Company lists · Data refreshed September 2026
Top 25 Private investment companies based in Houston, United States
RevenueBase identified 125 company matches for private investment companies associated with Houston, United States as of September 2026 and tracks 1,226 professional contacts across them, including 600 with verified work emails. Across the United States, New York is the largest hub for this category (786 companies); Houston has 125.
This list covers company matches for private investment companies associated with Houston, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 investment companies based in Houston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 173 contacts → | ||||
Exact match “Founded in 1998, Quantum Capital Group is a leading provider of private equity, credit, and venture capital to the global energy and energy transition industry, having managed…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 2 | 131 contacts → | ||||
Exact match “Main Street Capital (NYSE: MAIN) is a leading provider of long-term, flexible capital solutions to established lower middle market companies, supporting American businesses that…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 3 | 120 contacts → | ||||
Exact match “Founded in 1982, The Sterling Group, is a private equity investment firm that targets controlling interests in basic manufacturing, industrial services and distribution companies.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 4 | 80 contacts → | ||||
Exact match “Sanders Morris was founded in 1987 to formulate a financial services firm that could not only capitalize on investment opportunities – but could actually create them.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 5 | 54 contacts → | ||||
Exact match “Pickering Energy Partners (PEP) is an energy focused financial services platform.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 6 | 54 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 7 | 42 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 8 | 40 contacts → | ||||
Exact match “Trek One Capital is a family office backed private investment firm focused on lower and middle market acquisitions and strategic investments.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 9 | 29 contacts → | ||||
Exact match “Founded in 1990, Capstreet invests in lower middle market business services companies.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 10 | 26 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 11 | 22 contacts → | ||||
Exact match “Interra Capital is a boutique private equity and financial advisory firm headquartered in Houston, Texas with a primary focus on commercial real estate investments and secondary…” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 12 | 21 contacts → | ||||
Exact match “Yellowstone Capital Partners, LLC is based in Houston and New York.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 13 | 20 contacts → | ||||
Exact match “JDH Capital is a private investment firm based in Houston, TX.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 14 | 17 contacts → | ||||
Exact match “Lilium Group LLC (“Lilium”) is a Houston-based private equity fund manager focused on middle market investments in the transportation and industrials sectors.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 15 | 16 contacts → | ||||
Exact match “Founded in Genesis Park uses operational expertise, discipline and patience to build value for portfolio companies and investors, regardless of prevailing market conditions.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 16 | 15 contacts → | ||||
Exact match “We empower companies to unearth their potential, build lasting value and break apart from the crowd.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 17 | 14 contacts → | ||||
Exact match “Dauntless Capital Partners invests in businesses across select industries where strategic capital and operational excellence can drive exceptional growth.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 18 | 13 contacts → | ||||
Exact match “Jumana is a private investment firm specializing in partnerships with entrepreneur lead companies that are looking to transform into enduring businesses.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 19 | 11 contacts → | ||||
Exact match “Thesis Capital is an investment partnership that enables visionary entrepreneurs, operators, and family-owned businesses to become industry leaders.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 20 | 11 contacts → | ||||
Exact match “JSJ Investments is a Texas-based family office with a 20-year history of investing in promising businesses.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 21 | 8 contacts → | ||||
Exact match “Winterford Capital is an investment firm that seeks to partner with outstanding businesses and management teams.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 22 | 7 contacts → | ||||
Exact match “Aventurine Partners is focused on investment opportunities across the energy, power, and industrial sectors.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 23 | 7 contacts → | ||||
Exact match “We help companies grow their businesses, aligning them with the right capital partners and strategic relationships.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 24 | 7 contacts → | ||||
Exact match “Outfitter Energy Capital is a Houston-based private equity group focused on middle-market investment opportunities in the oil and gas industry.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
| 25 | 7 contacts → | ||||
Exact match “A Houston-based Private Equity Firm providing access to opportunistic investments in Real Estate, Energy and other alternative asset classes.” Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “private investment companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 125 private investment companies based in Houston, United States
See the full list, filter by size, metro and specialty, and access 600 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Private investment companies based in Houston, United States at a glance
As of Sep 20, 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 125 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Company records associated with Houston, United States whose business descriptions match “private investment companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 600 professional contacts with verified work emails across the full matched dataset. 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 20, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Private investment companies by metro in the United States
- Private investment companies in New York786
- Private investment companies in Chicago222
- Private investment companies in Los Angeles173
- Private investment companies in Dallas164
- Private investment companies in San Francisco145
- Private investment companies in Boston117
- Private investment companies in Miami113
- Private investment companies in Austin111
- Private investment companies in Atlanta89
- Private investment companies in Denver63
- Private investment companies in Charlotte53
- Private investment companies in Washington46
- Private investment companies in Tampa39
- Private investment companies in San Diego38
- Private investment companies in Newport Beach37
- Private investment companies in Minneapolis35
- Private investment companies in Philadelphia34
- Private investment companies in Cleveland30
- Private investment companies in Birmingham29
- Private investment companies in Nashville28
- Private investment companies in Stamford27
- Private investment companies in Beverly Hills26
- Private investment companies in Scottsdale26
- Private investment companies in Seattle25
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “private investment companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many private investment companies are there based in Houston, United States?
RevenueBase identified 125 company matches for private investment companies associated with Houston, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Quantum Capital Group tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in the United States has the most private investment companies?
New York leads the United States with 786 company records, followed by Chicago (222) and Los Angeles (173). Houston has 125.
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 600 professional contacts with verified work emails tracked across these 125 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 20, 2026.
Ready to reach these companies? Verified emails and direct dials for all 125 private investment companies based in Houston, United States. Start with a free account, no credit card.
Download this list →Related lists
Private investment companies by geography
- Private investment companies based in Calgary, Canada
- Private investment companies based in Montreal, Canada
- Private investment companies based in Toronto, Canada
- Private investment companies based in Vancouver, Canada
- Private investment companies based in Atlanta, United States
- Private investment companies based in Austin, United States
- Private investment companies based in Beverly Hills, United States
- Private investment companies based in Birmingham, United States
- Private investment companies based in Boston, United States
- Private investment companies based in Charlotte, United States
- Private investment companies based in Chicago, United States
- Private investment companies based in Cleveland, 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 SmartSearch, 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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Private investment companies based in Calgary, Canada
- Private investment companies based in Montreal, Canada
- Private investment companies based in Toronto, Canada
- Private investment companies based in Vancouver, Canada
- Private investment companies based in Atlanta, United States
- Private investment companies based in Austin, United States
Company intelligence · public preview
Top 25 private investment companies based in Houston, United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 125 matching company records for private investment companies based in Houston, United States, with 1,226 tracked contacts and 600 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 private investment companies based in Houston, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Quantum Capital Groupquantumcap.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 173 contacts → |
“Founded in 1998, Quantum Capital Group is a leading provider of private equity, credit, and venture capital to the global energy and energy transition industry, having managed…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Main Street Capital Corporationmainstcapital.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 131 contacts → |
“Main Street Capital (NYSE: MAIN) is a leading provider of long-term, flexible capital solutions to established lower middle market companies, supporting American businesses that…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  The Sterling Groupsterling-group.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 120 contacts → |
“Founded in 1982, The Sterling Group, is a private equity investment firm that targets controlling interests in basic manufacturing, industrial services and distribution companies.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Sanders Morrissandersmorris.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 80 contacts → |
“Sanders Morris was founded in 1987 to formulate a financial services firm that could not only capitalize on investment opportunities – but could actually create them.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Pickering Energy Partnerspickeringenergypartners.comHQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 54 contacts → |
“Pickering Energy Partners (PEP) is an energy focused financial services platform.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  SCF Partnersscfpartners.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 54 contacts → |
“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…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Gulfstar Groupgulfstargroup.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 42 contacts → |
“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…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Trek ONE Capitaltrekonecapital.comHQ: Houston, TX, United StatesReported employees: Not recorded | Houston, TX, United States | Not recorded | Exact match | 40 contacts → |
“Trek One Capital is a family office backed private investment firm focused on lower and middle market acquisitions and strategic investments.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  The Capstreet Groupcapstreet.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 29 contacts → |
“Founded in 1990, Capstreet invests in lower middle market business services companies.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Platform Partners LLCplatformllc.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 26 contacts → |
“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…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Interra Capital Groupinterracapital.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 22 contacts → |
“Interra Capital is a boutique private equity and financial advisory firm headquartered in Houston, Texas with a primary focus on commercial real estate investments and secondary…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Yellowstone Capital Partners, LLCyellowstonecapital.comHQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 21 contacts → |
“Yellowstone Capital Partners, LLC is based in Houston and New York.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  JDH Capital Companyjdhcap.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 20 contacts → |
“JDH Capital is a private investment firm based in Houston, TX.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Lilium Group LLClilium-holdings.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 17 contacts → |
“Lilium Group LLC (“Lilium”) is a Houston-based private equity fund manager focused on middle market investments in the transportation and industrials sectors.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Genesis Parkgenesis-park.comHQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 16 contacts → |
“Founded in Genesis Park uses operational expertise, discipline and patience to build value for portfolio companies and investors, regardless of prevailing market conditions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Amberjack Capital Partnersamberjackcapital.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 15 contacts → |
“We empower companies to unearth their potential, build lasting value and break apart from the crowd.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Dauntless Capital Partnersdauntlesscapital.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 14 contacts → |
“Dauntless Capital Partners invests in businesses across select industries where strategic capital and operational excellence can drive exceptional growth.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Jumana Capitaljumanacapital.comHQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 13 contacts → |
“Jumana is a private investment firm specializing in partnerships with entrepreneur lead companies that are looking to transform into enduring businesses.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Thesis Capital Partnersthesiscapital.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 11 contacts → |
“Thesis Capital is an investment partnership that enables visionary entrepreneurs, operators, and family-owned businesses to become industry leaders.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  JSJ Investments INCjsjinvestments.comHQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 11 contacts → |
“JSJ Investments is a Texas-based family office with a 20-year history of investing in promising businesses.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Winterford Capitalwinterfordcapital.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 8 contacts → |
“Winterford Capital is an investment firm that seeks to partner with outstanding businesses and management teams.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Aventurine Partnersaventurinepartners.comHQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 7 contacts → |
“Aventurine Partners is focused on investment opportunities across the energy, power, and industrial sectors.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Market Street Capital, INCmarketstreetcp.comHQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 7 contacts → |
“We help companies grow their businesses, aligning them with the right capital partners and strategic relationships.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Outfitter Energy Capitaloutfitterenergy.comHQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 7 contacts → |
“Outfitter Energy Capital is a Houston-based private equity group focused on middle-market investment opportunities in the oil and gas industry.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Leggett Venturesleggettventures.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 7 contacts → |
“A Houston-based Private Equity Firm providing access to opportunistic investments in Real Estate, Energy and other alternative asset classes.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 125 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Private investment companies: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
125 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 125 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Private investment companies by metro in the United States
- Private investment companies in New York786
- Private investment companies in Chicago222
- Private investment companies in Los Angeles173
- Private investment companies in Dallas164
- Private investment companies in San Francisco145
- Private investment companies in Boston117
- Private investment companies in Miami113
- Private investment companies in Austin111
- Private investment companies in Atlanta89
- Private investment companies in Denver63
- Private investment companies in Charlotte53
- Private investment companies in Washington46
- Private investment companies in Tampa39
- Private investment companies in San Diego38
- Private investment companies in Newport Beach37
- Private investment companies in Minneapolis35
- Private investment companies in Philadelphia34
- Private investment companies in Cleveland30
- Private investment companies in Birmingham29
- Private investment companies in Nashville28
- Private investment companies in Stamford27
- Private investment companies in Beverly Hills26
- Private investment companies in Scottsdale26
- Private investment companies in Seattle25
Questions about this company list
What does Exact match mean for private investment companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many private investment companies did RevenueBase find based in Houston, United States?
The saved snapshot records 125 matching company records, 1,226 tracked contacts and 600 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Private investment companies by geography
- Private investment companies based in Calgary, Canada
- Private investment companies based in Montreal, Canada
- Private investment companies based in Toronto, Canada
- Private investment companies based in Vancouver, Canada
- Private investment companies based in Atlanta, United States
- Private investment companies based in Austin, United States
- Private investment companies based in Beverly Hills, United States
- Private investment companies based in Birmingham, United States
- Private investment companies based in Boston, United States
- Private investment companies based in Charlotte, United States
- Private investment companies based in Chicago, United States
- Private investment companies based in Cleveland, United States
Cite this list
RevenueBase Data Team. Top 25 private investment companies based in Houston, United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/private-investment-companies/united-states/houston.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Private investment companies based in Calgary, Canada
- Private investment companies based in Montreal, Canada
- Private investment companies based in Toronto, Canada
- Private investment companies based in Vancouver, Canada
- Private investment companies based in Atlanta, United States
- Private investment companies based in Austin, United States
Company intelligence · public preview
Top 25 private investment companies based in Houston, United States
RevenueBase records 125 matching company records for private investment companies based in Houston, United States, with 1,226 tracked contacts and 600 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 20, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 private investment companies based in Houston, United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Quantum Capital Groupquantumcap.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 173 contacts → |
“Founded in 1998, Quantum Capital Group is a leading provider of private equity, credit, and venture capital to the global energy and energy transition industry, having managed…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Main Street Capital Corporationmainstcapital.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 131 contacts → |
“Main Street Capital (NYSE: MAIN) is a leading provider of long-term, flexible capital solutions to established lower middle market companies, supporting American businesses that…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | The Sterling Groupsterling-group.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 120 contacts → |
“Founded in 1982, The Sterling Group, is a private equity investment firm that targets controlling interests in basic manufacturing, industrial services and distribution companies.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Sanders Morrissandersmorris.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 80 contacts → |
“Sanders Morris was founded in 1987 to formulate a financial services firm that could not only capitalize on investment opportunities – but could actually create them.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Pickering Energy Partnerspickeringenergypartners.com HQ: Houston, TX, United StatesReported employees: 51-200 | Houston, TX, United States | 51-200 | Exact match | 54 contacts → |
“Pickering Energy Partners (PEP) is an energy focused financial services platform.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | SCF Partnersscfpartners.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 54 contacts → |
“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…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Gulfstar Groupgulfstargroup.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 42 contacts → |
“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…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Trek ONE Capitaltrekonecapital.com HQ: Houston, TX, United StatesReported employees: Not recorded | Houston, TX, United States | Not recorded | Exact match | 40 contacts → |
“Trek One Capital is a family office backed private investment firm focused on lower and middle market acquisitions and strategic investments.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | The Capstreet Groupcapstreet.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 29 contacts → |
“Founded in 1990, Capstreet invests in lower middle market business services companies.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Platform Partners LLCplatformllc.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 26 contacts → |
“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…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Interra Capital Groupinterracapital.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 22 contacts → |
“Interra Capital is a boutique private equity and financial advisory firm headquartered in Houston, Texas with a primary focus on commercial real estate investments and secondary…” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Yellowstone Capital Partners, LLCyellowstonecapital.com HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 21 contacts → |
“Yellowstone Capital Partners, LLC is based in Houston and New York.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | JDH Capital Companyjdhcap.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 20 contacts → |
“JDH Capital is a private investment firm based in Houston, TX.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Lilium Group LLClilium-holdings.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 17 contacts → |
“Lilium Group LLC (“Lilium”) is a Houston-based private equity fund manager focused on middle market investments in the transportation and industrials sectors.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Genesis Parkgenesis-park.com HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 16 contacts → |
“Founded in Genesis Park uses operational expertise, discipline and patience to build value for portfolio companies and investors, regardless of prevailing market conditions.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Amberjack Capital Partnersamberjackcapital.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 15 contacts → |
“We empower companies to unearth their potential, build lasting value and break apart from the crowd.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Dauntless Capital Partnersdauntlesscapital.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 14 contacts → |
“Dauntless Capital Partners invests in businesses across select industries where strategic capital and operational excellence can drive exceptional growth.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Jumana Capitaljumanacapital.com HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 13 contacts → |
“Jumana is a private investment firm specializing in partnerships with entrepreneur lead companies that are looking to transform into enduring businesses.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Thesis Capital Partnersthesiscapital.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 11 contacts → |
“Thesis Capital is an investment partnership that enables visionary entrepreneurs, operators, and family-owned businesses to become industry leaders.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | JSJ Investments INCjsjinvestments.com HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 11 contacts → |
“JSJ Investments is a Texas-based family office with a 20-year history of investing in promising businesses.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Winterford Capitalwinterfordcapital.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 8 contacts → |
“Winterford Capital is an investment firm that seeks to partner with outstanding businesses and management teams.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Aventurine Partnersaventurinepartners.com HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 7 contacts → |
“Aventurine Partners is focused on investment opportunities across the energy, power, and industrial sectors.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Market Street Capital, INCmarketstreetcp.com HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 7 contacts → |
“We help companies grow their businesses, aligning them with the right capital partners and strategic relationships.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Outfitter Energy Capitaloutfitterenergy.com HQ: Houston, TX, United StatesReported employees: 1-10 | Houston, TX, United States | 1-10 | Exact match | 7 contacts → |
“Outfitter Energy Capital is a Houston-based private equity group focused on middle-market investment opportunities in the oil and gas industry.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Leggett Venturesleggettventures.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 7 contacts → |
“A Houston-based Private Equity Firm providing access to opportunistic investments in Real Estate, Energy and other alternative asset classes.” Recorded description excerpt · September 20, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 125 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Private investment companies: dataset insights
September 20, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
125 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 125 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 20, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Private investment companies by metro in the United States
- Private investment companies in New York786
- Private investment companies in Chicago222
- Private investment companies in Los Angeles173
- Private investment companies in Dallas164
- Private investment companies in San Francisco145
- Private investment companies in Boston117
- Private investment companies in Miami113
- Private investment companies in Austin111
- Private investment companies in Atlanta89
- Private investment companies in Denver63
- Private investment companies in Charlotte53
- Private investment companies in Washington46
- Private investment companies in Tampa39
- Private investment companies in San Diego38
- Private investment companies in Newport Beach37
- Private investment companies in Minneapolis35
- Private investment companies in Philadelphia34
- Private investment companies in Cleveland30
- Private investment companies in Birmingham29
- Private investment companies in Nashville28
- Private investment companies in Stamford27
- Private investment companies in Beverly Hills26
- Private investment companies in Scottsdale26
- Private investment companies in Seattle25
Questions about this company list
What does Exact match mean for private investment companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many private investment companies did RevenueBase find based in Houston, United States?
The saved snapshot records 125 matching company records, 1,226 tracked contacts and 600 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 20, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Private investment companies by geography
- Private investment companies based in Calgary, Canada
- Private investment companies based in Montreal, Canada
- Private investment companies based in Toronto, Canada
- Private investment companies based in Vancouver, Canada
- Private investment companies based in Atlanta, United States
- Private investment companies based in Austin, United States
- Private investment companies based in Beverly Hills, United States
- Private investment companies based in Birmingham, United States
- Private investment companies based in Boston, United States
- Private investment companies based in Charlotte, United States
- Private investment companies based in Chicago, United States
- Private investment companies based in Cleveland, United States
Cite this list
RevenueBase Data Team. Top 25 private investment companies based in Houston, United States. Snapshot: September 20, 2026. https://revenuebase.ai/companies/private-investment-companies/united-states/houston.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Private investment companies based in Calgary, Canada
- Private investment companies based in Montreal, Canada
- Private investment companies based in Toronto, Canada
- Private investment companies based in Vancouver, Canada
- Private investment companies based in Atlanta, United States
- Private investment companies based in Austin, United States