- Gordo's Tiny Taco Bar
- Gordon Flesch Co INC.
- Gordon In Lakeshore East
- Gordon' S Ace Hardware - South Loop
- Gorilla INC
- Government Navigation Group, INC.
- Grab A Snack
- Gracie Chicago Jiu Jitsu
- Graham Crackers Comics LTD
- Graham Grady Advisors, LLC
- Grain And Sea
- Grand Victoria Foundation
- Granite Creek Capital Partners, LLC
- Grant Consulting Group LLC
- Grant Park Bistro / Petite Vanille
- Grant Park Cleaner
- Grant Thornton Advisors LLC
- Grant Thornton LLP
- Gravitea River South
- Gray Communications INC
- Gray Line Chicago
- Gray Matter Analytics
- Gray Talent Group, INC.
- Grazie Grace Boutique / Paparazzi
- Great American Finance
- Great Arc Technologies INC
- Great Dane LLC
- Great Lake Meat Co. / County Bbq
- Great Lakes Advisors, LLC
- Great Point Trading
- Greek Time Chicago
- Green Apple Phoever
- Green Basil Street
- Green House Building Solutions LLC
- Green Street Kitchen LLC DBA The Oakville
- Greenrock Research, INC.
- Gregg Helfer LTD
- Gregory S Sapp Violins, LTD
- Grenzebach, Glier & Associates, INC.
- Greyrock Capital Group
- Greystar Illinois Management, LLC
- Grfi Limited
- Gro Tress Essentials
- Grooming Chair
- Group One Trading LP
- Groupon
- Grover Strategies
- Gsg Consultants, INC.
- Gsn
- Gsp Green Steel Projects
- Gss Creative
- Gtt Americas, LLC.
- Guadagnini Violin Shop
- Guavatech, INC.
- Guckenheimer @ Cna
- Guggenheim Capital, LLC
- Gulab Jewelry
- Gwen Grossman Lighting Design, INC.
- Gx2 Spread Markets
- Gx2 Systems
- H & H Watch Repair
- H & M
- H Goodfriend/ Raymond James
- H Watson Jewelry Engraving Co
- H.g. Jones & Associates, INC.
- H.g. Jones Real Estate, LLC
- H.i.g. Capital Management, LLC
- H.r. Jewelers, INC.
- H&m
- H&r Block Enterprises
- Hair 23
- Hair Affair Chair
- Hakimian Gem Co.
- Hakimian Imports INC
- Halaleez
- Hale Mcdonald's
- Half Moon Yoga
- Half Sour
- Hallmark Media United States, LLC.
- Halloween Hallway
- Halsted Limited Partnership
- Halsted Street Deli
- Halsted Street Deli
- Halsted Street Deli & Bagel
- Halsted Street Deli + Bagel
- Halsted Street Deli Holdings, LLC - 222 N. Lasalle
- Hamilton Jewelry
- Hampton Inn
- Hampton Inn Chicago Downtown
- Hanabusa Cafe
- Hand & Stone Massage And Facial Spa
- Hand & Stone Massage And Facial Spa
- Handcut Foods
- Hannah's Bretzel 161 N. Clark LLC
- Hannah's Bretzel 227 W. Monroe LLC
- Happy Monday
- Happy Snacks
- Harbor Capital Advisors
- Harbor Drive Cleaners And Tailors
- Harbor Point Cleaners, INC.
- Hard Hat Hub LLC DBA Builtworls
- Harlan J. Berk, LTD.
- Harley-davidson Financial Services, INC.
- Harmer Associates, INC.
- Harmony Technologies, INC.
- Harold Burland & Son
- Harold's Chicken
- Harris & Harris, LTD.
- Harris Associates L.P.
- Harry's Hamburgs
- Harry's Sandwich Shop
- Harrys Sandwich Shop
- Hart 111 West Wacker, LLC
- Hartz & Co
- Harvard Maintenance, INC.
- Havas Annex
- Haven Art Group LLC
- Hayaa Salon & Spa
- Haydee Rodriguez-hides
- Hayden Hall Chicago
- Hays U.s. Corporation
- Hb Staffing
- Hdr Architecture, INC.
- Headrest Barber Shop P.C.
- Headstrong
- Healing To Action
- Health First Network
- Health Management Assoc. Incofil
- Healthchampion Partners LLC
- Healthpro Innovation Workforce Solutions, LLC
- Healthy Juice Bar
- Heartland Alliance For Human Needs & Human Rights
- Heartland Financial Services, LLC
- Heaven On Seven
- Hehmeyer
- Heidrick & Struggles INC
- Hellmuth, Obata & Kassabaum, INC.
- Hello Gorgeous
- Hello Kitty Cafe
- Hello Mainland LLC
- Help At Home
- Help At Home, LLC
- Henricksen & Company, INC.
- Herb & Tao Acupuncture And Wellness, Pllc
- Herb And Ohm, LLC
- Heritage Cleaners
- Heritage Outpost
- Heritage Outpost
- Hero Coffee
- Hero Coffee Bar
- Hertz
- Hexstream
- Hfr Holdings, LLC
- Hfr, INC.
- Hgtv
- High End & Specialty Art Gallery
- High Ridge Futures LLC
- High Ridge Partners
- High Tide Poke
- Highground Trading LLC
- Highland Solutions
- Higi Sh LLC
- Hilco Redevelopment Partners
- Hildebrandt
- Hill Food Service Consulting
- Hill-rom Holdings, INC
- Hillary Alexandria
- Hilti, INC.
- Hilton Garden Inn - Chicago Downtown South Loop
- Hilton Garden Inn / Canopy
- Hilton Garden Inn Chicago
- Himalayan Restaurant
- Hines Interests Limited Partnership
- Hipr Pacsoft Technologies, INC.
- Hirenetwork
- Hireology
- Hitachi Vantara LLC
- Hka Global LLC
- Hms Industrial Networks
- Hntb Holdings LTD
- Ho Brothers
- Hodgin Services INC
- Hollander & Feuerhaken
- Homer Segura Jewelers
- Hometress
- Homewood Suites By Hilton Chicago Downtown Southloop
- Honey Berry Pancakes & Cafe State Street
- Hops And Scotch
- Hora Express LLC
- Hora INC
- Horizon Family Wealth
- Hospitality Parking Services
- Hostelling International - Chicago
- Hostess Brands
- Hostway Corporation
- Hostway Services, INC.
- Hot Woks Cool Sushi
- Hot Woks Cool Sushi
- Hotel Allegro
- Hotel Julian