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DEFAS Engineering

About Us

Defas Engineering

Since 2016 we have provided engineering for industrial facilities in Türkiye and across Europe, spanning mechanical systems, steel structures and process installations.

  • 2016Founded
  • 3,500 m²Production facility
  • 75Specialist staff
  • 20+Corporate references

Company Profile

Defas Engineering was founded in 2016 as a partnership between Mutlu Cenk Sürmen and Bener Kurt, as part of Sai Enerji’s strategic growth vision. We started out in a modest 200 m² workshop in Eskişehir, determined to serve industrial facilities to the highest engineering and quality standards. That first-day vision is the foundation of what we have become: an organisation delivering projects on a global scale.

With the strong momentum we have built since our founding, we have widened our fields of activity and our reach year after year, building our story one milestone at a time:

The 2017 Supplier of the Year trophy presented to Defas Engineering by Knauf Insulation
Supplier of the Year · 2017Knauf Insulation

Our Journey

  1. 2016

    Laying the Foundations

    We began operating in our first 200 m² production space, set up to bring high-standard engineering solutions to industrial facilities in and around Eskişehir.

  2. 2017

    Quality Recognised: Supplier of the Year

    In our first year in the sector, our performance and our approach to quality earned us the “Supplier of the Year” award from Knauf Insulation, a world leader in insulation.

  3. 2018

    Entering Advanced Technology and Aerospace

    Deepening our engineering vision, we joined the design team for critical aerospace test systems of which there are only a handful in the world, and successfully delivered the installation and commissioning of those advanced systems.

  4. 2019

    A Major Step in Petrochemicals

    We expanded our production capacity through strategic investment in petrochemical facilities in Yalova. With the capability gained in this period we began working directly with Türkiye’s largest oil refinery and petrochemical company, proving ourselves in mechanical systems and steel structures.

  5. 2020

    Formal Accreditation: The EPDK Licence

    We crowned our engineering standards with formal accreditation by obtaining our EPDK (Energy Market Regulatory Authority) licence, which authorises us to take on natural gas conversion and infrastructure projects for industrial facilities — work that demands a high level of expertise.

  6. 2021

    The European Market and Global Reach

    We took our engineering capability across borders. Entering the European market, we successfully completed the installation of major industrial facilities to international standards in Belgium, the United Kingdom, Slovenia, Austria and Romania.

  7. 2024

    Trusted Partner to Global Brands

    We became the official installation supplier across Türkiye for a global world leader in plastics processing and industrial automation equipment.

  8. 2025

    Moving to a Major Production Base

    In keeping with our goals and our growing vision, we moved into our own modern, state-of-the-art and fully equipped 3,500 m² production facility.

Where Are We Today?

With our 3,500 m² production facility and a dynamic team of 75 specialists, we continue to create value for leading industrial companies across many sectors, throughout Türkiye and in Europe. We help shape a fast-changing industrial world with innovative engineering — and raise the bar on every project.

Our Vision

To sustain the global success we have achieved in engineering and quality standards, and to be the most trusted, most innovative and first-choice solution partner in Europe and Türkiye for mechanical installation, steel structures and industrial automation assembly.

Our Mission

We exist to meet our clients’ needs to global standards with sharp engineering, maximum reliability and sustainable mechanical installation solutions — and to add value to the future of industry with the experience we have gained in the international market.

Let's Work Together

With 22+ corporate references, we are beside you through your project's engineering and installation.

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