survey Methodology — U.S. Census Bureau, 2020. Historical evidence (official report): Why activity, ownership and reporting unit must be retained without transplanting historical sample designs.

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