Antitrust Radar

FY2023 acquired-entity profile / published 3-digit NAICS

55155Management of companies and enterprises

Management Companies and Enterprises

This release row records 1 adjusted HSR transaction, 0 agency clearances, and 0 Second Requests. It describes acquired-entity classification inside one federal report, not an industry merger rate or a legal antitrust market.

Locate in atlas Compare releases Exact row
Position in FY2023 Table XIRank 39 of 79
Highest adjusted countLowest
Published share
0.1%
0.0 pp from FY2022
Sector position
1 / 1
100.0% of sector transactions
Management Companies and Enterprises100.0%
1 row1 sector
Adjusted transactions
1
0.1% published share
Agency clearances
0
0 FTC / 0 DOJ
Second Requests
0
0.0% of row count
Intra-industry flags
0
0.0% of row count
Release continuity
1 / 2
Single-edition code
Position in FY2023 Table XI

Rank 39 of 79

Transactions
1
0.1% share
Clearances
0
0 FTC / 0 DOJ
Second Requests
0
0.0% of row
Intra-industry
0
0.0% of row
Continuity
1 / 2
Single-edition code

Adjacent official releases

Same-code release continuity

Single-edition code

This code appears in FY2023 but not in FY2024. Absence from the adjacent table is retained as a release gap, not converted into a successor code.

FY2023551Management Companies and Enterprises1 transaction / 0.1%
FY2024Not publishedNo row under NAICS 551 in this release.No synthetic successor assigned
Adjusted transactions
FY20231Adjacent releaseNot published
No same-code comparison
Published share
FY20230.1%Adjacent releaseNot published
No same-code comparison
Agency clearances
FY20230Adjacent releaseNot published
No same-code comparison
Second Requests
FY20230Adjacent releaseNot published
No same-code comparison
Intra-industry flags
FY20230Adjacent releaseNot published
No same-code comparison

Release-to-release sector shifts aggregate each edition's exact published rows inside stable broad NAICS sectors. They are descriptive changes in the federal review pipeline, not merger rates, market-power measures, or causal estimates. Industry codes and labels that enter, exit, or change between tables remain explicit rather than being silently crosswalked.

Published review-stage record

Agency lanes stay separate

FY2023 / exact Table XI fields

Clearances and Second Requests are administrative review stages. Their counts and row-level rates do not indicate liability, remedy, competitive harm, or agency effectiveness.

Agency clearances0Rank 13 of 79
Federal Trade Commission
0
Department of Justice
0
0.0% clearances / row count
Second Requests0Rank 5 of 79
Federal Trade Commission
0
Department of Justice
0
0.0% Second Requests / row count
Intra-industry flags0Rank 7 of 79
Flagged transactions
0
Other row transactions
1
0.0% of row count

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.

Sector peer field

Management of companies and enterprises

1 published row / common count scale

Peers share this report's broad NAICS sector. Ordering uses adjusted transaction count within FY2023; it is not a ranking of market power, importance, or enforcement priority.

  1. 01551Management Companies and Enterprises10.1%
Open the complete sector in the composition atlasPreserve FY2023, sector 55, and selected NAICS 551.

Classification passport

Exact labels before analytical joins

Code identity is not a silent crosswalk

The release label, adjacent-release label, and Census 2022 label are shown independently. A matching code supports navigation; it does not prove statistical continuity when labels or source universes differ.

Selected HSR releaseFY2023 / 551

Management Companies and Enterprises

46th Hart-Scott-Rodino Annual Report (FY 2023)
Adjacent HSR releaseNo same-code row

NAICS 551 is not published in the other edition.

Single-edition code
2022 Economic CensusNo exact code

No same-code concentration record is encoded.

Context gap retained
No exact 2022 Census code context

The profile remains complete for the HSR release. The observatory does not assign a replacement NAICS code.

Evidence custody

One official row, reproducible handoffs

Source checked Aug 14, 2026
Official source

46th Hart-Scott-Rodino Annual Report (FY 2023)

Federal Trade Commission and U.S. Department of Justice

Federal Trade Commission and U.S. Department of Justice Antitrust Division, 46th Hart-Scott-Rodino Annual Report, Fiscal Year 2023, October 2024.Open source dossier

The FY2023 and FY2024 acquired-entity tables classify adjusted HSR transactions by 3-digit NAICS. They describe the federal review pipeline, not industry-wide merger rates, market definitions, competitive harm, or agency performance. Published row shares are independently rounded to one decimal place and therefore sum to 100.3% and 101.5%, respectively, while each official table total remains 100.0%.