Company lists · Data refreshed September 2026

Top 25 Nonprofit accounting and tax prep services based in the United States

Name: Nonprofit accounting and tax prep services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 12,141 companies tracked

RevenueBase identified 12,141 nonprofit accounting and tax prep services headquartered in the United States as of September 2026 and tracks 113,142 professional contacts across them, including 25,619 with verified work emails. New York is the largest hub.

This list covers nonprofit accounting and tax prep services headquartered in the 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

12,141Companies

113,142Contacts tracked

25,619Verified emails

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The 25 largest nonprofit accounting and tax prep services based in the United States

Ranked by team size

Top 25 of 12,141 nonprofit accounting and tax prep services based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to nonprofit accounting and tax prep services: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	H&r Block	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 21, 2026	10001+	59,451 contacts →
	Indirect evidence “H&R Block’s purpose is simple: To provide help and inspire confidence in our clients and communities everywhere.” Source: RevenueBase Database · checked Sep 21, 2026
2	Block Advisors	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 21, 2026	1,001-5,000	1,379 contacts →
	Indirect evidence “We are Block Advisors by H&R Block.” Source: RevenueBase Database · checked Sep 21, 2026
3	Your Part-Time Controller, LLC	Strong evidence	Philadelphia, PA, United StatesHQ checked Sep 21, 2026	501-1,000	775 contacts →
	Strong evidence “THE NONPROFIT ACCOUNTING SPECIALISTS.” Source: RevenueBase Database · checked Sep 21, 2026
4	Cohesive	Indirect evidence	Exton, PA, United StatesHQ checked Sep 21, 2026	501-1,000	364 contacts →
	Indirect evidence “Cohesive is a leading solutions provider and systems integrator for IBM Maximo.” Source: RevenueBase Database · checked Sep 21, 2026
5	Advantage ONE TAX Consulting	Partial evidence	Sterling, VA, United StatesHQ checked Sep 21, 2026	201-500	347 contacts →
	Partial evidence “Advantage One Tax Consulting is a multi-disciplinary group of highly experienced tax professionals who understand the tax practice in its true spirit, examine the issues it faces…” Source: RevenueBase Database · checked Sep 21, 2026
6	pilot.com	Strong evidence	San Francisco, TN, United StatesHQ checked Sep 21, 2026	201-500	338 contacts →
	Strong evidence “Pilot provides the most reliable accounting, CFO, and tax services for startups and small businesses.” Source: RevenueBase Database · checked Sep 21, 2026
7	Mayatax	Indirect evidence	Houston, TX, United StatesHQ checked Sep 21, 2026	501-1,000	269 contacts →
	Indirect evidence “Growth exposes financial weakness.” Source: RevenueBase Database · checked Sep 21, 2026
8	Capincrouse	Strong evidence	Indianapolis, IN, United StatesHQ checked Sep 21, 2026	51-200	262 contacts →
	Strong evidence “As a national full-service accounting and advisory firm exclusively serving nonprofit organizations, CapinCrouse provides professional solutions to organizations whose outcomes…” Source: RevenueBase Database · checked Sep 21, 2026
9	Calibre CPA Group, Pllc	Partial evidence	Bethesda, MD, United StatesHQ checked Sep 21, 2026	201-500	254 contacts →
	Partial evidence “Calibre CPA Group is a national accounting and advisory firm serving associations, not-for-profit organizations, labor unions, employee benefit plans, and business enterprises.” Source: RevenueBase Database · checked Sep 21, 2026
10	Jitasa	Partial evidence	United StatesHQ checked Sep 21, 2026	201-500	243 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
11	Ncheng LLP	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	51-200	197 contacts →
	Indirect evidence “As certified public accountants and expert financial advisors, we empower non-profits to achieve their mission.” Source: RevenueBase Database · checked Sep 21, 2026
12	Legacy Professionals LLP	Partial evidence	Westchester, IL, United StatesHQ checked Sep 21, 2026	51-200	174 contacts →
	Partial evidence “Legacy Professionals LLP, headquartered in Westchester, IL, with offices in Schererville, IN, and Edina, MN, is a Certified Public Accounting firm serving clients nationwide.” Source: RevenueBase Database · checked Sep 21, 2026
13	Lumsden Mccormick CPA	Indirect evidence	Buffalo, NY, United StatesHQ checked Sep 21, 2026	51-200	151 contacts →
	Indirect evidence “Lumsden McCormick CPA is located in the newly renovated Cyclorama Building in downtown Buffalo.” Source: RevenueBase Database · checked Sep 21, 2026
14	Accounting Solutions	Partial evidence	Houston, PA, United StatesHQ checked Sep 21, 2026	n/a	149 contacts →
	Partial evidence “Accounting Solutions provides a wide range of services to individuals and businesses in a variety of industries.” Source: RevenueBase Database · checked Sep 21, 2026
15	Maher Duessel	Partial evidence	Pittsburgh, PA, United StatesHQ checked Sep 21, 2026	51-200	135 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
16	Scheffel Boyle	Indirect evidence	Alton, IL, United StatesHQ checked Sep 21, 2026	51-200	129 contacts →
	Indirect evidence “Scheffel Boyle started as a hometown firm, and although we have grown significantly during our over 100 years in business, we still have the local feel our clients appreciate.” Source: RevenueBase Database · checked Sep 21, 2026
17	Cerini And Associates, LLP	Partial evidence	Bohemia, NY, United StatesHQ checked Sep 21, 2026	51-200	120 contacts →
	Partial evidence “Cerini & Associates, LLP is a full service accounting firm with a staff of over fifty professionals, seven partners and a foundation built on value added ideas and integrity.” Source: RevenueBase Database · checked Sep 21, 2026
18	Lavine, Lofgren, Morris & Engelberg, LLP	Indirect evidence	La Jolla, CA, United StatesHQ checked Sep 21, 2026	51-200	118 contacts →
	Indirect evidence “Since 1985, we’ve built a firm where clients receive the highest quality of services, where our people play an important role as they grow professionally and where we as a firm…” Source: RevenueBase Database · checked Sep 21, 2026
19	Henry & Peters, P.C	Partial evidence	Tyler, TX, United StatesHQ checked Sep 21, 2026	51-200	115 contacts →
	Partial evidence “For over 90 years, Henry & Peters has provided comprehensive accounting services with a depth of experience in Oil & Gas, Healthcare, Engineering, Construction, Small Business…” Source: RevenueBase Database · checked Sep 21, 2026
20	Crystalvoxx LLC Accounting Services	Partial evidence	Dallas, TX, United StatesHQ checked Sep 21, 2026	51-200	108 contacts →
	Partial evidence “CrystalVoxx offers a wide range of accounting and payroll services to suit diverse customer needs [Accounting & Payroll, EMR Integrated Transcription, Revenue Cycle Management,].” Source: RevenueBase Database · checked Sep 21, 2026
21	D'arcangelo & Co., LLP	Partial evidence	Utica, NY, United StatesHQ checked Sep 21, 2026	51-200	103 contacts →
	Partial evidence “Bringing our clients over 70 years of dedicated experience and service, D'Arcangelo & Co, LLP offers our clients a distinct difference through unsurpassed accounting, auditing…” Source: RevenueBase Database · checked Sep 21, 2026
22	Belfint, Lyons & Shuman, P.A	Strong evidence	Wilmington, DE, United StatesHQ checked Sep 21, 2026	51-200	102 contacts →
	Strong evidence “Belfint, Lyons & Shuman (BLS) is an accounting firm dedicated to serving businesses, nonprofits, estates, and trusts in Delaware, Pennsylvania and beyond.” Source: RevenueBase Database · checked Sep 21, 2026
23	Considine & Considine	Partial evidence	San Diego, CA, United StatesHQ checked Sep 21, 2026	51-200	102 contacts →
	Partial evidence “We offer a multitude of services ranging from traditional compilations, audits, reviews and tax returns, to other specialties, such as personal financial planning, retirement plan…” Source: RevenueBase Database · checked Sep 21, 2026
24	B.T. Bryan Accounting, INC	Partial evidence	Palatine, United StatesHQ checked Sep 21, 2026	n/a	101 contacts →
	Partial evidence “We specialize in accounting services for small and family-owned businesses-serving as the perfect extension of your company’s financial team.” Source: RevenueBase Database · checked Sep 21, 2026
25	Snyder Cohn	Partial evidence	North Bethesda, MD, United StatesHQ checked Sep 21, 2026	51-200	100 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: nonprofit accounting and tax prep services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names nonprofit accounting and tax prep services.
Partial evidence: Its own public description names part of nonprofit accounting and tax prep services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name nonprofit accounting and tax prep services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 12,141 nonprofit accounting and tax prep services based in the United States

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Nonprofit accounting and tax prep services based in the United States at a glance

As of Sep 21, 2026

22.6%Verified-email coverage

9.3Average contacts per company

1-10Median size (employees)

2.1%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

9,608

11-50

2,118

51-200

264

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 12,141 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 nonprofit accounting and tax prep services, 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 the United States whose own description of what they do matches “nonprofit accounting and tax prep services”. 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 nonprofit accounting and tax prep services), 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 nonprofit accounting and tax prep services, and records with no verified work email. Companies headquartered outside United States 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, 25,619 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.

Nonprofit accounting and tax prep services by metro

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 nonprofit accounting and tax prep services, 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 nonprofit accounting and tax prep services are there based in the United States?

RevenueBase identified 12,141 nonprofit accounting and tax prep services headquartered in the 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?

H&r Block, headquartered in Kansas City, tops this list with the largest team on record.

Which city has the most nonprofit accounting and tax prep services?

New York leads with 254 headquartered companies, followed by Houston (203) and Chicago (123).

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 25,619 verified decision-maker contacts tracked across these 12,141 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.