Société Anonyme des Matériaux du Sud-Est (S.A.M.S.E.), a subsidiary of the Vicat cement works in Grenoble, is founded in the Isère département.
Samse becomes an independent company. It is bought by the descendants of Joseph Jehl (Managing Director of Vicat from 1945 to 1952), who include the Joppé family. Bernard Joppé is appointed Chief Executive Officer.
Senior management duo: Patrice Joppé and Paul Bériot.
The first DIY store, La Boîte à Outils, is opened in Isère. The Samse Group diversifies its business, opening up to the general public.
Samse buys the timber specialist ODDOS.
Samse is taken over by a management buyout (MBO). The Dumont Investissement holding company is set up, with the management as majority shareholders.
Samse buys the civil engineering and water supply company Christaud, today specialising in drinking water conveyancing
Samse buys the civil engineering specialist Célestin.
A new-concept DIY store is created: L'Entrepôt du Bricolage.
Samse buys the Haute-Savoie-based timber specialist Mauris.
Samse buys the Rhône-Alpes-based specialist joinery company.
Samse agrees a closer cooperation deal with the Doras group, a construction materials merchant based in Burgundy and Franche-Comté.
Samse agrees a closer cooperation deal with BTP Distribution, a civil engineering and water conveyancing specialist and timber merchant in the Grand Est region.
A new interior decoration company is set up: Des IDées. It is closed down in 2016.
Samse agrees a closer cooperation deal with the Hautes-Alpes-based materials merchant Blanc Matériaux.
Samse agrees a closer cooperation deal with the Isère-based Henry Timber group, France's second biggest timber merchant, and with its subsidiary Les Comptoirs du Bois.
New registered office in Grenoble.
In St Denis-les-Bourgs, Samse and Plattard set up a complete materials distribution centre catering for four specialities: civil engineering, timber, tiling and building materials.
Tiling specialist in the territories of Doras, Samse and, later, M+ Matériaux.
Samse agrees a closer cooperation deal with M+ Matériaux, a construction materials merchant based in the south of France.
Samse agrees a closer cooperation deal with the Drôme-based materials multi-specialist Didier Matériaux
Samse agrees a closer cooperation deal with the Savoie-based tiling specialist Leader Carrelages. It goes on to acquire a majority stake in the company in 2015.
Samse agrees a closer cooperation deal with the Plattard group, a specialist construction and industrial materials merchant whose head office is in Villefranche-sur-Saône.
Samse agrees a closer cooperation deal with renewable-energy specialist Sweetair.
Samse agrees a closer cooperation deal with GamaG, a materials merchant in the Gard département, which has since become a Samse region.
Partnership agreement between La Boîte à Outils and Mr Bricolage.
M+ Matériaux opens France's first Réseau Énergie Habitat branch.
M+ Matériaux steps up its presence in the Aude département by acquiring two Les Établissements Lignières branches.
Christaud acquires the Reims-based company Vaudrey, a water metrology, metering and conveyancing company.
Célestin acquires the civil engineering specialist Codiplast. Today, its sales outlets are part of the Célestin South network.
Samse signs a deal to work more closely with CRH France Distribution, the French subsidiary of the Irish group CRH plc, which is set to become a majority shareholder by 2020.
Samse steps up its presence in the timber industry by buying Armand Bois.
Doras acquires the Aude-based timber specialist Socobois.
Christaud, the Group's oldest brand - specialised in potable water adduction - is 250 years-old and creates the Réseau Français des Spécialistes de l'EAU.
Christaud buys a stake in the capital of Billmat, a company specialising in drinking water conveyancing and drainage (with or without trenches).
Forez Mat joins the Samse Group, thus reinforcing its presence with four additional agencies in both Loire and Haute-Loire regions.
New logo to federate the wood trading specialists : Oddos, Mauris, Armand, Les Comptoirs du Bois.
Creation of a unique commercial sign for both DIY stores; La Boite à Outils and l'Entrepôt du Bricolage.
Creation of the MPPI sign.
Le Comptoir du TP joins the Samse Group.