Cancer Research UK

English Heritage

RNLI

The Crown Estate

National Lottery Heritage Fund

Guide Dogs

The Woodland Trust

Kew Gardens

Scottish Canals

Devon County Council

Oxfam

Tate

National Trust

Macmillan Cancer Support

West Suffolk College

ASBP

Ashden

Blenheim Palace

British Mountaineering Council

CAFOD

Canal and River Trust

Centre for Sustainable Energy

Charterhouse

University of Chester

Church of England

Community Energy England

Devonshire Group - Chatsworth House

Ealing Council

Field Studies Council

Fit for the Future Network

Forestry England

Museum of the Home

Gloucester Cathedral

Highlands and Islands Airports

Historic England

Historic Environment Scotland

Historic Royal Palaces

HOPE Nepal

INTO

NCVO

Oxford House

Peak District National Park

Pembrokeshire Coast National Park

Regen SW

Royal Household Property Section

Society for the Environment

Somerset House

STBA

Suffolk County Council

Sustainability West Midlands

The Churches Conservation Trust

The Co-operative Group

The Rothschild Foundation

The Whitworth Art Gallery

West Suffolk Council

WWF

WWT

YHA

Zero Carbon World

Amnesty International

Arcadia Fund

British Heart Foundation

Grosvenor Estate

The Landmark Trust

Chelsea Physic Garden

Royal Yachting Association

Avanti West Coast

Bradford Trident

Butterfly Conservation

A Future Without Rubbish CIC

Wildlife Trusts

Portsmouth Cathedral

Royal Parks

Break Charity

The Health Foundation

Holkham Estate

South Kensington Estates (SKE)

The Architectural Heritage Fund

Salvation Army Trading Company Ltd (Satcol)

The Royal British Legion

Ditchley Foundation

Royal Armouries

Lambeth Council

Victoria and Albert Museum (V&A)

Watatunga Wildlife Reserve

Stonegrove Community Trust

Secret World Wildlife Rescue

Exmoor National Park Authority

Fulham Palace Trust

Northamptonshire ACRE

Dundee Museum of Transport

World Horse Welfare

Hampshire Cultural Trust

Archdiocese of Cardiff

Painshill Park Trust

The Penllergare Trust

Universities UK

Starting Step

The Vindolanda Trust

Alzheimer Scotland

Royal Hospital Chelsea

Dogs Trust

Glasgow AMIS

Urban Green Newcastle

Banana Enterprise Network

Diocese of Salford

BAROD

Portsmouth City Council

Visibility Scotland

Restoration Trust

Horniman Museum and Gardens

Caring for God's Acre

Heritage Lab

Heritage Trust Network

Devon Guild of Craftsmen

Burslem Port Trust

The Children's Trust

The Postal Museum

Otley Town Council

Canine Partners for Independence

Our Big Picture

Teatro Vivo

Bath Preservation Trust

Northern Visions

Kala Sangam

Wentworth Woodhouse Preservation Trust

Worcestershire Building Preservation Trust

The Anne Frank Trust

Royal Botanic Garden Edinburgh

St Andrews Preservation Trust

Ripon Museum Trust

SW Lakes Trust

Somerset County Council

Black South West Network

Yorkshire Dales Millennium Trust

Sunny Bank Mills

RDLAC

Sandstone Ridge Trust

Commonwealth War Graves Commission

Caravan and Motorhome Club

Kentish Town City Farm

Climate Northern Ireland

Marie Curie

Going for Independence

Barnardo's

Community Arts Umbrella

Delapre Abbey

Duchy of Cornwall

Keech Hospice

Myatt's Fields Park

National Museum Wales

Royal Greenwich Heritage Trust

Science Museum

SHARE Museums East

Wirral Archaeology

University of East Anglia

Canterbury Christ Church University

Old Operating Theatre and Herb Garret

Birmingham Botanical Gardens

Historic Houses

Gloucester Civic Trust

Art in Romney Marsh

Cumbria's Museum of Military Life

Northern Viaduct Trust

The Gardener's House

IFIS

Bloomsbury Festival