About us

IT security made in Germany – since 1999

ISL Internet Sicherheitslösungen GmbH, based in Bochum, has been developing innovative and future-proof IT security solutions since its foundation in 1999. As a leading German software manufacturer in the field of IT security, particularly network access control (NAC), we support our customers in meeting the ever-growing challenges of the digital and regulatory environment.

More than 25 years of experience

More than two decades of expertise in network security – with industry knowledge.

Bochum location

Firmly rooted in the Ruhr region, nationally renowned – with a personal connection to our customers.

Expertise from a single source

Consulting, development, and operation under one roof—for end-to-end security.

Innovative & future-oriented

Agile processes and technical development in collaboration with our European technology partners.

Long-term partnerships

Large partner network of trained and certified sales partners in the DACH region.

Solutions that adapt

Our developments are tailored to the specific requirements of our customers and partners – flexible, practical, and future-proof.

Solutions

In addition to our proprietary solutions ARP-GUARD and CLIENT-GUARD, which stand for comprehensive network security and endpoint compliance, our portfolio includes other security services such as our security operations platform COCKPIT for manufacturer-independent and end-to-end security concepts with our own 24/7 SOC service and IDENTITY as a Service as a comprehensive CIAM & IAM solution.

Mehr erfahren

Discover how companies across a wide range of industries are using our IT security solutions to protect their networks and future-proof their businesses.

ReferencesReferences

Our sales partners are important ambassadors for our solutions—with their combined expertise and regional proximity, they bring IT security to companies of all sizes.

Sales partnersSales partners

Together with strong technology partners, we develop solutions that promote independence, security, and innovation in the digital space.

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ARP-GUARD service area

If you are already an ARP-GUARD partner, you can access your personal service area here.

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Would you like to make the most of the advantages of our solution and complete your “Network Security” portfolio? 

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