Company lists · Data refreshed September 2026

Top 25 Secondary private equity firms based in the United States

RevenueBase identified 1,982 secondary private equity firms headquartered in the United States as of September 2026 and tracks 29,786 professional contacts across them, including 16,311 with verified work emails. New York is the largest hub.

This list covers secondary private equity firms 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 29, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
1,982Companies
29,786Contacts tracked
16,311Verified emails
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The 25 largest secondary private equity firms based in the United States

Ranked by team size
Top 25 of 1,982 secondary private equity firms based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to secondary private equity firms: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceBoston, MA, United StatesHQ checked Sep 29, 20261,001-5,0001,353 contacts →

Partial evidence

“HarbourVest is an independent, global private markets firm with over 43 years of experience and $161 billion assets under management as of December 31, 2025.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceMiami, FL, United StatesHQ checked Sep 29, 2026501-1,0001,301 contacts →

Indirect evidence

“H.I.G.”

Source: RevenueBase Database · checked Sep 29, 2026
3Strong evidenceBoston, MA, United StatesHQ checked Sep 29, 2026201-500881 contacts →

Strong evidence

“TA is a leading global private equity firm focused on scaling growth in profitable companies.”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 20261,001-5,000613 contacts →

Indirect evidence

“Established in the U.S.”

Source: RevenueBase Database · checked Sep 29, 2026
5Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 2026201-500447 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 29, 2026
6Strong evidenceNew York, NY, United StatesHQ checked Sep 29, 2026n/a337 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 29, 2026
7Indirect evidenceWest Palm Beach, FL, United StatesHQ checked Sep 29, 2026201-500297 contacts →

Indirect evidence

“AMG is a leading partner to independent investment management firms globally.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 2026201-500260 contacts →

Indirect evidence

“Churchill, an investment-specialist affiliate of Nuveen (the asset manager of TIAA), provides customized financing solutions to U.S.”

Source: RevenueBase Database · checked Sep 29, 2026
9Strong evidenceBoston, MA, United StatesHQ checked Sep 29, 2026201-500255 contacts →

Strong evidence

“Berkshire Partners is a 100% employee-owned, multi-sector specialist investor in private and public equity, with a focus on North American-based, middle-market companies.”

Source: RevenueBase Database · checked Sep 29, 2026
10Strong evidenceIrvine, CA, United StatesHQ checked Sep 29, 2026201-500252 contacts →

Strong evidence

“Pathway is a leading private market solutions provider with over $95 billion in assets under management from private equity, private credit, and infrastructure mandates.”

Source: RevenueBase Database · checked Sep 29, 2026
11Strong evidenceAtlanta, GA, United StatesHQ checked Sep 29, 202651-200252 contacts →

Strong evidence

“Roark is an Atlanta‐based private equity firm with $41 billion in assets under management.”

Source: RevenueBase Database · checked Sep 29, 2026
12Strong evidenceChicago, IL, United StatesHQ checked Sep 29, 202651-200237 contacts →

Strong evidence

“Founded in 1980, GTCR is a leading private equity firm that invests behind The Leaders Strategy™ – finding and partnering with management leaders in core domains to identify…”

Source: RevenueBase Database · checked Sep 29, 2026
13Partial evidenceBoston, MA, United StatesHQ checked Sep 29, 202651-200236 contacts →

Partial evidence

“Based in Boston and New York City, Charlesbank is a leading middle-market private investment firm with $21.5 billion in assets under management as of 3/31/2026.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceMenlo Park, CA, United StatesHQ checked Sep 29, 202651-200236 contacts →

Indirect evidence

“Accel-KKR is a technology-focused investment firm with $23 billion in capital commitments.”

Source: RevenueBase Database · checked Sep 29, 2026
15Strong evidenceNew York, NY, United StatesHQ checked Sep 29, 2026201-500227 contacts →

Strong evidence

“Carlyle AlpInvest is a leading global private equity investor with $107 billion of assets under management as of March 31, 2026, and employs more than 260 people in New York…”

Source: RevenueBase Database · checked Sep 29, 2026
16Strong evidenceSan Francisco, CA, United StatesHQ checked Sep 29, 202651-200220 contacts →

Strong evidence

“Founded in 1984, Hellman & Friedman (H&F) is one of the most experienced private equity investment firms operating today.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 202651-200220 contacts →

Indirect evidence

“Founded in 1994, American Securities is a leading U.S.”

Source: RevenueBase Database · checked Sep 29, 2026
18Strong evidenceNew York, CA, United StatesHQ checked Sep 29, 2026n/a199 contacts →

Strong evidence

“FdG Associates is a leading private equity investment firm with a strong track record of partnering with management in recapitalizations and management buyouts of middle-market…”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 2026201-500195 contacts →

Indirect evidence

“Sound Point is an alternative asset management firm founded in 2008 with particular expertise in credit strategies.”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceNew York, NY, United StatesHQ checked Sep 29, 202651-200172 contacts →

Indirect evidence

“Bringing large market expertise to smaller companies, Star Mountain’s philosophies include a data-driven and systematic approach to investing.”

Source: RevenueBase Database · checked Sep 29, 2026
21Strong evidencePhiladelphia, PA, United StatesHQ checked Sep 29, 202651-200168 contacts →

Strong evidence

“LLR Partners is a lower middle market private equity firm focused on investing in software and tech-enabled companies within the knowledge economy.”

Source: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 202651-200165 contacts →

Partial evidence

“Siguler Guff is a multi-strategy private markets investment firm which, together with its affiliates, has approximately $18.4 billion of assets under management as of December 31…”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceCoral Gables, FL, United StatesHQ checked Sep 29, 202651-200152 contacts →

Partial evidence

“Headquartered in Coral Gables, Florida and founded in 1981, Trivest is one of the oldest private investment firms in the Southeastern U.S.”

Source: RevenueBase Database · checked Sep 29, 2026
24Strong evidenceNew York, NY, United StatesHQ checked Sep 29, 202651-200142 contacts →

Strong evidence

“Arsenal is a leading private equity firm that specializes in investments in middle-market industrial growth and healthcare companies.”

Source: RevenueBase Database · checked Sep 29, 2026
25Partial evidenceNew York, NY, United StatesHQ checked Sep 29, 202651-200142 contacts →

Partial evidence

“Bregal Sagemount is a growth-focused private capital firm with over $11 billion in committed capital.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 1,982 secondary private equity firms based in the United States

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Secondary private equity firms based in the United States at a glance

As of Sep 29, 2026
54.8%Verified-email coverage
15.0Average contacts per company
1-10Median size (employees)
16.9%Largest-city concentration · New York
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
1,276
11-50
588
51-200
85
201-500
18
501-1,000
5
1,001-5,000
7
10001+
1

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 1,982 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 secondary private equity firms, 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 “secondary private equity firms”. 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 secondary private equity firms), 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 secondary private equity firms, 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, 16,311 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 29, 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.

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 secondary private equity firms, 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 secondary private equity firms are there based in the United States?

RevenueBase identified 1,982 secondary private equity firms 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?

Harbourvest Partners, headquartered in Boston, tops this list with the largest team on record.

Which city has the most secondary private equity firms?

New York leads with 335 headquartered companies, followed by Chicago (117) and Dallas (91).

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 16,311 verified decision-maker contacts tracked across these 1,982 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 29, 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.