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Meet the Leadership Team

We are dedicated to making a difference.

  • Don Tomann

    Chief Executive Officer

    Don has spent the past 25 years building and directing the operations at UMC. He believes that the cornerstone of UMC’s success is its culture, and Don understands the importance of an energized vision and well-articulated values in the success of an organization. In addition to helping drive growth and continuous improvement for UMC’s customers, Don is also passionate about UMC’s community involvement and contributions. The company historically donates 4% of profits to local and national nonprofit organizations that are making a positive impact, especially in the areas of education and training. Don is a strong advocate for family-owned businesses and the role they play in strengthening our communities and the economy.

  • Sarah Sundine

    Chief Operations Officer

    Sarah Sundine has extensive knowledge and experience in quality engineering, new product launches, and both project and people management. She has a proven track record of organizing and advancing initiatives ranging from highly technical to culture and employee-oriented. Sarah’s background in quality methodologies, statistical process control, quality engineering, and her understanding of customer requirements fit seamlessly with UMC’s vision and will propel UMC’s continued growth and technical advancement in the precision parts industry.

    Sarah holds a Bachelor of Science in Metallurgical Engineering from Michigan Tech, a Master of Science in Engineering Management from the University of Michigan Dearborn, and a Project Management Professional Certification from PMI. She has a storied history of active volunteerism in Women of Today, holding titles of President and State Program Manager, Association of Women in the Metal Industries, as a Board Member, and has championed multiple fundraising efforts for various causes.

  • John Bozich

    Director of Sales and Business Development

    John Bozich has over 30 years of experience in manufacturing and business development. He brings extensive technical knowledge as both an engineer and product manager to UMC, where he leads a sales team of six in responsive, respectful, and clear communications with customers. John was raised in a small Northern Minnesota town where “your word was all you had,” a value he sees exemplified at UMC and foundational to his approach in sales and business development.

    John holds a Bachelor of Science in Industrial Technology with a focus on Technical Illustration and Graphic Design from Bemidji State. He designed, developed, and patented the Multi-Stage clip used in 25,000+ spine surgeries as well as a zero excess footprint socket that won Semiconductor International’s Best Product Award. John is also a Certified Partner of the Predictive Index talent optimization platform. In his free time, John dedicates himself to mentoring youth at his local church.

  • Bryan Buch

    Director of Manufacturing

    Bryan Buch has over 25 years of experience in manufacturing, machining, and production management in medical device, aerospace and defense industries. Bryan leads UMC’s strategies for everything between engineering and the customer including manufacturing scheduling, supply chain, and production.

    In the first years of Bryan’s career he remembers thinking of UMC, “This is how you do manufacturing, engage with your workforce and create trust.” Now in leadership at UMC, Bryan’s driving force is to “be the leader that I would want to work for” by developing people who know their work is important, integrity paramount, and growth encouraged.

    Bryan earned his certification in Machining Trades from Anoka Technical College. He is currently completing his Bachelor of Arts in Business Management from the University of Wisconsin–Madison. Bryan is invested in youth development, mentoring, and engaging the next generation of manufacturing experts from early ages.

  • Jeramey Nagy

    Director of Engineering

    Jeramey has nearly 12 years of experience in manufacturing tight tolerance, complex parts made of exotic and hard-to-machine materials. Throughout his career, he has supported a wide range of manufacturing areas, including Swiss machining, 3-, 4-, and 5-axis milling, Mill-turn, turning, sinker and wire EDM, laser marking, inspection, assembly, and data interpretation and analysis. Jeramey has also provided support to customers in correlation analysis, measurement studies, process improvement/cost reduction activities, and “DFM” or “Design for Manufacturing” projects.

    Jeramey holds a bachelor’s degree in mechanical engineering from the University of North Dakota and possesses a wealth of knowledge concerning new machine platforms and their capabilities to support the manufacturing of complex components in the defense, aerospace, and medical industries. He is enthusiastic about the opportunity to utilize his knowledge and experience to guide UMC’s Engineering team in meeting the ever-evolving demands of its customers. Jeramey’s aptitude for problem-solving, willingness to delve into the details, and ability to collaborate seamlessly in the resolution of complications make him a natural fit with UMC’s close-knit, family-oriented culture and its commitment to innovation.

  • Holly Kiemen

    Director of Quality

    Holly Kiemen had over 15 years of experience in manufacturing, over 13 of which have been dedicated to quality assurance. She has an extensive background in quality engineering, new part introductions, customer relations, regulatory/internal audits, corrective actions, and people management. Holly has a proven track record of maintaining high-quality standards in various regulated industries, such as aerospace, medical, and industrial, equipping her with the necessary skills and expertise to navigate and integrate new quality requirements into UMC’s Quality System while maintaining the company’s high quality standards.

    She holds certifications in Lean 5S and Six Sigma and has managed numerous projects targeting defect elimination, process stability, and capacity. Her various roles have prepared her well to oversee the quality of UMC products and lead a team of quality professionals at UMC.  Holly’s expertise and experience make her a valuable addition to the UMC team, ensuring that the quality of UMC’s products is maintained at the highest level.

  • Scott Peterson

    Director of Automation and Facilities

    Scott has dedicated over 40 years to precision manufacturing and automaton of complex parts. His experience in various roles such as Project Manager, Design Engineer, Applications Engineer, and Senior Quality Engineer gives him the background to skillfully guide UMC’s automation strategy. Scott’s education in LEAN, 5S, Six Sigma, and Statistics help him ensure the facility, equipment, and automation can deliver a superior product at a competitive price. He enjoys challenging his team to drive best-in-class manufacturing through every avenue, from facility and process design to equipment selection.

  • Dick Salonek

    Director of Finance

    Dick merges his 25+ years of finance and accounting experience with a passion for continuous learning and technology. Dick’s oversight helps UMC stay on the cutting edge with strategic investments while maintaining control of key business metrics that drive financial stability and growth. Dick holds a Bachelor of Arts in Accounting from St. John’s University, a Certification of Management Accountant from the Institute of Management Accountants and Mini-Masters in LEAN and Strategic Planning from the University of St. Thomas.

For more than 50 years, UMC has delivered quality and service beyond what our customers have experienced in the past. Our passion for building better parts, processes, and partnerships drives us to bring innovation and creativity to every project and every relationship.

Don Tomann, CEO & Owner