Our origins

ISL Internet Sicherheitslösungen GmbH

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

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 vendor-independent and end-to-end security concepts with its own 24/7 SOC service and IDENTITY as a Service as a comprehensive CIAM & IAM solution.

Our many years of experience, our commitment to advanced software solutions and a strong partner network are the key elements for the outstanding IT resilience of our customers and at the same time the proof of our success.

Service area


Service area

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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