core.two
The group behind primeline solutions and partimusWe build IT systems and we operate them. Servers, storage, and workstations are created in our own manufacturing facility in Bad Oeynhausen and subsequently run in our own data center in Limburg an der Lahn. Two brands, one company, all in Germany.
Rebranding
The primeLine group becomes core.two
Starting September 2026, the primeLine Group will operate as core.two. The new name makes visible what has belonged together for a long time: two companies that have developed in different directions and yet work closely together.
At the same time, partimus and the primeLine Systemhaus have merged into one company. What previously ran in two places is now in one hand: data center, cloud, operations, and IT services come from partimus.
If you have questions about the transition, please feel free to write to us.
The corporate group
From manufacturing to ongoing operation
A server is created at our facility in Bad Oeynhausen: developed, configured, assembled, and tested. When it later runs in our data center in Limburg an der Lahn, colleagues who know the same technology take care of it. Between construction and operation, there is no change of manufacturer and no external responsibility.
This is exactly what connects primeline solutions and partimus. Both brands work independently, with their own customers and their own focus areas. They are held together by a structure that has grown over the years: two locations, short distances, and a privately owned company that makes its own decisions.
90+
Employees at two locations
2
Locations in East Westphalia and Hesse
15+
Years of development and manufacturing
The brands
Our two brands
primeline solutions and partimus are two independent companies with their own teams, their own customers, and their own identity. One builds hardware, the other operates it.
This division has a practical reason. Those who design a system know best what matters in continuous operation. And those who operate environments know what should be done differently in manufacturing. Both sides talk to each other daily here, without detours through manufacturers, distributors, or external service providers.
For you, this means: You can start with one of the two brands and add the other if it fits. But you don't have to. Both also work completely independently of each other.
primeline solutions
Servers, storage systems, and workstations, developed and built in Bad Oeynhausen. For industry, research, technical procurement, and public sector clients.
To primeline solutions
partimus
Data center, cloud, and IT services from Limburg an der Lahn, with a direct connection to the Frankfurt data hub.
To partimusWhat defines us
Three things that rarely come together
There are many companies in Germany that build servers. There are many that operate data centers. Finding both together, in the same company, with its own manufacturing and its own space, is much rarer. And almost never in a medium-sized, privately owned company.
Three things are particularly important to us.
Manufacturing and operation interlock
Our hardware is created in Bad Oeynhausen, our data center is located in Limburg an der Lahn. When a system from our own manufacturing later runs on our own space, both teams know the technology in detail. Troubleshooting, spare parts, and upgrades are therefore faster and without questions of responsibility.
Short distances and own decisions
core.two does not belong to any corporation or investor. Decisions are made at our two locations, by people you know and can reach. You notice this especially when something needs to happen quickly or a solution does not follow the standard path.
Certified security
Our data center is ISO/IEC 27001:2022 certified and tested by TÜV according to Level 3. Behind this is documented security management, a multi-level access concept, and emergency plans that are practiced.
Our history
How a server manufacturer became a corporate group
It all started in 2010 with a workbench, a few cases, and the conviction that servers can come from Germany. Manufacturing became an IT system house, the IT system house became its own data center, and two separately managed companies became a group. We didn't buy anything in the process. Everything that belongs to core.two today was created by us.
October 2010 — Founding of primeline solutions
The first server and storage systems from our own manufacturing are created in Bad Oeynhausen.
2015 — Founding of primeLine Systemhaus
With the primeLine Systemhaus, the group takes over the ongoing operation of IT environments for the first time. The manufacturer becomes a contact partner for the entire lifecycle.
November 2016 — New building in Bad Oeynhausen
More space for manufacturing, warehouse, and sales. The location where construction still takes place today.
2018 — Founding of primeLine Holding GmbH
The companies, which had been managed separately until then, get a common roof.
2018 — Founding of partimus
The idea of offering data center services on our own data center campus is born.
2022 — The Limburg data center goes live
In Limburg, we open our own data center, certified according to ISO 27001 and tested by TÜV.
2026 — partimus and primeLine Systemhaus grow together
Operations and IT services are now in one hand. Data center, cloud, managed services, and the support of entire IT environments come from one company.
2026 — primeLine Holding GmbH becomes core.two
The corporate group operates as core.two. Two brands, one company, the same people at the same locations.
Locations
Bad Oeynhausen and Limburg an der Lahn
Our two locations are about 300 kilometers apart and have clearly distributed tasks. Construction takes place in East Westphalia, operations in Hesse. In between lies a collaboration that is significantly closer in everyday life than the distance would suggest. Both locations belong to core.two, and people from both brands work at both.
Bad Oeynhausen
Manufacturing and sales primeline solutions, second location partimus
Server, storage, and workstation systems are created here. Development, configuration, assembly, and testing are under one roof, along with sales, service, and the administration of the corporate group. The location is also involved on the network side: one of our network nodes is located here, the other two in Limburg and Frankfurt.
primeLine Solutions GmbH
Zur Bauernwiese 25
32549 Bad Oeynhausen
Phone: +49 5731 8694-0
Limburg an der Lahn
Headquarters of partimus, data center with connection to the Frankfurt data hub
Data center, cloud, and managed services run here. Two server rooms on our own space, monitored around the clock and secured via a multi-level access concept. The short connection to the Frankfurt data hub makes the location interesting for everyone who needs low latencies and German operation together.
partimus GmbH
Amsterdamer Str. 2-6
65552 Limburg an der Lahn
Phone: +49 6431 9452-0
Careers
Working at core.two
At core.two, people who build systems and people who operate them work together. At two locations, in manageable teams, with technology you can touch.
Those who support an environment in Limburg work with hardware from our own manufacturing in Bad Oeynhausen. Those who build a system there know where it will run later and who will take it over. This makes the work more tangible than in many other IT companies, and it ensures that people know each other here across location boundaries.
You can find our open positions here on the site. If nothing fits, but something could still work out? Then just write us.
In-house hardware
Servers, storage, and workstations from our own manufacturing, also for our own infrastructure.
Short decision-making paths
Decisions are made at the locations, not in a corporate headquarters.
Further training
Manufacturer training and certifications are part of the work, not free time.
Apprenticeship
IT specialist for system integration, with permanent employment as the rule.
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More InfoPress
Press information, logos, and contact person
Are you writing about core.two, primeline solutions, or partimus and need material? Here you will find everything you are allowed to use: the logo package with the approved files, our short guide to spelling, and a company text that you can use directly.
If you can't find something, want to request an interview, or need image material from manufacturing and the data center, write to us. We will get back to you shortly.
Download logo package (ZIP)The brands core.two, primeline solutions, and partimus are always written in lowercase, even at the beginning of a sentence. Please use only the files from the logo package, no redraws, screenshots, or your own color variants.
Press contact
Isabell Biesemeier — Head of Marketing
core.two GmbH
Zur Bauernwiese 25
32549 Bad Oeynhausen
Phone: +49 5731 8694-450
Contact form
Company text for copying (Boilerplate)
core.two is a privately managed corporate group based in Bad Oeynhausen. Under the roof of core.two GmbH, the brands primeline solutions (development and manufacturing of server, storage, and workstation systems) and partimus (data center, cloud, and managed services) operate. The group employs more than 90 people at the locations in Bad Oeynhausen and Limburg an der Lahn.
Contact
How can we help?
If you need a quote, you will reach your goal faster with one of our two brands than with us. That's where the people are who can assess your requirements and help you specifically.
Hardware and Systems
primeline solutionsData center, cloud, and operation
partimusDo you have a press inquiry, are you interested in a position, would you like to talk about a partnership, or just don't know exactly who the right contact person is? Then write to us here. We will forward your message and usually get back to you within one business day.
Preferably directly by email: info@coretwo.de