- Union Padel
- Union Parking, LLC
- United Bindery Service INC.
- United Center
- United Decorating Group, LLC
- United Parcel Service
- Universal Overall Co
- Universal Scrap Metals,inc.
- University Village Montessori School, INC.
- Unlimited Research
- Unrecognizable Fit LLC
- Up North Yarns
- Up Only
- Uplift Desk
- Upwork INC.
- Urban Equities, INC
- Urban Flora
- Urban Gis, INC.
- Urban Ideas Limited Partnership
- Urban Initiatives
- Urban Landscape Solutions, LLC
- Urbane Security
- Us Gypsum Co
- USA Errand Service INC
- Usg Corporation
- Usg Interiors LLC
- Uzurv
- V.w. Investment
- Valet Parking Authority
- Valor Management LLC
- Van Buren & Ashland Amoco
- Van Cleef Hair Studio
- Van Cleef Hair Studio
- Vango Beauty Bar
- Vanilla Video
- Vanille Pattisserie
- Vanqua Bio, INC
- Variety Meat Co
- Vaya's Self Care
- Vc Management, LLC
- Vca Animal Care Center Of Chicago
- Vdiware, LLC
- Vector Custom Fabricating
- Veerasway: The Front Room
- Vegan Now
- Velus Interiors LLC
- Velvet Taco
- Venice Nail & Spa, INC.
- Ventures Endurance Events, LLC
- Verde Events,inc
- Verifone Systems
- Verizon Business Services
- Verizon Wireless
- Verizon Wireless Premium Retailer
- Vernon Stewart
- Vertige
- Vertiport USA Chicago
- Vestor Capital, LLC
- Veterinary Emergency Group
- Vetpride Services, INC.
- Viaggio
- Viaggio
- Vibes N Skin LLC
- Victoria Gooden
- Victory & Vice
- Victory Dance Foods
- Victory Park Capital Advisors, LLC
- Victus Ars
- Video Parachute
- Vietfive Coffee
- Viking Electric
- Vince Alessia Fitnes Nutrition LLC
- Vincent Curta
- Vintage House Chicago INC.
- Vintage Lounge
- Vintage Place Settings
- Viper Room INC
- Virgil Marion Gallery
- Virtual Injury Care
- Visionworks #834
- Vistara Construction Services INC
- Vita Food Products INC
- Vital Proteins LLC
- Vital Transport Service LLC
- Vitalant
- Vitas Healthcare
- Vitasana
- Vivid Seats LLC
- Vocel
- Vodori
- Volcano Sushi 90
- Volcano Sushi Cafe
- Volume Hair Salon
- Voodoo Doughnut
- Vp Parking INC.
- W & W Hauling Service
- W E O'neil Construction Co
- W-sf Goldfinger Owner Viii, L.L.C.
- W. J. O'neil Chicago
- Wabash Condominium LLC
- Waffles
- Wag West Loop LLC
- Walden Chicago
- Walgreens #04461
- Walgreens #21160
- Walker Consultants, INC.
- Walkout LLC
- Wallace Harrison Funeral Home
- Walsh Bowa 160 Jv
- Walsh Construction Co Of Ill
- Walsh Construction Company Ii, LLC
- Walsh Vinci Transit Community
- Walsh-fluor Design Build Team
- Warby Parker
- Wargaming (usa), INC.
- Wargaming West Corporation
- Waterton Associates L.L.C.
- Waterton Residential, L.L.C.
- Waterwell
- Wavemaker Global, LLC.
- Wciu- Tv Howard Shapiro
- Wcpx
- We Cre8 Design LLC
- Wearable Wellness
- Webb Devlam
- Weil Foot And Ankle Institute
- Wellington Management Company LLP
- Wellright, INC.
- Wendy's #11743
- Werner Printing
- West Central Association-chamber Of Commerce
- West Details Iii LLC
- West Haven Market & Grill
- West Loop Chicago Valet
- West Loop Cleaners
- West Loop Donuts
- West Loop Eye Care
- West Loop Fit Body Boot Camp
- West Loop Gate A Community Organization
- West Loop Gent's Salon
- West Loop Gentlemen's Salon
- West Loop Golf Club
- West Loop Lofts
- West Loop Market
- West Loop Market
- West Loop Mart
- West Loop Mart
- West Loop Nail Spa
- West Loop Tattoo Collective
- West Loop Valet
- West Loop Veterinary Care
- West Loop Veterinary Care
- West Loop Wine & Spirits
- West Side Gyros
- West Side Trasformation Corporation
- Western & Lake Check Cashers LLC
- Western Beauty Supply
- Westgate Consulting INC.
- Westhaven Coin Laundry
- Westhaven Coin Op LLC
- Westloop 2 Wine & Spirits
- Westloop Athletic Club
- Wework
- Wework12
- Wework13
- Wework16
- Wework8
- Whippin' Work LLC
- Whirlclass Cleaning
- White Castle #70
- White Palace Grill
- White Star Parking Service LLC
- Whitehouse Post Productions, LLC
- Whole Foods Market
- Why Knot Fibers
- Wichita Packing Co.
- Wielgus Product Models
- Wigglyville
- Wight & Company
- Wight Construction Services
- Wild Fork Foods
- Wilks Communications Group
- William Blair
- William Blair Investment Management
- William J Cassidy Tire & Auto
- Williams Lea, INC.
- Wilson Dow Group, INC
- Wine On Taylor
- Wings Over Canal
- Winsight, LLC
- Wireless Advocates LLC
- Wishbone Management, LP
- Wishbone Restaurant
- Withlove Collective
- Wls Bath & Kitchen Distributors INC.
- Wm. J. Cassidy Tire & Auto Sup
- Wndr Museum
- Woke Soul Coffee LLC
- Wolf Point Distilling
- Woman Made Gallery