| Name | Phone | Category |
| HALLOWELL & JAMES FUNERAL HOME | (630) 964-6500 | Funeral Homes |
| HAMILTON PARTNERS | (630) 719-5571 | Real Estate - Commercial - Business |
| THE HAMPTON SOCIAL | (630) 219-0009 | Restaurants |
| HANMI BANK | (630) 480-5023 | Banks - Consumer |
| HAPPINESS IS PETS | (630) 968-7910 | Pet Store & Supplies |
| HARDESTY EYECARE | (630) 517-2000 | Optometry |
| HARRY CARAY'S ITALIAN STEAKHOUSE | (630) 953-3400 | Restaurants |
| HARVESTER PLACE / ANTHEM MEMORY CARE | (630) 230-1170 | Memory Care |
| HAYS DIGITAL GROUP | (630) 235-7193 | Marketing Services |
| HEALTH MARKETS - STEPHANIE DRAPAC | (219) 263-8280 | Health Insurance |
| THE HEARING CARE CLINIC | (630) 963-6161 | Hearing Aids |
| HEARTLAND BANK AND TRUST COMPANY | (708) 246-2200 | Banks - Business |
| HEARTLAND PAYMENT SYSTEMS | (630) 880-8935 | Credit Card Processor |
| HERITAGE HOUSE FLORIST, INC. | (630) 968-0700 | Florists |
| HIGHLAND LANDMARK I - MANAGED BY LINCOLN PROPERTY COMPANY | (630) 322-8608 | Real Estate - Commercial - Business |
| HIGHLAND LANDMARK II, MANAGED BY CBRE | (630) 434-0394 | Real Estate - Commercial - Business |
| HILTON CHICAGO/OAK BROOK HILLS RESORT & CONFERENCE CENTER | (630) 850-5555 | Hotels |
| HILTON LISLE/NAPERVILLE | (630) 245-7600 | Hotels |
| HINSDALE HUMANE SOCIETY | (630) 323-5630 | Animal Shelter |
| THE HIRE SOLUTION | (630) 953-7370 | Employment |
| HOLY MACKEREL! FRESH SEAFOOD LOMBARD | (630) 953-3444 | Restaurants |
| HOME HELPERS | (630) 515-1185 | Senior Home Care Services |
| HOME&MANOR | (630)-541-7719 | Retail |
| HOOTERS RESTAURANT | (630) 960-4008 | Restaurants |
| HOPE'S FRONT DOOR | (630) 241-0187 | Volunteer |
| HUMIDOR OF LISLE | (630) 796-6100 | Cigar Lounge |
| THE HYATT LODGE AT MCDONALD'S CAMPUS | (630) 568-1234 | Hotels |
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