Company lists · Data verified August 2026

Top 17 Accounting process outsourcing providers based in Chicago, United States

Name: Accounting process outsourcing providers based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 45 companies tracked

There are 45 accounting process outsourcing providers headquartered in Chicago, United States (RevenueBase, August 2026). RevenueBase tracks 109 professional contacts across them, including 30 with verified work emails and 44 with mobile numbers. New York is the largest hub.

This list covers accounting process outsourcing providers headquartered in Chicago, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

45Companies

109Contacts tracked

30Verified emails

44Mobile numbers

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The 17 largest accounting process outsourcing providers based in Chicago, United States

Ranked by team size

Top 17 of 45 accounting process outsourcing providers based in Chicago, United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	EHS Business Solutions	Chicago, IL	1-10	7	3
2	Global Accounting LLC	Chicago, IL	1-10	5	4
3	Build Accounting	Chicago, IL	1-10	5	3
4	Flax CPA & Business Solutions	Chicago, IL	1-10	5	3
5	Fritz Financial Solutions	Chicago, IL	1-10	4	2
6	Moshe Klein & Associates	Chicago	11-50	3	1
7	Virtucount LLC	Chicago, IL	1-10	2	2
8	John Joseph Griffin, Cpa, P.C	Chicago, IL	1-10	2	2
9	Kessler COS	Chicago, IL	1-10	2	2
10	Plus Bookkeeping Services, INC	Chicago, IL	1-10	2	1
11	Rnfg Bookkeeping And Controllership	Chicago, IL	51-200	1	1
12	True CFO	Chicago, IL	11-50	1	1
13	Compass Rose Accounting, LLC	Chicago, IL	1-10	1	1
14	Treadwell Consulting Group	Chicago, IL	1-10	1	1
15	Flores CPA & Associates	Chicago, IL	1-10	1	1
16	Bea2b Services Corp	Chicago, IL	1-10	1	1
17	ONE Accountant By MAK Bookkeeping, INC	Chicago, IL	1-10	1	1

Showing 17 of 45 accounting process outsourcing providers based in Chicago, United States

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Accounting process outsourcing providers based in Chicago, United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 130 HQs

44Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Accounting process outsourcing providers by metro in the United States

Metro	Companies
Accounting process outsourcing providers in New York	130
Accounting process outsourcing providers in Houston	88
Accounting process outsourcing providers in Los Angeles	79
Accounting process outsourcing providers in Austin	60
Accounting process outsourcing providers in Dallas	53
Accounting process outsourcing providers in San Diego	48
Accounting process outsourcing providers in Chicago	45

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “accounting process outsourcing providers”, with match quality audited by blind human judging, and headquartered in Chicago, United States.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many accounting process outsourcing providers are there based in Chicago, United States?

There are 45 accounting process outsourcing providers headquartered in Chicago, United States as of August 2026 (RevenueBase).

What is the largest company on this list?

EHS Business Solutions, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most accounting process outsourcing providers?

New York leads with 130 headquartered companies, followed by Houston (88) and Los Angeles (79).

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 30 verified decision-maker contacts tracked across these 45 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.