| 1908 | Founding of the Becker, Köhler & Co. company by Hermann Becker, Heinrich Köhler and Johann Ferdinand Mohr on 01.11.1908. |
| 1909 | Sale of more than 400 tons of manganese hard steel. |
| 1920 | Johann Ferdinand Mohr leaves the Becker Köhler & Co. company and founds the Ferdinand Mohr GmbH company on 16.11.1920. |
| 1940 | Ferdinand Mohr GmbH opens a branch in Munich. |
| 1945 | The office of Ferdinand Mohr GmbH in Kassel falls victim to bombing raids during the second world war. The headquarters of the company is then relocated close to Hofgeismar. |
| 1948 | Dr. Ruth Köhler (daughter of Heinrich Köhler) enters the Becker, Köhler und Co. company. |
| 1954 | Johann Ferdinand Mohr dies and from this point on, his son Ferdinand Mohr heads Ferdinand Mohr GmbH. |
| 1957 | Hermann Becker and Heinrich Köhler leave the company, Dr. Ruth Köhler takes over the running of Becker, Köhler & Co. The seat of Ferdinand Mohr GmbH is relocated to Kassel-Harleshausen. |
| 1962 | A subsidiary of Ferdinand Mohr GmbH is founded in Austria. |
| 1968 | Founding of the Köhler & Co. company by Dr. Ruth Köhler and Dipl.-Ing. Dietrich Görg on 01.01.1968. Pneumatic sector is added thanks to Dietrich Görg. |
| 1980 | Dipl.-Ing. Klaus Drescher joins the board of Ferdinand Mohr GmbH and runs the company together with his father in law Ferdinand Mohr. |
| 1985 | Ferdinand Mohr passes away. |
| 1990 | Dr. Ruth Köhler leaves the Köhler & Co. company |
| 1993 | Relocation of the company seat of Köhler & Co. to the site in the Kassel-Waldau industrial zone. |
| 2001 | To ensure better market presence, the former competitors Klaus Drescher and Dietrich Görg found on 24.07.2001 the new joint venture Mohr + Köhler GmbH with locations in Kassel-Harleshausen (Sales) and Kassel-Waldau (Workshop and Warehouse). |
| 2013 | At the age of 79, Dietrich Görg withdraws from active participation in the business. |
| 2016 | Dipl.-Ing. Ralph Roth acquires the shares of Klaus Drescher and Dietrich Görg and takes over the management of Mohr + Köhler GmbH. The company merges at the Kassel-Waldau location. |
| 2017 | Acquisition of VTA in St. Ingbert |
