Avio Design
Avio Design is a Bulgarian aircraft manufacturer based in Kazanlak. The company specializes in the design and manufacture of ultralight trikes and powered parachutes.
The company markets a range of single and two-seat trikes for recreational, flight training, forestry and agricultural aircraft applications, including the provision of ultra-low volume spray equipment.
Aircraft
| Model name | First flight | Number built | Type |
| Avio Delta Thruster | Single seat ultralight trike | ||
| Avio Design Swan | A series of two seat ultralight trikes | ||
| Avio Design ADler | Two seat powered parachute |