Mark Trepanier
Practice Leader, M&A Transitional Services

Mark serves as Practice Leader for the M&A Transitional Practice of Optimatum and has over 30 years of experience in consulting, advisory, account management and service delivery in business services including HR, IT and Legal.  Mark’s particular focus has been supporting and executing transformations driven by outsourcing and shared services programs, as well as corporate transactions, such as mergers, acquisitions and divestitures.

His expertise was developed from on-the-ground experience in executing transitions, building businesses and ensuring that new service environments were implemented in a sustainable and scalable way, with a cost effective profile.  Mark has worked on initiatives with hundreds to hundreds of thousands of employees, across numerous industry segments and in every region in the world.

  • Experience : 30 Years

Skill expertise

Mark previously ran Exult’s and Accenture’s HR services units, gaining in an in depth understanding of the challenges of program conversions, including aligning divergent vendor programs, leveraging complex technology solutions into integrated customer service and processing environments, and managing the employee conversation during a period of change.  In addition, Mark advised on some of the largest HR transformation initiatives in the world.

Mark joined Optimatum leveraging this experience to deliver value to clients as they undertake merger, acquisition and divestiture related transitions.  He previously held executive roles, in addition to Exult and Accenture, at MCI, EquaTerra and Axiom and as a partner at KPMG.