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Step 1

Our governance team is a mix of passionate, longstanding staff members and independent advisory experts that understand our vision and drive us to deliver on it.
As a 100% employee owned company, our directors are also managers and shareholders of the companies. To ensure we are bringing fresh ideas and insights to the table, we have two independent advisors that help us define and implement our strategy and vision.

Meet our governance team

Stu Braxton - Independent Chair

Independent CHAIR (ADVISORY)
Stu Braxton

Stu is an advisor and executive coach. Stu has a wealth of expertise in brand and marketing disciplines, and as an advisor. His specialties include brand strategy, purpose and values, and executive performance coaching. He is an international marketing leader with 25 year's experience, including almost 20 years in Apple's Marketing Communications group. In recent years, Stu has worked as an advisor alongside some of New Zealand's best loved and fastest growing businesses. Stu has been an advisor to the Board of Directors since 2024.

Dan Tombleson - Managing Director

Managing Director
Dan Tombleson

Dan is a chartered member of Engineering New Zealand, and a chartered Company Director. He has a degree in Electrical Engineering and is passionate about all things engineering. He is a true advocate for what we stand for at Lumen - people first, client service, integrity, and adaptability. Dan plays an important role in implementing Lumen's strategic direction and upholding the Lumen values. Dan has been a member of the Board of Directors since 2017.

Peter Greenway - Director

Peter Greenway

Peter has nearly 30-years of valuable industry experience. With a degree in Civil Engineering, he began his career designing buildings before moving to London and working for BBC Transmission. Since returning to New Zealand in the mid-1990s, he has specialised in the design and management of overhead power lines. Peter also led Transpower’s Lines Asset Management Team for several years. Peter currently manages Lumen’s Overhead Lines team in New Zealand. Peter has been a member of the Board of Directors since 2017.

Brett Barnes - Director

Brett Barnes

Brett brings almost 20-years experience as a professional engineer in the power industry. With a degree in Electrical Engineering and an interest in Project Management, his background includes working on substations, lines, and various windfarm developments in varying roles, including design, asset management and specialised field testing. Brett currently manages the Asset Management and Electrical Team at Lumen.  Brett has been a member of the Board of Directors since 2019.

Rhys Vertue - Director

Rhys Vertue

Rhys currently manages Lumen's Overhead Lines team in Australia. Rhys is a qualified Civil Engineer with a range of industry experience having worked in both design and asset management projects in New Zealand, Australia, and Fiji. Before joining Lumen, Rhys worked in the Lines Asset Strategy team at ElectraNet. Rhys has been a member of the Board of Directors since 2023.

Matt Hannah - Independent Advisor

Independent Advisor
Matt Hannah

Matt is a specialist advisor to mid-sized businesses. He has over 10 years' experience working alongside privately held businesses to help them create and deliver strategies to achieve their aspirations. His in-depth industry experience includes the specialist manufacturing, professional services, and construction industries. Matt specialises in helping businesses deliver value added services, operate efficiently, and deal with challenges. Matt has been an advisor to the Board of Directors since 2021.

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