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Our business

Teseos is the technical and energy services provider for the Encevo Group, a leading energy provider in Luxembourg and the Greater Region, which also includes the network operator Creos and the energy supplier Enovos.

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Subsidiaries

A network of experts

Through its subsidiaries, Teseos employs over 1,100 professionals specialising in a range of fields: consultancy and training services, building services (electrical installations, heating, ventilation and air conditioning), equipment supply, facilities management, the design and installation of energy distribution systems, and Energy as a Service (EaaS).
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ALL IN ONE Technologies S.A.
Grethen Rénovation S.à r.l.
Hoffmann S.A.S.
Concorde Gestion S.à r.l.
MINUSINES S.A.
Smart Cube S.à r.l.
Power Panels S.A.
Global Facilities S.A.
Grethen S.à r.l.
Wieland & Schultz GmbH
Blitzschutzbau Rhein-Main Adam Herbert GmbH
charge@lux
Agence de l’Énergie S.A.
Wieland & Schultz Kaiserslautern GmbH
e3consult S.à r.l.
C. Schanen S.à r.l.
Electricité Wagner S.A.
White Electris logo with a stylized spark icon to the left of the word “electris” and the tagline “your energy solutions hub” beneath, all in lowercase on a transparent background. electris Luxembourg S.A.
Paul Wagner & Fils S.A.
Arctic Cooling Systems S.à r.l.
News

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Stylized red vertical gradient cover with vertical texts “Aktivitätsbericht” and “Rapport d’activité”, a white pill shape reading “2025” and the Teseos logo at bottom left
Teseos – a technical services provider and facilitator of the energy transition in Luxembourg and Germany…
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Activity Report 2024
Teseos Luxembourg S.A. – A Key Player in the Energy Transition - A Look Back at…
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About

Your energy transition partner in the Greater Region

As coordinator and shareholder of various entities, Teseos manages the group’s technical, energy and infrastructure activities, with a particular focus on implementing the energy transition. With its 21 subsidiaries and 27 sites across Luxembourg and the Greater Region, Teseos covers the entire value chain of technical services through companies specializing in technical services, whilst placing a strong emphasis on the energy transition.
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Encevo logo: on the left, an abstract symbol formed by several interlocking rounded geometric shapes, in shades of blue and green evoking energy and sustainability; on the right, the name ‘Encevo’ written in blue sans-serif typeface, with a modern and sleek style on a transparent background. Encevo logo: on the left, an abstract symbol formed by several interlocking rounded geometric shapes, in shades of blue and green evoking energy and sustainability; on the right, the name ‘Encevo’ written in blue sans-serif typeface, with a modern and sleek style on a transparent background.
Teseos Activity Report 2025

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report 2025

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