Buyer: Southern Water Services LimitedSupplier: 1ST EXECUTIVE LIMITED; 4C ASSOCIATES LIMITED; AECOM Ltd; ARCADIS CONSULTING (UK) LIMITED; Accenture UK Limited; Allora Infrastructure Limited; BARINGA PARTNERS LLP; Capita Business Services; Cumming Group Infrastructure Limitede; DEECON CONSULTING LIMITED; Efficio Limited; GLEEDS LLP; Gardiner and Theobald LLP; Government Campus - Ernst & Young LLP (EY); Long O Donnell Associates Limited; PA CONSULTING SERVICES LIMITED; PRICEWATERHOUSECOOPERS LLP; PROCUR3D CONSULTING LTD; ROSEMAE PROCUREMENT LIMITED; ROWSELL WRIGHT LIMITED; Turner & Townsend Infrastructure Limited; WSP UK Ltd