| Name | Phone | Category |
| CADENCE KITCHEN & CO | (630) 442-7631 | |
| THE CAPITAL GRILLE | (630) 627-9800 | Restaurants |
| CAPRI OF DOWNERS GROVE | (630) 241-0695 | |
| CAREER & NETWORKING CENTER | (630) 961-5665 | |
| CARNIVORE AND THE QUEEN | (630) 541-9951 | |
| CARRABBA'S ITALIAN GRILL | (630) 427-0900 | Restaurants |
| CASA MARGARITA | (630) 968-0768 | Restaurants |
| CASSIM RUG GALLERY INC. | (630) 324-6567 | Flooring: Residential and Commercial |
| CATALYST COACHING & TRANSFORMATION | (630) 981-4747 | Coaching |
| Derek Cazeau | (630) 312-2740 | |
| CBIZ | (630) 505- 3615 | Business Services |
| CENTRE FOR CHIROPRACTIC HEALTH | (630) 268-2680 | Chiropractors |
| CHAMBER630 | (630) 968-4050 | Event Planning |
| CHAWLA ORTHODONTICS | (630) 914-6060 | Orthodontist |
| CHICAGO ORIGINAL LIMOUSINE | (224) 800-4114 | Limousine Service |
| CHOOSE DUPAGE | (331) 401-5822 | Economic Development |
| CHOSEN HEALTH AND WELLNESS | (773) 946-6660 | Health and Wellness |
| CHRIS MCNEIL, MBA | (630) 297-2139 | Wealth Management |
| CHUCK'S SOUTHERN COMFORTS CAFE | (331) 431-4000 | Restaurants |
| CHUHAK & TECSON, P.C. | (312) 444-9300 | Attorneys |
| CJ COMMERCIAL REAL ESTATE SOLUTIONS | (630) 881-6260 | Real Estate - Commercial - Business |
| CLEAN BRIGHT BEYOND | (312) 772-2472 | Cleaning Services |
| CMIT SOLUTIONS OF CHICAGO WEST | (630) 596-5445 | Managed IT Services |
| CODE RED SOLUTIONS, LLC | (708) 516-4837 | Safety/Wellness Education |
| COLD STONE CREAMERY - WOODRIDGE | (630) 322-9640 | Ice Cream and Cakes |
| COLLEGE OF DUPAGE | (630) 942-3823 | Education |
| COMCAST BUSINESS | (630) 617-1160 | Telecommunications |
| COMMUNITY ADULT DAY CENTER | (630) 968-1060 | Non-Profit Organizations |
| COMMUNITY BANK OF DOWNERS GROVE | (630) 968-4700 | Financial Services - Business |
| COMMUNITY HIGH SCHOOL DISTRICT 99 | (630) 795-7100 | Education |
| COMPARION INSURANCE - STEVEN GOLDSMITH | (630) 492-5380 | Insurance |
| COMPARION INSURANCE- MIKE BUCHENAUER | (815) 230-6342 | |
| COMPASS MORTGAGE | 818-4596 | |
| COMPUDOPT, INC. | (773) 828-3951 | Non-Profit Organizations |
| CONCEPT CONSTRUCTION LLC | (312) 835-9804 | Remodeling Contractor |
| CONCEPT ONE MEDIA, INC. | (630) 810-9303 | |
| CONNIE'S PIZZA | (331) 291-5047 | Restaurants |
| CONNOR & GALLAGHER ONESOURCE | (630) 810-9100 | Employee Benefit Programs |
| CONTINUING EDUCATION PRODUCTIONS, INC. | (228) 424-2956 | Business Development |
| CONTOUR PLASTIC SURGERY & MED SPA / REVIVE MALE | (630) 426-6019 | Cosmetic Surgery |
| CONVERGENCY LLC | (312) 806-2024 | Information Technology Services |
| COOPER'S HAWK WINERY & RESTAURANT | (331) 215-9463 | Restaurants |
| CORPORATE STRATEGIES & SOLUTIONS, A SANDLER TRAINING CENTER | (630) 778-1500 | |
| COSMIC CLEANING SERVICES, LLC | (708) 215-1707 | Cleaning Services |
| COST SEGREGATION SERVICES, INC. (CSSI) | (773) 931-6498 | |
| COSTELLO JEWELRY CO. | (331) 291-5062 | Jewelers |
| COUNTRY FINANCIAL - ALFRED YANEZ | (630) 279-6429 | Insurance |
| CRAY, KAISER LTD. | (630) 953-4900 | Accountants - Certified Public |
| CRS DESIGNS, INC. | 630-427-7288 | Kitchen and Bath Remodeling |
| CSC COMMUNICATIONS SUPPLY CORPORATION | (630) 221-6543 | Construction |
| CULVERS OF DOWNERS GROVE/LISLE | (630) 434-9401 | Restaurants |
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