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Top 30 Construction companies in the Isère department

Tamtam tracks 52 Construction companies headquartered in the Isère department. This list ranks the 30 largest by number of employees on LinkedIn, led by ALTRAD PREZIOSO, SBI and SESA. Their median headcount is 33. Half of them were founded in 2000 or later. The most common headquarters are Grenoble (3) and Échirolles (2).

🇫🇷 Isère30 companiesUpdated Nov 11, 2026

The construction companies in Isère cover a wide range of specialized services within the sector. Firms like ALTRAD PREZIOSO provide multidisciplinary technical engineering for oil, gas, and power generation, while SBI acts as a general contractor for turnkey projects. Hydrokarst specializes in difficult-access and underwater operations, and GROUPE ACAF focuses on elevator and automatic door services. SESA designs and maintains water networks, and IDEC HAUTES TECHNOLOGIES is an engineering and general contracting company for high-tech environments.

Most of these companies are mid-sized firms, with ALTRAD PREZIOSO being a larger player. A notable pattern is the diverse specialization within construction, ranging from heavy industrial infrastructure to intricate finishing profiles by DINAC. Headquarters are spread across the department, with a concentration around Grenoble and its surrounding towns like Eybens and Sassenage.

#CompanyIndustryHeadquarters EmployeesFounded
1
ALTRAD PREZIOSOaltradprezioso.com

Provides multidisciplinary technical engineering services primarily for Oil, Gas, and Power Generation, assisting clients with asset life extension and cost optimization.

Construction 🇫🇷 Chasse-sur-Rhône 1,663 1957
2
SBIsbisas.fr

SBI specializes in turnkey construction projects as a General Contractor for professionals, managing projects from start to finish with a focus on cost, time, and quality

Construction 🇫🇷 Saint-Égrève 393 2001
3
SESAserfim.com

SESA is a group of 4 companies specialized in designing, implementing, maintaining, and optimizing water networks with expertise in various techniques like encroachment and dewatering

Construction 🇫🇷 Eybens 388 n/a
4
Hydrokarsthydrokarst.fr

Experts in difficult-access, hydromechanical, underwater, and hyperbaric operations. This includes securing cliffs, maintaining equipment, and executing complex projects in various sectors.

Construction 🇫🇷 Sassenage 225 1977
5
GROUPE ACAFacaf.fr

Specializes in elevator and automatic door services including maintenance, renovation, and installation with over 17,000 managed installations.

Construction 🇫🇷 Eybens 174 2000
6
CABESTAN SA SCOPcabestan.fr

Cabestan is a Cooperative of Activity and Employment in the Auvergne-Rhône-Alpes region, supporting over 300 professionals in various building trades

Construction 🇫🇷 Grenoble 134 2003
7
SOCIETE ALPINE D'ISOLATION THERMIQUEnuvia.com

Specialized in various construction services, with expertise in scaffolding, insulation, partitions, and ceilings Based in Grenoble with additional locations in France and Italy

Construction 🇫🇷 Bresson 70 1970
8
CARATELLIcaratelli.fr

CARATELLI, part of the SERFIM group, specializes in industrial installations, radioprotection solutions, and mountain works with a focus on quality and safety

Construction 🇫🇷 Crolles 69 1967
9
Eurobétoneurobeton.fr

Specializes in manufacturing and implementing reinforced and prestressed concrete elements for durable, aesthetic, and functional buildings across various sectors.

Construction 🇫🇷 Saint-Siméon-de-Bressieux 64 1991
10
MANANG

Specializing in construction and maintenance of all types of civil engineering structures in France, including concrete and metal works Skilled in various construction techniques

Construction 🇫🇷 La Buissière 62 2012
11
IDEC HAUTES TECHNOLOGIESidec-hautestechnologies.com

Engineering and general contracting company specialized in high-tech environments and buildings Recognized for excellence in design and construction across pharmaceutical, life sciences, and industrial sectors

Construction 🇫🇷 Saint-Ismier 55 2003
12
Rosin Grouprosin.group

Specializing in designing, manufacturing, and installing custom confinement elements like partitions, ceilings, glass, doors, and raised floors to suit various environments

Construction 🇫🇷 Varces-Allières-et-Risset 55 1966
13
DINAC - Quand La Finition Comptedinac.fr

French manufacturer specializing in finishing profiles for floors and walls (threshold bars, stair nosing profiles, tile profiles, accessibility products, metal structure doormats) Established in 1969

Construction 🇫🇷 La Mure 53 2022
14
SDEgroupeeos.com

Established in 1945, the company specializes in structural work in the Rhône-Alpes region, focusing on new construction projects and concrete structures for various sectors

Construction 🇫🇷 Grenoble 48 1945
15
Serpollet Dauphinéserfim.com

Specialized in distribution networks and urban infrastructure services, offering maintenance, lighting installation, and public safety services in the Isère region Part of a larger group with diverse expertise

Construction 🇫🇷 Pontcharra 33 n/a

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16
SINEQUANON'​sinequanon4.fr

Engineering firm providing construction site management services such as OPC monitoring, SPS coordination, VRD & landscape studies, and asbestos project management

Construction 🇫🇷 Échirolles 33 1967
17
RAVANAT CHAUDRONNERIEravanat.fr

Specializes in precision boilermaking, pressure equipment, and piping using stainless steel, aluminum, nickel alloys, titanium for various industries.

Construction 🇫🇷 Saint-Jean-de-Moirans 32 n/a
18
RVI Bureau d'Etudes Fluidesrvi-be-fluides.fr

RVI is a fluid, thermal, and carbon engineering firm specialized in energy renovation projects for commercial, residential, and industrial buildings, as well as new constructions

Construction 🇫🇷 Grenoble 31 2004
19
Fluid'Inoxfluid-inox.fr

Design, manufacture, and installation of complex stainless steel industrial piping networks for various fluid types across multiple sectors in France.

Construction 🇫🇷 Bernin 31 2010
20
Actemium Echirollesvinci-energies.com

A subsidiary of Vinci Energies, focused on industrial and commercial electrical work in Isère and Drôme, offering high and low voltage services and building equipment

Construction 🇫🇷 Échirolles 30 n/a
21
ECO CONSTRUCTIONecoconstruction-france.fr

A general contracting company in France, operating nationwide across various sectors with a focus on trade rules and customer satisfaction

Construction 🇫🇷 Dolomieu 25 2019
22
FONDATEC - Géotechnique | Etude de sols & Fondationsfondatec.fr

FONDATEC is a soil and foundation consulting firm specializing in construction, environmental projects, and expertise, providing quality solutions for long-lasting structures

Construction 🇫🇷 Janneyrias 23 2000
23
Batiserfbatiserf.com

A structure design office in Grenoble since 1977, specializing in innovative solutions for contemporary architecture and heritage building projects

Construction 🇫🇷 Fontaine 21 1977
24
EDMIedmi-elec.fr

The company specializes in studying, installing, and maintaining projects in industrial and tertiary electricity, with a focus on renewable energies like solar, thermal, and biomass

Construction 🇫🇷 Vif 21 2002
25
MARTIN G.martin-g-menuiserie.fr

Specialized in fabricating and installing metal structures and aluminum/steel joinery

Construction 🇫🇷 Pont-Évêque 17 1932
26
MENUISERIE LEGENDRE & LUREAUlegendre-lureau.com

Specialized team delivering interior carpentry and fitting services for large building projects, with a legacy of craftsmanship since the 1940s.

Construction 🇫🇷 Sablons 16 1941
27
OT ENGINEERINGotengineering.fr

Provider of digital and energy solutions across Europe, specialized in underground network construction, civil engineering, fiber optic installation, and infrastructure development

Construction 🇫🇷 Meylan 16 1997
28
Life Ingénierie & Constructionslife-ingenierie.com

Specialized services company in cleanroom design and construction for pharmaceutical, cosmetic, microelectronics, research, and healthcare industries Also offer turnkey solutions

Construction 🇫🇷 Montbonnot-Saint-Martin 15 2018
29
Ribeaud Menuiseriemenuiserie-bois-pvc.com

With over a century of experience, this family-owned company specializes in indoor and outdoor woodworking, including windows, shutters, stairs, PVC installations, and furniture

Construction 🇫🇷 Charavines 14 1889
30
TECODEStecodes.fr

A structural engineering firm in the Rhone Alpes Auvergne region specializing in reinforced concrete structural studies

Construction 🇫🇷 Le Péage-de-Roussillon 14 2016

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.

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