Company lists · Data refreshed September 2026

Top 25 Business formation and accounting firms based in the United States

Name: Business formation and accounting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 15,223 companies tracked

RevenueBase identified 15,223 business formation and accounting firms headquartered in the United States as of September 2026 and tracks 92,833 professional contacts across them, including 39,940 with verified work emails and 38,183 with mobile numbers. New York is the largest hub.

This list covers business formation and accounting firms 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 28, 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 28, 2026 86% judged on-target in blind review

15,223Companies

92,833Contacts tracked

39,940Verified emails

38,183Mobile numbers

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The 25 largest business formation and accounting firms based in the United States

Ranked by team size

Top 25 of 15,223 business formation and accounting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to business formation and accounting firms: 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	Lga, LLP	Indirect evidence	Woburn, MA, United StatesHQ checked Sep 28, 2026	51-200	207 contacts →
	Indirect evidence “LGA, LLP is an independent, full-service CPA and Business Advisory firm with over 45 years of experience in delivering financial focus to businesses.” Source: RevenueBase Database · checked Sep 28, 2026
2	Ketel Thorstenson, LLP	Partial evidence	Rapid City, SD, United StatesHQ checked Sep 28, 2026	51-200	141 contacts →
	Partial evidence “Ketel Thorstenson, LLP, is a full-service accounting firm rich in history, serving clients since 1936.” Source: RevenueBase Database · checked Sep 28, 2026
3	Wegmann Dazet	Indirect evidence	Metairie, LA, United StatesHQ checked Sep 28, 2026	51-200	96 contacts →
	Indirect evidence “Known as the Entrepreneur’s CPA, Wegmann Dazet is one of the largest locally owned CPA/Business Advisory firms based in the Gulf South.” Source: RevenueBase Database · checked Sep 28, 2026
4	Matthews, Carter & Boyce, P.C	Partial evidence	Fairfax, VA, United StatesHQ checked Sep 28, 2026	51-200	95 contacts →
	Partial evidence “MCB is a full-service accounting firm celebrating nearly 80 very independent years of business in the Washington, DC metro area.” Source: RevenueBase Database · checked Sep 28, 2026
5	Acuity Accounting	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	51-200	89 contacts →
	Partial evidence “Acuity is the modern-day accounting organization built specifically for startups and small businesses.” Source: RevenueBase Database · checked Sep 28, 2026
6	Williams & Company PC	Partial evidence	Sioux City, IA, United StatesHQ checked Sep 28, 2026	51-200	80 contacts →
	Partial evidence “Williams & Company PC is a major regional firm in the Midwest offering a wide range of public accounting services to businesses, individuals, not-for-profits and governmental…” Source: RevenueBase Database · checked Sep 28, 2026
7	SFW Partners, LLC	Partial evidence	St. Louis, MO, United StatesHQ checked Sep 28, 2026	51-200	76 contacts →
	Partial evidence “The Mission of SFW Partners, LLC is to be a highly respected, ethically guided certified public accounting firm serving as a trusted business advisor to our clients while…” Source: RevenueBase Database · checked Sep 28, 2026
8	LAZO	Indirect evidence	Miami, FL, United StatesHQ checked Sep 28, 2026	11-50	76 contacts →
	Indirect evidence “Lazo is the partner that keeps your startup grounded while everything moves fast.” Source: RevenueBase Database · checked Sep 28, 2026
9	GBS Group	Indirect evidence	Miramar, FL, United StatesHQ checked Sep 28, 2026	11-50	76 contacts →
	Indirect evidence “GBS Group is a business consultancy team offering comprehensive advice across multiple business areas.” Source: RevenueBase Database · checked Sep 28, 2026
10	Rudler,psc	Partial evidence	Fort Wright, KY, United StatesHQ checked Sep 28, 2026	51-200	73 contacts →
	Partial evidence “Pursue Your Vision Rudler, PSC is a full-service public accounting, tax, compliance and business management advisory firm with special services in business valuations, employee…” Source: RevenueBase Database · checked Sep 28, 2026
11	Brown Armstrong Cpas	Indirect evidence	Bakersfield, CA, United StatesHQ checked Sep 28, 2026	51-200	67 contacts →
	Indirect evidence “As accountants, we know the importance of numbers, but we’re also smart enough to know that there is more to managing your financials than that.” Source: RevenueBase Database · checked Sep 28, 2026
12	Widmer Roel	Indirect evidence	Fargo, ND, United StatesHQ checked Sep 28, 2026	11-50	63 contacts →
	Indirect evidence “Widmer Roel is a professional corporation of certified public accountants located in Fargo, North Dakota.” Source: RevenueBase Database · checked Sep 28, 2026
13	Weinlander Fitzhugh Cpas	Partial evidence	Bay City, MI, United StatesHQ checked Sep 28, 2026	51-200	63 contacts →
	Partial evidence “Opening its doors in 1944, Weinlander Fitzhugh is a full-service accounting and financial consulting firm with locations in Bay City, Clare, Gladwin and West Branch, Michigan.” Source: RevenueBase Database · checked Sep 28, 2026
14	Brand Sonnenschine LLP	Partial evidence	Brooklyn, United StatesHQ checked Sep 28, 2026	51-200	55 contacts →
	Partial evidence “Brand Sonnenschine LLP provides corporate and personal accounting, tax, and consulting services to businesses across the country.” Source: RevenueBase Database · checked Sep 28, 2026
15	Payne, Nickles & Company	Partial evidence	Norwalk, OH, United StatesHQ checked Sep 28, 2026	11-50	53 contacts →
	Partial evidence “Payne, Nickles & Company is full service accounting and business advisory firm.” Source: RevenueBase Database · checked Sep 28, 2026
16	Bt&co., P.A	Partial evidence	Topeka, KS, United StatesHQ checked Sep 28, 2026	51-200	51 contacts →
	Partial evidence “Founded in 1913, BT & Co, P.A.(BT & Co.) has grown to become one of the largest independent public accounting firms in Northeast Kansas.” Source: RevenueBase Database · checked Sep 28, 2026
17	Acru Solutions	Partial evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	11-50	50 contacts →
	Partial evidence “Accounting delivered: accurately, stress-free, with excellence.” Source: RevenueBase Database · checked Sep 28, 2026
18	Insight Accounting Group PC	Indirect evidence	Goshen, IN, United StatesHQ checked Sep 28, 2026	11-50	49 contacts →
	Indirect evidence “What is Insight?” Source: RevenueBase Database · checked Sep 28, 2026
19	Oliver, Rainey & Wojtek, LLP	Partial evidence	San Angelo, TX, United StatesHQ checked Sep 28, 2026	11-50	48 contacts →
	Partial evidence “Established in 1979, Oliver, Rainey, & Wojtek is a medium-sized, local professional accounting firm with locations in San Angelo and Burnet, Texas.” Source: RevenueBase Database · checked Sep 28, 2026
20	Heffler, Radetich & Saitta LLP	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	11-50	47 contacts →
	Partial evidence “Heffler, Radetich & Saitta LLP, is a full-service certified public accounting and consulting firm, serving a nationwide clientele comprised of high net worth individuals…” Source: RevenueBase Database · checked Sep 28, 2026
21	Whaley Hammonds, P.C	Indirect evidence	Mcdonough, GA, United StatesHQ checked Sep 28, 2026	11-50	42 contacts →
	Indirect evidence “As highly credentialed CPAs, we are your trusted advisor, your go-to source for solutions, your confidant, advocate and partner.” Source: RevenueBase Database · checked Sep 28, 2026
22	Pasquesi Sheppard LLC	Partial evidence	Lake Forest, IL, United StatesHQ checked Sep 28, 2026	11-50	41 contacts →
	Partial evidence “Pasquesi Sheppard LLC is a well established public accounting firm, located in downtown Lake Forest.” Source: RevenueBase Database · checked Sep 28, 2026
23	Carter, P.C	Partial evidence	Asheville, NC, United StatesHQ checked Sep 28, 2026	11-50	39 contacts →
	Partial evidence “Carter is a full service accounting firm based on highly personalized client service in the areas of tax, assurance, and accounting.” Source: RevenueBase Database · checked Sep 28, 2026
24	Cullen & Danowski, LLP	Indirect evidence	Port Jefferson Station, NY, United StatesHQ checked Sep 28, 2026	11-50	39 contacts →
	Indirect evidence “Cullen & Danowski, LLP (Firm) is a firm of certified public accountants licensed in the state of New York, serving the New York and metropolitan area for over thirty years.” Source: RevenueBase Database · checked Sep 28, 2026
25	Arledge	Partial evidence	Oklahoma City, OK, United StatesHQ checked Sep 28, 2026	11-50	37 contacts →
	Partial evidence “Arledge & Associates is one of Oklahoma’s most respected accounting firms.” Source: RevenueBase Database · checked Sep 28, 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: business formation and accounting firms. 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 business formation and accounting firms.
Partial evidence: Its own public description names part of business formation and accounting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business formation and accounting firms. 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 15,223 business formation and accounting firms based in the United States

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Business formation and accounting firms based in the United States at a glance

As of Sep 28, 2026

43.0%Verified-email coverage

41.1%Mobile-number coverage

6.1Average contacts per company

1-10Median size (employees)

2.2%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11,223

11-50

3,317

51-200

509

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 31.0d

18,9940–30

18,18731–60

1,13361–90

4390–180

144180+

Company record updated

Median 91.0d

00–30

20,33431–60

20,86161–90

41,29490–180

5,434180+

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 business formation and accounting firms, 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 “business formation and accounting firms”. 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 business formation and accounting firms), 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 business formation and accounting firms, 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, 39,940 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 28, 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.

Business formation and accounting firms 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 business formation and accounting firms, 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 business formation and accounting firms are there based in the United States?

RevenueBase identified 15,223 business formation and accounting firms 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?

Lga, LLP, headquartered in Woburn, tops this list with the largest team on record.

Which city has the most business formation and accounting firms?

New York leads with 336 headquartered companies, followed by Houston (269) and Miami (171).

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 39,940 verified decision-maker contacts tracked across these 15,223 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 28, 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.