ROKETSAN - Roket Sanayii ve Ticaret A.Ş.
SYS manufactures many components for Roketsan
TAI - Turkish Aerospace Industry
SYS is manufacturing aviation components for TAI
MCIC - Mechanical and Chemical Industry Corporation
SYS also manufactures Semi-Automatic Weapons under the name of MCIC.
SYS - Aselsan cooperation started in 2010 base on production
SYS and Tubitak SAGE cooporation has been started on various of defense programs since 2013.