ERREKA
ERREKA logo
Imagen
Construction of the ProtoDUNE single-phase detector at CERN.
1
Imagen
EDB technology bolt: Bolt load measurement throughout the whole life cycle.
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Imagen
Hot forged fasteners
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Pic legend 1: Construction of the ProtoDUNE single-phase detector at CERN.
Pic legend 2: EDB technology bolt: Bolt load measurement throughout the whole life cycle.
Pic legend 3: Hot forged fasteners

General information

  • Company name
    ERREKA
  • Address
    B. Ibarreta SN, 20577, Antzuola, Gipuzkoa, España.
  • Turnover
    75.00 million EUR in year 2025
  • Employees
    500 in year 2025
  • SME
    NO
  • Contact Info:
    • Phone
      +34607518001
    • Email
      contact@erreka.com

Activity and Skills

Erreka Smart Fastening is part of the Erreka Group, itself belonging to Mondragon Corporation. In 2025, Erreka achieved a turnover of €75M, supported by 500 professionals and six production plants across three continents.

For over 65 years, Erreka Smart Fastening has been a European leader in the design, manufacturing and engineering of advanced bolted connections for demanding sectors such as wind energy, construction, hydropower, engines and Big Science.

Erreka has developed its property EDB technology – Erreka Digital Bolt, which equips each fastener with an ultrasonic transducer integrated into the bolt. This innovation enables direct measurement of clamp load during assembly with ±3% accuracy, unlocking more economical, more reliable and more efficient joint designs.

Contracts for Big Science facilities

[CERN - DUNE ] DUNE project- Bolting supply and tightening strategy design for cryostat structure. (2023 - 2025)
The Deep Underground Neutrino Experiment (DUNE) is an international experiment for neutrino science. Discoveries over the past half-century have put neutrinos, the most abundant matter particles in the universe, in the spotlight for further research into several fundamental questions about the nature of matter and the evolution of the universe — questions that DUNE will seek to answer. DUNE will consist of two neutrino detectors placed in the world’s most intense neutrino beam. One detector will record particle interactions near the source of the beam, at the Fermi National Accelerator Laboratory in Batavia, Illinois. A second, much larger, detector will be installed more than a kilometer underground at the Sanford Underground Research Laboratory in Lead, South Dakota — 1,300 kilometers downstream of the source. These detectors will enable scientists to search for new subatomic phenomena and potentially transform our understanding of neutrinos and their role in the universe.

Relevant R&D projects

[HORIZON EUROPE] Non-Destructive Inspection Services for Digitally Enhanced Zero Waste Manufacturing (ZDZW ) (2022 - 2025)
ZDZW excels in offering a catalogue of IoT based non-destructive inspection technologies, providing an accurate inline evaluation of key product parameters that have an effect in quality requirements within different technical areas, such as: Part Integrity, Visual Requirements and Thermal Process efficiency. The ZDZW Inspection Solutions follow the concept of Inspection as a service, guaranteeing its cost effectiveness and improved return of investment, offering different types of subscription and pay-per-use models depending on the offered functionalities.
[HAZITEK] New solutions and technologies for Monopile-type Foundations, Transition Piece, and Connection Systems between both in Offshore Wind Turbines +15 MW. (MEGAWIND ) (2022 - 2024)
[HAZITEK] Experimental Development for the Transport and Logistics of Hydrogen generated in Offshore Wind Farms (HYSHORE ) (2021 - 2023)
Development of new technological solutions (materials, manufacturing processes, components and systems), for applications in the transport and logistics of Hydrogen generated in offshore wind farms, contemplating 2 ways: pipeline and naval.
[CDTI - R&D Projects] Development of a New Line of High-Reliability Sensorized Elements for High-Performance Critical Structures (µBOLT ) (2020 - 2022)
[CDTI - Integral projects] Critical Condition Resistant Stainless Steels for the Energy Sector (IMAI ) (2010 - 2012)