# ENKA

ENKA İnşaat ve Sanayi A.Ş. is an Istanbul-based engineering and construction company whose website lists oil, gas and petrochemicals, power plants, infrastructure and building works among its areas. Its 2026 project updates cover piping works at Hinkley Point C in England, a motorway in North Macedonia and a motorway section opened in Serbia with its joint venture partner Bechtel.

- Type: EPC contractor [Source 1]
- Address in an official source: Istanbul, Türkiye [Source 1]
- Founded: 1957 [Source 2]
- Ownership: Listed company; Istanbul Stock Exchange ENKAI [Source 3]
- Website: https://www.enka.com [Source 1]
- Legal name: ENKA İnşaat ve Sanayi A.Ş.
- Projects undertaken to date: more than 600 [Source 1]
- Countries with projects: 61 [Source 1]
- Total contract value to date: exceeding USD 69 billion [Source 1]
- On EPC Feed: 0 tenders issued, 0 awards won, 0 evaluated bids, 0 tenders financed, 3 stories
- Page: https://epcfeed.com/companies/enka


## ENKA: multidisciplinary construction capability across nuclear and transport infrastructure

EPC Feed engineering assessment. Published 2026-10-25; Updated 2026-10-25T21:48:09.855Z.

ENKA’s engineering and construction platform is built around large, technically varied projects. The company says it was founded in 1957 and has undertaken more than 600 projects in 61 countries, with a combined contract value exceeding USD 69 billion. Its disclosed activity spans oil, gas and petrochemicals, power plants, infrastructure, building works and data centers, alongside power generation and specialist group companies in fabrication and foundation engineering. This breadth gives ENKA a useful position on projects where major civil works, industrial facilities and specialist engineering must be mobilized together. [Source 1]

ENKA’s September 2026 update on Hinkley Point C provides an unusually concrete view of a specialist work package. The company says it signed a 2021 contract with Arabelle Services for prefabrication and erection of piping systems for the conventional power islands of two 1,600 MW units. In 2024, it secured additional work covering design verification, material procurement and thermal-insulation installation for piping and equipment in the turbine hall. As of September 2026, ENKA reported Unit 1 prefabrication and erection at 27 percent and Unit 2 prefabrication at 74 percent. The described work positions ENKA within major nuclear infrastructure delivery through disciplined piping fabrication and installation. [Source 4]

Piping systems in a conventional power island connect large equipment and auxiliary systems through a dense network of process and service lines. Prefabrication can move repeatable work into a controlled shop environment, while site erection must coordinate access, lifts, supports, weld inspection and sequence with other trades. Design verification and insulation procurement add further interfaces, linking engineering records and material traceability to field installation. ENKA’s additional turbine-hall package therefore complements its original prefabrication and erection scope and illustrates a practical combination of engineering verification, procurement and construction services within a nuclear program. [Source 4]

ENKA’s transport infrastructure portfolio provides a contrasting engineering profile. In North Macedonia, the ENKA-Bechtel joint venture is advancing the Corridors 8 and 10d motorway project. ENKA’s September 2026 update reports more than 1,500 personnel, including subcontractors, at work across project sections. By the end of August, the joint venture reported 7.2 million cubic metres of excavation, 2.6 million cubic metres of fill, 1.7 million tonnes of aggregate production and 130,000 cubic metres of concrete work. These figures convey the scale of earthworks, materials management and structural activity across the corridor. [Source 5]

The update also describes earthworks, structural construction and drainage as concurrent activities in sections 1, 2 and 4. That combination is significant: motorway delivery depends on coordinating cut-and-fill balance, ground conditions, drainage networks, structures, access and pavement readiness across multiple work fronts. ENKA reports 1,273 days and 13.6 million person-hours without a lost-time incident as of the update. The safety record is company-reported, while the broader engineering story is visible in the volume and sequencing of simultaneous construction packages. This is a useful example of joint-venture execution on a long, geographically distributed program. [Source 5]

The Morava Corridor in Serbia demonstrates how ENKA and Bechtel integrated highway construction with flood protection and local procurement. The joint venture reported the opening of a 28.7-kilometre section in June 2026, bringing more than 100 kilometres of the planned 112-kilometre route into service. The larger corridor includes river regulation, diversions, dykes and culverts to address flooding in the West Morava valley. Integrating those works with an operating road corridor requires coordination between hydraulic design, bridge and culvert construction, traffic staging and environmental management. [Source 6]

This project also provides a constructive example of staged commissioning and public use. Opening sections while the remaining corridor is under construction can bring transport benefits sooner, but calls for careful interfaces, temporary connections, traffic management and safety controls. ENKA and Bechtel report that 82 percent of procurement has flowed through Serbian businesses and that approximately 4,200 craft professionals were employed at peak construction. Those local-content figures are company-reported; they nevertheless illustrate how the joint venture has organized a large labor and supplier base in the host country. The combination of transport links and flood defenses gives the project a wider resilience role. [Source 6]

ENKA’s group structure adds supporting capabilities. Its corporate site identifies Çimtaş for fabrication and manufacturing and KASKTAŞ for foundation engineering, complementing its main engineering and construction activities. Such specialist capabilities can be important on projects involving heavy steelwork, complex foundations, constrained sites and high-load structures. The group also operates in power generation and data centers, giving it experience with facilities where building, mechanical, electrical and systems coordination must be combined. The engineering advantage is a broader internal ecosystem of project disciplines, especially when the delivery organization clearly allocates design responsibility and specialist package interfaces. [Source 1]

Taken together, the recent projects show ENKA engaging across nuclear construction, motorway delivery and major flood-resilience works. The company’s positive profile rests on project scale and diversity, plus evidence of working through joint ventures and specialist subsidiaries. Owners looking for a contractor on a complex infrastructure program can reasonably examine ENKA’s experience with multi-package construction, site logistics, safety management, local procurement and long-term coordination. This assessment interprets company project updates and corporate disclosures. A project-specific review should focus on ENKA’s exact contract scope, joint-venture responsibilities, technical authority, local partner structure and proposed leadership team. [Source 1, 4, 5, 6]


## Projects named in sources

- Hinkley Point C nuclear power plant, England, United Kingdom: Piping prefabrication and erection, conventional power islands, 2021, under construction [Source 4]
- Corridor 8 and 10d motorway, North Macedonia, North Macedonia: Joint venture with Bechtel, under construction [Source 5]
- Morava Corridor Motorway, Serbia, Serbia: Joint venture with Bechtel, under construction [Source 6]

## Sources

1. [About us | ENKA İnşaat ve Sanayi A.Ş.](https://www.enka.com/about-us/). Reference, ENKA İnşaat ve Sanayi A.Ş., Read 2026-10-23.
2. [History | ENKA İnşaat ve Sanayi A.Ş.](https://www.enka.com/about-us/history/). Reference, ENKA İnşaat ve Sanayi A.Ş., Read 2026-10-23.
3. [Investor Relations | ENKA İnşaat ve Sanayi A.Ş.](https://www.enka.com/investor-relations/). Reference, ENKA İnşaat ve Sanayi A.Ş., Read 2026-10-23.
4. [Progress of Hinkley Point C Nuclear Power Plant Project in the UK as of September 2026](https://www.enka.com/progress-of-hinkley-point-c-nuclear-power-plant-project-in-the-uk-as-of-september-2026/). Company release, ENKA İnşaat ve Sanayi A.Ş., Read 2026-10-23.
5. [Progress of The Corridor 8 & 10d Motorway Project as of August 2026](https://www.enka.com/progress-of-the-corridor-8-10d-motorway-project-as-of-august-2026/). Company release, ENKA İnşaat ve Sanayi A.Ş., Read 2026-10-23.
6. [ENKA-Bechtel JV Opens 28.7 km Section of the Morava Corridor Motorway](https://www.enka.com/enka-bechtel-jv-opens-28-7-km-section-of-the-morava-corridor-motorway/). Company release, ENKA İnşaat ve Sanayi A.Ş., Published 2026-06-26, Read 2026-10-23.
