Company lists · Data refreshed September 2026

Top 12 Private equity advisors based in Greenwich, United States

RevenueBase identified 30 private equity advisors headquartered in Greenwich, United States as of September 2026 and tracks 273 professional contacts across them, including 121 with verified work emails. New York is the largest hub.

This list covers private equity advisors headquartered in Greenwich, 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
30Companies
273Contacts tracked
121Verified emails
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The 12 largest private equity advisors based in Greenwich, United States

Ranked by team size
Top 12 of 30 private equity advisors based in Greenwich, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names private equity advisors: 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.
#CompanyHeadquartersEmployeesContacts
1
Alvarez & Marsal CapitalStrong evidence
Greenwich, CT, United KingdomHQ outside United StatesHQ checked Sep 5, 202651-20053

“A&M Capital is a multi-strategy private equity investment firm with over $6.0 billion in total commitments across its funds, vehicles, and accounts.”

Source: company website · checked Sep 5, 2026
2
Greenbriar Equity GroupStrong evidence
Greenwich, CT, United KingdomHQ outside United StatesHQ checked Sep 5, 202611-5047

“A sector-focused private equity investment firm, with more than 20 years of experience partnering with middle market businesses.”

Source: company website · checked Sep 5, 2026
3
Chatsworth Securities LLCIndirect evidence
Greenwich, CT, United KingdomHQ outside United StatesHQ checked Sep 5, 202651-20037

“Chatsworth Securities LLC is a leading investment banking firm dedicated to empowering the vision of institutional clients worldwide.”

Source: company website · checked Sep 5, 2026
4Greenwich, CT, United KingdomHQ outside United StatesHQ checked Sep 5, 202611-5032

“Union Capital Associates, LP is a private equity firm that specializes in making investments in family owned businesses between $20 million and $200 million in revenues.”

Source: company website · checked Sep 5, 2026
5
Teton Advisors, INCPartial evidence
Greenwich, CT, United KingdomHQ outside United StatesHQ checked Sep 5, 202611-5014

“Teton Advisors, Inc.(OTCQX) is a specialist in smaller company investing, serving a diverse client base of institutional, HNW & mutual fund investors.”

Source: company website · checked Sep 5, 2026
6
Stone KEY GroupPartial evidence
Greenwich, CT, United KingdomHQ outside United StatesHQ checked Sep 5, 202611-508

“Stone Key Group is a strategic advisory firm focused on the Government and Commercial Technology sectors.”

Source: company website · checked Sep 5, 2026
7
Middlemark PartnersPartial evidence
Greenwich, CT, United KingdomHQ outside United StatesHQ checked Sep 5, 20261-105

“Middlemark Partners is a boutique alternative investments marketing and advisory firm.”

Source: company website · checked Sep 5, 2026
8Greenwich, CT, United KingdomHQ outside United StatesHQ checked Sep 5, 202611-505

“Endeavour Capital Advisors Inc, located in Greenwich, CT, is a boutique asset management firm investing in the financial services sector across public and private equities.”

Source: company website · checked Sep 5, 2026
9Greenwich, CT, United KingdomHQ outside United StatesHQ checked Sep 5, 202611-504

“Deccan Value Investors provides investment management and advisory services to some of the worlds leading endowments, foundations and family offices.”

Source: company website · checked Sep 5, 2026
10
Tempus AdvisorsIndirect evidence
Greenwich, CT, United KingdomHQ outside United StatesHQ checked Sep 5, 20261-104

“While there are many commodities in the world, time may be the rarest of all.”

Source: company website · checked Sep 5, 2026
11
Jacobs Private Equity LLCIndirect evidence
Greenwich, CT, United KingdomHQ outside United StatesHQ checked Sep 5, 202611-502

“Brad Jacobs, Managing Partner of JPE, is a career CEO with a unique track record of creating value for shareholders.”

Source: company website · checked Sep 5, 2026
12
Optimum Advisors LLCStrong evidence
Greenwich, CT, United KingdomHQ outside United StatesHQ checked Sep 5, 20261-101

“Optimum Advisors LLC provides strategic, operational and management consulting services to the middle market private equity and finance community.”

Source: company website · checked Sep 5, 2026

Showing 12 of 30 private equity advisors based in Greenwich, United States

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Private equity advisors based in Greenwich, United States at a glance

As of Sep 5, 2026
1-10Median size (employees)
New YorkLargest hub · 988 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
16
11-50
12
51-200
2

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 Greenwich, over 30 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 advisors, 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 Greenwich, United States whose own description of what they do matches “private equity advisors”. 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 private equity advisors, and records with no verified work email. Companies headquartered outside Greenwich 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, 121 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.

Private equity advisors by metro in the United States

Frequently asked

How many private equity advisors are there based in Greenwich, United States?

RevenueBase identified 30 private equity advisors headquartered in Greenwich, 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 Capital, headquartered in Greenwich, tops this list with the largest team on record.

Which city has the most private equity advisors?

New York leads with 988 headquartered companies, followed by Chicago (263) and Miami (202).

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 121 verified decision-maker contacts tracked across these 30 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.