In 1950, C.R. Marcum founded General Equipment & Manufacturing Company Incorporated - a company that built products to increase safety and efficiency in mine transportation systems.

Eight years later, C.R. created what would be his fortune: the GO Switch - a proximity limit switch for industrial applications. The unexpected success of the GO Switch fueled the company's steady growth for decades.

When the second generation Marcum, Rob, served as president after C.R.'s death, the GO Switch name grew to international prominence, so much so that most people began referring to the company by its better known brand name.

In 1997, the leadership was passed down to yet another Marcum: Rob's son, and C.R.'s grandson, Charlie. Having learned from both, it's the youngest Marcum who now has a vision and goal for the future of this company.

Long known for the GO Switch - a foundation-building product - the company now has numerous products, advancements and capabilities steering its future direction. And with a third generation Marcum leading the way, positive change is in the air.

The Lumitech line features Integrated Valve Controllers, Low Profile Valve Monitors, Puck Position Monitors and BriteLite LED Position Indicators. And the latest venture, Status, is a Valve Identification System that allows easy exchange of critical valve package information. The complete package provides a secure, paperless system that records, maintains and downloads valve maintenance and performance data records. On the GO Switch side, the unparalleled Leverless Limit Switch Technology and the complete line of GO Switch products are still offered. The company is even competing for nuclear business with NuProx, the world's first nuclear qualified proximity switch.

Today, TopWorx serves a diverse customer base which includes chemical, oil and gas, pulp and paper, power generation, mining, steel and aluminum, pharmaceutical, food and beverage and numerous manufacturing businesses.

Products of unparalleled quality. A family of dedicated employees. A Global Distribution Network made up of the finest companies in each local market. And state-of-the art products. These strengths have made this company what it is today.

As you can see, TopWorx is a different kind of company. With a tradition of deep values and integrity, and a rock-solid foundation of stability and industry respect, history has brought the company to an exciting time - a time of change with TopWorx.

Electro-Kinetics proudly distributes and supports GO Switch products. Our collaboration and experience with Topworx enables us to provide customers with top quality solutions, performance, and reliability. Please call 877.595.6700 today to access the knowledge, innovation, and selection provided by Topworx and Electro-Kinetics.