About Us

Our aim is to supply our clients with the very best data, results and service possible by combining innovative technology with a wealth of industry specific experience.

About Us

Terravision operates nationwide in a huge variety of unusual and challenging locations. Specialising in surveying for public sector and energy sector (including nuclear) projects and Ministry of Defence sites, we have a team of security vetted personnel used to working on sensitive projects. We are proud to be approved specialist subcontractors for both Amey and Interserve on their defence contracts and have vast experience working with other contractors on the Defence Infrastructure Organisation supply chain.

Terravision Ltd was established in 2001, formed on a foundation of understanding and professionalism gained from company director, Digby Milnes’, experience in non-intrusive locating and mapping of underground utilities since 1993.

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Terravision uses sophisticated remote sensing instruments from the world’s leading manufacturers. This geophysical survey equipment is used to target buried utilities and infrastructure and form accurate mapping of pipe and cable positions, depths and routes. The results from our investigations provide a wealth of invaluable information for use prior to excavation.


A topographical survey is the basis for any design process as it provides information about all aspects of a site. A measured building survey is an accurate representation of a building which can consist of floor plans, elevations and internal sections. Terravision have several drones from fixed wing capable of covering large distances to multi-rotor for those hard-to-reach areas.


Terravision have a number of laser scanners that are used to gather detailed information to produce 3D models. We also have the ability to scan from the surface to a depth of 5m, which enables us to include detailed scans of underground routes that complement the utility scan whilst also allowing us to open up underground routes that would otherwise require confined space entry.

Our Clients

We value our clients greatly and feel privileged to have developed lasting business relationships with many of the UK’s leading consultant engineering, design and construction companies.

Repeat business makes up the core of our employment. However, we are always keen to develop new business and would be delighted to tender for your future projects.

Please do not hesitate to contact us for a quotation, or for advice on the feasibility or best approach in utilising non-intrusive investigations on your future projects.

Health, Safety & Environment

At Terravision, the safety and welfare of our personnel, the public and the environment is considered the most critical part of delivering a successful survey.

In August 2012 Terravision’s Occupational Health & Safety and Environmental Administration Systems were assessed and approved to meet standards and guidelines BS OHSAS 18001:2007 and BS EN ISO 14001:2004. The company has maintained this accreditation since and now holds BS ISO 45001:2018 and BS EN ISO 14001:2015 certification.

In July 2012 Terravision was awarded SSIP SafeContractor accreditation recognising Terravision’s commitment in setting and maintaining high standards of Health & Safety within the industry.

We were delighted to achieve the SafeContractor accreditation on our first application following a detailed screening process which examined the Health & Safety procedures of our operations.

Quality Assurance

Following the appraisal of our Quality Management System during July 2009, Terravision Ltd achieved certification to the requirements of BS EN ISO 9001. The company has maintained ISO 9001 accreditation ever since and now holds BS EN ISO 9001:2015 certification.

BS EN ISO 9001:2015 is a quality management system which identifies and monitors the processes we adhere to. This management system has been put in place to monitor, measure and analyse our operations and ensure we implement the actions required to maintain our high standards and the continuous improvement of our services.

The certification recognizes that we have systems in place to provide the highest levels of customer service and satisfaction. Combining internal monitoring and regulatory external audits every year, we ensure that we continue to maintain and improve our standards to the benefit of our customers, suppliers and employees and the overall efficiency and effectiveness of the company.