Local government contractor, Environmental Waste Controls (EWC), has announced plans to float on London's alternative investment market (AIM) in order to raise £4m.

The Liverpool-based waste-management company employs more than 370 people, and has contracts with seven local authorities, the NHS and the Stobart Group. It has two divisions – one to deal with household waste, and another, which separates rubbish and sells it on to third party recycling companies.