Overview of the five largest construction companies in Switzerland

Of the 600,000 companies in Switzerland, around 50,000 are in the construction sector. This represents about 8% of Swiss companies and is one of the most important sectors of the Swiss economy. The 5 largest construction companies in Switzerland alone bring in 9.10 billion euros a year. In this article, we will find out who these giants of the Swiss construction industry are and what makes them special.

1. Implenia

The largest construction company in Switzerland is Implenia AG. It is involved in construction and development. Implenia is present throughout Switzerland as well as in Austria, Germany, France, Sweden and Norway.

Although Implenia AG was only founded in 2005 through the merger of Batigroup and Zschokke AG, the company boasts more than 150 years of experience in the construction industry. In the field of infrastructure, Implenia concentrates on major projects such as roads, bridges and special foundations. However, Implenia AG also fulfills many smaller orders, such as the construction of single-family homes. The company also provides services and consultancy in construction logistics and planning.

2. Marti Group

The Marti Group, active since 1929, is a conglomerate of Swiss construction companies and is one of the nation's leading contractors for major civil engineering and special works projects.

With sites in eleven countries on three continents, the Marti Group has long been an internationally active construction company. Marti's greatest successes have been in the construction of tunnels, waterproofing, shafts and other special foundations.

3. Frutiger

Since its foundation in 1869, Frutiger has been a full-service provider for all kinds of construction projects.

The Frutiger Group, which also includes 22 subsidiaries, is particularly active in tunneling, commercial and residential construction. Thanks to its extensive resources, the Frutiger Group often undertakes large-scale projects such as bridges and viaducts.


Founded in 1917 as a road construction company, Walo Bertschinger AG quickly developed into one of the largest civil engineering companies in Europe. Today, this fourth-generation family-owned company is characterized by a commitment to sustainability, tradition and consistency.

Despite its international presence in the United States, Walo AG still considers itself a Swiss company and the majority of its orders are completed in Switzerland each year. As a general contractor, Walo today works in all areas of the construction industry, from road construction and paving to concrete reconstruction, hydraulic engineering, building erection and much more.

5. Halter Bauunternehmung

Halter Bauunternehmung AG is one of the largest construction companies in Switzerland and one of the most reputable real estate service providers. The company has offices in Schlieren, Bern, Basel, Lucerne, St. Gallen and Lausanne. Halter Bauunternehmung AG is thus one of the few major construction companies with such a strong presence in Eastern Switzerland and the French-speaking part of the country.

Halter Bauunternehmung AG was founded in 1918, shortly after the end of the First World War. Even then, the company's core business was the construction of single-family houses, and this specialization continues to pay dividends today.



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