Integrated solutions for the secure & efficient operation of digital infrastructures
Comprehensive service in all project phases
Our experienced staff will accompany your project - from planning to installation, documentation and ongoing operation. Trust in over 30 years of know-how.

Optimize your IT infrastructure - Future-proof and flexible
A modern, secure IT infrastructure is the basis for digital technologies and applications. That is why it makes sense to rely on fiber-optic cabling solutions from Rosenberger OSI. Benefit from high availability, performance and scalability. We take a comprehensive, individual approach to your IT applications and processes. We have placed our expertise in the service of customer projects for over 30 years. The result: an IT infrastructure that is optimally adapted to your requirements. We will be happy to help you find the optimum solution. Contact us
Topics:
400GBase-Ethernet800GBase-EthernetSpine-Leaf cablingHigh density panel systemsOn-Premises, colocation or cloud?Data center relocation
Successfully implemented projects - Thats 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
03/07/2023
Expansion of the production site in Mexico
Cabling specialist expands telecommunications portfolio in Apodaca near Monterrey starting this year and increases number of employees
02/28/2023
The challenge of data center relocation: planning, risks, implementation
Pitfalls to avoid
Decision-making aids
Tips for a smooth process
02/14/2023
Vlog #9 Optimizing IT security: New guidelines and deadlines
OSI Insights in our video-blog:
KritisV, ISO 27001/27002, NIS-2
Digital Operational Resilience Act
01/03/2023
Data highway connection for central Germany
Data highway connection for central Germany. Rosenberger OSI is supporting envia TEL during the expansion of DE-CIX Leipzig
About Rosenberger OSI
Since 1991 Rosenberger Optical Solutions & Infrastructure (Rosenberger OSI) is a recognized expert for fiber-based connectivity, cabling solutions and infrastructure services in the areas of data centers, 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
830 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.
