Facts & figures
| Founded: | 1910 |
| Executive Board: | Peter Fenkl (Chairman), Dr. Klaus Weiß |
| Chairman of the Supervisory Board: | Uwe Ziehl |
| Turnover in 2018: | € 583 million |
| Turnover by business area in 2018: | Ventilation systems (88%) drive systems et al. (12%) |
| Share of foreign turnover in 2018: | 79% |
| No. of employees in 2018: | 4,100 |
| Training ratio: | 8% |
| Sales offices: | 111 |
| Production centres: | 16 |
| Product range: | approx. 30,000 items |