Company lists · Data refreshed September 2026

Top 25 Portfolio company consulting firms based in New York, United States

Name: Portfolio company consulting firms based in New York, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 801 companies tracked

RevenueBase identified 801 portfolio company consulting firms headquartered in New York, United States as of September 2026 and tracks 26,591 professional contacts across them, including 16,230 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers portfolio company consulting firms headquartered in New York, 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

801Companies

26,591Contacts tracked

16,230Verified emails

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The 25 largest portfolio company consulting firms based in New York, United States

Ranked by team size

Top 25 of 801 portfolio company consulting firms based in New York, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to portfolio company consulting 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	Alvarez & Marsal	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	10001+	13,099 contacts →
	Indirect evidence “Alvarez & Marsal is a leading global professional services firm dedicated to helping organizations tackle their most complex business issues, maximize stakeholder value, and…” Source: RevenueBase Database · checked Sep 29, 2026
2	Lazard	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	3,912 contacts →
	Indirect evidence “Founded in 1848, Lazard is the preeminent financial advisory and asset management firm, with operations in North and South America, Europe, the Middle East, Asia, and Australia.” Source: RevenueBase Database · checked Sep 29, 2026
3	Perella Weinberg	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	501-1,000	883 contacts →
	Indirect evidence “Perella Weinberg is a leading global independent financial services firm, founded in 2006 to address the need for experienced, trusted and unconflicted advice in the financial…” Source: RevenueBase Database · checked Sep 29, 2026
4	Centerview Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	501-1,000	693 contacts →
	Indirect evidence “Centerview Partners is a premier provider of independent investment-banking advisory services.” Source: RevenueBase Database · checked Sep 29, 2026
5	Cd&r	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	385 contacts →
	Indirect evidence “Founded in 1978, CD & R is an investment firm with an investment strategy predicated on building stronger, more profitable businesses.” Source: RevenueBase Database · checked Sep 29, 2026
6	W Capital Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	n/a	337 contacts →
	Indirect 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
7	Alpha Alternatives	Partial evidence	New York, United StatesHQ checked Sep 29, 2026	201-500	301 contacts →
	Partial evidence “Alpha Alternatives is the specialist alternatives consulting division of Alpha FMC, dedicated to creating value for private markets clients-including Private Equity, Private Debt…” Source: RevenueBase Database · checked Sep 29, 2026
8	Research Nester Analytics	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	191 contacts →
	Partial evidence “Research Nester is a global consulting firm that works with the most aspirational facilitators to define the future market strategies.” Source: RevenueBase Database · checked Sep 29, 2026
9	Evergreen Trading	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	151 contacts →
	Indirect evidence “Evergreen Trading delivers financial solutions to complex business challenges, turning unused business assets and balance-sheet liabilities into marketing opportunities, funding…” Source: RevenueBase Database · checked Sep 29, 2026
10	Lions Financial	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	11-50	142 contacts →
	Indirect evidence “We are an Independent Financial Services & Business Advisory Firm In business, it is crucial to track every dollar that goes in and out; each business decision impacts your…” Source: RevenueBase Database · checked Sep 29, 2026
11	Kingfish Group	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	11-50	138 contacts →
	Indirect evidence “Kingfish is a different kind of private equity firm.” Source: RevenueBase Database · checked Sep 29, 2026
12	Consello	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	137 contacts →
	Indirect evidence “Consello is an Advisory and Investing platform.” Source: RevenueBase Database · checked Sep 29, 2026
13	TJC	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	125 contacts →
	Indirect evidence “TJC LP, formerly known as The Jordan Company, has worked for more than 40 years with CEOs, founders and entrepreneurs across a range of industries including Diversified…” Source: RevenueBase Database · checked Sep 29, 2026
14	Aquiline	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	115 contacts →
	Indirect evidence “Aquiline is a New York, London and Philadelphia-based private investment specialist focused on financial services and technology.” Source: RevenueBase Database · checked Sep 29, 2026
15	ONE Rock Capital Partners, LLC	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	112 contacts →
	Indirect evidence “One Rock Capital Partners is a New York-based private equity firm with ~$10.0 billion of cumulative capital commitments focused on investing in companies across a range of…” Source: RevenueBase Database · checked Sep 29, 2026
16	Exbo Group	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	96 contacts →
	Indirect evidence “The lower-middle market has always deserved Big Four-caliber finance talent.” Source: RevenueBase Database · checked Sep 29, 2026
17	Sycamore Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	86 contacts →
	Indirect evidence “Sycamore Partners is a private equity firm based in New York specializing in retail and consumer investments.” Source: RevenueBase Database · checked Sep 29, 2026
18	Brightstar Capital Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	84 contacts →
	Indirect evidence “Brightstar Capital Partners is a middle-market private equity firm with more than $5bn AUM focused on control-oriented investments in business services, industrials, technology…” Source: RevenueBase Database · checked Sep 29, 2026
19	Sentinel Capital Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	78 contacts →
	Indirect evidence “Sentinel Capital Partners is one of the nation's leading private equity firms focused on the midmarket.” Source: RevenueBase Database · checked Sep 29, 2026
20	Tenex Capital Management	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	11-50	78 contacts →
	Indirect evidence “Tenex Capital Management is a private equity firm that invests in middle-market companies.” Source: RevenueBase Database · checked Sep 29, 2026
21	Acertitude	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	74 contacts →
	Indirect evidence “Acertitude is a global executive search firm and leadership consultancy committed to unleashing human potential.” Source: RevenueBase Database · checked Sep 29, 2026
22	M3 Partners	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	73 contacts →
	Indirect evidence “M3 Partners is a corporate advisory firm that specializes in maximizing performance and creating long term value for its clients.” Source: RevenueBase Database · checked Sep 29, 2026
23	Gottesman Company	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	70 contacts →
	Indirect evidence “Gottesman Company: Your Trusted Partner in Mergers and Acquisitions (M&A) Since 1985, Gottesman Company has been a leader in the M&A industry, recognized as one of the largest M&A…” Source: RevenueBase Database · checked Sep 29, 2026
24	ZCG	Partial evidence	New York, United StatesHQ checked Sep 29, 2026	51-200	64 contacts →
	Partial evidence “ZCG is a leading, privately held global firm comprised of private markets asset management, business consulting services, and technology development and solutions.” Source: RevenueBase Database · checked Sep 29, 2026
25	Merchant	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	11-50	64 contacts →
	Indirect evidence “Merchant is a private partnership providing growth capital, management resources, strategic opportunities and direction to independent financial services companies, particularly…” 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: portfolio company consulting 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 portfolio company consulting firms.
Partial evidence: Its own public description names part of portfolio company consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name portfolio company consulting 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 801 portfolio company consulting firms based in New York, United States

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Portfolio company consulting firms based in New York, United States at a glance

As of Sep 29, 2026

61.0%Verified-email coverage

33.2Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

534

11-50

213

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 801 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 portfolio company consulting 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 New York, United States whose own description of what they do matches “portfolio company consulting 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 portfolio company consulting 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 portfolio company consulting firms, and records with no verified work email. Companies headquartered outside New York 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, 16,230 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.

Portfolio company consulting firms by metro in the United States

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 portfolio company consulting 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 portfolio company consulting firms are there based in New York, United States?

RevenueBase identified 801 portfolio company consulting firms headquartered in New York, 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?

Alvarez & Marsal, headquartered in New York, tops this list with the largest team on record.

Which city in the United States has the most portfolio company consulting firms?

New York leads the United States with 801 headquartered companies, followed by Chicago (313) and Los Angeles (242).

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 16,230 verified decision-maker contacts tracked across these 801 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.