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 48-49 / 4.8% of map areaTransportation and warehousingColor / Sector identity / Categorical / no ordering
- 2022 structure
- 277.4
- median detailed-industry HHI
- 38 / 54 published
- 2017-2022 strict change
- -0.8
- median HHI-point change
- 66.0% strict-pair coverage
- 2023 business flows
- 14.851%
- establishment entry rate
- BDS broad-sector rate
- FY2024 merger review
- 75
- acquired-entity transactions
- 3.8% / rank 8 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 sliceDescriptive evidence plane
Median HHI and Entry rate
Selected sectorNAICS 48-49 / Transportation and warehousing
- Median HHI
- 277.4
- Entry rate
- 14.851%
- 2023 employment
- 6.5M
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.