Expert in strategic procurement and sourcing management

AKPLAS

Allianz

Promena's e-procurement module allows us to manage our procurement processes via a single hub, create a more effective competitive environment, and boost productivity. We would like to thank the Promena Team for implementing the module and their subsequent support...

Arçelik

AYGAZ

Borusan

Buga Otis

Our collaboration with Zer includes many items of our indirect expenses. These are primarily services such as road transportation, Far East transportation, and food. Moreover, ZerOnline also provides us with substantial support and advantages in our field activities across Turkey. We believe that professional management of procurement processes is significant and that establishing a trustworthy, win-win alliance will contribute to companies. We are also taking our satisfaction-based collaboration with Zer to a global scale to go beyond the national market and support Otis' international activities. We consider this among the first steps of Turkey's overseas expansion not only in terms of goods and workforce but also in services.

Cresta Hotels

DeFacto

Divan

ebebek

Ekol | Logistics 4.0

Endel Group of Companies

At Endel Group of Companies, we have been leveraging Zer's services and support in our procurement and supply processes for over a decade. We would like to thank Zer for providing support, devotion, and sensitivity to our Group with their professional teams and solution-oriented approach and wish for the continuity of our partnership.

ENKA

evidea

With Promena, we achieved efficiency and transparency in all our procurement processes. We also gained considerable savings with e-tender. Above all, suppliers who make biddings now trust more in the equitability of our procurement processes.

FORD OTOSAN

Franke Kitchen and Bathroom Systems

At Franke Turkey, we partner with Zer in the supply processes of packages, separators, and lids to ensure our products' safe and hassle-free delivery to end-users. In our procurement activities, we prioritize providing the optimum quality and price. Accordingly, we are extremely satisfied with Zer's support and following performance, aiming to fortify our joint efforts in the future.

KKB

We prioritize making our procurement activities transparent and equally accessible to our suppliers with optimum quality and price. Accordingly, leveraging e-tender processes in our decision-making is highly significant for us.

MARS LOGISTICS

OPET

Otokoç

Pürsu

Sarten Ambalaj

Besides operating most swiftly and safely with its professional team, Promena also provides us with a secure environment at each stage of the project with its friendly and solution-oriented perspective. Its user-friendly menu enables Promena to be an excellent solution partner for us and our suppliers. Since the first day of our collaboration, Promena has been providing us with numerous measurable advantages.

ŞİŞECAM

As Zer's business partner, we work jointly in the procurement processes we operate via Promena and ZerOnline. With Promena's e-auction system and professional team, Zer provides us with the top level of reliability, transparency, and swiftness in procurement processes. Zer's industry-specific know-how in catalogue buying and experience in procurement processes combine with Şişecam Group's acquisition potential, creating a synergy that provides savings on cost, time, and workforce in our procurement processes.

Tekfen

TOFAŞ

Tüpraş

Our partnership, which began when Tüpraş became a member of Koç Group, is continuously turning into synergy. Our partnership strengthened significantly when the SAP systems of Tüpraş and Zer became integrated, and Zer's procurement professionals providing services to Tüpraş expanded their knowledge on our refineries. Soon, we, at Tüpraş, aim to expand our collaboration volume with Zer, especially with online catalogues and timely shipments in our operations with deadlines.

Vitra

YapıKredi