Company lists · Data refreshed September 2026
Top 25 Large accounting firms based in Chicago, United States
RevenueBase identified 110 large accounting firms headquartered in Chicago, United States as of September 2026 and tracks 44,249 professional contacts across them, including 18,063 with verified work emails. New York is the largest hub.
This list covers large 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.
The 25 largest large accounting firms based in Chicago, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 10,078 contacts → | ||||
Indirect evidence “At BDO, our success is measured by what we achieve together.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 8,390 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,688 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 505 contacts → | ||||
Indirect evidence “Forget what you think you know about professional services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 292 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 174 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 152 contacts → | ||||
Partial evidence “CDH is an international accounting and consulting firm focused on providing 5 star service to our clients.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 148 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 115 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 11 | 94 contacts → | ||||
Partial evidence “Archer Lewis is your local trusted advisor for accounting and tax services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 44 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, 2026Thanks. The Data Team will review it. | |||||
| 13 | 36 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 14 | 31 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 15 | 29 contacts → | ||||
Partial evidence “Accounting & Tax Solutions with Excellence and Integrity.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 25 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 24 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 18 | 22 contacts → | ||||
Indirect evidence “CPA's and Business Advisers.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 20 contacts → | ||||
Indirect evidence “Ringold Financial Management Services is a privately held licensed CPA firm providing Audit, Tax and Advisory services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 17 contacts → | ||||
Partial evidence “At Tavola Group, we strive to be more than just an accounting firm but rather your partner and advocate.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 17 contacts → | ||||
Partial evidence “Lopez & Company, a full-service certified public accounting firm, has been cultivating relationships in Chicago since 2004, providing tax, audit and financial consulting support…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 14 contacts → | ||||
Indirect evidence “We're a far cry from your parent's CPA.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 13 contacts → | ||||
Indirect evidence “Morrison & Morrison, Ltd.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 12 contacts → | ||||
Indirect evidence “Founded in 2019 by Melissa Davidson and Kelly Pargman.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 11 contacts → | ||||
Partial evidence “Founded in 1922 on a commitment of outstanding service to clients, Bansley and Kiener has grown to become a regional leader in providing quality accounting, audit, tax, financial…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: large 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 large accounting firms.
- Partial evidence
- Its own public description names part of large accounting firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name large 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 110 large accounting firms based in Chicago, United States
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Large accounting firms based in Chicago, United States at a glance
As of Sep 21, 2026Companies by employee count
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 110 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 large 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 “large 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 large 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 large 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, 18,063 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.
Large accounting firms by metro in the United States
- Large accounting firms in New York245
- Large accounting firms in Houston148
- Large accounting firms in Chicago110
- Large accounting firms in Atlanta100
- Large accounting firms in Los Angeles94
- Large accounting firms in Miami90
- Large accounting firms in Dallas77
- Large accounting firms in Austin58
- Large accounting firms in San Diego57
- Large accounting firms in Orlando53
- Large accounting firms in Portland51
- Large accounting firms in San Francisco51
- Large accounting firms in Irvine47
- Large accounting firms in Denver46
- Large accounting firms in Tampa46
- Large accounting firms in Las Vegas43
- Large accounting firms in Charlotte41
- Large accounting firms in San Antonio41
- Large accounting firms in Pittsburgh40
- Large accounting firms in Indianapolis39
- Large accounting firms in Columbus37
- Large accounting firms in San Jose37
- Large accounting firms in Birmingham36
- Large accounting firms in Cincinnati36
- Large accounting firms in Boca Raton35
- Large accounting firms in Phoenix35
- Large accounting firms in Raleigh34
- Large accounting firms in Seattle33
- Large accounting firms in Washington33
- Large accounting firms in Philadelphia32
- Large accounting firms in Columbia30
- Large accounting firms in Jacksonville30
- Large accounting firms in Louisville30
- Large accounting firms in Glendale29
- Large accounting firms in Wilmington29
- Large accounting firms in Rochester28
- Large accounting firms in Albuquerque27
- Large accounting firms in Fresno27
- Large accounting firms in Nashville27
- Large accounting firms in Alexandria26
- Large accounting firms in Coral Gables26
- Large accounting firms in Greenville26
- Large accounting firms in Oklahoma City26
- Large accounting firms in Baltimore25
- Large accounting firms in Boston25
- Large accounting firms in Knoxville25
- Large accounting firms in Newport Beach25
- Large accounting firms in Salt Lake City25
- Large accounting firms in Troy25
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 large 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 large accounting firms are there based in Chicago, United States?
RevenueBase identified 110 large 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?
Baker Tilly US, headquartered in Chicago, tops this list with the largest team on record.
Which city has the most large accounting firms?
New York leads with 245 headquartered companies, followed by Houston (148) and Chicago (110).
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 18,063 verified decision-maker contacts tracked across these 110 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.
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