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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1$10,000+10 - 49 employeesChicago, IL18 Coffees is a HR Consulting company launched in 2014. They are headquartered in Chicago, Illinois and have a small team. The firm offers HR Consulting, Corporate Training & Coaching, and Business Consulting.Read More
Clients
Pandora RadioIndustries
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2$25,000+50 - 249 employeesChicago, ILRead More
Ultra Consultants, an ERP consulting and SI company, was established in 1994. The midsize Chicago, Illinois-based team specializes in ERP consulting and SI, Business Consulting, Logistics & Supply Chain Consulting, and Manufacturing Consulting.
Clients
New Balance Winnebago Crabtree & Evelyn Ltd Radio FlyerIndustries
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3$10,000+2 - 9 employeesChicago, ILRead More
SHERMAN is a PR firm located in Chicago. Founded in 2001, the team of fewer than 10 employees works with clients across industries such as healthcare and medical, real estate, and information technology. They specialize in PR, marketing strategy, and social media marketing.
Clients
The Harris PollIndustries
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4$10,000+10 - 49 employeesChicago, ILRead More
The Monogram Group is a branding agency based in Chicago. Founded in 1990, the team of 17 specializes in branding, market research, and advertising. They work with clients primarily in the financial services and manufacturing industries.
Industries
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5$25,000+10 - 49 employeesLombard, ILRead More
Red Caffeine is a growth consultancy company based in Lombard, Ill. Founded in 2011, their team of around 20 employees specializes in marketing and digital strategy.
Industries
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6$1,000+2 - 9 employeesChicago, ILRead More
Solve for (x), llc is a Fractional CFO Services company. They are located in Chicago, Illinois and have a small team. The firm offers Fractional CFO Services, Business Consulting, and Funding & Investment.
Clients
AgencyPPCIndustries
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7$1,000+2 - 9 employeesSchaumburg, ILRead More
Accounting company The 10X Accountant® is based in Schaumburg, Illinois and Algonquin, Illinois. The agency specializes in Accounting, Fractional CFO Services, and Business Consulting and is small.The agency was established in 2023.
Clients
HyperSense Software IncIndustries
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8$1,000+10 - 49 employeesChicago, ILRead More
SMBHD is a business digital solutions company based in Chicago. The company, founded in 2010, has more than 20 employees and provides CRM consulting & SI, IT managed services, cloud consulting & SI, cybersecurity to various companies.
Clients
GuidepostIndustries
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9$25,000+10 - 49 employeesOakbrook Terrace, ILLocated in Oakbrook Terrace, Illinois and Oakbrook Terrace, Illinois, LOGICON, LLC is a small Business Consulting company. They provide Business Consulting, Robotics Process Automation, API Development, BI & big data consulting & SI, and more and were founded in 2015.Read More
Industries
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10$5,000+2 - 9 employeesOak Park, ILAnchor Advisors, Ltd. Is an Oak Park, Illinois-based Corporate Training & Coaching company. The small team offers Corporate Training & Coaching and Business Consulting. The firm was founded in 2001.Read More
Clients
RefugeeOneIndustries
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11$10,000+2 - 9 employeesSchaumburg, ILRosso Recruiting is a Schaumburg, Illinois-based Recruiting company. Launched in 2021, the small team offers Recruiting, Business Consulting, Recruitment Process Outsourcing, and Executive Search.Read More
Industries
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12$5,000+2 - 9 employeesCampton Hills, ILRead More
Retail solutions agency, Retailbound has a team of more than two based in St. Charles, Ill. They have offered business consulting, marketing strategy, and other marketing solutions to various clients since their founding in 2008.
Clients
CUJOIndustries
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13$1,000+2 - 9 employeesChicago, ILRead More
University CoWork is a virtual accelerator as well as a business center from Chicago. Since 2016, their team of fewer than 10 employees mainly offers business consulting as well as digital strategy, back-office services, social media marketing, and more to small-scale companies.
Clients
Allevi8 MarketingIndustries
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14$10,000+10 - 49 employeesChicago, ILSmall branding firm JumpSeat, is based in Chicago, Illinois. Founded in 2020, the team provides Branding, Marketing Strategy, Business Consulting, Advertising, and more.Read More
Industries
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15Undisclosed10 - 49 employeesLombard, ILRead More
Catalano, Caboor & Co. is a tax preparation firm based in Lombard, Ill. Founded in 1987, their team of 35 serves clients in the IT services sector. Services include accounting and business consulting.
Industries
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16$10,000+1,000 - 9,999 employeesChicago, ILRead More
Industrie Reply is a reply group company based in Chicago and founded in 1996. With over 1000 employees, they offer CRM consulting, logistics and supply chain consulting, and warehousing and distribution solutions to various clients.
Clients
FCAIndustries
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17$75,000+50 - 249 employeesChicago, ILRead More
Established in 2002, Analytics8 is a big data company. Their midsize team is in Chicago, Illinois; Raleigh, North Carolina and Plano, Texas. Their team provides BI & big data consulting & SI, IT strategy consulting, and cloud consulting & SI.
Industries
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18$5,000+10 - 49 employeesDeerfield, ILRead More
IT Audit Group LLC is a B2B management consulting firm that focuses on IT compliance and cybersecurity. Founded in 2017 and headquartered in Deerfield, Illinois, their team of approximately 1–2 employees primarily serves midmarket clients. Their scope of services encompasses business consulting, cybersecurity, and IT strategy consulting.
Clients
Bold InsightIndustries
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19$25,000+10 - 49 employeesChicago, ILRead More
Conifer Research is a research and design agency that has been offering market research, UX/UI design, and business consulting services to their enterprise and mid-market clients in the consumer products, health care, and hospitality industries since 2001. Their team of 50 employees is based out of their office in Chicago.
Clients
McDonaldsIndustries
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20$1,000+2 - 9 employeesSkokie, ILSocial media marketing firm MA Team Marketing Agency was founded in 2016. Based in Skokie, Illinois, their small team focuses on Social Media Marketing, Web Design, Graphic Design, Advertising, and more.Read More
Clients
BrongusIndustries
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21Undisclosed250 - 999 employeesMettawa, ILRead More
ES99 is a branding company launched in 1999. They are in Chicago, Illinois and have a midsize team. Their services include branding, advertising, direct marketing, market research, and more.
Industries
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22$10,000+1,000 - 9,999 employeesChicago, ILRead More
Crowe is a public accounting, technology, and consulting firm headquartered in Westborough, Mass. with other offices in Chicago, New York City, Indianapolis, and South Bend, Ind. It was founded in 2005 and has grown rapidly to 5,304 employees who provide CRM consulting & SI, application management and support, tax and payroll preparation, and financial accounting services.
Clients
TrustmarqueIndustries
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23$50,000+2 - 9 employeesChicago, ILEightySeven is a small branding firm. They offer Branding and Business Consulting and were launched in 2012. The company is in Chicago, Illinois.Read More
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24Undisclosed10 - 49 employeesSt. Charles, ILTaylor Business Group, a Business Consulting company, was established in 2001. The team provides Business Consulting.Read More
Industries
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25$10,000+10 - 49 employeesChicago, ILFounded in 1968, SHIFT - Communication Supply Chain Solutions is a small market research company. Their team focuses on market research, marketing strategy, business consulting, search engine optimization, and more. The company is in Chicago, Illinois.Read More
Industries
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26$25,000+50 - 249 employeesEvanston, ILRead More
Big Chalk, a midsize big data company, is based in Evanston, Illinois. Founded in 2017, the team offers BI & big data consulting & SI, IT staff augmentation, digital strategy, and business consulting.
Industries
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27$10,000+2 - 9 employeesWoodridge, ILBased in Woodridge, Illinois and Berkeley Township, New Jersey, 5-3 Digital Consulting is a custom software development company. The small team provides custom software development, web development, e-commerce development, digital strategy, and more. The firm was launched in 2016.Read More
Industries
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28$10,000+2 - 9 employeesDowners Grove, ILMacon Raine, a Content Marketing company, was launched in 2010. They are headquartered in Downers Grove, Illinois and have a small team. Their services include Content Marketing, Marketing Strategy, Digital Strategy, Email Marketing, and more.Read More
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29$50,000+10 - 49 employeesOakbrook Terrace, ILSmall big data company Evolution Analytics, LLC, is headquartered in Oakbrook Terrace, Illinois and Durham, North Carolina. They offer BI & big data consulting & SI, IT strategy consulting, Business Consulting, and AI Consulting and were founded in 2021.Read More
Industries
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30Undisclosed50 - 249 employeesChicago, ILRead More
Neon One, LLC is a midsize Chicago, Illinois-based web design company and business consulting company. They specialize in web design and business consulting and were founded in 2018.
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