| Shingle & Gibb | Powhatan | Virginia | www.shingle.com |
| Shingle & Gibb | Pittsford | New York | www.shingle.com |
| Shoshin Corporation | Chuo-ku – Tokyo | Tokyo | www.shoshin.co.jp |
| SIA Elfa Distrelec | LV-Rīga | | www.distrelec.com |
| Sichuan Zhiyuan Control Equipment Co., LTD | Chengdu City | Sichuan | www.zy-cs.com |
| Sistelec Soluciones | Pamplona | | www.sistelec.es |
| Softing Italia SRL | Cesano Boscone | | www.softingitalia.it |
| Sonic Automation Ltd. | Prawet Disctrict | Bangkok | www.sonicautomation.co.th |
| Southern Automation Sales Inc | Lafayette | Louisiana | www.southern-automation.com |
| Southern Controls Inc | Montgomery | Alabama | www.southerncontrols.com |
| Southern Controls Inc | Bessemer | Alabama | www.southerncontrols.com |
| Southern Controls Inc | Decatur | Alabama | www.southerncontrols.com |
| Southern Controls Inc | Mobile | Alabama | www.southerncontrols.com |
| Southern Controls Inc | Opelika | Alabama | www.southerncontrols.com |
| Southern Controls Inc | Baton Rouge | Louisiana | www.southerncontrols.com |
| Southern Industrial Electronics | Albany | Georgia | www.siealb.com |
| Sritech Electronics & Systems Pvt LTD | Kushaiguda | Hyderabad | | www.sritech.in |
| STANDARD ELECTRIC SUPPLY | Indianapolis | Indiana | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Warsaw | Indiana | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Chicago Ridge | Illinois | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Madison | Wisconsin | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Milwaukee | Wisconsin | www.standardelectricsupply.com |
| STANDARD ELECTRIC SUPPLY | Appleton | Wisconsin | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Sheboygan | Wisconsin | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Eau Claire | Wisconsin | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Stevens Point | Wisconsin | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Wood Dale | Illinois | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Champaign | Illinois | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Machesney Park | Illinois | www.sescowi.com |
| Startech FZE | Sharjah | | www.startechgcc.com |
| State Electric Supply Company | Huntington | West Virginia | www.stateelectric.com |
| Steiner Electric Company | Loves Park | Illinois | www.steinerelectric.com |
| Steiner Electric Company | Elk Grove Village | Illinois | www.steinerelectric.com |
| Sterling Engineering Solutions | Salem | Virginia | www.sterlinges.com |
| Steven Engineering | Portland | Oregon | www.stevenengineering.com |
| STEVEN ENGINEERING INC | South San Francisco | California | www.steveneng.com |
| Steven Engineering Inc | Corona | California | www.steveneng.com |
| Stoneway Electric Supply | Spokane | Washington | www.cesco.com |
| Strand Network Pvt. Ltd. (OPC) | Pune | Maharashtra | |
| SURE CONTROLS | Greenville | Wisconsin | www.surecontrols.com |
| Symbiotic Automation | Bangalore | | www.symbiotic-systems.com |
| Tang Minh Phat Trading and Service Co., Ltd | Thu Duc City | Ho Chin Minh | www.tmpvietnam.com |
| TAS India Private Ltd | Pune | | www.tasind.com |
| TCIC, Inc. | Golden Valley | Minnesota | http://www.tcicinc.com/ |
| TDS Technology Pte Ltd | Singapore | | www.tdstech.com |
| Tecnología Interactiva | Cartago | Cartago | www.tecnologiainteractiva.com |
| Tecnologia y Control Ltda. | Santiago | | www.tecnocontrol.cl/ |
| Telestar S.r.l | Vaprio d'agogna | | www.telestar-automation.it |
| Texas Automation Systems LLC | Grand Praire | Texas | www.txautosys.com |
| TEXTROL INC | Dallas | Texas | www.textrolinc.com |
