William Channon is the trading name of the long established business of the Butler family, A Butler and Sons Limited. The business is still run by the same family - almost 90 years and four generations on. Originally saddle makers and tool manufacturers, we now specialise in locks, security and architectural ironmongery through our two London offices. Areas serviced: Central Londonwww.wchannon.co.uk45 Theobalds Rd, WC1X 8SP

We are a specialised section of First Call, a professional, confidential, Private Investigation Agency, serving the legal, corporate and private sectors for over 14 years We provide a full range of services for our clients who have any suspicions about their partners Areas serviced: Central Londonwww.unfaithfulpartners.co.ukFlat 27/Falcon/Old Gloucester St, WC1N 3AA

We are dedicated to providing trained, vetted and insured private security officers and security services to local authorities, commercial factories offices and warehouses, entertainment, and domestic markets. We provide high-quality, professional protection and security services with close knit, highly experienced security officers. Ministry Protection Services Ltd operate a 24-hour a day, 365 day and night cover each year to protect property and people from attack. Areas serviced: Central Londonwww.mpsk9.biz27 Old Gloucester St, WC1N 3AF

We are a family run company with an extensive knowledge of all the locksmith trade. We provide a full range of services at great competitive prices, both to the public and comercial sector. Our company covers a vast area, covering London and surrounding M25 areas. We can provide our customers with quotations, burglary repairs (including insurance requests), lockouts and much more. Areas serviced: Central Londonwww.a-jlocksmiths.com27 Old Gloucester St, WC1N 3AF