Summerset has an experienced Board with a diverse range of skills and experience.  The Board is responsible for supervising and directing the management of the company, guiding the strategic direction of Summerset and ensuring strong corporate governance.


Mark VerbiestDr Marie BismarkVenasio-Lorenzo CrawleyJames OgdenGráinne TrouteAnne Urlwin  - Dr Andrew Wong

Mark Verbiest

Chair, Independent | LLB CFInstD

Mark is Chair of the Board.

Mark is a lawyer by training, having spent many years in private practice as partner of a large national law firm. He subsequently joined the senior executive team at Telecom New Zealand as Group General Counsel, also having executive responsibility for other corporate groups and two business units.

He is currently the Chair of listed companies Meridian Energy and Freightways, as well as a director of ANZ Bank.

Mark has previously been Chair of Spark, Transpower NZ, Willis Bond Capital and a director of a number of other companies and entities, including the inaugural board of the Financial Markets Authority and the advisory board to NZ Treasury.

Mark has been Chair of Summerset since July 2021.

Dr Marie Bismark

Independent | MBChB, LLB, MBHL, MPH, MD, MPsych, FAICD, FAFPHM

Marie is Chair of Summerset’s Clinical Governance Committee. She holds degrees in law, medicine, bioethics and public health, and has completed a Harkness Fellowship in Healthcare Policy at Harvard University. 

Marie works as a psychiatry registrar with Melbourne Health, and as an Associate Professor at Melbourne University. 

Her research focuses on patients' rights, quality of care, and medical regulation. Marie is an experienced company director, serving on the boards of GMHBA Health Insurance, The Royal Women's Hospital in Melbourne and on the Veterans' Health Advisory Panel. 

Marie has been a director of Summerset since 2013.

Venasio-Lorenzo Crawley

Independent | MBA, BA

Venasio-Lorenzo is the Chief Customer Officer at Contact Energy and an Advisory Board Member at the Auckland University of Technology.  He has also recently completed a term as a Future Board Director for The Warehouse Group.

Venasio-Lorenzo’s previous directorships and trustee positions include the Electricity Retailers Association of NZ Electricity, Gas Complaints Commission (now Utilities Disputes), Loyalty New Zealand and Workbase.

He has held senior executive positions at ASB Group and at IAG in both New Zealand and the United Kingdom and has worked across a wide variety of areas including strategy, finance, IT, pricing, data analytics, digital technology, culture and brand.

Venasio-Lorenzo has been a director of Summerset since 2020.

James Ogden

Independent | BCA (Hons 1st), FCA, CFinstD, INFINZ (Cert)

James is the Chair of Summerset’s Audit Committee. He is a director of Vista Group International and Foundation Life (NZ). James is also the Chair of the Investment Committee of Pencarrow Private Equity.

James has had a career as an investment banker, including six years as Country Manager for Macquarie Bank and five years as a director of Credit Suisse First Boston. He also worked in the New Zealand dairy industry for eight years in chief executive and finance roles. 

He holds a Bachelor of Commerce and Administration with First Class Honours and is a Chartered Fellow of the Institute of Directors and a Fellow of Chartered Accountants Australia and New Zealand (CAANZ). 

James has been a director of Summerset since 2011 when he was appointed to Summerset prior to its listing on the NZX. 

Gráinne Troute

Independent | GradDipBusStuds, CMinstD

Gráinne is Chair of Summerset’s People and Culture Committee. She is a Chartered Member of the Institute of Directors and is also Chair of Tourism Industry Aotearoa and a director of Tourism Holdings and Investore Property. 

Gráinne is a professional director with many years’ experience in senior executive roles. She was General Manager, Corporate Services at SKYCITY Entertainment Group and Managing Director of McDonald’s Restaurants (NZ). She also held senior management roles with Coopers and Lybrand (now PwC) and HR Consultancy Right Management.

Gráinne has vast expertise in operating customer-focused businesses in highly competitive sectors. She has also spent many years as a trustee and Chair in the not-for-profit sector, including having been the Chair of Ronald McDonald House Charities New Zealand for five years. 

Gráinne has been a director of Summerset since 2016.

Anne Urlwin

Independent | BCom, FCA, CFInstD, MAICD, ACIS, FNZIM

Anne is the Chair of Summerset’s Development and Construction Committee. She is a professional director with experience in a diverse range of sectors including construction, health, infrastructure, telecommunications, regulation and financial services. 

She is the Deputy Chair of Southern Response Earthquake Services, and a director of Precinct Properties New Zealand, Tilt Renewables and Queenstown Airport Corporation. Her other directorships include City Rail Link and Cigna Life New Zealand. 

Anne is a former director of Chorus and a former Chair of national commercial construction group Naylor Love Enterprises and of the New Zealand Blood Service.

Anne is a Chartered Accountant with experience in senior finance management roles in addition to her governance roles.  

Anne has been a director of Summerset since 2014. 

Dr Andrew Wong

Independent | BHB, MBChB, MPH

Andrew is the Managing Director of Mercy Ascot Hospitals and HealthCare Holdings, having held these positions since 2009. 

He holds a medical degree and has previously practised as a Public Health Medicine specialist.

Andrew is also a director of a number of medical organisations. These cover a diverse range of areas such as surgical hospitals, day surgeries, diagnostic radiology and cancer care.

Andrew has been a director of Summerset since 2017.