Source: MinterEllisonRuddWatts
MinterEllisonRuddWatts has appointed Mike Grenfell as its new Chief Information Officer, effective August 2026, further strengthening the firm’s capability in technology, digital transformation and AI.
Mike Grenfell is a highly experienced technology leader with more than 15 years in C-suite roles, primarily within the financial services sector. He brings a strong track record of leading large-scale transformation programmes and embedding digital and AI capabilities to support business strategy and performance.
Chief Executive Aaron Hockly said the appointment reflects the firm’s focus on future-ready technology and client service.
“I’m delighted to welcome Mike to our executive team, and into a critical role for our firm and our clients,” says Aaron Hockly.
“As well as being an accomplished technology leader, Mike brings real depth in AI strategy and its practical application – with expertise helping organisations navigate both the opportunities and the risks.
“His experience will strengthen how we approach our firm’s digital and AI strategy and ensure we continue to invest in the platforms and capabilities that support our people and deliver excellent value to our clients.”
About Mike Grenfell
As Chief Operating Officer at Heartland Bank, Mike led one of the largest technology transformations in the organisation’s history, encompassing core banking migration, implementation of new digital solutions and a transition to cloud-based platforms. He oversaw technology and operations through a period of significant change, managing a team of more than 200 people.
As Chief Information Officer at the New Zealand Automobile Association (AA), Mike defined and delivered the organisation’s digital transformation strategy, supporting more than 1.7 million members across more than 100 locations. His work introduced new technologies and Agile ways of working, enabling a more connected and seamless customer experience.
Earlier in his career, Mike spent nine years with Cigna, holding a range of senior roles including Chief Operating Officer, Chief Marketing Officer and Chief Information Officer, where he led the launch of new products and digital sales capabilities.
At MinterEllisonRuddWatts, Mike will be responsible for leading the firm’s IT strategy, accelerating its digital and AI initiatives, and ensuring technology investments align with the firm’s broader business and client objectives.
MinterEllisonRuddWatts is a top tier New Zealand law firm known for providing clients with technically excellent legal solutions and innovative advice. We are trusted advisors and work alongside our clients to ensure success. We are proud to be a New Zealand law firm offering a global outlook. Our offices in Auckland and Wellington can access an international network through our firm’s strategic alliance with MinterEllison, a leading firm in the Asia-Pacific. The firm supports numerous charitable endeavours and organisations through its pro bono and fundraising initiatives.