Company lists · Data refreshed September 2026

Top 25 Top accounting firms based in Chicago, United States

RevenueBase identified 114 top accounting firms headquartered in Chicago, United States as of September 2026 and tracks 73,537 professional contacts across them, including 33,709 with verified work emails. New York is the largest hub.

This list covers top accounting firms headquartered in Chicago, 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
114Companies
73,537Contacts tracked
33,709Verified emails
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The 25 largest top accounting firms based in Chicago, United States

Ranked by team size
Top 25 of 114 top accounting firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to top 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 202610001+19,849 contacts →

Indirect evidence

“Stay Alert: Avoid Recruitment Scams Across industries, cybercriminals are posing as company recruiters using fake job postings and employment offers to trick people into providing…”

Source: RevenueBase Database · checked Sep 21, 2026
2Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 202610001+10,534 contacts →

Indirect evidence

“Baker Tilly is a leading advisory, tax and assurance firm, providing clients with a genuine coast-to-coast and global advantage in major regions of the U.S.”

Source: RevenueBase Database · checked Sep 21, 2026
3Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 202610001+10,078 contacts →

Indirect evidence

“At BDO, our success is measured by what we achieve together.”

Source: RevenueBase Database · checked Sep 21, 2026
4Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 20265,001-10,0008,390 contacts →

Indirect evidence

“Crowe provides professional services through two separate entities: Crowe LLP delivers audit and attest services, and Crowe Advisory LLC provides tax, advisory, consulting, and…”

Source: RevenueBase Database · checked Sep 21, 2026
5Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 20265,001-10,0007,520 contacts →

Indirect evidence

“Huron is a global professional services firm that collaborates with organizations to solve complex challenges and achieve ambitious goals.”

Source: RevenueBase Database · checked Sep 21, 2026
6Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 20261,001-5,0001,688 contacts →

Indirect evidence

“Sikich offers the public and private sectors a diverse platform of professional services across consulting, technology, and compliance.”

Source: RevenueBase Database · checked Sep 21, 2026
7Strong evidenceChicago, IL, United StatesHQ checked Sep 21, 20261,001-5,0001,345 contacts →

Strong evidence

“Stout is a global advisory firm specializing in corporate finance, accounting and transaction advisory, valuation, financial disputes, claims, and investigations.”

Source: RevenueBase Database · checked Sep 21, 2026
8Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 20265,001-10,000505 contacts →

Indirect evidence

“Forget what you think you know about professional services.”

Source: RevenueBase Database · checked Sep 21, 2026
9Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 2026201-500292 contacts →

Indirect evidence

“FGMK is a leading professional services firm providing assurance, tax and advisory services to privately held businesses, global public companies, entrepreneurs, high-net-worth…”

Source: RevenueBase Database · checked Sep 21, 2026
10Strong evidenceChicago, IL, United StatesHQ checked Sep 21, 202651-200174 contacts →

Strong evidence

“Topel Forman is a Chicago and Denver-based certified public accounting firm serving individuals and professionals to family-owned businesses and corporations, providing…”

Source: RevenueBase Database · checked Sep 21, 2026
11Strong evidenceChicago, IL, United StatesHQ checked Sep 21, 202651-200152 contacts →

Strong evidence

“CDH is an international accounting and consulting firm focused on providing 5 star service to our clients.”

Source: RevenueBase Database · checked Sep 21, 2026
12Strong evidenceChicago, IL, United StatesHQ checked Sep 21, 202651-200148 contacts →

Strong evidence

“Consistently voted as one of the Top 25 Accounting Firms by Crains, ORBA is a certified public accounting and financial advisory firm where individuals and stakeholders of small…”

Source: RevenueBase Database · checked Sep 21, 2026
13Strong evidenceChicago, IL, United StatesHQ checked Sep 21, 2026201-500115 contacts →

Strong evidence

“Prosperity Partners (“Prosperity”) is a Chicago-headquartered public accounting firm offering best-in-class tax, accounting, and personal finance services to dynamic businesses…”

Source: RevenueBase Database · checked Sep 21, 2026
14Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 202651-200102 contacts →

Indirect evidence

“R&M is a boutique consulting firm that works in two key areas: tax and internal audit.”

Source: RevenueBase Database · checked Sep 21, 2026
15Strong evidenceChicago, IL, United StatesHQ checked Sep 21, 2026501-1,00094 contacts →

Strong evidence

“Archer Lewis is your local trusted advisor for accounting and tax services.”

Source: RevenueBase Database · checked Sep 21, 2026
16Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 202651-20072 contacts →

Indirect evidence

“Bostrom is a professional services firm offering comprehensive management, consulting and outsourcing to the not-for-profit community.”

Source: RevenueBase Database · checked Sep 21, 2026
17Indirect evidenceChicago, United StatesHQ checked Sep 21, 202651-20044 contacts →

Indirect evidence

“A Chartered Accountancy firm established in 1950, M Mehta & Company is a progressive firm that runs on the mettle of 54 certified professionals.”

Source: RevenueBase Database · checked Sep 21, 2026
18Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 202611-5042 contacts →

Indirect evidence

“Bronswick Benjamin does not see your business or you as a series of tasks.”

Source: RevenueBase Database · checked Sep 21, 2026
19Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 2026n/a38 contacts →

Indirect evidence

“At Navigant, we help you take control of your future.”

Source: RevenueBase Database · checked Sep 21, 2026
20Strong evidenceChicago, IL, United StatesHQ checked Sep 21, 202611-5036 contacts →

Strong evidence

“ADELFIA LLC (the Company) was formed by a group of individuals who possess a wealth of accounting, auditing and industry experience especially in the public sector market, private…”

Source: RevenueBase Database · checked Sep 21, 2026
21Strong evidenceChicago, IL, United StatesHQ checked Sep 21, 202611-5031 contacts →

Strong evidence

“We empower financial growth by offering consumers and businesses a high level of auditing, accounting and tax services with a personal approach and rapid turnaround time.”

Source: RevenueBase Database · checked Sep 21, 2026
22Strong evidenceChicago, IL, United StatesHQ checked Sep 21, 202611-5029 contacts →

Strong evidence

“International Management Solutions, Inc (IMS) is an accounting, tax and consulting firm dedicated to assisting European Companies setting up in the USA.”

Source: RevenueBase Database · checked Sep 21, 2026
23Strong evidenceChicago, IL, United StatesHQ checked Sep 21, 202611-5029 contacts →

Strong evidence

Accounting & Tax Solutions with Excellence and Integrity.”

Source: RevenueBase Database · checked Sep 21, 2026
24Indirect evidenceChicago, IL, United StatesHQ checked Sep 21, 202611-5025 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 21, 2026
25Strong evidenceChicago, IL, United StatesHQ checked Sep 21, 202611-5024 contacts →

Strong evidence

“Established in 1990, Prado & Renteria is the largest Hispanic and woman-owned Public Accounting firm in the State of Illinois, providing services, nationally and internationally.”

Source: RevenueBase Database · checked Sep 21, 2026

Showing 25 of 114 top accounting firms based in Chicago, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 33,709 reachable decision-makers.

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Top accounting firms based in Chicago, United States at a glance

As of Sep 21, 2026
45.8%Verified-email coverage
645.1Average contacts per company
11-50Median size (employees)
198.2%Largest-city concentration · New York
Sep 21, 2026Page data refreshed

Companies by employee count

1-10
52
11-50
34
51-200
12
201-500
3
501-1,000
1
1,001-5,000
4
5,001-10,000
5
10001+
3

Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 114 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 top 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 Chicago, United States whose own description of what they do matches “top 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 top 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 top accounting firms, and records with no verified work email. Companies headquartered outside Chicago 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, 33,709 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.

Top accounting firms 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 top 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 top accounting firms are there based in Chicago, United States?

RevenueBase identified 114 top accounting firms headquartered in Chicago, 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?

RSM US LLP, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most top accounting firms?

New York leads with 226 headquartered companies, followed by Houston (155) and Chicago (114).

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 33,709 verified decision-maker contacts tracked across these 114 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.