Heinrich Hermann, Burkhard’s son-in-law, became head of the firm in 1920 and his nephew Heinrich Schmidt took the reins in 1951. The Schmidt-Steingraeber family still runs the company today. In 2002 Steingraeber & Sohne unveiled a new concert grand, in celebration of their 150-year jubille, with the serial number 44000.
Steingraeber & Sohne make custom-made pianos including ecologically freindly instrument. The firm specializes in using only organic materials such as natural paints and glues in the case, and the keys are covered with cattle bone. The makers are also able to build a new instrument into existing casework, if it is no longer feasible to repair an old model.
Dates and serial numbers when the pianos were manufactured
| 1860 | 760 |
| 1870 | 2100 |
| 1890 | 5010 |
| 1900 | 10000 |
| 1910 | 2000 |
| 1920 | 30000 |
| 1930 | 47500 |
| 1940 | 77500 |
| 1950 | 100000 |
| 1960 | 122500 |
| 1970 | 149000 |
| 1980 | 168850 |
| 1990 | 188000 |
| 2001 | 197314 |
