Find external market inputs through Census economic statistics, trade data and BEA industry accounts. Check sector, product, geography, value basis and release vintage before calculating a share.
Market-share data sources for US B2B markets should be chosen by the denominator they measure. A search result offering a large industry number may describe manufacturers' shipments, a wholesaler's resale revenue or value added. Those measures can all be valid and still be wrong for your company's share calculation.
The market-share glossary owns the meaning and formula. This directory, checked October 6, 2026, concerns obtaining and assessing external inputs. It does not supply a universal market size or claim that a government industry equals your served market.
Specify the product or service, customer population, geography, period and whether the share is based on revenue or physical units. Record the transaction level: manufacturer selling to distributors, wholesaler selling to businesses or supplier selling to end users.
Choose a relevant industry classification, but inspect its definition and version. The Census NAICS directory is the primary starting point for US industry-code definitions. An establishment's industry describes its activity; it does not automatically isolate every product category it sells.
Write the numerator in the same terms. If your sales include exports but the market denominator is domestic demand, separate the exported portion before computing a domestic share.
The Economic Census provides detailed economic business statistics. Search its tables for the relevant industry, geography and reported sales, receipts, revenue or shipment measure, then inspect the table notes rather than copying the first total.
Use it to establish a documented structural view. Record the data year separately from the publication or download date. A table downloaded in 2026 may describe an earlier business year. Review coverage, suppressed cells and whether your target population includes businesses outside the table's scope.
A broad industrial classification may be useful as context or an upper bound even when it cannot establish a precise niche market. Label that role openly.
The Census Annual Integrated Economic Survey integrates annual economic data collection across business sectors. Check the current available tables and documentation for your sector and measure rather than assuming every historical survey continues unchanged.
Annual observations can help update an older structural denominator. Preserve revisions and methodology notes. If you apply an industry growth rate to an older product estimate, record that as a modeled update; the new value is not a newly observed product-market total.
Census international trade data supplies import and export information. It can support a cross-border view, but trade classifications and valuation may differ from domestic industry statistics.
An illustrative apparent-supply proxy is domestic shipments plus imports minus exports. For synthetic figures of $100 million, $30 million and $20 million, that proxy is $110 million. A $10 million company numerator would be 9.09% of the proxy.
That arithmetic alone does not make it a final market share. Inventory changes, product-code mapping, transfer prices, distribution margins and inconsistent valuation can prevent the proxy from matching end-customer demand. Reconcile those boundaries before labeling the result a sales-market estimate.
BEA's industry data directory includes industry economic measures. Inspect whether a series is value added, gross output or another basis before using it. It can describe industry scale and movement without necessarily matching a specific supplier's addressable revenue market.
Do not add revenue at several stages of the same supply chain into one denominator: manufacturer and wholesaler sales can count the same underlying goods at different transaction levels.
Keep publisher, table/series ID, direct URL, data year, release vintage, units, classification version, geography, included population, exclusions and any transformation. Store the extracted value with enough context for another analyst to reproduce it.
Use versioned definitions when the market boundary changes. Show a range if several plausible mappings remain, and label commercial or association estimates by their actual methodology rather than treating them as interchangeable with official statistics.
A sales team's account-growth question may depend on customer category spend rather than a market total. The wallet-versus-market comparison explains that choice. Keep external market estimates and customer-wallet evidence in separate fields, and discuss the available inputs and intended review with Covirage before expecting a report to answer both questions.
Not interchangeably. Value added and gross output are different economic measures. Inspect the series definition and choose a basis that corresponds to what your company sells rather than dividing sales by a convenient industry figure.
No. Counts can help define an addressable business population, but a revenue denominator also needs a supported spend or sales value. Keep the count-based estimate and its assumptions distinct from observed market revenue.