We dedicate our expertise to maintaining your structures’ health
400+ specialists ensure structures’ future in France and abroad
Since 1984, we have carried out thousands of assessments on Exceptional Structural Assets
A company with innovation in its DNA, providing the most effective solutions
A pioneer and independent leader in structural sustainability

SITES at a glance

Watching over your structures is our core business!

SITES is a structural health monitoring pioneer and a specialist engineering company dedicated to infrastructure performance and service life. Since 1984, SITES has provided all stakeholders in exceptional structural assets and their adjacent natural sites (including owners, contracting authorities, builders, managers, operators and insurers) with studies, methodologies, tools and solutions for the assessment and long-term monitoring of structural health, guaranteeing their safe, sustainable use and avoiding any unexpected operational interruptions or costly repairs.

SITES can implement the following skills separately or as integrated services:

  • – Inspections & assessments
  • – Testings, checks, surveys & measurements
  • – Monitoring & instrumentation
  • – Engineering & sustainability studies
  • – Technical assistance & owner engineer services

Managing risk through our services provides you with enhanced sustainability, enhanced security, simplified operations, and lower maintenance costs.


  • Monitoring engineering
  • Instrumentation


  • Monitoring
  • Risk assessment
  • Recommendations, upgrades


  • Optimisation
    of worksites risks


Surveillance and monitoring of the Louvre Pyramid

Since the construction of the Great Pyramid of the Louvre, SITES has provided an appropriate response to the problems of structural monitoring by deploying a global strategy for monitoring and monitoring the structure. The objective: control, monitor and analyse the development of its health over time. More than 30...

Load testing at the heart of ITER construction site

In compliance with instructions related to the current health context, our teams are mobilized every day to ensure the continuity of activities essential to safety, checks and inspections. Recently, our surveying and instrumentation experts carried out the loading tests of the double lift cranes tracks of ITER assembly hall...

SITES gets ISO 9001, ISO 14001 and ISO 45001...

SITES is now certified ISO 9001: 2015, ISO 14001: 2015 & ISO 45001: 2018. A triple certification which marks the result of the initial diagnosis led by AFNOR Certification. Obtaining this triple certification is the culmination of the daily work carried out by all employees to place customer satisfaction,...

Assessment of a bridge behaviour during a load test

Sensor Monitoring system, continuous recording of deflections, Surveying: focus on means implemented by SITES during a load test. SITES assignment was to check the behaviour of this 171m length prestressed concrete throughout a load test. After reinforcement works, the bridge has been load-tested in order to assess the additional...

Best wishes for 2020

To all its partners, customers, suppliers, colleagues and friends, SITES wish you a very happy new year and all the best for 2020.

HD mapping & structural monitoring

Watch the video to find out the HD Mapping possibilities for structural monitoring. This is an example of HD mapping possibilities performed on a periodical basis for structure monitoring. It enables to overlay to the nearest pixel of both digital twins for an accurate monitoring and new defects identifications....

Civil engineering works inspection in Côte d’Ivoire

On behalf of SOCOPRIM, SITES performed the initial in-depth inspection of a series of civil engineering structures in Côte d’Ivoire. The Henri-Konan-Bédié bridge, a 1,500 m prestressed concrete box girder deck viaduct, and the Valéry Giscard d’Estaing interchange made up of 16 prestressed concrete slab structures were meticulously examined...

Structural diagnosis of a cooling tower

SITES got involved with Sterbue in the structural diagnosis of a 91m height cooling tower with a diameter of 54m at the top. Sterblue performed a picture coverage using a drone with an automated trajectory function, enabling to divide site works time by 3. Based on its experience in...

SITES exports its expertise in Riyad

SITES group continues its international development with the signature of a contract for the preventive maintenance of the Riyadh metro infrastructure in Saudi Arabia. Over the next 10 years, SITES teams will use their experience and expertise to ensure the structural monitoring of civil engineering structures (tunnels, viaducts, bridges,...

Periodic inspections of structures on the S.E.A. high speed...

In the second half of 2019, SITES continued to carry out periodic inspections on structures crossing the South Europe-Atlantic High Speed Line (LGV S.E.A.) on behalf of the line’s maintenance operator, MESEA. To ensure these structures’ sustainability, SITES deployed a number of its skills, specifically visual inspections of structural...

Case study

SITES key figures

years of experience
of turnover
growth over the last 5 years
structures monitored each year
of turnover in R&D

SITES all over the world

• 6 offices in France
• 2 subsidiaries in China and South Africa (+ Saudi Arabia in 2020)

SITES is certified ISO 9001 : 2015, ISO 14001 : 2015 and ISO 45001 : 2018.