Senior Leadership Team

Adrienne Meikle

Chief Executive

Adrienne Meikle joined the Commission in May 2018, taking on the role of Chief Executive. Before joining the Commission Adrienne held the positions of Deputy Chief Executive, Corporate, Governance and Information group, Acting Deputy Chief Executive, Market Services and General Manger, Resolution Services at the Ministry of Business, Innovation and Employment. Adrienne has extensive experience across the public sector and prior to joining MBIE in 2012, held the roles of Acting Deputy Secretary, Tourism, Events and Consumer Affairs, Director of Legal in the former Ministry of Economic Development, Chief Legal Advisor in the former New Zealand Food Safety Authority, and Parliamentary Counsel and Private Secretary in the Attorney General’s office.
Geoff Williamson 220wide

Geoff Williamson

General Manager Organisation Performance

Geoff Williamson joined the Commission in July 2011 and manages the Organisation Performance branch. Geoff was previously Director Corporate Services at the Tertiary Education Commission and his previous work experience includes Chief Financial Officer at the National Library of New Zealand and a range of roles at Deloitte. Geoff has a BCA from Victoria University of Wellington and an Executive Master of Public Administration through the Australia and New Zealand School of Government, and is a Chartered Accountant.
Antonia Horrocks 220wide

Antonia Horrocks

General Manager Competition and Consumer

Antonia Horrocks manages the Commission’s Competition and Consumer branch. She joined the Commission in August 2016 and was previously a Project Director at the UK Competition & Markets Authority, managing competition and consumer cases. She held a similar role at the UK Competition Commission. Prior to joining the regulator, she worked as an antitrust lawyer in London for nearly a decade, most recently as Counsel in the Antitrust Group of Shearman & Sterling (LLP) in London. She started her career in New Zealand and has a law degree, a BA (Hons) in English and a Postgraduate Diploma in EU Competition Law.
Nick Russ 220wide

Nick Russ

General Manager Regulation

Nick Russ manages the Commission’s regulatory functions across a number of sectors including electricity lines, gas pipelines, major airports, telecommunications and dairy. He was previously Head of Part 4 and Dairy. Nick joined the Commission in November 2010 as a Chief Adviser in the Regulation branch working across a range of regulatory issues. Before joining the Commission he spent a number of years working for energy regulators in the UK and Australia. Nick has a degree in electrical engineering and is a chartered engineer.