Leadership Team

The Northfield Automation Systems team brings to bear on behalf of its clients and customers several decades of combined experience in the roll-to-roll engineering and process equipment manufacturing fields.

Mark Wegner
President and Co-Founder

Mark Wegner, President and Co-Founder, brings more than 18 years of roll-to-roll engineering and process equipment manufacturing to Northfield Automation Systems. Prior to founding Northfield Automation Systems, Mark served as Process Engineering Manager as well as R&D Engineer for Sheldahl. His extensive background includes broad expertise in roll-to-roll flexible printed circuits, films, foils of all types, sensitive product configurations and highly focused, custom application design. He holds a BS in both physics and mathematics from the University of Minnesota.

Click here to view our Welcome video featuring Mark.



Dr. Gary Larsen
Principal Engineer and Co-Founder

  • Ph.D. in mechanical engineering; 15 years industry experience
  • Principal engineer; spearheads concept generation and quoting, mechanical design, electrical design, programming, test and qualification
  • In-depth expertise and experience in dynamic systems and control
  • Member of the American Society of Mechanical Engineers (ASME) and The Institute of Electrical and Electronics Engineers (IEEE)


Doug Hall
Principal Engineer and Co-Founder

  • B.S. in industrial technology from the University of Wisconsin – Stout
  • 22 years industry experience
  • Extensive experience in designing single board computers for embedded industrial control applications
  • Heavily involved in automation projects throughout entire project cycle: concept, quote, design, build, program, document, test, install and service



Darin Stotz (e-mail)
Director of Sales and Marketing

  • BS degrees in marketing and management; MS degree in manufacturing engineering and product development from University of St. Thomas
  • Responsible for growing overseas electronic materials business at Sheldahl, also held various positions such as Production Supervisor, Quality and Product Engineer, and Materials Applications Engineer. Executive sales management in both domestic and international sales representatives (APAC/Europe); conducted international training programs
  • Broad materials and process knowledge holds a patent allowing for thermal molding of flexible electronic tapes and circuitry in automotive applications
  • More than 20 years of business and engineering consulting with significant focus on process and materials integration for startup of new business enterprises.

Click here to view a video called  ”One More Thing…” with Darin.