Company lists · Data refreshed September 2026

Top 25 Add-on acquisition private equity firms worldwide

Name: Add-on acquisition private equity firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 9,360 companies tracked

RevenueBase identified 9,360 company matches for add-on acquisition private equity firms worldwide as of September 2026 and tracks 107,041 professional contacts across them, including 47,875 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers company matches for add-on acquisition private equity firms worldwide, 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 27, 2026. Country and city lists for add-on acquisition private equity firms follow the table.

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 27, 2026 How this list was built

9,360Companies

107,041Contacts tracked

47,875Verified emails

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The 25 largest add-on acquisition private equity firms worldwide

Ranked by team size

Top 25 of 9,360 company matches for add-on acquisition private equity firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	The Carlyle Group	Exact match	Washington, DC, United StatesHQ recorded Sep 27, 2026	1,001-5,000	2,515 contacts →
	Exact match “Carlyle (NASDAQ: CG) is a global investment firm with deep industry expertise that deploys private capital across three business segments: Global Private Equity, Global Credit…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2	H.I.G. Capital	Exact match	Miami, FL, United StatesHQ recorded Sep 27, 2026	501-1,000	1,301 contacts →
	Exact match “H.I.G.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3	Warburg Pincus LLC	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	501-1,000	1,290 contacts →
	Exact match “Warburg Pincus LLC is the pioneer of global growth investing.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4	Advent	Exact match	Boston, MA, United StatesHQ recorded Sep 27, 2026	501-1,000	1,025 contacts →
	Exact match “Advent is a leading global private equity investor committed to working in partnership with management teams, entrepreneurs, and founders to help transform businesses.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5	TA Associates	Exact match	Boston, MA, United StatesHQ recorded Sep 27, 2026	201-500	881 contacts →
	Exact match “TA is a leading global private equity firm focused on scaling growth in profitable companies.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6	Vista Equity Partners	Exact match	Austin, TX, United StatesHQ recorded Sep 27, 2026	501-1,000	839 contacts →
	Exact match “Vista Equity Partners (Vista) is a leading global technology investor specializing in software.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7	JV Driver Investments	Exact match	Leduc, AB, CanadaHQ recorded Sep 27, 2026	501-1,000	642 contacts →
	Exact match “JV Driver Investments Inc.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8	Permira	Exact match	London, United KingdomHQ recorded Sep 27, 2026	501-1,000	629 contacts →
	Exact match “Permira is a global investment firm that backs successful businesses with growth ambitions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9	Orix Corporation USA	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	1,001-5,000	613 contacts →
	Exact match “Established in the U.S.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10	Carlson	Exact match	Minnetonka, MN, United StatesHQ recorded Sep 27, 2026	n/a	604 contacts →
	Exact match “Carlson's roots are set in 1938, when Curtis L.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11	Platinum Equity	Exact match	Beverly Hills, CA, United StatesHQ recorded Sep 27, 2026	201-500	577 contacts →
	Exact match “Founded in 1995 by Tom Gores, Platinum Equity is a global investment firm with approximately ~$48 billion of assets under management and a portfolio of approximately 60 operating…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12	Bridgepoint Group	Exact match	West End, United KingdomHQ recorded Sep 27, 2026	201-500	553 contacts →
	Exact match “Bridgepoint Group is one of the world's leading mid-market investors, specialising in private equity, infrastructure, credit, secondaries and private wealth.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13	PSG	Exact match	Boston, MA, United StatesHQ recorded Sep 27, 2026	51-200	513 contacts →
	Exact match “PSG is a growth equity firm that partners with software and technology-enabled services companies to help them navigate transformational growth, capitalize on strategic…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14	Triton Partners	Exact match	LuxembourgHQ recorded Sep 27, 2026	201-500	494 contacts →
	Exact match “Founded in 1997 and owned by its partners, Triton is a leading European mid-market sector-specialist investor.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15	Privet Capital LLP	Exact match	London, United KingdomHQ recorded Sep 27, 2026	n/a	469 contacts →
	Exact match “We identify the hidden value in companies that are often in challenging or complex situations, but have a strong core offering.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16	Summit Partners	Exact match	Boston, MA, United StatesHQ recorded Sep 27, 2026	51-200	465 contacts →
	Exact match “Summit Partners is a global alternative investment firm with capital dedicated to growth equity, fixed income, and public equity opportunities.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17	Northland	Exact match	Newton, MA, United StatesHQ recorded Sep 27, 2026	501-1,000	464 contacts →
	Exact match “Northland is a real estate private equity firm with $8 billion of assets under management, including more than residential units and 1.3 million square feet of commercial space…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18	The Riverside Company	Exact match	New York City, NY, United StatesHQ recorded Sep 27, 2026	201-500	447 contacts →
	Exact match “The Riverside Company is a global investment firm focused on being one of the leading private capital options for business owners and employees at the smaller end of the middle…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19	Hillhouse Investment	Exact match	New York, SingaporeHQ recorded Sep 27, 2026	201-500	447 contacts →
	Exact match “Hillhouse Investment is a long-term investor focused on partnering with quality business leaders to help them grow their organizations globally.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20	APAX	Exact match	London, United KingdomHQ recorded Sep 27, 2026	201-500	438 contacts →
	Exact match “Apax Partners LLP ("Apax") is a global private equity advisory firm investing in mid-market businesses across the Technology, Services, and Internet/Consumer sectors.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21	JRK Property Holdings	Exact match	Los Angeles, CA, United StatesHQ recorded Sep 27, 2026	1,001-5,000	411 contacts →
	Exact match “JRK Property Holdings is a Los Angeles–based real estate private equity firm founded in 1991 by James Lippman, Robert Rooney, and Keith Holmes.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22	L Catterton	Exact match	Greenwich, CT, United KingdomHQ recorded Sep 27, 2026	201-500	397 contacts →
	Exact match “L Catterton is a market-leading consumer-focused investment firm, managing approximately $39 billion of equity capital across three multi-product platforms: private equity…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23	Cd&r	Exact match	New York, NY, United StatesHQ recorded Sep 27, 2026	51-200	385 contacts →
	Exact match “Founded in 1978, CD & R is an investment firm with an investment strategy predicated on building stronger, more profitable businesses.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24	Perseus Group, Constellation Software	Exact match	Markham, ON, CanadaHQ recorded Sep 27, 2026	10001+	378 contacts →
	Exact match “While other purchasers of business seek economies of scale through centralization, we have taken the opposite approach.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25	Coller Capital	Exact match	London, United KingdomHQ recorded Sep 27, 2026	201-500	376 contacts →
	Exact match “Coller Capital, founded in 1990, is one of the world's leading investors in the secondary market for private assets – and widely acknowledged as an innovator in secondaries.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “add-on acquisition private equity firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 9,360 add-on acquisition private equity firms worldwide

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Add-on acquisition private equity firms worldwide at a glance

As of Sep 27, 2026

44.7%Verified-email coverage

11.4Average contacts per company

1-10Median size (employees)

6.8%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

6,237

11-50

2,331

51-200

524

201-500

132

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for add-on acquisition private equity firms are linked below.
What qualifies: Company records worldwide whose business descriptions match “add-on acquisition private equity firms” 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. 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 47,875 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 27, 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.

Add-on acquisition private equity firms by location

51 lists · largest first

Every Add-on acquisition private equity firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “add-on acquisition private equity firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many add-on acquisition private equity firms are there worldwide?

RevenueBase identified 9,360 company matches for add-on acquisition private equity firms worldwide 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?

The Carlyle Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most add-on acquisition private equity firms?

The United States leads with 4,584 companies, followed by the United Kingdom (524) and Canada (435). Every add-on acquisition private equity firms list by country and city is linked on this page.

Which city has the most add-on acquisition private equity firms?

New York leads with 636 company records, followed by London (363) and Chicago (247).

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 47,875 professional contacts with verified work emails tracked across these 9,360 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 27, 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.