Company lists · Data refreshed September 2026

Top 25 Professional services firms based in New York, United States

RevenueBase identified 593 professional services firms headquartered in New York, United States as of September 2026 and tracks 66,570 professional contacts across them, including 27,824 with verified work emails. New York is the largest hub.

This list covers professional services 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, 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
593Companies
66,570Contacts tracked
27,824Verified emails
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The 25 largest professional services firms based in New York, United States

Ranked by team size
Top 25 of 593 professional services firms based in New York, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names professional services firms: 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
Kpmg USStrong evidence
New York, NY, United StatesHQ checked Sep 5, 202610001+45,394

“KPMG is one of the world’s leading professional services firms and the fastest growing Big Four accounting firm in the United States.”

Source: company website · checked Sep 5, 2026
2
EisneramperIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20261,001-5,0004,199

“EisnerAmper, one of the largest business consulting firms in the world, is comprised of EisnerAmper LLP, a licensed independent CPA firm that provides client attest services; and…”

Source: company website · checked Sep 5, 2026
3
Citrin CoopermanStrong evidence
New York, United StatesHQ checked Sep 5, 20261,001-5,0002,996

“Citrin Cooperman is one of the nation’s largest and fastest-growing professional services firms.”

Source: company website · checked Sep 5, 2026
4
Uhy-UsStrong evidence
New York, NY, United StatesHQ checked Sep 5, 20261,001-5,0002,035

“UHY is one of the nation’s largest professional services firms providing audit, tax, consulting and advisory services to clients primarily in the dynamic middle market.”

Source: company website · checked Sep 5, 2026
5
Marcum LLPIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20265,001-10,0001,332

“As of November 1, 2024, Marcum has been acquired by CBIZ.”

Source: company website · checked Sep 5, 2026
6
AnchinIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 2026501-1,000602

“Effective July 1, 2026, Anchin combined with Baker Tilly, a leading advisory, tax, and assurance firm with a national and global presence across major U.S.”

Source: company website · checked Sep 5, 2026
7
Prager Metis CpasIndirect evidence
New York, United StatesHQ checked Sep 5, 2026201-500467

“Prager Metis CPAs is an independent, full service, public accounting and consulting firm.”

Source: company website · checked Sep 5, 2026
8
WISSIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 2026201-500464

“At Wiss, we believe there’s more to accounting than just balancing the books.”

Source: company website · checked Sep 5, 2026
9
Cbiz Marks PanethIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 2026501-1,000289

“CBIZ Marks Paneth, formerly known as Marks Paneth LLP, joined CBIZ and Mayer Hoffman McCann P.C.(MHM) in January 2022.”

Source: company website · checked Sep 5, 2026
10
Friedman LLPIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20261,001-5,000203

“Effective September 1, 2022, Friedman LLP is now Marcum – creating one of the most innovative accounting and advisory firms in the U.S.”

Source: company website · checked Sep 5, 2026
11
Funaro & COIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-200146

“Founded in 1947, Funaro & Co.”

Source: company website · checked Sep 5, 2026
12New York, NY, United StatesHQ checked Sep 5, 202651-200145

“Konnect Books & Taxes, is an International Bookkeeping, Tax & Advisory firm, in the USA, with CPAs & Accountants, ready to help you take care of ALL your numbers.”

Source: company website · checked Sep 5, 2026
13
DDKIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-200133

“DDK is dedicated to being more than a CPA firm that focuses solely on minimizing taxes, avoiding penalties, and preparing financial statements.”

Source: company website · checked Sep 5, 2026
14
DFP PartnersIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-200110

“For over 40 years, DFP Partners has been a committed ally to Broker-Dealers, Registered Investment Advisers, and other financial services firms looking for accounting and…”

Source: company website · checked Sep 5, 2026
15
Mitchell & Titus, LLPIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-200108

“As the largest minority-controlled accounting firm in the United States, Mitchell Titus provides excellence in assurance, advisory and tax services to Fortune organizations…”

Source: company website · checked Sep 5, 2026
16
RLN US LLPIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-20097

“RLN US LLP is a consulting firm helping clients navigate complex issues related to business operations.”

Source: company website · checked Sep 5, 2026
17
Perelson Weiner LLPIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-20090

“Perelson Weiner LLP is a leading advisory and full-service accounting firm where longstanding client relationships and technical expertise come together to positively impact our…”

Source: company website · checked Sep 5, 2026
18
LMCIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-20086

“Our Vision: Dream Big | Go All In At LMC, our vision is to Dream Big | Go All In.”

Source: company website · checked Sep 5, 2026
19
Emmet, Marvin & Martin, LLPIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-20081

“Emmet, Marvin & Martin, LLP is a law firm committed to a tradition of excellence.”

Source: company website · checked Sep 5, 2026
20
Rbsm LLPIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-20076

“RBSM LLP is a full service public accounting firm with operating offices in New York, NY, Washington, DC, San Francisco, CA, Las Vegas, NV, Athens, Greece, Beijing, China, Mumbai…”

Source: company website · checked Sep 5, 2026
21
Fasten Halberstam LLPIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-20075

“Fasten Halberstam LLP is a full service accounting firm offering a broad range of services for a diversified clientele representing a variety of industries.”

Source: company website · checked Sep 5, 2026
22
Raich Ende Malter & Co. LLPIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 20261,001-5,00073

“Exciting news for our firm: Raich Ende Malter & Co.”

Source: company website · checked Sep 5, 2026
23
Kiwi PartnersIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-20072

“Kiwi Partners delivers exceptional Accounting, Consulting Services, and HR services to the nonprofit community.”

Source: company website · checked Sep 5, 2026
24
DVS Advisory GroupStrong evidence
New York, NY, United StatesHQ checked Sep 5, 202651-20068

“DVS Advisors is a tax-centric, diversified professional services organization with presence in 4 countries and partners in over 100 countries through our affiliations.”

Source: company website · checked Sep 5, 2026
25
Better Accounting SolutionsIndirect evidence
New York, NY, United StatesHQ checked Sep 5, 202651-20062

“We offer a wide range of custom accounting, bookkeeping and consulting services: Tax Accounting Services, Bookkeeping, Consulting Services, Payroll, Report Generation, QuickBooks…”

Source: company website · checked Sep 5, 2026

Showing 25 of 593 professional services firms based in New York, United States

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Professional services firms based in New York, United States at a glance

As of Sep 5, 2026
1-10Median size (employees)
New YorkLargest hub · 593 HQs
Contacts with mobile numbers
Sep 5, 2026Data refreshed

Companies by employee count

1-10
380
11-50
139
51-200
52
201-500
4
501-1,000
4
1,001-5,000
7
5,001-10,000
1
10001+
3

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 New York, over 593 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 professional services firms, 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 New York, United States whose own description of what they do matches “professional services firms”. 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 professional services 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 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, 27,824 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.

Professional services firms by metro in the United States

Frequently asked

How many professional services firms are there based in New York, United States?

RevenueBase identified 593 professional services 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?

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

Which city has the most professional services firms?

New York leads with 593 headquartered companies, followed by Houston (420) and Atlanta (304).

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 27,824 verified decision-maker contacts tracked across these 593 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.