Top 100 Business Consulting Companies in Illinois
The Best of February 2026Looking for a top consulting firm in Illinois?
Consulting firms provide in-depth knowledge and understanding in relation to the client’s industry, technology, and processes. Having this kind of business partner empowers companies to make the best decisions for the business. They provide technical and corporate assistance, helping you resolve your challenges regardless of the industry you’re in.
Consulting firms provide a wide range of services, from creating business strategies to solidifying operational processes. Take your company to the next level by partnering with a firm today. Their knowledge and expertise are valuable assets for every business.
To assist you in your search for a partner, we’ve compiled this list of the top consulting companies in Illinois. Browse descriptions, feedback, and awards to find which can best suit your company’s needs.
List of the Best Illinois Business Consulting Firms
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631Undisclosed10 - 49 employeesChicago, ILWindgate Wealth Management, a small Commercial Financing company, is in Chicago, Illinois. The team specializes in Commercial Financing and Business Consulting.Read More
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632Undisclosed10 - 49 employeesDowners Grove, ILFounded in 1995, Hegemony Consulting Group is a software development company. The agency provides Custom Software Development and BI & big data consulting & SI, and is small.Read More
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633Undisclosed10 - 49 employeesGeneva, ILThe Marketing Group Inc. Is a Business Consulting company. The Geneva, Illinois-based agency was founded in 2010. Their services include Business Consulting and Logo.Read More
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634Undisclosed10 - 49 employeesWestchester, ILIvory Financial Services, Inc is an Accounting company. Their small team is headquartered in Westchester, Illinois. Their team specializes in Accounting and Business Consulting.Read More
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635Undisclosed50 - 249 employeesSpringfield, ILHeadquartered in Springfield, Illinois, Disrupting Ads is a Business Consulting company. The team specializes in Business Consulting and Advertising.Read More
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636Undisclosed50 - 249 employeesRockford, ILFurst Group is a midsize Executive Search company based in Rockford, Illinois and Phoenix, Arizona. The team specializes in Executive Search and Business Consulting.Read More
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637$1,000+2 - 9 employeesChicago, ILHeadquartered in Chicago, Illinois, Prosper Strategies is a Marketing Strategy company. Launched in 2012, the team provides Marketing Strategy and Search Engine Optimization.Read More
Industries
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638Undisclosed2 - 9 employeesChicago, ILAdvertising company Birk Creative is in Chicago, Illinois. They focus on Advertising and Branding.Read More
Industries
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639Undisclosed2 - 9 employeesPeoria, ILAdvertising company Central States Media was founded in 2003. The team provides Advertising and Event Marketing and is based in Peoria, Illinois.Read More
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640Undisclosed2 - 9 employeesChampaign, ILArtotems Co., an Advertising company, is in Champaign, Illinois. The team specializes in Advertising and Corporate Photography.Read More
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641Undisclosed2 - 9 employeesPeoria, ILFounded in 2015, Isaana Tax LLC is a small Peoria, Illinois-based Accounting company. Their team focuses on Accounting and cloud consulting & SI.Read More
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642Undisclosed2 - 9 employeesChicago, ILA.M. Accounting & Taxes, Inc. Is an Accounting company. Established in 1994, the team focuses on Accounting and Financial Consulting. The agency is in Chicago, Illinois.Read More
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643Undisclosed2 - 9 employeesGlen Ellyn, ILWesley Financial Management, a small business consulting and financial advising & planning company, is headquartered in Glen Ellyn, Illinois. The team specializes in business consulting and financial advising & planning.Read More
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644Undisclosed2 - 9 employeesChicago, ILUrban Financial Advisory Corporation is a Chicago, Illinois-based Commercial Financing company. They specialize in Commercial Financing and Accounting.Read More
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645Undisclosed2 - 9 employeesChicago, ILFinancial Advising & Planning company Basil Financial Group specializes in Financial Advising & Planning and Accounting. They were founded in 2011.Read More
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646Undisclosed2 - 9 employeesLake Forest, ILBusiness Valuation Services company EBIT Associates, Ltd. Is located in Lake Forest, Illinois and Scottsdale, Arizona. They offer Business Valuation Services and Funding & Investment.Read More
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647Undisclosed2 - 9 employeesChicago, ILComplySAM is a big data company located in Chicago, Illinois. They provide BI & big data consulting & SI and Cybersecurity.Read More
Industries
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648Undisclosed2 - 9 employeesChicago, ILCrowley Accounting & Consulting Services is a small Chicago, Illinois-based Accounting company. The team specializes in Accounting and Business Consulting.Read More
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649Undisclosed2 - 9 employeesChicago, ILEmerging Business Solutions Group is a small Chicago, Illinois-based Accounting company. The team provides Accounting and Business Consulting.Read More
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650Undisclosed2 - 9 employeesNaperville, ILMarketing Strategy company Marketing Synergy, Inc is in Naperville, Illinois. They focus on Marketing Strategy and Social Media Marketing.Read More
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651Undisclosed2 - 9 employeesEvanston, ILFARA Commercial Group is an Evanston, Illinois-based Commercial Financing company. The team provides Commercial Financing and Commercial Brokerage Services.Read More
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652Undisclosed2 - 9 employeesChicago, ILGladys R Wilson and Associates is an Accounting company. They are based in Chicago, Illinois and have small team. Their services include Accounting and Business Consulting.Read More
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653Undisclosed2 - 9 employeesOak Park, ILLaunched in 1985, MSI Resources Inc is a Translation company. Their team offers Translation and Business Consulting.Read More
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654Undisclosed2 - 9 employeesArlington Heights, ILTaxbiz Consulting is an Accounting company. They are headquartered in Arlington Heights, Illinois and have small team. Their team offers Accounting and Business Consulting.Read More
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655Undisclosed2 - 9 employeesEdwardsville, ILLaunched in 2015, Ads To Grow Consulting is a small Business Consulting company. Their services include Business Consulting and Search Engine Optimization.Read More
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656Undisclosed2 - 9 employeesChicago, ILSmall AI Agents company The Ai Guide, LLC, is based in Chicago, Illinois. The team specializes in AI Agents and Business Consulting.Read More
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657Undisclosed10 - 49 employeesSchaumburg, ILGLM, Illinois is an Accounting company launched in 1997. The team specializes in Accounting and Business Consulting.Read More
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658Undisclosed10 - 49 employeesPalatine, ILAC Financial Services, a small Accounting company, is headquartered in Palatine, Illinois. The team focuses on Accounting and Business Consulting.Read More
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659Undisclosed10 - 49 employeesAurora, ILFeinberg & York Inc is an IT strategy consulting company. They are in Aurora, Illinois and have small team of experts. Their services include IT strategy consulting and Cybersecurity.Read More
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660Undisclosed10 - 49 employeesChicago, ILTalentRise is an Executive Search company. Their small team is headquartered in Chicago, Illinois and Buffalo, New York and provides Executive Search and Recruiting. The agency was founded in 2008.Read More
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