Company lists · Data refreshed September 2026

Top 25 Private equity infrastructure firms based in the United States

RevenueBase identified 5,106 company matches for private equity infrastructure firms associated with the United States as of September 2026 and tracks 113,714 professional contacts across them, including 53,460 with verified work emails. New York is the largest hub.

This list covers company matches for private equity infrastructure firms associated with the 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 29, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 29, 2026 How this list was built
5,106Companies
113,714Contacts tracked
53,460Verified emails
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The 25 largest private equity infrastructure firms based in the United States

Ranked by team size
Top 25 of 5,106 company matches for private equity infrastructure firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNorwalk, CT, United StatesHQ recorded Sep 29, 20265,001-10,0007,253 contacts →

Exact match

“Every year, the infrastructure that powers our homes, transports our products, heals our loved ones, and keeps our societies moving forward needs a trillion dollars more…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchLos Angeles, CA, United StatesHQ recorded Sep 29, 20261,001-5,0003,975 contacts →

Exact match

“Ares Management Corporation (NYSE: ARES) is a leading global alternative investment manager offering clients complementary primary and secondary investment solutions across the…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchNew York, NY, United StatesHQ recorded Sep 29, 20261,001-5,0003,915 contacts →

Exact match

“We are a leading global investment firm that invests as long-term owners on behalf of institutions and individuals worldwide.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Sep 29, 20261,001-5,0002,940 contacts →

Exact match

“Nuveen is a global investment leader, managing public and private assets for clients around the world and on behalf of TIAA, our parent company and one of the world’s largest…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchWashington, DC, United StatesHQ recorded Sep 29, 20261,001-5,0002,515 contacts →

Exact match

“Carlyle (NASDAQ: CG) is a global investment firm with deep industry expertise that deploys private capital across three business segments: Global Private Equity, Global Credit…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchBoston, MA, United StatesHQ recorded Sep 29, 20261,001-5,0002,068 contacts →

Exact match

“Founded in 1984, Bain Capital is one of the world’s leading private investment firms.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchBoston, MA, United StatesHQ recorded Sep 29, 20261,001-5,0001,353 contacts →

Exact match

“HarbourVest is an independent, global private markets firm with over 43 years of experience and $161 billion assets under management as of December 31, 2025.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchMiami, FL, United StatesHQ recorded Sep 29, 2026501-1,0001,301 contacts →

Exact match

“H.I.G.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Sep 29, 2026501-1,0001,295 contacts →

Exact match

“Operating across every dimension of real assets investments, we see more so you can achieve more.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchNew York, NY, United StatesHQ recorded Sep 29, 2026501-1,0001,290 contacts →

Exact match

“Warburg Pincus LLC is the pioneer of global growth investing.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchNew York, NY, United StatesHQ recorded Sep 29, 20261,001-5,0001,288 contacts →

Exact match

“Fortress Investment Group LLC is a leading, highly diversified global investment manager.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Sep 29, 20261,001-5,0001,126 contacts →

Exact match

“Golub Capital is a market-leading, award-winning direct lender and experienced private credit manager.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchLos Angeles, CA, United StatesHQ recorded Sep 29, 2026501-1,0001,090 contacts →

Exact match

“CIM is a community-focused real estate and infrastructure owner, operator, lender and developer.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchBoston, MA, United StatesHQ recorded Sep 29, 2026501-1,0001,025 contacts →

Exact match

“Advent is a leading global private equity investor committed to working in partnership with management teams, entrepreneurs, and founders to help transform businesses.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchSan Francisco, CA, United StatesHQ recorded Sep 29, 20261,001-5,000959 contacts →

Exact match

“Standish is the leading independent provider of fund administration and related services to the private capital industry.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchBoston, MA, United StatesHQ recorded Sep 29, 2026201-500881 contacts →

Exact match

“TA is a leading global private equity firm focused on scaling growth in profitable companies.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Sep 29, 2026501-1,000820 contacts →

Exact match

“General Atlantic is a leading global investor with more than four and a half decades of experience providing capital and strategic support to over 830 companies throughout its…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United StatesHQ recorded Sep 29, 2026201-500679 contacts →

Exact match

“Investcorp is a global investment manager specializing in alternative investments across four asset classes: Private Equity (mid-market buyouts, growth investments, and GP…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchStamford, CT, United StatesHQ recorded Sep 29, 2026201-500592 contacts →

Exact match

“Castleton Commodities International is at the cutting edge of energy trading and infrastructure asset investing backed by the best minds in the industry and powered by deep…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchEl Paso, TX, United StatesHQ recorded Sep 29, 20261,001-5,000543 contacts →

Exact match

“Hunt Companies is a family-owned principal investment firm founded in 1947, based in El Paso, TX, with interests in the real estate, infrastructure, and financial services sectors.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchBoston, MA, United StatesHQ recorded Sep 29, 202651-200513 contacts →

Exact match

“PSG is a growth equity firm that partners with software and technology-enabled services companies to help them navigate transformational growth, capitalize on strategic…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchWellesley Hills, MA, United StatesHQ recorded Sep 29, 2026501-1,000510 contacts →

Exact match

“For over ten years, SLC Management has helped our clients meet their long-term income and capital appreciation objectives by creating value through our disciplined and diversified…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
23Exact matchNew York, NY, United StatesHQ recorded Sep 29, 2026201-500478 contacts →

Exact match

“Founded in 1990, LS Power is a premier development, investment, and operating company focused on the North American power and energy infrastructure sector, with leading platforms…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
24Exact matchNew York, NY, United StatesHQ recorded Sep 29, 2026201-500470 contacts →

Exact match

“Cohen & Steers is a global investment manager specializing in liquid real assets, including real estate securities, listed infrastructure, and natural resource equities, as well…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchBoston, MA, United StatesHQ recorded Sep 29, 202651-200465 contacts →

Exact match

“Summit Partners is a global alternative investment firm with capital dedicated to growth equity, fixed income, and public equity opportunities.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 5,106 private equity infrastructure firms based in the United States

See the full list, filter by size, metro and specialty, and access 53,460 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Private equity infrastructure firms based in the United States at a glance

As of Sep 29, 2026
47.0%Verified-email coverage
22.3Average contacts per company
1-10Median size (employees)
16.5%Largest-city concentration · New York
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
3,098
11-50
1,534
51-200
316
201-500
75
501-1,000
34
1,001-5,000
38
5,001-10,000
1
10001+
5

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 5,106 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 the United States whose business descriptions match “private equity infrastructure firms” 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 53,460 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 29, 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 equity infrastructure firms by metro

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 equity infrastructure firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many private equity infrastructure firms are there based in the United States?

RevenueBase identified 5,106 company matches for private equity infrastructure firms associated with the 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?

GE Capital tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most private equity infrastructure firms?

New York leads with 841 company records, followed by Chicago (252) and Dallas (202).

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 53,460 professional contacts with verified work emails tracked across these 5,106 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 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 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.