Data Centers

Netstream's ISO 27001 recertification with Kertos

Netstream didn’t just recertify — they evolved. By consolidating tools, centralizing their documentation, and improving ISMS traceability with Kertos, they turned a complex recertification process into a streamlined and scalable security foundation. With praise from auditors and lower compliance costs, Netstream future-proofed their ISO 27001 strategy without compromising standards.

Netstream's ISO 27001 recertification with Kertos
1
Successfully Passed Audit

By employing Kertos platform, Netstream was able to replace legacy systems and processes.

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Legacy Processes Replaced

By employing Kertos platform, Netstream was able to replace legacy systems and processes.

30 %
Cost Reduction

By replacing traditional consultancy with Kertos, Netstream was able to save more than 30 % expenses.

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About Netstream

Netstream AG is a leading Swiss data center operator specializing in secure infrastructure services. Founded in 1998, Netstream offers secure yet simple IT solutions. With a network of four data centers in the Greater Zurich area, the company flexibly implements complex projects for customers such as Joyn (Seven.One Entertainment Group), DQ Solutions, Sunrise, Migros, and many others.

The Challenge

Already ISO 27001 certified, Netstream was preparing for their upcoming recertification. With a system already in place, managing risk assessments, documentation, and evidence across multiple tools, systems, and external consulting support had become increasingly complex and resource-intensive.

They sought to:

  • Improve traceability and structure across the ISMS
  • Consolidate tools and reduce external dependencies
  • Explore automation to reduce manual overhead
  • Align with the updated ISO 27001 standard

The goal was not to replace an inadequate system, but to streamline and future-proof their certification process through better usability and efficiency.

The Solution

Netstream selected Kertos to support their transition — not just for recertification, but to centralize and simplify their information security management going forward.

While the actual certification timeline remained consistent with previous years, the internal process became significantly more structured, transparent, and traceable.

Using Kertos, Netstream was able to:

  • Map and migrate their existing documentation into a single platform
  • Improve visibility across risk management and ISMS processes
  • Reduce tool complexity by combining systems, audit tracking, and consulting into one
  • Prepare for recertification efficiently with clearer workflows

Kertos’ customer success team supported them throughout, and their external auditor praised the platform’s clarity, documentation quality, and well-structured setup.

The Results

By working with Kertos, Netstream achieved not only a successful ISO 27001 recertification but also a measurable improvement in process clarity and system integration.

Rather than reducing overall effort, the key win was structural improvement and a clearer audit trail — while also reducing overall compliance costs by consolidating tooling and reducing external consulting needs.

  • Successful ISO 27001 recertification with full audit approval
  • Streamlined ISMS structure and improved traceability
  • Positive auditor feedback on clarity and platform organization
  • Lowered compliance costs through system consolidation
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