Companies who have signed up to the PPC since 27th October 2023 include: Forward Elevation Ltd, Allan Joyce Architects Ltd, Plain Design Limited, Robert Kirkland (Blyth) Ltd, Pacemake Limited, 5 Plus Architects London Limited, Solcom Limited, Quartz Electrical & Mechanical Services Ltd, UpNorth Engineering Services Limited, J A Kent Services (East Midlands) Limited, Group Metropolitan Limited, CDS Security & Fire Services Ltd