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
05/31/2023
Vlog #10 How VSFF connectors improve data center sustainability
OSI Insights in our video-blog:
How VSFF connectors improve
data center sustainability
05/10/2023
New space-saving rack
Cabling specialist presents the space-saving Patch Location Rack COMFORT for data centers and IT rooms.
04/25/2023
Update 400/800G optical transceiver
Who will win the race as the fiber optic connector interface?
How is the topic of port breakout developing?
What contribution can transceivers make to sustainability in the data center?
04/04/2023
Colocation: Strengths, structure and challenges
The principle of colocation
Typical structure and challenges
Solutions for colocation providers
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.
