| Sterling Engineering Solutions | Salem | Virginia | www.sterlinges.com |
| Steiner Electric Company | Elk Grove Village | Illinois | www.steinerelectric.com |
| Steiner Electric Company | Loves Park | Illinois | www.steinerelectric.com |
| State Electric Supply Company | Huntington | West Virginia | www.stateelectric.com |
| Startech FZE | Sharjah | | www.startechgcc.com |
| STANDARD ELECTRIC SUPPLY | Machesney Park | Illinois | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Champaign | Illinois | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Wood Dale | Illinois | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Stevens Point | Wisconsin | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Eau Claire | Wisconsin | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Sheboygan | Wisconsin | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Appleton | Wisconsin | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Milwaukee | Wisconsin | www.standardelectricsupply.com |
| STANDARD ELECTRIC SUPPLY | Madison | Wisconsin | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Chicago Ridge | Illinois | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Warsaw | Indiana | www.sescowi.com |
| STANDARD ELECTRIC SUPPLY | Indianapolis | Indiana | www.sescowi.com |
| Sritech Electronics & Systems Pvt LTD | Kushaiguda | Hyderabad | | www.sritech.in |
| Southern Industrial Electronics | Albany | Georgia | www.siealb.com |
| Southern Controls Inc | Baton Rouge | Louisiana | www.southerncontrols.com |
| Southern Controls Inc | Opelika | Alabama | www.southerncontrols.com |
| Southern Controls Inc | Mobile | Alabama | www.southerncontrols.com |
| Southern Controls Inc | Decatur | Alabama | www.southerncontrols.com |
| Southern Controls Inc | Bessemer | Alabama | www.southerncontrols.com |
| Southern Controls Inc | Montgomery | Alabama | www.southerncontrols.com |
| Southern Automation Sales Inc | Lafayette | Louisiana | www.southern-automation.com |
| Sonic Automation Ltd. | Prawet Disctrict | Bangkok | www.sonicautomation.co.th |
| Softing Italia SRL | Cesano Boscone | | www.softingitalia.it |
| Sistelec Soluciones | Pamplona | | www.sistelec.es |
| Sichuan Zhiyuan Control Equipment Co., LTD | Chengdu City | Sichuan | www.zy-cs.com |
| SIA Elfa Distrelec | LV-Rīga | | www.distrelec.com |
| Shoshin Corporation | Chuo-ku – Tokyo | Tokyo | www.shoshin.co.jp |
| Shingle & Gibb | Powhatan | Virginia | www.shingle.com |
| Shingle & Gibb | Moorestown | New Jersey | www.shingle.com |
| Shingle & Gibb | York | Pennsylvania | www.shingle.com |
| Shingle & Gibb | East Hanover | New Jersey | www.shingle.com |
| Shenzhen Gen-tech Automation Technology Co. Ltd. | Shenzhen | | www.szgentech.com |
| Shelley Industrial Automation | North York | Ontario | www.shelley.com |
| Shanghai X&W Automation Engineering System Co., LTD | Shanghai | Shanghai | www.xwelec.com |
| Shanghai Beihao Engineering Equipment Co., Ltd. | Shanghai City | Shanghai | www.sh-beihao.com |
| Set-Point Control | Portland | Oregon | www.set-point.com |
| Sermax Automation Sdn Bhd | Shah Alam | Selangor | www.sermax.my |
| SensorGruppen AB | Limhamn | | www.sensorgruppen.se |
| Seltrol Inc. | Greenville | South Carolina | www.seltrol.com |
| Seltec Automation LLP | Hull | | www.seltec.co.uk |
| Seguridad y Control SA de CV | Guadalajara, Jalisco | Mexico | www.seguridadycontrol.com.mx |
| SAS Automation Pvt. Ltd. | Pune | Maharashtra | www.sasautomation.in |
| Sarlin Oy Ab | | | www.sarlin.com |
| Sarlin Oy Ab | Vantaa | | www.sarlin.com |
| Sarlin Oy Ab | | | www.sarlin.com |
