Company lists · Data refreshed September 2026

Top 21 Small accountancy firms based in New York, United States

RevenueBase identified 273 small accountancy firms headquartered in New York, United States as of September 2026 and tracks 1,300 professional contacts across them, including 427 with verified work emails. New York is the largest hub.

This list covers small accountancy 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 21, 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 21, 2026 86% judged on-target in blind review
273Companies
1,300Contacts tracked
427Verified emails
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The 21 largest small accountancy firms based in New York, United States

Ranked by team size
Top 21 of 273 small accountancy firms based in New York, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to small accountancy 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202651-20075 contacts →

Indirect evidence

“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: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceNew York, United StatesHQ checked Sep 21, 202651-20064 contacts →

Indirect evidence

“Our accounting team utilizes online technology to help scale up your business by managing your Bookkeeping and Accounting, with a personalized touch.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202651-20062 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 21, 2026
4Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 2026n/a42 contacts →

Partial evidence

“We provide individuals and small businesses with professional accounting services.”

Source: RevenueBase Database · checked Sep 21, 2026
5Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 202611-5031 contacts →

Partial evidence

“Nongmin Consultancy Services (HireNCS) is a trusted partner for small and medium businesses, offering expert accounting & bookkeeping services.”

Source: RevenueBase Database · checked Sep 21, 2026
6Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 202611-5024 contacts →

Partial evidence

“The RMG Group provides comprehensive internal accounting support for small to mid-market businesses, startups, entrepreneurs, and sole proprietors.”

Source: RevenueBase Database · checked Sep 21, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202611-5019 contacts →

Indirect evidence

“Braj Aggarwal, CPA, P.C is a leading CPA and public accounting and tax consulting firm in new york that provides tax, assurance, bookkeeping, accounting, payroll, and advisory…”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 20261-1017 contacts →

Indirect evidence

“Here at Empire Tax Professionals, we care about your wealth.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202611-5015 contacts →

Indirect evidence

“A Trusted Accounting and Tax Advisor for Nearly 100 Years At LHF, we know that businesses are at the heart of our community.”

Source: RevenueBase Database · checked Sep 21, 2026
10Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202611-5015 contacts →

Indirect evidence

“We are a full service accounting firm serving clients throughout the United States.”

Source: RevenueBase Database · checked Sep 21, 2026
11Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 20261-1013 contacts →

Indirect evidence

“Romano & Associates had a dream of opening a great accounting firm since back in the early 90’s.”

Source: RevenueBase Database · checked Sep 21, 2026
12Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202611-5013 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
13Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 20261-1012 contacts →

Indirect evidence

“For over 40 years, C.”

Source: RevenueBase Database · checked Sep 21, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 20261-1011 contacts →

Partial evidence

“A member of the of American Institute of Certified Public Accountants and of the New York State Society of Certified Public Accountants, Ivan Gittardi CPA LLC is a professional…”

Source: RevenueBase Database · checked Sep 21, 2026
15Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 202611-5010 contacts →

Partial evidence

“Rosenberg Chesnov, provides a collaborative and proactive approach to accounting, income tax, business, financial and advisory services for small to mid-size companies and…”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 20261-1010 contacts →

Indirect evidence

“At AJOY, we believe accounting, tax preparation, payroll and financial management don’t have to be a hassle.”

Source: RevenueBase Database · checked Sep 21, 2026
17Partial evidenceNew York, NY, United StatesHQ checked Sep 21, 20261-109 contacts →

Partial evidence

“ONE is dedicated to serving the accounting and tax needs of small to mid-sized businesses and individuals.”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 20261-109 contacts →

Indirect evidence

“With more than 20 years of experience KPM Business offers accounting, business consulting, tax services and more, all with the goal of providing you and your company with a better…”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 20261-109 contacts →

Indirect evidence

“Anil Melwani, CPA & 212 Tax are now part of the team at Tanton Grubman CPAs LLP!”

Source: RevenueBase Database · checked Sep 21, 2026
20Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 202611-508 contacts →

Indirect evidence

“Boutique public accounting firm providing Tax, Financial and Advisory Services for Businesses, Individuals and Nonprofits.”

Source: RevenueBase Database · checked Sep 21, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 21, 20261-108 contacts →

Indirect evidence

“Real CPA’s.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 21 of 273 small accountancy firms based in New York, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 427 reachable decision-makers.

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Small accountancy firms based in New York, United States at a glance

As of Sep 21, 2026
32.8%Verified-email coverage
4.8Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · New York
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
202
11-50
51
51-200
17

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 273 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 small accountancy 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 “small accountancy 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 small accountancy 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 small accountancy 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, 427 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 21, 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.

Small accountancy 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 small accountancy 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 small accountancy firms are there based in New York, United States?

RevenueBase identified 273 small accountancy 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?

Fasten Halberstam LLP, headquartered in New York, tops this list with the largest team on record.

Which city has the most small accountancy firms?

New York leads with 273 headquartered companies, followed by Houston (248) and Los Angeles (141).

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 427 verified decision-maker contacts tracked across these 273 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 21, 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.