Our relationships are built on a platform of genuine care; we listen with open minds. We're accessible as well as adaptable - seamlessly becoming an important part of any project team.

Client Leaders

Angela Young

Senior Marketing Specialist

Brett Ogilvie (Dr)

Executive Leader - Environmental

Casey Giberson

Manager – Strategic Consulting

Charlotte Reed

Digital & Data Solutions

Chris Bauld

Discipline Director - Infrastructure

Chris Boyd

Melbourne Leader | Principal Geotechnical Engineer

Chris Perks

Sector Director - Transportation

Chris Purchas

Sector Director - Waste

Clint Cantrell

Sector Director - Water

David Bouma

Business Leader - Dams (NZ)

Glen McIntosh

Senior Asset Management Engineer

Glen Nicholson

Sector Director - Industry & Energy

Grant Lovell

Sector Director - Land

Jenny Simpson

Air Quality Specialist + RMA Hearings Commissioner

John Leeves

Discipline Manager - Geotechnical

Kate Williams

Discipline Director - Advisory

Lean Phuah

Discipline Director - Science

Leon Pemberton

Discipline Manager - Hydrogeology

Manea Sweeney

Discipline Manager – Horizon Planning

Mark Foley

Nelson Group Manager

Michael Duffy

Senior Consultant – Relationships Advisory

Paul Burton

Executive Leader - Testing

Peter Cochrane

Discipline Manager - Water Engineering

Peter Roan

Discipline Director - Planning

Richard Reinen-Hamill

Sector Director - Natural Hazard Resilience

Robert Hillier (Dr)

Project Director - Geotechnical

Shamus Wallace

Discipline Director - Geotechnical

Shannon Richardson

Principal Planner

Simonne Eldridge

Executive Leader - Clients, Technical Director

Sjoerd Van Ballegooy (Dr)

Technical Director, Geotechnical

Sze-Fei Peng

Melbourne Leader |Principal Environmental Engineer

Tim Chadwick

Director T+T and Managing Director Chadwick Geotechnics

Tim Fisher (Dr)

Executive Leader - Engineering

Tim Vass

Melbourne Leader | Senior Principal Environmental Consultant

Tony Cussins

Technical Director, Hydrogeology

Technical Leaders

Chris Boyd

Melbourne Leader | Principal Geotechnical Engineer

Simonne Eldridge

Executive Leader - Clients, Technical Director

Sze-Fei Peng

Melbourne Leader |Principal Environmental Engineer

Tim Vass

Melbourne Leader | Senior Principal Environmental Consultant

Alan Gregory

Principal Transport Planner

Alex Davies-Colley

Environmental Scientist

Andrea Brabant

Discipline Manager - Planning

Andrew Shallard

Senior Civil and Environmental Engineer

Anna Ainsworth

Environmental Consultant

Anthony (Tony) Fairclough

South Island Geotechnical Co-ordinator

Bapon Fakhruddin (Dr)

Senior Natural Hazards/DRR Specialist

Ben Chester

Water Resources Consultant

Bryn Quilter

Senior Civil + Environmental Engineer

Caleb Sjardin

Environmental Consultant

Chris Hillman

Senior Environmental Engineer

Colin Dailey

Associate Pavement Engineer

Daniel Murray

Principal Planner

Daniel Tan

Team Leader - Enviro Engineering and Management

Darran Humpheson

Senior Acoustics Specialist

David Glover

Associate Geotechnical Engineer

David Leong

Water Resources Consultant

David Mangan

Technical Director Geotechnical/ Pavements

David Milner (Dr)

Team Leader - Geotechnical

Dean C Miller

Team Leader - Ecology

Dee Johnston

Talent Partner - People + Capability

Dr Daiquan Yang

Senior Principal Geotechnical

Dr Liz Curry

Team Leader – Ecology

Elyse Laface

Environmental Scientist

Gary Smith

Project Risk Director + Senior Engineering Geologist

Grant Eccles

Principal Planner

Grant Pearce

Civil Consultant

Heath Goble

Service Manager - Performance

Hugh Cherrill

Senior Environmental Engineer

James Hughes

Infrastructure Resilience Specialist

James Russell

Team Leader - Resilience

James Tinnion-Morgan

Mass Rapid Transit Specialist

Jennifer Carvill

Principal Planner

Joanne Ferry

Senior Contaminated Land Specialist

John Grimston

Senior Water Resources and Hydropower Consultant

John Hansford

Water Resources Consultant

Jonathan Coakley (Dr)

Senior Environmental Consultant

Jonathan Shamrock

Senior Civil/Environmental Engineer

Josh Markham

Team Leader - Ecology

Justine Quinn

Team Leader – Ecology

Karen Baverstock

Principal Planner - Team Leader, Planning

Kate Boylan

Sustainability Engineer

Kevin Hind

Senior Engineering Geologist

Liza Kabrle

Team Leader - Ecology

Lucy Hine

Contaminated Land Specialist

Luke Storie (Dr)

Geotechnical Engineer

Mark Foster

Design Manager + Senior Civil Engineer

Mark Morley

Environmental Consultant

Mark Pennington

Senior Water Resources Engineer

Mark Thomas

Senior Geotechnical Engineer

Mei Wang

Principal Hydrogeologist

Michael Triggs

Geotechnical Engineer

Mike Jacka

Senior Geotechnical Engineer

Nick Rogers

Geotechnical Consultant

Paul Walker

Team Leader - Contaminated Land

Pete Abernethy

Team Leader – Geotechnical

Peter Norfolk

Project Manager

Prasanna Punchihewa

Senior Pavement Engineer

Rachel Pickett

Environmental Consultant

Reuben Hansen

Principal Environmental Consultant

Richard Chilton

Senior Air Quality Scientist

Rob Van de Munckhof

Environmental Consultant

Roger MacGibbon

Principal Environmental Consultant

Roger Olds

Senior Principal Geotechnical Engineer

Sarah Schiess

Contaminated Land Consultant Wellington

Selene Conn

Fluvial geomorphologist

Shane Moore

Principal Environmental Scientist

Stuart Palmer

Technical Director - Earthquake Foundation Engineering

Tim Ensor

Principal Planner

Tim Morris

Project Director and Technical Director - Dam and Water Resource Engineering

Tom Bassett

Water Engineering Consultant

Tom Shand (Dr)

Senior Coastal Engineer

Tony Bryce

Senior Environmental Engineer

Tony Kortegast

Executive Leader - Strategic Projects. Industrial Facilities Auditor

Trevor Connolly

Team Leader – Ecology

Trevor Smith

Principal Engineering Geologist/ Technical Director

Virginie Lacrosse

Team Leader - Resilience

Business Leaders

Brett Ogilvie (Dr)

Executive Leader - Environmental

Chris Bauld

Discipline Director - Infrastructure

Chris Boyd

Melbourne Leader | Principal Geotechnical Engineer

Chris Perks

Sector Director - Transportation

Chris Purchas

Sector Director - Waste

Clint Cantrell

Sector Director - Water

Jenny Simpson

Air Quality Specialist + RMA Hearings Commissioner

Kate Williams

Discipline Director - Advisory

Paul Burton

Executive Leader - Testing

Richard Reinen-Hamill

Sector Director - Natural Hazard Resilience

Shannon Richardson

Principal Planner

Simonne Eldridge

Executive Leader - Clients, Technical Director

Sze-Fei Peng

Melbourne Leader |Principal Environmental Engineer

Tim Chadwick

Director T+T and Managing Director Chadwick Geotechnics

Tim Vass

Melbourne Leader | Senior Principal Environmental Consultant

Gary Smith

Project Risk Director + Senior Engineering Geologist

Tony Kortegast

Executive Leader - Strategic Projects. Industrial Facilities Auditor

Anthony Church

Service Director - Performance + Technology

Colm Whyte

Executive Leader - Business Services

Doug Johnson

Managing Director

Gary Stone

Executive Leadership Team - Chief Financial Officer

Jonathan Gee

Service Director - Operations

Kavita Khanna

Service Director - People + Capability

Lester Levy (Dr)

Tonkin + Taylor Group Board Chairman

Marje Russ

Director

Peter Millar

Australasian Business Development Manager

Richard Hancy

Strategic Advisor

Vic O'Connor

Geotechnics New Zealand - Managing Director