Fast Track Company of the Year - Endurance Wind Power Inc.
Green PR firm of the year - Greenhouse PR
NGO of the year - Advanced Propulsion Centre
Green IT project of the year - Sudlows, data centre design and build project
Renewable Energy Project of the Year - National Trust, Plas Newydd Marine Source Heat Pump
Employee Engagement Campaign of the Year - Willmott Dixon, Re-Thinking campaign
Green Car of the Year - Volkswagen Golf GTE
Young Sustainability Executive of the Year - Hiten Sonpal, Lombard
Sustainability Team of the Year - Bupa, 20% by 2015 Network
Small Business of the Year - Clayworks Ltd
Politician of the Year - Joan Walley
Lifetime Achievement Award - Sir Ian Cheshire
Company of the Year - Good Energy
Entrepreneur of the Year - Andrew Wordsworth of Sustainable Venture Development Partners
Law firm of the year - ELM Law
Consultancy of the Year - Verco
Waste and Recycling Project of the Year - Closed Loop Environmental Solutions (CLES) and Simply Waste Solutions, Simply Cups recycling initiative
Energy Efficiency Project of the Year - L'Oreal Professional Products and Green Tomato Energy Ltd, Sustainable Salons initiative
Marketing/Advertising Campaign of the Year - Alliance Trust, Sustainable Investment Campaign
Sustainability Executive of the Year - Paul Southall, National Trust
Leader of the Year - Bill Eyres, O2 UK
Innovation of the Year - Desolenator, water purification system
All the photos from last night's glittering awards ceremony
On Wednesday night, the hottest day of the year, 500 executives, entrepreneurs, campaigners and politicians gathered in central London to celebrate the green economy at the BusinessGreen Leaders Awards 2015.
Here are all the winners from the night.
