Management

Mehmet Apak

General Manager

Mehmet Apak graduated from the Department of Management Engineering of Rowan University.

After his internship at Türk Demir Döküm Fabrikaları A.Ş. between 1995 and 1999, he started his career as an audit specialist in Koç Holding Audit Group Presidency in 1999.

At Koç Statoil, established with Statoil in 2001, he worked as Chief Financial Officer, besides many responsibilities. In 2004, he continued his career as Assistant Audit Group Coordinator at Koç Holding.  Between 2009 and 2018, he worked as the Audit Group Coordinator at Koç Holding. In January 2019, he was appointed as the General Manager to Zer Merkezi Hizmetleri ve Ticaret A.Ş. Mr. Apak is also a Executive Board Member of Ingage, a Koç Group Company operating in digital marketing.

Apak received the CFE (Association of Certified Fraud Examiners) certificate in 2005 and the CRMA (Certificate in Risk Management Assurance) certificate in 2013. He completed his postgraduate education in the field of "Digital Business" in 2020 and "Innovation and Design Thinking" in 2021, through the Emeritus Institute of Management, a joint program of Columbia Business School Executive Education and MIT Sloan.

Alp Ressamoğlu

Chief Procurement Officer Services and Materials

Alp Ressamoğlu completed his undergraduate education in Metallurgical Engineering at METU.

After starting his career as Production Manager at Arçelik in 1994 and undertaking many other roles, Alp Ressamoğlu joined Hong Kong-based Pacific Access, which provides product development, production, supply chain, and trade management services as Procurement Director. In 2010, Mr. Ressamoğlu continued his career as Deputy General Manager of Logistics at Zer Merkezi Hizmetler ve Ticaret A.Ş., managing the centralization of the logistics procurement processes of Koç Group Companies and developing the company's strategy in logistics procurement. Since 2017, he has been working as the Chief Procurement Officer at Zer.

Ressamoğlu completed the Saïd Business School, University of Oxford Executive Finance Programme and Accounting for Investment and Managerial Decision-Making Programme of LSE 2021.

Ertan Akkan

Chief Procurement Officer Logistics and Supply Chain

Ertan Akkan graduated from the Department of Mathematics Engineering at Istanbul Technical University.

After starting to work as a Procurement Engineer at Ford Otomotiv Sanayi A.Ş. in 1988, Ertan Akkan undertook many other positions in the procurement department of Ford Otomotiv. In 2009, he joined Zer Merkezi Hizmetler ve Ticaret A.Ş. as Deputy General Manager of Materials and Services. He managed the process of merging services and indirect material procurement of the HR departments of Koç Group Companies. Since 2017, Mr. Akkan has been working as the Chief Procurement Officer of Logistics and Supply Chain at Zer.

Gökhan Akça

Chief Procurement Officer Media Services

Gökhan Akça graduated from the Department of Economics of METU.

In 1989, he started his career as a Sales Manager at IBM Türk A.Ş. Then, he undertook the role of Assistant General Manager at Cisco A.Ş., Tepum A.Ş., and KoçSistem Bilgi ve İletişim A.Ş., respectively. In 2004, he was appointed to KoçSistem as the General Manager and took over responsibility for KoçSistem to preserve its leading position in e-transformation. In 2007, Mr. Akça joined Koç Holding as the Public Affairs and Media Relations Coordinator. He then continued his career as the Chief Procurement Officer of Media Services at Zer Merkezi Hizmetler ve Ticaret A.Ş. in 2013.

Akça is also the Deputy President of Reklamverenler Derneği (RVD, Advertisers Association), Board Member of 1907 Fenerbahçe Association, the International Competition Research Council (URAK) Member, and the Energy Efficiency Association Member.

Akça completed certificate program of Columbia Business School,in the field of "Digital Strategies for Business" in 2021.

Özgür Ergun

CFO

After graduating from the Economics (English) Department of Istanbul University, Özgür Ergun finished his MAs at Istanbul Technical University in Business Administration (English) and Sabancı University in IT.

After beginning to work as a Finance Specialist at Ford Otomotiv Sanayi A.Ş. in 1999, Mr. Ergun also undertook many roles such as specialist and manager. Between 2002-2004, he was the 6 Sigma Black Belt Project Manager at Ford Automotive and between 2004-2015 he assumed the position of Internal Audit and Financial Systems Manager. In 2015, he joined Zer Merkezi Hizmetler ve Ticaret A.Ş. as IT & Operations Group Manager. Since 2017, Mr. Ergun has been working as CFO at Zer.

Ergun completed the Harvard Business School Leader Development Program in 2018.

Orçun Güven

Sales and Promena Services Director

After graduating from the Department of Business Informatics (German) at Marmara University, Orçun Güven completed his executive master's degree at Koç University.

In 2007, he started his career as System & Business Development Specialist at Zer Merkezi Hizmetler ve Ticaret A.Ş. and he undertook various roles and responsibilities such as business development, marketing, and sales. Between 2016 and 2018, Mr. Güven was the Head of Sales & Customer Relations of Promena, the strategic procurement software. In 2008, he was appointed as Promena Services Director to manage Promena's sales, marketing, customer relations, business development, and product development activities. Since January 1, 2020, he has been working as the Sales & Promena Services Director after undertaking the further responsibility of managing the sales of Zer's procurement management activities.

Güven completed his postgraduate education in the field of "Digital Business" in 2021, through the Emeritus Institute of Management, a joint program of Columbia Business School Executive Education and MIT Sloan.

Ozan Ünay

Digital Transformation and Information Technologies Director

After finishing his BS and MS education at Boğaziçi University in Computer Engineering, Ozan Ünay also completed his executive MBA at Koç University.

After starting his career as a Software Development Specialist at Aygaz in 2004, Mr. Ünay joined Siemens in 2006. In 2008, he continued his career as Project Management and Application Development Unit Manager at Zer Merkezi Hizmetler ve Ticaret A.Ş. Between 2016 and 2018, he undertook the role of Commercial Systems IT Manager. Since 2018, Ünay has been working as the Digital Transformation & IT Director at Zer.

Ünay completed his postgraduate education in the field of "Digital Business" in 2020 and "Innovation and Design Thinking" in 2021, through the Emeritus Institute of Management, a joint program of Columbia Business School Executive Education and MIT Sloan.

Sanem Bayraklı

Human Resources and Corporate Communications Director

After studying Business Administration at Uludağ University and Rutgers University, Sanem Bayraklı earned her master's degree from Koç University.

After starting her career as a Customer Manager at Panalpina World, a logistics company, in 2004, Ms. Bayraklı joined Zer Merkezi Hizmetler ve Ticaret A.Ş. as Procurement Manager in 2010. After her role in marketing, she was appointed as the Director of HR & Corporate Communications to Zer in 2018. Since July 1, 2020, she has been working as the Director of HR & Corporate Communications.

Bayraklı completed her postgraduate education in the field of "Digital Business" in 2021, through the Emeritus Institute of Management, a joint program of Columbia Business School Executive Education and MIT Sloan.