2022 Economic Census Concentration of Largest Firms
U.S. Census Bureau / accessed 2026-07-17. Source custody remains attached to every public sector row.
Joined Census sector evidence
Sector Structure Observatory
Compare broad sectors using industry concentration, business entry, employment, and merger-review data. Census and HSR measures keep their own years and populations; unlike measures are not combined into a score.
Source-bounded sector composition
17-sector map
- Area
- 2023 BDS employment
- Coverage
- 133.5M workers
Color2022 classification NAICS sector identity
17 categorical NAICS identities / no orderingBDS yeararea + readout
62Health care22M / 16.5%44-45Retail trade16.1M / 12.0%72Food & accommodation14.6M / 10.9%31-33Manufacturing12.3M / 9.2%56Administrative services11.9M / 8.9%54Professional services10.4M / 7.8%23Construction7.6M / 5.7%52Finance & insurance6.9M / 5.2%48-49Transportation6.5M / 4.8%42Wholesale trade6.2M / 4.7%81Other services5.7M / 4.3%61Education3.8M / 2.8%513.5M / 2.7%71532.4M / 1.8%2221
Selected / NAICS 51 / 2.7% of map areaInformationColor / Sector identity / Categorical / no ordering
- 2022 structure
- 638.2
- median detailed-industry HHI
- 17 / 29 published
- 2017-2022 strict change
- +56.4
- median HHI-point change
- 54.5% strict-pair coverage
- 2023 business flows
- 10.578%
- establishment entry rate
- BDS broad-sector rate
- FY2024 merger review
- 263
- acquired-entity transactions
- 13.3% / rank 2 of 19
012017 Economic Censusstrict historical anchor
022022 Economic Censuscurrent concentration distribution
032023 Business Dynamicsestablishment and job flows
04FY2023-FY2024 HSRacquired-entity composition
Four families, never one score.
Cross-domain sector workspace
Structure, change, business flows, and federal review by sector
17 of 17 sectors in the current sliceOrdered sector comparison
Establishment entry rate by sector
Source custody and method
Four bounded evidence families.
The sector code is the bridge. Concentration levels, strict historical changes, business flows, and HSR acquired-entity composition remain separate measures with separate denominators.
2017 Economic Census Concentration of Largest Firms
U.S. Census Bureau / accessed 2026-07-18. Source custody remains attached to every public sector row.
2023 Business Dynamics Statistics
U.S. Census Bureau / accessed 2026-07-19. Source custody remains attached to every public sector row.
Hart-Scott-Rodino Annual Reports, FY2023 and FY2024
Federal Trade Commission and U.S. Department of Justice. Acquired-entity sector counts, release shares, source wording, and review-stage aggregates retain each report's own published universe.
Each row joins 2022 six-digit Economic Census concentration-distribution summaries, strict 2017-2022 same-code and same-label industry history, and 2023 Business Dynamics Statistics sector flows. These vintages and universes differ, so associations are descriptive rather than same-period or causal. Sector medians are not sector HHI values, legal antitrust markets, liability findings, or composite competition scores.
BDS sectors outside the joined concentration universe: 11 Agriculture, forestry, fishing and hunting; 55 Management of companies and enterprises.
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.