Company lists · Data refreshed September 2026

Top 25 Private equity software buyout firms based in the United States

Name: Private equity software buyout 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 29, 2026 1,391 companies tracked

RevenueBase identified 1,391 private equity software buyout firms headquartered in the United States as of September 2026 and tracks 25,002 professional contacts across them, including 13,078 with verified work emails. New York is the largest hub.

This list covers private equity software buyout 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 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

1,391Companies

25,002Contacts tracked

13,078Verified emails

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

Ranked by team size

Top 25 of 1,391 private equity software buyout firms based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to private equity software buyout 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	H.I.G. Capital	Indirect evidence	Miami, FL, United StatesHQ checked Sep 29, 2026	501-1,000	1,301 contacts →
	Indirect evidence “H.I.G.” Source: RevenueBase Database · checked Sep 29, 2026
2	TA Associates	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 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 29, 2026
3	Vista Equity Partners	Strong evidence	Austin, TX, United StatesHQ checked Sep 29, 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 29, 2026
4	Silver Lake	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 29, 2026	201-500	568 contacts →
	Indirect evidence “Silver Lake is a global technology investment firm, with approximately $114 billion in combined assets under management and committed capital and a team of professionals based in…” Source: RevenueBase Database · checked Sep 29, 2026
5	PSG	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 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 29, 2026
6	The Riverside Company	Partial evidence	New York City, NY, United StatesHQ checked Sep 29, 2026	201-500	447 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
7	W Capital Partners	Strong evidence	New York, NY, United StatesHQ checked Sep 29, 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 29, 2026
8	Thoma Bravo	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 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 29, 2026
9	York IE	Partial evidence	Manchester, NH, United StatesHQ checked Sep 29, 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 29, 2026
10	Alpine Investors	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 29, 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 29, 2026
11	Clearlake Capital Group	Indirect evidence	Santa Monica, CA, United StatesHQ checked Sep 29, 2026	51-200	266 contacts →
	Indirect evidence “Clearlake Capital is a leading global alternative asset manager founded in 2006 with over $185 billion of assets under management.” Source: RevenueBase Database · checked Sep 29, 2026
12	Banyan Software	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 29, 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 29, 2026
13	Gtcr LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 29, 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 29, 2026
14	Charlesbank Capital Partners	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	51-200	236 contacts →
	Partial evidence “Based in Boston and New York City, Charlesbank is a leading middle-market private investment firm with $21.5 billion in assets under management as of 3/31/2026.” Source: RevenueBase Database · checked Sep 29, 2026
15	Accel-Kkr	Indirect evidence	Menlo Park, CA, United StatesHQ checked Sep 29, 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 29, 2026
16	Francisco Partners	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 29, 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 29, 2026
17	Norwest	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 29, 2026	51-200	212 contacts →
	Partial evidence “Norwest is a leading venture and growth equity investment firm that works side-by-side with the world’s top entrepreneurs, empowering them throughout their personal journey of…” Source: RevenueBase Database · checked Sep 29, 2026
18	Gryphon Investors	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	51-200	211 contacts →
	Partial evidence “Gryphon Investors is a leading middle-market private investment firm focused on building and growing profitable, market-leading companies in the Business Services, Consumer…” Source: RevenueBase Database · checked Sep 29, 2026
19	Anthos Capital	Indirect evidence	Santa Monica, CA, United StatesHQ checked Sep 29, 2026	n/a	174 contacts →
	Indirect evidence “Anthos, founded in 2007, invests in emerging consumer and technology companies that drive innovation and shape the future.” Source: RevenueBase Database · checked Sep 29, 2026
20	TCV	Partial evidence	Menlo Park, CA, United StatesHQ checked Sep 29, 2026	51-200	169 contacts →
	Partial evidence “For over thirty years, TCV has partnered with global, category-defining, technology companies as a leading growth equity investor.” Source: RevenueBase Database · checked Sep 29, 2026
21	LLR Partners	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 29, 2026	51-200	168 contacts →
	Strong evidence “LLR Partners is a lower middle market private equity firm focused on investing in software and tech-enabled companies within the knowledge economy.” Source: RevenueBase Database · checked Sep 29, 2026
22	Veritas Capital	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	166 contacts →
	Indirect evidence “Veritas Capital is a longstanding technology investor with over $50+ billion of assets under management and a focus on companies operating at the intersection of technology and…” Source: RevenueBase Database · checked Sep 29, 2026
23	JMI Equity	Strong evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	51-200	152 contacts →
	Strong evidence “Founded in 1992, JMI Equity has focused on investing in exceptional software and AI-driven companies from scaling stages through later growth.” Source: RevenueBase Database · checked Sep 29, 2026
24	THL Partners	Strong evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	51-200	148 contacts →
	Strong evidence “THL Partners is a Boston-based private equity firm investing in middle-market growth companies in three industry groups: Financial Technology & Services, Healthcare, and…” Source: RevenueBase Database · checked Sep 29, 2026
25	Graham Partners	Partial evidence	Newtown Square, PA, United StatesHQ checked Sep 29, 2026	51-200	147 contacts →
	Partial evidence “Graham Partners is a private investment firm focused on investing in technology-driven companies that are spurring innovation in advanced manufacturing, resulting in product…” Source: RevenueBase Database · checked Sep 29, 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: private equity software buyout 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 private equity software buyout firms.
Partial evidence: Its own public description names part of private equity software buyout firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name private equity software buyout 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 1,391 private equity software buyout firms based in the United States

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Private equity software buyout firms based in the United States at a glance

As of Sep 29, 2026

52.3%Verified-email coverage

18.0Average contacts per company

1-10Median size (employees)

16.2%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

854

11-50

403

51-200

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 1,391 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among private equity software buyout 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 “private equity software buyout firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names private equity software buyout firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among private equity software buyout 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, 13,078 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Private equity software buyout 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 private equity software buyout firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 1,391 private equity software buyout 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?

H.I.G. Capital, headquartered in Miami, tops this list with the largest team on record.

Which city has the most private equity software buyout firms?

New York leads with 226 headquartered companies, followed by San Francisco (75) and Chicago (69).

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 13,078 verified decision-maker contacts tracked across these 1,391 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.