Business consulting in Illinois
16,306 business consulting listed across 970 cities in Illinois.
Sponsored
Quick answer
USA Business Search lists 16,306 business consulting in Illinois. The most are in Chicago (4,221), Schaumburg (342), Naperville (316).
Updated October 2026Business consulting by city
Chicago (4,221)Schaumburg (342)Naperville (316)Rockford (243)Springfield (201)Elk Grove Village (198)Northbrook (184)Elgin (160)Aurora (157)Peoria (151)Arlington Heights (143)Oak Brook (134)Evanston (133)Downers Grove (131)Skokie (129)Champaign (116)Bloomington (116)Joliet (115)St. Charles (111)Des Plaines (105)Addison (105)Lombard (100)Rolling Meadows (100)Lisle (94)Elmhurst (91)Buffalo Grove (89)Itasca (89)Deerfield (87)Crystal Lake (84)Glenview (84)Bolingbrook (81)Wheeling (76)Libertyville (72)Palatine (71)Decatur (70)Waukegan (69)Oak Park (69)Wheaton (68)Plainfield (68)Oakbrook Terrace (68)Lake Forest (67)Burr Ridge (67)Carol Stream (62)Orland Park (57)Quincy (57)Tinley Park (57)Bensenville (57)Park Ridge (54)Mount Prospect (54)Batavia (54)Vernon Hills (53)Woodridge (52)McHenry (51)West Chicago (51)Rosemont (51)Lake Zurich (50)Gurnee (49)Hoffman Estates (49)Glen Ellyn (49)Franklin Park (49)Geneva (48)Mokena (48)Warrenville (48)Lincolnshire (48)Highland Park (47)Westchester (46)Moline (45)Edwardsville (45)Frankfort (45)Dekalb (45)Belleville (44)Danville (43)Loves Park (42)Woodstock (41)Kankakee (41)Wood Dale (41)Barrington (40)Mundelein (40)Effingham (40)Romeoville (39)Melrose Park (38)Oak Lawn (35)Urbana (35)South Holland (35)Niles (34)Normal (34)Hinsdale (34)Freeport (34)Belvidere (34)Bridgeview (34)Glendale Heights (34)Lincolnwood (33)Alsip (33)Westmont (32)Sycamore (32)Bloomingdale (31)Pekin (31)Rock Island (31)Northfield (31)Carbondale (30)New Lenox (30)Galesburg (30)Granite City (30)Bartlett (30)Marion (29)Ottawa (29)Mattoon (29)Huntley (29)Grayslake (28)Roselle (28)Lemont (28)Schiller Park (28)Oswego (27)Jacksonville (27)Peru (27)Machesney Park (27)Fairview Heights (26)Morton Grove (26)Willowbrook (26)Matteson (26)
Well-documented business consulting in Illinois
A sample of listings with a street address, phone number and website, one per city.
Communication Zone, Inc.
Staples
Rockford Lithuanian Club
AT&T
Adecco Staffing
Storm Interactive Entertainment
Fornarelli Motorsports
Elite Staffing Inc.
Marine Corps Recruiting
Hinckley Springs Water Delivery Service 3915
Accurate Biometrics
How to choose a consultant in Illinois
- Ask who will actually do the work and how often you'll hear from them.
- Get the scope, price and timeline in writing.
- Ask for two references from clients like you.
Common questions
How many business consulting are listed in Illinois?
USA Business Search lists 16,306 business consulting in Illinois, in 970 cities and towns.
Which Illinois cities have the most business consulting?
Chicago (4,221), Schaumburg (342), Naperville (316), Rockford (243), Springfield (201).
How do I verify a Illinois business?
Use the state's official business search and licensing boards, linked in our Illinois business lookup guide.