Cenergy Holdings

Cenergy Holdings

Cenergy Holdings SA

Maroussi, Attiki, Greece

WindSolarHydrogenOtherPublic company
Founded 20161001-5000 employees4k tonnes CO₂ avoided/yr
Profile last updated: June 6, 2026

About

Founded in 2016, Cenergy Holdings is a public company headquartered in Maroussi, Greece with approximately 1001-5000 employees specializing in Wind, Solar, Hydrogen.

Cenergy Holdings is a Belgium-based holding company, listed on Euronext Brussels and the Athens Stock Exchange, that invests in industrial companies in energy transfer, renewables, data transmission and construction. Its subsidiaries, Hellenic Cables and Corinth Pipeworks, manufacture submarine and land power cables, telecom cables, and steel pipes and hollow sections. Products serve offshore wind, hydrogen transport, carbon capture and storage, and gas pipeline projects. The group reports decarbonisation targets and holds ISO 50001 and ISO 14001 certified management systems.

Headquarters

Maroussi, Greece

Founded

2016

Employees

1001-5000

Company type

Public company

Focus areas

submarine cablesoffshore windhydrogen pipelinessteel pipesenergy transmissionCCStelecom cablesdecarbonisation

Products & services

Business models

B2B

Value chain

ManufacturingEngineeringConstructionR&D

Locations

Headquarters

Amarousiou-Halandriou 33, 151 25, Maroussi, Attiki, Greece

Operating locations (1)

  • Avenue Marnix 30, Brussels, Belgium

Projects

3

Thor offshore wind farm

Offshore wind cable system

Consortium of Hellenic Cables and Jan de Nul supplying the cable system for RWE's Thor offshore wind farm, expected to power over a million Danish homes by 2027.

DenmarkClient: RWE

Ostwind 3 wind farm connection

Offshore wind export cable

Hellenic Cables supply of a 220 kV export cable system connecting the Ostwind 3 wind farm to the German grid.

Germany

Hydrogen-certified pipeline for Snam Rete Gas

Hydrogen pipeline

440 km of hydrogen-certified pipelines to ASME B31.12 Option B for Snam Rete Gas S.p.A.

ItalyClient: Snam Rete Gas S.p.A.

Credentials & affiliations

Certifications

ISO 50001

Issued by: ISO

ISO 14001:2015

Issued by: ISO

ISO 14064:2018

Issued by: ISO

Awards

Energy Mastering Awards

Energy Mastering Awards2019

Worlds Best Companies for Sustainable Growth

2026

Industry memberships

Hydrogen EuropeHydrogen Europe IndustryEuropean Hydrogen AllianceCopper Mark

Partnerships

Wasco Energy Group, AEIFOROS S.A.

Sustainability

4k

Tonnes CO₂/yr avoided

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