The leaders behind 20 years of growth and success for Planisware.


CEO and Founder of Planisware

Pierre Demonsant is the CEO and Founder of Planisware. Early on in his career at Thales IS, within the information systems subsidiary called Syseca, Pierre recognized the frustration that matrix organizations undergo when attempting to organize complex work spanning multiple work streams.

In 1992, he began to develop project planning software that would be able to support intricate networks of dependencies and constraints across business units and teams. This software would later be adopted by Arianespace and EDF. 

Following his early success, Pierre incorporated a spin-off of Thales called Planisware in 1996, signing multi-national pharmaceutical giant, Sanofi as Planisware’s first client. Today, Planisware serves over 290 organizations across 4 continents. Pierre continues to oversee the company’s strategy and international expansion and sits on the board of several software companies.

Pierre graduated from Ecole Polytechnique in Paris, France, specializing in artificial intelligence and operational research. Pierre has a wife and two kids, and is an avid kite surfer.



CEO, North America

With several years of experience as a Planisware consultant in Paris under his belt, Antoine Villata moved to the US in 2001 to establish Planisware Services in North America, starting operations in both California and New Jersey.

Antoine has more than 16 years of hands-on experience in the field of project and portfolio management (PPM). His experience includes designing and implementing PPM solutions at several major NPD companies, directing global multi-site and multi-region projects, and partnering with prestigious consulting firms to implement processes and methodologies that increase returns on R&D investments. He uses his cumulative experience on a daily basis in his role of overseeing operations and supporting Planisware's expansion in North America.

Antoine received an MS in Innovation Management from Compiegne Technology University (UTC) in France as well as an MBA in Marketing and Finance from the Wharton School.

On weekends, Antoine enjoys spending time with his wife and two small children, and kitesurfing around the Bay Area!


Managing Director, UK, Europe

Kay Ojo is the Managing Director for Planisware’s U.K. operations, where he is responsible for all sales and customer-facing operations for U.K. customers.

An experienced and passionate “customer advocate” with a proven track record of delivering value, Kay has more than 16 years of experience in the technology sector, and worked in the PPM market as a user and a buyer, and managed teams selling and deploying PPM tools. He’s developed and managed operational and strategic objectives for companies of all sizes, and has extensive international business experience, including the management of global program delivery operations. His experience also includes full-scale day-to-day business operations, such as management of customer-facing delivery and product development teams, delivery of strategic pre-sales, and sales/account management engagements.

Kay has an Electronic and Computer Systems degree from University of Salford as well as an MBA from Lancaster University.


Senior Vice President, North America

Loic Sautour is Senior Vice President, North America, for Planisware, spearheading the company's successful, continued North American expansion, as well as a network of Planisware partners.

Prior to this, Loic served multiple Product Management roles to bring the company’s new product development and life science solutions to market. For over 16 years, he has been instrumental in bringing the Planisware solution to several life sciences, automotive and high-tech organizations, both in North America and abroad.

Loic has a bachelor's degree in Innovation Management and a master's of science in Innovation and Technology Management with a focus on project and risk management from the University of Technology of Compiegne, France.



Director of Marketing, North America

Theresa Hwang is Planisware’s Director of Marketing and is responsible for managing the execution of the organization’s marketing strategy across North America.

Since taking on her role in 2011, Theresa has expanded the organization’s marketing programs. Under her watch, Planisware has organized more than 50 practitioner-centric PPM events, extended outbound marketing efforts, developed relationships with industry thought leaders and leveraged technology platforms for more efficient program execution. She’s also been responsible for expanding the marketing and lead generation teams in the United States.

Theresa began her career with Planisware in 2003 as a consultant, during which time she was an instrumental team member on several key implementations, including Johnson & Johnson, Bristol Myers-Squibb, Genentech, Chiron. As a principal consultant, she served as the project manager for implementations with GlaxoSmithKline, Sprint, Medtronic and Roche. Her background as a consultant provides her with an up-close perspective into the challenges that PPM practitioners face and enables her to develop marketing programs that best respond to these needs.

Theresa holds a bachelor’s of science in electrical engineering from Stanford University. In her spare time, Theresa enjoys eating her way through San Francisco and traveling the world with her husband, and she is impatiently awaiting George R.R. Martin’s next book.



Senior Director of Consulting Services, North America - West Coast Operations

Greg Chrzastek leads and directs Planisware's implementation and consulting services in both the Denver and San Francisco offices.  In addition to this role, he is as an executive implementation consultant and solution architect.

With nearly a decade of experience, Greg has helped several cross-industry organizations implement Planisware’s Enterprise PPM solution.  Equipped with a deep knowledge of industry best practices, Greg works closely with organizations and project teams to translate and optimize their project, portfolio, and resource management business processes within Planisware.  Above all, he is particularly passionate in ensuring that organizations realize business value through their implementation and do not lose sight of their long-term strategic vision.

Greg holds an MS in Business & Information Systems, specializing in Business Decision Making and Systems Analysis & Design, and a BS in Computer Science & Business from New Jersey Institute of Technology (NJIT).  He is also certified through the Project Management Institute (PMI) as a Project Management Professional (PMP) and Agile Certified Practitioner (PMI-ACP).

When not working, Greg enjoys going on dates and spending time with his wife, exercising, being outdoors, traveling, and exploring new places.



Senior Director of Consulting Services, North America - East Coast Operations

Jean-Pascal (JP), leads the implementation & consulting services for the East Coast and Canada from our Philadelphia office. He also serves as a solution architect and executive implementation consultant.

For over 17 years, JP has been involved in all aspects of enterprise software delivery from early strategic business goals definition to production care and maturation. His diverse cross-industry experience has given him creative insights into how to guide R&D organizations to overcome their specific project, portfolio and resource management challenges.

Jean-Pascal holds a Master’s degree from the ESCEM School of Business and Management in France.

Outside of work you can always find JP in one of 3 locations: in the kitchen, spoiling friends and family; in the Dojo, training others to literally kick butts; or on the golf course, looking for birdies.