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2022 Economic Census / NAICS 51

Information

The four largest firms in Information accounted for 24.4% of the industry's 2022 sales, value of shipments, or revenue, and its concentration (HHI 232) ranks 1 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.

SectorInformationTop decile

Revenue-based HHI

231.6

51
03,500
Same-level median 23100th percentile

National rank

#1

of 17 published

Sector rank

N/A

of 17 published

Largest 4 firms

24.4%

Share of industry revenue

Revenue

$2.2T

Sales, shipments, or revenue

Employer firms

91.8K

91,800

Employment

4M

4,040,495

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 profileInformationSector · HHI 231.6 · CR4 24.4%

  • 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 Information

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

NAICS 51

Median HHI-point change across strict six-digit matches

+56.4 pts#1 highest change of 17 sectors

Economy median

+1.6 ptsAcross sector medians
2017 paired median
568.5
2022 paired median
741.4
Published pairs
6 of 11
Direction mix
3 up / 3 down

Interpretation

The typical published detailed-industry HHI moved +56.4 pts. This distribution statistic is separate from the official broad-sector HHI row.

Classification boundary: 1 changed and 17 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 51 broad-sector contract.
Direct broad-sector join
Business Applications
13,223
Jul 2026 monthly count
Application annual change
+41.4%
Same month one year earlier
U.S. application share
2.3%
Share of national applications
High-propensity mix
11.8%
1,562 applications
Projected formations
547
Modeled four-quarter source projection
Establishment entry rate
10.6%
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 InformationBusiness Applications and the high-propensity subset share one count axis. The chapter describes the selected broad sector.20K15K10K5K0Aug 2021Nov 2022Feb 2024May 2025Jul 2026
132,921 applications / latest 12 months19,120 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 51 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

Monthly labor demand beside payroll and earnings

Two BLS releases mapped through the sole declared NAICS 51 sector context.
Single-sector crosswalk
Job openings
3.1%
Jun 2026 JOLTS rate
Hires
2.9%
Jun 2026 JOLTS rate
Quits
1.1%
Jun 2026 JOLTS rate
Layoffs + discharges
2.0%
Jun 2026 JOLTS rate
All employees
2.8M
2,780 thousand payroll jobs
Weekly hours
37.1
0.0 hrs from year earlier
Hourly earnings
$55.70
+5.8% 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 Information source group. The measures keep their published denominators and are not a labor-market power score.10.0%7.5%5.0%2.5%0.0%Jul 2021Oct 2022Jan 2024Apr 2025Jun 2026
-1.0 pp openings / year earlier-0.4 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 Information source group, each independently indexed to 100 in the first displayed month. Native levels remain in the readouts.13012011010090Aug 2021Nov 2022Feb 2024May 2025Jul 2026
-2.8% payroll jobs / year earlier+5.8% nominal earnings / year earlier

Declared classification bridge

One profile, two source-owned industry groups

Selected Census parent
NAICS 51
Information
JOLTS group
510000
Information
CES supersector
50
Information
Mapped Census sectors
1
51

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
Single-sector bridge boundary

NAICS 51 is the sole declared Census-sector context for both the Information JOLTS group and the Information CES supersector, but the Census and BLS classification contracts remain distinct. 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

Information in the U.S. value-added map

Exact broad-sector bridge from Census NAICS 51 to BEA line 49.
Exact sector context
GDP share
5.5%
2025 current-dollar composition
Real growth
+13.0%
2026-Q1 annualized BEA convention
Growth contribution
+0.69 pp
2026-Q1 contribution to real GDP growth
Real quantity index
194.3
2026-Q1 / 2017=100
Current value added
$1.79T
2026-Q1 seasonally adjusted annual rate

Annual composition trajectory

Share of current-dollar GDP

1997-2025
Information annual share of current-dollar GDPBEA value-added share from 1997 through 2025. This is an accounting composition measure, not a market share.6.0%5.5%5.0%4.5%4.0%19972004201120182025
4.6%1997+0.9 pplong-run shift5.5%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 49 and Census NAICS 51 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 Information sector

Parent NAICS 51 supplies a classification directory only; no requirement coefficient is assigned to this narrower profile.
Sector directory only
BEA lines in scope
4
inside NAICS 51
Annual matrices
28
1997-2024
Raw matrix cells
7,952
retained without aggregation
Net requirement
Not constructed
not additive across buyer columns
Own requirement
Not constructed
no sector diagonal constructed

Published production directory

4 BEA industries map to this parent sector

511Publishing industries, except internet (includes software)512Motion picture and sound recording industries513Broadcasting and telecommunications514Data processing, internet publishing, and other information services
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 4 BEA summary industries classified inside parent sector Information (NAICS 51). No coefficient is averaged, summed across buyer columns, or allocated to Information (NAICS 51). 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 Information with the national series while preserving the BDS universe.
Information
10.578%
2023 sector rate
United States
10.608%
2023 national rate
Sector gap
-0.03 pp
Below U.S. rate
Joined-sector rank
#10
of 17 by magnitude

Establishment entry rate

Information and the United States

Entering establishments as a share of the Census BDS establishment denominator.
InformationUnited States
2023Information10.578%United States10.608%Gap -0.030 pp
1978: United States 15.146%; Information 12.773%1979: United States 13.970%; Information 12.581%1980: United States 12.806%; Information 12.761%1981: United States 12.797%; Information 13.677%1982: United States 12.464%; Information 13.087%1983: United States 13.389%; Information 13.680%1984: United States 14.534%; Information 18.676%1985: United States 13.810%; Information 14.773%1986: United States 14.095%; Information 13.724%1987: United States 14.325%; Information 16.056%1988: United States 13.959%; Information 14.189%1989: United States 13.368%; Information 16.830%1990: United States 12.683%; Information 13.806%1991: United States 12.358%; Information 17.385%1992: United States 11.577%; Information 12.862%1993: United States 11.509%; Information 12.635%1994: United States 11.885%; Information 13.708%1995: United States 12.058%; Information 14.500%1996: United States 11.795%; Information 16.133%1997: United States 12.200%; Information 15.010%1998: United States 11.438%; Information 16.975%1999: United States 11.115%; Information 16.724%2000: United States 10.848%; Information 17.825%2001: United States 10.990%; Information 19.498%2002: United States 11.911%; Information 17.388%2003: United States 11.425%; Information 14.095%2004: United States 11.511%; Information 14.862%2005: United States 11.615%; Information 12.513%2006: United States 12.495%; Information 14.368%2007: United States 11.761%; Information 13.457%2008: United States 10.307%; Information 12.521%2009: United States 9.281%; Information 13.043%2010: United States 9.495%; Information 10.616%2011: United States 9.886%; Information 13.421%2012: United States 10.018%; Information 11.604%2013: United States 9.807%; Information 11.752%2014: United States 9.906%; Information 14.337%2015: United States 10.025%; Information 10.801%2016: United States 10.194%; Information 13.126%2017: United States 9.675%; Information 11.718%2018: United States 9.414%; Information 10.825%2019: United States 9.613%; Information 11.635%2020: United States 9.637%; Information 9.985%2021: United States 10.845%; Information 11.695%2022: United States 11.651%; Information 12.585%2023: United States 10.608%; Information 10.578%
1978
12.773%
-2.195 pp to latest
2018
10.825%
Lower than 2018
Series high / 2001
19.498%
Highest published rate
Series low / 2020
9.985%
Lowest published rate

Exact annual series

Sector and national values

2023 back to 1978
Establishment entry rate for Information and the United States, with the sector-minus-national gap.
Year51United StatesGap
202310.578%10.608%-0.03 pp
202212.585%11.651%+0.934 pp
202111.695%10.845%+0.85 pp
20209.985%9.637%+0.348 pp
201911.635%9.613%+2.022 pp
201810.825%9.414%+1.411 pp
201711.718%9.675%+2.043 pp
201613.126%10.194%+2.932 pp
201510.801%10.025%+0.776 pp
201414.337%9.906%+4.431 pp
201311.752%9.807%+1.945 pp
201211.604%10.018%+1.586 pp
201113.421%9.886%+3.535 pp
201010.616%9.495%+1.121 pp
200913.043%9.281%+3.762 pp
200812.521%10.307%+2.214 pp
200713.457%11.761%+1.696 pp
200614.368%12.495%+1.873 pp
200512.513%11.615%+0.898 pp
200414.862%11.511%+3.351 pp
200314.095%11.425%+2.67 pp
200217.388%11.911%+5.477 pp
200119.498%10.99%+8.508 pp
200017.825%10.848%+6.977 pp
199916.724%11.115%+5.609 pp
199816.975%11.438%+5.537 pp
199715.01%12.2%+2.81 pp
199616.133%11.795%+4.338 pp
199514.5%12.058%+2.442 pp
199413.708%11.885%+1.823 pp
199312.635%11.509%+1.126 pp
199212.862%11.577%+1.285 pp
199117.385%12.358%+5.027 pp
199013.806%12.683%+1.123 pp
198916.83%13.368%+3.462 pp
198814.189%13.959%+0.23 pp
198716.056%14.325%+1.731 pp
198613.724%14.095%-0.371 pp
198514.773%13.81%+0.963 pp
198418.676%14.534%+4.142 pp
198313.68%13.389%+0.291 pp
198213.087%12.464%+0.623 pp
198113.677%12.797%+0.88 pp
198012.761%12.806%-0.045 pp
197912.581%13.97%-1.389 pp
197812.773%15.146%-2.373 pp

Sector structure lab

Map concentration inside Information

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 industries29Six-digit rows
Median HHI638.217 published
Median CR445.6%29 published
HHI 2,500+1Detailed rows
Published weight52.5%Revenue in chart

Bubble area = revenue

17 rows have both HHI and CR4 / 12 HHI values withheld

Top-five revenue share / 78.1%
NAICS 516210: Media streaming distribution services, social networks, and other media networks and content providers; HHI 638.2; CR4 41.2%; Revenue $300.8B; 13.58% of sectorNAICS 517112: Wireless telecommunications carriers (except satellite); HHI 3,074.2; CR4 96.6%; Revenue $283B; 12.78% of sectorNAICS 512110: Motion picture and video production; HHI 773.7; CR4 49.7%; Revenue $87.5B; 3.95% of sectorNAICS 513130: Book publishers; HHI 461.5; CR4 35.2%; Revenue $29.1B; 1.32% of sectorNAICS 513120: Periodical publishers; HHI 201.3; CR4 22.8%; Revenue $24.4B; 1.10% of sectorNAICS 513110: Newspaper publishers; HHI 522.4; CR4 41.0%; Revenue $23.2B; 1.05% of sectorNAICS 517810: All other telecommunications; HHI 1,232.4; CR4 59.5%; Revenue $21.3B; 0.96% of sectorNAICS 517122: Agents for wireless telecommunications services; HHI 239.4; CR4 25.1%; Revenue $20.4B; 0.92% of sectorNAICS 513199: All other publishers; HHI 497.7; CR4 38.1%; Revenue $14.5B; 0.66% of sectorNAICS 512131: Motion picture theaters (except drive-ins); HHI 1,017; CR4 56.0%; Revenue $13B; 0.59% of sectorNAICS 512230: Music publishers; HHI 1,380.3; CR4 66.4%; Revenue $7B; 0.32% of sectorNAICS 512191: Teleproduction and other postproduction services; HHI 184.2; CR4 21.9%; Revenue $6.4B; 0.29% of sectorNAICS 513140: Directory and mailing list publishers; HHI 841.4; CR4 45.6%; Revenue $5.1B; 0.23% of sectorNAICS 519210: Libraries and archives; HHI 254.8; CR4 27.9%; Revenue $2.7B; 0.12% of sectorNAICS 512120: Motion picture and video distribution; HHI 259.5; CR4 25.5%; Revenue $1.4B; 0.06% of sectorNAICS 512199: Other motion picture and video industries; HHI 709.1; CR4 47.2%; Revenue $235.9M; 0.01% of sectorNAICS 517111: Wired telecommunications carriers; HHI 1,285.9; CR4 65.4%; Revenue $322.7B; 14.57% 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.

12 rows / 47.5% of revenue
513210Software publishers$492.9B / 22.26%518210Computing infrastructure providers, data processing, web hosting, and related services$329.5B / 14.88%519290Web search portals and all other information services$144.3B / 6.52%516120Television broadcasting stations$32.4B / 1.47%

Active detailed industry

Wired telecommunications carriersNAICS 517111
HHI1,285.9
CR465.4%
Revenue$322.7B#3 / 14.57% of sector
Open evidence profile

Largest by revenue

Hover or focus to inspect

Top 8
01Software publishers513210$492.9B22.3%02Computing infrastructure providers, data processing, web hosting, and related services518210$329.5B14.9%03Wired telecommunications carriers517111$322.7B14.6%04Media streaming distribution services, social networks, and other media networks and content providers516210$300.8B13.6%05Wireless telecommunications carriers (except satellite)517112$283B12.8%06Web search portals and all other information services519290$144.3B6.5%07Motion picture and video production512110$87.5B4.0%08Television broadcasting stations516120$32.4B1.5%

Continue analysis

Compare top fourCurrent revenue leadersSector JSON29 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 Information to descendant curated markets, public enforcement records, research outputs, and the next evidence queue.

Observatory coverage

7 curated markets

NAICS 51 / national sector screen

Detailed industries

29

17 HHI published

Curated markets

7

5 exact NAICS crosswalks

Policy actions

6

4 linked reports

Evidence sources

11

1 Census HHI at 2,500+

Curated market crosswalk

Definitions and market metrics nested below this sector

5 of 29 detailed NAICS rows have exact links

NAICS crosswalk 517112

Wireless service

Agency defined

Commercial mobile wireless service represented in FCC competition reporting

Market HHI

3,550

2023 evidence

Census HHI

3,074.2

2022 NAICS row

Market CR4

Not published

verified

Policy docket

2

2 reports

Geographic scope
FCC economic areas summarized as a weighted national concentration measure
Measurement
FCC source-reported HHI by economic area

NAICS crosswalk 517111

Fixed broadband

Agency defined

Residential fixed internet connections with at least 100 Mbps downstream and 20 Mbps upstream

Market HHI

1,501

2024 evidence

Census HHI

1,285.9

2022 NAICS row

Market CR4

Not published

verified

Policy docket

0

1 report

Geographic scope
United States for the canonical market-profile series; separately calculated state, county, and census-tract HHIs are retained as geographic summaries
Measurement
FCC source-reported provider-share HHI for qualifying residential fixed connections

NAICS crosswalk 518210

Search engines

Public proxy

All-platform search engine usage

Market HHI

7,359

2026 evidence

Census HHI

Not published

2022 NAICS row

Market CR4

99.4%

estimated public

Policy docket

3

3 reports

Geographic scope
United States
Measurement
StatCounter search engine referral usage share

NAICS crosswalk 513210

Browsers

Public proxy

All-platform browser usage

Market HHI

3,612

2026 evidence

Census HHI

Not published

2022 NAICS row

Market CR4

93.8%

estimated public

Policy docket

3

3 reports

Geographic scope
United States
Measurement
StatCounter browser page-view usage share

NAICS crosswalk 518210

AI assistants

Public proxy

Consumer generative AI assistant usage across StatCounter-tracked assistants

Market HHI

4,804

2026 evidence

Census HHI

Not published

2022 NAICS row

Market CR4

94.8%

estimated public

Policy docket

2

2 reports

Geographic scope
United States
Measurement
StatCounter all-platform AI chatbot usage share

NAICS crosswalk 513210

Mobile operating systems

Public proxy

Mobile operating-system web usage detected in mobile page views

Market HHI

5,337

2026 evidence

Census HHI

Not published

2022 NAICS row

Market CR4

100%

estimated public

Policy docket

0

1 report

Geographic scope
United States
Measurement
StatCounter mobile operating-system page-view share

NAICS crosswalk 519290

Social referrals

Public proxy

Outbound web referrals from social-media sites

Market HHI

4,995

2026 evidence

Census HHI

Not published

2022 NAICS row

Market CR4

94.4%

estimated public

Policy docket

0

1 report

Geographic scope
United States
Measurement
StatCounter all-platform social-media referral share

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 firms24.4%
CR8Eight largest firms38.8%
CR20Twenty largest firms51.7%
CR50Fifty largest firms60.8%

Same-level benchmark

Position in the hierarchy

MeasureThis rowMedian
HHI231.623
CR424.4%6.9%
Revenue$2.2T$1.3T
Firms91.8K265.5K

HHI distance from median

+208.6

NAICS hierarchy

Move up or down the classification tree

Level 2 of 6
51 Information

Direct child categories

512Motion picture and sound recording industries513Publishing industries516Broadcasting and content providers517Telecommunications518Computing infrastructure providers, data processing, web hosting, and related services519Web search portals, libraries, archives, and other information services

Federal merger-review composition

Where NAICS 51 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

Information

6 published 3-digit rows

Exact code + normalized label
206adjusted transactionsRank 2 of 19classified HSR sectors
Published share
11.9%
of adjusted release transactions
Agency clearances
12
6.5% of release / rank 6
Second Requests
1
2.7% of release / rank 7
Intra-industry flags
2
2.5% of release / rank 9

FY2024 sector aggregate

Information

8 published 3-digit rows

Exact code + normalized label
263adjusted transactionsRank 2 of 19classified HSR sectors
Published share
13.3%
of adjusted release transactions
Agency clearances
17
9.2% of release / rank 2
Second Requests
7
11.9% of release / rank 2
Intra-industry flags
12
15.0% of release / rank 3

Adjacent-release shift

Stable HSR sector code and label

FY2023 to FY2024

Exact HSR sector code 51 is published in FY2023 and FY2024 with a stable source label. The deltas compare adjacent release aggregates without recoding their 3-digit rows.

Transactions
+57
Published share
+1.4 pp
Clearances
+5
Second Requests
+6
Intra-industry
+10
Published rows
+2

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 51Download 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
Information industry concentration (NAICS 51) | Antitrust Radar