1955
Conserves Estavayer SA
Conserves Estavayer SA (CESA) founded by Gottlieb Duttweiler.
1956
Operations start at the CESA company for canning peas, beans, gherkins, spinach and conserves.
1960
Manufacture of dairy products begins at Estavayer-le-Lac.
1964
Mifroma SA
Foundation of Mifroma SA in Ursy
1968
Tetra Brik for milk
CESA is the first company in Switzerland to market Tetra Brik packaging for milk.
1968
Moudon cheese factory
Moudon cheese factory taken over. Operations at the site ceased in April 2010.
1970
Freshly grated fondue mix
Launch of grated fondue mix, a first for the mass retail market
1998
Estavayer Lait SA
CESA changes its name, becoming Estavayer Lait SA (ELSA).
1999
ELSA and Mifroma merge
2003
Industrial dairy
ELSA becomes the industrial dairy of the Migros Community.
2004
Fromagerie de Moudon
Takeover of the Fromagerie de Moudon. Activity on this site ceased in April 2010.
2010
Schwyzer Milchhuus
Start of the partnership between ELSA-MIFROMA and Schwyzer Milchuus.
2016
Idhéa
Estavayer Lait SA acquires a stake in Idhéa, an Alsatian company specialising in the production and sale of sauces and spices
2017
Increase of ELSA-Mifroma’s stake in Schwyzer Milchhuss from 34 to 60%.
2019
Acquisition SoFine Foods
Acquisition of the Dutch vegan food company SoFine
Acquisition Schwyzer Milchhuus
Acquisition of 100% of the shares in Schwyzer Milchhuss
Diemtigtal site
Opening of the Diemtigtal site (production of ESL milk for M-Aare)
2020
Production of pea-based products
Start of production of pea-based products (world first for Vegourt)
2021
Changeover to IP-Suisse milk
Changeover to IP-Suisse for the supply of SEG II milk
2022
Aaremilch AG and Simmental Switzerland AG
ELSA-Mifroma Group acquires a 50% share in aaremilch AG and 100% of the shares in Simmental Switzerland AG (as of 01.07.2022)
2023
Fusion ELSA et Mifroma
The two companies of the ELSA-Mifroma Group and Mifroma merge and form the Elsa Group with their respective locations in Estavayer-le-Lac (formerly ELSA) and Ursy (formerly Mifroma)
2025
Fusion Schwyzer Milchhuus AG, Dörig Käsehandel and et Simmental Switzerland AG
The three companies legally merge to form Elsa Group SA and adopt the names Elsa Group Wittenbach I, Wittenbach II, Oey, Seewen, Disentis and Urnäsch. Elsa Group now has 8 sites in Switzerland.