Quick answer: Before filing a Turkish company, check the proposed trade name (ticaret unvanı) against MERSİS/Trade Registry records and separately check trademark risk. A preliminary name search reduces rework, but it does not guarantee final Trade Registry acceptance and it does not replace a trademark search.
This guide explains the company trade-name pre-check: what the Turkish Commercial Code requires, which official databases answer which question, and what to verify before the Articles of Association are finalised.
Trade Name, Brand and Trademark Are Different
| Term |
What it identifies |
Main check |
| Trade name / ticaret unvanı |
The registered legal name of the company |
MERSİS / Trade Registry |
| Brand / trading name |
The name customers may see in the market |
Commercial/brand strategy |
| Trademark |
A protected sign for goods/services |
Turkish Patent and Trademark Office database and legal assessment |
Important: A trade name being available in MERSİS does not prove that using the same or similar wording is free of trademark risk.
For the separate trademark-clearance, Nice-class and TÜRKPATENT filing process, use the Trademark Registration in Turkey: 2026 Costs & Process guide.
What the Turkish Commercial Code Requires
For joint-stock, limited and cooperative companies, Article 43 of the Turkish Commercial Code allows the trade name to be chosen freely, subject to the legal rules, while requiring the business subject to be indicated and the company type to appear in the name.
For an LLC, the title must include the company-type wording for a limited company; for a JSC, the title must identify the joint-stock company form. If a real person’s name or surname appears in the title, the company-type wording cannot simply be abbreviated in the way Article 43 prohibits.
Distinctiveness: An Available Search Result Is Not Final Approval
Article 45 requires an addition where necessary to distinguish a proposed trade name from another trade name already registered anywhere in Türkiye.
That means a useful pre-check should look beyond an exact character-for-character match. The final question is whether the proposed title is sufficiently distinguishable under the registry rules.
Do not promise “100% approval” based only on an online search. The relevant Trade Registry determines registrability in the actual filing context.
Use registry and trademark checks for different purposes before finalising the company title.
Restricted Words: Türk, Türkiye, Cumhuriyet and Millî
Article 46 states that the words “Türk”, “Türkiye”, “Cumhuriyet” and “Millî” may be included in a trade name only with a Presidential decision.
The same article also prevents additions that would create a misleading impression about the trader’s identity, business scale, importance or financial position, or that conflict with truth or public order.
Therefore, avoid building the filing around protected or potentially misleading wording unless the applicable permission and legal basis are confirmed first.
Does the Company Name Have to Be Entirely in Turkish?
No. A Turkish trade name can contain foreign-language brand or distinctive elements, but the current Ticaret Unvanları Hakkında Tebliğ draws an important line: the wording that shows the business subject and the company type must be in Turkish. For limited and joint-stock companies, at least one business subject must appear in the trade name, and the business-subject wording cannot be abbreviated under the current communiqué.
So the correct rule is not “the whole name must be Turkish” and not “the activity wording can be in any language.” A foreign brand element may be usable alongside the required Turkish business-subject and company-type wording, subject to distinctiveness, restricted-word and other registry rules.
Three Checks Before You Draft the Final Articles
- Trade-name check: Search MERSİS / relevant Trade Registry records for identical or potentially conflicting titles.
- Trademark check: Search the Turkish Patent and Trademark Office database for conflicting marks in relevant goods/services classes.
- Structure check: Confirm the business-subject wording, company-type wording and any restricted terms before the Articles of Association are finalised.
MERSİS, Trade Registry Gazette and Trademark Database: Which One Does What?
| Source |
Best use |
What it does not prove |
| MERSİS |
Company registration workflow and trade-name/data checks |
Trademark freedom-to-operate |
| Turkish Trade Registry Gazette |
Published company registrations and historical corporate announcements |
That a proposed name will definitely be accepted now |
| Turkish Patent and Trademark Office |
Registered/pending trademark research |
Trade Registry acceptance of the legal company title |
For company-data research after registration, see Trade Registry Gazette Search in Turkey.
When to Perform the Name Check
Run the pre-check before you invest time in finalising foreign corporate resolutions, powers of attorney, branding, domain work or Articles of Association around one fixed title.
A practical sequence is:
- Prepare two or three commercially acceptable title options.
- Check trade-name conflicts.
- Check trademark risk.
- Confirm the business-subject wording and legal suffix.
- Use the selected title consistently in the MERSİS draft and supporting company file.
This reduces rework if the first option is not registrable.
Company Name Check vs MERSİS Filing
A preliminary name check is not company registration. MERSİS is the central system through which company registration and later commercial-registry changes are prepared electronically. Final company registration is completed through the relevant Trade Registry process.
For the system itself, use MERSİS Company Registration in Turkey. For the full filing mechanics, use Company Registration in Turkey: MERSİS & Filing Guide.
Workon coordinates the company-registration file and connected MERSİS/Trade Registry workflow according to the agreed scope.
Common Company Name Mistakes
| Mistake |
Why it matters |
Better approach |
| Only checking Google |
Search-engine visibility is not registry availability |
Use official registry sources |
| Only checking MERSİS |
Trade-name availability does not answer trademark risk |
Run a separate trademark search |
| Using restricted words without permission |
The title can fail statutory requirements |
Check Article 46 before filing |
| Assuming a foreign-language element is automatically prohibited |
Overstates the rule and can distort branding decisions |
Check the complete legal title against current registry practice |
| Finalising all documents around one unchecked title |
A rejected title creates avoidable document rework |
Pre-check multiple viable options first |
Is a Company Name Reservation Guaranteed?
Do not treat a preliminary search as a long-term reservation or guaranteed entitlement. The filing should proceed using the current MERSİS/Trade Registry process, and availability can depend on the registry status when the application is actually prepared and submitted.
How Workon Coordinates the Name and Filing Stage
Workon coordinates company formation for foreign founders and overseas companies entering Türkiye. Depending on the agreed scope, this includes trade-name pre-check coordination, company-data planning, foreign-document sequencing, MERSİS/Trade Registry coordination and registered-address setup.
Trademark clearance, trademark prosecution and legal opinions are handled by the appropriately authorised trademark/legal professionals where required.
Review Workon’s company registration and operational coordination service.
Official Sources
Last reviewed: 17 September 2026. Final trade-name acceptance belongs to the relevant Trade Registry; trademark conflicts require separate review.
Frequently Asked Questions
Run a trade-name pre-check in MERSİS or the relevant Trade Registry records and separately search trademark risk through TÜRKPATENT. The registry and trademark databases answer different questions, so neither should be used as a substitute for the other.
No. A preliminary search reduces rework but does not guarantee final registrability. The proposed trade name must satisfy the Turkish Commercial Code and current registry rules, including distinctiveness, business-subject and company-type requirements, when the actual filing is reviewed.
No. Foreign-language brand or distinctive elements can be used, but the current Trade Names Communiqué requires the wording that shows the business subject and company type to be in Turkish. For limited and joint-stock companies, at least one business subject must appear in the trade name, and that business-subject wording cannot be abbreviated under the current rule.
No. Article 46 of the Turkish Commercial Code subjects these words to a specific Presidential-decision requirement. Potentially misleading or public-order-sensitive wording can also create registry issues.
No. Trade-name registration and trademark protection are separate. A name may be acceptable in the company registry yet still create trademark risk because of earlier marks, similar signs or other rights. Run a separate trademark clearance for commercially important branding.
Do not treat a preliminary search as a guaranteed long-term reservation. Prepare multiple viable options and proceed through the current MERSİS and Trade Registry filing process. Availability and acceptability are determined in the actual registration context.
