| 3D04AD | D-EAAF | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1996 |
| 3D068F | D-EAST | Diamond Aircraft Katana DV20 | Private | Germany | |
| 3D0822 | D-EBIG | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1995 |
| 3D0A65 | D-ECEN | Diamond Aircraft Katana DV20 | Private | Germany | 1994 |
| 3D0CA0 | D-EDAM | Diamond Aircraft Katana DA20-A1 | Private | Germany | |
| 3D0F89 | D-EEDD | Diamond Aircraft Katana DA20-A1 | Private | Germany | |
| 3D1329 | D-EFMV | Diamond Aircraft Katana DV20 | Private | Germany | |
| 3D1607 | D-EGPB | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1995 |
| 3D184E | D-EHLM | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1996 |
| 3D1897 | D-EHOH | Diamond Aircraft Katana DV20 | Private | Germany | 1994 |
| 3D1F60 | D-EKDC | Diamond Aircraft Katana DA20-C1 | Private | Germany | 2002 |
| 3D2222 | D-ELEG | Diamond Aircraft Katana DA20-A1 | Private | Germany | |
| 3D2332 | D-ELOS | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1996 |
| 3D24D3 | D-EMET | Diamond Aircraft Katana DV20 | Private | Germany | 1995 |
| 3D24E1 | D-EMFH | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1997 |
| 3D24FE | D-EMGK | Diamond Aircraft Katana DV20 | Private | Germany | |
| 3D25F6 | D-EMPY | Diamond Aircraft Katana DA20-A1 | Private | Germany | |
| 3D27D2 | D-ENIG | Diamond Aircraft Katana DA20 | Private | Germany | 1998 |
| 3D2A10 | D-EOEI | Diamond Aircraft Katana DV20 | Private | Germany | |
| 3D2AD8 | D-EOMA | Diamond Aircraft Katana DA20-A1 | Aerotours GmbH | Germany | 1997 |
| 3D2C79 | D-EPCB | Diamond Aircraft Katana DA20-C1 | Private | Germany | 2001 |
| 3D2C92 | D-EPDA | Diamond Aircraft Katana DA20 | Private | Germany | 1997 |
| 3D2D8F | D-EPMT | Diamond Aircraft Katana DV20 | Private | Germany | 1995 |
| 3D31CC | D-ERCM | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1997 |
| 3D31D3 | D-ERCT | Diamond Aircraft Katana DA20-C1 | Private | Germany | 2000 |
| 3D3215 | D-ERFH | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1997 |
| 3D32AE | D-ERLE | Diamond Aircraft Katana DA20-A1 | Private | Germany | |
| 3D3385 | D-ERTL | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1998 |
| 3D3446 | D-ESAW | Diamond Aircraft Katana DA20 | Private | Germany | 1997 |
| 3D3473 | D-ESCP | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1996 |
| 3D34BF | D-ESFN | Diamond Aircraft Katana DA20-C1 | Private | Germany | 2004 |
| 3D34C8 | D-ESFW | Diamond Aircraft Katana DV20 | Private | Germany | 1994 |
| 3D34F2 | D-ESHM | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1996 |
| 3D37B1 | D-ETIN | Diamond Aircraft Katana DV20 | Private | Germany | 1995 |
| 3D37FC | D-ETLK | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1997 |
| 3D3921 | D-ETWR | Diamond Aircraft Katana DA20-A1 | Private | Germany | |
| 3D39C6 | D-EUDA | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1997 |
| 3D3AA1 | D-EULL | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1996 |
| 3D3ABC | D-EUMM | Diamond Aircraft Katana DA20 | Private | Germany | 1997 |
| 3D3B79 | D-EUTT | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1997 |
| 3D3DB8 | D-EVPW | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1996 |
| 3D3ECE | D-EWAO | Diamond Aircraft Katana DV20 | Private | Germany | 1994 |
| 3D3F6E | D-EWGS | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1996 |
| 3D4101 | D-EWWF | Diamond Aircraft Katana DV20 | Private | Germany | 1994 |
| 3D41B2 | D-EXDA | Diamond Aircraft Katana DA20-A1 | Private | Germany | 1997 |
| 3D475A | D-EZGS | Diamond Aircraft Katana DV20 | Private | Germany | |
| 3D47BF | D-EZKP | Diamond Aircraft Katana DV20 | Private | Germany | 2011 |
| 3D47DC | D-EZLS | Diamond Aircraft Katana DV20 | Private | Germany | |
| 393601 | F-GNQB | Diamond Aircraft Katana DA20-A1 100 | Private | France | 1996 |
| 3954F2 | F-GVHS | Diamond Aircraft Katana DA20-A1 | Private | France | 1997 |
| 398C02 | F-HDAC | Diamond Aircraft Katana DA20-C1 | Private | France | 2006 |
| 39940D | F-HFAN | Diamond Aircraft Katana DV20 | Private | France | 2011 |
| 39B884 | F-HOEE | Diamond Aircraft Katana DA20-C1 | Private | France | 2005 |
| 4B2FC7 | HB-SCL | Diamond Aircraft Katana DV20 | Private | Switzerland | 1994 |
| 4B2FC9 | HB-SCN | Diamond Aircraft Katana DV20 | Private | Switzerland | 1995 |
| 4B2FCB | HB-SCP | Diamond Aircraft Katana DV20 | Private | Switzerland | 1994 |
| 4B2FCE | HB-SCS | Diamond Aircraft Katana DV20 | Private | Switzerland | 1995 |
| 4B2FCF | HB-SCT | Diamond Aircraft Katana DV20 | Private | Switzerland | 1995 |
| 4B2FD0 | HB-SCU | Diamond Aircraft Katana DV20 | Private | Switzerland | 1996 |
| 4B2FD5 | HB-SCZ | Diamond Aircraft Katana DA20-A1 | Private | Switzerland | 1997 |
| 4B2FDE | HB-SDI | Diamond Aircraft Katana DV20 | Private | Switzerland | 1994 |
| 4B3029 | HB-SGF | Diamond Aircraft Katana DV20 | Fliegerschule Birrfeld | Switzerland | 1994 |
| 4B302A | HB-SGG | Diamond Aircraft Katana DA20-C1 | Private | Switzerland | 2009 |
| 4B302B | HB-SGH | Diamond Aircraft Katana DA20-C1 | Private | Switzerland | 2011 |
| 4B302C | HB-SGI | Diamond Aircraft Katana DA20-C1 | Private | Switzerland | 2011 |
| 4B302E | HB-SGK | Diamond Aircraft Katana DA20-C1 | Private | Switzerland | 2003 |
| 4B302F | HB-SGL | Diamond Aircraft Katana DA20-C1 | Private | Switzerland | 2005 |
| 4B3030 | HB-SGM | Diamond Aircraft Katana DV20 | Private | Switzerland | |
| 3007BD | I-GEPS | Diamond Aircraft Katana DV20 | Private | Italy | |
| 30029A | I-PVLH | Diamond Aircraft Katana DA20-C1 | Private | Italy | 2006 |
| 440299 | OE-AAI | Diamond Aircraft Katana DA20 | Private | Austria | |
| 4400A4 | OE-AAL | Diamond Aircraft Katana DA20 | Private | Austria | 1996 |
| 4402D0 | OE-ACG | Diamond Aircraft Katana DV20 | Private | Austria | 1994 |
| 4408DC | OE-AEE | Diamond Aircraft Katana DA20-E | Private | Austria | |
| 4404E3 | OE-AHM | Diamond Aircraft Katana DV20 | Private | Austria | 1994 |
| 440461 | OE-ANZ | Diamond Aircraft Katana DA20-A1 | Private | Austria | 1995 |
| 44044A | OE-CEM | Diamond Aircraft Katana DV20 | Private | Austria | |
| 440635 | OE-CHB | Diamond Aircraft Katana DA20-A1 | Private | Austria | 1997 |
| 440228 | OE-CIC | Diamond Aircraft Katana DV20 | Private | Austria | 1994 |
| 4404EC | OE-COO | Diamond Aircraft Katana DV20 | Flugsportverein Stockerau | Austria | 1994 |
| 463A30 | OH-WAY | Diamond Aircraft Katana DA20-C1 | Private | Finland | |
| 505D51 | OM-KLS | Diamond Aircraft Katana DA20-A1 | Private | Slovakia | 1997 |
| 449E89 | OO-GTI | Diamond Aircraft Katana DA20-C1 | Private | Belgium | 2005 |
| 44CC21 | OO-SAA | Diamond Aircraft Katana DA20-C1 | Sabena Aeroclub | Belgium | 2002 |
| 4849A0 | PH-ACX | Diamond Aircraft Katana DA20-A1 | Private | Netherlands | |