How to ensure the protection of the environment, property, and people?
Innovation
How to ensure a more efficient water management through innovation?
The Innovation Division works across all the divisions that structure PROLOG INGENIERIE. Its main mission is to implement cutting-edge digital technologies for the sustainable development of cities and territories.
Innovation
How to ensure a more efficient water management through innovation?
The Innovation Division works across all the divisions that structure PROLOG INGENIERIE. Its main mission is to implement cutting-edge digital technologies for the sustainable development of cities and territories.
Sanitation Division
What solutions can be proposed to support the ecological transition ?
We provide our clients with a robust expertise in urban hydrology and hydraulics to design solutions that provide bridges for the ecological transition.
Risks and Aquatic Environments Division
How to adapt to climate change and the increasing risks to public health and aquatic environments?
The Risks and Aquatic Environments Division offers a wide range of expertise and supports territories in their efforts to adapt to risks and to implement strategies towards and integrated water management.
Drinking Water Division
How to improve the performance of drinking water supply systems?
We conduct studies to enhance the understanding of drinking water supply systems and to identify the investments needed to improve the quality of the water distribution service.
IT Division SIGT
How can you secure and enhance your environmental data ?
Since 1989, SIGT has been developing specialized software solutions dedicated to the processing, analysis, and validation of data related to water and the environment. This IT expertise complements the group’s core areas by delivering powerful digital tools for effective environmental data management.
About us
Over nearly 40 years of activity, our group has established its identity and built a strong engineering culture.
PROLOG INGENIERIE relies on a team of around fifty professionals with extensive experience in the fields of water resources and environmental engineering. Engineers can operate at a level tailored to specific needs, acting as advisors, experts, or project managers.
About us
Over nearly 40 years of activity, our group has established its identity and built a strong engineering culture.
PROLOG INGENIERIE relies on a team of around fifty professionals with extensive experience in the fields of water resources and environmental engineering. Engineers can operate at a level tailored to specific needs, acting as advisors, experts, or project managers.
Our Values

Client Satisfaction
Attentive to its clients and committed to daily collaboration, PROLOG INGENIERIE offers tailored and customized solutions for each of its services.

Independence
PROLOG INGENIERIE is an engineering firm independent of any financial or industrial group, ensuring objectivity in all the assignments entrusted to it.

Expertise and High Added Value
PROLOG INGENIERIE brings together a team of experienced engineers, researchers, and geomatics specialists from top-tier educational backgrounds. Their training and expertise are key to ensuring the quality of our services.
Key Figures
More than 60 clients per year
Over 300 projects per year
Nearly 40 years of expertise
infraneo
PROLOG INGENIERIE: A member of the INFRANEO Group
Since June 2024, PROLOG INGENIERIE has joined the INFRANEO Group, “a major player in the engineering sector” (Structures, Soil and Water).
By joining the INFRANEO Group, PROLOG INGENIERIE brings its expertise and know-how in water and environmental management to the group, with a strong commitment to sharing its expertise and creating new synergies with the teams of the INFRANEO Group.
Over 300 Projects Per Year for Major Water Industry Players
Right Now
Our Latest News & Recent Activities
Participation de PROLOG INGENIERIE au Marathon International du Beaujolais– 2025
Cinq collègues, 42 km et une même volonté : porter haut les couleurs de PROLOG INGENIERIE au Marathon International du Beaujolais 2025 aux côtés d’INFRANEO. Retour sur une journée où effort sportif et solidarité se sont mêlés, entre villages animés, vignobles et...
PROLOG INGENIERIE médaillé d’argent du Seoul Smart City Prize
Une excellente nouvelle que nous sommes fiers de partager : PROLOG INGENIERIE a remporté, avec l’EPT Paris Est Marne & Bois et la startup Keyros, la médaille d’argent du Seoul Smart City Prize, grâce à la présentation d’un projet résolument innovant. Un succès qui...
Présence au forum des entreprises de l’INP – ENSE³ – 2025
PROLOG INGENIERIE a participé au forum des entreprises organisé par l’INP - ENSE³ le mardi 14 octobre 2025, réaffirmant son engagement à rencontrer les futurs ingénieurs de cette école reconnue, et sa volonté d’attirer les talents qui façonneront l’ingénierie de...
PROLOG INGENIERIE et la baignabilité en zone urbaine : l’ouverture des zones de baignade dans la Seine et dans la Marne
En 2024, tous les regards étaient portés sur la Seine, où se sont déroulées les épreuves de natation lors des Jeux Olympiques et Paralympiques. Cet été, la Seine et la Marne sont de nouveau au cœur de l’actualité, avec l’ouverture médiatisée de plusieurs sites de...
Our Offices
PARIS
PROLOG INGENIERIE et SAGEE
69-71 Rue du Chevaleret – 75013 PARIS
Téléphone : 01 45 23 49 77
prolog@prolog-ingenierie.fr

LYON
PROLOG INGENIERIE et SAGEE
11, rue Auguste Lacroix – 69003 LYON
Téléphone : 04 72 44 67 67
prolog@prolog-ingenierie.fr

BORDEAUX
PROLOG INGENIERIE et SAGEE
12, Rue du Manège – 33000 BORDEAUX
Téléphone : 05 57 78 68 97
prolog@prolog-ingenierie.fr






