SJE, Inc.

SJE, Inc., founded in 1975 and headquartered in Detroit Lakes, Minnesota, is a controls technology company organized into three divisions serving water, wastewater, and industrial markets across the US, Canada, and globally. Its Control & Level-Sensing Technologies division includes SJE Rhombus, which manufactures Build-A-Panel, EZ Series, NEX Series, and Installer Friendly Series control panels along with Tank Alert alarm systems, float switches, and the Endura PB constant pressure controller, and CSI Controls, which produces liquid level control panels, alarms, floats, and accessories from a 52,000 sq ft UL-listed facility in Ashland, Ohio. The Engineered Control Solutions division encompasses Altronex (custom pump automation and flow control systems from Madison, Wisconsin), Horlick (relay-based duplex stations through PLC-based SCADA motor control centers from Randolph, Massachusetts), PRIMEX (pump control panels and web-hosted SCADA from Plymouth, Minnesota and Largo, Florida), ICON Technologies (low and medium voltage VFDs and solid-state motor control from Florida), L.W. Allen (process control systems in Madison, Wisconsin), Ohio Electric Control (founded 1978 in Ashland, Ohio), LangeTech (automation consulting and programming), and Revere Control Solutions (a top-15 global system integrator since 1980). The Cloud Connected Solutions division includes AMI Global, providing IIoT remote connectivity from Las Vegas. SJE won the 2026 IoT Breakthrough Award for Overall Smart City Solution of the Year.