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Working Groups
& Liaisons 

Working Groups

Working Groups will be established throughout the year to deliver industry projects and outcomes.

 

If you have an interest in getting involved in an NZ Arb Working Group or are able to support with specific skills, please contact NZ Arb today (administrator@nzarb.org.nz). 

 

Keep an eye on NZ Arb communications also for Working Group vacancies and leadership opportunities as they arise.

Standing Sub-Committees & Working Groups

UA Committee
(Utility Arborist Development)

Chair: TBC

Exec Rep: Derek Winwood

Members:

Colin Winch,

Carol Cairns,

Paul Brown,

Trevor Gardiner,

Ed Laity,

Mark Roberts (Roberts Consulting),

Peleti Tuala-Fata,

Jaiden Palmer (Franklin Trees),

Tom Kitson,

Ryan Grant,

James Sokalski,

John Te Amo

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Contact
Registered Master Arborists NZ Working Group

Lead: Richie Hill (Paper Street Tree Company)

Exec Rep: Richie Hill (Paper Street Tree Company)

Members:

Brad Cadwallader (Cadwallader Tree Consultancy),

Clive Barnes (Auckland Council),

Jack Taylor (Vertical Arborists)

Contact
Registered Consultants Programme Working Group

Lead: Andrew Benson (The Tree Consultancy Company)

Exec Rep: David Spencer (Tend Trees)

Members: 

Howell Davies (Auckland Council)

Contact
Ask an Arborist Working Group

Lead: Mark Armistead 

Exec Rep: Mark Armistead

Regional Coordinators

Auckland: Leon Saxon

Wellington: Lydia Mihaka

Waikato/BoP: Craig Lamb (Wintec)

South Island: Reuben Edwards (Fulton Hogan)

Contact
Sponsorship & Fundraising Committee

Chair: Tim Rillstone

Exec Rep: Tim Rillstone

Contact
Workshops Committee

Chair: Tim Rillstone

Committee: Scott Geddes

Contact
NZ TCC Committee
(New Zealand Tree Climbing Competitions)

Chair: Craig Webb (Craig Webb Consultant Arborist)

Exec Rep: Scott Geddes (Auckland Tree Services)

Head Judge: Craig de Denus (Arb Innovations)

Head Tech: Andy Neverman 

Kids Climb: Branch Dwellers

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Auckland: Dale Thomas 

Waikato/BoP: Craig Lamb (Wintec)

Wellington: Josh Symes (Wellington City Council)

South Island: Raoni Hammer (The Tree People)

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Contact
Conference Working Group

Lead: TBC

Exec Rep: Tim Rillstone (All About Trees)

Members:

Andrew Benson (The Tree Consultancy Company),

Derek Winwood (Invercargill City Council)

Lea Boodee (OnCue),

Nicki van Asch (OnCue)

Contact
Skills Shortage & Career Pathway Working Group

Lead: Ben Worth (Treescape)

Exec Rep: David Spencer (Tend Trees)

Members:

James Isaacs (Tree King),

Kevin Birdsall (Treescape)

Contact
Membership Committee

Chair: TBC

Exec Rep: Jak Harris

Contact
Marketing Working Group

Lead: TBC

Exec Rep: Seb Bainbridge

Contact
Membership Committee

Chair/EC conduit: Jak Harris

Members Richie Hill, James McDuff

Contact

Liaisons & Representatives

NZ Arb has the following Executive-appointed Liaisons, Representatives and similar positions.

 

The various roles below are charged with presenting quarterly reports to the Executive Committee at the Executive meetings.

Standing Liaisons & Representatives

Arbor Day Co-ordinator 
(Arbor Day Planning & Programmes)

Co-ordinator: Mark Roberts (Roberts Consulting)

Contact
ISA Certification Certifiers 
International Society of Arboriculture Certified Examinations

Proctors:

David Glenn,

David James (David James Tree Services),

Mark Roberts (Roberts Consulting)

Contact
MOU Partners Liaison
(Memorandum of Understanding Development & Maintenance)

Liaison: Howell Davies (Auckland Council)

Contact
Website Warden

Liaison: Toby Chapman (Christchurch City Council)

Contact
Advocacy – Stop The Chop Support

Liaison: VACANCY

Contact
ACOP Liaison 
(Approved Code of Practice Part 2 Review)

Liaison: David Glenn

Contact
ISA COR Chapter Representative
International Society of Arboriculture Council of Representatives

Representative: Richie Hill (Paper Street Tree Company)

Contact
NZ NTT Liaison 
(New Zealand Notable Trees Trust Communications)

Liaison: VACANCY

Contact
Advocacy – Stop The Chop Support

Liaison: VACANCY

Contact
ArbFest 2025 Working Group

Liaison: Jono Summers, Chelsea Robinson

Contact

Interested in Joining a Working Group or becoming a Liaison?

Click the button below to enquire about volunteering with NZ Arb.

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