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About us

The founder of the company Dr. Ing h.c. Giovanni Rodio was with Professor Karl Terzaghi among the first representatives who recognized the significance and importance of geotechnical solutions for the benefit of civil engineering projects. The various companies that have been established in a number of European countries after World War II and in South America and the Far East had, with particular expertise in the solution of geotechnical problems and made a significant contribution in the execution of hydroelectric plants and later in all areas of civil construction. The first and leading company of the group Rodio, Ing Giovanni Rodio & CSpA, Casalmaiocco / Milan has started operations in 1921 and became more like those of the 90-year anniversary. In the past, Rodio group in their company policy has always set the following highlights:

- Development and training of specialized manpower and continuous training of the senior engineering team.
- The development and adjustment of the machine park due to construction site experience.
- Investment in innovative new features while at the same time maintaining the traditional values and expertise.



Ing. Giovanni Rodio found in Milan the Company Ing. Giovanni Rodio & Co. S.p.A.


On 26th November the Swiss RODIO subsidiary under the name of Swissboring AG is founded. This becomes immediately active in the field of drilling and injections, especially for hydroelectric plants and dams. Upon the end of the era of big dams, Swissboring extends its activities in the fields of the anchors, the diaphragm walls and piling.


RODIO Group starts selling its domestic companies, including also the Swissboring AG. As a result, the 20. December of this year the RODIO Geotechnik AG iss founded as a new subsidiary of RODIO in Switzerland. It becomes immediately active in the traditional fields of injection, jet grouting, piling, diaphragm walls and ground freezing, while remaining in close contact with the other companies of the group.


The parent company Ing Giovanni Rodio S.p.A. Milan is forced to announce its insolvency. As a result, the RODIO Geotechnik AG, together with its German sister company RODIO Spezialtiefbau GmbH, are obliged to find a new partner not to succumb.


RODIO Geotechnik AG and RODIO GmbH Spezialtiefbau are sold to the Spanish Group TERRATEST from Madrid. With this new partnership, the future continuation of the two companies can be assured for the next years.


Since 2009 we have received the ISO-Certification

ISO 9001:2008 - Quality Management System Certification

Certification body: SGS Societe Generale De Surveillance SA, Zürich (CH)

Certificate ID: CH09/2038.01
Execution of: soil stabilization, diaphragm walls and bored piles, jet grouting, pipe and jetting roofs, micro piles, anchors, soil and rock grouting, grouting, ground freezing.

Contact Details

RODIO Geotechnik AG

Burgwies 5
CH - 8906 Bonstetten (ZH)

phone: +41 43 500 09 30
fax: +41 43 500 09 31

Rodio Image Gallery Grouting, Jet-Grouting, Micropiles, Pipe umbrella, Anchors, Soil freezing

Terratest Group

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