Category 1:
• City of Bradford Council t/a Industrial Services Group
• Nationwide Windows (UK) Ltd
• Sovereign Group Ltd
• Specialist Building Contracting Ltd t/a Wrekin Windows/Permadoor
Category 2:
• City of Bradford Council t/a Industrial Services Group
• Nationwide Windows (UK) Ltd
• Sekura Trade Frames t/a The Sekura Group
• Sovereign Group Ltd
• Specialist Building Contracting Ltd t/a Wrekin Windows/Permadoor
Category 3:
• City of Bradford Council t/a Industrial Services Group
• Specialist Building Contracting Ltd t/a Wrekin Windows/Permadoor
Category 4:
• City of Bradford Council t/a Industrial Services Group
• Sekura Trade Frames t/a The Sekura Group
• Specialist Building Contracting Ltd t/a Wrekin Windows/Permadoor
Category 5:
• Eksalta Sustainable Retrofit Ltd t/a Eksalta Windows and Doors
• The New West Port Corportation t/a West Port Windows
• The Sashless Window Company Limited t/a Sashless Windows Ltd
Category 6:
• The Sashless Window Company Limited t/a Sashless Windows Ltd
Category 7:
• Sovereign Group Ltd
Category 8:
• Sovereign Group Ltd
Category 9:
• Twinfast Ltd t/a Knight Building Products
Category 10:
• City of Bradford Council t/a Industrial Services Group
• Harmony Fire Ltd
• Nationwide Windows (UK) Ltd
• Sovereign Group Ltd
• Specialist Building Contracting Ltd t/a Wrekin Windows/Permadoor
• Theaker Joinery Ltd
• Ventro Ltd
Category 11:
• City of Bradford Council t/a Industrial Services Group
• Harmony Fire Ltd
• Ventro Ltd