Amba exists to solve challenging security problems. We work with governments, commercial companies and high net-worth individuals to implement strategies that protect assets and reduce operational risks.

Amba Defence was formed in 2013 when Shires Crichton put together a team to work on a series of security projects in the UK and the Middle East. After accepting seed investment, Amba acquired Ground Hawk Ltd, who were developing a range of innovative security technology; and RMS (CTAC) Integrated Solutions Ltd, a 24/7/365 alarm receiving centre.

In the following years, Amba's UK-based engineering business grew to monitor and support thousands of commercial security systems. Internationally, our security consultants gained experience working on projects for embassies, top hotel brands and prominent leisure developments.

Today, Amba focuses on security design for high-level end users. Our client base is international, but we retain a commitment to fostering British innovation and know-how.

Our head office is located on the beautiful Farncombe Estate, near Broadway, in the Cotswolds. Our ethos is about loyalty to every single client and complete commitment to the work we are conducting to secure their assets.


Security Consulting

Amba's security consultancy process analyses not only physical infrastructure but organisational policy, methodologies and procedures to assess vulnerabilities that could expose your assets.

Security Project Implementation

We operate an ISO 9001 Quality Management System and all our products are fully tested and certified to British and International military standards where appropriate.

Security Maintenance

Our Projects division focuses on maintaining new and existing security systems. We have engineers based across the country, ensuring that we can get to you when you need us most.

Security Monitoring

Amba operates an independent, state-of-the-art control room to deliver security and fire alarm monitoring, asset tracking and remote video surveillance service packages.

Our People

Shires Crichton


Shires Crichton is a Security Consultant who helps governments and commercial companies reduce risk and protect assets. Shires believes security design relies on people and procedures just as much as it depends on using the best and most appropriate technology. 

Before founding Amba, Shires worked at board level for a large international risk consultancy. As an electrical engineer, he is actively involved in all aspects of the business and still likes to oversee project work on site.

Shires is a Freeman of the City of London and a member of the Worshipful Company of Security Professionals.

Away from the office, Shires enjoys the country lifestyle and all things equestrian. 

James Ferrero


James Ferrero is a Systems Design Engineer who is an integral part of Amba. He assists the deployment of large scale technical projects and business systems together with managing our portfolio of sites.

Before founding Amba with Shires, James worked in the design sector with internationally acclaimed architect practice, achieving RIBA awards on a number of high-profile projects.  

Day-to-day, James can be found at our client centre on the Farncombe Estate, developing systems and procedures to keep our monitoring centre at the forefront of our business.

Outside the office James can be found cooking at home on Rupert the aga and managing a very large country garden.

Nicola Croft

Finance Director

Nicola Croft is a project management and finance expert who co-ordinates and manages Amba's project delivery teams.

Before Amba, Nicola moved to the North of England to enhance her project management and finance skills with a bespoke developer and achieved some incredible projects on tight deadlines and strict budgets. In addition to supporting our operations, Nicola is also responsible for day-to-day finance, ensuring everything is just in order.

At home, Nicola is generally sporting tweed and spends time on the estate working her English Setters.