Say Yenilenebilir Enerji Ekipmanlari Sanayi ve Ticaret AS engages in the production of interior and exterior parts of wind turbine towers, parts of wind turbine generators, and wind turbine parts transportation equipment. It also involves in the manufacture of illuminated and non-illuminated signs, billboards, totems and boards, hair signs, sales units, fair stands, screen printing, posters, and cloth banners. The company was founded by Erkan Güldogan, Ercan Güldogan, Mahmut Güldogan, Münir Güldogan, and Emre Güldogan Uzar in 1989 and is headquartered in Izmir, Turkey.