
We serve as a bridge, enhancing and streamlining communication between our suppliers and customers. With over 20 years of experience in corporate procurement and supply chain management, we support our stakeholders with exceptional service.
Create your username and password by clicking here. Begin the self-assessment process by completing the form.
Get access to general and sector-specific evaluation criteria from KoçZer's supplier management team.
Pay the Membership Fee: - Hazardous / Non-Hazardous Wastes and Scrap Sector: 15.000 TL + VAT - Other: 8.500 TL + VAT
An independent audit firm will conduct a verification visit. The payment includes the audit fee and a 2-year membership.
Companies with positive self-assessment and verification results will remain in the supplier system for 2 years.
Suppliers can submit bids to KoçZer in the sectors they have been approved for.
At the end of two years, a conformity and accuracy check will be conducted again.
For any inquiries, please contact our support line at (0216) 556 01 98.

Ensuring secure and transparent communication throughout our supplier processes is our priority. Please take note of the following:
· We exclusively use corporate email addresses ending with @koczer.com.
· We do not request payments via phone calls, SMS, or WhatsApp.
· We never request payments to personal bank accounts under any circumstances.
· All payments must be made exclusively to the official bank account registered under the name “Zer Merkezi Hizmetler ve Tic. A.Ş.”
· The KoçZer Supplier System membership fee must be paid to the specified official bank account only after the “Self-Assessment” step is completed.
· Aside from the membership fee, we do not request any additional payments such as deposits, guarantees, or similar charges.
If You Encounter a Suspicious Situation
Please report the issue to us via the KoçZer Ethics Line.
