Antitrust Radar

Economy-wide observatory

U.S. industry concentration atlas

How concentrated each U.S. industry is, from broad sectors down to detailed lines of business, with each industry's sales, value of shipments, or revenue, and employment from the Census Bureau. Census categories are statistical groupings and are not necessarily antitrust markets.

899Detailed industriessix-digit NAICS679Published HHI220 withheld68Top decileHHI >= 1,081$50.3TRevenue represented2022 Census

Sector signal plane

Where sector medians sit in the Census universe

17 sectorscircle = detailed rowsOpen priority list
Sector median HHI and CR4 signal planeSeventeen Census sectors plotted by median detailed-industry HHI and median CR4, with screen, watch, and priority review HHI regions. Circle size represents the number of detailed industries. Each point links to the filtered industry atlas.Median detailed-industry HHIMedian CR4 (%)Mining, quarrying, and oil and gas extraction: median HHI 559.2; median CR4 43.7% across 21 detailed industries.21Utilities: median HHI 615.9; median CR4 41.6% across 14 detailed industries.22Construction: median HHI 19.4; median CR4 6.4% across 31 detailed industries.Manufacturing: median HHI 439.3; median CR4 38.5% across 346 detailed industries.Wholesale trade: median HHI 360.8; median CR4 29.9% across 69 detailed industries.Retail trade: median HHI 133.9; median CR4 32.8% across 57 detailed industries.Transportation and warehousing: median HHI 277.4; median CR4 40% across 54 detailed industries.Information: median HHI 638.2; median CR4 45.6% across 29 detailed industries.51Finance and insurance: median HHI 405.8; median CR4 31% across 29 detailed industries.Real estate and rental and leasing: median HHI 116.9; median CR4 29.4% across 24 detailed industries.Professional, scientific, and technical services: median HHI 94.9; median CR4 17.8% across 48 detailed industries.Administrative and support and waste management and remediation services: median HHI 182; median CR4 23.5% across 44 detailed industries.Educational services: median HHI 75.6; median CR4 15% across 14 detailed industries.Health care and social assistance: median HHI 35.8; median CR4 8.4% across 39 detailed industries.Arts, entertainment, and recreation: median HHI 192.2; median CR4 21.2% across 25 detailed industries.Accommodation and food services: median HHI 15; median CR4 8% across 15 detailed industries.Other services (except public administration): median HHI 54.3; median CR4 12.8% across 40 detailed industries.
Below 100100-299300-499500+
Priority review / NAICS 51Information
Median HHI638.2Median CR445.6%Sector rank1 / 17Top-decile industries4 / 29

13.8% of detailed industries in this sector fall in the national HHI top decile.

Open sector evidence

NAICS hierarchy navigator

Move through the official industry classification

Select any branch to carry its detailed-industry scope into the concentration plane, economy map, and evidence directory below.

Current branchTransportation and warehousingSector / level 2 of 6
Detailed descendants54Six-digit records in scope
Published HHI70.4%38 published / 16 withheld
Revenue$1.3TExact Census hierarchy row

Direct subsector records

Transportation and warehousing / bars normalized to the largest visible revenue value

Selected classification

NAICS 48-49

Transportation and warehousing

Sector with 54 detailed descendants.

Median HHI
277.4
Revenue
$1.3T
Employment
6M
Employer firms
240K

Curated antitrust layer

1 market / 2 policy records / 2 reports

Profile AtlasDataTrace 2017-2022

NAICS hierarchy is an economic classification, not a legal product or geographic market definition.

Economy concentration plane

See scale and concentration together

Revenue uses a logarithmic axis, circle area follows employer-firm count, and color identifies the two-digit NAICS sector.

Current scopeTransportation and warehousing54 detailed rows
Published HHI3870.4% of scope
Median HHI277.4Median CR4 40.0%
Revenue represented$1.3T16 HHI disclosure-withheld

Detailed-industry cross-section

38 published industries plotted by revenue, HHI, employer-firm count, and NAICS sector.

16 withheld
NAICS 484121: General freight trucking, long-distance, truckload; HHI 98; $172.7B revenue; 53,705 employer firmsNAICS 484110: General freight trucking, local; HHI 3.1; $54.7B revenue; 43,243 employer firmsNAICS 484220: Specialized freight (except used goods) trucking, local; HHI 2.4; $57.5B revenue; 31,927 employer firmsNAICS 488510: Freight transportation arrangement; HHI 43.4; $134.9B revenue; 17,130 employer firmsNAICS 484230: Specialized freight (except used goods) trucking, long-distance; HHI 74; $52.6B revenue; 10,701 employer firmsNAICS 488410: Motor vehicle towing; HHI 7.1; $12B revenue; 10,066 employer firmsNAICS 484210: Used household and office goods moving; HHI 111.7; $20.1B revenue; 9,519 employer firmsNAICS 484122: General freight trucking, long-distance, less than truckload; HHI 572.3; $65.7B revenue; 7,675 employer firmsNAICS 492210: Local messengers and local delivery; HHI 1,074.7; $23.6B revenue; 4,956 employer firmsNAICS 485320: Limousine service; HHI 55.2; $4.4B revenue; 4,125 employer firmsNAICS 488190: Other support activities for air transportation; HHI 115.2; $23.7B revenue; 3,513 employer firmsNAICS 485410: School and employee bus transportation; HHI 324.1; $12.2B revenue; 2,502 employer firmsNAICS 488490: Other support activities for road transportation; HHI 172; $5.2B revenue; 2,221 employer firmsNAICS 485999: All other transit and ground passenger transportation; HHI 143.1; $2.4B revenue; 1,618 employer firmsNAICS 488991: Packing and crating; HHI 100.3; $3.3B revenue; 1,404 employer firmsNAICS 485510: Charter bus industry; HHI 100.3; $4.4B revenue; 1,074 employer firmsNAICS 488119: Other airport operations; HHI 247.1; $14.3B revenue; 1,071 employer firmsNAICS 488330: Navigational services to shipping; HHI 163.5; $5B revenue; 936 employer firmsNAICS 488390: Other support activities for water transportation; HHI 251; $2.6B revenue; 617 employer firmsNAICS 487110: Scenic and sightseeing transportation, land; HHI 199.8; $1.2B revenue; 598 employer firmsNAICS 488210: Support activities for rail transportation; HHI 258.7; $7.6B revenue; 581 employer firmsNAICS 481219: Other nonscheduled air transportation; HHI 296; $2.3B revenue; 464 employer firmsNAICS 493130: Farm product warehousing and storage; HHI 118; $1B revenue; 411 employer firmsNAICS 481111: Scheduled passenger air transportation; HHI 1,465.5; $228.9B revenue; 372 employer firmsNAICS 483113: Coastal and great lakes freight transportation; HHI 503.3; $10B revenue; 334 employer firmsNAICS 483211: Inland water freight transportation; HHI 870.5; $7.6B revenue; 299 employer firmsNAICS 485113: Bus and other motor vehicle transit systems; HHI 757.3; $4.1B revenue; 273 employer firmsNAICS 488320: Marine cargo handling; HHI 592.9; $10.6B revenue; 270 employer firmsNAICS 483212: Inland water passenger transportation; HHI 423.6; $680.9M revenue; 267 employer firmsNAICS 488310: Port and harbor operations; HHI 600.8; $4.4B revenue; 263 employer firmsNAICS 487990: Scenic and sightseeing transportation, other; HHI 668.8; $776.6M revenue; 250 employer firmsNAICS 483111: Deep sea freight transportation; HHI 1,174; $9.8B revenue; 227 employer firmsNAICS 486210: Pipeline transportation of natural gas; HHI 837.6; $38.3B revenue; 161 employer firmsNAICS 486110: Pipeline transportation of crude oil; HHI 910.7; $15B revenue; 102 employer firmsNAICS 486910: Pipeline transportation of refined petroleum products; HHI 1,007; $14B revenue; 85 employer firmsNAICS 485119: Other urban transit systems; HHI 1,070.6; $227M revenue; 44 employer firmsNAICS 485111: Mixed mode transit systems; HHI 1,638; $8.9M revenue; 20 employer firmsNAICS 483112: Deep sea passenger transportation; HHI 3,436.1; $23.2B revenue; 72 employer firms

Selected record

Deep sea passenger transportation

NAICS 483112
HHI
3,436.1
Revenue
$23.2B
CR4
97.7%
Employer firms
72
Open industry profile

High-HHI tail

Highest measured rows

01Deep sea passenger transportationNAICS 483112 / $23.2B3,436.102Mixed mode transit systemsNAICS 485111 / $8.9M1,63803Scheduled passenger air transportationNAICS 481111 / $228.9B1,465.504Deep sea freight transportationNAICS 483111 / $9.8B1,17405Local messengers and local deliveryNAICS 492210 / $23.6B1,074.706Other urban transit systemsNAICS 485119 / $227M1,070.6

Circle position and rank use Census-published HHI only. Disclosure-withheld values remain in the directory and are excluded from measured comparisons.

Economy composition map

See where economic scale and concentration meet

Each tile is one six-digit NAICS industry. Area follows the selected economic measure; color carries either published HHI or sector identity.

Size tiles by
Color tiles by
Current scopeTransportation and warehousing54 detailed rows
Area / Revenue$1.3TSales, shipments, or revenue
Color / NAICS sector38 published16 HHI disclosure-withheld
Scope median HHI277.4Unweighted across published rows

Area = revenue / Color = naics sector

1 sector groups / 54 positive-value industries

2022 Economic Census

Active industry

Scheduled passenger air transportationNAICS 481111

Revenue

$228.9B

17.39% of current scope / 17.4% of sector

HHI
1,465.5
CR4
72.9%
Employment
461,514
Employer firms
372
Open evidence profile

Largest by revenue

01Scheduled passenger air transportation481111$228.9B02General freight trucking, long-distance, truckload484121$172.7B03Freight transportation arrangement488510$134.9B04Couriers and express delivery services492110$132.3B

Tile area represents revenue within this detailed-industry scope. HHI is a national NAICS screen, not a legal antitrust market. Disclosure-withheld values remain mapped and use the gray band.

Census industry directory

Compare the full NAICS hierarchy

HHI and concentration ratios are based on national sales, value of shipments, or revenue for employer firms.

54 of 1,866
NAICS 483112Deep sea passenger transportationDetailed industry
HHI3,436.1CR497.7%Revenue$23.2B
NAICS 485111Mixed mode transit systemsDetailed industry
HHI1,638CR465.8%Revenue$8.9M
NAICS 481111Scheduled passenger air transportationDetailed industry
HHI1,465.5CR472.9%Revenue$228.9B
NAICS 483111Deep sea freight transportationDetailed industry
HHI1,174CR461.3%Revenue$9.8B
NAICS 492210Local messengers and local deliveryDetailed industry
HHI1,074.7CR455.5%Revenue$23.6B
NAICS 485119Other urban transit systemsDetailed industry
HHI1,070.6CR456.6%Revenue$227M
NAICS 486910Pipeline transportation of refined petroleum productsDetailed industry
HHI1,007CR452.5%Revenue$14B
NAICS 486110Pipeline transportation of crude oilDetailed industry
HHI910.7CR452.5%Revenue$15B
NAICS 483211Inland water freight transportationDetailed industry
HHI870.5CR454.9%Revenue$7.6B
NAICS 486210Pipeline transportation of natural gasDetailed industry
HHI837.6CR451.7%Revenue$38.3B
NAICS 485113Bus and other motor vehicle transit systemsDetailed industry
HHI757.3CR449.8%Revenue$4.1B
NAICS 487990Scenic and sightseeing transportation, otherDetailed industry
HHI668.8CR442%Revenue$776.6M
NAICS 488310Port and harbor operationsDetailed industry
HHI600.8CR441.1%Revenue$4.4B
NAICS 488320Marine cargo handlingDetailed industry
HHI592.9CR441.3%Revenue$10.6B
NAICS 484122General freight trucking, long-distance, less than truckloadDetailed industry
HHI572.3CR440.8%Revenue$65.7B
NAICS 483113Coastal and great lakes freight transportationDetailed industry
HHI503.3CR435.9%Revenue$10B
NAICS 483212Inland water passenger transportationDetailed industry
HHI423.6CR431.6%Revenue$680.9M
NAICS 485410School and employee bus transportationDetailed industry
HHI324.1CR430.1%Revenue$12.2B
NAICS 481219Other nonscheduled air transportationDetailed industry
HHI296CR424.7%Revenue$2.3B
NAICS 488210Support activities for rail transportationDetailed industry
HHI258.7CR423.9%Revenue$7.6B
NAICS 488390Other support activities for water transportationDetailed industry
HHI251CR424.7%Revenue$2.6B
NAICS 488119Other airport operationsDetailed industry
HHI247.1CR426%Revenue$14.3B
NAICS 487110Scenic and sightseeing transportation, landDetailed industry
HHI199.8CR420.3%Revenue$1.2B
NAICS 488490Other support activities for road transportationDetailed industry
HHI172CR420.1%Revenue$5.2B
NAICS 488330Navigational services to shippingDetailed industry
HHI163.5CR417.5%Revenue$5B

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.

U.S. Industry Concentration Atlas | Antitrust Radar