New Owners Take the Controls at Mixer Systems, Inc.


New Owners Take the Controls at Mixer Systems, Inc. for the First Time in a Generation.

Pewaukee, Wis., July 25, 2023 — Mixer Systems, Inc., North America’s premier manufacturer of mixing and batching equipment for the concrete, glass, and environmental industries, today announced new ownership and promotions of the management team.

Family owners Lesley Hill and David Boles, who shared leadership of the company, sold a majority stake to a group comprised of a Milwaukee-based growth partner and Mixer executives. This is the first change of ownership outside the family since Mixer was founded by William Boles, father of Hill and David Boles, in 1979. The siblings retain minority ownership in the company.

As part of the ownership transition, Doug Duley, president of Mixer, has been promoted to CEO, and Nicholas Passint, general manager, has become president. In addition, Scott Adams, general manager of the DustMaster division, will be expanding his role with Mixer and taking on the GlassMaster product line.

“We’re extremely grateful to Lesley and David for their steady leadership in guiding Mixer forward after the death of William Boles in 2014,” said Duley. “While we’ll miss their energy and spirit, we congratulate them on their retirement and wish them well in spending more time with family and pursuing their passions outside of Mixer.”

The ownership and management changes are expected to bring new capital to Mixer and help position the company for significant growth in the years to come, while also maintain its innovative tradition. Mixer presently makes the largest line-up of mixers and related equipment in its industry.

“This is a truly exciting time for the company as we look to a new chapter of being an industry leader and continuing to provide the best possible solutions for our customers,” said Passint. “Our products will still proudly wear the ‘Made in America’ label to reflect the engineering, craftsmanship, and reliability for which Mixer is known worldwide.”

Contact: Nicholas Passint, 608-213-6429 mobile,