David Kemp

Programme Director, Turner & Townsend - RISE

David McEwen

unit38 Architects

David Pierpoint

Chief Executive & Founder, The Retrofit Academy CIC

David Shields

CEO, Value Match

David Smith

Independent Consultant, Freelance

Dean Calcutt

Founder, Eden Energy Management

Debbie Ward

Director, ASBP

Debbie Ward

Director, ASBP

Deborah Chittenden

Director, DESNZ

Derek Horrocks

Chairperson, NHDG

Diane Hubbard

Founder, Green Footsteps

Diego Bermudez

DICE Network+ Impact and Research Fellow, University of Exeter Business School

Dr Anastasia Nikologianni

Director of the Young Landscape Architects and Emerging Professionals IFLA World & Research Fellow, Birmingham City University

Dr Chunli Cao

Chief Executive Officer, Healthy Air Technology

Ed Andrews

Insta Group

Efrosyni Konstantinou

Director of Ethics, Bartlett School of Sustainable Construction, University College London

Elaine Toogood

Senior Director, Concrete, Mineral Products Association

Ele George

Founding Director, Elevate

Eleanor Purser

Managing Director, Warmer Homes London

Eleni Polychroniadou

CEO, Sintali Limited

Ella Sanders

Heat Network Engagement lead, North West Net Zero Hub

Elli Nikolaidou

Heat Network Zoning Lead, South West Net Zero Hub

Ellie Horwich-Smith

Assistant Director, Route to Net Zero, Birmingham City Council

Elliot Newton

National Sales Manager – Heat Networks, Baxi

Elliott Bryant-Brown

Part I Architectural Assistant, StuCAN / Retrofit Action for Tomorrow (RAFT)

Emily Braham

Head of Strategy & Operations, Energiesprong UK

Emily Halliwell

Senior Structural Engineer, The Concrete Centre

Emily-Rose Garnett

UKGBC

Emma Bushell

Assistant Director, Head of Energy & Sustainability, City of London Corporation

Emma Fletcher

Chair of the RICS Residential Professional Group Panel and Low Carbon Homes Director, Octopus Energy

Emma Howard Boyd CBE

Chair, National Heat Risk Commission | Chair, ClientEarth Group Board | Co-Chair, HERA (formerly Climate Resilience for All)

Emma Mahy

CEO, IoT Solutions Group

Emma-Jane Danielsson

Heat Network Zoning Lead, Greater South East Net Zero Hub

Eoin Bailey

UK Innovation & Circular Economy Lead, 7 Steel

Ethan Wadsworth

Director, DiscreteHeat

Eve Choy

Sustainability Manager, Structure Tone

Federica Romeo Beattie

Head of Sutainability, Studio PDP - Existing Buildings Coordinator, ACAN, Studio PDP/ACAN

Fiona Barbour

Technical Director - Flood Risk, Mott MacDonald

Fred Labbe

Director, Expedition Engineering

Gabriel Gallagher

Managing Director, Sustainable Energy Ltd

Gareth Field

Retrofit information support and expertise (RISE) Supply Chain Lead, RISE

Gary Clark

Principal and Managing Director, HKS London and co-author of the RIBA Sustainable Outcomes Guide

Gary Elliott

Chief Executive and Founder, Elliott Wood

Gary Lawson

Sustainable Group

Gary Winn

Chartered Architect, Chartered Building Engineer and Chartered Arboriculturist, Arbitect Ltd

Gavin Haynes

Director of Property Management, London Borough of Camden

George Massoud

Director, Material Cultures

George Simms

Head of Net Zero Homes & Communities, West Midlands Combined Authority

Georgie Hopkins

DICE Network+ Manager, University of Exeter Business School

Gilles Alvarenga

WLC & Circular Economy Lead, Cundall

Gizem Eren

Project Specification Manager, Saint Gobain Retrofit & Refurbishment

Grainne Regan

Propositions Director, E.ON Next

Gwilym Still

Director, Max Fordham

Ha Phan

R&D Lead, AgrekaBuild

Hafiz Elhag

Sustainability Manager (concrete products), Mineral Products Association

Hannah Reynolds

Architect - Historic Building Climate Change Adaptation Team, Historic England

Hannah Spungin

Deputy Director, Bristol City Leap

Harriet Evans

Sales Director, Qvantum UK

Haydn Scarborough

Director, Fineline Architectural Design Ltd.

Heather Rumble

Senior Lecturer in Healthy Urban Environments, University of the West of England

Heidi Au Yeung

Sustainability Lead & Architect, Studio Egret West / YADA Board

Helen John

Landscape Architect, Yes Make

Helena Charlton

Director of Heat Networks, OFGEM

Hugh McEwen

Director, Office S&M Architects

Ian Rippin

Chief Executive, MCS

Ines Wittke

Senior Policy Manager, Energy and Environment, Public First

Isabel Allen

Editor, Architecture Today

Isabelle Nest-Coleman

Warmer Homes London

Jack Adkins

Senior Associate, The Carbon Trust

Jack Ostrofsky

Partnerships and Programmes Director, Warmer Homes London

Jack Taylor

General Manager of Europe, Allume UK | SolShare

Jade Lewis

Chief Executive, Jade Advocacy

James Cadman

Head of Consultancy & Climate, Action Sustainability & Supply Chain Sustainability School

James Ivin

Environmental & Sustainability Manager, Overbury and Morgan Lovell

James McCosh

Principal, van Heyningen and Haward Architects

James Turner

Mikhail Riches

Jamie Abbott

Director, Climate Programme Partners

Jamie Brookes

Director of Green Funding Solutions, EON

Jamie Keats

Director, Wrapt Homes

Jamie Shaw

Global Sustainability Director, Karndean Designflooring

Jan Kattein

Director, Jan Kattein Architects

Jana Dardouk

Resolve Collective

Jason Millett

Group Chief Executive, MACE Group

Jay Saggar

Programme Manager: Data, Smart Cities & Cyber Security, LOTI

Jenny Pierpoint

Chief Operating Officer, The Retrofit Academy (CIC)

Jeremy Till

Chair, ACAN! Steering Group

Jess Hrivnak

Sustainability Lead, RIBA and member of the UKNZCBS’ Technical Steering Group

Jessica Skilbeck

Director, DESNZ

Jez Climas

Head of Business Development - Renewables, City plumbing

Jo Butterfield

Southern Housing

Jo Elnaugh

Principal Sustainability and Built Environment Specialist, Essex County Council

Jo Wheeler

Co-Head, Policy and Places, UKGBC

Joanna Yarrow

Chief Impact Officer, Human Nature

Joe Carter

Development and Design Manager, Criterion Capital

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