OSSA (Ostim Defense and Aviation Cluster) was founded in 2008, under the leadership of OSTİM in Ankara/Türkiye. It comprises over 300 member companies from across Türkiye. The capabilities of our members include R&D/design, software, composite manufacturing, electronics, harnessing, machining, sheet metal forming, surface development, testing/calibration, coating/painting, optical systems, and the production of subsystems for defence platforms, along with many final products. It also focuses on enhancing corporate and quality systems, as well as supporting domestic and national production. Additionally, OSSA develops tailored strategies for SMEs and organises events to secure competitive advantages within Türkiye and internationally.