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About Us

Industry leader in custom process solutions.

AD Process Equipment is an industry leader in custom process solutions, with a history dating back to 1979. In 2019, our team became part of the Gray family of brands, and together the companies deliver highly customized turnkey solutions primarily in the Food & Beverage industry. Other key industries include bakery and confectionery, pet food, specialty chemical, and pharmaceutical. In 2022, Spec Engineering merged with AD Process Equipment.


AD Process Equipment is closely aligned with Anderson Dahlen Inc., a Gray company, that has been providing world-class specialty alloy fabrication and equipment integration services for more than 75 years.


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About Us

In Numbers

  • 1979
  • 50+
Who We Are

AD Process Equipment’s purpose is to improve lives through innovation, responsibility, and trust, one project at a time.

Our Values

Our Team

A Talented Team For Your Complex Projects

With a centralized office and shop in Naperville, IL, our experienced team of process, design, and electrical engineers, along with project managers and fabricators, take our customers’ ideas from concept to completion.

From Our People

"We have such a talented team, and some of my favorite days are collaborating with them to solve complex issues internally and for our customers. "
Project Manager
"ADPE has a great group of people, is flexible, offers a rich benefits package, and is a fun environment with team building activities. There is a large variety of capabilities which leads to fun and interesting projects. "
Process Engineer
"I feel valued in my position and get the support I need to be successful. There is a great amount of opportunity for personal and professional growth. "
Human Resources

Join Our Team

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AD Process Equipment is a Gray company.

AD Process Equipment is your single source for system design and process equipment integration. Our experienced team works with customers to meet demands in bulk processing and material handling by providing practical design solutions that cater to their unique needs. Our personalized solutions in equipment and technology give customers a competitive edge in the ever-changing global marketplace.