Phones 0800 752 752

About Us

From a domestic freight service to a world-class integrated supply chain. Initially a virtual freighting business, 25 years of stable growth sees Mainstream operating a large fleet of trucks out of offices throughout New Zealand.

  • Across town
  • Across the country
  • Across the world

The Board

Greg Haliday
Greg Haliday
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
Paul Sills
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
Robert Foster
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.

Diane Haliday
Diane Haliday
Owner and IT Director

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.


We pride ourselves on service excellence, customer focus and going the extra mile.


Contact us to find out more

Toll free: 0800 752 752

Email us on: hello@mainstream.co.nz



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