SIASS - Specialist Intelligence & Security Services

SIASS is a Newcastle based private investigation company. We specialise in commercial Technical Surveillance, providing Operations, Training and Equipment, based in Newcastle upon Tyne, with an operational presence around the UK.

​Newcastle Surveillance Service Specialists

Newcastle Private Investigator Services

​Offering bespoke private investigation services in Newcastle upon Tyne, tailored to meet the needs of our clients. Our experienced private investigators deliver discreet, cost-effective, covert surveillance services, using the most sophisticated technical equipment.

We provide the full spectrum of lawful specialist technical surveillance and security services primarily to Government and Corporate organisations as well as private individuals.

​Whatever the investigation subject matter, SIASS can provide professional, discreet and cost-effective surveillance services, to meet the needs of our clients.