Company lists · Data refreshed September 2026
Top 25 Post acquisition companies based in the United States
RevenueBase identified 3,197 post acquisition companies headquartered in 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 post acquisition companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 20, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest post acquisition companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 13,099 contacts → | ||||
Indirect evidence “Alvarez & Marsal is a leading global professional services firm dedicated to helping organizations tackle their most complex business issues, maximize stakeholder value, and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 8,964 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 6,978 contacts → | ||||
Indirect evidence “As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 3,912 contacts → | ||||
Indirect evidence “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.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 3,583 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 2,047 contacts → | ||||
Indirect evidence “Ankura Consulting Group, LLC (“Ankura”) is a leading global consulting and expert advisory firm that partners with organizations at critical inflection points.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,345 contacts → | ||||
Indirect evidence “Trace3 delivers business transformation.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,160 contacts → | ||||
Indirect evidence “With over 1,200 professionals across 18 international offices, Riveron delivers tailored solutions for CFOs, private equity firms, and key stakeholders.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 625 contacts → | ||||
Indirect evidence “Greenhill & Co, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 503 contacts → | ||||
Indirect evidence “Benchmark International is a global M&A firm that provides business owners with creative, value-maximizing solutions for growing and exiting their businesses.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 435 contacts → | ||||
Indirect evidence “Founded in 1980 as a tech-forward accounting practice, Lutz has grown into Nebraska’s largest locally owned business solutions firm.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 427 contacts → | ||||
Indirect evidence “Solomon Partners is a leading investment bank – one of the first independent firms in the industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 364 contacts → | ||||
Indirect evidence “Prairie is a leading financial advisory firm specializing in creating and executing ownership transition strategies for middle-market companies nationwide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 339 contacts → | ||||
Indirect evidence “Selling a business is one of the most important financial decisions you'll ever make.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 308 contacts → | ||||
Indirect evidence “Bellwether is the trusted advisory partner to global institutional real estate investors, acting as a force multiplier for their internal teams.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 283 contacts → | ||||
Indirect evidence “Partners, LLC has transformed under-performing companies into high performance operations for more than 60 years.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 276 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 267 contacts → | ||||
Indirect evidence “Generational Equity has closed more deals in the middle market than any M&A firm.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 259 contacts → | ||||
Indirect evidence “WilliamsMarston is a national leader in complex accounting, tax, technology, transaction and valuation advisory services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 258 contacts → | ||||
Indirect evidence “Opportune LLP is a leading global business advisory firm focused on adding value to clients across multiple industries with preeminence in energy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 250 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 231 contacts → | ||||
Indirect evidence “eTeam Sirius Solutions L.L.C.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 207 contacts → | ||||
Indirect evidence “Brown Gibbons Lang & Company (BGL) is a leading independent investment bank and financial advisory firm focused on the global middle market.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 207 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 205 contacts → | ||||
Indirect evidence “Stellium is a specialized management consulting firm committed to designing and delivering solutions that improve businesses worldwide.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: post acquisition companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names post acquisition companies.
- Partial evidence
- Its own public description names part of post acquisition companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name post acquisition companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 3,197 post acquisition companies based in the United States
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Post acquisition companies based in the United States at a glance
As of Sep 20, 2026Companies by employee count
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
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among post acquisition companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “post acquisition companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names post acquisition companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among post acquisition companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 38,949 across the full list. 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.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Post acquisition companies by metro
- Post acquisition companies in New York301
- Post acquisition companies in Chicago133
- Post acquisition companies in Atlanta107
- Post acquisition companies in Houston101
- Post acquisition companies in Dallas83
- Post acquisition companies in Los Angeles67
- Post acquisition companies in Miami59
- Post acquisition companies in Boston57
- Post acquisition companies in Austin50
- Post acquisition companies in Denver46
- Post acquisition companies in Washington45
- Post acquisition companies in San Francisco37
- Post acquisition companies in Charlotte36
- Post acquisition companies in San Diego33
- Post acquisition companies in Minneapolis32
- Post acquisition companies in Tampa31
- Post acquisition companies in Philadelphia29
- Post acquisition companies in Irvine28
- Post acquisition companies in Seattle28
- Post acquisition companies in New York City26
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names post acquisition companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many post acquisition companies are there based in the United States?
RevenueBase identified 3,197 post acquisition companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Alvarez & Marsal, headquartered in New York, tops this list with the largest team on record.
Which city has the most post acquisition companies?
New York leads with 301 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 38,949 verified decision-maker contacts tracked across these 3,197 companies.
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.
Ready to reach these companies? Verified emails and direct dials for all 3,197 post acquisition companies based in the United States. Start with a free account, no credit card.
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Post acquisition companies by geography
- Post acquisition companies based in Brisbane, Australia
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- Post acquisition companies based in Belo Horizonte, Brazil
- Post acquisition companies based in Porto Alegre, Brazil
- Post acquisition companies based in Rio De Janeiro, Brazil
- Post acquisition companies based in Sao Paulo, Brazil
- Post acquisition companies based in Calgary, Canada
- Post acquisition companies based in Montreal, Canada
- Post acquisition companies based in Toronto, Canada
- Post acquisition companies based in Vancouver, Canada
- Post acquisition companies based in Berlin, Germany
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 Smart Search, 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.
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