About Us - History
| 1st May 1909 | Founding of the Maschinenfabrik Ernst Thielenhaus for plaiting machines (textile industry) |
| 1936 | Production of the first hard-metal grinding machine |
| 1940 | Production of the first MICROFINISH machine |
| 1955 | Thielenhaus takes over the company Köllmann and expands its business by compressors and gears |
| 1974 | Köllmann subsidiary in the US (KGC – Koellmann Gear Corporation) |
| 1981 | Thielenhaus subsidiary in the US (TMC - Thielenhaus Microfinish Corporation) |
| 1999 | Expansion of the product range by double-disc-grinding machines |
| 2003 | Change of name to Thielenhaus Technologies GmbH |
| 2007 | Thielenhaus subsidiary in China (TMS – Thielenhaus Machinery Shanghai) |
| 2008 | Take over of the flat finishing line of our competitor Supfina |
| 2008 | Expansion of the product range by double-disc lapping machines |
| 1st May 2009 | 100-year-anniversary |