Since 2008, our companies have been carrying out maintenance, repair and new wagon production of passenger and freight wagons according to the TU, UIC criterias within the framework of general and specific instructions that the General Directorate of TCDD has identified. Our factory which manufactures parts of passenger wagons operates in Sefaköy and our factory which manufactures parts of freight wagons operates in Sivas Organized Industrial Zone.

Passenger Wagon Production and Accessories

For passenger wagons, transom window, ventilation ducts and racks production is made for all types of wagons by our company. Also for DM and M tools of DMU type wagons,  accessories, passenger compartment windows and air ducts are manufactured.

Freight Wagon Production and Accessories

For freight wagons, our company manufactures 2-4 axle wagon V0 revision, aluminum sliding doors for Habıss and Gabss type wagons, elastomeric buffer, living wagon for SgsS wagon with 120 km / h for TCDD road maintenance and repair workers, FALNS wagons body.

Our Integrated Management System Policy

-The first goal as GÖKYAPI is to meet the customer demand timely, correctly and in full,
- Being able to take part in the fast growing rail transportation sector,
- To produce products which are our own design by giving importance to research and development,
- Providing unconditional customer satisfaction,
- To determine risk-based thinking and continuous improvement as our basic philosophy,
- To recognize a healthy supplier-organization relationship as an integral part of customer satisfaction,
- To develop systems to ensure business health and safety in our activities and prevent work accidents,
- Analyzing and minimizing the health and safety risks that may arise in the working environment,
- Focusing on protecting our natural environment, to be respectful to people and the environment, to prevent pollution at the source,
- Analyzing and minimizing important environmental dimensions that may occur in the working environment,
- To constantly train all personnel for production and sales with a participatory policy, to keep team spirit in mind,
- To comply with the legal and regulatory requirements and to accept this as a commitment to  the society we live in and to third parties.


To provide the products and services that our customers need, to provide the most reliable, innovative and cost effective products and solutions in the direction of continuous improvement principle.


Producing quality products and services to the rail transport sector in Turkey and to have a say in this regard. To design, produce and market products oriented to market needs.

certificate and document