efa:ON, Trade Fair for Electrical Engineering, Building Systems, Light and Energy

23.09.2025 – 25.09.2025


Since 1990, efa:ON has been the established trade fair for electrical engineering, building systems and light in Central Germany and the neighbouring regions.
At efa, manufacturers and service providers meet trade visitors from craft, industrial, commercial and energy supply companies, as well as traders, planners, architects, engineers, building operators and investors and the next generation of the industry. As the central information and communication platform in the industry, it offers trade visitors great added value through the combination of exhibition, trade program and event.
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Müller Messebau GmbH

Convincing booth concepts and outstanding execution is our business.
Regionally rooted, we accompany our clients worldwide at all trade show appearances personally, always individually on site.
Prefferably and most successfully we work in long-time, trustful partnerships with our customers, whose feedback confirms our thinking again each and every time.

Read our customer feedback

Allow us to advise you:
Germany | Europe | USA | Middle East, Far East and South America | International

Of course we are available for you personally. We are looking forward to your contact at info@mueller-messebau.de  •  Telefon +49 7665 9477228,
or get inspired by our already realised trade show booths:

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