- Boka Catering Group
- Bold Numbers, INC.
- Bombacigno's
- Bon Appetit @ Uber
- Bon Appetit Creperie
- Bonci
- Bond Vet West Loop
- Boost Mobile
- Boost Mobile
- Boqueria
- Boss Ladi Boutique
- Boston Blackie's Of Riverside
- Bottom Lounge
- Bowery & Bash, INC.
- Bowl & Sushi
- Boxcar Betty's
- Bp
- Brad Johnson
- Brain Builders Academy
- Brainsurf
- Brand & Business Incubator
- Brennan Kamish
- Brentano, INC.
- Brian Fickel
- Brian Mcconkey Photography
- Brian Wright Incorporated
- Briarpatch Landscaping, INC.
- Brickermade LLC
- Bridge Industrial
- Bridgford Marketing
- Bright Horizons At Illinois Medical District
- Brightpath West Loop
- Brilliant Earth, LLC
- Brittany Spindler
- Broken Hearts
- Brooklinen, INC.
- Brooklyn Boulders
- Brooklyn Construction Services
- Brown Bag Seafood Co.
- Brown Brothers Harriman & Co.
- Brunch N' Burgers Chicago
- Bty Training Lab
- Bub City
- Buck Management Group LLC
- Buen Apetito
- Buffalo Wild Wings
- Buffalo Wild Wings
- Builders Vision, LLC
- Building Management Group Co.
- Bukiety Floral
- Bukiety Floral Artistry
- Bunch Of Tees
- Bunches To Go
- Burger Empire LLC
- Burger King
- Burger King
- Burger King #11967
- Burger King Restaurant
- Burlington Coat Factory
- Burrito Beach
- Business Technology Partner, Bt Partners
- Butler Gourmet, LLC
- Butterclaw / Cluckson's / Guacdog / Butter And Vine
- Buw Human Hair Store
- Bw Nails Spa
- Byrd's Hot Chicken
- C
- C R Market Surveys, INC.
- C-strategies, INC.
- C.h. Robinson Company, INC.
- C.h. Robinson Operations, INC.
- C.h. Robinson Shared Services, INC.
- Ca Fortune / Srw
- Cadogan Tate Chicago Limited
- Cafe 1850
- Cafe Margo
- Cafebeanz Company
- Cairo Kebab
- Cake Chicago
- Caliber Collision Centers
- Caliber Collision Centers/caliber Auto Glass
- Calibrate Property Management, LLC
- Calzada Capital Partners
- Camera Ambassador
- Camera Department, INC.
- Cameron Electric Motor Co
- Campbell Street Asset Management
- Campus Market
- Can Tv
- Canal Market
- Canal Partners
- Canal Street Eatery & Market
- Canete Medina Consulting Group INC.
- Cannabis Cash Coin LLC
- Cannon Media, INC.
- Canyill Networks LLC
- Capitol Hill Cleaners
- Captain Hooks
- Captain Hooks & Firehouse
- Carbon Hospitality Group
- Carm's
- Carnitas Don Rafa, INC.
- Carnivale Restaurant
- Carnow Conibear & Associates
- Carol Ann Brody
- Carole Robertson Center For Learning
- Carousel Art Group
- Carpenter Street
- Carrillo Photo
- Carrington & Carrington, LTD.
- Carroll Adp, LLC
- Cars.com
- Case Integrative Health
- Casel
- Casper
- Catalyst Ranch
- Catalytic, INC.
- Cb Beauty Studios
- Cbd Kratom
- Cboe Bats, LLC
- Cboe Exchange, INC.
- Cboe Livevol, LLC
- Cbre, INC.
- Ccc Intelligent Solutions INC
- Cchange INC.
- Ccmsi
- Cdw LLC
- Ceja Strategies LLC
- Celadyne Technologies
- Cell Biologics, INC.
- Centeno Art & Design
- Center For Advancing Domestic Peace, INC.
- Central Baking Supplies
- Central Park Cleaner LLC
- Cg Life
- Cgi Technologies And Solutions INC
- Ch Distillery
- Ch2m Hill Engineers, INC.
- Chai City Teas
- Chan's King Wok, INC.
- Channeled Resources INC
- Charles M Miles
- Charles Mcrae Wholesale
- Chase Allen Wealth
- Chatto Skin/hair Care INC.
- Chavez Lounge & Restaurant
- Chd Expert Americas INC.
- Chdg Phase 1a1 (hotel/retail) Owner LLC
- Cheese And Board
- Chef Art Smith's Reunion
- Chef Grady, LLC
- Chelsea Ventures, LLC
- Cherry Tung Art
- Chez Joel
- Chi'tiva Cafe At Timeout Market Chicago
- Chiarugi Hardware
- Chibi Blooms Cafe
- Chiboys Cafe
- Chicago 1 Foods
- Chicago All--stars Pin
- Chicago Appliance Repair And Installation
- Chicago Bulls Charities
- Chicago Card Club, LLC
- Chicago Cares
- Chicago Children's Advocacy Center
- Chicago Children's Theatre
- Chicago Cultural Alliance
- Chicago Cut
- Chicago Diabetes Project
- Chicago Dog
- Chicago Fire Escape Co
- Chicago French Market
- Chicago Home Healthcare S.c.
- Chicago Home Solutions Group, INC.
- Chicago Journeymen Plumbers Lu 130
- Chicago Lighthouse
- Chicago Literacy Alliance
- Chicago Locksmiths
- Chicago Meat Collective
- Chicago Minds
- Chicago News Now #1627
- Chicago Newsroom, INC
- Chicago Parking Solutions
- Chicago Patio Doors
- Chicago Pawners & Jewelers, INC.
- Chicago Philly Stop
- Chicago Police Memorial Foundation
- Chicago Run
- Chicago Running & Special Events Management, INC.
- Chicago Snow Studio
- Chicago Stars Fc, LLC
- Chicago Story Piccolo Guliner
- Chicago Stringing
- Chicago Sun-times
- Chicago Teachers Union Foundation, INC.
- Chicago Touch
- Chicago Uniforms Company
- Chicago Union Station Flowers & Gifts INC.
- Chicago Upholstery Studio
- Chicago Valet Parking INC.