Time for a cybersecurity operator

Flexible CISO

Cybersecurity and an appropriate cybersecurity policy are dependent on many factors, such as the size of your organization, the processes and the extent to which your data has to be protected against loss. Another factor is the continuity of your business. Despite this, it may not be feasible to employ your own CISO and that is why Tesorion offers CISO as a Service. Do you want to know more?

Tesorion uses your personal data to send out requested information and possibly for contact by telephone and for marketing and sales purposes. You can change your preferences whenever you want. Read our privacy policy for more information.

Tesorion increases cyber resilience

We are focused 24/7 on making and keeping the Netherlands safe, and our core values play an essential role in this respect.

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We are there 24/7 to keep your organization safe.


We continually improving our services thanks to our 360 degree approach.


We collaborate intensively to achieve the best result and relationship.

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We believe in our transparent approach and clear reporting.

We offer protection to

Allow us to introduce ourselves. We are Tesorion.

Tesorion is the largest, 100% Dutch, independent cybersecurity service provider. We combat cybercrime and minimize operational risks for businesses. Tesorion protects your organization 24/7 thanks to our technology and 180 experts.

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