Groupe Isore

Building envelope contractor for insulation, façades and cladding on occupied and large sites across France

Saint-Berthevin, FranceFounded 1989groupe-isore.fr Website technologies

Highlights

New on EvolcAdded 2026-10-28

About Groupe Isore

Groupe Isore is a building envelope specialist covering external thermal insulation, thin-coat render on insulation, cladding, façade renovation, liquid balcony waterproofing, timber-frame façades and metal work.

Its customers are building owners and developers in the residential, commercial, education and co-ownership segments, with work described on occupied sites, technical and high-rise projects, asbestos-present renovation and multi-site programmes. The website lists reference projects for social housing owner Vilogia in the Lille area.

The group is headquartered in Saint-Berthevin and has agencies in Angers, Île-de-France, Morbihan, Atlantique (Saint-Herblain), Hauts-de-France (Villeneuve-d'Ascq) and Rennes. It was founded in 1989 and is a SAS with 100-249 employees per registry data. It holds an RSE label and LUCIE ESG certification.

Product: Building envelope works: external thermal insulation, thin-coat render, cladding, façade renovation, balcony liquid waterproofing, timber-frame façades and metalwork.

Public tenders won

4 tenders won since 1 Jan 2024 from 4 public buyers in France, worth €59.1M as awarded. From EU award notices (TED) that name Groupe Isore by its registry number.

7 Apr 2026 CHU de Rennes · Reconstruction du Centre Hospitalier de la Roche aux Fées - Site de Janzé · €29.5M notice
24 Apr 2025 UIOSS ANGERS · TRAVAUX DE RÉHABILITATION THERMIQUE DE L'UIOSS D'ANGERS · €12.2M notice
3 Jan 2025 CCI Rouen Métropole · Travaux de construction d'un bâtiment sur le site de l'IFA Marcel Sauvage (76 - Mont-Saint-Aignan) · €17.4M notice
13 Mar 2024 Morbihan Habitat (56) · Accord-cadre pour les travaux d'isolation thermique par l'extÃ©rieur et bardage sur le patrimoine de Morbihan Habitat notice

Open tenders like these →

Jobs at Groupe Isore

No open positions listed right now.

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