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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241Undisclosed10 - 49 employeesChicago, ILMeridian Compensation Partners, LLC is a small Business Consulting and HR Consulting company based in Chicago, Illinois. Their services include Business Consulting and HR Consulting.Read More
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242Undisclosed10 - 49 employeesHomewood, ILSmall Business Consulting company iFranchise Group, is located in Homewood, Illinois and Irvine, California. The team specializes in Business Consulting and Marketing Strategy.Read More
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243Undisclosed10 - 49 employeesBartlett, ILROI Business Services, LLC is an Accounting and Business Consulting company. They offer Accounting and Business Consulting and are in Bartlett, Illinois.Read More
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244Undisclosed10 - 49 employeesAntioch, ILLaunched in 1964, James Hamlin & Co., P.C. Is a small Antioch, Illinois-based Accounting and Business Consulting company. Their team focuses on Accounting and Business Consulting.Read More
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245Undisclosed10 - 49 employeesChicago, ILH. G. JONES & ASSOCIATES, INC. Is a Corporate Training & Coaching and Business Consulting company. Launched in 2002, their team specializes in Corporate Training & Coaching and Business Consulting.Read More
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246Undisclosed10 - 49 employeesChicago, ILApplied Real Estate Analysis (AREA), Inc. Is a Chicago, Illinois-based Business Consulting company. The team offers Business Consulting and Commercial Development.Read More
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247Undisclosed10 - 49 employeesChicago, ILInQUEST Consulting is a small Business Consulting and Corporate Training & Coaching company established in 2011. Their services include Business Consulting and Corporate Training & Coaching.Read More
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248Undisclosed10 - 49 employeesSpringfield, ILREM Services, Inc. Is a Business Consulting and Staffing company. They are based in Houston, Texas and Springfield, Illinois, and their services include Business Consulting and Staffing.Read More
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249$1,000+50 - 249 employeesChicago, ILTrademark Leader is an Intellectual Property Law company. Launched in 2022, the firm is headquartered in Chicago, Illinois. Their services include Intellectual Property Law and Business Consulting.Read More
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250Undisclosed2 - 9 employeesEvanston, ILNEBULACLOUD is an other IT consulting and SI company founded in 2014. The agency specializes in other IT consulting and SI and IT managed services.Read More
Industries
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251Undisclosed10 - 49 employeesChicago, ILMarket Research company Springhill Consulting Group was founded in 2008. Located in Chicago, Illinois and Arlington, Virginia, the team offers Market Research and Marketing Strategy.Read More
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252$1,000+2 - 9 employeesChicago, ILSeekUp Strategies is a small Chicago, Illinois-based IT staff augmentation company. Their services include IT staff augmentation and Business Consulting.Read More
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253Undisclosed50 - 249 employeesNaperville, ILIn Naperville, Illinois, Prairie Consulting Services is a Business Consulting company. Founded in 1997, the team provides Business Consulting and HR Consulting.Read More
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254Undisclosed50 - 249 employeesChicago, ILM2 Property Group is a Business Consulting company located in Chicago, Illinois. They focus on Business Consulting and Commercial Brokerage Services and were founded in 2010.Read More
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255Undisclosed1,000 - 9,999 employeesChicago, ILSpencer Stuart, a Staffing company, was launched in 1956. The firm offers Staffing and Recruiting.Read More
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256Undisclosed50 - 249 employeesChicago, ILLCM Architects is a midsize Engineering company. They offer Engineering and Business Consulting and were launched in 1996.Read More
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257Undisclosed1,000 - 9,999 employeesChicago, ILAccounting company Stout Risius Ross, LLC was launched in 1991. The team offers Accounting and Business Valuation Services and is in Chicago, Illinois.Read More
Industries
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258Undisclosed50 - 249 employeesChicago, ILClaro Healthcare, a Business Consulting company, is in Chicago, Illinois. Established in 2017, the team focuses on Business Consulting and Corporate Training & Coaching.Read More
Industries
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259Undisclosed50 - 249 employeesChicago, ILLaunched in 1998, Briljent, LLC is a Content Writing Services company. Their services include Content Writing Services and Business Consulting.Read More
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260Undisclosed2 - 9 employeesChicago, ILPinnacle View Inc. Is a graphic design agency. Founded in 2017, the agency is headquartered in Alpharetta, Georgia and Chicago, Illinois. Their team focuses on Graphic Design and Marketing Strategy.Read More
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261$1,000+2 - 9 employeesPalatine, ILJRB Team is a branding agency launched in 2013. The firm specializes in Branding and Marketing Strategy, and is small.Read More
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262$5,000+2 - 9 employeesSchaumburg, IL773Designs is a web design company founded in 2018. The company provides Web Design and Web Development.Read More
Industries
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263Undisclosed250 - 999 employeesAurora, ILSoftware development company Q1 Technologies, Inc. Is headquartered in Aurora, Illinois. They provide Custom Software Development and IT managed services and were established in 2002.Read More
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264Undisclosed250 - 999 employeesChicago, ILSilvr Lining Group - A Spaulding Ridge Company, a cloud consulting & SI company, was founded in 2017. The midsize team specializes in cloud consulting & SI and CRM consulting and SI.Read More
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265$1,000+2 - 9 employeesWest Chicago, ILFounded in 2018, Accrue Agency is a Marketing Strategy company. The team offers Marketing Strategy and Advertising and is in West Chicago, Illinois.Read More
Industries
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266Undisclosed2 - 9 employeesGlen Ellyn, ILGrotto Marketing is a Glen Ellyn, Illinois-based Content Marketing company. The team offers Content Marketing and Digital Strategy.Read More
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267$1,000+2 - 9 employeesChicago, ILFission, a small Other Marketing company, is located in Chicago, Illinois. The team specializes in Other Marketing and Marketing Strategy.Read More
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268Undisclosed2 - 9 employeesChicago, ILO-H Community Partners is a Business Consulting company based in Chicago, Illinois. Founded in 2004, the team provides Business Consulting and unified communications consulting & SI.Read More
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269Undisclosed2 - 9 employeesRockford, ILThinker Ventures is a small Business Consulting company launched in 2011. Their team offers Business Consulting and Branding.Read More
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270Undisclosed2 - 9 employeesMundelein, ILRowe-Thrush, Inc., a Business Consulting and Market Research company, was launched in 1940. The agency focuses on Business Consulting and Market Research.Read More
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