Integrated solutions for the secure & efficient operation of digital infrastructures
Comprehensive service in all project phases
Our experienced team supports your project from the initial planning phase through to installation, documentation, and ongoing operation. Benefit from years of expertise and proven know-how.
Optimise your IT infrastructure - Future-proof and flexible
A modern, secure IT infrastructure is the foundation for digital technologies and applications. That’s why it makes sense to rely on fibre-optic cabling solutions from Rosenberger OSI. Benefit from: high availability, superior performance and exceptional scalability. We take a comprehensive, tailored approach to your IT applications and processes. With over 30 years of experience in customer projects, we deliver IT infrastructures optimally adapted to your unique requirements. Let us help you find the perfect solution. Contact us
Topics:
400GBase-Ethernet800GBase-EthernetHigh density panel systemsOn-Premises, colocation or cloud?
Successfully implemented projects - That is what our customers say
"We appreciate Rosenberger OSI’s short decision-making paths, rapid service provision and operational flexibility. Rosenberger OSI supported us so well with its expertise and proposed solutions that our everyday work was made a lot easier."
envia TEL GmbH
"...That is why we only choose to work with partners and suppliers that can guarantee high quality standards and innovative solutions, such as Rosenberger OSI."
Elmec Informatica S.p.A.
"Despite the sometimes somewhat critical conditions in the installation environment, the Rosenberger OSI team has implemented our specifications in an exemplary manner..."
Tennet Holding B.V.
News & Media
Events & Webinars
03/17/2026
OFC 2026 - Los Angeles, California Experience limitless connectivity with Rosenberger's secure and efficient solutions, crafted to fulfill all your fiber optic needs at this year's OFC. Seize the chance to explore our latest products by visiting us at booth 4757.
Press Releases
01/07/2026
Heavy Duty 600 for optimized fibre connectivity of SYT Technologies The Heavy Duty 600 solution, including reinforced receptacles and fibre-optic cables, ensures reliable connections between the optronic turrets and the control infrastructure.
Events & Webinars
01/05/2026
Data Center Nation Paris - Visit us on site February 17, 2026
Data Center Nation Paris
Make an appointment with us on site.
Blog & Vlog
12/03/2025
Practical approaches to implementing efficient installation projects Plug-and-play solutions for more efficient installation
Testing and documentation of fibre optic cabling
Tests to verify the functionality of the systems
About Rosenberger OSI
Since 1991 Rosenberger Optical Solutions & Infrastructure (Rosenberger OSI) is a recognised expert for fibre-based connectivity, cabling solutions and infrastructure services in the areas of data centres, local area networks, mobile networks and industrial applications. As an integrated solution provider we have a profound expertise in developing and producing system solutions for communication networks. Our comprehensive service offering enables the secure and efficient operation of digital infrastructures. That combination, along with our strong customer focus as well as being integrated in the worldwide operating Rosenberger Group, is unique and makes us a strong partner in the global market.
1991 founded
800 employees
> 6 Mio. assembled fiber ends per year
> 500 international customers
Memberships
Rosenberger OSI itself is a member of various associations and thus works actively towards optimising economic constructions, raising product and maintenance quality, and improving production and delivery efficiency.
