Company lists · Data refreshed September 2026
Top 25 Private equity operational support companies based in Houston, United States
RevenueBase identified 71 private equity operational support companies headquartered in Houston, United States as of September 2026 and tracks 444 professional contacts across them, including 215 with verified work emails. Across the United States, New York is the largest hub for this category (226 companies); Houston has 71.
This list covers private equity operational support companies 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 25 largest private equity operational support companies 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 | 41 contacts → | ||||
Strong evidence “Fund Services Group was founded to support the growth of private fund managers by providing outsourced finance, operations, and compliance services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 29 contacts → | ||||
Indirect evidence “Founded in 1990, Capstreet invests in lower middle market business services companies.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 17 contacts → | ||||
Strong evidence “Lilium Group LLC (“Lilium”) is a Houston-based private equity fund manager focused on middle market investments in the transportation and industrials sectors.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 16 contacts → | ||||
Partial evidence “Founded in Genesis Park uses operational expertise, discipline and patience to build value for portfolio companies and investors, regardless of prevailing market conditions.” 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 | 12 contacts → | ||||
Indirect evidence “Fairlead Advisors turns board-room strategic planning into real-world results Founded in 2010, Fairlead’s Operating Partner and C-level leadership experience combines with a…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 8 contacts → | ||||
Partial evidence “FireForge Capital is an acquisitions and operations company that specializes in working with capital partners and management teams to build up lower-middle-market companies ready…” 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 “At the Catalyst Group, we believe long-term partnerships with business owners, entrepreneurs and employees produce the greatest outcomes.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 5 contacts → | ||||
Strong evidence “Private Equity firm - We are a Houston-based lower middle market private equity firm with a focus on industrial product and service companies serving the infrastructure, energy…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 5 contacts → | ||||
Indirect evidence “Catapult invests primarily in start-up oilfield services companies (“Affiliates”) established by experienced, entrepreneurial managers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 5 contacts → | ||||
Strong evidence “A Middle-Market Private Equity Firm, Investment Advisory & Leadership Platform” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 4 contacts → | ||||
Indirect evidence “PaintMire is an advisory firm with problem solving expertise to work with clients on value added decisions related to strategic options, change management, process and efficiency…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 contacts → | ||||
Indirect evidence “The Practice Advisory Group is not just a consulting firm.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 contacts → | ||||
Indirect evidence “Our collective years of owning and operating companies positions us well to strengthen the core of a business and continue its legacy.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 4 contacts → | ||||
Strong evidence “Aspire Growth Partners exclusively serves private equity firms with commercial due diligence and strategic growth planning with the rigor to drive informed decision making” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 4 contacts → | ||||
Partial evidence “Willistown Capital is a private investment firm based in Houston, Texas.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 contacts → | ||||
Indirect evidence “BA Interests, LLC, operates businesses in multiple industries.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 contacts → | ||||
Indirect evidence “We help service-oriented companies improve profitability and performance by identifying and solving for the obstacles that get in the way of success.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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. | |||||
| 23 | 3 contacts → | ||||
Strong evidence “Saltgrass Ventures is a founder-friendly private equity group combining investment with consulting expertise.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 2 contacts → | ||||
Strong evidence “Venatis Partners is a founder led executive search firm built exclusively for private equity.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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. | |||||
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 operational support 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 operational support companies.
- Partial evidence
- Its own public description names part of private equity operational support 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 operational support 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 71 private equity operational support companies based in Houston, United States
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Private equity operational support companies 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 71 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 operational support 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 Houston, United States whose own description of what they do matches “private equity operational support 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 operational support 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 operational support companies, 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, 215 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 operational support companies by metro in the United States
- Private equity operational support companies in New York226
- Private equity operational support companies in Chicago110
- Private equity operational support companies in Dallas70
- Private equity operational support companies in Boston62
- Private equity operational support companies in Los Angeles62
- Private equity operational support companies in Atlanta52
- Private equity operational support companies in Austin46
- Private equity operational support companies in Denver44
- Private equity operational support companies in San Francisco44
- Private equity operational support companies in Miami35
- Private equity operational support companies in Charlotte29
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 operational support 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 operational support companies are there based in Houston, United States?
RevenueBase identified 71 private equity operational support companies 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 private equity operational support companies?
New York leads the United States with 226 headquartered companies, followed by Chicago (110) and Houston (71).
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 215 verified decision-maker contacts tracked across these 71 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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