W3+ Fair is the business platform for optics, photonics, electronics and precision engineering.
For more than ten years, it has been bringing together companies, research institutions and decision-makers at Germany’s leading high-tech hubs.
Innovation happens when different areas of expertise come together.
That’s exactly what W3+ Fair was created for.
We are a business platform that brings together research and industry, developers and users, start-ups and established companies.
We create access to the people, technologies and networks
that drive innovation.
We connect Germany’s leading technology regions and foster lasting collaboration between research, industry and end users.
Relevance, quality and meaningful connections – creating new partnerships, projects and business opportunities.
The cross-industry concept is what makes W3+ Fair unique. Researchers, developers and manufacturers from the four key technologies come together to connect, exchange ideas and meet international experts from major application fields including MedTech & Life Sciences, Semiconductors, Automation, Space & Aerospace, Defence & Security, and many more.
Innovation meets real-world demand.
W3+ Fair creates the environment where new ideas, strategic partnerships and collaborative projects emerge to address the technological challenges of tomorrow.
W3+ Fair takes place where innovation happens.
By bringing together Jena and Wetzlar, the event connects two of Europe’s leading high-tech hubs.
Each exhibition is deeply rooted in its regional innovation ecosystem while forming part of a strong, cross-regional network that fosters collaboration, technology transfer and new business opportunities.
Photonics Valley
Jena
Located at the heart of one of Europe’s leading optics and precision engineering regions.
Focused on optics, precision engineering, electronics and industrial applications.
Located in the heart of Germany’s Photonics Valley.
Focused on photonics, optics, laser technology, MedTech, semiconductor technologies, research and Deep Tech.
High-Tech Exhibition in Wetzlar, Central Hesse, Concludes with Positive Results
Defence & Dual-Use technologies, Space, start-ups and AI shaped this year’s programme. Strong innovation, valuable business contacts and intensive networking defined the atmosphere at the Buderus Arena Wetzlar.
Successful High-Tech Exhibition Sets New Benchmarks for Central Germany
The W3+ Fair Jena has further strengthened its position as one of Thuringia’s leading technology events. Supported by Gold Partners OptoNet and EPIC, the Sparkassen-Arena Jena was transformed into a vibrant marketplace for professionals in photonics, optics, electronics and precision engineering on **24–25 September 2025.
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High-Tech Technologies Meet Real-World Applications
