# 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).

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.

🇫🇷 Isère · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [ALTRAD PREZIOSO](https://www.tamtam.ai/c/altrad-prezioso) (altradprezioso.com)<br>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 | [SBI](https://www.tamtam.ai/c/sbi) (sbisas.fr)<br>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 | [SESA](https://www.tamtam.ai/c/sesa) (serfim.com)<br>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 |  |
| 4 | [Hydrokarst](https://www.tamtam.ai/c/hydrokarst) (hydrokarst.fr)<br>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 ACAF](https://www.tamtam.ai/c/groupe-acaf) (acaf.fr)<br>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 SCOP](https://www.tamtam.ai/c/cabestan-sa-scop) (cabestan.fr)<br>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 THERMIQUE](https://www.tamtam.ai/c/societe-alpine-d-isolation-thermique) (nuvia.com)<br>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 | [CARATELLI](https://www.tamtam.ai/c/caratelli) (caratelli.fr)<br>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 | [Eurobéton](https://www.tamtam.ai/c/eurobeton) (eurobeton.fr)<br>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](https://www.tamtam.ai/c/manang)<br>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 TECHNOLOGIES](https://www.tamtam.ai/c/idec-hautes-technologies) (idec-hautestechnologies.com)<br>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 Group](https://www.tamtam.ai/c/rosin-group) (rosin.group)<br>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 Compte](https://www.tamtam.ai/c/dinac-quand-la-finition-compte) (dinac.fr)<br>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 | [SDE](https://www.tamtam.ai/c/sde-grenoble) (groupeeos.com)<br>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 Dauphiné](https://www.tamtam.ai/c/serpollet-dauphine) (serfim.com)<br>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 |  |
| 16 | [SINEQUANON'​](https://www.tamtam.ai/c/sinequanon) (sinequanon4.fr)<br>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 CHAUDRONNERIE](https://www.tamtam.ai/c/ravanat-chaudronnerie) (ravanat.fr)<br>Specializes in precision boilermaking, pressure equipment, and piping using stainless steel, aluminum, nickel alloys, titanium for various industries. | Construction | 🇫🇷 Saint-Jean-de-Moirans | 32 |  |
| 18 | [RVI Bureau d'Etudes Fluides](https://www.tamtam.ai/c/rvi-bureau-d-etudes-fluides) (rvi-be-fluides.fr)<br>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'Inox](https://www.tamtam.ai/c/fluid-inox) (fluid-inox.fr)<br>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 Echirolles](https://www.tamtam.ai/c/actemium-echirolles) (vinci-energies.com)<br>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 |  |
| 21 | [ECO CONSTRUCTION](https://www.tamtam.ai/c/eco-construction) (ecoconstruction-france.fr)<br>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 & Fondations](https://www.tamtam.ai/c/fondatec-geotechnique-etude-de-sols-and-fondations) (fondatec.fr)<br>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 | [Batiserf](https://www.tamtam.ai/c/batiserf) (batiserf.com)<br>A structure design office in Grenoble since 1977, specializing in innovative solutions for contemporary architecture and heritage building projects | Construction | 🇫🇷 Fontaine | 21 | 1977 |
| 24 | [EDMI](https://www.tamtam.ai/c/edmi) (edmi-elec.fr)<br>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.](https://www.tamtam.ai/c/martin-g) (martin-g-menuiserie.fr)<br>Specialized in fabricating and installing metal structures and aluminum/steel joinery | Construction | 🇫🇷 Pont-Évêque | 17 | 1932 |
| 26 | [MENUISERIE LEGENDRE & LUREAU](https://www.tamtam.ai/c/menuiserie-legendre-and-lureau) (legendre-lureau.com)<br>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 ENGINEERING](https://www.tamtam.ai/c/ot-engineering) (otengineering.fr)<br>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 & Constructions](https://www.tamtam.ai/c/life-ingenierie-and-constructions) (life-ingenierie.com)<br>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 Menuiserie](https://www.tamtam.ai/c/ribeaud-menuiserie) (menuiserie-bois-pvc.com)<br>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 | [TECODES](https://www.tamtam.ai/c/tecodes) (tecodes.fr)<br>A structural engineering firm in the Rhone Alpes Auvergne region specializing in reinforced concrete structural studies | Construction | 🇫🇷 Le Péage-de-Roussillon | 14 | 2016 |

## 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.

## More company lists in the Isère department

- [The largest companies in the Isère department](https://www.tamtam.ai/l/largest-companies-isere) (1,457)
- [Companies with in-house R&D in the Isère department](https://www.tamtam.ai/l/r-and-d-companies-isere) (304)
- [Manufacturers in the Isère department](https://www.tamtam.ai/l/manufacturers-isere) (178)
- [Multinational companies in the Isère department](https://www.tamtam.ai/l/multinational-companies-isere) (174)
- [Hardware manufacturers in the Isère department](https://www.tamtam.ai/l/hardware-companies-isere) (143)
- [Retail chains in the Isère department](https://www.tamtam.ai/l/retail-chains-isere) (100)
- [Software Development companies in the Isère department](https://www.tamtam.ai/l/software-development-companies-isere) (90)
- [Professional services firms in the Isère department](https://www.tamtam.ai/l/professional-services-firms-isere) (87)
- [Public sector organisations in the Isère department](https://www.tamtam.ai/l/public-sector-organisations-isere) (80)
- [Distributors and wholesalers in the Isère department](https://www.tamtam.ai/l/distributors-and-wholesalers-isere) (78)
- [IT services companies in the Isère department](https://www.tamtam.ai/l/it-services-companies-isere) (75)
- [SaaS companies in the Isère department](https://www.tamtam.ai/l/saas-companies-isere) (72)
- [Electronics and semiconductor companies in the Isère department](https://www.tamtam.ai/l/electronics-companies-isere) (70)
- [Contract manufacturers in the Isère department](https://www.tamtam.ai/l/contract-manufacturers-isere) (68)
- [IT Services and IT Consulting companies in the Isère department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-isere) (68)
- [Family-owned companies in the Isère department](https://www.tamtam.ai/l/family-owned-companies-isere) (61)
- [Industrial Machinery Manufacturing companies in the Isère department](https://www.tamtam.ai/l/industrial-machinery-manufacturing-companies-isere) (58)
- [Consulting firms in the Isère department](https://www.tamtam.ai/l/consulting-firms-isere) (57)
- [Pharmaceutical companies in the Isère department](https://www.tamtam.ai/l/pharmaceutical-companies-isere) (47)
- [Education providers in the Isère department](https://www.tamtam.ai/l/education-companies-isere) (46)
- [Medical device companies in the Isère department](https://www.tamtam.ai/l/medical-device-companies-isere) (43)
- [Critical infrastructure operators in the Isère department](https://www.tamtam.ai/l/critical-infrastructure-operators-isere) (41)
- [Energy companies in the Isère department](https://www.tamtam.ai/l/energy-companies-isere) (41)
- [Chemical companies in the Isère department](https://www.tamtam.ai/l/chemical-companies-isere) (40)

## The same list elsewhere in France

- [Construction companies in France](https://www.tamtam.ai/l/construction-companies-france) (2,209)
- [Construction companies in Île-de-France](https://www.tamtam.ai/l/construction-companies-ile-de-france) (556)
- [Construction companies in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/construction-companies-auvergne-rhone-alpes) (372)
- [Construction companies in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/construction-companies-provence-alpes-cote-dazur) (202)
- [Construction companies in Grand Est](https://www.tamtam.ai/l/construction-companies-grand-est) (196)
- [Construction companies in Nouvelle-Aquitaine](https://www.tamtam.ai/l/construction-companies-nouvelle-aquitaine) (177)
- [Construction companies in Pays de la Loire](https://www.tamtam.ai/l/construction-companies-pays-de-la-loire) (141)
- [Construction companies in the Rhône department](https://www.tamtam.ai/l/construction-companies-rhone) (140)
- [Construction companies in Occitanie](https://www.tamtam.ai/l/construction-companies-occitanie) (133)
- [Construction companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/construction-companies-hauts-de-seine) (113)
- [Construction companies in Hauts-de-France](https://www.tamtam.ai/l/construction-companies-hauts-de-france) (108)
- [Construction companies in Brittany](https://www.tamtam.ai/l/construction-companies-brittany) (92)
- [Construction companies in Normandy](https://www.tamtam.ai/l/construction-companies-normandy) (92)
- [Construction companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/construction-companies-bouches-du-rhone) (91)
- [Construction companies in the Gironde department](https://www.tamtam.ai/l/construction-companies-gironde) (67)
- [Construction companies in the Val-de-Marne department](https://www.tamtam.ai/l/construction-companies-val-de-marne) (63)
- [Construction companies in the Loire-Atlantique department](https://www.tamtam.ai/l/construction-companies-loire-atlantique) (57)
- [Construction companies in the Seine-et-Marne department](https://www.tamtam.ai/l/construction-companies-seine-et-marne) (57)
- [Construction companies in the Essonne department](https://www.tamtam.ai/l/construction-companies-essonne) (56)
- [Construction companies in the Haute-Garonne department](https://www.tamtam.ai/l/construction-companies-haute-garonne) (51)
- [Construction companies in Bourgogne-Franche-Comté](https://www.tamtam.ai/l/construction-companies-bourgogne-franche-comte) (50)
- [Construction companies in the Yvelines department](https://www.tamtam.ai/l/construction-companies-yvelines) (50)
- [Construction companies in the Bas-Rhin department](https://www.tamtam.ai/l/construction-companies-bas-rhin) (49)
- [Construction companies in Paris](https://www.tamtam.ai/l/construction-companies-paris) (112)

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Source: https://www.tamtam.ai/l/construction-companies-isere