Construction Manager is published on behalf of the CIOB, the Chartered Institute of Building.With over 42,000 members, the CIOB is the international voice of the building professional, representing an unequalled body of knowledge concerning the management of the total building process.Construction Manager is the highest circulation construction-based publication serving the UK built environment. With an audited circulation of 31,157 (ABC: July 2015-June 2016) it has more than double the circulation of its nearest two rivals combined. And this does not include any pass-on readership, which many of their competitors rely on to boost their readership claims.