| Name | Phone | Category |
| S. G. ARCHITECTS INC. | (630) 969-9279 | Architects |
| S.W. ANDERSON COMPANY | (630) 964-2600 | |
| SAMARACARE | (630) 357-2456 | Non-Profit Organizations |
| SANDHILL COFFEE | (708) 768-1262 | |
| SBK LAW GROUP | (630) 427-4407 | |
| SCHAUMBURG BOOMERS | (847) 461-3695 | Sports Team |
| SEASPAR | (630) 960-7600 | Non-Profit Organizations |
| SEBOLD CAPITAL MANAGEMENT | (630) 548-9700 | Wealth Management |
| SERAPHX DIGITAL CONSULTING | (312) 548-1219 | Advertising & Marketing |
| SERVICEMASTER DSI | (630) 833-0888 | |
| SERVPRO OF WOODRIDGE/BOLINGBROOK | (630) 771-1720 | Clean-up & Restoration |
| SEVEN BRIDGES GOLF CLUB | (630) 964-7777 | Golf |
| SEVEN BRIDGES ICE ARENA | (630) 271-4400 | |
| SHANAHAN'S OF WOODRIDGE | (630) 985-5945 | Restaurants |
| SHARING CONNECTIONS | (630) 971-0565 | Non-Profit Organizations |
| SHINE PEDIATRIC DENTISTRY | (630) 743-6700 | Dentists |
| SHOP AND SAVE MARKET | (630) 427-6800 | Gourmet Foods |
| SHRED DOC/COMMUNITY HIGH SCHOOL DISTRICT 99 | (630) 963-0060 | Document Destruction |
| SIEMENS | (847) 215-1000 | International Business Services |
| SIMPLEMAC SOLUTIONS INC. | (630) 435-6552 | Computer Sales & Services |
| SIMPLY BEAUTIFUL DAY SPA AND SALT THERAPY | (630) 620-1188 | Day Spa |
| SKIN DEEP ESTHETICS | (630) 863-6153 | Spa |
| SKYWAY BEHAVIORAL HEALTH | (224) 970-1022 | Mental Health |
| SLAV POLINSKI HOMES - @PROPERTIES | (630) 624-9615 | |
| SMILE STUDIO 87 | (630) 427-2019 | Dentists |
| SMITH AMUNDSEN, LLC - STEVEN JADOS | (630) 587-7934 | Attorneys - Business |
| SOAP OPERA LAUNDROMAT, INC. - DOWNERS GROVE | (630) 810-1860 | Laundromat |
| SOAP OPERA LAUNDROMAT, INC. - WOODRIDGE | (630) 427-0504 | |
| SOCCER 2000 | (630) 241-9500 | Soccer Shoes, Apparel & Uniforms |
| SOLA SALONS DOWNERS GROVE | (773) 426-2195 | Beauty Salon & Day Spa |
| SPI STAFFING | (312) 898- 0555 | Staffing |
| SPRINGHILL SUITES BY MARRIOTT CHICAGO/BOLINGBROOK | (630) 759-0529 | |
| ST. JOSEPH CHURCH AND SCHOOL | (630) 964-0216 | |
| ST. MARY OF GOSTYN CATHOLIC CHURCH & SCHOOL | (630) 737-9621 | Churches |
| STATE FARM INSURANCE - JONATHAN TWITTY | (630) 964-0646 | Insurance |
| STEC ROOFING | (630) 971-1589 | Roofing |
| STEPHENS PLUMBING & HEATING, INC. | (630) 968-0783 | Plumbing Contractors - Residential |
| STERLING STUDIO KITCHEN & BATH | (630) 541-8692 | Kitchen and Bath Remodeling |
| SUBURBAN LIFE MEDIA | (630) 368-1100 | Newspapers |
| SULLIVAN & ASSOCIATES, LLC | (630) 615- 9809 | Attorneys |
| SUPERCDA ATHLETICS | (847) 975-5500 | Recreation Facilities |
| SUPERIOR AMBULANCE SERVICE | (630) 832-2000 | Ambulance |
| SUSAN MYKET, PHD AND ASSOCIATES | 630) 355-9002 | Child & Family Therapy |
| SYNAPSE HOUSE | (877) 932-1120 | Rehabilitation Center |