William M. Tatham is Founder and Executive Chair of NexJ Health Inc., a provider of patient-facing population health management solutions delivering patient engagement for chronic disease management. Mr. Tatham is also the Chief Executive Officer of NexJ Systems Inc., providing executive oversight for the company and vision for the company’s enterprise customer management solutions.

Mr. Tatham started his career as a University of Waterloo cooperative education student at IBM and as a management consultant at Arthur Andersen & Co. As Founder, Chair and CEO, Mr. Tatham led Janna Systems Inc., a world leader in enterprise customer relationship management software for financial services, which sold in 2000 in a record value transaction for a public Canadian software company.  Mr. Tatham then founded and was Managing Partner of XJ Partners, a venture capital and advisory services firm that incubated NexJ Systems, where he acts as CEO and which he took public in 2011. Mr. Tatham is also Executive Chair of NexJ Health Inc., which was spun out from NexJ Systems in 2016.

Mr. Tatham is Chair and Co-founder of the not-for-profit Canadian Association for Person-Centred Health. He is a Former Member of the Board of Directors and Audit Committee of Elizabeth Arden (RDEN: NASQ), a global prestige beauty products company. He is Former Chair of the Quality Committee and Vice-Chair of the Board of Governors of the North York General Hospital.

Mr. Tatham holds a BASc in Systems Design Engineering with options in Socio-economic Systems and Management Science. He is a Doctor of Engineering (honoris causa), and a member of the Dean’s Advisory Council, Engineering, for the University of Waterloo. Mr. Tatham is also Adjunct Professor, Faculty of Health at York University.