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.

2 / 4

01 / 541820

Public relations agencies

Professional, scientific, and technical services

HHI73.7Revenue$15.8B

Evidence profile

02 / 561920

Convention and trade show organizers

Administrative and support and waste management and remediation services

HHI78.8Revenue$17.4B

Evidence profile

Research workflow

Carry the selected industries into analysis and publication2 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 industryPublic relations agenciesNAICS 541820 / Professional, scientific, and technical services

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 HHI78.8Convention and trade show organizers

Largest selected revenue$17.4BConvention and trade show organizers

Sector scope2Cross-sector screen

HHI disclosure gaps02 published in selection

Reusable selection

Combined JSON2 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 541820; Public relations agencies
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 561920

Convention and trade show organizers

Administrative and support and waste management and remediation services

Mean gap2.3 pts

Concentration0.9 pts

Scale3.6 pts

National percentile positionsReferenceNeighbor

HHI1.1 gap73.778.8

CR41.3 gap14.4%13.3%

CR80.3 gap20.1%20%

Revenue2.7 gap$15.8B$17.4B

Jobs3.9 gap65K74.7K

Firms4.3 gap8.1K6.3K

Closest dimension: CR8 (0.3 pts). Widest: Firms (4.3 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 / 20222 strict / 2 selected

Herfindahl-Hirschman Index / HHI points

Shared signed-change scale across this selection

National median +3.6 pts

Lower changeZeroHigher change

541820Strict match

Public relations agencies

Professional, scientific, and technical services

2017114.7202273.7Change-41 pts-35.7%

National rank #421 of 54322.5th percentile

561920Strict match

Convention and trade show organizers

Administrative and support and waste management and remediation services

2017176.9202278.8Change-98.1 pts-55.5%

National rank #478 of 54312th percentile

Change benchmark

Paired coverage: 543 / 789
National median: +3.6 pts
Selected pairs: 2 / 2
Largest selected move: -98.1 pts

Convention and trade show organizers 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	541820	561920
+3.6 pts	-41 pts#421 of 543	-98.1 pts#478 of 543
+0.2 pts	-4.2 pts#645 of 781	-7.8 pts#727 of 781
+0.5 pts	-6 pts#704 of 783	-7 pts#726 of 783
+$3B	+$3.3B#376 of 789	+$1B#540 of 789
+1,474	+8,750#195 of 789	-18,356#762 of 789
0	+282#177 of 789	+1,316#83 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: 2; six-digit rows
Sectors: 2; parent contexts
Bridged: 0/2; 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 54

Professional, scientific, and technical services

541820

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

Parent sector / NAICS 56

Administrative and support and waste management and remediation services

561920

2022 sector distribution

Median HHI: 182; 44 detailed rows
Median CR4: 23.5%; Published values
Selected here: 1; Not a sector aggregate

2017-2022 strict history

Median HHI change: +10.7; HHI points
Higher HHI: 61.5%; of published pairs
Coverage: 60.5%; 26 strict pairs

2023 BDS rates

Entry: 12.905%; establishments
Exit: 11.833%; establishments
Net jobs: -1.087%; net rate
Reallocation: 27.485%; excess rate

Compare parent sectorsSeparate structure and flow plane Joined sector JSON2 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	Public relations agencies541820	Convention and trade show organizers561920
HHIRevenue-based HHI	28450th percentile	73.721st percentile / rank #539 of 679	78.822nd percentile / rank #531 of 679
CR4Largest four firms	30.6%50th percentile	14.4%20th percentile / rank #719 of 897	13.3%19th percentile / rank #730 of 897
CR8Largest eight firms	42.8%50th percentile	20.1%20th percentile / rank #718 of 899	20%20th percentile / rank #721 of 899
RevenueRevenue	$14.5B50th percentile	$15.8B52nd percentile / rank #429 of 899	$17.4B55th percentile / rank #405 of 899
EmploymentEmployment	40.1K50th percentile	65K63rd percentile / rank #336 of 899	74.7K67th percentile / rank #301 of 899
FirmsEmployer firms	1.2K50th percentile	8.1K83rd percentile / rank #157 of 899	6.3K78th percentile / rank #196 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.