Joe Jack Williams

Head of Regenerative Strategy, Bywater

Joe Pitts-Cunningham

Senior Experiential Learning Manager, UKGBC

Joel De Mowbray

Creative Director, Yes Make

John Allison

Deputy Director of Heat Networks, Department for Energy Security and Net Zero

John Coley

Director of Building Services, PICK EVERARD

John Edwards

Chair, IHBC Technical Panel

John Ferguson

Founder & CTO, SISALTECH LTD

John Taylor

Publications Manager & Technical Specialist, BSRIA

Jon Bootland

Director, Sustainable Development Foundation

Jon Moorhouse

CEO, Constructive Thinking Studio

Jon Vanstone

Chair, Industry Competence Committee

Jonathan Plant

Director and Chair, NLA Circular Economy Special Interest Group and C&W

Jordan Rochester

FPP Benefits

Joshua Collins

Heat Networks Manager, ALTECNIC

Juan Sebastián Cañavera Herrera

Senior Sustainability Engineer, Foster + Partners

Julia Baker

Technical Director, Nature Services, Mott MacDonald

Julia Barfield

Director Marks Barfield Architects and Steering Group Member, Marks Barfield Architects and Architects Declare

Julie Futcher

Urban Climate Consultant, Urban Generation

Justin Ward

Head of Policy & Technical Practice, Chartered Institution of Highways & Transportation

Kasang Kajang

Founding Director, Ksquared

Kate Watson

Retrofit information support and expertise (RISE) Technical Lead, RISE

Katherine Adams

Co-Chair Green Construction Board Resources, Waste and Circular Group and Co-Founder, Reusefully

Katherine Rusack

Head of Responsible Sourcing, Balfour Beatty

Katie Clemence-Jackson,

Chief Executive, UK Net Zero Carbon Buildings Standard (NZCBS)

Katja Stille

Director, Tibbalds Planning and Urban Design

Kelly Harrison

Director, Whitby Wood

Kevin Bell

Laing O'Rouke

Kevin Martin

Head of Tree Collections, Royal Botanic Gardens, Kew

Kieran O'Brien

Director, CIBSE Certification

Kieron Doick

Head Urban Forest Research Group, Forest Research

Kim Gault

Principal Sustainability Consultant, Cundall

Kim Yates

Director - Climate Change and Sustainability, Mott MacDonald

Kimberley Ertl

Senior Sustainability Consultant and Civil Engineer, Expedition Engineering

Kirsten Haggart

Associate Director, Waugh Thistleton Architects

Kirsty Wilman

Chief Operating and Financial Officer, Rebalance Earth

Kit Knowles

Director (Ecospheric), Ecospheric

Laura Baron

Head of Sustainability, Purcell

Laura Broderick

Programme Director, Good Homes Alliance CIC

Laura Hood

Programme Manager (Domestic Retrofit), North East Combined Authority

Laura Marks

Decarbonisation Project Manager, United Infrastructure

Laura Mohirta

Circular Economy Coordinator, ACAN

Laura Morgan Forster

Innovation Lead for Net Zero Heat, Innovate UK

Leonora Grcheva

Cities and Regions Lead, Doughnut Economics Action Lab (DEAL)

Lewis Knight

Director of Sustainable Places, Bioregional

Lewis Sharman

Advisor, Let Zero

Liam Forde

Manager – Infrastructure, Built Environment & Sustainability, MPA Ready-Mixed Concrete

Libby Peake

Senior Fellow and Head of Resource Policy, Green Alliance

Lisa Palframan

Senior Technical Manager - Environment, Homes England

Loreana Padron

Director, Carbon Futures

Lorna Taverner

Head of Architecture and Technical Design, Willmott Dixon

Lorna Walsh

Head of New Homes Customer Care, Peabody

Louise Clarke

Group Head of Sustainability, Berkeley Group

Louise Rogers

Impact Manager – Housing and Manufacturing, Built Environment- Smarter Transformation

Luay Al-Khatib

RICS

Lucy Allis

Interim Senior Strategy Manager - Low Carbon & Environment, York and North Yorkshire Combined Authority

Lucy Lyons

Chief Executive Officer, Kestrix

Luke Engleback

Founder, Studio Engleback

Macarena Cárdenas

Senior Advisor for Resilience and Nature, UK Green Building Council

Madeleine Pauker

Postgraduate Researcher, Energy Demand Research Centre

Madi Sharma

Business Development, Crawford & Co Surveyors

Maiia Williams

Passivhaus Thematic Workgroup Coordinator, ACAN

Marie Modeste

Senior Consultant, RISE

Marion Baeli

10 Design

Marion Lloyd-Jones

Technical sales and specification advisor, Back to Earth

Mark Atherton

Director of Environment,, Greater Manchester Combined Authority

Mark Burton

Head of Renewables, Dimplex

Mark Harris

Head of Sustainability - Roofing, Sika

Mark Nason

Head of Professional Practice, Chartered Institute of Ecology and Environmental Management (CIEEM)

Mark Rowe

Steering Group Member, ACAN

Marketa Hermova

Landscape Product Specialist, Vectorworks

Martijn Oostenrijk

CEO, Madaster

Martin Fahey

Head of Sustainability, Mitsubishi Electric

Martin Hunter

Associate Director, Landscape Architect, Robert Bray Associates

Martin McCluskey MP

Minister for Energy Consumers, Department for Energy Security and Net Zero

Martin Twamley

Technical Director, STEICO UK Ltd

Martyn Evans

Landsec

Mathew Freeman

Interior Designer, Freeman Studio

Matt Isherwood

Aira UK Managing Director, AIRA

Matt Jones

Project Coordinator Energy, Bristol City Council

Matt Ratcliff

Group Managing Director, Domna

Matt Robb

Marketing and Media Manager, Stone Federation Great Britain

Matthew Dodds

Director – Commercial Division, Herschel Infrared

Matthew Hart

Director of Residential New Build, E.ON Next

Megan Hulme

Head of Policy, Sustainable Energy Association (SEA)

Mel Allwood

Director and Sustainability Leader, Arup

Melissa Arthur

Group Head of Biodiversity, Barratt Redrow

Mete Coban MBE

Deputy Mayor of London for Environment and Energy

Michael Burchert

Board Member, BIWENA e.V.

Michael McGowan

Chairperson, NHDG Policy Group

Michelle Sanchez

Sustainability Lead, RSHP and Circular Economy Coordinator. ACAN, RSHP / ACAN

Mike Pitts

Deputy Director (Heat and Buildings), Innovate UK

Miles Lewis

Director of Sustainability, Clarion Housing Group

Mina Hasman

Sustainability Director, SOM

Monika Žilionytė

Sustainable Procurement Manager, Vinci Facilities

Morgan Lewis

CEO, Material Index

Munashe Mhemba

Graduate Planner, Marrons and Building the Future Young Planner of the Year 2025

My Linh Nguyen

Agreka Build

Naomi Diamond

Head of Practice, Collaborate CIC

Nathalia Da Costa Ferreira

Senior Engineer, AECOM

Nathan Bradberry

Partner, Bevan Brittan