- Crain Communications, INC.
- Cramer - Krasselt Co
- Crave Cookies & Soda
- Creative & Response Res
- Creative Tax Solutions
- Credit Interlink INC.
- Creditbility
- Cressey & Company LP
- Cricket Media
- Crimson Coward
- Crisjon Fine Jewelry, INC.
- Cross Connect Services LLC
- Cross Town Auto Park
- Crosscountry Consulting LLC
- Crowdfind, INC.
- Crowe Horwath LLP
- Crown Castle Fiber, LLC.
- Crown Imports, Constellation Brands, Tocayo Brewing Company
- Crumbl Cookies
- Crushcontracts
- Cryoeffect Cryotherapy Coldspa
- Crystal Equation Corporation
- Crystal Gems, INC
- Crystal Turner
- Cs Books & Records
- Csa Education
- Csg
- Csg
- Csg Media, LLC
- Csi Leasing, INC.
- Css, LLC
- Ct Corporation System
- Ctichicago
- Cullerton Group
- Cumming Management Group, INC.
- Curis Technologies
- Cushman & Wakefield Of Illinois, INC.
- Cushman & Wakefield U.s., INC.
- Custodial Solutions LLC
- Custom Eyes
- Custom Life Closets LLC
- Customize Your Career, LLC
- Cuticle...a Nail Salon
- Cutler Group LP
- Cutler Group, LLC
- Cvs/pharmacy #10942
- Cvs/pharmacy #3674
- Cwj Chicago
- Cwp Management, INC.
- Cwt Us, LLC
- Cxliv Enterprise LLC
- Cynasure
- D B Sterlin Consultants INC
- D's Custom Jewelry LLC
- D'vicino Master Jewelers
- Da Book Joint
- Da Local Boy
- Dakota Systems, Incorporated
- Dakshin Indian Restuarant
- Dan Cosgrove Design LLC
- Dana Bender Wellness, LLC
- Dance For Life
- Daniel J. Edelman Holdings, INC.
- Daniel J. Edelman, INC
- Daniel Levy Jewelry
- Daniel Nowak Watch Repair
- Daniel Son
- Daniels Health
- Danke Market
- Danny And Debbie Jewelers
- Danny's Jewelry Shop INC.
- Darcy Bonner & Associates
- Daria Peterson
- Das & Associates, INC.
- Dashing Chicago
- Data Climb LLC
- Data Defenders, LLC
- Data Products LLC
- Datalogics INC
- Datamade
- Daubenspeck And Associates Limited
- Dave's Confectionery
- David Csicsko Illustration
- David F. Albrecht
- David Robert Ruge
- Davis Harrison Dion INC
- Day-2-day Healthcare Staffing Firm LLC
- Dayspring Professional Janitorial Service Incorporated
- Dazzle Nails Spa
- DBA Ever.ag
- Dc Data Corporation
- Ddb Chicago INC.
- Ddn Consulting INC
- Ddt Data Processing, LLC
- De Paul University
- Deanna Tipton
- Dearborn Denim & Apparel
- Dearborn Harrison Parking INC.
- Dearborn Parking Corp.
- Dearborn Partners, LLC
- Dearborn Sourcing LLC
- Deborah Berry Agency
- Decision Spot LLC
- Decorating Solutions By Janet
- Deep Kleen And Maintenance LLC
- Deep Purpl
- Deep Purple / Fons
- Deepline INC
- Defencen Security
- Dei Giovani
- Delinquency Prevention Services, INC.
- Delmonico
- Deloitte & Touche Usa, LLP
- Delta Institute
- Dema Agency Consultants LLC
- Dennemeyer & Co., LLC
- Denodo Technologies INC
- Dept Of Rehabilitation Svc/vfp
- Design Museum Of Chicago
- Design Window Solutions
- Design2rave LLC
- Designers Market Block 37
- Designs By Rosa, INC.
- Desired Fashion
- Destify
- Dethlefsen & Balk INC.
- Deutsche Boerse Systems INC.
- Deutsche Leasing
- Development Specialists INC
- Devil Dawgs On State Street, LLC
- Dhl Express (usa), INC.
- Dhr Global
- Diageo Americas, INC.
- Diamantra, INC.
- Diamond & Gold Creations
- Diamond Consultants
- Diamond Parking Service INC.
- Diamond Point Management LLC
- Diamonds Of South Africa
- Diamonds On Wabash, INC.
- Diana Slaviero Art Studio
- Diana's Nail & Spa
- Diaview INC.
- Diesel Sales
- Digital Printers Square, LLC
- Dimend Scaasi
- Direct Improvements LLC
- Dirksen Us Courthouse
- Dirty South Vintage
- Disney Destinations
- Distilled Smoke
- Distributed Software Development
- Diversified Systems-illinois, LLC
- Dje H & W Group
- Dje Productions LLC
- Dkb Enterprize, LLC
- Dkg Nextgen Consulting LLC
- Dl3 Realty Advisors, LLC
- Dnr Diamonds INC
- Do What Matters
- Do-rite Donuts & Chicken
- Doart
- Doculabs INC.
- Dog Haus
- Dolan Mcenirycapital Management, L.L.C.
- Dollop
- Dollop Coffee
- Dollop Coffee
- Dollop Coffee Co
- Dollop Coffee Co
- Dollop Coffee Co At The Fisher Building
- Dollop Coffee Co.
- Domain Homesharing Management
- Domainpeople, INC.
- Dominion Cyber Forensics & Investigations
- Dominion Voting Systems, INC.
- Dominique Mcallister
- Dominique Mcallister
- Dominique Mcallister
- Donald A. Campbell & Co INC
- Donna Jewelry Co.
- Donoghue & Associates, INC.
- Dos Bros Fresh Mexican Grill
- Dos Toros Taqueria
- Dos Toros Taqueria
- Downtown Loop Taxes
- Downtown Mini Mart
- Downtown Smoke Shop
- Dq Luxury Reflexology Massage Relaxation Retreat
- Dragon Sushi Bar LLC
- Dream Jewelers INC.
- Dream Management
- Dresner Corporate Services
- Dresner Investment Services
- Drybar
- Ds Cantina, INC. DBA D.s. Tequila Co
- Ds Events Chicago
- Dscout
- Dss America, INC.
- Dsw Shoe Warehouse, INC.