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2022 Economic Census / NAICS 48-49

Transportation and warehousing

The four largest firms in Transportation and warehousing accounted for 17.2% of the industry's 2022 sales, value of shipments, or revenue, and its concentration (HHI 100) ranks 5 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.

SectorTransportation and warehousingUpper quartile

Revenue-based HHI

99.8

48-49
03,500
Same-level median 2376th percentile

National rank

#5

of 17 published

Sector rank

N/A

of 38 published

Largest 4 firms

17.2%

Share of industry revenue

Revenue

$1.3T

Sales, shipments, or revenue

Employer firms

237.4K

237,360

Employment

6M

6,031,549

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 profileTransportation and warehousingSector · HHI 99.8 · CR4 17.2%

  • 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 Transportation and warehousing

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

NAICS 48-49

Median HHI-point change across strict six-digit matches

-0.8 pts#12 highest change of 17 sectors

Economy median

+1.6 ptsAcross sector medians
2017 paired median
259
2022 paired median
251
Published pairs
35 of 53
Direction mix
15 up / 20 down

Interpretation

The typical published detailed-industry HHI moved -0.8 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 48-49 broad-sector contract.
Direct broad-sector join
Business Applications
34,982
Jul 2026 monthly count
Application annual change
+16.3%
Same month one year earlier
U.S. application share
6.0%
Share of national applications
High-propensity mix
15.2%
5,333 applications
Projected formations
1,366
Modeled four-quarter source projection
Establishment entry rate
14.9%
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 Transportation and warehousingBusiness 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
395,704 applications / latest 12 months65,910 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 48-49 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

Trade + transport signals across linked sectors

4 Census sectors share these BLS source-group readings; none is allocated a separate value.
Shared BLS group
Job openings
4.4%
Jun 2026 JOLTS rate
Hires
3.9%
Jun 2026 JOLTS rate
Quits
2.5%
Jun 2026 JOLTS rate
Layoffs + discharges
1.1%
Jun 2026 JOLTS rate
All employees
28.7M
28,708 thousand payroll jobs
Weekly hours
34.1
0.0 hrs from year earlier
Hourly earnings
$32.00
+3.2% 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 Trade, transportation, and utilities source group. The measures keep their published denominators and are not a labor-market power score.8.0%6.0%4.0%2.0%0.0%Jul 2021Oct 2022Jan 2024Apr 2025Jun 2026
+0.9 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 Trade, transportation, and utilities source group, each independently indexed to 100 in the first displayed month. Native levels remain in the readouts.12511811010395Aug 2021Nov 2022Feb 2024May 2025Jul 2026
-0.1% payroll jobs / year earlier+3.2% nominal earnings / year earlier

Declared classification bridge

One profile, two source-owned industry groups

Selected Census parent
NAICS 48-49
Transportation and warehousing
JOLTS group
400000
Trade, transportation, and utilities
CES supersector
40
Trade, transportation, and utilities
Mapped Census sectors
4
22, 42, 44-45, 48-49

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 Transportation and warehousing sector (NAICS 48-49) is one of 4 Census-sector contexts attached to the broader Trade, transportation, and utilities JOLTS and Trade, transportation, and utilities 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

Transportation in the U.S. value-added map

Exact broad-sector bridge from Census NAICS 48-49 to BEA line 40.
Exact sector context
GDP share
3.3%
2025 current-dollar composition
Real growth
-1.2%
2026-Q1 annualized BEA convention
Growth contribution
-0.04 pp
2026-Q1 contribution to real GDP growth
Real quantity index
117.6
2026-Q1 / 2017=100
Current value added
$1.05T
2026-Q1 seasonally adjusted annual rate

Annual composition trajectory

Share of current-dollar GDP

1997-2025
Transportation annual share of current-dollar GDPBEA value-added share from 1997 through 2025. This is an accounting composition measure, not a market share.4.0%3.5%3.0%2.5%2.0%19972004201120182025
3.0%1997+0.3 pplong-run shift3.3%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 40 and Census NAICS 48-49 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 Transportation and warehousing sector

Parent NAICS 48-49 supplies a classification directory only; no requirement coefficient is assigned to this narrower profile.
Sector directory only
BEA lines in scope
8
inside NAICS 48-49
Annual matrices
28
1997-2024
Raw matrix cells
15,904
retained without aggregation
Net requirement
Not constructed
not additive across buyer columns
Own requirement
Not constructed
no sector diagonal constructed

Published production directory

8 BEA industries map to this parent sector

481Air transportation482Rail transportation483Water transportation484Truck transportation485Transit and ground passenger transportation486Pipeline transportation487OSOther transportation and support activities493Warehousing and storage
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 8 BEA summary industries classified inside parent sector Transportation and warehousing (NAICS 48-49). No coefficient is averaged, summed across buyer columns, or allocated to Transportation and warehousing (NAICS 48-49). 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 Transportation and warehousing with the national series while preserving the BDS universe.
Transportation and warehousing
14.851%
2023 sector rate
United States
10.608%
2023 national rate
Sector gap
+4.243 pp
Above U.S. rate
Joined-sector rank
#1
of 17 by magnitude

Establishment entry rate

Transportation and warehousing and the United States

Entering establishments as a share of the Census BDS establishment denominator.
Transportation and warehousingUnited States
2023Transportation and warehousing14.851%United States10.608%Gap +4.243 pp
1978: United States 15.146%; Transportation and warehousing 17.057%1979: United States 13.970%; Transportation and warehousing 16.926%1980: United States 12.806%; Transportation and warehousing 15.195%1981: United States 12.797%; Transportation and warehousing 14.445%1982: United States 12.464%; Transportation and warehousing 14.198%1983: United States 13.389%; Transportation and warehousing 14.787%1984: United States 14.534%; Transportation and warehousing 16.488%1985: United States 13.810%; Transportation and warehousing 16.472%1986: United States 14.095%; Transportation and warehousing 16.690%1987: United States 14.325%; Transportation and warehousing 17.582%1988: United States 13.959%; Transportation and warehousing 17.200%1989: United States 13.368%; Transportation and warehousing 15.845%1990: United States 12.683%; Transportation and warehousing 15.065%1991: United States 12.358%; Transportation and warehousing 15.002%1992: United States 11.577%; Transportation and warehousing 14.664%1993: United States 11.509%; Transportation and warehousing 14.703%1994: United States 11.885%; Transportation and warehousing 15.485%1995: United States 12.058%; Transportation and warehousing 15.986%1996: United States 11.795%; Transportation and warehousing 15.076%1997: United States 12.200%; Transportation and warehousing 15.274%1998: United States 11.438%; Transportation and warehousing 15.116%1999: United States 11.115%; Transportation and warehousing 14.603%2000: United States 10.848%; Transportation and warehousing 14.125%2001: United States 10.990%; Transportation and warehousing 13.998%2002: United States 11.911%; Transportation and warehousing 13.577%2003: United States 11.425%; Transportation and warehousing 14.578%2004: United States 11.511%; Transportation and warehousing 14.180%2005: United States 11.615%; Transportation and warehousing 14.021%2006: United States 12.495%; Transportation and warehousing 15.357%2007: United States 11.761%; Transportation and warehousing 14.576%2008: United States 10.307%; Transportation and warehousing 12.974%2009: United States 9.281%; Transportation and warehousing 11.577%2010: United States 9.495%; Transportation and warehousing 11.235%2011: United States 9.886%; Transportation and warehousing 13.641%2012: United States 10.018%; Transportation and warehousing 12.953%2013: United States 9.807%; Transportation and warehousing 12.285%2014: United States 9.906%; Transportation and warehousing 12.450%2015: United States 10.025%; Transportation and warehousing 13.904%2016: United States 10.194%; Transportation and warehousing 13.136%2017: United States 9.675%; Transportation and warehousing 12.081%2018: United States 9.414%; Transportation and warehousing 12.820%2019: United States 9.613%; Transportation and warehousing 13.476%2020: United States 9.637%; Transportation and warehousing 13.440%2021: United States 10.845%; Transportation and warehousing 17.614%2022: United States 11.651%; Transportation and warehousing 19.321%2023: United States 10.608%; Transportation and warehousing 14.851%
1978
17.057%
-2.206 pp to latest
2018
12.82%
Higher than 2018
Series high / 2022
19.321%
Highest published rate
Series low / 2010
11.235%
Lowest published rate

Exact annual series

Sector and national values

2023 back to 1978
Establishment entry rate for Transportation and warehousing and the United States, with the sector-minus-national gap.
Year48-49United StatesGap
202314.851%10.608%+4.243 pp
202219.321%11.651%+7.67 pp
202117.614%10.845%+6.769 pp
202013.44%9.637%+3.803 pp
201913.476%9.613%+3.863 pp
201812.82%9.414%+3.406 pp
201712.081%9.675%+2.406 pp
201613.136%10.194%+2.942 pp
201513.904%10.025%+3.879 pp
201412.45%9.906%+2.544 pp
201312.285%9.807%+2.478 pp
201212.953%10.018%+2.935 pp
201113.641%9.886%+3.755 pp
201011.235%9.495%+1.74 pp
200911.577%9.281%+2.296 pp
200812.974%10.307%+2.667 pp
200714.576%11.761%+2.815 pp
200615.357%12.495%+2.862 pp
200514.021%11.615%+2.406 pp
200414.18%11.511%+2.669 pp
200314.578%11.425%+3.153 pp
200213.577%11.911%+1.666 pp
200113.998%10.99%+3.008 pp
200014.125%10.848%+3.277 pp
199914.603%11.115%+3.488 pp
199815.116%11.438%+3.678 pp
199715.274%12.2%+3.074 pp
199615.076%11.795%+3.281 pp
199515.986%12.058%+3.928 pp
199415.485%11.885%+3.6 pp
199314.703%11.509%+3.194 pp
199214.664%11.577%+3.087 pp
199115.002%12.358%+2.644 pp
199015.065%12.683%+2.382 pp
198915.845%13.368%+2.477 pp
198817.2%13.959%+3.241 pp
198717.582%14.325%+3.257 pp
198616.69%14.095%+2.595 pp
198516.472%13.81%+2.662 pp
198416.488%14.534%+1.954 pp
198314.787%13.389%+1.398 pp
198214.198%12.464%+1.734 pp
198114.445%12.797%+1.648 pp
198015.195%12.806%+2.389 pp
197916.926%13.97%+2.956 pp
197817.057%15.146%+1.911 pp

Sector structure lab

Map concentration inside Transportation and warehousing

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 industries54Six-digit rows
Median HHI277.438 published
Median CR440.0%54 published
HHI 2,500+1Detailed rows
Published weight79.9%Revenue in chart

Bubble area = revenue

38 rows have both HHI and CR4 / 16 HHI values withheld

Top-five revenue share / 55.8%
NAICS 484121: General freight trucking, long-distance, truckload; HHI 98; CR4 16.7%; Revenue $172.7B; 13.12% of sectorNAICS 488510: Freight transportation arrangement; HHI 43.4; CR4 9.9%; Revenue $134.9B; 10.25% of sectorNAICS 484122: General freight trucking, long-distance, less than truckload; HHI 572.3; CR4 40.8%; Revenue $65.7B; 4.99% of sectorNAICS 484220: Specialized freight (except used goods) trucking, local; HHI 2.4; CR4 1.8%; Revenue $57.5B; 4.37% of sectorNAICS 484110: General freight trucking, local; HHI 3.1; CR4 2.3%; Revenue $54.7B; 4.15% of sectorNAICS 484230: Specialized freight (except used goods) trucking, long-distance; HHI 74; CR4 14.3%; Revenue $52.6B; 3.99% of sectorNAICS 486210: Pipeline transportation of natural gas; HHI 837.6; CR4 51.7%; Revenue $38.3B; 2.91% of sectorNAICS 488190: Other support activities for air transportation; HHI 115.2; CR4 15.4%; Revenue $23.7B; 1.80% of sectorNAICS 492210: Local messengers and local delivery; HHI 1,074.7; CR4 55.5%; Revenue $23.6B; 1.79% of sectorNAICS 483112: Deep sea passenger transportation; HHI 3,436.1; CR4 97.7%; Revenue $23.2B; 1.77% of sectorNAICS 484210: Used household and office goods moving; HHI 111.7; CR4 18.6%; Revenue $20.1B; 1.53% of sectorNAICS 486110: Pipeline transportation of crude oil; HHI 910.7; CR4 52.5%; Revenue $15B; 1.14% of sectorNAICS 488119: Other airport operations; HHI 247.1; CR4 26.0%; Revenue $14.3B; 1.08% of sectorNAICS 486910: Pipeline transportation of refined petroleum products; HHI 1,007; CR4 52.5%; Revenue $14B; 1.07% of sectorNAICS 485410: School and employee bus transportation; HHI 324.1; CR4 30.1%; Revenue $12.2B; 0.93% of sectorNAICS 488410: Motor vehicle towing; HHI 7.1; CR4 4.1%; Revenue $12B; 0.91% of sectorNAICS 488320: Marine cargo handling; HHI 592.9; CR4 41.3%; Revenue $10.6B; 0.81% of sectorNAICS 483113: Coastal and great lakes freight transportation; HHI 503.3; CR4 35.9%; Revenue $10B; 0.76% of sectorNAICS 483111: Deep sea freight transportation; HHI 1,174; CR4 61.3%; Revenue $9.8B; 0.74% of sectorNAICS 488210: Support activities for rail transportation; HHI 258.7; CR4 23.9%; Revenue $7.6B; 0.58% of sectorNAICS 483211: Inland water freight transportation; HHI 870.5; CR4 54.9%; Revenue $7.6B; 0.58% of sectorNAICS 488490: Other support activities for road transportation; HHI 172; CR4 20.1%; Revenue $5.2B; 0.39% of sectorNAICS 488330: Navigational services to shipping; HHI 163.5; CR4 17.5%; Revenue $5B; 0.38% of sectorNAICS 488310: Port and harbor operations; HHI 600.8; CR4 41.1%; Revenue $4.4B; 0.34% of sectorNAICS 485320: Limousine service; HHI 55.2; CR4 12.6%; Revenue $4.4B; 0.34% of sectorNAICS 485510: Charter bus industry; HHI 100.3; CR4 15.6%; Revenue $4.4B; 0.33% of sectorNAICS 485113: Bus and other motor vehicle transit systems; HHI 757.3; CR4 49.8%; Revenue $4.1B; 0.31% of sectorNAICS 488991: Packing and crating; HHI 100.3; CR4 14.4%; Revenue $3.3B; 0.25% of sectorNAICS 488390: Other support activities for water transportation; HHI 251; CR4 24.7%; Revenue $2.6B; 0.20% of sectorNAICS 485999: All other transit and ground passenger transportation; HHI 143.1; CR4 18.6%; Revenue $2.4B; 0.18% of sectorNAICS 481219: Other nonscheduled air transportation; HHI 296; CR4 24.7%; Revenue $2.3B; 0.18% of sectorNAICS 487110: Scenic and sightseeing transportation, land; HHI 199.8; CR4 20.3%; Revenue $1.2B; 0.09% of sectorNAICS 493130: Farm product warehousing and storage; HHI 118; CR4 13.2%; Revenue $1B; 0.08% of sectorNAICS 487990: Scenic and sightseeing transportation, other; HHI 668.8; CR4 42.0%; Revenue $776.6M; 0.06% of sectorNAICS 483212: Inland water passenger transportation; HHI 423.6; CR4 31.6%; Revenue $680.9M; 0.05% of sectorNAICS 485119: Other urban transit systems; HHI 1,070.6; CR4 56.6%; Revenue $227M; 0.02% of sectorNAICS 485111: Mixed mode transit systems; HHI 1,638; CR4 65.8%; Revenue $8.9M; 0.00% of sectorNAICS 481111: Scheduled passenger air transportation; HHI 1,465.5; CR4 72.9%; Revenue $228.9B; 17.39% 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.

16 rows / 20.1% of revenue
492110Couriers and express delivery services$132.3B / 10.05%493110General warehousing and storage$42.2B / 3.21%481211Nonscheduled chartered passenger air transportation$24.7B / 1.88%485310Taxi and ridesharing services$14.4B / 1.09%

Active detailed industry

Scheduled passenger air transportationNAICS 481111
HHI1,465.5
CR472.9%
Revenue$228.9B#1 / 17.39% of sector
Open evidence profile

Largest by revenue

Hover or focus to inspect

Top 8
01Scheduled passenger air transportation481111$228.9B17.4%02General freight trucking, long-distance, truckload484121$172.7B13.1%03Freight transportation arrangement488510$134.9B10.3%04Couriers and express delivery services492110$132.3B10.1%05General freight trucking, long-distance, less than truckload484122$65.7B5.0%06Specialized freight (except used goods) trucking, local484220$57.5B4.4%07General freight trucking, local484110$54.7B4.2%08Specialized freight (except used goods) trucking, long-distance484230$52.6B4.0%

Continue analysis

Compare top fourCurrent revenue leadersSector JSON54 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 Transportation and warehousing to descendant curated markets, public enforcement records, research outputs, and the next evidence queue.

Observatory coverage

1 curated market

NAICS 48-49 / national sector screen

Detailed industries

54

38 HHI published

Curated markets

1

1 exact NAICS crosswalks

Policy actions

2

2 linked reports

Evidence sources

3

1 Census HHI at 2,500+

Curated market crosswalk

Definitions and market metrics nested below this sector

1 of 54 detailed NAICS rows have exact links

NAICS crosswalk 481111

Domestic airlines

Agency defined

Domestic scheduled airline passenger traffic

Market HHI

Not published

2026 evidence

Census HHI

1,465.5

2022 NAICS row

Market CR4

69%

incomplete

Policy docket

2

2 reports

Geographic scope
United States domestic itineraries
Measurement
Carrier share of domestic scheduled passengers

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 firms17.2%
CR8Eight largest firms24.4%
CR20Twenty largest firms31.8%
CR50Fifty largest firms40.8%

Same-level benchmark

Position in the hierarchy

MeasureThis rowMedian
HHI99.823
CR417.2%6.9%
Revenue$1.3T$1.3T
Firms237.4K265.5K

HHI distance from median

+76.8

NAICS hierarchy

Move up or down the classification tree

Level 2 of 6
48-49 Transportation and warehousing

Direct child categories

481Air transportation483Water transportation484Truck transportation485Transit and ground passenger transportation486Pipeline transportation487Scenic and sightseeing transportation488Support activities for transportation492Couriers and messengers493Warehousing and storage

Federal merger-review composition

Where NAICS 48-49 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

Transportation and warehousing

8 published 3-digit rows

Exact code + normalized label
73adjusted transactionsRank 8 of 19classified HSR sectors
Published share
4.2%
of adjusted release transactions
Agency clearances
4
2.2% of release / rank 9
Second Requests
3
8.1% of release / rank 5
Intra-industry flags
3
3.8% of release / rank 6

FY2024 sector aggregate

Transportation and warehousing

9 published 3-digit rows

Exact code + normalized label
75adjusted transactionsRank 8 of 19classified HSR sectors
Published share
3.8%
of adjusted release transactions
Agency clearances
5
2.7% of release / rank 12
Second Requests
3
5.1% of release / rank 8
Intra-industry flags
0
0.0% of release / rank 15

Adjacent-release shift

Stable HSR sector code and label

FY2023 to FY2024

Exact HSR sector code 48-49 is published in FY2023 and FY2024 with a stable source label. The deltas compare adjacent release aggregates without recoding their 3-digit rows.

Transactions
+2
Published share
-0.4 pp
Clearances
+1
Second Requests
0
Intra-industry
-3
Published rows
+1

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 48-49Download 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
Transportation and warehousing industry concentration (NAICS 48-49) | Antitrust Radar