Company lists · Data refreshed September 2026
Top 25 Private equity sponsors with mezzanine funding companies based in the United States
RevenueBase identified 2,246 private equity sponsors with mezzanine funding companies headquartered in the United States as of September 2026 and tracks 35,532 professional contacts across them, including 19,700 with verified work emails. New York is the largest hub.
This list covers private equity sponsors with mezzanine funding 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 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.
The 25 largest private equity sponsors with mezzanine funding companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,301 contacts → | ||||
Indirect evidence “H.I.G.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,126 contacts → | ||||
Partial evidence “Golub Capital is a market-leading, award-winning direct lender and experienced private credit manager.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 881 contacts → | ||||
Strong evidence “TA is a leading global private equity firm focused on scaling growth in profitable companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 339 contacts → | ||||
Indirect evidence “MidCap Financial is a middle-market focused, specialty finance firm that provides senior debt solutions to companies across all industries.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 327 contacts → | ||||
Strong evidence “Shore Capital, a Chicago-based private equity firm with an office in Nashville, is an investor in lower-middle market companies in the Healthcare, Food and Beverage, Business…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 272 contacts → | ||||
Indirect evidence “Since 2007, we’ve specialized in transforming good businesses into great companies through our differentiated approach to partnership investing.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 260 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, 2026Thanks. The Data Team will review it. | |||||
| 13 | 255 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | 237 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, 2026Thanks. The Data Team will review it. | |||||
| 15 | 236 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, 2026Thanks. The Data Team will review it. | |||||
| 16 | 236 contacts → | ||||
Indirect evidence “Accel-KKR is a technology-focused investment firm with $23 billion in capital commitments.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 220 contacts → | ||||
Indirect evidence “Founded in 1994, American Securities is a leading U.S.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 211 contacts → | ||||
Strong evidence “Headquartered in Boston, with offices in San Francisco, New York, London and Hong Kong, Audax Private Equity is a leading private equity platform focused on investing across the…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 207 contacts → | ||||
Indirect evidence “AEA Investors is a leading global alternative investment firm that has partnered with exceptional middle-market businesses for over 55 years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 199 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, 2026Thanks. The Data Team will review it. | |||||
| 21 | 172 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, 2026Thanks. The Data Team will review it. | |||||
| 22 | 168 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, 2026Thanks. The Data Team will review it. | |||||
| 23 | 160 contacts → | ||||
Partial evidence “Providence Equity Partners L.L.C.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 160 contacts → | ||||
Partial evidence “Based in New York City, Stripes is a leading growth equity firm that invests in branded consumer and enterprise companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 158 contacts → | ||||
Strong evidence “We are a private equity firm that invests in North American and European B2B middle-market industrial and specialty distribution businesses.” Source: RevenueBase Database · checked Sep 29, 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: private equity sponsors with mezzanine funding 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 private equity sponsors with mezzanine funding companies.
- Partial evidence
- Its own public description names part of private equity sponsors with mezzanine funding companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name private equity sponsors with mezzanine funding 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 2,246 private equity sponsors with mezzanine funding companies based in the United States
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Private equity sponsors with mezzanine funding companies based in the United States at a glance
As of Sep 29, 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 2,246 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 private equity sponsors with mezzanine funding 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 “private equity sponsors with mezzanine funding 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 private equity sponsors with mezzanine funding 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 private equity sponsors with mezzanine funding 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, 19,700 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.
Private equity sponsors with mezzanine funding companies by metro
- Private equity sponsors with mezzanine funding companies in New York333
- Private equity sponsors with mezzanine funding companies in Chicago139
- Private equity sponsors with mezzanine funding companies in Los Angeles98
- Private equity sponsors with mezzanine funding companies in Dallas87
- Private equity sponsors with mezzanine funding companies in Houston73
- Private equity sponsors with mezzanine funding companies in Boston72
- Private equity sponsors with mezzanine funding companies in San Francisco57
- Private equity sponsors with mezzanine funding companies in Austin55
- Private equity sponsors with mezzanine funding companies in Miami50
- Private equity sponsors with mezzanine funding companies in Atlanta46
- Private equity sponsors with mezzanine funding companies in Denver31
- Private equity sponsors with mezzanine funding companies in Charlotte30
- Private equity sponsors with mezzanine funding companies in Cleveland27
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 private equity sponsors with mezzanine funding 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 private equity sponsors with mezzanine funding companies are there based in the United States?
RevenueBase identified 2,246 private equity sponsors with mezzanine funding 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?
H.I.G. Capital, headquartered in Miami, tops this list with the largest team on record.
Which city has the most private equity sponsors with mezzanine funding companies?
New York leads with 333 headquartered companies, followed by Chicago (139) and Los Angeles (98).
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 19,700 verified decision-maker contacts tracked across these 2,246 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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Private equity sponsors with mezzanine funding companies by geography
- Private equity sponsors with mezzanine funding companies based in Toronto, Canada
- Private equity sponsors with mezzanine funding companies based in Paris, France
- Private equity sponsors with mezzanine funding companies based in London, United Kingdom
- Private equity sponsors with mezzanine funding companies based in Atlanta, United States
- Private equity sponsors with mezzanine funding companies based in Austin, United States
- Private equity sponsors with mezzanine funding companies based in Boston, United States
- Private equity sponsors with mezzanine funding companies based in Charlotte, United States
- Private equity sponsors with mezzanine funding companies based in Chicago, United States
- Private equity sponsors with mezzanine funding companies based in Cleveland, United States
- Private equity sponsors with mezzanine funding companies based in Dallas, United States
- Private equity sponsors with mezzanine funding companies based in Denver, United States
- Private equity sponsors with mezzanine funding companies based in Houston, United States
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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