Company lists · Data refreshed September 2026
Top 24 Secondary private equity firms based in Houston, United States
RevenueBase identified 44 secondary private equity firms headquartered in Houston, United States as of September 2026 and tracks 439 professional contacts across them, including 197 with verified work emails. Across the United States, New York is the largest hub for this category (335 companies); Houston has 44.
This list covers secondary private equity firms headquartered in Houston, 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 24 largest secondary private equity firms based in Houston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 120 contacts → | ||||
Strong evidence “Founded in 1982, The Sterling Group, is a private equity investment firm that targets controlling interests in basic manufacturing, industrial services and distribution companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 54 contacts → | ||||
Partial evidence “Founded in 1989, SCF Partners (“SCF”) provides equity capital and strategic growth assistance to build leading energy service and equipment companies that operate throughout the…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 42 contacts → | ||||
Partial evidence “GulfStar is one of the leading middle market investment banking firms in the United States, with deep experience in mergers and acquisitions, private capital placement and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 40 contacts → | ||||
Partial evidence “Trek One Capital is a family office backed private investment firm focused on lower and middle market acquisitions and strategic investments.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 26 contacts → | ||||
Partial evidence “Founded in 2006, Platform Partners LLC is a Houston-based private investment firm that partners with founders and executives of companies with enterprise values typically between…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 20 contacts → | ||||
Partial evidence “JDH Capital is a private investment firm based in Houston, TX.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 16 contacts → | ||||
Strong evidence “Post Oak Energy Capital is a Houston-based private equity firm primarily focused on making domestic investments in the upstream, midstream and oilfield services sectors of the…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 16 contacts → | ||||
Indirect evidence “CSL Capital Management, L.P.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 9 contacts → | ||||
Strong evidence “Bayou City Energy (BCE) is a private equity firm founded in 2015 to focus on making investments in the North American upstream oil and gas sector.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 6 contacts → | ||||
Partial evidence “We have a passion for- Improving the value and performance of privately owned businesses - Assisting business owners prepare for transition events, whether internal or external -…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 6 contacts → | ||||
Indirect evidence “We're interested in acquiring an exceptional company for long-term growth.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 4 contacts → | ||||
Strong evidence “Texas Ventures is a private equity and venture capital firm with expertise in structured finance, capital markets and technology.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 4 contacts → | ||||
Indirect evidence “Montrose Lane is an institutional-grade investment firm providing creative liquidity to the venture market.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 3 contacts → | ||||
Partial evidence “Seven Lakes Group is a private search fund formed by partners with a commercial background and proven management track records, looking to own and operate small businesses in a…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3 contacts → | ||||
Partial evidence “Hound Capital is an investor in smaller middle market private companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 3 contacts → | ||||
Partial evidence “Colton Capital Partners, LLC is a family owned investment company based in Houston that invests in small and middle market private companies across a variety of industries.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 contacts → | ||||
Indirect evidence “Magnus Oak Capital is an investment partnership led by two seasoned business leaders who are committed to investing in high quality companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Strong evidence “Green Heron Partners is a Houston, Texas-based private equity firm that focuses on providing capital and partnership through a principles-based approach to strategically viable…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Partial evidence “Crosstimbers Capital Group is a Houston-based principal investment firm, focused on providing growth equity to entrepreneur-owned companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 2 contacts → | ||||
Strong evidence “Founded in 2001, Freestone Partners is a Houston-based private equity firm that seeks to invest in and support middle market businesses.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 contacts → | ||||
Strong evidence “Adya Partners is a multi-strategy investment and advisory firm focused on:(i) private secondary investments in late-stage Companies, with a 3-5 year liquidity horizon.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Strong evidence “Four Count Holdings was founded with the goal of providing an alternative to traditional private equity solutions for lower-middle market businesses looking to scale.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Strong evidence “Milestone is a private equity group focusing on the small to middlemarket companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Indirect evidence “Reppert Capital Partners, Llc is a company based out of Memorial Dr, Suite 510, Houston, Texas, United States.” 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: secondary private equity firms. 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 secondary private equity firms.
- Partial evidence
- Its own public description names part of secondary private equity firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name secondary private equity firms. 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 24 of 44 secondary private equity firms based in Houston, United States
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Secondary private equity firms based in Houston, 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 Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 44 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 Houston, 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 Houston 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, 197 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.
Secondary private equity firms by metro in the United States
- Secondary private equity firms in New York335
- Secondary private equity firms in Chicago117
- Secondary private equity firms in Dallas91
- Secondary private equity firms in Los Angeles69
- Secondary private equity firms in Boston68
- Secondary private equity firms in San Francisco65
- Secondary private equity firms in Austin52
- Secondary private equity firms in Atlanta42
- Secondary private equity firms in Miami37
- Secondary private equity firms in Denver35
- Secondary private equity firms in Charlotte33
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 Houston, United States?
RevenueBase identified 44 secondary private equity firms headquartered in Houston, 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?
The Sterling Group, headquartered in Houston, tops this list with the largest team on record.
Which city in the United States has the most secondary private equity firms?
New York leads the United States with 335 headquartered companies, followed by Chicago (117) and Dallas (91). Houston has 44.
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 197 verified decision-maker contacts tracked across these 44 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.
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