Paul Joseph Docherty

Portcullis Computer Security Ltd. provides information security services. The firm specializes in security testing, digital forensics, cyber defense, and security consultancy services. It serves the central and local government, banks, manufacturing, charities, telecoms, utilities, insurance, retail, healthcare, energy, education, fast moving consumer goods, technology, financial services, and media industries. The company was founded by Paul Docherty in 1986 and is headquartered in Watford, the United Kingdom.