Greer IGS is a Private Detective Agency based in Stoke-on-Trent, Staffordshire and operates throughout the Midlands. We provide a wide range of investigation, surveillance and security services for the public, business and legal community.

Gryphon Management Limited (GML) is a new management and engineering consultancy business operating within the UK rail industry. Whilst GML provide a broad range of rail and industry related services, our field of speciality remains anchored to railway communications.