| Zhejiang Huazhang Automation Equipment Co. Ltd. | Hangzhou | | www.huazhangautomation.com |
| Zesco Inc. | Recksville | Ohio | www.zescoinc.com |
| Zentron Technosys Pvt Ltd | Pune | | |
| Withus Tech Co., Ltd | Anyang-si | Gyeonggi-do | www.wutech.co.kr |
| Winkle Electric | Youngstown | Ohio | www.winkle.com/productscategory.htm |
| Winkle Electric | Erie | Pennsylvania | www.winkle.com/productscategory.htm |
| WILLE ELECTRIC SUPPLY CO | Modesto | California | www.willeelectric.com |
| WILLE ELECTRIC SUPPLY CO | Stockton | California | www.willeelectric.com |
| Wesco Distribution Inc | Renton | Washington | www.wesco.com |
| WESCO DISTRIBUTION INC | Portland | Oregon | www.wesco.com |
| WESCO DISTRIBUTION INC | Spokane | Washington | www.wesco.com |
| WESCO - KENNEWICK | Kennewick | Washington | www.wesco.com |
| WESCO - ANCHORAGE | Anchorage | Alaska | www.wesco.com |
| Werner Electric | Pewaukee | Wisconsin | www.wernerelectric.com |
| Welotec GmbH | Laer | | www.welotec.com |
| Welotec GmbH | | | www.welotec.com |
| WALKER INDUSTRIAL | Newtown | Connecticut | www.walkerindustrial.com |
| Wachendorff Prozesstechnik GMBH & Co. KG | Geisenheim | | www.wachendorff-prozesstechnik.de/emg |
| Unlimited Electro Automation and Controls, Inc. | San Diego | California | www.unlimitedelectro.com |
| United Electric Supply Company, Inc. | New Castle | Delaware | www.unitedelectric.com |
| Triple H Specialty | Hazlehurst | Georgia | www.tripleh.com |
| Triad Automation | Browns Summit | North Carolina | www.triadautomation.com/ |
| Tri-Phase Automation | Pewaukee | Wisconsin | www.tri-phase.com |
| Total Automation Solutions | Alkhuwair | Masqat | www.tasind.com |
| TORPEY DENVER INC | Broomfield | Colorado | www.torpeydenver.com |
| TMMI | Wheat Ridge | Colorado | www.tmmi.com |
| Thorp Controls Automation Solutions | Wichita | Kansas | WWW.BARR-THORP.COM |
| Thorp Controls Automation Solutions | Springfield | Missouri | www.barr-thorp.com |
| Thorp Controls Automation Solutions | Omaha | Nebraska | www.barr-thorp.com |
| Thorp Controls Automation Solutions | Shawnee Mission | Kansas | www.barr-thorp.com |
| Thermal Devices, Inc. | Mt. Airy | Maryland | www.thermaldevices.com |
| The Proud Company | Pittsburgh | Pennsylvania | www.proudco.com |
| TEXTROL INC | Dallas | Texas | www.textrolinc.com |
| Texas Automation Systems LLC | Grand Praire | Texas | www.txautosys.com |
| Telestar S.r.l | Vaprio d'agogna | | www.telestar-automation.it |
| Tecnologia y Control Ltda. | Santiago | | www.tecnocontrol.cl/ |
| Tecnología Interactiva | Cartago | Cartago | www.tecnologiainteractiva.com |
| TECNOLAND IROISE | Gouesnou | | www.tecnoland.fr |
| TECNOLAND | La Chapelle sur Erdre | | www.tecnoland.fr |
| TDS Technology Pte Ltd | Singapore | | www.tdstech.com |
| TCIC, Inc. | Golden Valley | Minnesota | http://www.tcicinc.com/ |
| TAS India Private Ltd | Pune | | www.tasind.com |
| Tang Minh Phat Trading and Service Co., Ltd | Thu Duc City | Ho Chin Minh | www.tmpvietnam.com |
| Symbiotic Automation | Bangalore | | www.symbiotic-systems.com |
| SURE CONTROLS | Greenville | Wisconsin | www.surecontrols.com |
| Strand Network Pvt. Ltd. (OPC) | Pune | Maharashtra | |
| Stoneway Electric Supply | Spokane | Washington | www.cesco.com |
| Steven Engineering Inc | Corona | California | www.steveneng.com |
| STEVEN ENGINEERING INC | South San Francisco | California | www.steveneng.com |
| Steven Engineering | Portland | Oregon | www.stevenengineering.com |
