Avanti Finance wouldn’t be where it is today without its people. Our team is composed of a wide variety of people from different walks of life, including our executive, each member of which brings decades of experience in the finance industry – and beyond.
Meet our people
Avanti Finance wouldn’t be where it is today without its people

Mark Mountcastle
Mark has overall responsibility for the strategic direction of the Avanti Group. Mark joined us in 2015 with over 20 years’ experience across the finance industry.

Nish Sethi
Nish leads our finance team, bringing decades of global experience from New Zealand, Latin America and the United Kingdom. Nish has been with us since 2021.

James Mitchell
James has overall responsibility for day-to-day operations of the Avanti Group. James joined us in 2020 with extensive experience across the finance industry.

Paul Jamieson
Paul leads the Treasury function for Avanti, having joined in July 2019 following 20 years in banking and financial markets in New Zealand, Australia and the UK.

Ian Boyce
Ian joined Avanti in November 2022 and leads the Property business. He brings almost 30 years of senior leadership experience in financial services, banking and insurance.

Olivia Meo-Groser
Olivia joined Avanti in April 2023 with over 15 years of financial services commercial lawyer experience. She is responsible for ensuring compliance with regulations and legislation at Avanti.

Mike Down
Mike joins Avanti with 25 years’ sales and strategic leadership experience in the financial services industry in both New Zealand and the UK. He’s held roles in fleet management, asset finance and wealth management.