Illinois business directory

413,850 Illinois businesses in 1,338 cities and towns. Search above, or pick a city or category.

Quick answer

Illinois is dominated by the Chicago metro, the third-largest in the country, with Aurora, Rockford, Springfield, Peoria and the Metro East as other business centers. Our Illinois directory lists 413,850 businesses in 1,338 cities and towns. 95.5% of them list a phone number and 85.1% list a website.

Updated October 2026

Checking out a Illinois company? Our Illinois business lookup guide shows how to confirm its registration, trade name and licenses with the state.

Largest cities

Chicago89,631 businesses Naperville7,338 businesses Rockford6,093 businesses Springfield5,608 businesses Schaumburg5,164 businesses Peoria4,968 businesses Aurora4,814 businesses Joliet3,785 businesses Elgin3,626 businesses Champaign3,493 businesses Arlington Heights3,394 businesses Bloomington3,342 businesses Evanston3,209 businesses Downers Grove2,863 businesses Orland Park2,860 businesses Northbrook2,750 businesses

See all 1,338 Illinois cities

Browse by category

Marketing & advertising

Printing & signs (3,042)Marketing agencies (2,055)Photographers & video (1,533)Advertising agencies (1,082)Web design (664)Graphic design (594)

Auto

Auto repair (11,139)Car dealers (5,284)Gas stations (5,091)Auto parts (2,277)Car wash & detailing (2,061)Auto body & collision (1,657)Tires (1,598)Towing (870)Auto glass (584)

Food & drink

Restaurants (21,334)Bars & breweries (6,881)Coffee shops & cafes (5,024)Pizza (4,670)Bakeries & desserts (4,478)Grocery & specialty food (4,026)Mexican restaurants (4,004)Catering (686)

Health & medical

Doctors & clinics (13,512)Dentists (7,464)Counseling & therapy (5,815)Senior living & home care (5,471)Chiropractors (3,296)Wellness & alternative health (2,967)Physical therapy (2,886)Eye care (2,864)Urgent care & hospitals (2,610)Pharmacies (2,187)Massage therapy (1,960)

Beauty & personal care

Hair salons (13,391)Spas & med spas (5,469)Nail salons (3,158)Barbers (2,792)Dry cleaning & laundry (2,004)Tattoo & piercing (1,072)

Professional services

Business consulting (16,306)Accountants & tax (4,216)IT & computer services (3,321)Engineering & architecture (2,485)Software development (2,395)Staffing & employment (1,955)Shipping & couriers (1,776)Funeral homes (1,484)

Real estate

Real estate agents (16,293)Property management (2,614)Self storage (2,597)

Finance & insurance

Insurance agents (10,047)Banks & credit unions (6,602)Financial advisors (3,310)Mortgage lenders (2,485)

Legal

Lawyers (11,281)

Shopping & retail

Clothing & boutiques (6,143)Phones & electronics (4,634)Florists & gifts (3,701)Furniture & home decor (3,085)Hardware & garden (2,861)Thrift & consignment (2,837)Sporting goods & outdoor (2,098)Jewelry (1,730)Liquor stores (1,513)Cannabis dispensaries (108)

Pets

Pet grooming & training (3,554)Veterinarians (1,560)Pet stores (1,027)

Fitness & recreation

Gyms & fitness (7,648)Martial arts (1,362)Dance studios (1,151)Golf (925)Yoga studios (722)Outdoor adventure & tours (487)

Hotels & travel

Hotels & lodging (3,670)Travel agencies (1,879)Campgrounds & RV parks (586)Vacation rentals (231)

Education & childcare

Schools & tutoring (12,063)Childcare & preschools (2,872)

Events & entertainment

Arts & entertainment (6,008)Event planning & weddings (2,690)Event venues (572)

Business & industrial

Manufacturing & wholesale (10,222)Farms & agriculture (3,007)Propane & energy (1,781)

Community & faith

Churches & places of worship (16,614)Nonprofits & community (13,138)

Common questions

How many businesses are listed in Illinois?

USA Business Search lists 413,850 Illinois businesses in 1,338 cities and towns. 95.5% list a phone number and 85.1% list a website.

Which Illinois cities have the most businesses?

Chicago (89,631), Naperville (7,338), Rockford (6,093), Springfield (5,608), Schaumburg (5,164).

How do I look up a Illinois business with the state?

See our Illinois business lookup guide for the official registry search, trade names and license checks.

Where does this data come from?

Listings come from open business data from the Overture Maps Foundation plus submissions from business owners. See data sources. Owners can fix any listing for free.

Own a Illinois business? Add it free, or claim and fix your listing.