Top 100 Business Consulting Companies in Illinois
The Best of December 2025Looking 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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91$1,000+50 - 249 employeesOak Brook, ILIntellectual Property Law company Trademark Dynasty is located in Oak Brook, Illinois. The midsize team provides Intellectual Property Law, Business Consulting, and Corporate Law. The agency was founded in 2020.Read More
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92Undisclosed50 - 249 employeesChicago, ILMessina Group Consulting is an IT strategy consulting company founded in 2013. Their services include IT strategy consulting and Business Consulting.Read More
Industries
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93Undisclosed10 - 49 employeesGlenview, ILDeeta Analytics, an IT managed services company, is headquartered in Glenview, Illinois. They provide IT managed services and E-Commerce Development and were established in 2015.Read More
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94$1,000+2 - 9 employeesChicago, ILMALONE MEDIA is a video production agency. Their team is located in Chicago, Illinois and Boston, Massachusetts. The agency offers Video Production and Broadcast Video.Read More
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95$1,000+2 - 9 employeesChampaign, ILRDB Certified Public Accountants is an Accounting company. They were launched in 2018 and offer Accounting and Finance & Accounting Outsourcing (FAO).Read More
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96$1,000+50 - 249 employeesChicago, ILBrilliant is a Business Consulting company established in 2009. The team provides Business Consulting and Staffing and is headquartered in Chicago, Illinois and Fort Lauderdale, Florida.Read More
Industries
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97$10,000+50 - 249 employeesChicago, IL270 Strategies is a midsize Business Consulting company. Launched in 2013, the team provides Business Consulting and Corporate Training & Coaching.Read More
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98$5,000+50 - 249 employeesChicago, ILThe Cambridge Group is a Business Consulting company. The team provides Business Consulting, and the company is in Chicago, Illinois.Read More
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99Undisclosed10 - 49 employeesChicago, ILEstablished in 1994, The Family Business Consulting Group is a Business Consulting company. The firm provides Business Consulting.Read More
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100Undisclosed250 - 999 employeesChicago, ILPoint B, Inc. Is a Business Consulting company established in 1995. Their team offers Business Consulting and Marketing Strategy.Read More
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101Undisclosed10 - 49 employeesChicago, ILBusiness Consulting company Peritius Consulting, Inc. Was founded in 1989. In Chicago, Illinois, the team provides Business Consulting and Marketing Strategy.Read More
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102Undisclosed250 - 999 employeesSchaumburg, ILBlockchain and Business Consulting company ITConnectUS Inc | Schaumburg | Chicago | USA offers Blockchain and Business Consulting. They are based in Schaumburg, Illinois.Read More
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103Undisclosed10 - 49 employeesBuffalo Grove, ILNRI Relocation, Inc. Is a Business Consulting company. The Buffalo Grove, Illinois-based agency was established in 1985. Their team provides Business Consulting and HR Consulting.Read More
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104Undisclosed2 - 9 employeesChicago, IL5T Sports Group is a Business Consulting company. Located in Vancouver, Canada and Chicago, Illinois, the company offers Business Consulting.Read More
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105Undisclosed10 - 49 employeesRosemont, ILSmall Business Consulting company Insight Consulting Group, is in Rosemont, Illinois. The team specializes in Business Consulting and Market Research.Read More
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106Undisclosed10 - 49 employeesChicago, ILStrategos is a small Business Consulting company founded in 1995. Their services include Business Consulting.Read More
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107Undisclosed2 - 9 employeesChicago, ILKoltin Consulting Group, Inc. Is a Business Consulting company. They are in Chicago, Illinois and have small team. They specialize in Business Consulting.Read More
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108Undisclosed50 - 249 employeesChicago, ILLaunched in 2008, AArete is a Business Consulting company. The team provides Business Consulting.Read More
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109Undisclosed10 - 49 employeesChicago, ILStrategic Talent Solutions is a Business Consulting company. They are headquartered in Chicago, Illinois and have small team. They focus on Business Consulting.Read More
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110Undisclosed50 - 249 employeesChicago, ILBusiness Consulting company Doblin is headquartered in Chicago, Illinois. The team provides Business Consulting.Read More
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111Undisclosed10 - 49 employeesChicago, ILClareo is a Business Consulting company. The Chicago, Illinois-based company provides Business Consulting.Read More
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112Undisclosed50 - 249 employeesChicago, ILFounded in 2003, Phoenix Business Solutions is a midsize Chicago, Illinois-based Business Consulting company. Their services include Business Consulting.Read More
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113Undisclosed2 - 9 employeesAurora, ILEstablished in 1965, Bakers Marketing Group is a Business Consulting company. The team focuses on Business Consulting.Read More
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114Undisclosed250 - 999 employeesAurora, ILBusiness Consulting company Groundwater & Environmental Services, Inc. Focuses on Business Consulting. They are located in Aurora, Illinois.Read More
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115Undisclosed50 - 249 employeesAurora, ILEverest Solutions Inc. Is a Business Consulting company. Launched in 1992, their team focuses on Business Consulting.Read More
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116Undisclosed10 - 49 employeesAurora, ILThe Carlson Group is a Business Consulting company headquartered in Aurora, Illinois. The team provides Business Consulting and Graphic Design.Read More
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117Undisclosed2 - 9 employeesAurora, ILUnified Engineering Inc. Is a small Business Consulting company based in Aurora, Illinois. The team provides Business Consulting.Read More
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118Undisclosed2 - 9 employeesAurora, ILBusiness Consulting company K+L Storytellers was founded in 2016. The agency provides Business Consulting.Read More
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119Undisclosed2 - 9 employeesNaperville, ILGonser Gerber is a small Business Consulting company. They specialize in Business Consulting and were established in 1950.Read More
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120Undisclosed2 - 9 employeesNaperville, ILFounded in 2008, Sales Kitchen is a Business Consulting company. Their team offers Business Consulting.Read More
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