Company lists · Data refreshed September 2026

Top 22 Platform companies in private equity based in Newport Beach, United States

Name: Platform companies in private equity based in Newport Beach, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 39 companies tracked

RevenueBase identified 39 platform companies in private equity headquartered in Newport Beach, United States as of September 2026 and tracks 277 professional contacts across them, including 135 with verified work emails. New York is the largest hub.

This list covers platform companies in private equity headquartered in Newport Beach, 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

39Companies

277Contacts tracked

135Verified emails

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The 22 largest platform companies in private equity based in Newport Beach, United States

Ranked by team size

Top 22 of 39 platform companies in private equity based in Newport Beach, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names platform companies in private equity: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Mark IV CapitalStrong evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	51-200	79
	“Mark IV Capital is a privately held investment platform that specializes in commercial real estate and private equity.” Source: company website · checked Sep 5, 2026
2	Sway CapitalIndirect evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	51-200	32
	“At Sway Capital, we're transforming capital into catalysts and investing in tomorrow's breakthroughs.” Source: company website · checked Sep 5, 2026
3	L Squared Capital PartnersStrong evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	11-50	16
	“L Squared Capital Partners is a private equity investment firm headquartered in Newport Beach, CA, with approximately $5.3 billion of cumulative capital commitments that seeks to…” Source: company website · checked Sep 5, 2026
4	Rx3 Growth PartnersPartial evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	16
	“RX3 Growth Partners is an institutional growth equity firm focused on the consumer sector.” Source: company website · checked Sep 5, 2026
5	Greenfield SolomonStrong evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	10
	“Greenfield Solomon is a private equity firm that specializes in providing alternative financing for small-to-midsize companies and real estate syndications.” Source: company website · checked Sep 5, 2026
6	Ault & Company, INCStrong evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	11-50	9
	“Ault & Company is a private holding company located in Orange County, California with a focus on Private Equity and Venture Capital.” Source: company website · checked Sep 5, 2026
7	Intrust Property GroupPartial evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	6
	“InTrust is an owner-driven diversified real estate investment company whose Principals have an established track record in development and real estate debt and equity Investments.” Source: company website · checked Sep 5, 2026
8	Lotus DomaineStrong evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	11-50	6
	“Lotus Domaine is a private equity fund that builds wealth for its investors by acquiring, transforming, and exiting high-potential, small to mid-size technology companies that…” Source: company website · checked Sep 5, 2026
9	Systm BrandsIndirect evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	5
	“SYSTM Brands is a team of proven executives, experienced operators and passionate founders who are dedicated to growing brands that deliver truly impactful and innovative products.” Source: company website · checked Sep 5, 2026
10	Solis Capital Partners LLCStrong evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	5
	“Solis Capital Partners is a private equity firm based in Southern California.” Source: company website · checked Sep 5, 2026
11	Riviera Capital PartnersStrong evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	5
	“Riviera Capital is a leading private equity firm investing in micro-cap companies.” Source: company website · checked Sep 5, 2026
12	ValkyrieStrong evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	4
	“Valkyrie Brands, LLC (‘Valkyrie’), Private Equity.” Source: company website · checked Sep 5, 2026
13	Eagle Four PartnersPartial evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	201-500	3
	“Eagle Four Partners has participated as the lead equity investor in numerous real estate transactions throughout the United States, including most notably the acquisition of the…” Source: company website · checked Sep 5, 2026
14	Aero-Mark, LLCPartial evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	3
	“Aero-mark, LLC is a private investment firm with over 35 years of experience in the acquisition, growth, and improvement of companies.” Source: company website · checked Sep 5, 2026
15	Emerald Creek Group, LLCStrong evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	3
	“Emerald Creek Group, LLC is a Southern California based private equity firm focused on real estate with the primary objective of building an investment portfolio focused on…” Source: company website · checked Sep 5, 2026
16	XMF CapitalPartial evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	3
	“XMF Capital is a global private investment firm.” Source: company website · checked Sep 5, 2026
17	Five Crowns CapitalPartial evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	3
	“Founded in January 2003, Five Crowns Capital is a private investment firm that sponsors buyouts of small and middle market companies.” Source: company website · checked Sep 5, 2026
18	Axle Point CapitalIndirect evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	2
	“Axle Point Capital leverages its extensive experience in the lower middle market business services and diversified industrials sectors to invest in and partner with talented…” Source: company website · checked Sep 5, 2026
19	Groundswell Real EstateStrong evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	51-200	1
	“A new Commercial Real Estate equity investment platform, Groundswell Real Estate Investments, LLC is an affiliate of Columnar West Holdings, LLC and Traylor Capital.” Source: company website · checked Sep 5, 2026
20	Labrador CapitalPartial evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	1
	“Labrador Capital is a private holding company investing in lower middle market companies.” Source: company website · checked Sep 5, 2026
21	Capy CapitalIndirect evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	1
	“We buy and grow family owned businesses.” Source: company website · checked Sep 5, 2026
22	TBG EquityPartial evidence	Newport Beach, CA, United StatesHQ checked Sep 5, 2026	1-10	1
	“TBG Equity was founded by a team that partners with current business owners to invest and grow companies.” Source: company website · checked Sep 5, 2026

Showing 22 of 39 platform companies in private equity based in Newport Beach, United States

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Platform companies in private equity based in Newport Beach, United States at a glance

As of Sep 5, 2026

1-10Median size (employees)

New YorkLargest hub · 800 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Newport Beach, over 39 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 platform companies in private equity, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Newport Beach, United States whose own description of what they do matches “platform companies in private equity”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among platform companies in private equity, and records with no verified work email. Companies headquartered outside Newport Beach 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 an evidence 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, 135 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 5, 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.

Platform companies in private equity by metro in the United States

Frequently asked

How many platform companies in private equity are there based in Newport Beach, United States?

RevenueBase identified 39 platform companies in private equity headquartered in Newport Beach, 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?

Mark IV Capital, headquartered in Newport Beach, tops this list with the largest team on record.

Which city has the most platform companies in private equity?

New York leads with 800 headquartered companies, followed by Chicago (255) and Dallas (227).

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 135 verified decision-maker contacts tracked across these 39 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 5, 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.