The core.two corporate group
The core.two group brings together two companies under the umbrella of core.two GmbH (formerly primeLine Holding GmbH):
partimus and primeline solutions. With two locations—the data center in Limburg and the IT competence center in Bad Oeynhausen—we offer comprehensive IT services, ranging from custom hardware to cloud and data center services. Thanks to close collaboration within the corporate group, our customers benefit from strong synergies.
Consulting, hardware, software, cloud and data center services under one roof.
A central point of contact, even for very complex IT projects.
Fast and reliable implementation thanks to close coordination.
Ongoing further development and exchange of experience between the companies.
Customers benefit from all of the Group's partnerships with leading IT manufacturers.
partimus
partimus GmbH is the expert for data center and cloud services and operates a state-of-the-art data center in Limburg. As a reliable IT partner, partimus offers companies individual solutions for secure, high-performance and scalable IT infrastructures.
partimus offers highly secure Tier 3 colocation services with ISO 27001 certification and centrally located data center sites in Limburg. Flexible, scalable capacities as well as 24/7 monitoring and support ensure maximum operational security.
partimus enables customized cloud solutions, from Azure Local and Proxmox Private Cloud to hybrid cloud infrastructures. Our powerful, reliable cloud platform ensures that companies can scale flexibly and operate their applications securely and with high performance.
With managed hosting, network and storage solutions from partimus, companies benefit from a fully managed IT environment. We take care of trouble-free operation, maintenance and security management, while you can concentrate on your core business.
Our IT experts support you in all areas of IT infrastructure, from secure hosting strategies and Microsoft license consulting to the planning and implementation of complex IT projects. Thanks to our experience, you receive individual, efficient and future-proof solutions that are precisely tailored to your business requirements.
primeline solutions
For over 15 years, primeline solutions has been developing and manufacturing custom HPC servers, workstations, and storage solutions for businesses, research institutions, and government agencies. All systems are assembled exclusively in Germany and are designed for maximum performance and reliability.
At primeline solutions, we guide you from the initial idea through to implementation—with personalized consulting and customized IT solutions. Our team helps you select the right hardware, optimizes existing IT infrastructures, and develops solutions tailored precisely to your business needs.
With over 15 years of experience and more than 40,000 servers sold, primeline solutions offers high-performance and scalable IT infrastructures. Our HPC server solutions for science and industry, as well as high-availability server and storage systems for critical infrastructures, ensure maximum efficiency, security, and availability.
Whether HPC and silent workstations for agencies, architects and creative professionals or individual server and PC solutions for automotive, research and industry – we develop customized systems that meet the highest requirements. Our solutions are flexibly scalable and specially tailored to your workflows.
Our systems are assembled exclusively in Germany by experienced specialists and undergo strict quality controls. Thanks to our flat hierarchy, we are particularly flexible and fast in the implementation of your projects. You also benefit from our first-class support, which is always on hand with help and advice.
core.two
core.two is the corporate group behind primeline solutions and partimus, which emerged from the primeLine corporate group. The “two” in the name stands for the two families of shareholders who founded the group and continue to lead it today—and for the two locations in Bad Oeynhausen and Limburg an der Lahn.
Until 2026, the group operated under the name primeLine Group; following a name change, it has become the core.two Group—a decision made by the group itself. The same shareholders, the same management, the same responsibilities. What’s new is the name and the shared vision it embodies.
The group has grown out of three companies: primeline solutions as a manufacturer, primeLine Systemhaus as an IT service provider, and partimus as a data center operator. Since 2026, we have been combining their strengths in operations, support, and data center management under the name partimus—one team, one point of contact, one consistent service promise. Today, two brands represent two distinct areas of expertise that rely on each other: primeline solutions builds, partimus operates.
core.two is privately owned by the two families of shareholders from which the group originated. This means quick decision-making, long-term customer relationships, and investments that extend beyond the current quarter. With locations in East Westphalia and Hesse and over 90 employees, we have been building and operating systems for industry, research, and public institutions for over 15 years.
Manufacturing in accordance with DIN EN ISO 9001:2015, a data center certified to ISO 27001 and Tier 3, TÜV-certified systems, and operations that are fully GDPR-compliant. Hardware manufactured in-house, operations in our own data center, and support from our own teams—this combination under one roof is the exception among German small and medium-sized enterprises.
