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2022 Economic Census / NAICS 56

Administrative and support and waste management and remediation services

The four largest firms in Administrative and support and waste management and remediation services accounted for 7.5% of the industry's 2022 sales, value of shipments, or revenue, and its concentration (HHI 23) ranks 9 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.

SectorAdministrative and support and waste management and remediation servicesMiddle half

Revenue-based HHI

23

56
03,500
Same-level median 2353th percentile

National rank

#9

of 17 published

Sector rank

N/A

of 30 published

Largest 4 firms

7.5%

Share of industry revenue

Revenue

$1.3T

Sales, shipments, or revenue

Employer firms

381.5K

381,490

Employment

13.7M

13,705,316

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 profileAdministrative and support and waste management and remediation servicesSector · HHI 23 · CR4 7.5%

  • 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 Administrative and support and waste management and remediation services

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

NAICS 56

Median HHI-point change across strict six-digit matches

+10.7 pts#5 highest change of 17 sectors

Economy median

+1.6 ptsAcross sector medians
2017 paired median
140.4
2022 paired median
168.8
Published pairs
26 of 43
Direction mix
16 up / 10 down

Interpretation

The typical published detailed-industry HHI moved +10.7 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 56 broad-sector contract.
Direct broad-sector join
Business Applications
37,537
Jul 2026 monthly count
Application annual change
+19.2%
Same month one year earlier
U.S. application share
6.5%
Share of national applications
High-propensity mix
12.6%
4,712 applications
Projected formations
1,995
Modeled four-quarter source projection
Establishment entry rate
12.9%
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 Administrative and support and waste management and remediation servicesBusiness 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
423,309 applications / latest 12 months59,190 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 56 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

Professional services signals across linked sectors

2 Census sectors share these BLS source-group readings; none is allocated a separate value.
Shared BLS group
Job openings
5.5%
Jun 2026 JOLTS rate
Hires
4.8%
Jun 2026 JOLTS rate
Quits
2.2%
Jun 2026 JOLTS rate
Layoffs + discharges
2.2%
Jun 2026 JOLTS rate
All employees
22.5M
22,518 thousand payroll jobs
Weekly hours
36.7
+0.3 hrs from year earlier
Hourly earnings
$45.68
+2.9% 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 Professional and business services 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
-0.1 pp openings / year earlier+0.3 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 Professional and business services source group, each independently indexed to 100 in the first displayed month. Native levels remain in the readouts.13012111310495Aug 2021Nov 2022Feb 2024May 2025Jul 2026
+0.5% payroll jobs / year earlier+2.9% nominal earnings / year earlier

Declared classification bridge

One profile, two source-owned industry groups

Selected Census parent
NAICS 56
Administrative and support and waste management and remediation services
JOLTS group
540099
Professional and business services
CES supersector
60
Professional and business services
Mapped Census sectors
2
54, 56

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 Administrative and support and waste management and remediation services sector (NAICS 56) is one of 2 Census-sector contexts attached to the broader Professional and business services JOLTS and Professional and business services 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

Administrative services in the U.S. value-added map

Exact broad-sector bridge from Census NAICS 56 to BEA line 71.
Exact sector context
GDP share
3.1%
2025 current-dollar composition
Real growth
+2.3%
2026-Q1 annualized BEA convention
Growth contribution
+0.07 pp
2026-Q1 contribution to real GDP growth
Real quantity index
124.3
2026-Q1 / 2017=100
Current value added
$988.13B
2026-Q1 seasonally adjusted annual rate

Annual composition trajectory

Share of current-dollar GDP

1997-2025
Administrative services 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
2.5%1997+0.6 pplong-run shift3.1%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 71 and Census NAICS 56 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 Administrative and support and waste management and remediation services sector

Parent NAICS 56 supplies a classification directory only; no requirement coefficient is assigned to this narrower profile.
Sector directory only
BEA lines in scope
2
inside NAICS 56
Annual matrices
28
1997-2024
Raw matrix cells
3,976
retained without aggregation
Net requirement
Not constructed
not additive across buyer columns
Own requirement
Not constructed
no sector diagonal constructed

Published production directory

2 BEA industries map to this parent sector

561Administrative and support services562Waste management and remediation 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 2 BEA summary industries classified inside parent sector Administrative and support and waste management and remediation services (NAICS 56). No coefficient is averaged, summed across buyer columns, or allocated to Administrative and support and waste management and remediation services (NAICS 56). 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 Administrative and support and waste management and remediation services with the national series while preserving the BDS universe.
Administrative and support and waste management and remediation services
12.905%
2023 sector rate
United States
10.608%
2023 national rate
Sector gap
+2.297 pp
Above U.S. rate
Joined-sector rank
#4
of 17 by magnitude

Establishment entry rate

Administrative and support and waste management and remediation services and the United States

Entering establishments as a share of the Census BDS establishment denominator.
Administrative and support and waste management and remediation servicesUnited States
2023Administrative and support and waste management and remediation services12.905%United States10.608%Gap +2.297 pp
1978: United States 15.146%; Administrative and support and waste management and remediation services 22.585%1979: United States 13.970%; Administrative and support and waste management and remediation services 21.915%1980: United States 12.806%; Administrative and support and waste management and remediation services 20.339%1981: United States 12.797%; Administrative and support and waste management and remediation services 19.936%1982: United States 12.464%; Administrative and support and waste management and remediation services 19.021%1983: United States 13.389%; Administrative and support and waste management and remediation services 19.507%1984: United States 14.534%; Administrative and support and waste management and remediation services 19.935%1985: United States 13.810%; Administrative and support and waste management and remediation services 20.253%1986: United States 14.095%; Administrative and support and waste management and remediation services 20.569%1987: United States 14.325%; Administrative and support and waste management and remediation services 20.817%1988: United States 13.959%; Administrative and support and waste management and remediation services 20.231%1989: United States 13.368%; Administrative and support and waste management and remediation services 19.555%1990: United States 12.683%; Administrative and support and waste management and remediation services 18.636%1991: United States 12.358%; Administrative and support and waste management and remediation services 17.323%1992: United States 11.577%; Administrative and support and waste management and remediation services 16.555%1993: United States 11.509%; Administrative and support and waste management and remediation services 16.864%1994: United States 11.885%; Administrative and support and waste management and remediation services 16.979%1995: United States 12.058%; Administrative and support and waste management and remediation services 17.501%1996: United States 11.795%; Administrative and support and waste management and remediation services 17.000%1997: United States 12.200%; Administrative and support and waste management and remediation services 17.336%1998: United States 11.438%; Administrative and support and waste management and remediation services 15.857%1999: United States 11.115%; Administrative and support and waste management and remediation services 14.245%2000: United States 10.848%; Administrative and support and waste management and remediation services 13.722%2001: United States 10.990%; Administrative and support and waste management and remediation services 13.938%2002: United States 11.911%; Administrative and support and waste management and remediation services 14.440%2003: United States 11.425%; Administrative and support and waste management and remediation services 14.294%2004: United States 11.511%; Administrative and support and waste management and remediation services 14.824%2005: United States 11.615%; Administrative and support and waste management and remediation services 14.556%2006: United States 12.495%; Administrative and support and waste management and remediation services 16.372%2007: United States 11.761%; Administrative and support and waste management and remediation services 14.562%2008: United States 10.307%; Administrative and support and waste management and remediation services 13.775%2009: United States 9.281%; Administrative and support and waste management and remediation services 12.156%2010: United States 9.495%; Administrative and support and waste management and remediation services 12.189%2011: United States 9.886%; Administrative and support and waste management and remediation services 12.721%2012: United States 10.018%; Administrative and support and waste management and remediation services 12.551%2013: United States 9.807%; Administrative and support and waste management and remediation services 13.072%2014: United States 9.906%; Administrative and support and waste management and remediation services 12.570%2015: United States 10.025%; Administrative and support and waste management and remediation services 12.636%2016: United States 10.194%; Administrative and support and waste management and remediation services 12.969%2017: United States 9.675%; Administrative and support and waste management and remediation services 11.273%2018: United States 9.414%; Administrative and support and waste management and remediation services 11.033%2019: United States 9.613%; Administrative and support and waste management and remediation services 12.127%2020: United States 9.637%; Administrative and support and waste management and remediation services 12.520%2021: United States 10.845%; Administrative and support and waste management and remediation services 14.117%2022: United States 11.651%; Administrative and support and waste management and remediation services 13.598%2023: United States 10.608%; Administrative and support and waste management and remediation services 12.905%
1978
22.585%
-9.68 pp to latest
2018
11.033%
Higher than 2018
Series high / 1978
22.585%
Highest published rate
Series low / 2018
11.033%
Lowest published rate

Exact annual series

Sector and national values

2023 back to 1978
Establishment entry rate for Administrative and support and waste management and remediation services and the United States, with the sector-minus-national gap.
Year56United StatesGap
202312.905%10.608%+2.297 pp
202213.598%11.651%+1.947 pp
202114.117%10.845%+3.272 pp
202012.52%9.637%+2.883 pp
201912.127%9.613%+2.514 pp
201811.033%9.414%+1.619 pp
201711.273%9.675%+1.598 pp
201612.969%10.194%+2.775 pp
201512.636%10.025%+2.611 pp
201412.57%9.906%+2.664 pp
201313.072%9.807%+3.265 pp
201212.551%10.018%+2.533 pp
201112.721%9.886%+2.835 pp
201012.189%9.495%+2.694 pp
200912.156%9.281%+2.875 pp
200813.775%10.307%+3.468 pp
200714.562%11.761%+2.801 pp
200616.372%12.495%+3.877 pp
200514.556%11.615%+2.941 pp
200414.824%11.511%+3.313 pp
200314.294%11.425%+2.869 pp
200214.44%11.911%+2.529 pp
200113.938%10.99%+2.948 pp
200013.722%10.848%+2.874 pp
199914.245%11.115%+3.13 pp
199815.857%11.438%+4.419 pp
199717.336%12.2%+5.136 pp
199617.0%11.795%+5.205 pp
199517.501%12.058%+5.443 pp
199416.979%11.885%+5.094 pp
199316.864%11.509%+5.355 pp
199216.555%11.577%+4.978 pp
199117.323%12.358%+4.965 pp
199018.636%12.683%+5.953 pp
198919.555%13.368%+6.187 pp
198820.231%13.959%+6.272 pp
198720.817%14.325%+6.492 pp
198620.569%14.095%+6.474 pp
198520.253%13.81%+6.443 pp
198419.935%14.534%+5.401 pp
198319.507%13.389%+6.118 pp
198219.021%12.464%+6.557 pp
198119.936%12.797%+7.139 pp
198020.339%12.806%+7.533 pp
197921.915%13.97%+7.945 pp
197822.585%15.146%+7.439 pp

Sector structure lab

Map concentration inside Administrative and support and waste management and remediation services

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 industries44Six-digit rows
Median HHI18230 published
Median CR423.5%44 published
HHI 2,500+1Detailed rows
Published weight81.9%Revenue in chart

Bubble area = revenue

30 rows have both HHI and CR4 / 14 HHI values withheld

Top-five revenue share / 59.6%
NAICS 561330: Professional employer organizations; HHI 470.3; CR4 35.4%; Revenue $197.9B; 14.68% of sectorNAICS 561730: Landscaping services; HHI 18.1; CR4 7.4%; Revenue $115.4B; 8.56% of sectorNAICS 561110: Office administrative services; HHI 7.4; CR4 3.4%; Revenue $90.8B; 6.74% of sectorNAICS 562111: Solid waste collection; HHI 679.1; CR4 45.8%; Revenue $65.8B; 4.88% of sectorNAICS 561210: Facilities support services; HHI 211.6; CR4 22.3%; Revenue $41.2B; 3.06% of sectorNAICS 561990: All other support services; HHI 75.2; CR4 14.0%; Revenue $29.7B; 2.20% of sectorNAICS 561422: Telemarketing bureaus and other contact centers; HHI 165.2; CR4 21.8%; Revenue $25.6B; 1.90% of sectorNAICS 561599: All other travel arrangement and reservation services; HHI 442.5; CR4 32.8%; Revenue $25B; 1.85% of sectorNAICS 562910: Remediation services; HHI 43.2; CR4 9.0%; Revenue $22.7B; 1.69% of sectorNAICS 561311: Employment placement agencies; HHI 55.6; CR4 10.4%; Revenue $21.4B; 1.59% of sectorNAICS 561710: Exterminating and pest control services; HHI 327.2; CR4 31.1%; Revenue $19.9B; 1.48% of sectorNAICS 561920: Convention and trade show organizers; HHI 78.8; CR4 13.3%; Revenue $17.4B; 1.29% of sectorNAICS 561450: Credit bureaus; HHI 1,559.8; CR4 75.1%; Revenue $14.7B; 1.09% of sectorNAICS 561312: Executive search services; HHI 163.8; CR4 23.6%; Revenue $12.6B; 0.93% of sectorNAICS 561910: Packaging and labeling services; HHI 147.6; CR4 20.1%; Revenue $12.4B; 0.92% of sectorNAICS 561499: All other business support services; HHI 187.2; CR4 22.7%; Revenue $9.7B; 0.72% of sectorNAICS 561520: Tour operators; HHI 193.1; CR4 23.3%; Revenue $9B; 0.67% of sectorNAICS 562211: Hazardous waste treatment and disposal; HHI 925.1; CR4 51.3%; Revenue $9B; 0.67% of sectorNAICS 562991: Septic tank and related services; HHI 92.1; CR4 15.5%; Revenue $6.3B; 0.47% of sectorNAICS 561611: Investigation and personal background check services; HHI 199.8; CR4 23.4%; Revenue $6.2B; 0.46% of sectorNAICS 562119: Other waste collection; HHI 340.3; CR4 34.8%; Revenue $3.6B; 0.27% of sectorNAICS 561613: Armored car services; HHI 2,721; CR4 89.9%; Revenue $3.6B; 0.27% of sectorNAICS 562998: All other miscellaneous waste management services; HHI 176.8; CR4 20.9%; Revenue $3.6B; 0.27% of sectorNAICS 562112: Hazardous waste collection; HHI 401.8; CR4 35.3%; Revenue $3.2B; 0.24% of sectorNAICS 561591: Convention and visitors bureaus; HHI 118.1; CR4 15.7%; Revenue $2.7B; 0.20% of sectorNAICS 561622: Locksmiths; HHI 17.5; CR4 6.5%; Revenue $2.6B; 0.19% of sectorNAICS 561421: Telephone answering services; HHI 172.4; CR4 19.6%; Revenue $2.6B; 0.19% of sectorNAICS 562219: Other nonhazardous waste treatment and disposal; HHI 303.9; CR4 28.4%; Revenue $2B; 0.15% of sectorNAICS 561491: Repossession services; HHI 207.7; CR4 24.3%; Revenue $1.1B; 0.08% of sectorNAICS 561320: Temporary help services; HHI 137.7; CR4 18.1%; Revenue $326B; 24.19% 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.

14 rows / 18.1% of revenue
561720Janitorial services$72.6B / 5.39%561612Security guards and patrol services$37B / 2.75%561510Travel agencies$32.3B / 2.40%561621Security systems services (except locksmiths)$31.3B / 2.32%

Active detailed industry

Temporary help servicesNAICS 561320
HHI137.7
CR418.1%
Revenue$326B#1 / 24.19% of sector
Open evidence profile

Largest by revenue

Hover or focus to inspect

Top 8
01Temporary help services561320$326B24.2%02Professional employer organizations561330$197.9B14.7%03Landscaping services561730$115.4B8.6%04Office administrative services561110$90.8B6.7%05Janitorial services561720$72.6B5.4%06Solid waste collection562111$65.8B4.9%07Facilities support services561210$41.2B3.1%08Security guards and patrol services561612$37B2.8%

Continue analysis

Compare top fourCurrent revenue leadersSector JSON44 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 Administrative and support and waste management and remediation services to descendant curated markets, public enforcement records, research outputs, and the next evidence queue.

Observatory coverage

Research coverage gap

NAICS 56 / national sector screen

Detailed industries

44

30 HHI published

Curated markets

0

0 exact NAICS crosswalks

Policy actions

0

0 linked reports

Evidence sources

0

1 Census HHI at 2,500+

Explicit research gap

No descendant market dossier is curated yet

The sector remains fully available as a Census structure screen. Product boundaries, geographic scope, and market-specific public sources still need to be assembled before a legal-market bridge can be published.

Market-definition protocol

Start with published Census signals

561613Armored car services2,721561450Credit bureaus1,559.8562211Hazardous waste treatment and disposal925.1

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 firms7.5%
CR8Eight largest firms10.8%
CR20Twenty largest firms17.2%
CR50Fifty largest firms25.2%

Same-level benchmark

Position in the hierarchy

MeasureThis rowMedian
HHI2323
CR47.5%6.9%
Revenue$1.3T$1.3T
Firms381.5K265.5K

HHI distance from median

0

NAICS hierarchy

Move up or down the classification tree

Level 2 of 6
56 Administrative and support and waste management and remediation services

Direct child categories

561Administrative and support services562Waste management and remediation services

Federal merger-review composition

Where NAICS 56 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

Administrative, support, waste, and remediation services

2 published 3-digit rows

Exact code / source wording
76adjusted transactionsRank 7 of 19classified HSR sectors
Published share
4.4%
of adjusted release transactions
Agency clearances
6
3.2% of release / rank 7
Second Requests
0
0.0% of release / rank 9
Intra-industry flags
2
2.5% of release / rank 9

FY2024 sector aggregate

Administrative, support, waste, and remediation services

2 published 3-digit rows

Exact code / source wording
63adjusted transactionsRank 9 of 19classified HSR sectors
Published share
3.2%
of adjusted release transactions
Agency clearances
6
3.3% of release / rank 10
Second Requests
2
3.4% of release / rank 9
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 56 is published in FY2023 and FY2024 with a stable source label. The deltas compare adjacent release aggregates without recoding their 3-digit rows.

Transactions
-13
Published share
-1.2 pp
Clearances
0
Second Requests
+2
Intra-industry
-2
Published rows
0

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 56Download 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
Administrative and support and waste management and remediation services industry concentration (NAICS 56) | Antitrust Radar