1922 | Start-up of the company Brockhaus & Co. GmbH with Fred Cetto as chief engineer Major focus: Manufacturing of immersed welding electrodes, sale of welding machines and repair welding |
1923 | Renaming to “Elektrische Schweißbetriebe Cetto und Gärtner” |
1936 | Heinrich Dehnhardt took over the company from Fred Cetto and managed the business |
1946 | Max Dehnhardt enters the parental business and becomes the sole responsible for the fortune of CETTO for the next 45 years. The product mix was extended by the “Riecetto process” – a process suitable for non-weldable cast material |
1961 | Relocation to Ratingen on the Dechenstraße 15 |
1981 | Dr. Stefan Dehnhardt starts the activity as engineer/professional welding engineer in the family business of his father and takes over the management of the company in the course of time. |
1992 | Setting up of the measuring technology department and marketing of radiation detectors in the steel and recycling industry |
2007 | Establishment of the division „Lagerrekonditionierung“ – roll bearing reclamation – in partnership with bearing manufacturer TIMKEN |
2012 | Barbara Rübbelke-Dehnhardt starts to manage the business of her deceased husband Dr. Stefan Dehnhardt |
2017 | Lukas Rübbelke joins the board. |
2022 | Cetto AG is celebrating its 100th anniversary. |
2024 | After 12 years at the helm of the company, Barbara Rübbelke-Dehnhardt is handing over her position as CEO to her son Lukas Rübbelke. Cetto’s operations manager Daniel Keuck is joining the board. Currently about 45 employees are working in the production and administration of Cetto AG. |