Since 1975, SJE Rhombus has grown to become a leading manufacturer of reliable, trouble-free liquid level controls for the water, wastewater and sewage industries throughout the United States and Canada, as well as into global markets. For over 40 years, we have been committed to providing engineering and manufacturing excellence to our customers. Our engineering expertise and broad range of core products uniquely positions the company to deliver the reliability and performance our customers require to solve their control solutions challenges.

We do business globally from multiple locations across the United States and China. Our custom PCB facility is located in New Hope, Minnesota. We acquired it (then named Compucon Co.) in 2007 in a strategic move to increase our engineering and PCB capabilities. Since then it has become an integral part of our business, providing PCBs to OEMs and creating them for our own products.

SJE Rhombus is a brand of SJE Inc., a leading provider of control solutions for a range of environments. Based in Minnesota.