Buyer: NHS Commercial SolutionsSupplier: Advance Construction Scotland Ltd; Ameresco Limited; Archus Limited; Axter Limited; BTU (Installation & Maintenance) Ltd; Britek Technologies Ltd; Building Design Partnership Limited; CBRE Managed Services Limited; Cenergist Ltd; Clairglow Heating Ltd; Dexmah Limited; Durable Ltd; Eco Green Group of Companies Ltd; Equans Services Limited; GW Power-Safe Ltd; Green Homes Grant Installs Ltd; ISS Mediclean Ltd.; Jeremy Benn Associates Limited; Joju Limited; Langley Waterproofing Systems Ltd; MJ Quinn Integrated Services Limited; Mabbett & Associates Limited; Mitie Limited; Optopia Ltd; Ove Arup & Partners Limited; Pure energy group; Quantaco Ltd; RSK ENVIRONMENT LIMITED; Ricardo AEA LTD; S I Sealy & Associates Limited; Smart Electronic Technologies Ltd t/a Energy Efficient Solutions; Specialised Electrical Solutions Ltd; Storage Display & Equipment (SDE) Ltd; The terra firma consultancy ltd; Tomson Consulting Limited; eEnergy Services UK Limited