MAINSTREAM - Key Persons


Diane Haliday - CIO, Founder

Job Titles:
  • Co - Founder
  • IT Director
  • Member of the Board
  • Owner
Diane is co-founder and owner of Mainstream, together with her husband Greg. She had an accomplished career in Information Technology (IT) before co-founding Mainstream in 1992. Diane manages the Mainstream IT Department and leads the Board on the company's infrastructure and investment strategy in Information Technology.

Greg Haliday

Job Titles:
  • Member of the Board
  • Owner and Manager Director
With extensive experience and proven performance in a number of roles with nationwide freight companies, Greg co-started Mainstream in 1992. Greg's approach is innovative and solution-driven. His unrelenting can-do style and strong work ethic meant the business grew rapidly, successfully moving freight that was typically perishable, urgent, or just simply difficult. His leadership style is very much hands-on and forthright. Day-to-day activities still include managing clients, many of whom had faith in Greg and Diane when they began using Mainstream in the early 1990s.

Paul Sills

Job Titles:
  • Member of the Board
  • Director LLB ( Hons )
Paul is a barrister, business adviser and independent director. He became a member of the Mainstream Board in an advisory capacity in 2009. Paul has a proven track record for delivering results. His career includes leadership of eight companies serving domestic and global markets; including Europe, USA, Middle East and South East Asia. His experience as a skilled strategist, combined with his senior operational and financial experience contributes considerably to the direction and growth of Mainstream.

Robert Foster

Job Titles:
  • Member of the Board
  • Director B.Com
Robert has been a Senior Partner since 1992 with international accounting firm, BDO New Zealand. His strong commercial experience in facilitating acquisitions, financial planning and delivering business growth plays a significant role within the Board. Robert is passionate about businesses achieving success through high quality and skilled people in key positions. He is a member of the New Zealand Institute of Chartered Accountants.