Partners
Our partners are people and companies who inspire us. Because they champion issues that are important to us. And because they do so in a way that we like. We maintain an intensive exchange with our partners. Because together we can achieve more.
abusix - detecting and stopping abuse
abusix takes a leading position in abuse detection and handling. The company’s email block lists are considered unrivaled in terms of efficiency and minimization of false positives. abusix detects technical abuse emanating from a system at an especially early stage. sys4 interprets these observations and uses them for countermeasures. We provide abusix with feedback on the lessons learned in the process.
NetBox Labs - Open Source IP-Address Management
NetBox, IP-Address management software, very pleasantly changed the established IPAM market. Our commitment to NetBox goes back to the very early years when NetBox was an insiders' tip and we are very pleased to see it has become the new standard for IPAMs. Well deserved!
But that didn’t come by surprise. NetBox is versatile, it blends nicely into highly automated platforms and its developer team is open for ideas and fast when its important to react. This said the natural next step for us was to join NetBox as partner - they fit and we engage!
If you’re looking for consulting or need someone to run your service don’t hesitate to contact us. Likewise if you’re looking for a support-team with years (!) of NetBox experience - we’re here for you. And… if what you actually want is a DDI (DNS, DHCP, IPAM) you probably really, really want to talk to us - NetBox' DNS-plugin is being developed and maintained by one of your colleagues.
NLNet Labs - innovative and modern DNS software
Open Netlabs is considered an innovative pioneer in the development of DNS servers and resolvers, as well as DHCP products. With its Unbound DNS resolver, the Dutch company has set a new standard. sys4 offers support for the implementation and operation of Open Netlabs' products. In doing so, we gain experience that is useful to Open Netlabs for their further development.
Customers
We choose our customers carefully. Because we support them with everything that we do. Shared ethical principles and cooperation on an equal footing are crucial success factors for sys4. We mostly work in sensitive areas of corporate IT. The following names stand as examples to illustrate the spectrum of our customers. They have given us permission to use their names here.
Unitymedia
A well-known cable network operator based in Cologne. Leading in customer security. Part of the Vodafone Group since 2020.
Landesamt für Steuern Niedersachsen (State Tax Authority of Lower Saxony)
About 12,000 employees currently work for the LStN and its subordinate agencies. The annual tax revenue is over 30 billion Euros.
State of Baden-Württemberg
The German federal state with the highest exports, the most patents per capita and the highest R&D spending in Germany.
Stadtsparkasse München (Munich City Savings Bank)
The fourth-largest Sparkasse Bank out of a total of 376 in Germany in 2020, measured according to total assets and number of employees.
DATEV
A well-known IT service provider with more than 8000 employees. DATEV offers its customers more than 200 PC programs, cloud services, and online applications.
Kommunales Rechenzentrum Niederrhein (Lower Rhine Municipal Data Center)
The Kommunales Rechenzentrum Niederrhein (KRZN) is an IT service provider for 45 municipalities in NRW. Among other things, it operates the Logineo platform for the 2.3 million pupils and around 200,000 teachers in North Rhine-Westphalia.