Company lists · Data refreshed September 2026
Top 25 Private equity sponsors with mezzanine funding companies based in San Francisco, United States
RevenueBase identified 57 private equity sponsors with mezzanine funding companies headquartered in San Francisco, United States as of September 2026 and tracks 999 professional contacts across them, including 555 with verified work emails. Across the United States, New York is the largest hub for this category (333 companies); San Francisco has 57.
This list covers private equity sponsors with mezzanine funding companies headquartered in San Francisco, 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 San Francisco, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 126 contacts → | ||||
Strong evidence “Golden Gate Capital is a San Francisco-based private equity investment firm with approximately $20 billion in cumulative committed capital.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 112 contacts → | ||||
Partial evidence “Founded in 1998, US Capital Global offers a range of advanced financial solutions, including debt, equity, and investment products customized for middle-market enterprises and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 106 contacts → | ||||
Strong evidence “Turn/River Capital is a private equity firm that applies a proprietary growth engineering strategy to investing, partnering with software businesses to accelerate growth and build…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 96 contacts → | ||||
Strong evidence “JH Partners, LLC ("JH Partners" or "JHP") is a San Francisco-based private equity firm focused on building sustainable, long-term equity value in consumer and marketing-driven…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 84 contacts → | ||||
Strong evidence “Genstar Capital is a leading middle-market private equity firm, investing in high quality companies for over 30 years.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 56 contacts → | ||||
Indirect evidence “For half a century, ATEL Capital Group has financed the companies transforming our economy-deploying capital to more than businesses globally.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 44 contacts → | ||||
Indirect evidence “Founded in 2016, Banneker is dedicated to empowering management teams on their journey to build exceptional software companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 33 contacts → | ||||
Strong evidence “Main Post Partners is a private equity investment firm focused on investing $50 – $250+ million in high-growth companies across the consumer value chain.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 33 contacts → | ||||
Partial evidence “Founded in 1991, Calera Capital has invested over $5 billion of equity capital in the middle market, predominantly in founder, family, and management-owned businesses across a…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 32 contacts → | ||||
Partial evidence “Tree Line Capital Partners is a private credit asset management firm focused on direct lending to the lower middle-market.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 28 contacts → | ||||
Indirect evidence “Knox Lane is a San Francisco-based middle-market investment firm, comprised of investors and operators from blue-chip backgrounds that have a long history of working together…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 28 contacts → | ||||
Strong evidence “Housatonic Partners is a private equity firm investing in high growth, recurring revenue service companies operating in a number of industries including healthcare, software, and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 25 contacts → | ||||
Indirect evidence “Carrick Capital Partners is the first stop for entrepreneurs and business owners who are seeking unmatched expertise to help their businesses scale.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 18 contacts → | ||||
Strong evidence “Valeas Capital Partners is a San Francisco-based growth-buyout private equity firm focused on partnering with founders and CEOs.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 16 contacts → | ||||
Strong evidence “Castle Crow is a merchant banking group specializing in buyside private equity investments and now has affiliated deal team professionals in five North American locations…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 14 contacts → | ||||
Partial evidence “Ponte Partners is an investment management firm headquartered in San Francisco, California, which collaborates with institutional and private investors, fund managers and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 13 contacts → | ||||
Strong evidence “An innovative private equity firm built to capitalize on our investing experience and the operating expertise of our industry advisers to accelerate the growth of leading consumer…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 12 contacts → | ||||
Strong evidence “P4G Capital Management is a lower middle market, operationally focused private equity firm.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 12 contacts → | ||||
Strong evidence “Spotlight Equity Partners is a private equity firm focused on acquiring controlling interests in software and technology-enabled services companies headquartered in the United…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 9 contacts → | ||||
Indirect evidence “L2 Point is an investment firm focused on innovative capital solutions for growth companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Strong evidence “Next Horizon Capital is a middle-market, growth-oriented private equity firm that focuses on investing in Business Services, Technology and Information sectors.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 6 contacts → | ||||
Partial evidence “Avon River Ventures is a structured credit and private capital platform with a $250 M+ deployment track record across North America.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 6 contacts → | ||||
Partial evidence “We provide private capital to distressed companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 5 contacts → | ||||
Strong evidence “Catapult Capital LLC is a private equity firm that focuses on small to middle-market transactions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Indirect evidence “Venture Firm” 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 57 private equity sponsors with mezzanine funding companies based in San Francisco, United States
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Private equity sponsors with mezzanine funding companies based in San Francisco, United States at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for San Francisco, so it is reported there. Company counts and contact totals on this page are exact for San Francisco, over 57 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 San Francisco, 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 San Francisco 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, 555 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 in the United States
- 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 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 San Francisco, United States?
RevenueBase identified 57 private equity sponsors with mezzanine funding companies headquartered in San Francisco, 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?
Golden Gate Capital, headquartered in San Francisco, tops this list with the largest team on record.
Which city in the United States has the most private equity sponsors with mezzanine funding companies?
New York leads the United States with 333 headquartered companies, followed by Chicago (139) and Los Angeles (98). San Francisco has 57.
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 555 verified decision-maker contacts tracked across these 57 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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