The Event Suppliers and Services Association (ESSA) held its latest AGM at the O2 in London on 3 April, with more notable firms backing its services. ESSA currently has 200 members, with 16 members added in 2014. ESSA has a 90 per cent retention rate, which has risen to 95 per cent this year so far. In 2013, around five per cent of ESSA members did not have their accreditation renewed after fa...