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Our History

Founded in 1963 by University of Wisconsin professor Ron Daggett, Engineering Industries (EI) began as a small molding company dedicated to solving complex engineering challenges. From the start, Ron focused on collaboration and precision, helping customers integrate plastics into demanding applications such as one of the first artificial heart valves for human use and early work with battery manufacturers to replace cardboard seals with plastic alternatives.

What began as a one-man operation in the basement of Ron’s home soon expanded into a full manufacturing business built on customer trust and technical problem-solving. His ingenuity, commitment to service, and engineering discipline continue to define how EI operates today.

Pressing Forward
Since 1963

Over six decades, EI has evolved from a single-press operation into a modern custom plastic injection molding manufacturer serving multiple industries. The move to Verona, Wisconsin, in the 1970s marked a turning point in the company’s growth. Five building expansions followed, each reflecting new investments in automation, technology, and people.

The focus has never shifted from engineering excellence. As customers’ products became more complex, EI advanced alongside them, refining tooling methods and expanding automation to support intricate parts with consistency and speed.

Close-up of an industrial injection molding machine in a factory, showing open metal mold halves, wires, and robotic components, with another injection molded machine visible in the blurred background.
Three men sit around a table in a meeting room, discussing plastic manufacturing diagrams displayed on a laptop and a large screen. Notebooks and papers are on the table as they smile and engage in conversation.

The Stories That
Shape Us

Every milestone at EI reflects teamwork and shared ownership. From Ron Daggett’s early innovations to today’s molding floor, progress has always come from people who take pride in doing things the right way.

Employees continue to carry forward the same curiosity and craftsmanship that built the company’s reputation decades ago. They find new ways to improve processes, strengthen quality systems, and support customers with the same integrity that defined EI’s beginning.

From Humble Beginnings to High Tech

EI’s growth has been guided by the idea of forward thinking: proactively anticipating customer needs and industry trends. Each investment in automation, robotics, and data-driven systems has enhanced productivity while creating opportunities for employees to learn and lead.

President John Ballweg believes the same principle that started EI continues to sustain it today: invest in technology, invest in people, and always deliver dependable results.

A person operates a TRAK TRL 1845SX lathe machine, pressing buttons on a digital control panel in a workshop. The individual, involved in plastic manufacturing, wears safety glasses and a navy blue shirt.

With a foundation built on engineering precision and a culture grounded in ownership, EI continues pressing forward and is engineered to last.