Company lists · Data refreshed September 2026

Top 25 Outsourced accounting services companies based in New York, United States

RevenueBase identified 241 outsourced accounting services companies headquartered in New York, United States as of September 2026 and tracks 2,473 professional contacts across them, including 663 with verified work emails. New York is the largest hub.

This list covers outsourced accounting services companies 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 20, 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 20, 2026 86% judged on-target in blind review
241Companies
2,473Contacts tracked
663Verified emails
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The 25 largest outsourced accounting services companies based in New York, United States

Ranked by team size
Top 25 of 241 outsourced accounting services companies based in New York, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to outsourced accounting services companies: 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
1Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 20261,001-5,000397 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
2Strong evidenceNew York, United StatesHQ checked Sep 20, 2026201-500339 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
3Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-200155 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
4Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-20092 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-20088 contacts →

Indirect evidence

“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.”

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceNew York, United StatesHQ checked Sep 20, 202651-20064 contacts →

Partial 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 20, 2026
7Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-20062 contacts →

Strong evidence

“Welcome to CRSP Connect, your trusted partner in outsourcing and offshore staffing solutions, tailored for Certified Public Accountants, Enrolled Agents, accounting firms, and…”

Source: RevenueBase Database · checked Sep 20, 2026
8Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-20062 contacts →

Partial 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 20, 2026
9Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 2026201-50058 contacts →

Indirect evidence

“We take the complication out of any business.”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5043 contacts →

Partial evidence

“Unloop is the first and only accounting firm exclusively servicing ecommerce and inventory businesses in the US and Canada.”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 2026n/a42 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5031 contacts →

Partial evidence

“The CFO Squad is a financial and business consulting firm providing consulting and outsourced CFO services for companies in a wide range of businesses and industries.”

Source: RevenueBase Database · checked Sep 20, 2026
13Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5031 contacts →

Strong evidence

“Caroprese & Company is a strategic certified public accounting firm delivering tailored accounting, tax, advisory, and business process outsourcing solutions that help businesses…”

Source: RevenueBase Database · checked Sep 20, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 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 20, 2026
15Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 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 20, 2026
16Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5023 contacts →

Partial evidence

“We help great businesses get their Finance & Accounting in order.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5019 contacts →

Indirect evidence

“Working with Ursa Consultants is more than a partnership.”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-20019 contacts →

Indirect evidence

“There's a reason so many people are choosing to scuttle their billing departments and move to a virtual bookkeeping solution: it's more efficient and cost effective.”

Source: RevenueBase Database · checked Sep 20, 2026
19Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 20261-1017 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 20, 2026
20Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5016 contacts →

Partial evidence

“Revenu redefines financial management by blending meticulous accounting with expert CFO services.”

Source: RevenueBase Database · checked Sep 20, 2026
21Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5016 contacts →

Indirect evidence

“Bob's Bookkeepers is a team of financial experts providing bookkeeping and strategic financial guidance for startups and later stage companies.”

Source: RevenueBase Database · checked Sep 20, 2026
22Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5014 contacts →

Partial evidence

“Velo CFO is the leading Fractional CFO and accounting partner to category defining entrepreneurs.”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceNew York, United StatesHQ checked Sep 20, 20261-1012 contacts →

Partial evidence

“Fractional CFO and outsourced bookkeeping and controller services.”

Source: RevenueBase Database · checked Sep 20, 2026
24Strong evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5011 contacts →

Strong evidence

“The Profit Line is a leading bookkeeping firm in NYC, specializing in outsourced bookkeeping, accounting, back office & controller services to small businesses and nonprofits.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5010 contacts →

Indirect evidence

“Cubepros is a cloud-based back office services firm for small businesses.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 241 outsourced accounting services companies 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 663 reachable decision-makers.

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Outsourced accounting services companies based in New York, United States at a glance

As of Sep 20, 2026
26.8%Verified-email coverage
10.3Average contacts per company
1-10Median size (employees)
100.0%Largest-city concentration · New York
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
159
11-50
57
51-200
18
201-500
5
1,001-5,000
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 241 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 outsourced accounting services companies, 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 “outsourced accounting services companies”. 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 outsourced accounting services companies), 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 outsourced accounting services companies, 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, 663 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 20, 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.

Outsourced accounting services companies 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 outsourced accounting services companies, 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 outsourced accounting services companies are there based in New York, United States?

RevenueBase identified 241 outsourced accounting services companies 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?

Outsource Partners International Alumni, headquartered in New York, tops this list with the largest team on record.

Which city has the most outsourced accounting services companies?

New York leads with 241 headquartered companies, followed by Houston (172) and Los Angeles (154).

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 663 verified decision-maker contacts tracked across these 241 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 20, 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.