Detailed-industry lab

Industry comparison studio

Compare official Census industry measures and matched 2017-2022 observations. Industry categories, broad sectors, and curated antitrust markets remain distinct.

Universe899Detailed rows

Measures6Fixed benchmarks

Coverage2017–23Three Census layers

Comparable here

National six-digit rows sharing the employer-firm universe and revenue-based concentration basis; signed changes require an identical code, level, sector, and label in both Census tables.

Still requires judgment

A relative rank is a screening signal. Product and geographic market definition, competitive effects, entry, and legal conclusions require separate evidence.

Selection console

Choose two to four detailed industries

Every rank and percentile uses the same 899 six-digit NAICS rows, so hierarchy level stays fixed across the comparison.

4 / 4

01 / 621210

Offices of dentists

Health care and social assistance

HHI5.5Revenue$160.3B

Evidence profile

02 / 238220

Plumbing, heating, and air-conditioning contractors

Construction

HHI9.3Revenue$297.6B

Evidence profile

03 / 541110

Offices of lawyers

Professional, scientific, and technical services

HHI11.4Revenue$356B

Evidence profile

04 / 238210

Electrical contractors and other wiring installation contractors

Construction

HHI11.6Revenue$249.2B

Evidence profile

Research workflow

Carry the selected industries into analysis and publication4 canonical industry profiles / 0 of 6 currently saved

Atlas workspace Draft brief

Relative percentile matrix

Compare position before comparing raw scale

Every measure uses a fixed 0-100 percentile benchmark. Exact raw values, national ranks, and disclosure gaps remain visible beside the shared 50th-percentile marker.

Benchmark universe / 899 industries

Focal industryOffices of dentistsNAICS 621210 / Health care and social assistance

01 / percentile profile

HHI

Revenue-based HHI

Detailed median284

02 / percentile profile

CR4

Largest four firms

Detailed median30.6%

03 / percentile profile

CR8

Largest eight firms

Detailed median42.8%

04 / percentile profile

Revenue

Detailed median$14.5B

05 / percentile profile

Employment

Detailed median40.1K

06 / percentile profile

Firms

Employer firms

Detailed median1.2K

Highest selected HHI11.6Electrical contractors and other wiring installation contractors

Largest selected revenue$356BOffices of lawyers

Sector scope3Cross-sector screen

HHI disclosure gaps04 published in selection

Reusable selection

Combined JSON4 exact Census rows Combined CSVNotebook-ready download

Census structure neighborhood

Discover comparable industry fingerprints

Find six-digit industries with the smallest mean gap across national percentile positions, using only dimensions published for the reference row.

Reference industry

Measurement lens

Candidate scope

Reference: NAICS 621210; Offices of dentists
Fixed benchmark: 899; National six-digit rows
Matched dimensions: 6 / 6; HHI, CR4, CR8, Revenue, Jobs, Firms
Eligible candidates: 678; 898 rows in selected scope

Nearest published fingerprints

Lower gaps mean closer national percentile positions across the matched dimensions.

10 nearest shown

Neighbor 01 / NAICS 238220

Plumbing, heating, and air-conditioning contractors

Construction

Mean gap1.5 pts

Concentration1.4 pts

Scale1.5 pts

National percentile positionsReferenceNeighbor

HHI1.6 gap5.59.3

CR41.4 gap3.9%4.7%

CR81.3 gap5.7%6.7%

Revenue4.0 gap$160.3B$297.6B

Jobs0.4 gap1.1M1.2M

Firms0.2 gap121K112.1K

Closest dimension: Firms (0.2 pts). Widest: Revenue (4.0 pts).

Profile Pair JSON Nearest CSV

Two-vintage comparison

Compare how the selected rows moved, not only where they landed

The same six Census measures, strict matching rule, and national detailed-industry benchmark now travel with the selection.

2017 / 20224 strict / 4 selected

Herfindahl-Hirschman Index / HHI points

Shared signed-change scale across this selection

National median +3.6 pts

Lower changeZeroHigher change

621210Strict match

Offices of dentists

Health care and social assistance

20172.720225.5Change+2.8 pts+103.7%

National rank #283 of 54348th percentile

238220Strict match

Plumbing, heating, and air-conditioning contractors

Construction

20177.120229.3Change+2.2 pts+31%

National rank #290 of 54346.7th percentile

541110Strict match

Offices of lawyers

Professional, scientific, and technical services

20177.8202211.4Change+3.6 pts+46.2%

National rank #273 of 54349.8th percentile

238210Strict match

Electrical contractors and other wiring installation contractors

Construction

20178.9202211.6Change+2.7 pts+30.3%

National rank #284 of 54347.8th percentile

Change benchmark

Paired coverage: 543 / 789
National median: +3.6 pts
Selected pairs: 4 / 4
Largest selected move: +3.6 pts

Offices of lawyers has the largest absolute published move in this selection.

Open national change plane Selection history JSON Selection history CSV

2017 source 2022 source

Six-measure change ledger

Change in six Census measures for the selected industries
National median	621210	238220	541110	238210
+3.6 pts	+2.8 pts#283 of 543	+2.2 pts#290 of 543	+3.6 pts#273 of 543	+2.7 pts#284 of 543
+0.2 pts	+1.3 pts#322 of 781	+0.5 pts#363 of 781	+0.9 pts#347 of 781	+0.2 pts#386 of 781
+0.5 pts	+1.8 pts#292 of 783	+0.8 pts#357 of 783	+1.3 pts#327 of 783	+0.9 pts#351 of 783
+$3B	+$34.4B#70 of 789	+$91.4B#24 of 789	+$72.6B#34 of 789	+$77.8B#31 of 789
+1,474	+85,142#34 of 789	+148.8K#15 of 789	+196.1K#11 of 789	+122.9K#19 of 789
0	-4,332#787 of 789	+10,527#11 of 789	-6,878#788 of 789	+6,788#20 of 789

Cross-grain research context

Move between industry, sector, and market evidence without mixing them

Keep the selected six-digit cohort fixed while inspecting broad-sector flows or exact curated market bridges. Every layer retains its own universe, vintage, and permitted use.

Cohort: 4; six-digit rows
Sectors: 3; parent contexts
Bridged: 0/4; 0 markets
Evidence: 0; records + reports

2017 / Industry baselineStrict same-code and same-label Census rows

2022 / Current structureIndustry values and parent-sector distributions

2023 / Broad-sector flowsBDS establishment and job-flow rates

Parent sector / NAICS 62

Health care and social assistance

621210

2022 sector distribution

Median HHI: 35.8; 39 detailed rows
Median CR4: 8.4%; Published values
Selected here: 1; Not a sector aggregate

2017-2022 strict history

Median HHI change: +1.4; HHI points
Higher HHI: 53.8%; of published pairs
Coverage: 68.4%; 26 strict pairs

2023 BDS rates

Entry: 10.783%; establishments
Exit: 7.708%; establishments
Net jobs: 4.089%; net rate
Reallocation: 18.899%; excess rate

Parent sector / NAICS 23

Construction

238220 238210

2022 sector distribution

Median HHI: 19.4; 31 detailed rows
Median CR4: 6.4%; Published values
Selected here: 2; Not a sector aggregate

2017-2022 strict history

Median HHI change: +1.6; HHI points
Higher HHI: 62.5%; of published pairs
Coverage: 77.4%; 24 strict pairs

2023 BDS rates

Entry: 13.016%; establishments
Exit: 11.082%; establishments
Net jobs: 3.24%; net rate
Reallocation: 26.939%; excess rate

Parent sector / NAICS 54

Professional, scientific, and technical services

541110

2022 sector distribution

Median HHI: 94.9; 48 detailed rows
Median CR4: 17.8%; Published values
Selected here: 1; Not a sector aggregate

2017-2022 strict history

Median HHI change: +0.1; HHI points
Higher HHI: 50.0%; of published pairs
Coverage: 69.6%; 32 strict pairs

2023 BDS rates

Entry: 12.473%; establishments
Exit: 11.031%; establishments
Net jobs: 2.438%; net rate
Reallocation: 25.267%; excess rate

Compare parent sectorsSeparate structure and flow plane Joined sector JSON3 exact rows Full BDS historiesSelected sectors plus national series Joined sector CSVNotebook-ready context rows BDS history CSV1978-2023 selected-sector series

Raw values and benchmark positions

Inspect the exact benchmark ledger

Ranks run from highest to lowest. Percentiles show the share of published detailed-industry values at or below each row.

Raw Census values and detailed-industry benchmark positions for selected industries
Measure	Detailed median	Offices of dentists621210	Plumbing, heating, and air-conditioning contractors238220	Offices of lawyers541110	Electrical contractors and other wiring installation contractors238210
HHIRevenue-based HHI	28450th percentile	5.53rd percentile / rank #661 of 679	9.34th percentile / rank #650 of 679	11.45th percentile / rank #645 of 679	11.65th percentile / rank #644 of 679
CR4Largest four firms	30.6%50th percentile	3.9%3rd percentile / rank #872 of 897	4.7%4th percentile / rank #859 of 897	4%3rd percentile / rank #870 of 897	4.8%5th percentile / rank #857 of 897
CR8Largest eight firms	42.8%50th percentile	5.7%3rd percentile / rank #876 of 899	6.7%4th percentile / rank #864 of 899	6.4%3rd percentile / rank #870 of 899	7.8%5th percentile / rank #855 of 899
RevenueRevenue	$14.5B50th percentile	$160.3B92nd percentile / rank #75 of 899	$297.6B96th percentile / rank #39 of 899	$356B97th percentile / rank #28 of 899	$249.2B94th percentile / rank #51 of 899
EmploymentEmployment	40.1K50th percentile	1.1M98th percentile / rank #23 of 899	1.2M98th percentile / rank #19 of 899	1.3M98th percentile / rank #15 of 899	968.7K97th percentile / rank #27 of 899
FirmsEmployer firms	1.2K50th percentile	121K99th percentile / rank #8 of 899	112.1K99th percentile / rank #10 of 899	156.8K100th percentile / rank #3 of 899	79K99th percentile / rank #13 of 899

NAICS industries are national statistical screening categories, not legally defined antitrust markets. Cross-sector comparisons describe relative Census position; they do not establish product substitutability, geographic scope, market power, or liability.