the following are the top manufacturing companies in Turkey :

1. LUNA Electric Electronic Industry and Trade Inc
2. Enko Elektronik Kontrol Sistemleri
3. Mutlusan Plastik Elektrik San. Tic. A.S
4. ATS TRAFO ELEKTRIK LTD. STI.
5. Balikesir Elektromekanik Sanayi Tesisleri A.S. (BEST Transformer)
6. Bicer Pano Metal Isleri ve Elek. San. Tic. A.S.
7. Eksen Teknik Sunger
8. Vtek Elektrik Ith. Ihr. San. Ve Tic. Ltd. Sti.
9. VATAN KABLO METAL END. ve TİC. A.Ş.
10. Sigma Elektrik San. Ve Tic. A.S.
11. Sem Transformator A.S.
12. meksan transformer
13. optima hydraulics
14. DVD Valves produces a wide range of liquid flow management products
15. ege industrial controls is one of leader valve manufacturers in Turkey
16. asteknik makina is a leader valve manufacturer in Turkey
17. burçelik vana is a Turkish Steel Casting, Machinery and Valve manufacturer. Burcelik supplies heavy industrial equipment and components with a large welding and machining division as well as high capacity steel foundry.
18. faf valve company
19. vastas valves
20. Batu Valve is one of the leading Turkish valve manufacturers.
21. Makim Makina Teknolojileri San. Tic. A.S. is one of the leading manufacturers of turnstiles, barriers and access control systems in Turkey.
22. AKTUEL TURNSTILE SYSTEMS is leader physical security system manufacturer in Turkey
23. adeva fire alarm system
24. EDS ELEKTRONIK Destek Sanayi ve Ticaret Ltd. Sti. established in February 1990 to provide production and engineering services to the companies in the field of security electronics
25. Codesec Fire Detection and Control Systems is manufacturing security system devices with the brand name CODE Security Technologies.
26. Prosense Teknoloji Sanayi Ltd. Sti. is founded in 2006 and specialized in gas detection. Prosense manufactures ATEX/IECEx certified gas detection systems
27. Demirer Kablo is among the world’s leading manufacturers in the high and extra high voltage energy cables industry. 
28. NAK KABLO is a new generated manufacturer and exporter company which has been manufacturing cables since 1975
29. Ebion Kablo A.Ş. is a leading cable manufacturer in Turkey
30. Akbas Kablo one of the leading electrical wires, cables manufacturing and exporting company in Turkey .
31. Sartel Kablo is a leading cables and building wires manufacturer in Turkey
32. Doruk Kablo is a foreign trade company supplying all kinds of cables and wires worldwide.
33. Borsan Kablo is a leading cables manufacture in Turkey
34. Dikkan Cable is the low voltage electrical cable production company of Dikkan Corporation which reached its aim to be one of the leading manufacturer and exporter in its field.
35. ÇARKIT Cable Co. Inc , are one of the leading cable manufacturers in Turkey with customers in more than 30 countries.
36. Elki Cable is one of Turkey’s leading companies in its sector and produces cables in accordance with international quality standards.
37. BSB Elevator is one of the largest Elevator manufacturer in Turkey
38. Aksa Power Generation is a leader of generating sets market in the world
39. EMSA is one of the biggest generator company in Turkey.
40. KJ Power Generator manufactures diesel generator sets using the world’s leading engine and alternator brands.
41. Güçbir Generator is a leading and reputable Generator set company .
42. Teksan Generator, desings and produces best fitting diesel generators, natural gas and biogas driven generator sets, mobile generator sets, portable generator sets, cogeneration and trigeneration packs, hybrid power systems for customer needs.
43. Güleryüz Karoseri Otomotiv Sanayi ve Tic. A.Ş (Güleryüz) is a Turkish  modern urban buses manufacturer .
44. Avolux lighting is one of the leading lighting manufacture in turkey .
45. Cemdağ Aydınlatma San. Tic. A.Ş. ( CEMDAG LIGHTING ) is Leading company in indoor , and street lighting luminaries and equipment in Turkey.
46. Gunsan Electric is one of the main manufactures of various types of wall switches, sockets, plugs, grop sockets  and electrical accesories in Turkey.