01 / 611630
Language schools
Educational services
HHI266.3Revenue$1.3B
Evidence profileIndustry atlas
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.
02 / 611691
Exam preparation and tutoring
Educational services
HHI186.6Revenue$7.3B
Evidence profile03 / 611420
Computer training
Educational services
HHI177.4Revenue$4.5B
Evidence profile04 / 611692
Automobile driving schools
Educational services
HHI121.1Revenue$1.3B
Evidence profileResearch workflow
Carry the selected industries into analysis and publication4 canonical industry profiles / 0 of 6 currently savedRelative 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.
Focal industryLanguage schoolsNAICS 611630 / Educational services
01 / percentile profile
Detailed median284HHI
Revenue-based HHI
02 / percentile profile
Detailed median30.6%CR4
Largest four firms
03 / percentile profile
Detailed median42.8%CR8
Largest eight firms
04 / percentile profile
Detailed median$14.5BRevenue
Revenue
05 / percentile profile
Detailed median40.1KEmployment
Employment
06 / percentile profile
Detailed median1.2KFirms
Employer firms
Arrow keys move across industries and measures. Home and End move to the first and last selected industry within a measure.
Highest selected HHI266.3Language schools
Largest selected revenue$7.3BExam preparation and tutoring
Sector scope1Single-sector screen
HHI disclosure gaps04 published in selection
Reusable selection
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.
Measurement lens
Candidate scope
- Reference
- NAICS 611630
- Language schools
- 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.
Neighbor 01 / NAICS 323120
Support activities for printing
Manufacturing
Mean gap3.0 pts
Concentration0.6 pts
Scale5.4 pts
National percentile positionsReferenceNeighbor
HHI0.5 gap266.3262.5
CR40.2 gap29.2%28.9%
CR81.2 gap36.1%36.8%
Revenue5.9 gap$1.3B$2.8B
Jobs4.8 gap19.3K16K
Firms5.4 gap1.3K867
Closest dimension: CR4 (0.2 pts). Widest: Revenue (5.9 pts).
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
Lower changeZeroHigher change
2017305.22022266.3Change-38.9 pts-12.7%
National rank #415 of 54323.6th percentile
201780.72022186.6Change+105.9 pts+131.2%
National rank #87 of 54384.1th percentile
2017221.12022177.4Change-43.7 pts-19.8%
National rank #425 of 54321.8th percentile
201750.12022121.1Change+71 pts+141.7%
National rank #117 of 54378.6th percentile
Change benchmark
- Paired coverage
- 543 / 789
- National median
- +3.6 pts
- Selected pairs
- 4 / 4
- Largest selected move
- +105.9 pts
Exam preparation and tutoring has the largest absolute published move in this selection.
Six-measure change ledger
| Measure | National median | 611630 | 611691 | 611420 | 611692 |
|---|---|---|---|---|---|
| +3.6 pts | -38.9 pts#415 of 543 | +105.9 pts#87 of 543 | -43.7 pts#425 of 543 | +71 pts#117 of 543 | |
| +0.2 pts | -1.2 pts#516 of 781 | +7.7 pts#83 of 781 | -4.2 pts#646 of 781 | +6.7 pts#99 of 781 | |
| +0.5 pts | -4 pts#650 of 783 | +8.6 pts#62 of 783 | -5.4 pts#696 of 783 | +8.7 pts#58 of 783 | |
| +$3B | -$73.8M#722 of 789 | +$2B#447 of 789 | +$2B#463 of 789 | +$484.9M#615 of 789 | |
| +1,474 | -2,100#646 of 789 | -1,450#614 of 789 | +15,693#129 of 789 | +2,450#347 of 789 | |
| 0 | +31#290 of 789 | +403#157 of 789 | +472#141 of 789 | +55#266 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
- 1
- 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 61
Educational services
2022 sector distribution
- Median HHI
- 75.6
- 14 detailed rows
- Median CR4
- 15.0%
- Published values
- Selected here
- 4
- Not a sector aggregate
2017-2022 strict history
- Median HHI change
- -1.8
- HHI points
- Higher HHI
- 40.0%
- of published pairs
- Coverage
- 71.4%
- 10 strict pairs
2023 BDS rates
- Entry
- 11.167%
- establishments
- Exit
- 8.441%
- establishments
- Net jobs
- 4.326%
- net rate
- Reallocation
- 12.518%
- excess rate
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.
| Measure | Detailed median | Language schools611630 | Exam preparation and tutoring611691 | Computer training611420 | Automobile driving schools611692 |
|---|---|---|---|---|---|
| HHIRevenue-based HHI | 28450th percentile | 266.348th percentile / rank #351 of 679 | 186.637th percentile / rank #427 of 679 | 177.436th percentile / rank #435 of 679 | 121.129th percentile / rank #480 of 679 |
| CR4Largest four firms | 30.6%50th percentile | 29.2%47th percentile / rank #476 of 897 | 22.1%33rd percentile / rank #602 of 897 | 22.2%33rd percentile / rank #599 of 897 | 18.7%28th percentile / rank #649 of 897 |
| CR8Largest eight firms | 42.8%50th percentile | 36.1%42nd percentile / rank #524 of 899 | 29.9%32nd percentile / rank #616 of 899 | 29.3%31st percentile / rank #625 of 899 | 24.4%25th percentile / rank #678 of 899 |
| RevenueRevenue | $14.5B50th percentile | $1.3B5th percentile / rank #857 of 899 | $7.3B30th percentile / rank #628 of 899 | $4.5B19th percentile / rank #731 of 899 | $1.3B5th percentile / rank #856 of 899 |
| EmploymentEmployment | 40.1K50th percentile | 19.3K30th percentile / rank #631 of 899 | 111.4K76th percentile / rank #217 of 899 | 29.9K41st percentile / rank #529 of 899 | 18K28th percentile / rank #651 of 899 |
| FirmsEmployer firms | 1.2K50th percentile | 1.3K51st percentile / rank #441 of 899 | 8.6K83rd percentile / rank #153 of 899 | 1.9K56th percentile / rank #399 of 899 | 2.4K61st percentile / rank #354 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.