Mitie and Esoteric Ltd
With Esoteric, Mitie delivers a truly integrated specialist security service, safeguarding everything that’s important to your organisation through technical surveillance countermeasures and counter‑espionage expertise.
Comprehensive protection for key assets and information
With a foundation in technical surveillance countermeasures (TSCM), Esoteric specialises in proactively protecting sensitive conversations, information and assets from threats, attacks and espionage. Its services include bug detection, counter surveillance, radio‑frequency‑shielded rooms, security risk analysis and physical security penetration testing. The team identifies potential vulnerabilities and implements threat mitigation, with additional expertise in evidence collection to support action against theft, fraud or espionage.

Highly‑experienced, accredited experts
Esoteric is the only UK company with an accreditation from the National Security Inspectorate for both electronic sweeping and covert investigations – a hallmark of excellence. With customers around the world, the company supports blue‑chip organisations, government bodies and individuals.
This acquisition builds on our existing capabilities as the UK’s leading provider of technology and intelligence‑led security services. Following the acquisition, we created Mitie Intelligence Services (MIS), which now delivers all specialist and bespoke security solutions.
“By combining the intelligence and expertise of the Security Operatives we employ at sites, with Esoteric’s counter surveillance expertise, we can offer our clients a truly comprehensive security service that protects against emerging threats.”
Combined power of Mitie & Esoteric
TSCM and bug sweeping
Our team uses advanced equipment to conduct physical and technical inspections to identify all forms of eavesdropping attacks.
In-place monitoring with 24/7 countermeasures
With 24/7 bug detection, we protect confidential meetings from illicit eavesdropping devices such as concealed GSM bugs and mobile phones.
Shielded rooms
Our independent testing services confirm the effectiveness of a room at preventing transmissions entering, as well as offering shielded room consultancy.
Cyber TSCM
Enhanced TSCM inspections bridge the gap between traditional eavesdropping and cyber-attacks for your organisation’s most sensitive environments, including data centres and comms rooms.
Physical penetration testing
Identifying weaknesses in physical security controls through controlled, intelligence‑led penetration testing.
Cyber espionage response and review
We’ll investigate actual or potential cyber espionage incidents to help your leaders take informed action quickly and efficiently.
Information security strategy
Working alongside your security teams, we’ll identify to protect confidential information more efficiently.
TSCM training
Delivered by leading security educators, our TSCM training courses and espionage awareness programmes reduce risks and support long term protection.
Electromagnetic egress security review
We’ll help you understand whether your premises are vulnerable to information loss or attacks from opportunistic radio frequency (RF) interception.
TSCM equipment
We provide independent TSCM equipment advice, procurement and training to deliver bespoke, efficient TSCM capabilities.
Covert surveillance
If you suspect a crime or fraudulent activity within your organisation, our bespoke covert surveillance services help you identify and gather hard evidence.
Esoteric bolsters our sector expertise
Central government
We provide a full range of hard and soft services to support your critical infrastructure.
Financial & professional services
We help global finance and professional services organisations operate locally with expert cleaning, security, design, sustainability and digital services.
Retail
Mitie takes an efficient, lean approach to making sure your sites are secure and pleasant for everyone.
Media, telecoms and tech
Connectivity is at the heart of everything in the modern world.