Meet our leadership team
Michael SiemerPresidentMichael Siemer leads the OSIsoft management team and the company’s global growth. Before joining OSIsoft, he was vice president of engineering, exploration and product at Devon Energy Corporation—and a PI System customer. He holds a B.S. and M.S. in electrical engineering (from Syracuse University and Colorado State University, respectively), and an MBA from Oklahoma Christian University.
Bob GuilbaultExecutive vice president, operations Bob Guilbault oversees the company’s customer success, engineering, finance, accounting, risk management and business support functions. His previous roles include commercial banker, management consultant and CFO for C&H Sugar Company food and beverage industry. He received an MMA from the JL Kellogg School of Management at Northwestern University and BA in Economics from Bowdoin College.
Kimthu DoanSenior vice president, customer success Kimthu Doan leads post-sales activities to serve OSIsoft customers worldwide, including customer success management, technical support, professional services and customer service. She has over 25 years’ experience in the IT industry. In addition to a BS in computer science from UC Davis, she holds active certifications in project management (PMI), customer support (TSIA), and scrum (CSM).
Rónán De HoogeSenior vice president, engineering Rónán De Hooge guides OSIsoft through the technology challenges necessary to execute company strategy. He joined the company in 2001 as a software developer and has taken on many different roles through his 20-year tenure. Earlier, he worked as a process engineer in the mining and metals sector and received his B.Eng. in chemical engineering from University College, Dublin (Ireland).
Wolfgang KuchenSenior vice president, sales, marketing and business development As leader of sales, marketing and business development, Wolfgang Kuchen helps OSIsoft build strong, trusted relationships with current and prospective customers, partners and influencers. He brings a strong track record in the food, nutritional supplement and pharmaceutical industries. He received his B.S. business from the University of South Alabama and MBA from Arizona State University.
Mark BurnsVice president, finance and accounting
Len CeruzziVice president, business systems and solutions
Bry DillonVice president, business development
Maria GarzaroDeputy general counsel
Norton GreenDirector, executive engagements
Jesus HernandezVice president, international sales
Terese JuntzVice president, human resources
Rebecca LawsonVice president, marketing
Gregg Le BlancVice president, product
Chris NelsonVice president, software development
Jason ScullyGeneral counsel
Dr. J. Patrick KennedyFounder, OSIsoft / Chairman Emeritus, AVEVADr. Kennedy is an industry pioneer who conceived the vision of an operational data infrastructure. He guided OSIsoft from a startup in 1980 to a $5 billion global software company that makes the PI System, the proven system of record for operational data in essential sectors. After OSIsoft was acquired by AVEVA in 2021, he remains involved as a large independent shareholder and chairman emeritus of AVEVA. A registered professional engineer in control systems engineering, Dr. Kennedy holds a B.S. and a Ph.D. in chemical engineering from the University of Kansas, and a patent on a catalytic reformer control system.