Company lists · Data refreshed September 2026
Top 25 Accounting process outsourcing firms based in Chicago, United States
RevenueBase identified 52 accounting process outsourcing firms headquartered in Chicago, United States as of September 2026 and tracks 407 professional contacts across them, including 156 with verified work emails. New York is the largest hub.
This list covers accounting process outsourcing 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 27, 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 accounting process outsourcing firms based in Chicago, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 239 contacts → | ||||
Partial evidence “FinAdvantage is a tech-powered boutique finance and accounting operations firm offering a full suite of services for over a decade.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 21 contacts → | ||||
Partial evidence “At Fiscal Advocate, we specialize in tech-enabled financial planning and analysis (FP & A), bookkeeping, and accounting services tailored for professional service firms.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 18 contacts → | ||||
Partial evidence “WHAT WE DO: We help ambitious CPAs / Bookkeeping Firms / Tax Prep Firms grow their business with profit-enhancing, scaleable processing services & implement highly cost effective…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 8 contacts → | ||||
Partial evidence “Restaurant Accounting Experts” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 8 contacts → | ||||
Partial evidence “Khulas is a Chicago-based accounting firm dedicated to helping early-stage companies achieve their goals.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 5 contacts → | ||||
Partial evidence “Global Accounting is a new age completely remote accounting and bookkeeping services company.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 5 contacts → | ||||
Indirect evidence “Our services are designed to help business owners save time and money.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 5 contacts → | ||||
Partial evidence “Build Accounting is founded on the belief that there is only one important customer.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 4 contacts → | ||||
Strong evidence “Dream Source Solutions is an accounting outsourcing and consultancy focused on modernizing our clients accounting through PEOPLE, PROCESS, and AI enabled TECHNOLOGY.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 4 contacts → | ||||
Indirect evidence “When financial accountability is missing, even the best business idea can be put at risk.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 4 contacts → | ||||
Strong evidence “Gladys R Wilson, and Associates is a full service CPA firm in Chicago, IL offering tax, accounting auditing, internal audit outsourcing, fiscal training, and business consulting.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 3 contacts → | ||||
Partial evidence “Farmer CPA is a team of accounting professionals dedicated to helping businesses of any size find financial balance.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 3 contacts → | ||||
Indirect evidence “Remote Controller® specializes in turnkey back-office management and execution.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 2 contacts → | ||||
Indirect evidence “Kessler Companies understands the challenges faced by small and medium-sized businesses in an ever-changing economic landscape.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 2 contacts → | ||||
Partial evidence “We offer the flexibility to create a package of accounting services, custom made to match the reporting requirements of your particular business.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2 contacts → | ||||
Indirect evidence “Our mission is to help clients manage their financial books and records as well as providing products that help recognize cost reduction for a number of expense categories.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 contacts → | ||||
Indirect evidence “It's October and tax season is beginning.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 2 contacts → | ||||
Partial evidence “100% virtual organization focused on simplifying your small business accounting so you can focus on growth.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 2 contacts → | ||||
Partial evidence “Most small businesses fail because of poor accounting.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1 contacts → | ||||
Partial evidence “Growing companies face a challenge: For you to stay focused on building your business, you need solid financial management with a dependable accounting function-a resource you may…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 contacts → | ||||
Indirect evidence “Helping Nonprofit Organizations maintain and interpret their financial records so they can more effectively serve their community.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Partial evidence “Real Finance Group LLC brings over 25 years of experience providing accounting and Tax services to entrepreneurs and businesses who are seeking to increase capacity or streamline…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Partial evidence “Our Mission is: To utilize advanced technologies, accounting business tools, and frameworks to empower aspiring small business owners and entrepreneurs.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Partial evidence “Flores CPA & Associates - Accounting Tax & Finance is a business service firm dedicated to assisting small businesses and middle market companies with their: · Accounting /…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 27, 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: accounting process outsourcing 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 accounting process outsourcing firms.
- Partial evidence
- Its own public description names part of accounting process outsourcing firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name accounting process outsourcing 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 52 accounting process outsourcing firms based in Chicago, United States
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Accounting process outsourcing firms based in Chicago, United States at a glance
As of Sep 27, 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 52 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 accounting process outsourcing 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 “accounting process outsourcing 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 accounting process outsourcing 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 accounting process outsourcing 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, 156 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 27, 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.
Accounting process outsourcing firms by metro in the United States
- Accounting process outsourcing firms in New York145
- Accounting process outsourcing firms in Houston99
- Accounting process outsourcing firms in Los Angeles92
- Accounting process outsourcing firms in Austin73
- Accounting process outsourcing firms in San Diego61
- Accounting process outsourcing firms in Dallas58
- Accounting process outsourcing firms in Atlanta57
- Accounting process outsourcing firms in Miami56
- Accounting process outsourcing firms in Chicago52
- Accounting process outsourcing firms in Denver49
- Accounting process outsourcing firms in Phoenix41
- Accounting process outsourcing firms in Portland37
- Accounting process outsourcing firms in Tampa37
- Accounting process outsourcing firms in Sheridan36
- Accounting process outsourcing firms in Orlando35
- Accounting process outsourcing firms in San Francisco35
- Accounting process outsourcing firms in Charlotte32
- Accounting process outsourcing firms in Seattle29
- Accounting process outsourcing firms in Las Vegas27
- Accounting process outsourcing firms in San Antonio27
- Accounting process outsourcing firms in Washington27
- Accounting process outsourcing firms in Minneapolis26
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 accounting process outsourcing 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 accounting process outsourcing firms are there based in Chicago, United States?
RevenueBase identified 52 accounting process outsourcing 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?
Finadvantage, headquartered in Chicago, tops this list with the largest team on record.
Which city has the most accounting process outsourcing firms?
New York leads with 145 headquartered companies, followed by Houston (99) and Los Angeles (92).
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 156 verified decision-maker contacts tracked across these 52 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 27, 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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