Board of Directors


Guy & O’Neill has been guided by a Board of Directors that boasts extensive experience and expertise. Every board member is also an investor in the company, and the leadership they provide is unparalleled.

Mike Guy

Mike Guy is the founder and former CEO of Guy & O’Neill, Inc. He has also served as President of three pharmaceutical manufacturing companies: M. George Research, Park Laboratories and Wisconsin Pharmacal. He holds two patents and is a long-serving member of the University of Wisconsin School of Pharmacy’s prestigious Board of Visitors.

Jeff Harris

  • Audit Committee
  • Chairman Compensation Committee
  • Strategic Planning Committee

Jeff Harris is an investor in and board member of Somna Therapeutics and Okanjo Partners, Inc., early stage technology companies located in Wisconsin, and a director of AMN Healthcare Services, Inc., a healthcare staffing company based in San Diego (NYSE: AHS). Mr. Harris is also a founder and the Chairman of the Board of BrightStar Wisconsin Foundation, a Wisconsin non-profit economic development company. Mr. Harris formerly served as Vice President-General Counsel and Secretary of Sybron International, a diversified manufacturer of laboratory and life science products for worldwide clinical, research and industrial markets.

Paul Mirabella

  • Compensation Committee

Paul Mirabella is President and CEO of Paul J. Mirabella Investments and Consulting, LLC. He held a wide variety of engineering and business management positions in GE Healthcare from 1976 to 2006. Paul’s extensive background in healthcare includes leading the Global Ultrasound, CT and MR Businesses. He also led the Global Services, Americas Sales, Service and Marketing, as well as the Global Diagnostic Imaging Business. Mr. Mirabella also led Naviscan, Inc., as Chairman, CEO and a significant investor from 2007 to 2013. In addition to his consulting work in Healthcare, he is a director in Control Rad Systems and a limited partner in Seraph Group Venture Capital and the VIP Fund, an industrial real estate investment partnership, and remains involved in a variety of charitable foundation boards

Ralph Patitucci

CEO Guy & O’Neill, Inc.

  • Audit Committee
  • Chairman Strategic Planning Committee
  • Compensation Committee

Ralph J. Patitucci has been involved with Guy & O’Neill since 2002. He has more than 40 years of hands-on business experience, starting his career with the General Electric Company. During his time with GE, he had progressively more responsible positions, starting in Manufacturing, moving to Finance, and ultimately, while he and his family lived in Korea, forming and running the first joint-venture company between the General Electric Company and the Samsung Group of South Korea. Since leaving GE in 1990, he has functioned as an entrepreneur, acquiring and/or starting a succession of small companies. In 1996 he started his own consulting and investment company, Index Services, Inc., and it was in this capacity that he first became involved with Guy & O’Neill. Over time he assumed increasingly larger equity and managerial positions within G&O and currently leads the investor group that has acquired a controlling interest in the company. Since 2011, he has served as the Company’s Chairman and CEO.

Carl Strohmaier

  • Strategic Planning Committee

Carl Strohmaier is President of Milcut, Inc., a Milwaukee-based manufacturer of foam, plastic, rubber, and fiber components for Fortune 1000-size customers in the electronics, pharmaceutical, power generation, water filtration, military, agricultural and heavy-equipment markets. Following an initial post-college position as a Commercial Banker with the First National Bank of Chicago, Mr. Strohmaier has spent more than 30 years in manufacturing and has amassed experience in production planning, pricing, staffing, contract and lease negotiations, real estate development, as well as the creation and implementation of ISO Quality Programs and Lean Manufacturing Techniques.

Don Wilson

  • Chairman Audit Committee
  • Strategic Planning Committee

Bill Ahn 

  • Founding partner of Morgan Lewis Githens and Ahn
  • Independent investor; retired director and chairman of various corporations