Company lists · Data refreshed September 2026

Top 25 Post acquisition companies based in the United States

RevenueBase identified 3,197 company matches for post acquisition companies associated with the United States as of September 2026 and tracks 68,569 professional contacts across them, including 38,949 with verified work emails. New York is the largest hub.

This list covers company matches for post acquisition companies associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
3,197Companies
68,569Contacts tracked
38,949Verified emails
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The 25 largest post acquisition companies based in the United States

Ranked by team size
Top 25 of 3,197 company matches for post acquisition companies based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Sep 20, 202610001+13,099 contacts →

Exact match

“Alvarez & Marsal is a leading global professional services firm dedicated to helping organizations tackle their most complex business issues, maximize stakeholder value, and…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchWashington, DC, United StatesHQ recorded Sep 20, 20265,001-10,0008,964 contacts →

Exact match

“FTI Consulting is the leading global expert firm for organizations facing crisis and transformation, with more than 8,100 employees in 32 countries and territories.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchChicago, IL, United StatesHQ recorded Sep 20, 20265,001-10,0006,978 contacts →

Exact match

“As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Sep 20, 20261,001-5,0003,912 contacts →

Exact match

“Founded in 1848, Lazard is the preeminent financial advisory and asset management firm, with operations in North and South America, Europe, the Middle East, Asia, and Australia.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchNew York, NY, United StatesHQ recorded Sep 20, 20261,001-5,0003,583 contacts →

Exact match

“For more than forty years, AlixPartners has helped businesses around the world respond quickly and decisively to their most critical challenges – circumstances as diverse as…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Sep 20, 20261,001-5,0002,047 contacts →

Exact match

“Ankura Consulting Group, LLC (“Ankura”) is a leading global consulting and expert advisory firm that partners with organizations at critical inflection points.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchIrvine, CA, United StatesHQ recorded Sep 20, 20261,001-5,0001,345 contacts →

Exact match

“Trace3 delivers business transformation.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchDallas, TX, United StatesHQ recorded Sep 20, 20261,001-5,0001,160 contacts →

Exact match

“With over 1,200 professionals across 18 international offices, Riveron delivers tailored solutions for CFOs, private equity firms, and key stakeholders.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchNew York, United StatesHQ recorded Sep 20, 2026201-500625 contacts →

Exact match

“Greenhill & Co, Inc.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchTampa, FL, United StatesHQ recorded Sep 20, 2026201-500503 contacts →

Exact match

“Benchmark International is a global M&A firm that provides business owners with creative, value-maximizing solutions for growing and exiting their businesses.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchOmaha, NE, United StatesHQ recorded Sep 20, 2026201-500435 contacts →

Exact match

“Founded in 1980 as a tech-forward accounting practice, Lutz has grown into Nebraska’s largest locally owned business solutions firm.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Sep 20, 2026201-500427 contacts →

Exact match

“Solomon Partners is a leading investment bank – one of the first independent firms in the industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchOakbrook Terrace, IL, United StatesHQ recorded Sep 20, 202651-200364 contacts →

Exact match

“Prairie is a leading financial advisory firm specializing in creating and executing ownership transition strategies for middle-market companies nationwide.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchDallas, TX, United StatesHQ recorded Sep 20, 202651-200339 contacts →

Exact match

“Selling a business is one of the most important financial decisions you'll ever make.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchLos Angeles, CA, United StatesHQ recorded Sep 20, 2026201-500308 contacts →

Exact match

“Bellwether is the trusted advisory partner to global institutional real estate investors, acting as a force multiplier for their internal teams.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchAtlanta, GA, United StatesHQ recorded Sep 20, 2026n/a283 contacts →

Exact match

“Partners, LLC has transformed under-performing companies into high performance operations for more than 60 years.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchBoston, MA, United StatesHQ recorded Sep 20, 202651-200276 contacts →

Exact match

“For over 20 years, Capstone Partners has been a trusted advisor to leading middle market companies, offering a fully integrated range of investment banking and financial advisory…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchRichardson, TX, United StatesHQ recorded Sep 20, 2026201-500267 contacts →

Exact match

“Generational Equity has closed more deals in the middle market than any M&A firm.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchBoston, MA, United StatesHQ recorded Sep 20, 2026201-500259 contacts →

Exact match

“WilliamsMarston is a national leader in complex accounting, tax, technology, transaction and valuation advisory services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchHouston, TX, United StatesHQ recorded Sep 20, 2026201-500258 contacts →

Exact match

“Opportune LLP is a leading global business advisory firm focused on adding value to clients across multiple industries with preeminence in energy.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchAustin, TX, United StatesHQ recorded Sep 20, 2026201-500250 contacts →

Exact match

“Bridgepoint Consulting, an Addison Group company, is a leading management consulting firm that offers a full suite of services and solutions to help companies navigate the…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchHouston, TX, United StatesHQ recorded Sep 20, 2026201-500231 contacts →

Exact match

“eTeam Sirius Solutions L.L.C.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchCleveland, OH, United StatesHQ recorded Sep 20, 202651-200207 contacts →

Exact match

“Brown Gibbons Lang & Company (BGL) is a leading independent investment bank and financial advisory firm focused on the global middle market.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchChicago, IL, United StatesHQ recorded Sep 20, 202651-200207 contacts →

Exact match

“Livingstone is an international mid-market M&A and debt advisory firm with offices in Amsterdam, Beijing, Chicago, Düsseldorf, Frankfurt, Hamburg, London, Los Angeles, Madrid…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchHouston, TX, United StatesHQ recorded Sep 20, 202651-200205 contacts →

Exact match

“Stellium is a specialized management consulting firm committed to designing and delivering solutions that improve businesses worldwide.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 3,197 post acquisition companies based in the United States

See the full list, filter by size, metro and specialty, and access 38,949 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Post acquisition companies based in the United States at a glance

As of Sep 20, 2026
56.8%Verified-email coverage
21.4Average contacts per company
1-10Median size (employees)
10.2%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
2,298
11-50
707
51-200
136
201-500
37
501-1,000
6
1,001-5,000
8
5,001-10,000
2
10001+
3

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,197 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “post acquisition companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 38,949 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “post acquisition companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many post acquisition companies are there based in the United States?

RevenueBase identified 3,197 company matches for post acquisition companies associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Alvarez & Marsal tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most post acquisition companies?

New York leads with 327 company records, followed by Chicago (133) and Atlanta (107).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 38,949 professional contacts with verified work emails tracked across these 3,197 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.