| Name | Phone | Category |
| A&O HAIR BRAIDING SCHOOL | (708) 770-4425 | Hair Salons |
| A.C.E. THERAPIES | (708) 792-0162 | Child & Family Therapy |
| A. W. WENDELL & SONS, LLC | (630) 968-2412 | Builder - Custom Homes |
| AAA JEWELRY & DIAMOND EXCHANGE, INC. | (630) 852-0003 | Jewelers |
| ACE RELOCATION SYSTEMS INC. | 847-836-5200 | Movers |
| ADAMS-WINTERFIELD & SULLIVAN FUNERAL HOME | (630) 968-1000 | Funeral Homes |
| ADVOCATE AURORA HEALTH | (630) 929-6609 | Health Care Services |
| ADVOCATE GOOD SAMARITAN HEALTH & WELLNESS CENTER | (630) 275-2640 | Health Clubs |
| ADVOCATE GOOD SAMARITAN HOSPITAL | (630) 275-5900 | Hospitals |
| ADVOCATE GOOD SAMARITAN OUTPATIENT CENTER - DOWNERS GROVE | (630) 275-6840 | Health Care Provider |
| ADVOCATE MEDICAL GROUP | (630)387-6424 | Health Care Provider |
| ADVOCATE MEDICAL GROUP | (630) 526-4010 | Health Care Provider |
| ADVOCATE OUTPATIENT CENTER | (630) 859-8700 | Health Care Provider |
| AFFINITY HOSPICE LLC | (224) 357-1101 | Hospice |
| AFFIRM BEHAVIORAL HEALTH, PLLC | (708) 990-1174 | Mental Health |
| AH TENSOR INTERNATIONAL LLC | (630) 739-9600 | |
| AIM-CIL (Achieving Independence and Mobility - Center for Independent Living) | (630) 469-2300 | Social & Human Services |
| AIRE DENTAL GROUP | (630) 963-1458 | Dentists |
| Zohaib Ali | (708) 365-8411 | |
| ALLSTATE INSURANCE- DOROTHY HRDINA | (630) 237-2337 | Insurance |
| ALOFT BOLINGBROOK | 630.410.6367 | Hotels |
| ALORA DENTAL SPA | (630) 869-9000 | Dentists |
| ALORA MED SPA | (630) 869-9000 | Medspa |
| ALPHAGRAPHICS - LISLE/NAPERVILLE | (630) 964-9600 | Printing |
| AL'S PIZZA AND CATERING | 630-964-6688 | Restaurants |
| ALTER BREWING + KITCHEN | (630) 819-8411 | Restaurants |
| ALTER BREWING COMPANY | (630) 541-9558 | Breweries |
| AM 560 THE ANSWER (WIND RADIO) & SALEM SURROUND DIGITAL MEDIA | (847) 871-1510 | Media |
| AMALGAM MARTIAL ACADEMY | (630) 296-7515 | Martial Arts Instruction |
| AMERICAN CANCER SOCIETY | 312.372.0471 | Non-Profit Organizations |
| AMERICAN PETROLEUM INSTITUTE | (202) 682-8141 | Political Organizations |
| AMERICRAFT, INC. | (630) 541-8692 | Remodeling Contractor |
| AMLI AT SEVEN BRIDGES | (630) 969-7777 | Apartment Complex |
| ANCESTRAL SOULS WISDOM SCHOOL | 630-802-0947 | Health and Wellness |
| ANDY'S FROZEN CUSTARD | | Restaurants - Counter Service |
| ANYTIME FITNESS WOODRIDGE | (630) 296-9990 | Health & Fitness |
| ARAMARK CORPORATION | (630) 271-2000 | Conference Center |
| ARGONNE NATIONAL LABORATORY | (630) 252-5562 | |
| ARIAGROUPHR | (630) 884-8400 | |
| ASHYANA BANQUETS | (630) 964-7090 ; 630-699-9409 | Banquet and Private Event Space |
| ASSISTANCE HOME CARE | (331) 260-0444 | |
| ASSISTANCE HOME CARE | 331-260-0444 | Home Care |
| ASTRAEA CLEANING LLC | (630) 656-3616 | Cleaning Services |
| AT&T | (312)509-1618 | Telecommunications |
| AT&T | (630) 933-9900 | Telecommunications |
| ATHLETICO DOWNERS GROVE | (630) 724-0977 | Health Care Provider |
| ATTORNEY MARY L. COLLINS | (630) 241-7903 | |
| AUTO-MOTIVE | (630) 541-3522 | |
| AVAIL FINANCIAL PARTNERS | (864) 360-0374 | Wealth Management |
| THE AVERY COONLEY SCHOOL | (630) 969-0800 | Education |
| AVISON YOUNG - MARTY MIKAITIS | (847) 886-0224 | |
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