Türkiye Business Verification Resources

This resource hub centralizes the primary databases and portals required to conduct fundamental business verification and due diligence in Türkiye.

DealyVIP strictly evaluates the authority of these sources. We separate official state registries from institutional and secondary tools to ensure you understand the reliability of the data you are checking.

1. Company Registration & Identity

MERSİS (Central Registration System)

• Classification: OFFICIAL_PRIMARY (Ministry of Trade)
• What it helps with: Verifying the legal existence, VKN (Tax ID), and basic status of a company.
• Access Notes: Basic search is public. Full historical and structural data requires e-Devlet (Turkish citizen) authentication.
• Link: mersis.ticaret.gov.tr
• Guide: How to Verify a Turkish Company

Turkish Trade Registry Gazette (Ticaret Sicili Gazetesi)

• Classification: STATUTORY_OR_REGULATED_INSTITUTION (TOBB)
• What it helps with: Viewing official announcements of company establishment, address changes, and board appointments.
• Access Notes: Index search is public. Viewing PDFs requires a free user registration.
• Link: ticaretsicil.gov.tr
• Guide: How to Check the Trade Registry Gazette

2. Tax and Invoice Verification

GİB Interactive Tax Office (İnteraktif Vergi Dairesi)

• Classification: OFFICIAL_PRIMARY (Revenue Administration)
• What it helps with: Confirming a company’s active tax registration (e-Vergi Levhası).
• Access Notes: Publicly accessible, but requires exact parameters (e.g., VKN and specific Tax Office name) to return a result.
• Link: ivd.gib.gov.tr

GİB e-Archive Invoice Portal (e-Arşiv Fatura)

• Classification: OFFICIAL_PRIMARY (Revenue Administration)
• What it helps with: Verifying the technical issuance of an e-Archive invoice.
• Access Notes: Publicly accessible. Requires the Vendor VKN, Invoice Number, and UUID.
• Link: ebelge.gib.gov.tr
• Guide: How to Check a Turkish e-Invoice

3. Intellectual Property

TÜRKPATENT (Turkish Patent and Trademark Office)

• Classification: OFFICIAL_PRIMARY (Ministry of Industry and Technology)
• What it helps with: Checking if a company actually owns the trademark or patent they are claiming.
• Access Notes: Brand and patent searches are publicly available through the online research portal (EPATS).
• Link: epats.turkpatent.gov.tr

4. Due Diligence & Supplier Evaluation

While the government portals above confirm legal existence, the following DealyVIP guides provide the framework for evaluating operational and commercial risk:

• Business Due Diligence Checklist: The step-by-step process for evaluating a partner before sending funds.
• Finding and Evaluating Suppliers: How to verify factory addresses and production capacity.
• Warning Signs: Common red flags and identity inconsistencies to watch for.
• Practical Business Assistance: When to escalate your checks to a local commercial lawyer or inspection agency.