The largest & longest established investigators in London is Wilsons Consultancy Detective Agency Investigations and Surveillance services which was first established in 1951. 63 Years of continuous business in the UK and Overseas. Investigations by Wilsons Detective Agency includes: Surveillance, Vehicle Tracking, Communications monitoring, Honey Trap, Agent Provocateur, Relationship Matters and Corporate Intelligence. Investigation and Intelligence Gathering. We cover the whole of the UK with 24 branches in the Greater London area alone. Wilsons Consultancy is part of the EAI Services Group / EAIG Fund www.eaigfund.com