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Founded in 1975, SJE has built a reputation for providing reliable, high-performance control solutions through the integration of engineering and manufacturing.
Detroit Lakes, Minnesota – July 1, 2025 – SJE, the global industry leader in control systems, proudly celebrates its 50th anniversary. This reflects 50 years of passion, purpose-driven innovation and trustworthy partnerships with global customers and communities in the US, China and Mexico.
Founded in 1975, SJE has built a reputation for providing reliable, high-performance control solutions through seamless integration of engineering and manufacturing. From residential to commercial, city and industrial applications, SJE has become one of the most reliable names in control solutions, helping to shape the future of the control solutions industry.
With over 800 employees, 65 design and utility patents, 15 locations in three countries and nine product brands, SJE continues to lead innovation and quality. Its heritage features relentless drives to solve problems and protect the world’s most important resources.
“To reach 50 years in business is an honor and reflects the extraordinary people behind our success,” said SJE CEO Bjorn Haldorsen. “When we celebrate this milestone, we are not just reflecting history, we are celebrating the employees, customers and partners who shaped it.
SJE is made up of families of industry-aware brands such as SJE Rhombus, CSI Controls, Primex, Ohio Electric Control (OEC), Revere Control Solutions, Horlick, Icon Technologies, Altronex, and LW Allen Pumps.
The SJE journey began when Steve Johnston had a bold vision to help his neighbors solve the problem of septic tanks. The first product, the Tank Alert Alarm, helped to prevent the septic tank from overflowing. This product has laid the foundation for decades of reliable performance and continuous growth.
Today, SJE engineers and manufactures high quality product and control solutions that serve customers in the water, wastewater, energy and industrial OEM markets. SJE products and solutions impact the environment, improve lives and protect the local community.
Looking ahead, SJE continues to work to drive the next era of product innovation and expand its impact through investments in new markets and talent to enter strategic acquisitions. Its mission is to provide a reliable and efficient system that helps protect the planet’s most important resource, water.
About Sje Inc.
SJE was founded in 1975. More than 50 years later, SJE has evolved into a global industrial leader in control systems operating across the US and Canada, as well as in the international markets. A private company, SJE is made up of more than nine respected brands known for their innovation and quality. SJE has locations all over the US, Mexico and Asia. SJE offers a wide variety of controlled products for residential, commercial, local government, water, wastewater and industrial markets representing the most reliable integration of engineering and manufacturing capabilities in industry.
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