Trademark Registration Certificate

Registered Brand: Dervişoğlu Zeytin – Yılko Gıda

The Dervişoğlu Zeytin brand is officially registered under the Industrial Property Law No. 6769. This certificate, granted under Class 29, provides legal protection for our brand across a range of food products including olives, olive oil, and olive paste for a period of 10 years.

This certification assures our customers that they are purchasing a registered, reliable, and inimitable brand.

Our trademark registration ensures the legal protection of our products and reinforces our brand’s distinguished position within the sector.

Our registered logo and brand name serve as a trusted identity that represents our brand at every stage of production and delivery.

Business Registration Certificate – Ministry of Agriculture

Authorised Food Production Facility – Official Registration

Dervişoğlu Zeytin is a registered food production facility under the authority of the Orhangazi District Directorate of Agriculture and Forestry. This certificate confirms that all our production processes are conducted under government supervision and in full compliance with legal requirements.

Our facility is located in Bursa, Orhangazi, and all production activities are carried out in accordance with current food industry regulations.

Production is based on principles of food safety, hygiene standards, and traceability, and our quality management is officially certified.

As an officially registered producer, we are recognised as a trusted supplier in both domestic and international markets.

ISO 22000:2018 Food Safety Management System Certificate

International Food Safety Certification – ISO 22000:2018

Dervişoğlu Zeytin holds the ISO 22000:2018 Food Safety Management System certification for its olive processing and sales processes. This certificate confirms that the production, storage and sales stages are carried out in accordance with international standards.

This certificate is the official guarantee that our products reach the customer in a hygienic, safe and traceable manner.

It is also an important quality certificate that increases our brand's competitiveness in domestic and international markets.

Gemlik Olive Geographical Indication Agreement

Authorised Use of the Gemlik Olive Geographical Indication Logo – Dervişoğlu Zeytin

At Dervişoğlu Zeytin, we hold the official right to use the Gemlik geographical indication logo, granted by the Gemlik Commodity Exchange. This authorisation allows us to produce only genuine Gemlik olives grown exclusively in the Gemlik region.

This right is registered in line with the quality standards set by the Turkish Patent and Trademark Office and certifies the authenticity and regional identity of our products.

Thanks to this agreement, we are legally entitled to use the “Gemlik Olive” name and logo on our products, guaranteeing our customers 100% authentic Gemlik olives.

By choosing products with geographical indication, our consumers enjoy olives of known origin and assured quality they can trust.

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Our ISO 9001:2015 Quality Management System Certificate

Dervişoğlu Zeytin's production, packaging and sales processes have been certified under the ISO 9001:2015 quality standard at the Yılko Gıda facilities to which we are affiliated. This IQR-approved certificate confirms that the production of olive varieties, pickled products and olive oil filling processes are managed in accordance with international quality requirements.

ISO 9001:2015 is the official indicator that our company conducts all its operations, from customer satisfaction to process efficiency, with a planned, controllable and continuously improving system. This certificate is also an important quality assurance that proves our brand has a reliable, high-quality and standard-compliant production approach both in Turkey and abroad.