Company lists · Data refreshed September 2026

Top 20 Private equity healthcare firms based in Houston, United States

RevenueBase identified 42 private equity healthcare firms headquartered in Houston, United States as of September 2026 and tracks 675 professional contacts across them, including 372 with verified work emails. Across the United States, New York is the largest hub for this category (318 companies); Houston has 42.

This list covers private equity healthcare 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.

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
42Companies
675Contacts tracked
372Verified emails
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The 20 largest private equity healthcare firms based in Houston, United States

Ranked by team size
Top 20 of 42 private equity healthcare firms based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to private equity healthcare 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
1Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 202651-200144 contacts →

Indirect evidence

“Formed in 2005, Lime Rock Resources acquires, operates, and improves lower-risk oil and gas properties in the United States.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceHouston, TX, United StatesHQ checked Sep 29, 20261,001-5,000127 contacts →

Partial evidence

“Headquartered in Houston, Texas and founded in 2011, Nutex Health Inc.(NASDAQ: NUTX) is a healthcare management and operations company with two divisions: a Hospital Division and…”

Source: RevenueBase Database · checked Sep 29, 2026
3Strong evidenceHouston, TX, United StatesHQ checked Sep 29, 202611-50120 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, 2026
4Strong evidenceHouston, TX, United StatesHQ checked Sep 29, 20261,001-5,00099 contacts →

Strong evidence

“Established in 1997, ZT Corporate is a private investment firm with a portfolio in healthcare services and automotive dealerships.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 2026501-1,00028 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 20261-1016 contacts →

Indirect 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, 2026
7Strong evidenceHouston, TX, United StatesHQ checked Sep 29, 202611-5016 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, 2026
8Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 202611-5014 contacts →

Indirect evidence

“Dauntless Capital Partners invests in businesses across select industries where strategic capital and operational excellence can drive exceptional growth.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 202611-5011 contacts →

Indirect evidence

“Thesis Capital is an investment partnership that enables visionary entrepreneurs, operators, and family-owned businesses to become industry leaders.”

Source: RevenueBase Database · checked Sep 29, 2026
10Strong evidenceHouston, TX, United StatesHQ checked Sep 29, 202611-509 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, 2026
11Strong evidenceHouston, TX, United StatesHQ checked Sep 29, 202611-507 contacts →

Strong evidence

“Milton Street is a Houston-based private equity firm focused on control investments in the North American, lower middle market industrial sector.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceHouston, TX, United StatesHQ checked Sep 29, 20261-106 contacts →

Indirect evidence

“We're interested in acquiring an exceptional company for long-term growth.”

Source: RevenueBase Database · checked Sep 29, 2026
13Strong evidenceHouston, TX, United StatesHQ checked Sep 29, 20261-104 contacts →

Strong evidence

“We are a growth stage Private Equity Fund focused on protecting and improving people’s lives, from patients to healthcare professionals by revolutionizing the healthcare system…”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceHouston, TX, United StatesHQ checked Sep 29, 20261-104 contacts →

Partial evidence

“Family office built through an amalgamation of various backgrounds and experiences with focus on Healthcare and Real Estate Development.”

Source: RevenueBase Database · checked Sep 29, 2026
15Partial evidenceHouston, United StatesHQ checked Sep 29, 20261-103 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, 2026
16Strong evidenceHouston, TX, United StatesHQ checked Sep 29, 20261-102 contacts →

Strong evidence

“At Portal Drive Partners, we provide private equity capital, collaborative partnerships, and personalized investment strategies to lower middle market businesses within the…”

Source: RevenueBase Database · checked Sep 29, 2026
17Strong evidenceHouston, TX, United StatesHQ checked Sep 29, 202651-2002 contacts →

Strong evidence

“Sawdust Capital, LLC, is a Private Equity Firm focused on Healthcare and “Complementary Asset Related Investments.™””

Source: RevenueBase Database · checked Sep 29, 2026
18Strong evidenceHouston, United StatesHQ checked Sep 29, 20261-101 contacts →

Strong evidence

“we are a houston based private equity group run by physicians, management consultants and entrepreneurs who invest in the commercial real estate sector and innovative startups.”

Source: RevenueBase Database · checked Sep 29, 2026
19Partial evidenceHouston, TX, United StatesHQ checked Sep 29, 20261-101 contacts →

Partial evidence

“Established in 1995, AmeriFinancial is a private investment, venture capital and advisory firm that has specialized exclusively in early stage and emerging growth companies since…”

Source: RevenueBase Database · checked Sep 29, 2026
20Strong evidenceHouston, TX, United StatesHQ checked Sep 29, 20261-101 contacts →

Strong evidence

“D4 Consulting Group partners with private equity firms and their healthcare portfolio companies to accelerate cash generation and expand EBITDA through focused operational…”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 20 of 42 private equity healthcare firms based in Houston, United States

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Private equity healthcare firms based in Houston, United States at a glance

As of Sep 29, 2026
55.1%Verified-email coverage
16.1Average contacts per company
1-10Median size (employees)
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
10
51-200
3
501-1,000
1
1,001-5,000
3

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 42 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 healthcare 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 “private equity healthcare 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 private equity healthcare 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 private equity healthcare 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, 372 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 private equity healthcare 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 private equity healthcare firms are there based in Houston, United States?

RevenueBase identified 42 private equity healthcare 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?

Lime Rock Resources, headquartered in Houston, tops this list with the largest team on record.

Which city in the United States has the most private equity healthcare firms?

New York leads the United States with 318 headquartered companies, followed by Chicago (124) and Boston (101). Houston has 42.

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 372 verified decision-maker contacts tracked across these 42 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.