Company lists · Data refreshed September 2026

Top 25 Nonprofit accounting outsourcing firms based in the United States

RevenueBase identified 2,970 company matches for nonprofit accounting outsourcing firms associated with the United States as of September 2026 and tracks 18,521 professional contacts across them, including 7,786 with verified work emails. New York is the largest hub.

This list covers company matches for nonprofit accounting outsourcing firms associated with the 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 29, 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 29, 2026 How this list was built
2,970Companies
18,521Contacts tracked
7,786Verified emails
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The 25 largest nonprofit accounting outsourcing firms based in the United States

Ranked by team size
Top 25 of 2,970 company matches for nonprofit accounting outsourcing firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 29, 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 matchPhiladelphia, PA, United StatesHQ recorded Sep 29, 2026501-1,000775 contacts →

Exact match

“THE NONPROFIT ACCOUNTING SPECIALISTS.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
2Exact matchBeverly, MA, United StatesHQ recorded Sep 29, 202651-200415 contacts →

Exact match

“Outsourced Bookkeeping and Controller Services Supporting Strategies provides outsourced bookkeeping services, controller services and operational support to growing businesses.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
3Exact matchCoral Springs, FL, United StatesHQ recorded Sep 29, 2026201-500320 contacts →

Exact match

“Unison Globus is a global accounting outsourcing and offshore staffing partner dedicated to supporting CPA firms and accounting professionals.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
4Exact matchBurbank, CA, United StatesHQ recorded Sep 29, 2026201-500282 contacts →

Exact match

“Listen, then advise.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
5Exact matchIndianapolis, IN, United StatesHQ recorded Sep 29, 202651-200262 contacts →

Exact match

“As a national full-service accounting and advisory firm exclusively serving nonprofit organizations, CapinCrouse provides professional solutions to organizations whose outcomes…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
6Exact matchBethesda, MD, United StatesHQ recorded Sep 29, 202651-200243 contacts →

Exact match

“Headquartered in the Washington, DC metropolitan region, GRF CPAs & Advisors (GRF) is a full-service professional services firm providing clients with audit and assurance, tax…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
7Exact matchUnited StatesHQ recorded Sep 29, 2026201-500243 contacts →

Exact match

“Our name means “The Spirit of Serving Others.” It’s who we are and why we believe there’s no higher value than partnering with nonprofits to make the world a better place.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
8Exact matchRaleigh, NC, United StatesHQ recorded Sep 29, 2026201-500231 contacts →

Exact match

“Thomas, Judy and Tucker, P.A.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
9Exact matchNew York, NY, United StatesHQ recorded Sep 29, 202651-200197 contacts →

Exact match

“As certified public accountants and expert financial advisors, we empower non-profits to achieve their mission.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
10Exact matchDallas, TX, United StatesHQ recorded Sep 29, 2026201-500168 contacts →

Exact match

“Infinity Globus, a Springline company, is a leading accounting outsourcing firm with over two decades of industry experience, providing tailored taxation and accounting services…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
11Exact matchNew York, NY, United StatesHQ recorded Sep 29, 202651-200155 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
12Exact matchBuffalo, NY, United StatesHQ recorded Sep 29, 202651-200151 contacts →

Exact match

“Lumsden McCormick CPA is located in the newly renovated Cyclorama Building in downtown Buffalo.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
13Exact matchEagan, MN, United StatesHQ recorded Sep 29, 202651-200150 contacts →

Exact match

“All In One Accounting is your strategic accounting team dedicated to serving growth-minded entrepreneurs and mission-driven nonprofits by supporting profitable growth, protection…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
14Exact matchUsa, United StatesHQ recorded Sep 29, 202651-200125 contacts →

Exact match

“BWF Zuri is the nonprofit sector’s most comprehensive fundraising consulting company, helping organizations thrive in a rapidly changing landscape.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
15Exact matchMount Juliet, TN, United StatesHQ recorded Sep 29, 202651-200112 contacts →

Exact match

“Our number one priority at JMT is to empower nonprofits to achieve their mission through optimized systems and processes.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
16Exact matchNorthridge, CA, United StatesHQ recorded Sep 29, 202651-200109 contacts →

Exact match

“Charter Impact is a comprehensive back-office solution empowering charter schools and other non-profits with strategic financial management, operational expertise, and data-driven…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
17Exact matchBethesda, MD, United StatesHQ recorded Sep 29, 202651-200104 contacts →

Exact match

“For over 45 years, Rubino & Company, Chartered has provided outstanding public accounting, tax advisory, regulatory consulting, and financial services to clients in the…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
18Exact matchChicago, IL, United StatesHQ recorded Sep 29, 202651-200102 contacts →

Exact match

“Campbell & Company is a national nonprofit consulting firm that helps organizations create greater impact through fundraising, communications and strategic information services.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
19Exact matchNorth Bethesda, MD, United StatesHQ recorded Sep 29, 202651-200100 contacts →

Exact match

“Snyder Cohn is a mid-sized CPA and business advisory firm, founded in 1927 and specializing in serving business owners and executives of businesses and nonprofit organizations in…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
20Exact matchIrving, TX, United StatesHQ recorded Sep 29, 20261,001-5,00097 contacts →

Exact match

“Anand Tated a seasoned chartered accountant and the CEO of Pacific Accounting & Business Services (PABS) started PABS with his vision to customize modern solutions and deliver…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
21Exact matchFairfax, VA, United StatesHQ recorded Sep 29, 202651-20095 contacts →

Exact match

“MCB is a full-service accounting firm celebrating nearly 80 very independent years of business in the Washington, DC metro area.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
23Exact matchNew York, NY, United StatesHQ recorded Sep 29, 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 29, 2026 · View company records in RevenueBase
24Exact matchWashington, DC, United StatesHQ recorded Sep 29, 20261,001-5,00087 contacts →

Exact match

“Top accounting firm Raffa, P.C.”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase
25Exact matchPhiladelphia, PA, United StatesHQ recorded Sep 29, 202651-20083 contacts →

Exact match

“Schultz & Williams is a national consulting firm dedicated to helping nonprofits of all types and sizes achieve financial stability, meet organizational goals, and support greater…”

Recorded in the RevenueBase company graph · Sep 29, 2026 · View company records in RevenueBase

Showing 25 of 2,970 nonprofit accounting outsourcing firms based in the United States

See the full list, filter by size, metro and specialty, and access 7,786 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nonprofit accounting outsourcing firms based in the United States at a glance

As of Sep 29, 2026
42.0%Verified-email coverage
6.2Average contacts per company
1-10Median size (employees)
3.0%Largest-city concentration · New York
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
2,367
11-50
474
51-200
99
201-500
14
501-1,000
2
1,001-5,000
4
5,001-10,000
1
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 2,970 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 the United States whose business descriptions match “nonprofit accounting outsourcing firms” 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 7,786 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 29, 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.

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 “nonprofit accounting outsourcing firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nonprofit accounting outsourcing firms are there based in the United States?

RevenueBase identified 2,970 company matches for nonprofit accounting outsourcing firms associated with the 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?

Your Part-Time Controller, LLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most nonprofit accounting outsourcing firms?

New York leads with 88 company records, followed by Los Angeles (53) and Houston (43).

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 7,786 professional contacts with verified work emails tracked across these 2,970 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 29, 2026.

Ready to reach these companies? Verified emails and direct dials for all 2,970 nonprofit accounting outsourcing firms based in the United States. Start with a free account, no credit card.

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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.