2025 Annual report | BRGM - French geological survey

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Message from the president

Catherine Lagneau

“BRGM will continue to play its vital role in the ecological and energy transition, in building the resilience of regions and in safeguarding national sovereignty by pursuing its bold and ambitious strategy”

Catherine Lagneau
Chair and CEO

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Numerical indicators

Income Expenses

+€0.2M

BRGM EPIC
operating income in 2025

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2025 great achievements

Geophysical and geological data around Mayotte and the other islands of the Comoros archipelago were collected in the course of the SISMAORE oceanographic survey from 23 December 2020 to 11 February 2021. © brgm

Geophysical and geological data around Mayotte and the other islands of the Comoros archipelago were collected in the course of the SISMAORE oceanographic survey from 23 December 2020 to 11 February 2021. © brgm

Geology and subsurface modelling

Mayotte: major advances in understanding the local and regional context

The national piezometric network, which includes MétéEAU Nappes, has 1,600 real-time groundwater level monitoring points, as shown here in the Pays de la Loire region. © brgm

The national piezometric network, which includes MétéEAU Nappes, has 1,600 real-time groundwater level monitoring points, as shown here in the Pays de la Loire region. © brgm

Groundwater and resource preservation

MétéEAU Nappes: a strategic groundwater management tool

InfoSols helps to keep a record of the locations and activities of former industrial sites, for example, the Union brownfield site in Roubaix (Hauts‑de‑France) shown here. © brgm

The subsidence study covered 41,000 coastal flood plains in Europe, particularly those with critical infrastructure and activities, such as the port of Arès in the Arcachon basin in the Gironde department of south-west France. © Observatoire de la côte de Nouvelle-Aquitaine, Agence Odds

Risks linked to the ground and subsurface

InfoSols, an optimised platform for information about polluted soils

Coastal marshes in the Bay of the Somme. The Life Adapto+ project promotes the flexible, integrated management of coastal areas. © Adobe Stock

Coastal marshes in the Bay of the Somme. The Life Adapto+ project promotes the flexible, integrated management of coastal areas. © Adobe Stock

Risks linked to the ground and subsurface

Anticipating coastal risks with the CoCliCo and Life Adapto+ projects

A view of the interior of the main chamber of the mine in Le Pradal, before (left) and during (right) its infilling with concrete. © IGECAV

Ensuring the safety of buried pipes by injecting concrete. © BRGM - DPSM

Risks linked to the ground and subsurface

Le Pradal: a mine that has been partially filled in to ensure the village’s safety

Geophysical data are collected primarily through airborne surveys like this one in the Massif Central. © Alexandre Magnan

The demand for copper is constantly increasing, driven by the growing demand for electrical vehicles. © Adobe Stock

Mineral resources and responsible supply

A new inventory to better understand France’s mineral resources

A Geoscan survey was conducted in the Paris region in 2024 in order to obtain seismic profiles of the subsurface using the seismic reflection method. © S3-Robert Famy

A Geoscan survey was conducted in the Paris region in 2024 in order to obtain seismic profiles of the subsurface using the seismic reflection method. © S3-Robert Famy

Subsurface energy and decarbonisation

Deep geothermal energy: a national inventory to reveal French potential

Sequencing data processing steps in BRGM’s integrative digital platform (PNI) as part of its remit to update the national inventory of mineral resources. © brgm

Sequencing data processing steps in BRGM’s integrative digital platform (PNI) as part of its remit to update the national inventory of mineral resources. © brgm

Digital technology for geoscience

The integrative digital platform (PNI): a sharing platform for science

2025 activity by major societal issues

Geology and subsurface modelling

Lake Gentau and the Pic d’Ossau as seen from the Col d’Ayous (Pyrénées-Atlantiques). © Getty Images

Groundwater and resource preservation

The source of the Sorgue at Fontaine-de-Vaucluse (Vaucluse) © Getty Images

Risks linked to the ground and subsurface

Investigating an underground karst cave, the Grotte des Cavottes, located in Montrond-le-Château (Doubs). © BRGM - Silvain Yart

Mineral resources and responsible supply

$Network of mineralised fractures in the San Miguel open-pit mine, Spain © BRGM - Johann Tuduri$

Subsurface energy and decarbonisation

Napoleon Crater, La Soufrière volcano (Guadeloupe). © BRGM - Chloé Jacson

Digital technology for geoscience

BRGM aims to use scientific and technological advances, particularly artificial intelligence, to integrate all subsurface data regardless of its source or nature in order to improve understanding, modelling and simulation, with a view to enhancing predictive capabilities. © EFIL

Institution life

Fluorite vein in the Massif Central. Classified by the European Union as a substance of high criticality, fluorspar is used as a source of elemental fluorine in numerous chemical industries, as a flux in metallurgy, and in the glass and ceramics industries. © Rémi Flament / STRATES

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