Leadership

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Dr. J. Patrick KennedyFounder and CEO

Under Dr. Kennedy's visionary leadership, the company has grown from a small startup in 1980 to a highly profitable global software corporation. In the early days, Dr. Kennedy's role included everything from sales to consulting. As the company matured, the role evolved into one of finding the right people to manage and direct the ever-growing company.

Prior to founding the company, Dr. Kennedy worked as a research engineer for Shell Development Company and as an applications consultant for Taylor Instrument Company.

Dr. Kennedy holds a B.S. and a Ph.D. in Chemical Engineering from the University of Kansas. A registered professional engineer in control systems engineering, he holds a patent on a catalytic reformer control system. He co-authored a chapter of the book "Planning, Scheduling and Control Integration in the Process Industries," C. Edward Bodington, ed. (McGraw-Hill Co., 1995), and is the author of numerous papers. Dr. Kennedy has many awards including the prestigious Silicon Valley Engineering Council Hall of Fame.

Michael SiemerPresident

Michael is responsible for overseeing the management team of OSIsoft, including the newly founded Executive Committee, made up of our Senior Executives. His strategic focus is to support the broader adoption and global growth of OSIsoft, building upon an installed base in more than 110 countries. His strong analytical and organizations skills enable him to effectively develop and lead complex teams.

Prior to OSIsoft, he worked for Devon Energy Corporation for seven years, serving as the Vice President of Engineering, Exploration and Production, Data and Analytics. His responsibilities included field automation, data management, advanced analytics and strategic innovation.

Michael has a Bachelor of Science degree in Electrical Engineering from Syracuse University (NY), a Master of Science degree in Electrical Engineering from Colorado State University and a Master of Business Administration from Oklahoma Christian University.

Bob GuilbaultExecutive Vice President, Operations

Bob oversees the functions of Customer Success, Engineering, Finance, Accounting, risk management, business support, financial planning and analysis, investor relations, internal audit, tax and facilities management for OSIsoft LLC and over 20 non-US entities.  

Bob has over 33 years of business experience in finance, consulting and operational roles.  As an executive leader and front line manager, Bob has developed and implemented strategies for risk management, process improvement, ERP selection and implementations, and acquisition and divestment transactions. Bob joined OSIsoft in 2007 and has worked closely with the senior leadership as an executive team member from the start. Prior to joining OSIsoft, Bob was CFO with C&H Sugar Company, a leading brand name in the food and beverage industry. Bob began his business career as a commercial banker and spent time in management consulting to the food and beverage industry. 

Bob holds a MMA from the JL Kellogg School of Management at Northwestern University and B.A. in Economics from Bowdoin College.  

Rónán De HoogeSenior Vice President, Engineering

Rónán guides the Engineering Department through the technology challenges necessary to execute OSIsoft's strategy. He focuses on the non-functional aspects necessary to make technology successful and creating a holistic approach that combines both business and technical concerns. He also advocates for and supports a positive development culture by embodying the principals of agility and championing the needs of the Software Development community.

Rónán joined OSIsoft in 2001 as a Software Developer and over his tenure has taken on many different roles, all the way from individual contributor to Director of Engineering. Prior to joining OSIsoft, Rónán worked as a process engineering in the Metals & Mining sector.

Rónán holds a B.Eng. in Chemical Engineering from University College Dublin, Ireland.

Richard BeesonCTO

Richard currently serves as OSIsoft's Chief Technology Officer focusing on long term strategic planning, business and technology alignment, strategic partnerships, alliances and research and innovation programs. Looking at today's challenges, Richard is exploring the benefits of employing operations information technology for societies, communities and industry to better understand and manage their relationship with resources, industries and commerce with the goal of helping these greater systems to thrive.  

Richard began his career at OSIsoft in 1990 and has held the role of Chief Software Architect and Director of Engineering.

Bry DillonVice President, ​Business Development​​

Bry manages the strategy and delivery for our cloud services and go-to-market approach with our channel partners and community.

Bry Dillon has been in the enterprise software industry for 20 years, spanning roles in sales and business development from venture funded startups to Fortune 500 organizations. He spent the beginning of his career in software companies focused on supply chain and unstructured data. For the past 8 years Bry has worked for OSIsoft, the majority of which has been in the field sales organization, where he led OSIsoft's Western Region. In his current role, Bry is responsible for overseeing the Cloud, Channels and Community team. Currently, he is focused on driving go to market strategies for emerging products and sales channels that extend the PI Infrastructure to leverage Cloud technologies. He is also responsible for identifying and driving strategic complementary solutions that increase customer's value from their operational data. Bry is a Bay Area native who lives in San Leandro with his wife and daughter.

Bry holds a B.A. in Economics from California State University, Hayward.

Maria GarzaroDeputy General Counsel

Maria participates in the management of legal operations for OSIsoft, and manages the North & South American legal team.

Maria joined the OSIsoft legal team in 2011. Before joining OSIsoft, Maria served as legal counsel at boutique IP firms and briefly practiced administrative law.

Maria holds a BA in Political Science and Spanish from the University of California, Berkeley and later received a JD from Santa Clara University School of Law.

Terese JuntzVice President, Human Resources

Terese leads OSIsoft's human resources services and internal communications, and champions the company's diversity, equity, and inclusion efforts. A trusted HR and business advisor, Terese provides strategic consultation to the company's executive committee. She has a passion for effective change management, and vast experience optimizing human capital resources and modernizing HR systems and infrastructures. Terese leads change using digital transformation and applied social neuroscience strategies. She delights in creating a workplace environment where employees and teams can flourish.

Terese brings 25 years of executive human resources and board leadership to OSIsoft. Before joining OSIsoft, she spent 15 years at two of the largest US owners and operators of senior living communities. In those organizations, she served as Chief Culture and Administration Officer and Senior Vice President of Human Resources. Her responsibilities included shaping the companies' missions, cultures and business goals. Prior to her senior living roles, Terese was SVP of Human Resources for SONICblue, Director of Human Resources at C-Cube Microsystems, and the Director of Human Resources and Corporate Staffing at VLSI Technology.

Terese has an MBA from Pepperdine University and a Bachelor of Arts degree from Oral Roberts University. She holds three professional certifications in compensation, human resources management, and training and development. She is an active member of the Society for Human Resource Management (SHRM) and WorldatWork, and follows the work of the NeuroLeadership Institute. She has more than 20 years of experience serving boards of directors as a member and executive liaison to compensation committees. Currently, Terese is a board member of Teen Esteem, a local nonprofit organization.

Rebecca LawsonVice President, Marketing

Rebecca leads the OSIsoft marketing team, responsible for the marketing strategy and execution across industrial sectors and worldwide regions.

Her background in enterprise, internet, and operational technologies spans more than 25 years in product marketing and management, strategy, marketing communication and business development. Rebecca's technology expertise includes applications and infrastructure, operations and cyber security, as well as data management and IoT. Fascinated with the role of data in personal, cultural and economic evolution, Rebecca joined OSIsoft to help accelerate the company's move towards making real-time, high-fidelity operational data available to a wider range of markets and consumers.

Gregg Le BlancVice President, Product

Gregg and his group are curators of the strategic product vision and roadmap for OSIsoft. His team works with customers, users, partners, and internal resources to gather requirements, feedback. These scenarios and use cases shape and align OSIsoft's product futures with technology and market forces. The OSIsoft Product group helps capture and represent the voice of the user both inside and outside the company.

Gregg joined OSIsoft in 1998 and has held many positions throughout his career at OSIsoft. 

Gregg graduated from University of California, Santa Barbara in Chemical Engineering for both his Bachelor's and Master's of Science degrees. He is also a professional photographer and works with a number of non-profit theatre companies around California.

Jason ScullyGeneral Counsel

Jason oversees all corporate, licensing, intellectual property and compliance initiatives. He played a crucial role in globalizing OSIsoft, establishing scalable business processes, and building the legal department to support the company's continued growth.

Jason first joined OSIsoft in 2002 as the company's first in-house attorney. Before joining OSIsoft, Jason served as OSIsoft's outside counsel at Perkins Coie and Fenwick and West. He was also the co-founder of a Partner Management SaaS start-up which was acquired in 2000.

Jason holds a B.A. in Psychology from the University of California, Berkeley where he graduated with honors and Phi Beta Kappa. He later received his J.D. from the University of California, Hastings College of the Law where he graduated Cum Laude, Order of the Coif and a member of the Thurston (scholastic honorary) Society.