- The Brattle Group, INC.
- The Cabet Group, Incorporated
- The Capital Group Companies INC
- The Cbd Variety Shop
- The Cherry Circle Room
- The Chicago Buzz
- The Chicago Club
- The Chicago Corporation
- The Chicago Fabric Sales Co
- The Chicago International Film Festival
- The Chicago Scholars Foundation
- The Chicago Trend Corporation
- The Claro Group, LLC
- The Clay Pot
- The Cliff Dwellers
- The Commercial Club Foundation
- The Commercial Club Of Chicago
- The Concord Group
- The Congress Hotel
- The Container Store
- The Cryo-effect, LLC 211 Lake
- The Danielle Ashley Group, INC.
- The Dearborn
- The Dial Bookshop
- The Dining Room At Kendall College At National Louis University
- The Drunken Bean
- The Elements Group
- The Elle
- The Esquire Salon
- The Exchange - 224 S. Michigan Ave
- The Exeter Group - Tms, LLC
- The Experience Group, INC.
- The Fairmont Chicago
- The Family Institute
- The Fat Shallot
- The Fat Shallot
- The Fillmore
- The Flip
- The Florentine
- The Fox In A Box - Chicago
- The Franklin Tap
- The French Pastry School LLC
- The Gage
- The Gettys Group, INC.
- The Gladstone Companies
- The Goldsmith Ltd., Of Chicago
- The Gray
- The Grill On 21
- The Grillroom
- The Gym Pod INC.
- The Halal Guys
- The Halal Guys
- The Hearn Company
- The Hightower Report
- The Hoh Group, INC.
- The Hot Dog Box
- The Hotel Blake Timeshare Association, INC.
- The Hubbard House Restaurant, LLC
- The International Kitchen, INC.
- The Jewels Of Chicago
- The Jibarito Stop, LLC
- The Joffrey Ballet
- The John Buck Company Foundation
- The John Buck Company, L.L.C.
- The Journey Forward
- The Judicial Sales Corporation
- The Ktm Kitchen
- The L Station
- The La Salle Hotel
- The Landhart Corporation
- The Larko Group INC
- The Law Office Of Michael J. Glink LLC
- The Leadership Voice Studio
- The League Of Chicago Theatres Foundation
- The Learning Botanist
- The Lion Theatre
- The Luxe Grp Chicago Pa
- The Marmon Group LLC
- The Marq
- The Maude Group
- The Metropolitan Fitness Club
- The Michaels Development Company I
- The Mid-america Club
- The Midland Hotel
- The Navnish Group
- The New York Times
- The Nhp Foundation
- The Nielsen Company (us), LLC
- The Noble Grape
- The Northern Trust Company
- The Northman Beer And Cider Garden
- The Now South Loop
- The Old Mountain Co INC
- The Options Clearing Corporation
- The Original Hair Designers
- The Peregrine
- The Price Futures Group INC
- The Psychic Source Good Luck & Karma Shop
- The Psychic Source Yoga Shop
- The Revival
- The Roger Baldwin Foundation Of Aclu, INC.
- The Roost Carolina Kitchen
- The Royal Bedroom
- The Saucery By Rao's Homemade
- The Sculpt Spot
- The Segal Company(midwest),inc
- The Shelby Group
- The Siegfried Group, LLP
- The Silversmith Hotel & Suites
- The Sky - Line Club
- The Stepping Stones Group
- The Stylish Bundt Cake
- The Syber Technology Group
- The Synergy Companies, INC.
- The Tailor Shop
- The Terry Group
- The Ups Store
- The Ups Store
- The Ups Store
- The Ups Store
- The Washington Post
- The Wellness Machine
- The William Everett Group
- The Wine Rack, INC.
- The Wit
- The Woolworth Bar At Washington Hall
- Theo's
- Therese Crowe Design LTD.
- Think Marketing International INC.
- Thoma Bravo, L.p
- Thomas Hoglund
- Thomas P Gohagan
- Thomas White Int'l LTD
- Thompson And Associates Holdings, LLC
- Thoughtworks INC
- Thrall Enterprises, INC.
- Threading Plus
- Thred Partners
- Threekit , INC.
- Threshold Acoustics LLC
- Thw Criterion Group
- Thyssenkrupp Supply Chain Services Na, INC.
- Ticket Exchange
- Tidy Care
- Tie Bar Holdings LLC
- Tilia Holdings, LLC
- Tilly Bagel Shop
- Time INC.
- Tiny Tapp & Cafe
- Tishman Speyer Properties L.P.
- Tlc Management Co.
- Tm Financial Forensics, LLC
- Tma Chicago/midwest Memorial Scholarship Foundation
- Tmp Worldwide Advertising & Communications, LLC
- Tnp Property Manager LLC
- Toast Of Chicago Haire's Gulf Shrimp
- Tobin Development Corporation
- Todd Legal Search INC.
- Tom James Of Chicago
- Tonya Wesley
- Toomey Reporting, INC.
- Top Design USA INC
- Tortazo Willis
- Totto's Market
- Tourmagnet, LLC
- Town House Restaurant & Wine Bar
- Tpn
- Tracylocke
- Trade To Trade LLC
- Tradelink LLC
- Trader Joe's #701
- Trader's Market
- Trading Block, Money Block
- Trading Technologies
- Tradition
- Transaction Network Servc
- Transagra Int'l INC
- Transmart
- Transmart Technologies
- Transperfect Translations International
- Transwestern
- Transwestern
- Trattoria #10
- Travel Center
- Travel Visa Pro LLC
- Travelodge Hotel Chicago
- Travelzoo
- Travertine Labs LLC
- Trc Services, INC.
- Treasures
- Treat Shop
- Tremont Realty Capital LLC
- Trend Community Development Corporation
- Trend Publishing INC
- Trevor Harran
- Trey-5 Dispensary
- Tribune 365, LLC
- Tribune Content Agency LLC
- Tribune Interactive, LLC
- Tribune Publishing Company, LLC