our Expert in Specialized Technical Operations

SIDON Construction: Your expert in specialized maritime, river, and underwater works throughout France.

Based in Lyon and operating across the entire French territory, SIDON Construction is a company specialized in underwater, maritime, river, port, and high-access works, serving both public and private project owners.
We operate wherever technical constraints are high, access is complex, and environments are demanding.

Our strength lies in a comprehensive multidisciplinary team, made up of engineers, project managers, site supervisors, certified Class 2A commercial divers, specialized technicians, rope access workers, and skilled laborers.
Each project is overseen by experienced professionals capable of designing, planning, and executing operations with high-level precision and standards.

SIDON Construction works on strategic and sensitive structures: port docks, locks, dams, dikes, wastewater treatment plants, bridge piers, submerged or hard-to-reach structures.
Our expertise is rooted in mastering hostile environments: immersion, confined spaces, polluted areas, height, strong currents, turbidity, etc.

Thanks to our operational experience, the quality of our equipment, and our strong commitment to safety and technical performance, we provide tailored, reliable, and sustainable solutions that comply with current regulations and meet the expectations of the most demanding clients.

At SIDON Construction, innovation is at the heart of our approach: we combine execution precision, technology, and on-site responsiveness to tackle the most complex challenges, both in France and internationally.

A word from the President: "Experience is the fruit of age; quality work is the reward of human will. This is the mindset that drives us at SIDON."
Benjamin ALLINE, President of SIDON

WHAT THEY SAY ABOUT US

Novembre 28, 2022 - Basque Country: The Delicate Salvage of a Wreck on Hendaye's Île aux Oiseaux... Read more : CLICK HERE

December 15,  2022 - Exceptional Salvage and Launch Operation... Read more : CLICK HERE

March 16, 2023 - Sidon – Expert in Specialized Maritime Works... Read more : CLICK HERE

SIDON Construction deploys its teams across the entire French territory — on land, at sea, in river, port, industrial, or remote environments.

From our base in Lyon, we carry out technical interventions in all types of complex environments, including offshore operations.

Our teams — certified commercial divers, specialized technicians, rope access experts, and site supervisors — respond quickly and efficiently to the geographic, climatic, and logistical constraints of each mission.

We operate regularly in:

• Port areas (quays, piers, pontoons…)

• Rivers and waterways (locks, dams, dikes…)

• Industrial zones and WWTPs (wastewater treatment plants)

• Civil engineering structures (bridge piers, submerged tunnels…)

• Marine and offshore environments for maintenance, inspections, or equipment installation.

Our commitment: to support you wherever technical expertise meets the most demanding environments.

SIDON Construction is a field-driven partner, fully operational throughout France, and capable of adapting to any configuration — including offshore and maritime environments.

Operations Throughout France… and Beyond