Professional Technical Surveillance & Security Services – UK Wide
Discreet, lawful, and expert surveillance operations, training and equipment — trusted by corporate, government and private clients.
Who We Are
SIASS is a UK-based specialist provider of technical surveillance and security investigation services, headquartered in Newcastle upon Tyne with operations across the UK.
We combine decades of experience, advanced technical expertise, and veteran-led professionalism to deliver discreet and effective solutions tailored to your needs.
Newcastle Surveillance Service Specialists
Our Core Services
Technical Surveillance Operations
We deliver professional, covert surveillance solutions for a wide range of investigations, using modern, high-performance equipment and methodologies.
(Examples of use cases: corporate investigations, workplace misconduct, risk monitoring, evidential surveillance)
Surveillance and Counter Surveillance Training
Training programmes for organisations and professionals on how to plan and conduct lawful technical surveillance.
Topics include device operation, evidence handling, and legal compliance best practices.
Surveillance Equipment
Supply of quality-assured covert technical equipment, including cameras, tracking systems and other lawful surveillance tools — tailored to client requirements.
Why Choose SIASS
Discreet & Lawful: All operations are conducted ethically and compliant with UK legislation.
Veteran Operated: Established by former British Army personnel, bringing discipline, integrity and operational expertise.
Nationwide Coverage: Full UK service delivery regardless of project size.
Client-Centric Solutions: Tailored services for corporate, government and individual needs.
Who We Work With
We support a broad range of clients, such as:
✔ Government agencies
✔ Private individuals with complex evidence needs
We also partner with leading technical specialists to ensure the best fit for every project.
Get In Touch
Let’s discuss how we can help you
Email: email@siass.org.uk
Call us for a free consultation today
VETERAN OPERATED
The unit was formed by ex-British army personnel in 2000 to provide professional services to clients world-wide.
SIASS continues to be Veteran operated, so you can be assured of the highest service level available.
For further information about what we do and how we do it take a look at our blog pages.