Company lists · Data refreshed September 2026

Top 25 Business portfolio companies based in the United States

Name: Business portfolio companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,712 companies tracked

RevenueBase identified 1,712 business portfolio companies headquartered in the United States as of September 2026 and tracks 19,255 professional contacts across them, including 5,604 with verified work emails. New York is the largest hub.

This list covers business portfolio companies 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 19, 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 19, 2026 86% judged on-target in blind review

1,712Companies

19,255Contacts tracked

5,604Verified emails

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The 25 largest business portfolio companies based in the United States

Ranked by team size

Top 25 of 1,712 business portfolio companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to business portfolio companies: 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	IAC	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	5,001-10,000	1,615 contacts →
	Indirect evidence “IAC builds companies.” Source: RevenueBase Database · checked Sep 19, 2026
2	Alphabet INC	Indirect evidence	Mountain View, CA, United StatesHQ checked Sep 19, 2026	n/a	1,275 contacts →
	Indirect evidence “Alphabet is a collection of companies, including Google, Verily Life Sciences, GV, Calico, and X.” Source: RevenueBase Database · checked Sep 19, 2026
3	TA Associates	Indirect evidence	Boston, MA, United StatesHQ checked Sep 19, 2026	201-500	881 contacts →
	Indirect evidence “TA is a leading global private equity firm focused on scaling growth in profitable companies.” Source: RevenueBase Database · checked Sep 19, 2026
4	Platinum Equity	Strong evidence	Beverly Hills, CA, United StatesHQ checked Sep 19, 2026	201-500	577 contacts →
	Strong evidence “Founded in 1995 by Tom Gores, Platinum Equity is a global investment firm with approximately ~$48 billion of assets under management and a portfolio of approximately 60 operating…” Source: RevenueBase Database · checked Sep 19, 2026
5	TRG	Indirect evidence	Washington, United StatesHQ checked Sep 19, 2026	n/a	536 contacts →
	Indirect evidence “We are an investment holding company specializing in the business process outsourcing and technology sectors.” Source: RevenueBase Database · checked Sep 19, 2026
6	The Friedkin Group	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	10001+	357 contacts →
	Indirect evidence “The Friedkin Group is comprised of a consortium of automotive, hospitality, entertainment, sports and adventure companies.” Source: RevenueBase Database · checked Sep 19, 2026
7	Loews Corporation	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	293 contacts →
	Indirect evidence “Loews Corporation is a diversified company with a mix of public and private subsidiaries: CNA Financial Corporation (NYSE: CNA), Boardwalk Pipelines, Loews Hotels & Co.” Source: RevenueBase Database · checked Sep 19, 2026
8	York IE	Indirect evidence	Manchester, NH, United StatesHQ checked Sep 19, 2026	201-500	292 contacts →
	Indirect 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 19, 2026
9	Common Sail Investment Group	Indirect evidence	Brighton, MI, United StatesHQ checked Sep 19, 2026	501-1,000	260 contacts →
	Indirect evidence “Common Sail Investment Group (CSIG) is a privately owned and operated holding company based in Brighton, Michigan.” Source: RevenueBase Database · checked Sep 19, 2026
10	Caprae Capital Partners	Indirect evidence	Glendale, United StatesHQ checked Sep 19, 2026	n/a	248 contacts →
	Indirect evidence “Caprae Capital Partners is a family office investment platform that is not a traditional PE fund - we are a tech-enabled business built to change the lower middle market PE space.” Source: RevenueBase Database · checked Sep 19, 2026
11	Gryphon Investors	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	51-200	211 contacts →
	Indirect 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 19, 2026
12	The Heico Companies LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	5,001-10,000	202 contacts →
	Indirect evidence “Heico has a long history of success.” Source: RevenueBase Database · checked Sep 19, 2026
13	Luke Family Of Brands	Indirect evidence	Hobart, IN, United StatesHQ checked Sep 19, 2026	501-1,000	196 contacts →
	Indirect evidence “Luke Family of Brands is a company built on positive attitudes, with a legacy forged by great work habits.” Source: RevenueBase Database · checked Sep 19, 2026
14	Veritas Capital	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 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 19, 2026
15	Icbd Holdings	Indirect evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 19, 2026	51-200	162 contacts →
	Indirect evidence “ICBD Holdings is the parent company to a seemingly disparate set of companies.” Source: RevenueBase Database · checked Sep 19, 2026
16	Evergreen	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	n/a	154 contacts →
	Indirect evidence “Evergreen is a private-equity backed holding company focused on acquiring services and software companies.” Source: RevenueBase Database · checked Sep 19, 2026
17	Sunroad Enterprises	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	143 contacts →
	Indirect evidence “Founded in 1977, Sunroad Enterprises is a diversified holding company based in San Diego.” Source: RevenueBase Database · checked Sep 19, 2026
18	Advance	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	10001+	135 contacts →
	Indirect evidence “Founded in 1922, Advance is a private, family-owned company that operates and invests in a broad range of media, communications, technology and education businesses globally.” Source: RevenueBase Database · checked Sep 19, 2026
19	Leon Capital Group	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 19, 2026	51-200	128 contacts →
	Indirect evidence “Leon Capital Group (LCG) is a diversified holding company for a privately-owned group of entities based in Dallas, Texas.” Source: RevenueBase Database · checked Sep 19, 2026
20	Welsh, Carson, Anderson & Stowe	Indirect evidence	NY, United StatesHQ checked Sep 19, 2026	51-200	123 contacts →
	Indirect evidence “WCAS is a leading U.S.” Source: RevenueBase Database · checked Sep 19, 2026
21	Steel Partners Holdings	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	5,001-10,000	120 contacts →
	Indirect evidence “Steel Partners Holdings L.P.” Source: RevenueBase Database · checked Sep 19, 2026
22	Advanced Solutions	Indirect evidence	Louisville, KY, United StatesHQ checked Sep 19, 2026	51-200	115 contacts →
	Indirect evidence “For more than 30 years, Advanced Solutions, a privately held company, focused on long-term investments in technology companies that deliver profound and positive engineering…” Source: RevenueBase Database · checked Sep 19, 2026
23	Access Industries	Indirect evidence	New York, United StatesHQ checked Sep 19, 2026	51-200	108 contacts →
	Indirect evidence “Access Industries is a privately-held investment group with long-term holdings worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
24	The Gazette Company	Indirect evidence	Cedar Rapids, IA, United StatesHQ checked Sep 19, 2026	11-50	100 contacts →
	Indirect evidence “The Gazette Company (Legacy)” Source: RevenueBase Database · checked Sep 19, 2026
25	ZT Corporate	Strong evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	99 contacts →
	Strong evidence “Established in 1997, ZT Corporate is a private investment firm with a portfolio in healthcare services and automotive dealerships.” Source: RevenueBase Database · checked Sep 19, 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: business portfolio companies. 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 business portfolio companies.
Partial evidence: Its own public description names part of business portfolio companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business portfolio companies. 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 1,712 business portfolio companies based in the United States

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Business portfolio companies based in the United States at a glance

As of Sep 19, 2026

29.1%Verified-email coverage

11.2Average contacts per company

1-10Median size (employees)

8.9%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

979

11-50

408

51-200

170

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 1,712 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 business portfolio companies, 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 “business portfolio companies”. 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 business portfolio companies), 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 business portfolio companies, 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, 5,604 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 19, 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.

Business portfolio companies 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 business portfolio companies, 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 business portfolio companies are there based in the United States?

RevenueBase identified 1,712 business portfolio companies 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?

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

Which city has the most business portfolio companies?

New York leads with 153 headquartered companies, followed by Los Angeles (54) and Chicago (50).

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 5,604 verified decision-maker contacts tracked across these 1,712 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 19, 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.