Company lists · Data refreshed November 2026

Top 25 Nonprofit auditing services based in the United States

RevenueBase identified 571 company matches for nonprofit auditing services associated with the United States as of November 2026 and tracks 8,299 professional contacts across them, including 4,043 with verified work emails. New York is the largest hub.

This list covers company matches for nonprofit auditing services 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 November 6, 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 Nov 6, 2026 How this list was built
571Companies
8,299Contacts tracked
4,043Verified emails
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The 25 largest nonprofit auditing services based in the United States

Ranked by team size
Top 25 of 571 company matches for nonprofit auditing services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 Nov 6, 2026501-1,000837 contacts →

Exact match

“THE NONPROFIT ACCOUNTING SPECIALISTS.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchUnited StatesHQ recorded Nov 6, 2026201-500287 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 · Nov 6, 2026 · View company records in RevenueBase
3Exact matchIndianapolis, CA, United StatesHQ recorded Nov 6, 202651-200273 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 · Nov 6, 2026 · View company records in RevenueBase
4Exact matchBethesda, MD, United StatesHQ recorded Nov 6, 202651-200270 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 · Nov 6, 2026 · View company records in RevenueBase
5Exact matchNaperville, IL, United StatesHQ recorded Nov 6, 2026201-500235 contacts →

Exact match

“Lauterbach & Amen, LLP (L&A), established in 1997 by partners Sherry Lauterbach and Ron Amen, is a reputable public accounting firm known for its unwavering dedication to quality…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchWestchester, MN, United StatesHQ recorded Nov 6, 202651-200189 contacts →

Exact match

“Legacy Professionals LLP, headquartered in Westchester, IL, with offices in Schererville, IN, and Edina, MN, is a Certified Public Accounting firm serving clients nationwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchBuffalo, NY, United StatesHQ recorded Nov 6, 202651-200155 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchPittsburgh, PA, United StatesHQ recorded Nov 6, 202651-200144 contacts →

Exact match

“Maher Duessel is a leading regional CPA firm that was founded to provide high-caliber audit, tax, and consulting services to clients in the governmental and non-profit sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchBethesda, MD, United StatesHQ recorded Nov 6, 202651-200116 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 · Nov 6, 2026 · View company records in RevenueBase
10Exact matchUtica, NY, United StatesHQ recorded Nov 6, 202651-200106 contacts →

Exact match

“Bringing our clients over 75 years of dedicated experience and service, D'Arcangelo & Co, LLP offers our clients a distinct difference through unsurpassed accounting, auditing…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchWashington, MD, United StatesHQ recorded Nov 6, 20261,001-5,00094 contacts →

Exact match

“Top accounting firm Raffa, P.C.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchMiddleton, WI, United StatesHQ recorded Nov 6, 202651-20086 contacts →

Exact match

“Quality service through our commitment to staff and clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchDallas, TX, United StatesHQ recorded Nov 6, 202611-5079 contacts →

Exact match

“SST Accountants & Consultants provides tax, audit, accounting, and business advisory services to privately-held businesses and individuals.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-20076 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchWesterville, OH, United StatesHQ recorded Nov 6, 202651-20070 contacts →

Exact match

“Julian & Grube is proud to provide a wide array of accounting services to local governments throughout the State of Ohio.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“Blazek & Vetterling is a Houston-based, audit and tax firm specializing in tax-exempt organizations, government entities, and employee benefit plans.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-20067 contacts →

Exact match

“Our firm was created to meet the unique needs of nonprofit organizations and their missions and we have concentrated our accounting and auditing practice exclusively in the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchHouston, TX, United StatesHQ recorded Nov 6, 202651-20066 contacts →

Exact match

“Accounting, auditing and tax services to public companies, non-public companies and their owners, not-for-profits and employee benefit plans”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchWashington, DC, United StatesHQ recorded Nov 6, 202651-20061 contacts →

Exact match

“Han Group is a public accounting firm committed to serving the nonprofit community by providing unparalleled expertise in nonprofit Audits & Assurance, Managed Accounting, Tax…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchIrvine, CA, United StatesHQ recorded Nov 6, 202651-20059 contacts →

Exact match

“Davis Farr is a full-service CPA firm specializing in governmental and nonprofit auditing, with offices in Irvine, Carlsbad, and Tacoma.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchTucson, AZ, United StatesHQ recorded Nov 6, 202651-20057 contacts →

Exact match

“HeinfeldMeech is a premier auditing and consulting firm specializing in the service of governmental and nonprofit organizations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-20056 contacts →

Exact match

“Carey & Co helps nonprofits grow by providing outsourced financial leadership and services that support efficient operations, transparent finances, and strategic decision-making.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchMclean, NY, United StatesHQ recorded Nov 6, 202651-20054 contacts →

Exact match

“Rogers & Company provides industry-leading audit, assurance, tax, outsourcing, and advisory services to many recognized national and international nonprofit organizations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchHarrisburg, PA, United StatesHQ recorded Nov 6, 202651-20053 contacts →

Exact match

“Zelenkofske Axelrod LLC (ZA) is a regional CPA firm with offices in Harrisburg, Greater Philadelphia (Jamison), Pittsburgh, and Greensburg, Pennsylvania; Frankford, Delaware; and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchPlymouth, MI, United StatesHQ recorded Nov 6, 202651-20053 contacts →

Exact match

“Formed in 1987, Financial One was founded because of the need nonprofit organizations have for accurate and timely financial information.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 571 nonprofit auditing services based in the United States

See the full list, filter by size, metro and specialty, and access 4,043 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Nonprofit auditing services based in the United States at a glance

As of Nov 6, 2026
48.7%Verified-email coverage
14.5Average contacts per company
1-10Median size (employees)
4.6%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
367
11-50
162
51-200
34
201-500
4
501-1,000
1
1,001-5,000
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 571 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 auditing services” 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 4,043 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 November 6, 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.

Nonprofit auditing services by metro

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 auditing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many nonprofit auditing services are there based in the United States?

RevenueBase identified 571 company matches for nonprofit auditing services associated with the United States as of November 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 auditing services?

New York leads with 26 company records, followed by Atlanta (11) and Houston (10).

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 4,043 professional contacts with verified work emails tracked across these 571 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 November 6, 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.