Greg Langton (Chairman)

Greg Langton is married to Rachel, and they have a busy three year old son who loves climbing trees and riding his bike. Greg is passionate about youth mentoring and has seen many mentoring relationships positively impact lives. As a Consultant and Project Manager, Greg been involved in major infrastructural, industrial, commercial and residential projects across NZ. Greg holds a Bachelors of Law and Commerce from the University of Auckland, where he was President of the Students Association and a Council member. Greg and Rachel have been part of the founding core team that initiated Aspiring Leaders Forum in NZ where he continues to be involved in young leader development & mentoring etc. As BIA’s Chair, Greg enjoys working closely with the board, Dave and the team to help provide oversight, develop BIA’s strategy and keep things humming.


Bill Grayson (Treasurer)

Bill is co-founder of Brothers in Arms and currently practices as a Consultant Chemist and Forensic Analyst where his skills are frequently sought throughout New Zealand to address regulatory matters, technical issues relating to intellectual property, litigation, and insurance claims including serving as an expert witness in High Court actions both civil and criminal. Bill holds a Bachelor of Science from Auckland University and a Fellowship with the NZ Institute of Chemistry. He is also a Trustee for The Village Charitable Trust, the New Foundations Trust, and a Trustee of Christian Community Fellowship. He is an active member of the day-to-day team.


Alayna Matthews

Alayna comes to the BIA Board with extensive Care & Protection knowledge from her time as a youth social worker with the Police, as a social worker at James Cook High School, and currently with Child, Youth and Family in Manurewa. Alayna is an active member of the team providing support and training for volunteers and advising on any Care and Protection issues that may arise involving volunteers and young people.


John Tuckey

John is a respected Urological Surgeon working in private practice and at Auckland and Middlemore Hospitals. He has a passion for fishing and hotrods (in fact, anything with an engine) and is dedicated to the cause of youth development through Brothers in Arms, offering support and help whenever needed.


Lisa Silipa

The newest member of the board, Lisa worked for Brothers in Arms for four years, first as a Mentoring Coordinator and then as General Manager, before recently leaving to complete her Masters in Social Work. She is passionate about many social justice issues and the restoration of relationships. Lisa holds a Bachelor of Laws and Bachelor of Arts from Auckland and Toronto Universities. She loves travel and has lived in Canada, New Caledonia and Spain, but now happily calls Aotearoa home again. Lisa is married to Gary, who has been roped into volunteering at many BIA events and camps over the past few years! Although no longer involved in the day-to-day running of BIA, Lisa remains one of the biggest advocates of the mahi of BIA and the profound impact it has on young people’s lives.