RDCL’s team of geotech consultants and engineers is world class

When you engage us, we work together to achieve a common goal. That is what it means to be whanau.

The concept of whanau is central to RDCL's culture. It dictates the way we treat each other and work with you: with respect, trust, support and reciprocity. Our assets are exceptional people and clients. Our team of geologists, geophysicists, engineering geologists and geotechnical engineers is world class. They are also a great bunch of people to work with.

With offices in Hastings, Wellington, Auckland and Manila, our geotechnical consultants work with clients in all kinds of places from the Wairarapa, Kapiti Coast and Palmerston North from our Wellington base and across the North Island from our Hawke’s Bay and Auckland offices. We also have a great team in Manila who services the entire Philippines region. 

We invite you to join with us as we take our professional journey towards bigger goals.

Contact us.


Cam Wylie BSc, MSc (First Class Hons), MIPENZ (CPEng), MAusIMM (CP).  FOUNDER, MANAGING DIRECTOR & PRINCIPAL GEOTECHNICAL ENGINEER  ​  Cam has 20 years involvement in geotechnical practice and has held senior positions in consulting businesses in Asia and New Zealand.
Logan McLennan Bsc Geology  PROJECT MANAGER + QA/HSE MANAGER  Logan began his career with geophysics work on survey vessels in South East Asia and Australia.
Susan Hislop GENERAL MANAGER BUSINESS SERVICES  ​  Susan is responsible for company compliance and legislative obligations, including company and staff performance reporting.
Ben Bistouni BSc, MSc, NZGS  SENIOR ENGINEERING GEOLOGIST  Ben is an engineering geologist with eight years experience in mine geotechnics and land development.
Tom Bunny BSc Geology; PGDip Eng Geol  SENIOR ENGINEERING GEOLOGIST  Before joining RDCL, Tom was a Senior Engineering Geologist and Geotechnical Discipline Lead.



Elizabeth Cairns BSc, MSc (First Class) (Geology)  ENGINEERING GEOLOGIST  Liz is an engineering geologist.
Ollie Gibson SENIOR GEOPHYSICIST  Ollie is an engineering geophysicist experienced in a wide range of geophysical techniques across a diverse range of environments.
Phil Greville BSc Geology, MNZGS  ENGINEERING GEOLOGIST  Phil has six years experience in exploration and mine geology in Western Australia
Sirini De Silva BSc (Hons) Earth Sciences  ENGINEERING GEOLOGIST  Before joining RDCL, Sirini worked in Kaikoura on roading and infrastructure re-builds following the earthquake.
Krish Koria Geological Sciences (Petroleum Track), FGS  SENIOR ENGINEERING GEOLOGIST  Krish has a background in wireline and downhole geophysics and geotechnics.


Victor Escaro BSc Geological Engineering / Bsc Geology  GEOTECHNICAL ENGINEER  Victor is a licensed engineering geologist with more than five years experience in site investigation and geotechnical design.
Kaye Buenaagua BSc Tourism Management, Associate's degree in Hotel and Restaurant Operations  ADMINISTRATION MANAGER  Kaye has a background in event management, marketing, finance and telecommunications