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Meet the Leadership Team at Centerline Machine

Learn about the leadership team at Centerline Machine, and our parent company, Dielectric Manufacturing:

Mike Esser, Dielectric Manufacturing/Centerline Machine

Mike Esser Sr., President and CEO

Mike Esser Sr. has been CEO of the company since 2008, and has been with the company since 1980. In his leadership role, Mike makes sure Dielectric Manufacturing has the resources and expertise necessary to fulfill the company’s promises to its customers.

He holds a bachelor of business administration degree in finance and marketing from St. Norbert College in De Pere, Wis.

Outside of work, Mike enjoys spending time with family, traveling, golfing and fishing.


Michael Esser Jr., Dielectric Manufacturing/Centerline MachineMichael Esser Jr., Chief Financial Officer

Michael Esser Jr. joined the company on a full-time basis in 2011. He currently is the company’s chief financial officer.

Michael holds bachelor of science degrees in economics from the University of Wisconsin-Madison, and in finance from DeVry University. He participates in a Vistage business leaders roundtable group.

Chris Esser, Dielectric Manufacturing/Centerline MachineChris Esser, Chief Technology Officer

Chris Esser joined the company full-time in 2014, and currently is the company’s chief technology officer. He helps Dielectric Manufacturing customers succeed through Continuous Improvement projects, building capacity, and expanding capabilities to meet customer needs. He holds a bachelor of applied science degree in mechanical engineering from UW-Milwaukee. Chris participates in a Vistage (formerly TEC) business leaders roundtable group. Outside of work, Chris enjoys golfing, photography, playing the guitar, and working out at the gym. He is a member of the Wisconsin Golf Association, and the Waukesha Men’s Golf Club, and serves as a judge for Project Lead the Way – a Science, Technology, Engineering and Math (STEM) program at Catholic Memorial High School in Waukesha, Wis.

David Pozorski, Dielectric Manufacturing/Centerline Machine

David Pozorski, Chief Operating Officer

David Pozorski joined the company as chief operating officer in August 2022. He is a people-first operations executive with 30 years of experience in business leadership, finance, sales, change management, production, engineering, Lean Operations, process management, efficiency enhancement, and workforce safety and compliance implementation. He’s a strategic leader who excels in critical listening, situational assessment and definitive decision making. He has the ability to address complex issues in a cohesive and collaborative manner with the proper allocation of workforce talent and process standardization. David is a high-energy, growth-minded executive who’s passionate about tackling challenges and believes that incorporating humor and fun into work is essential. His career path has been atypical since he’s worked in seven different industries – from mining to coatings to industrial and utility brushes to agriculture – and under a variety of ownership structures – private equity, privately held and publicly traded. He’s led acquisitions and integrations, domestic and international facility and plant expansions and has experience working in union and non-union organizations. Parallel to his corporate career, he served as a volunteer firefighter, EMT and dive rescue specialist for 13 years. Outside of work, David has a strong sense of community and giving back. Through coursework at WCTC, he secured his firefighter and EMT certification. He went on to become a dive rescue specialist and was a captain for the Okauchee, Wis., Fire Department and lieutenant for the Lake Country Fire Department. He’s also volunteered his time as program director for an area volleyball club. David enjoys spending much of his time with his children, assisting their home projects, camping and movies. When not relaxing with the cats, David can be found in the kitchen trying out new recipes.

Bob Wilms, Dielectric Manufacturing/Centerline Machine

Bob Wilms, General Manager – Centerline Machine

Bob Wilms has been with Centerline Machine since 2013, and currently serves as general manager of the plant. He helps Centerline Machine customers succeed by developing a partnership with them through open, honest and timely communication, and by understanding their business and what’s importance for their success. Outside of work, he enjoys spending time with his grandchildren, and, with his wife, leading Dave Ramsey’s Financial Peace University at their church. He is a volunteer and board member for Father Carr’s Place 2B – a life enrichment center that ministers to the poor and that provides family and community activities.

Jamie Benter; Centerline leadershipJamie Benter, Business Development Manager

Jamie Benter has work experience rich in both sales and mechanical design, giving him the expertise to collaborate with customers on the front end of their projects. He strives to build relationships with customers for the initial sale as well as sales for years to come. Jamie chose to join Dielectric and Centerline because they align with his personal values and the positive culture is apparent. Jamie is married with two teenage sons, spending much of his free time with their various sport activities. When their sports seasons are done, you can find Jamie fishing, bird hunting, or golfing.

Kristal Butts, Dielectric Manufacturing/Centerline MachineKristal Waeltz, Vice President – Human Resources

Kristal Waeltz joined the company in August 2022 as vice president for human resources. She holds a master’s degree in Human Resources and Labor Relations from UW-Milwaukee, and is a member of the Society for Human Resources Management (SHRM). She enjoys spending time with her daughters, cooking, and maintaining a busy social life with family and friends. In her role with Dielectric Manufacturing, Kristal provides direction in hiring, administration and training. As a culture creator and facilitator, she aims to consistently deliver a positive experience to drive productivity and fun in the workplace.

Sarah Vetter, Dielectric ManufacturingSarah Vetter, Director of Supply Chain

Sarah Vetter joined Dielectric Manufacturing in August 2023 as Director of Supply Chain. She helps Dielectric Manufacturing customers succeed by understanding the extended value stream at Dielectric. She leads her teams to recognize areas of greatest opportunities to reduce waste and cost while increasing customer value. Sarah earned a master’s degree in business and finance from Liberty University in Lynchburg, Va. Outside of work, she enjoys volleyball, bowling, all things music (including her band “Shut the Front Door”), and spending time with her family.

Amber Fry, Dielectric Manufacturing, Iowa plantAmber Fry, General Manager, Dielectric Manufacturing Iowa Plant

Amber Fry, a 27-year employee at Dielectric Manufacturing’s Lake Mills, Iowa, plant, was named General Manager of that operation in October, 2023.

Among her duties is making sure that the plant produces quality products on time. Outside of work, she likes spending time with her husband and dog, biking, kayaking, camping, or enjoying a good book.

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