While not exhaustive, here are potential firms to start with (verify specifics via further research):
Arçelik (Home appliances, ignitors for stoves/ovens)
Beko (Consumer electronics and components)
Vestel (Electronics and industrial components)
Nur Elektronik (HVAC ignition systems)
İstanbul Elektronik (Industrial ignition devices)
Schneider Electric Turkey (Emergency lighting systems)
Favora Lighting (LED and emergency lighting solutions)
Viko by Legrand (Electrical equipment, safety lighting)
Aydınlatma Group (Lighting retrofits and kits)
Elmak Group (Emergency lighting components)