Preston Group

Experienced and innovative leaders within their industries, our Management Team lead by example creating a unified front for future growth.



Chief Executive Officer (CEO)​

Markus Preston is a passionate, proud and big picture thinker who leads with enthusiasm and courage. He identifies opportunities that will enhance the Preston Group and actively pursues them with success.  With an ability to act quickly in the short term whilst also planning for the long term, Markus is a leader in the Specialised Industrial Services sector both domestically and internationally.


Chief Operating Officer (COO)​

Calm, measured and focused, David Serg brings to the Preston Group extensive experience in the constitution of new businesses, brands and developing high performing teams.

David has a unique ability to blend both creative thinking and new ideas with a systematicoperational and rational approach to eliminate errors. 


Chief Financial Officer (CFO)

With great professionalism and financial knowledge, Colin Petrie brings an abundance of experience to the Preston Management Group. His experience from multiple industry sectors offers an innovative economic approach, with the proven ability to deliver strategic initiatives and improved business outcomes, with a long-term strategy of driving revenue growth.


Chief People Officer (CPO)

Jenny has over 25 years experience in implementation and maintenance of HR, WHS, QA and IT systems. As a team member for over 14 years, Jenny has been involved in all aspects of the business including the growth phases across business units and countries. Jenny works with all aspects of the Preston Group related to the “people” including development of strategy, communications, implementation, policy, processes and social elements.