Buyer: Yorkshire Purchasing OrganisationSupplier: ACTIFORM LIMITED; AIRPORT CAPACITY SOLUTIONS LIMITED; Cleveland Sitesafe Ltd; ELITE SYSTEMS (GB) LIMITED; Health Spaces Ltd; Healthmatic Ltd; IDEAL BUILDING SYSTEMS LIMITED; Instaspace Ltd; Integra Buildings Limited; MCAVOY GROUP LIMITED - THE; MY FAB LIMITED; Mac Zero Modular Buildings Limited; P McVey Building Systems; PORTABLE OFFICES (HIRE) LIMITED; Portakabin Limited; Premier Modular Limited; QUBE STRUCTURES LTD; SILWOOD FACILITIES LIMITED; SKW CONSTRUCTION LTD; THURSTON GROUP LIMITED; Wernick Buildings; Western Building Systems; Zed Pods Limited