About Zer

Zer started its activities as a Koç Group company in 2003 under the name of Beko Ticaret A. Ş. Our company
carries out its work with a vision of ‘’being Turkey’s best, and the World’s leader in strategic procurement
and efficiency.’’ In 2007, it was registered under the name of Zer Central Services and Trade A.Ş.

Main activities of Zer can be grouped under two fields as “Purchasing Outsourcing Services” and “Purchasing Technology Services”. With these activities, Zer performs services offered by similar companies operating in the
global arena, with local supplier information and maximizes the benefits, provided to its customers.

Purchasing Outsourcing Services (BPO-Business Process Outsourcing);

proceed with a planning, based on the purchase categories after all analysis of spend data. Customers have the option to transfer entire purchase processes to Zer or to outsource services partially.

  • Strategic Sourcing (Source to Procure),
  • Operational Sourcing (Procure to Pay),
  • Strategic and Operational Sourcing (Source to Pay)
In 2018, Zer provided services to many companies outside of Koç Group with significant advantages in procurement categories s uch as packaging materials, non-hazardous wastes, industrial catalogs, sea transportation etc.

Purchasing Technology Services (Promena);

new version of the strategic sourcing suit developed under the Promena brand has been completed. Promena software is used in the purchasing processes of many companies and together with the transition to cloud, our services have become available worldwide. Below mentioned Promena modules crea te operational efficiency, financial savings and accountability on customer side.

  • E-Procurement (Catalog, Requisition and PO Management)
  • Supplier Relationship Management
  • E-Sourcing Management (RFI-RFQ-Auction)
  • Spend Analysis

Zer has set its digital transformation and innovation activities as a priority area for competitive advantage. And from now o n; the main goal of Zer is to become a global purchasing outsourcing company with a business model that benefits all customers and solution partners.

About Promena

Promena was founded in 2001 by Koç Holding (Turkey) and Carlyle Group (USA) with the aim of providing high efficiency and effective control of time, labor and cost savings to its customers in their purchasing activities with top technology.

Since 2013, Promena has combined its resources with Zer Merkezi Hizmetler ve Ticaret A.S., which is a fully owned subsidiary of Koç Holding. With its innovative solutions such as e -Sourcing, e Procurement, SRM and Spend Analysis, Promena has created the “Strategic Sourcing Solutions” market in Turkey and surrounding regions and is firmly established as the market leader of its sector.

In the recent years, Promena is increasing its global footprint throughout new customers and resellers all over the world.

The Leadership Team


The only Turkish strategic sourcing platform listed in SpendMatters Almanac listing.

The only Turkish strategic sourcing platform listed in SpendMatters SolutionMap.

Having a place in top 3 vendors for sourcing, procurement and auction categories. 

One of the top 3 Strategic Sourcing Platforms

The only Turkish strategic sourcing platform listed in SourceForge

The only Turkish company listed in 20 Most Promising Solution Provider - 2015

The only Turkish Strategic Sourcing Platform listed.