2022 Economic Census Concentration of Largest Firms
U.S. Census Bureau / accessed 2026-07-17
Cross-sectional + longitudinal evidence studio
Compare sector concentration, employment composition, business flows, and merger-review activity. BDS and HSR observations retain their separate sector populations and reporting periods.
No composite score.
Cross-domain comparison workspace
Annual represented-economy composition
High 11.363% in 2018 / low 7.707% in 1979
High 16.747% in 2021 / low 8.619% in 1979
High 27.098% in 1978 / low 9.206% in 2023
Each annual line equals the selected sector's published BDS count divided by the same 17-sector Census-concentration overlap in that year. The represented denominator is recalculated annually. These are composition shares, not legal market shares, GDP or revenue contributions, productivity, competitive intensity, causal effects, or evidence of antitrust harm. NAICS 11 and 55 remain outside the joined universe.
Selected evidence profiles
Continue from comparison to sector-level custodySource custody
The published sector code joins the releases. Values, ranks, gaps, periods, and denominators remain legible as separate evidence rather than a synthetic verdict.
U.S. Census Bureau / accessed 2026-07-17
U.S. Census Bureau / accessed 2026-07-18
U.S. Census Bureau / accessed 2026-07-19
Federal Trade Commission and U.S. Department of Justice / 34 exact release-sector joins
This studio places separate published measures side by side. Every rank uses the full 17-sector universe, and every gap subtracts exact values only within the same metric and unit. Ranks, percentiles, intensities, and gaps cannot be compared across measures, summed, averaged, or interpreted as a competition score, causal result, market-power finding, or legal antitrust market. This bridge joins only the exact broad-sector NAICS code published by both sources. The 2022 Economic Census sector row measures economy-wide employer-firm structure, while each HSR sector aggregate sums the release's published acquired-entity 3-digit rows. The shared code does not define a legal antitrust market, measure a sector merger rate, establish competitive harm, or score agency performance.