Company lists · Data refreshed September 2026

Top 25 Business services private equity investors worldwide

Name: Business services private equity investors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 27, 2026 11,093 companies tracked

RevenueBase identified 11,093 business services private equity investors worldwide as of September 2026 and tracks 116,324 professional contacts across them, including 50,919 with verified work emails. The United States is the largest market and New York the largest hub.

This list covers business services private equity investors worldwide, 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 27, 2026. Country and city lists for business services private equity investors follow the table.

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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 27, 2026 86% judged on-target in blind review

11,093Companies

116,324Contacts tracked

50,919Verified emails

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The 25 largest business services private equity investors worldwide

Ranked by team size

Top 25 of 11,093 business services private equity investors worldwide, ranked by team size, largest first. Data refreshed Sep 27, 2026. RevenueBase Smart Search rates how each company's information relates to business services private equity investors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Vistra	Indirect evidence	SingaporeHQ checked Sep 27, 2026	5,001-10,000	5,940 contacts →
	Indirect evidence “Our purpose is progress.” Source: RevenueBase Database · checked Sep 27, 2026
2	The Carlyle Group	Strong evidence	Washington, DC, United StatesHQ checked Sep 27, 2026	1,001-5,000	2,515 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
3	Lincoln International	Strong evidence	Chicago, IL, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,489 contacts →
	Strong evidence “Lincoln International, Inc.(NYSE: LCLN) is a trusted investment banking advisor to business owners and senior executives of leading private equity firms and their portfolio…” Source: RevenueBase Database · checked Sep 27, 2026
4	H.I.G. Capital	Indirect evidence	Miami, FL, United StatesHQ checked Sep 27, 2026	501-1,000	1,301 contacts →
	Indirect evidence “H.I.G.” Source: RevenueBase Database · checked Sep 27, 2026
5	Warburg Pincus LLC	Indirect evidence	New York, NY, United StatesHQ checked Sep 27, 2026	501-1,000	1,290 contacts →
	Indirect evidence “Warburg Pincus LLC is the pioneer of global growth investing.” Source: RevenueBase Database · checked Sep 27, 2026
6	Riveron	Strong evidence	Dallas, TX, United StatesHQ checked Sep 27, 2026	1,001-5,000	1,160 contacts →
	Strong 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 27, 2026
7	Advent	Strong evidence	Boston, MA, United StatesHQ checked Sep 27, 2026	501-1,000	1,025 contacts →
	Strong evidence “Advent is a leading global private equity investor committed to working in partnership with management teams, entrepreneurs, and founders to help transform businesses.” Source: RevenueBase Database · checked Sep 27, 2026
8	TA Associates	Strong evidence	Boston, MA, United StatesHQ checked Sep 27, 2026	201-500	881 contacts →
	Strong evidence “TA is a leading global private equity firm focused on scaling growth in profitable companies.” Source: RevenueBase Database · checked Sep 27, 2026
9	Permira	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	501-1,000	629 contacts →
	Indirect evidence “Permira is a global investment firm that backs successful businesses with growth ambitions.” Source: RevenueBase Database · checked Sep 27, 2026
10	PSG	Partial evidence	Boston, MA, United StatesHQ checked Sep 27, 2026	51-200	513 contacts →
	Partial evidence “PSG is a growth equity firm that partners with software and technology-enabled services companies to help them navigate transformational growth, capitalize on strategic…” Source: RevenueBase Database · checked Sep 27, 2026
11	Triton Partners	Partial evidence	LuxembourgHQ checked Sep 27, 2026	201-500	494 contacts →
	Partial evidence “Founded in 1997 and owned by its partners, Triton is a leading European mid-market sector-specialist investor.” Source: RevenueBase Database · checked Sep 27, 2026
12	Summit Partners	Partial evidence	Boston, MA, United StatesHQ checked Sep 27, 2026	51-200	465 contacts →
	Partial evidence “Summit Partners is a global alternative investment firm with capital dedicated to growth equity, fixed income, and public equity opportunities.” Source: RevenueBase Database · checked Sep 27, 2026
13	The Riverside Company	Partial evidence	New York City, NY, United StatesHQ checked Sep 27, 2026	201-500	447 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026
14	Hillhouse Investment	Partial evidence	New York, SingaporeHQ checked Sep 27, 2026	201-500	447 contacts →
	Partial evidence “Hillhouse Investment is a long-term investor focused on partnering with quality business leaders to help them grow their organizations globally.” Source: RevenueBase Database · checked Sep 27, 2026
15	APAX	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	438 contacts →
	Strong evidence “Apax Partners LLP ("Apax") is a global private equity advisory firm investing in mid-market businesses across the Technology, Services, and Internet/Consumer sectors.” Source: RevenueBase Database · checked Sep 27, 2026
16	Siri Infosolutions, INC	Strong evidence	Edison, NJ, United StatesHQ checked Sep 27, 2026	501-1,000	423 contacts →
	Strong evidence “Siri InfoSolutions is a private equity consortium firm that specializes in providing IT staffing services to Fortune 500 clients throughout the United States.” Source: RevenueBase Database · checked Sep 27, 2026
17	JRK Property Holdings	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 27, 2026	1,001-5,000	411 contacts →
	Strong evidence “JRK Property Holdings is a Los Angeles–based real estate private equity firm founded in 1991 by James Lippman, Robert Rooney, and Keith Holmes.” Source: RevenueBase Database · checked Sep 27, 2026
18	Clearwater	Indirect evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	384 contacts →
	Indirect evidence “Clearwater is an independent corporate finance house focused on unlocking the latent potential in every business.” Source: RevenueBase Database · checked Sep 27, 2026
19	Coller Capital	Strong evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	376 contacts →
	Strong evidence “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.” Source: RevenueBase Database · checked Sep 27, 2026
20	IDG Capital	Strong evidence	Hong KongHQ checked Sep 27, 2026	201-500	369 contacts →
	Strong evidence “Founded in 1993, IDG Capital is a leading private equity investment firm headquartered in Hong Kong, recognized for its global vision and long-standing market presence.” Source: RevenueBase Database · checked Sep 27, 2026
21	BLOOM	Strong evidence	SingaporeHQ checked Sep 27, 2026	n/a	360 contacts →
	Strong evidence “bloom.CAPITAL is an operationally-focused private equity firm that invests in small to mid-market companies in the industrial sector.” Source: RevenueBase Database · checked Sep 27, 2026
22	Novacap	Indirect evidence	Brossard, QC, CanadaHQ checked Sep 27, 2026	51-200	355 contacts →
	Indirect evidence “Novacap est un investisseur nord-américain d’envergure et l’une des sociétés d’investissement privé les plus expérimentées au Canada.” Source: RevenueBase Database · checked Sep 27, 2026
23	W Capital Partners	Strong evidence	New York, NY, United StatesHQ checked Sep 27, 2026	n/a	337 contacts →
	Strong evidence “W Capital Partners is a private equity firm that provides secondary liquidity to shareholders in private businesses and growth capital for those companies.” Source: RevenueBase Database · checked Sep 27, 2026
24	PAI Partners	Strong evidence	Paris, FranceHQ checked Sep 27, 2026	201-500	329 contacts →
	Strong evidence “PAI Partners is a leading private equity firm.” Source: RevenueBase Database · checked Sep 27, 2026
25	Aurelius	Partial evidence	London, United KingdomHQ checked Sep 27, 2026	201-500	328 contacts →
	Partial evidence “AURELIUS is a global alternative investor, distinguished and widely recognised for its operational approach.” Source: RevenueBase Database · checked Sep 27, 2026

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: business services private equity investors. 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 business services private equity investors.
Partial evidence: Its own public description names part of business services private equity investors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business services private equity investors. 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 11,093 business services private equity investors worldwide

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Business services private equity investors worldwide at a glance

As of Sep 27, 2026

43.8%Verified-email coverage

10.5Average contacts per company

1-10Median size (employees)

5.3%Largest-city concentration · New York

Sep 27, 2026Page data refreshed

Companies by employee count

1-10

7,547

11-50

2,792

51-200

514

201-500

120

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

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among business services private equity investors, 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.
Coverage: Every country. Country and city lists for business services private equity investors are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “business services private equity investors”. 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 business services private equity investors), 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 business services private equity investors, and records with no verified work email.
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, 50,919 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 27, 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.

Business services private equity investors by location

58 lists · largest first

Every Business services private equity investors 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 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 business services private equity investors, 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 business services private equity investors are there worldwide?

RevenueBase identified 11,093 business services private equity investors worldwide 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?

Vistra, headquartered in Singapore, tops this list with the largest team on record.

Which country has the most business services private equity investors?

The United States leads with 4,311 companies, followed by the United Kingdom (851) and Canada (403). Every business services private equity investors list by country and city is linked on this page.

Which city has the most business services private equity investors?

New York leads with 592 headquartered companies, followed by London (536) and Chicago (215).

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 50,919 verified decision-maker contacts tracked across these 11,093 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 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 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.