- Cebu Chicago
- Center On Halsted
- Century 21 Affiliated
- Century Centre Lounge
- Century Mallet Instrument Service, LLC
- Ceramics By Leo
- Ceres' Table
- Cesar's On Broadway
- Chad Patterson
- Chad Patterson
- Champagne Curves
- Char Crust
- Charbella Salon
- Charles A. Newell
- Charlies Chicago
- Chaz Brooks Hair, LLC
- Che Thai LLC
- Cheba Hut
- Cheesie's Pub & Grub
- Cheesie's Pub & Grub / Lost Reef Lounge
- Cheesie's Truck LLC
- Chef Thiago
- Chengdu Aroma
- Cherry Nero
- Chi50
- Chica Plant Shop
- Chicago A Cappella
- Chicago Actors Staffing
- Chicago Acupuncture
- Chicago Artisan Market - Ravenswood
- Chicago Artisan Market - Ravenswood
- Chicago Bagel Authority - Belmont
- Chicago Beer Experience, INC.
- Chicago Bp@irving (gei-152)
- Chicago Cheese Company
- Chicago City Properties, LLC
- Chicago Cubs Baseball Club, LLC
- Chicago Cubs Charities
- Chicago Diplomat Cafe
- Chicago Dog
- Chicago Electrolysis And Body Care
- Chicago Film Supplies LLC
- Chicago Fitness Center
- Chicago Gallery News (cgn)
- Chicago Gay Mens Chorus
- Chicago Green Cleaners
- Chicago Guest House
- Chicago Hair Extensions Salon
- Chicago Haircuts & Shaves LLC
- Chicago Harley-davidson
- Chicago Holistic Medicine
- Chicago House Of Smokes
- Chicago Karate Club
- Chicago Landscape
- Chicago Lux Studio
- Chicago Male
- Chicago Men's Spa
- Chicago Metropolitan Symphony Orchestra
- Chicago Microblading Studio
- Chicago Mnaintenance And Repair
- Chicago Montessori
- Chicago Music Exchange
- Chicago Parking Solutions
- Chicago Pinky Nail On Southport, INC.
- Chicago Resin
- Chicago Run
- Chicago Running & Special Events Management, INC.
- Chicago School Of Shoemaking
- Chicago Sugar Daddy Patisserie
- Chicago Sugar Daddy Patisserie LLC
- Chicago Urban Pets
- Chicago Vintage Fest
- Chicago Wick Stop
- Chicago Yacht Club
- Chicago's Blarney Stone
- Chicago's Pizza
- Chicagoalnd Cookie LLC Lincoln Park Series
- Chicagoland Community Management, LLC
- Chicagoland Deck Cleaning & Sealing
- Chick-fil-a Wrigleyville
- Chicken Hut
- Chilam Balam
- Child First Academy
- Children's Learning Place
- Chinese Foot Massage
- Chipotle Mexican Grill
- Chitown Sandwich Club
- Choc Choc, INC.
- Choochoo Chicago
- Christina J Murray
- Christine Tardy
- Christine Tardy
- Christopher J. Rodriguez
- Chronos International, INC.
- Cic Theater And Bar
- Cicerone Certification Program & Craft Beer Institute
- Cielito Paradise
- Circa Ceramics
- Circle K
- Circle K # 6711
- Citi Food Mart
- Citi Food Mart
- City Groomers
- City Press Juice & Bottle
- City Suites Hotel
- Claire's
- Clarabrows
- Clare Britt Photo
- Clark Griffiths
- Clark Smoke & Vape
- Clark Street Sports
- Classxtrash
- Clc Stylists LLC
- Cleaned In The USA
- Click
- Cloud Cakes
- Cloud Cookie
- Clover Kratom
- Club Studio
- Clutch Audio Visual, INC.
- Cmd Multimedia Consulting, INC.
- Coachlight Laundry
- Coalfire Pizza
- Coconut Yoga
- Coda Di Volpe
- Cody R Dean LLC
- Cody's Public House
- Coffee & Tea Exchange
- Coffee Hip Hop And Mental Health
- Coffee Lab & Roasters
- Coffee Tree & Tea Leaves
- Colectivo Coffee Roasters
- Collective Harmony Co
- Color Lab
- Comfort African Cuisine
- Comfy Massage
- Comfy Massage
- Comfy Spa Of Chicago
- Compassionate Childcare LLC
- Comprehensive Property Solutions, LLC
- Computerzone Usa, INC
- Connected Property Management LLC
- Connor Shinberger
- Continental Assembly INC
- Convenient Food Mart
- Cool Stuff
- Cop A Squat
- Core Chicago Pilates
- Corepower Yoga
- Corine A. O'hara
- Cornelia Broadway Barbers
- Cornelio's Master Tailor
- Corner Communications
- Coronas Cafe INC.
- Corridor Brewery And Provisions
- Costa Rica Experts INC
- Country Club
- Country Financial
- Couture Events, INC.
- Couture Nails And Waxing
- Coyotes Pizza
- Cozy Noodles & Rice
- Cpf
- Crab King
- Craftsman Plating & Tinn Corp
- Cram Chicago
- Crave Cookies
- Crawl Chicago
- Crea.tif Ink
- Creative Commune
- Creative Story Telling, LLC
- Cremation Society Of Illinois, INC.
- Crisp
- Crispy Chicks
- Crissie Vitale Creative
- Crmd Ice Cream
- Cross Fit Defined
- Crosstown Fitness
- Crosstown Fitness
- Crown America INC
- Cruise Utopia
- Crumbl Cookies
- Crushed Pizzeria
- Crushed Pizzeria
- Crystal Cleaners On Belmont
- Crystal Cleaners Plus
- Crystal Lake Sky
- Crystal Patel
- Cstyle Fitness
- Cubaneo
- Cubaneo
- Cubby Bear Lounge LTD
- Cuddle Bunny LLC
- Culver's Of Chicago Wrigleyville
- Curbside Bicycles
- Curl's Bracelets
- Curry Point
- Customeyes
- Cut Cats Courier LLC
- Cvs/pharmacy # 17711