Who are we - our committee


Danny is the current CETANZ Committee Chair

Danny became a committee member in 2014, and has been a member of CETANZ since its humble beginnings.

For the last 7 years, Danny has been working with GBCWinstone, as Lab manager to the many nationwide labs. Prior to that he ran the AECOM NZ national lab as well as practicing Engineering Geology. He enjoys seeing employees progress and succeed - he is passionate about careers in testing.

Danny plays touch rugby and enjoys spending time with his family, hunting, diving and fishing - which can be contradictory at times!

Danny Wyatt


Jayden is the Technical Manager of Stevenson Construction Materials. He has been with the company for 22 years.

Jayden has gained most of his experience working in the Stevenson Civil Laboratory which works closely with Quarry, Masonry, Concrete and Contracting operations. He completed is NZCE (CIVIL) in 2001.

Jayden is also Vice Chair of the Aggregates and Quarry Association (AQA) and a member of the following Technical Groups: AQA and NZRMCA along with NZTA’s National Technical Pavements Group.

In 2009 he became a life member of CETANZ and is the current Technical Group Leader and Immediate Past CETANZ Committee Chair.

In his spare time he enjoys fishing, boating and renovation of his old farmhouse and tractor.

Jayden Ellis


Sarah is the Secretary of CETANZ.

Sarah managers the Opus Hamilton Laboratory, which she has been doing for the last 8 years. Prior to that has spent some time with Opus as an Engineering Geologist and Laboratory Technician.  Sarah enjoys all aspects of site investigations, new techniques and likes getting her hands dirty.

Her passion is from a geology background, having completed a BSc (Earth Science) degree at Waikato Uni.

Sarah Amoore


Brigitte has worked in the Civil Testing Industry for over 20 years and is the National Manager for Geotechnics Sales Division and The Measurement & Calibration Centre (a division of Geotechnics).

She has been a member of CETANZ since its beginning stages and served on the first committee. Her current roles in CETANZ are Newsletter Editor and Treasurer.

Brigitte thoroughly enjoys the industry and working alongside all the people in it. Her goal is to assist CETANZ into developing a strong industry for future generations.

Outside of work she enjoys spending time with her family and horses.

Brigitte Sargent


Steven is the Auckland Regional Manager for Geotechnics Testing Operation.

Steven started his civil engineering testing career with Geotechnics a year after completing an Earth science degree at Waikato University.  He initially performed concrete and aggregate testing, but has since added soils and geotechnical testing.

Steven convened the first Civil Engineering  Laboratories Conference in 2006.  His involvement in the  creation of CETANZ and contribution to the industry resulted was  recognised by being made a CETANZ Life Member in 2009.  He was also part of the Connexis (now Connexis)  Industry Advisory Group developing the laboratory technician qualifications. Steven continues to serve as a Committee and Technical Working Group member.

Steve’s spare time is taken up with family, fresh and salt water boat fishing, the odd bit of home renovation and the occasional hunting trip.

Steven Anderson


Frank works for Downer NZ Auckland Laboratory. He has worked in various civil material testing laboratories as technician, team leader, supervisor, section head and lab manager in Auckland for last 15 years involving in aggregate, concrete, soil, environmental, asphalt and bitumen tests.

Frank was trained as a mining engineer and worked in the controlled blasting area for 10 years before moving to New Zealand - the last paradise in the world as they say.

He has 2 teenage children and likes watching his favourite rugby teams play, i.e. The Blues, Auckland and the Warriors.

Frank Hu


John came aboard the CETANZ committee in 2014, he currently works with Geotechnics in Auckland supplying laboratory, and field testing equipment to Engineers and Geotechnical groups around New Zealand and the Pacific.

In his spare time, John partakes in a range of sports such as football, cricket snowboarding and mountain biking. He also enjoys spending time outdoors tramping and fishing.

John King


Corey is the manager for the Christchurch branch of Geotechnics. Corey has carried out civil engineering field and laboratory testing over a period of 7 years throughout Australia and New Zealand. Corey became a committee member in 2016.

Corey Papu-Gread