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2022 Economic Census / NAICS 62

Health care and social assistance

The four largest firms in Health care and social assistance accounted for 4.4% of the industry's 2022 sales, value of shipments, or revenue, and its concentration (HHI 10) ranks 14 of 17 sectors in the Economic Census. What is HHI?

National employer-firm concentration for this sector, measured from sales, value of shipments, or revenue. Census categories are statistical groupings, not necessarily antitrust markets.

SectorHealth care and social assistanceLower quartile

Revenue-based HHI

10.4

62
03,500
Same-level median 2324th percentile

National rank

#14

of 17 published

Sector rank

N/A

of 30 published

Largest 4 firms

4.4%

Share of industry revenue

Revenue

$3.3T

Sales, shipments, or revenue

Employer firms

691.3K

691,347

Employment

21.8M

21,801,532

Four source-bounded systems

Sector evidence passport

Open sector atlas

The passport juxtaposes four source-bounded sector signals for navigation. Each cell retains its own period, denominator, source, and rank universe; the cells are not combined into a sector score, merger rate, legal market, causal estimate, or assessment of competitive harm.

Industry profileHealth care and social assistanceSector · HHI 10.4 · CR4 4.4%

  • GeographyUnited StatesNational firm totals
  • UniverseEmployer firmsFirms with payroll
  • MeasurementRevenue concentrationSales, shipments, or revenue
  • Permitted useScreening onlyNot a legal market definition

Longitudinal sector pulse

How typical detailed industries changed inside Health care and social assistance

Compare six strict-match medians, their publication coverage, and each sector's position among 17 economy-wide rows.

NAICS 62

Median HHI-point change across strict six-digit matches

+1.4 pts#10 highest change of 17 sectors

Economy median

+1.6 ptsAcross sector medians
2017 paired median
35.8
2022 paired median
35.8
Published pairs
26 of 38
Direction mix
14 up / 12 down

Interpretation

The typical published detailed-industry HHI moved +1.4 pts. This distribution statistic is separate from the official broad-sector HHI row.

Classification boundary: 1 changed and 0 new detailed rows remain outside strict deltas.

Open economy sector atlas Detailed change JSONDetailed change CSV
Sector rows summarize strict six-digit NAICS matches. Their medians are not sector HHI values, legal antitrust markets, liability findings, or causal estimates. Vintage medians and the median of row-level changes are distinct distribution statistics and need not reconcile. Publication coverage varies by metric, and revenue changes are nominal.

Census formation and sector context

Monthly formation signals beside annual sector structure

60 monthly observations for the exact NAICS 62 broad-sector contract.
Direct broad-sector join
Business Applications
33,953
Jul 2026 monthly count
Application annual change
+13.5%
Same month one year earlier
U.S. application share
5.9%
Share of national applications
High-propensity mix
66.8%
22,672 applications
Projected formations
3,245
Modeled four-quarter source projection
Establishment entry rate
10.8%
2023 annual BDS rate

Monthly source trajectory

Applications and high-propensity applications

Aug 2021 to Jul 2026
Business ApplicationsHigh-Propensity Business Applications
Sixty-month business application trajectory for Health care and social assistanceBusiness Applications and the high-propensity subset share one count axis. The chapter describes the selected broad sector.50K37.5K25K12.5K0Aug 2021Nov 2022Feb 2024May 2025Jul 2026
388,437 applications / latest 12 months264,643 high-propensity / latest 12 months

Source clocks

Four releases, three measurement systems

Business Formation Statistics
2026-07
monthly applications and projected formations
Business Dynamics Statistics
2023
annual employer-establishment flows
Economic Census structure
2022
median across detailed-industry HHI rows
Strict concentration history
2017-2022
same-code and same-label detailed pairs
Source custody
Exact broad-sector boundary

NAICS 62 is the exact broad-sector contract used by this chapter. This atlas joins only exact broad-sector NAICS contracts across three separate Census systems: monthly Business Formation Statistics, annual Business Dynamics Statistics, and Economic Census industry structure. The release clocks, populations, denominators, and measures remain distinct. Positions are descriptive context, not composite competition scores, causal estimates, legal antitrust markets, or evidence that applications, entry, concentration, and competitive effects are interchangeable.

BLS labor and payroll context

Education + health signals across linked sectors

2 Census sectors share these BLS source-group readings; none is allocated a separate value.
Shared BLS group
Job openings
5.0%
Jun 2026 JOLTS rate
Hires
2.8%
Jun 2026 JOLTS rate
Quits
1.7%
Jun 2026 JOLTS rate
Layoffs + discharges
0.7%
Jun 2026 JOLTS rate
All employees
28M
27,962 thousand payroll jobs
Weekly hours
32.8
+0.1 hrs from year earlier
Hourly earnings
$36.18
+1.7% from year earlier

JOLTS worker flows

Openings and quits on native rate scales

Jul 2021 to Jun 2026
Job openings rateQuits rate
Sixty-month JOLTS openings and quits ratesJob openings and quits rates for the mapped Education and health services source group. The measures keep their published denominators and are not a labor-market power score.10.0%7.5%5.0%2.5%0.0%Jul 2021Oct 2022Jan 2024Apr 2025Jun 2026
-0.5 pp openings / year earlier-0.2 pp quits / year earlier

CES payroll context

Payroll jobs and nominal earnings, indexed

Aug 2021 = 100
Payroll jobsHourly earnings
Sixty-month CES payroll jobs and hourly earnings indexesPayroll jobs and nominal average hourly earnings for the mapped Private education and health services source group, each independently indexed to 100 in the first displayed month. Native levels remain in the readouts.12511811010395Aug 2021Nov 2022Feb 2024May 2025Jul 2026
+2.0% payroll jobs / year earlier+1.7% nominal earnings / year earlier

Declared classification bridge

One profile, two source-owned industry groups

Selected Census parent
NAICS 62
Health care and social assistance
JOLTS group
600000
Education and health services
CES supersector
65
Private education and health services
Mapped Census sectors
2
61, 62

Independent release clocks

Two monthly systems, no merged series

JOLTS worker flows
2026-06
60 displayed months · latest preliminary
CES payroll context
2026-07
60 displayed months · latest preliminary
Source custody
Shared-group boundary

The selected Health care and social assistance sector (NAICS 62) is one of 2 Census-sector contexts attached to the broader Education and health services JOLTS and Private education and health services CES groups. Their published values cannot be allocated to this sector alone. JOLTS industry rates describe national labor demand and worker-flow activity in broad BLS industry groups. They do not measure employer concentration, monopsony power, wages, bargaining power, job quality, local labor-market conditions, worker substitutability, a legal labor market, or the competitive cause of a change. The job openings rate uses employment plus openings as its denominator. Hires, quits, and layoffs and discharges use employment. Rates may be compared across published industry groups within the same measure, but different measures must not be added together or treated as a common flow balance. CES employment, hours, and earnings describe national payroll jobs and establishment averages in broad private-industry groups. They do not measure unique workers, vacancies, employer concentration, monopsony power, bargaining power, job quality, a local or occupational labor market, a legal antitrust market, or the competitive cause of a change. All-employee hourly earnings are current-dollar averages and are not adjusted for inflation. Changes can reflect shifts in industry and worker composition. Employment is reported in thousands of payroll jobs, so multiple jobholders may be counted more than once. Compare industries only within the same published measure; do not add or ratio the three measures into a common score. The two releases remain separate and are not combined into a labor-market, monopsony, competition, welfare, or causal score.

BEA industry output context

Health care in the U.S. value-added map

Exact broad-sector bridge from Census NAICS 62 to BEA line 76.
Exact sector context
GDP share
7.7%
2025 current-dollar composition
Real growth
+2.3%
2026-Q1 annualized BEA convention
Growth contribution
+0.18 pp
2026-Q1 contribution to real GDP growth
Real quantity index
134.1
2026-Q1 / 2017=100
Current value added
$2.47T
2026-Q1 seasonally adjusted annual rate

Annual composition trajectory

Share of current-dollar GDP

1997-2025
Health care annual share of current-dollar GDPBEA value-added share from 1997 through 2025. This is an accounting composition measure, not a market share.9.0%8.0%7.0%6.0%5.0%19972004201120182025
6.0%1997+1.7 pplong-run shift7.7%2025
Source custodyU.S. Bureau of Economic Analysis / 2026-06-25GDP by Industry, value-added tablesOfficial BEA releaseAccess reviewed 2026-08-15
Exact broad-sector boundary

BEA line 76 and Census NAICS 62 share the declared broad-sector classification used by this profile. BEA value added measures an industry's contribution to GDP. It is not sales, gross output, profit, a markup, market share, concentration, a legal antitrust market, or evidence of competitive harm or causation. Current-dollar value-added shares reflect both prices and quantities. Real value added uses chained 2017 dollars and is suitable for growth comparisons, but chained-dollar industry components are not additive. Quarterly levels are seasonally adjusted at annual rates, and quarterly growth and contribution measures retain BEA's published annualized convention. The BEA table contains nested industries, cross-industry aggregates, and addenda. Only the 20 major-industry rows form the composition view; summing those rows with their children, parent aggregates, or addenda would double count activity.

BEA domestic production requirements

Production industries inside the broader Health care and social assistance sector

Parent NAICS 62 supplies a classification directory only; no requirement coefficient is assigned to this narrower profile.
Sector directory only
BEA lines in scope
4
inside NAICS 62
Annual matrices
28
1997-2024
Raw matrix cells
7,952
retained without aggregation
Net requirement
Not constructed
not additive across buyer columns
Own requirement
Not constructed
no sector diagonal constructed

Published production directory

4 BEA industries map to this parent sector

621Ambulatory health care services622Hospitals623Nursing and residential care facilities624Social assistance
Source custodyU.S. Bureau of Economic Analysis / 2025-09-25Input-Output Accounts, domestic requirements tablesOfficial BEA tablesAccess reviewed 2026-08-15
Directory boundary

This chapter is a directory of 4 BEA summary industries classified inside parent sector Health care and social assistance (NAICS 62). No coefficient is averaged, summed across buyer columns, or allocated to Health care and social assistance (NAICS 62). A domestic total-requirements coefficient reports the U.S. output required from the supplier-row industry, directly and indirectly, per dollar of output delivered to final use by the buyer-column industry. It is not observed spending, a contract, a firm supplier link, market share, concentration, a legal antitrust market, competitive harm, or causation. Rows are supplying industries and columns are buyer industries delivering output to final use. Reading down a buyer column traces upstream requirements; reading across a supplier row traces the industries whose final-use output requires that supplier. BEA requirements tables use fixed input structures, constant returns to scale, and no input substitution. Coefficients are average, ex-post industry relationships; domestic import adjustments are estimated and do not identify firm-specific sourcing. Diagonal values include an industry's own direct and indirect requirements. Published negative coefficients are retained as accounting adjustments and must not be ranked as positive supply requirements.

Longitudinal sector profile

Business formation and job flows since 1978

46 annual BDS records compare Health care and social assistance with the national series while preserving the BDS universe.
Health care and social assistance
10.783%
2023 sector rate
United States
10.608%
2023 national rate
Sector gap
+0.175 pp
Above U.S. rate
Joined-sector rank
#9
of 17 by magnitude

Establishment entry rate

Health care and social assistance and the United States

Entering establishments as a share of the Census BDS establishment denominator.
Health care and social assistanceUnited States
2023Health care and social assistance10.783%United States10.608%Gap +0.175 pp
1978: United States 15.146%; Health care and social assistance 12.391%1979: United States 13.970%; Health care and social assistance 11.052%1980: United States 12.806%; Health care and social assistance 10.810%1981: United States 12.797%; Health care and social assistance 11.260%1982: United States 12.464%; Health care and social assistance 11.013%1983: United States 13.389%; Health care and social assistance 11.073%1984: United States 14.534%; Health care and social assistance 9.981%1985: United States 13.810%; Health care and social assistance 10.000%1986: United States 14.095%; Health care and social assistance 10.542%1987: United States 14.325%; Health care and social assistance 10.298%1988: United States 13.959%; Health care and social assistance 10.127%1989: United States 13.368%; Health care and social assistance 9.806%1990: United States 12.683%; Health care and social assistance 9.422%1991: United States 12.358%; Health care and social assistance 9.177%1992: United States 11.577%; Health care and social assistance 9.014%1993: United States 11.509%; Health care and social assistance 8.665%1994: United States 11.885%; Health care and social assistance 8.716%1995: United States 12.058%; Health care and social assistance 8.964%1996: United States 11.795%; Health care and social assistance 8.980%1997: United States 12.200%; Health care and social assistance 10.158%1998: United States 11.438%; Health care and social assistance 8.819%1999: United States 11.115%; Health care and social assistance 8.720%2000: United States 10.848%; Health care and social assistance 8.844%2001: United States 10.990%; Health care and social assistance 9.401%2002: United States 11.911%; Health care and social assistance 11.162%2003: United States 11.425%; Health care and social assistance 9.173%2004: United States 11.511%; Health care and social assistance 8.936%2005: United States 11.615%; Health care and social assistance 8.990%2006: United States 12.495%; Health care and social assistance 9.884%2007: United States 11.761%; Health care and social assistance 9.373%2008: United States 10.307%; Health care and social assistance 8.560%2009: United States 9.281%; Health care and social assistance 8.132%2010: United States 9.495%; Health care and social assistance 8.283%2011: United States 9.886%; Health care and social assistance 7.721%2012: United States 10.018%; Health care and social assistance 7.767%2013: United States 9.807%; Health care and social assistance 7.945%2014: United States 9.906%; Health care and social assistance 8.491%2015: United States 10.025%; Health care and social assistance 9.261%2016: United States 10.194%; Health care and social assistance 8.767%2017: United States 9.675%; Health care and social assistance 8.528%2018: United States 9.414%; Health care and social assistance 8.266%2019: United States 9.613%; Health care and social assistance 8.812%2020: United States 9.637%; Health care and social assistance 8.750%2021: United States 10.845%; Health care and social assistance 9.789%2022: United States 11.651%; Health care and social assistance 9.807%2023: United States 10.608%; Health care and social assistance 10.783%
1978
12.391%
-1.608 pp to latest
2018
8.266%
Higher than 2018
Series high / 1978
12.391%
Highest published rate
Series low / 2011
7.721%
Lowest published rate

Exact annual series

Sector and national values

2023 back to 1978
Establishment entry rate for Health care and social assistance and the United States, with the sector-minus-national gap.
Year62United StatesGap
202310.783%10.608%+0.175 pp
20229.807%11.651%-1.844 pp
20219.789%10.845%-1.056 pp
20208.75%9.637%-0.887 pp
20198.812%9.613%-0.801 pp
20188.266%9.414%-1.148 pp
20178.528%9.675%-1.147 pp
20168.767%10.194%-1.427 pp
20159.261%10.025%-0.764 pp
20148.491%9.906%-1.415 pp
20137.945%9.807%-1.862 pp
20127.767%10.018%-2.251 pp
20117.721%9.886%-2.165 pp
20108.283%9.495%-1.212 pp
20098.132%9.281%-1.149 pp
20088.56%10.307%-1.747 pp
20079.373%11.761%-2.388 pp
20069.884%12.495%-2.611 pp
20058.99%11.615%-2.625 pp
20048.936%11.511%-2.575 pp
20039.173%11.425%-2.252 pp
200211.162%11.911%-0.749 pp
20019.401%10.99%-1.589 pp
20008.844%10.848%-2.004 pp
19998.72%11.115%-2.395 pp
19988.819%11.438%-2.619 pp
199710.158%12.2%-2.042 pp
19968.98%11.795%-2.815 pp
19958.964%12.058%-3.094 pp
19948.716%11.885%-3.169 pp
19938.665%11.509%-2.844 pp
19929.014%11.577%-2.563 pp
19919.177%12.358%-3.181 pp
19909.422%12.683%-3.261 pp
19899.806%13.368%-3.562 pp
198810.127%13.959%-3.832 pp
198710.298%14.325%-4.027 pp
198610.542%14.095%-3.553 pp
198510.0%13.81%-3.81 pp
19849.981%14.534%-4.553 pp
198311.073%13.389%-2.316 pp
198211.013%12.464%-1.451 pp
198111.26%12.797%-1.537 pp
198010.81%12.806%-1.996 pp
197911.052%13.97%-2.918 pp
197812.391%15.146%-2.755 pp

Sector structure lab

Map concentration inside Health care and social assistance

Each bubble is one six-digit industry. Horizontal position is revenue-based HHI, vertical position is CR4, and bubble area follows the selected economic scale.

Detailed industries39Six-digit rows
Median HHI35.830 published
Median CR48.4%39 published
HHI 2,500+0Detailed rows
Published weight91.2%Revenue in chart

Bubble area = revenue

30 rows have both HHI and CR4 / 9 HHI values withheld

Top-five revenue share / 69.4%
NAICS 621111: Offices of physicians (except mental health specialists); HHI 18.5; CR4 6.2%; Revenue $630.2B; 18.92% of sectorNAICS 621210: Offices of dentists; HHI 5.5; CR4 3.9%; Revenue $160.3B; 4.81% of sectorNAICS 623110: Nursing care facilities (skilled nursing facilities); HHI 21; CR4 6.8%; Revenue $135.4B; 4.07% of sectorNAICS 621610: Home health care services; HHI 42.2; CR4 9.1%; Revenue $114.2B; 3.43% of sectorNAICS 624120: Services for the elderly and persons with disabilities; HHI 7.3; CR4 3.4%; Revenue $77.3B; 2.32% of sectorNAICS 621498: All other outpatient care centers; HHI 27.7; CR4 7.2%; Revenue $69.6B; 2.09% of sectorNAICS 624410: Child care services; HHI 22.5; CR4 7.9%; Revenue $58.4B; 1.75% of sectorNAICS 622310: Specialty (except psychiatric and substance abuse) hospitals; HHI 334.8; CR4 28.6%; Revenue $58.4B; 1.75% of sectorNAICS 621493: Freestanding ambulatory surgical and emergency centers; HHI 116.4; CR4 17.5%; Revenue $44.1B; 1.32% of sectorNAICS 621491: HMO medical centers; HHI 2,449.2; CR4 88.8%; Revenue $43.6B; 1.31% of sectorNAICS 623311: Continuing care retirement communities; HHI 35.5; CR4 8.0%; Revenue $41.1B; 1.23% of sectorNAICS 623312: Assisted living facilities for the elderly; HHI 86.7; CR4 15.7%; Revenue $38.9B; 1.17% of sectorNAICS 621420: Outpatient mental health and substance abuse centers; HHI 9.2; CR4 3.8%; Revenue $30.6B; 0.92% of sectorNAICS 621999: All other miscellaneous ambulatory health care services; HHI 167.8; CR4 21.4%; Revenue $25.4B; 0.76% of sectorNAICS 621512: Diagnostic imaging centers; HHI 76.1; CR4 12.9%; Revenue $25B; 0.75% of sectorNAICS 624110: Child and youth services; HHI 11.7; CR4 4.0%; Revenue $24.1B; 0.72% of sectorNAICS 621330: Offices of mental health practitioners (except physicians); HHI 6.6; CR4 3.6%; Revenue $23.3B; 0.70% of sectorNAICS 623220: Residential mental health and substance abuse facilities; HHI 36.1; CR4 9.8%; Revenue $21.4B; 0.64% of sectorNAICS 621320: Offices of optometrists; HHI 21.7; CR4 7.8%; Revenue $20.1B; 0.60% of sectorNAICS 621991: Blood and organ banks; HHI 573.6; CR4 41.5%; Revenue $19.9B; 0.60% of sectorNAICS 621399: Offices of all other miscellaneous health practitioners; HHI 85.4; CR4 15.8%; Revenue $18.3B; 0.55% of sectorNAICS 624210: Community food services; HHI 37.9; CR4 6.1%; Revenue $17.6B; 0.53% of sectorNAICS 624230: Emergency and other relief services; HHI 477.1; CR4 35.5%; Revenue $15B; 0.45% of sectorNAICS 624310: Vocational rehabilitation services; HHI 35.5; CR4 8.0%; Revenue $14.3B; 0.43% of sectorNAICS 624229: Other community housing services; HHI 58.4; CR4 13.9%; Revenue $11.8B; 0.36% of sectorNAICS 621112: Offices of physicians, mental health specialists; HHI 16.2; CR4 5.9%; Revenue $10.2B; 0.31% of sectorNAICS 624221: Temporary shelters; HHI 21.9; CR4 6.0%; Revenue $8.8B; 0.26% of sectorNAICS 621391: Offices of podiatrists; HHI 11.1; CR4 4.8%; Revenue $5.4B; 0.16% of sectorNAICS 621410: Family planning centers; HHI 90.7; CR4 11.9%; Revenue $4.6B; 0.14% of sectorNAICS 622110: General medical and surgical hospitals; HHI 37.6; CR4 8.4%; Revenue $1.3T; 38.13% of sector
0-499500-9991,000-1,4991,500-2,4992,500+Withheld

Disclosure lane

Rows missing HHI or CR4 stay outside the numerical plane.

9 rows / 8.8% of revenue
621511Medical laboratories$56.1B / 1.68%624190Other individual and family services$52B / 1.56%621340Offices of physical, occupational and speech therapists, and audiologists$42.8B / 1.29%623210Residential intellectual and developmental disability facilities$37.8B / 1.14%

Active detailed industry

General medical and surgical hospitalsNAICS 622110
HHI37.6
CR48.4%
Revenue$1.3T#1 / 38.13% of sector
Open evidence profile

Largest by revenue

Hover or focus to inspect

Top 8
01General medical and surgical hospitals622110$1.3T38.1%02Offices of physicians (except mental health specialists)621111$630.2B18.9%03Offices of dentists621210$160.3B4.8%04Nursing care facilities (skilled nursing facilities)623110$135.4B4.1%05Home health care services621610$114.2B3.4%06Services for the elderly and persons with disabilities624120$77.3B2.3%07All other outpatient care centers621498$69.6B2.1%08Child care services624410$58.4B1.8%

Continue analysis

Compare top fourCurrent revenue leadersSector JSON39 detailed rowsSector CSVNotebook-ready packet

Bubble size describes economic weight inside this NAICS sector. HHI and CR4 remain national statistical screens, not product-market definitions or findings of market power.

Sector intelligence dossier

From industry structure to antitrust evidence

Join the Census screen for Health care and social assistance to descendant curated markets, public enforcement records, research outputs, and the next evidence queue.

Observatory coverage

Research coverage gap

NAICS 62 / national sector screen

Detailed industries

39

30 HHI published

Curated markets

0

0 exact NAICS crosswalks

Policy actions

0

0 linked reports

Evidence sources

0

0 Census HHI at 2,500+

Explicit research gap

No descendant market dossier is curated yet

The sector remains fully available as a Census structure screen. Product boundaries, geographic scope, and market-specific public sources still need to be assembled before a legal-market bridge can be published.

Market-definition protocol

Start with published Census signals

621491HMO medical centers2,449.2621991Blood and organ banks573.6624230Emergency and other relief services477.1

Descendant NAICS codes provide a research crosswalk only. They do not make a curated product and geographic market equivalent to its Census industry, and market metrics are never aggregated into a sector score.

Review method

Firm concentration ladder

How much revenue the largest firms hold

Each rung widens the group of largest firms included in the Census concentration ratio.

CR4Four largest firms4.4%
CR8Eight largest firms6.7%
CR20Twenty largest firms11.7%
CR50Fifty largest firms18.9%

Same-level benchmark

Position in the hierarchy

MeasureThis rowMedian
HHI10.423
CR44.4%6.9%
Revenue$3.3T$1.3T
Firms691.3K265.5K

HHI distance from median

-12.6

NAICS hierarchy

Move up or down the classification tree

Level 2 of 6
62 Health care and social assistance

Direct child categories

621Ambulatory health care services622Hospitals623Nursing and residential care facilities624Social assistance

Federal merger-review composition

Where NAICS 62 appears in HSR review releases

Each release aggregates its own published acquired-entity 3-digit rows. Volume, review stages, labels, denominators, and source custody remain separate from the Census concentration screen.

Open filtered HSR atlas

FY2023 sector aggregate

Health care and social assistance

4 published 3-digit rows

Exact code + normalized label
63adjusted transactionsRank 10 of 19classified HSR sectors
Published share
3.6%
of adjusted release transactions
Agency clearances
24
13.0% of release / rank 2
Second Requests
5
13.5% of release / rank 2
Intra-industry flags
2
2.5% of release / rank 9

FY2024 sector aggregate

Health care and social assistance

4 published 3-digit rows

Exact code + normalized label
62adjusted transactionsRank 10 of 19classified HSR sectors
Published share
3.1%
of adjusted release transactions
Agency clearances
7
3.8% of release / rank 9
Second Requests
4
6.8% of release / rank 6
Intra-industry flags
4
5.0% of release / rank 7

Adjacent-release shift

Stable HSR sector code and label

FY2023 to FY2024

Exact HSR sector code 62 is published in FY2023 and FY2024 with a stable source label. The deltas compare adjacent release aggregates without recoding their 3-digit rows.

Transactions
-1
Published share
-0.5 pp
Clearances
-17
Second Requests
-1
Intra-industry
+2
Published rows
0

Interpretation boundary

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.

Intra-industry field

An intra-industry transaction means the acquiring and acquired persons both reported revenue in the same 3-digit NAICS code. It does not establish a horizontal overlap, relevant antitrust market, or competitive effect.

Nearest structural neighbors

Comparable fingerprints across the economy

Smallest mean national-percentile gaps across HHI, CR4, CR8, revenue, employment, and employer firms, using the same published dimensions as this row.

Evidence access

Reuse this exact row

Filtered JSONNAICS 62Download CSVOne-row data packetCensus source archiveEC2200SIZECONCEN

Source citation

U.S. Census Bureau, 2022 Economic Census, EC2200SIZECONCEN: Selected Sectors - Concentration of Largest Firms for the United States, released April 2025.

Industry screen, not market conclusion

A NAICS industry is a statistical classification, not a legally defined antitrust market. Use these national revenue concentration measures to screen where deeper product and geographic market analysis may be warranted, not to infer market power or liability.

Market definition method
Health care and social assistance industry concentration (NAICS 62) | Antitrust Radar