DETROIT LAKES, Minnesota (July 1, 2025) SJE®, the global industry leader in control systems, proudly celebrates its 50th anniversary – a milestone that reflects five decades of passion, purpose-driven innovation, and trusted partnerships with global customers and communities across the U.S., China, and Mexico.

Founded in 1975, SJE has built a reputation for delivering reliable, high-performance control solutions through the seamless integration of engineering and manufacturing. From residential to commercial, municipal, and industrial applications, SJE has become one of the most trusted names in control solutions, helping to shape the future of the control solution industry.

With more than 800 employees, 65 design and utility patents, 15 locations in three countries, and nine product brands, SJE continues to lead with innovation and quality. Its legacy is powered by a relentless drive to solve problems and protect the world’s most vital resource.

“To reach 50 years in business is both an honor and a reflection of the extraordinary people behind our success,” said Bjorn Haldorsen, CEO of SJE. “As we celebrate this milestone, we’re not just reflecting on our history – we’re honoring the employees, customers, and partners who have shaped it. Thank you for helping us build a proud past and a promising future.”

SJE is comprised of a family of industry-recognized brands such as: SJE Rhombus, CSI Controls, PRIMEX, Ohio Electric Control (OEC), Revere Control Solutions, Horlick, ICON Technologies, Altronex, and L.W. Allen Pumps.

SJE’s journey began when Steve Johnston had a bold vision to help his neighbor solve a septic holding tank issue. The first product, the Tank Alert Alarm, helped to ensure septic tanks did not overflow. This product laid the foundation for decades of trusted performance and continuous growth.

Today, SJE engineers and manufactures high-quality products and control solutions that serve customers in the water, wastewater, energy, and industrial OEM markets. The SJE products and solutions have an impact on the environment, improve lives, and protect local communities.

Looking ahead, SJE remains committed to expanding its impact through investing in the talent that will drive the next era of product innovation, entering new markets, and strategic acquisitions. Its mission remains clear: to deliver reliable, efficient systems that help safeguard the planet’s most essential resource – water.

For more information on the SJE brands, visit https://sjeinc.com/our-brands.

About SJE Inc.

SJE® was founded in 1975.  Over 50 years later, SJE has evolved into a global industry leader in control systems, operating throughout the United States and Canada, as well as in international markets.  SJE, a privately held company, is comprised of over nine well-respected brands known for their innovation and quality. SJE has locations throughout the United States, Mexico, and Asia. SJE offers a wide variety of control products for residential, commercial, municipal, water, wastewater, and industrial markets, representing the most reliable integration of engineering and manufacturing capabilities in the industry.  To learn more, visit www.sjeinc.com.