Private investigation firm based in Leeds.

BPI Investigations - services include video surveillance, child custody expertise, evidence gathering, and armed personal protection.

Investigation and fraud prevention consultancy provides blue chip clients around the world with specialist investigation services.

Private detective and security services.

Independent private investigators offering a range of specialist services.

Investigators, collectors and civil enforcement agents based in Durham, England.

Directory listing detective and investigation agencies.

Private detectives offering surveillance, divorce enquiries, tracing status enquiries, and more.

Approved agents to the legal profession and commerce.

Insurance fraud investigation, asset tracing, and strategic business intelligence. Based in Kent.

Investigative agency based in Norfolk.

Investigation and research company providing world-wide services to industry, commerce and the legal profession.

London detective agency providing a wide range of services.

Private investigators with offices in Worcestershire and Birmingham.

Private investigator and fraud specialist.

Professional detectives dealing solely in criminal appeals, miscarriage of justice, and false allegation cases.

Security, investigation and protection services. Based in London, Ontario.

London based investigative firm.

Service to the legal and insurance professions, and to commercial clients.

Due diligence, assets searches, litigation enquiries, background.