Company lists · Data refreshed September 2026

Top 25 Infrastructure software private equity firms based in the United States

Name: Infrastructure software private equity firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,849 companies tracked

RevenueBase identified 1,849 infrastructure software private equity firms headquartered in the United States as of September 2026 and tracks 41,449 professional contacts across them, including 22,552 with verified work emails. New York is the largest hub.

This list covers infrastructure software private equity firms headquartered in the 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 28, 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 28, 2026 86% judged on-target in blind review

1,849Companies

41,449Contacts tracked

22,552Verified emails

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The 25 largest infrastructure software private equity firms based in the United States

Ranked by team size

Top 25 of 1,849 infrastructure software private equity firms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure software private equity 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Brookfield	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	3,915 contacts →
	Indirect evidence “We are a leading global investment firm that invests as long-term owners on behalf of institutions and individuals worldwide.” Source: RevenueBase Database · checked Sep 28, 2026
2	CARTA	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,966 contacts →
	Partial evidence “Carta powers interconnectivity in private markets, uniting data, people, and workflows in one connected system.” Source: RevenueBase Database · checked Sep 28, 2026
3	H.I.G. Capital	Indirect evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	501-1,000	1,301 contacts →
	Indirect evidence “H.I.G.” Source: RevenueBase Database · checked Sep 28, 2026
4	Advent	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	501-1,000	1,025 contacts →
	Strong evidence “Advent is a leading global private equity investor committed to working in partnership with management teams, entrepreneurs, and founders to help transform businesses.” Source: RevenueBase Database · checked Sep 28, 2026
5	TA Associates	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	201-500	881 contacts →
	Strong evidence “TA is a leading global private equity firm focused on scaling growth in profitable companies.” Source: RevenueBase Database · checked Sep 28, 2026
6	Vista Equity Partners	Strong evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	501-1,000	839 contacts →
	Strong evidence “Vista Equity Partners (Vista) is a leading global technology investor specializing in software.” Source: RevenueBase Database · checked Sep 28, 2026
7	General Atlantic	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	820 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
8	Insight Partners	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	623 contacts →
	Partial evidence “Insight Partners is a global software investor partnering with high-growth technology, software, and Internet startup and ScaleUp companies that are driving transformative change…” Source: RevenueBase Database · checked Sep 28, 2026
9	Allvue Systems	Partial evidence	Coral Gables, FL, United StatesHQ checked Sep 28, 2026	501-1,000	616 contacts →
	Partial evidence “Allvue Systems is a recognized leader of cloud-based technology, data, and services solutions for alternative investment managers in the private capital markets.” Source: RevenueBase Database · checked Sep 28, 2026
10	PSG	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	513 contacts →
	Strong evidence “PSG is a growth equity firm that partners with software and technology-enabled services companies to help them navigate transformational growth, capitalize on strategic…” Source: RevenueBase Database · checked Sep 28, 2026
11	I Squared Capital	Partial evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	201-500	361 contacts →
	Partial evidence “I Squared Capital is a leading independent global infrastructure investor dedicated to the mid-market, managing more than $60 billion in assets.” Source: RevenueBase Database · checked Sep 28, 2026
12	Stonepeak	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	339 contacts →
	Partial evidence “Stonepeak is a leading alternative investment firm specializing in infrastructure and real assets with approximately $93 billion of assets under management.” Source: RevenueBase Database · checked Sep 28, 2026
13	W Capital Partners	Strong evidence	New York, NY, United StatesHQ checked Sep 28, 2026	n/a	337 contacts →
	Strong evidence “W Capital Partners is a private equity firm that provides secondary liquidity to shareholders in private businesses and growth capital for those companies.” Source: RevenueBase Database · checked Sep 28, 2026
14	Thoma Bravo	Partial evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	201-500	309 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026
15	York IE	Partial evidence	Manchester, NH, United StatesHQ checked Sep 28, 2026	201-500	292 contacts →
	Partial evidence “York IE® is an investment and operating firm that combines a family of funds with a hands-on operating platform to build and back software companies.” Source: RevenueBase Database · checked Sep 28, 2026
16	Alpine Investors	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	51-200	278 contacts →
	Strong evidence “Alpine Investors is a people-driven private equity firm that invests in software and services businesses.” Source: RevenueBase Database · checked Sep 28, 2026
17	Berkshire Partners	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	201-500	255 contacts →
	Strong evidence “Berkshire Partners is a 100% employee-owned, multi-sector specialist investor in private and public equity, with a focus on North American-based, middle-market companies.” Source: RevenueBase Database · checked Sep 28, 2026
18	Banyan Software	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	1,001-5,000	245 contacts →
	Partial evidence “Banyan Software provides the best permanent home for successful enterprise software businesses, their employees, and customers to preserve the legacy of founders, while helping…” Source: RevenueBase Database · checked Sep 28, 2026
19	Realterm	Strong evidence	Annapolis, MD, United StatesHQ checked Sep 28, 2026	201-500	242 contacts →
	Strong evidence “Realterm is a private equity sponsor focused on investments in real assets for the transportation industry.” Source: RevenueBase Database · checked Sep 28, 2026
20	Coatue Management	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	239 contacts →
	Partial evidence “Building on our heritage in public markets investing, Coatue’s lifecycle investment platform has expanded across public and private markets over the past 25+ years.” Source: RevenueBase Database · checked Sep 28, 2026
21	Gtcr LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 28, 2026	51-200	237 contacts →
	Strong evidence “Founded in 1980, GTCR is a leading private equity firm that invests behind The Leaders Strategy™ – finding and partnering with management leaders in core domains to identify…” Source: RevenueBase Database · checked Sep 28, 2026
22	Accel-Kkr	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 28, 2026	51-200	236 contacts →
	Indirect evidence “Accel-KKR is a technology-focused investment firm with $23 billion in capital commitments.” Source: RevenueBase Database · checked Sep 28, 2026
23	Hellman & Friedman	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	51-200	220 contacts →
	Strong evidence “Founded in 1984, Hellman & Friedman (H&F) is one of the most experienced private equity investment firms operating today.” Source: RevenueBase Database · checked Sep 28, 2026
24	Francisco Partners	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 28, 2026	51-200	215 contacts →
	Indirect evidence “Francisco Partners is a leading global investment firm that specializes in partnering with technology and technology-enabled businesses.” Source: RevenueBase Database · checked Sep 28, 2026
25	Battery Ventures	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	211 contacts →
	Strong evidence “Battery invests in potentially cutting-edge, category-defining businesses in markets including application software, IT infrastructure technologies, consumer-internet and mobile…” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: infrastructure software private equity firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names infrastructure software private equity firms.
Partial evidence: Its own public description names part of infrastructure software private equity firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure software private equity firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,849 infrastructure software private equity firms based in the United States

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

As of Sep 28, 2026

54.4%Verified-email coverage

22.4Average contacts per company

1-10Median size (employees)

15.1%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

1,079

11-50

584

51-200

129

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,849 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 infrastructure software private equity 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 the United States whose own description of what they do matches “infrastructure software private equity 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 infrastructure software private equity 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 infrastructure software private equity firms, and records with no verified work email. Companies headquartered outside United States 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, 22,552 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 28, 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.

Infrastructure software private equity firms by metro

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

RevenueBase identified 1,849 infrastructure software private equity firms headquartered in the 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?

Brookfield, headquartered in New York, tops this list with the largest team on record.

Which city has the most infrastructure software private equity firms?

New York leads with 280 headquartered companies, followed by San Francisco (96) and Chicago (93).

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 22,552 verified decision-maker contacts tracked across these 1,849 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 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 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.