Company lists · Data refreshed September 2026

Top 25 Infrastructure private equity firms based in the United States

RevenueBase identified 2,958 company matches for infrastructure private equity firms associated with the United States as of September 2026 and tracks 69,328 professional contacts across them, including 33,224 with verified work emails. New York is the largest hub.

This list covers company matches for infrastructure private equity 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 28, 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 28, 2026 How this list was built
2,958Companies
69,328Contacts tracked
33,224Verified emails
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The 25 largest infrastructure private equity firms based in the United States

Ranked by team size
Top 25 of 2,958 company matches for infrastructure private equity firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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 28, 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 28, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
3Exact matchNew York, NY, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
4Exact matchWashington, DC, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
5Exact matchBoston, MA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
6Exact matchMiami, FL, United StatesHQ recorded Sep 28, 2026501-1,0001,301 contacts →

Exact match

“H.I.G.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026501-1,0001,290 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9Exact matchLos Angeles, CA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
10Exact matchBoston, MA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
11Exact matchBoston, MA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
13Exact matchEl Paso, TX, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
14Exact matchBoston, MA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026201-500447 contacts →

Exact match

“The Riverside Company is a global investment firm focused on being one of the leading private capital options for business owners and employees at the smaller end of the middle…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchLos Angeles, CA, United StatesHQ recorded Sep 28, 2026201-500376 contacts →

Exact match

“Kayne Anderson, founded in 1984, is a leading alternative investment management firm focused on real estate, credit, infrastructure, and energy.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026201-500368 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchChicago, IL, United StatesHQ recorded Sep 28, 2026201-500367 contacts →

Exact match

“Adams Street Partners is a global investment firm managing a comprehensive suite of private markets investment solutions.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchDallas, TX, United StatesHQ recorded Sep 28, 2026501-1,000362 contacts →

Exact match

“Scout Energy Partners Scout is a private investment firm, acquiring and operating energy assets for institutional partners.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchMiami, FL, United StatesHQ recorded Sep 28, 2026201-500361 contacts →

Exact match

“I Squared Capital is a leading independent global infrastructure investor dedicated to the mid-market, managing more than $60 billion in assets.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026201-500339 contacts →

Exact match

“Stonepeak is a leading alternative investment firm specializing in infrastructure and real assets with approximately $93 billion of assets under management.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Sep 28, 2026n/a337 contacts →

Exact match

“W Capital Partners is a private equity firm that provides secondary liquidity to shareholders in private businesses and growth capital for those companies.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchChicago, IL, United StatesHQ recorded Sep 28, 202651-200327 contacts →

Exact match

“Shore Capital, a Chicago-based private equity firm with an office in Nashville, is an investor in lower-middle market companies in the Healthcare, Food and Beverage, Business…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24Exact matchChicago, IL, United StatesHQ recorded Sep 28, 2026201-500309 contacts →

Exact match

“Thoma Bravo is the world’s largest software-focused investment firm, with more than $172 billion in assets under management as of March 31, 2026.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchSanta Monica, CA, United StatesHQ recorded Sep 28, 202651-200266 contacts →

Exact match

“Clearlake Capital is a leading global alternative asset manager founded in 2006 with over $185 billion of assets under management.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 2,958 infrastructure private equity firms based in the United States

See the full list, filter by size, metro and specialty, and access 33,224 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Infrastructure private equity firms based in the United States at a glance

As of Sep 28, 2026
47.9%Verified-email coverage
23.4Average contacts per company
1-10Median size (employees)
16.1%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
1,742
11-50
936
51-200
194
201-500
37
501-1,000
22
1,001-5,000
20
5,001-10,000
1
10001+
3

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 2,958 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 “infrastructure private equity 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 33,224 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 28, 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.

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

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

RevenueBase identified 2,958 company matches for infrastructure private equity 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 infrastructure private equity firms?

New York leads with 475 company records, followed by Chicago (161) and Dallas (124).

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 33,224 professional contacts with verified work emails tracked across these 2,958 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 28, 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.