Company lists · Data refreshed September 2026

Top 25 Accounting firm business process outsourcing companies based in New York, United States

RevenueBase identified 428 company matches for accounting firm business process outsourcing companies associated with New York, United States as of September 2026 and tracks 14,881 professional contacts across them, including 5,713 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers company matches for accounting firm business process outsourcing companies associated with New York, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 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 RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built
428Companies
14,881Contacts tracked
5,713Verified emails
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The 25 largest accounting firm business process outsourcing companies based in New York, United States

Ranked by team size
Top 25 of 428 company matches for accounting firm business process outsourcing companies based in New York, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchNew York, NY, United StatesHQ recorded Sep 27, 20261,001-5,0004,199 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Sep 27, 2026501-1,000870 contacts →

Exact match

“Cogneesol is a global professional services firm offering comprehensive bespoke and ready-to-deploy business process management solutions to help businesses optimize, innovate and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchNew York, United StatesHQ recorded Sep 27, 2026201-500467 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchNew York, NY, United StatesHQ recorded Sep 27, 20261,001-5,000397 contacts →

Exact match

“Outsource Partners International (OPI) is a professional services firm dedicated to the outsourcing of finance, accounting, and analytics business processes.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchNew York, United StatesHQ recorded Sep 27, 2026201-500339 contacts →

Exact match

“OHI is a specialized finance and real estate accounting outsourcing service provider with operations out of New Delhi (India) since 2006.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchNew York, NY, United StatesHQ recorded Sep 27, 2026201-500324 contacts →

Exact match

“For over 15 years, Makosi has been redefining what’s possible in the accounting and audit industry with cutting-edge, tech-powered workforce solutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchNew York, NY, United StatesHQ recorded Sep 27, 2026201-500320 contacts →

Exact match

“1-800Accoutant is America’s leading virtual accounting firm for small businesses.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United StatesHQ recorded Sep 27, 2026501-1,000252 contacts →

Exact match

“SAPRO is a global, tech-enabled talent outsourcing firm specializing in Assurance, Tax, Advisory, and Client Accounting Services (CAS).”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Sep 27, 20261,001-5,000203 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202651-200155 contacts →

Exact match

“Accounting Outsourcing to Drive Growth for Global CPA Firms & MNCs.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202651-200146 contacts →

Exact match

“Founded in 1947, Funaro & Co.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202651-200145 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchNew York, NY, United StatesHQ recorded Sep 27, 2026201-500130 contacts →

Exact match

“If you are running your own accounting and tax consulting practice, you must like this by all means.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202651-200120 contacts →

Exact match

“Marcum Asia CPAs LLP is a PCAOB-registered independent accounting firm specializing in cross-border transactions between Asia-based companies and the U.S.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Sep 27, 2026501-1,000110 contacts →

Exact match

“Zenov BPO delivers specialized business process outsourcing solutions for companies in logistics, trucking, real estate, plumbing, insurance, and other service-driven industries.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202651-200108 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchNew York, United StatesHQ recorded Sep 27, 202651-200100 contacts →

Exact match

“The #1 Team Startups Rely On For Accounting, CFO & Tax.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202651-20097 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202651-20092 contacts →

Exact match

“We are one of the leading offshore companies that offer the best in the industry staffing solutions to CPAs, accounting firms, and other companies.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202611-5090 contacts →

Exact match

“About us- United States Certified Public Accountant with IRS e-file - Registered IRS Tax Preparer with valid PTIN for all 50 states - 10+ years experience in accounting - 5 star…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202651-20088 contacts →

Exact match

“Consero Global Acquires BTQ Financial, Expanding Its Reach to the Non-Profit World With a Leading Provider of Finance as a Service to the Sector.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202651-20076 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202651-20075 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchNew York, NY, United StatesHQ recorded Sep 27, 20261,001-5,00073 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchNew York, United StatesHQ recorded Sep 27, 202651-20064 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 428 accounting firm business process outsourcing companies based in New York, United States

See the full list, filter by size, metro and specialty, and access 5,713 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Accounting firm business process outsourcing companies based in New York, United States at a glance

As of Sep 27, 2026
38.4%Verified-email coverage
34.8Average contacts per company
1-10Median size (employees)
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
255
11-50
103
51-200
44
201-500
12
501-1,000
3
1,001-5,000
6
10001+
1

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 428 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with New York, United States whose business descriptions match “accounting firm business process outsourcing companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 5,713 professional contacts with verified work emails across the full matched dataset. 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 27, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Accounting firm business process outsourcing companies by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “accounting firm business process outsourcing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many accounting firm business process outsourcing companies are there based in New York, United States?

RevenueBase identified 428 company matches for accounting firm business process outsourcing companies associated with New York, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Eisneramper tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most accounting firm business process outsourcing companies?

New York leads the United States with 428 company records, followed by Houston (301) and Los Angeles (231).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 5,713 professional contacts with verified work emails tracked across these 428 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 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.