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Sedat ARI graduated from Eskişehir Osmangazi University Faculty of Engineering and Architecture in 2002 as a Metallurgical Engineer and completed his Master's degree in Metallurgical Engineering at the same university in 2004, International Welding Engineering education at METU in 2008 and Executive MBA education at Bilkent University in 2017.

Sedat Arı started his career as a production chief in the foundry sector. After working as a Technical Sales Specialist at Eczacıbaşı Lincoln Electric Askaynak in 2008, Sedat Arı joined HİSARLAR Makina A.Ş. in 2009 and worked at Hisarlar Makina A.Ş. respectively; He worked as a Welding Engineer between 2009-2010, as Quality and Method Team Leader between 2010-2011, as Production Director between 2011-2013, as Factory Director between 2013-2015, as Business Units Director between 2015-2017, and as Production Operations Director between 2017-2020. He left Hisarlar Makina A.Ş. in 2020 and worked as the General Manager at Polat Makina within Polat Group Holding between 2020 and 2021.

Sedat Arı, who worked in various positions at Hisarlar Makina A.Ş. between 2009-2020, was appointed as CEO/General Manager of Hisarlar Makina A.Ş. as of October 2021. Sedat Arı has a welding engineering certificate and speaks English. He is married and has 2 children.
He graduated from Bursa Uludağ University, Faculty of Economics and Administrative Sciences, Department of Business Administration in 2003. In 2009, he successfully completed TÜRMOB trainings and exams and earned the title of Certified Public Accountant.

Yasin SAYAR started his business life in Kütahya Porselen A.Ş. It started in the Financial Affairs Unit. Between 2005-2014 Kütahya Porselen A.Ş. He held various positions in the Financial Affairs Department. In 2014, Hisarlar Makina A.Ş. He served as the Senior Manager in the Financial Affairs Unit until 2021. Yasin SAYAR started his duty as Financial Affairs Director / CFO at Hisarlar Makina A.Ş as of September 2021 and still continues his duty.
Şebnem Nihan Tülek, who graduated from Osmangazi University Comparative Literature Department in 2007, completed her Master's Degree in Marketing Department of Social Sciences Institute of Osmangazi University in 2018.

Şebnem Nihan Tülek started her career at Toprak Demirdöküm A.Ş in 2007 as a Customer Representative and left her position as Planning Chief in 2013. She continued to work as Component Customer Representative, OEM Customer Manager, OEM Sales Manager, MF Sales and Marketing Manager at Hisarlar Makina A.Ş, where she started working on 03.06.2013, and as of 20.01.2023 she continues to work as Sales and Marketing Director.
Ersoy AKSAK, who graduated from Eskişehir Osmangazi University Industrial Engineering Department in 2007, completed the Bilkent University Turquality MBA program in 2016.

Ersoy AKSAK, who has been working in different positions in the Planning and Purchasing departments of Hisarlar Makine since 2007, was appointed to Hisarlar Makina A.Ş as the Purchasing Director on 26.11.2021.
Serdar KAREL, who graduated from Osmangazi University Department of Mechanical Engineering in 2000, joined the Foreign Language Program at Middle East Technical University in addition to his undergraduate education in 2001 and successfully completed his education by receiving a certificate after 9 months.

Serdar KAREL started his career in business life as a Project Engineer at Attila Doğan İnşaat ve Tesisat A.Ş. in 2001, as Product Development Chief at Konveyör Beyaz Eşya ve Otomotiv Yan Sanayi A.Ş in 2002, as a Project Manager at Coşkunöz Savunma ve Havacılık Sanayi A.Ş in 2010 and finally as Design and Project Development Director as of 24.09.2021 after working in various positions at Hisarlar Makine Sanayi ve Ticaret A.Ş.
Ahmet Göksel GÜVEN, who graduated from Middle East Technical University Mechanical Engineering Department in 1993, started his working life in the same year.

Ahmet Göksel GÜVEN respectively; He worked as a Project Engineer in the Project and Engineering Department of GÖKER OTO YEDEK PARÇA between 1993-1994 and MAPSAN A.Ş. After completing his Military Duty in 1997, he worked as a Quality Engineer and Quality Chief in TEMSA GLOBAL A.Ş. between 1997 and 2010 in Istanbul, Adana and Egypt Locations. Between 2010-2012, Quality Manager at SANKO Makina A.Ş. KARSAN A.S. After continuing his career as a Quality Manager at AKIA Automotive and Quality Manager at AKIA Automotive in 2017, he started to work as a Quality Director at HİSARLAR Makina in 2017 and still continues to work.
Rüstem ÇAMLI, who graduated from Eskişehir Osmangazi University Metallurgical and Materials Engineering Department in 2008 with a first degree, started his career as a Quality Engineer at Akalın Heat Treatment Company in Ankara / Ostim after completing his military service in the same year.

Between 2009 and 2013, he worked as Quality Supervisor and Operations Supervisor at Bilecik Demir-Çelik company, which is still operating in Bilecik/Bozüyük, and worked as Production Manager in the last 2 years.

Rüstem Çamlı, who started his career at Hisarlar Makina in 2013, has undertaken different responsibilities in various departments until today. During this period, he worked as Quality Manager, Tavşanlı Factory Area Manager, Production Manager, and worked on Operations Management, Process Optimization, and Lean Practices. He has a 6 sigma green belt. As of 2023, he has been working as the Factory Manager.
Cankat ÇIKIN, who graduated from Dokuz Eylul University, Faculty of Engineering, Department of Industrial Engineering, completed his Master's degree in Audit and Risk Management at Ankara Social Sciences University in 2020.

Cankat ÇIKIN started his career at Eficas Yazılım A.Ş. in 2013. He worked as Quality Engineer at TRIGO Global Quality Solutions, Project Manager at Abalıoğlu Yem Soya A.Ş., Business Development Manager at Tarım Kredi Holding A.Ş., and finally Strategy Management Engineer at Turkish Aerospace Industry TAI. Cankat ÇIKIN started his duty as Information Technologies and Internal Audit Manager at Hisarlar Makina A.Ş as of 27 July 2021 and still continues his duty.
Canan Canbaz graduated from Çanakkale Onsekiz Mart University, Faculty of Economics and Administrative Sciences, Department of Labor Economics and Industrial Relations in 2004.

Canan Canbaz started her career in 2006 at Toprak Demirdöküm A.Ş as Human Resources Chief. Between 2013 and 2022, she worked in Konveyör FMCG and Automotive Side Industry Trade Inc as a Human Resources Officer. She has been working as the Human Resources Manager in our company as of 2023.