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Lars Bessems
Expertise Manager Turnarounds and Projects

Perfact Group

Mr. Bessems (born in 1973) has been working in Turnarounds, Green and Brownfield Projects for all of his professional life.


He finished his Master of Science in Biomechanical Engineering at the University of Eindhoven and the University of Maastricht in 1996. He obtained a Master in Business Administration at the University of Hasselt in 1999.


In 1996 he started at an Engineering Company in the function of Maintenance Engineer. He was directly involved in the different Turnaround processes. And saw the need for better IT-systems in project management information.


During 1998 he started, with a friend, the firm MainTasc, which created the software system MainTasc for covering the complete Turnaround project management. MainTasc also had project management services for scoping, scheduling, planning, cost controlling, construction management and Turnaround project management.

In 2008 the company split into two parts, software and project management services. The Software side, led by his colleague Ronald Janssen stayed under the name of MainTasc, until 2012 when it began a joint venture with Primavera Nederland; the firm is now called PrimaTasc. The Project Management Software applications developed: MainTasc and MainTasc Enterprise are used globally.


The services side of the business, led by Mr. Bessems, joined with the Perfact Group and now operates under the name of Perfact Tasc. This business is responsible for all project management services for Turnarounds and Projects. Perfact Tasc delivers professional and specialized personnel but can also manage part of the project management team or even deliver the complete project management team.


As of 2012, the company has grown so much that Mr. Bessems prefers to find professional satisfaction in leading and consulting projects, coaching and training colleagues, setting-up Best Perfact Practices in a Perfact-PMO and developing new business and methods. He also creates and gives trainings and workshops for the Perfact-Academy.


He is certified PMI®-PMP (Project Management Professional), PMI®-SP (Schedule Professional) and PMI®-ACP (Agile Certified Practitioner), Scrum Master PSM®-1, Lean Six Sigma Black Belt and PRINCE2® Foundation & Practitioner