Tesorion

Tesorion

Nieuwegein, Netherlands

Managed SecurityDetection & ResponsePenetration TestingOffensive Security24/7 SOC
51-200 employeesServes Critical Infrastructure
Profile last updated: August 24, 2026

About

Tesorion is a cybersecurity company based in Nieuwegein, Netherlands working in managed security, detection & response, penetration testing +13 more.

Tesorion is a Dutch multidisciplinary cybersecurity company with around 140 cybersecurity professionals. It provides continuous monitoring and detection of cyber threats, 24/7 managed detection and response through its Security Operations Center, incident response via its Computer Emergency Response Team, offensive security (penetration testing, red teaming and social engineering), security advisory including CISO-as-a-Service and crisis simulations, managed security services for infrastructure and secure access, and OT security and resilience for industrial and critical infrastructure organisations. Its own products include the Immunity network access control solution. Through subsidiary Compumatica Secure Networks B.V., Tesorion also develops cryptography, network security and email encryption products, including a data diode. Tesorion is ISO 27001 and NEN 7510 certified and is a member of Cyberveilig Nederland. The company operates offices in Nieuwegein, Enschede and Uden.

Location

Nieuwegein, Netherlands

Employees

51-200

Focus areas

MDRSOCPenetration TestingRed TeamingIncident ResponseOT SecurityNetwork Access ControlCISO AdvisorySecurity AwarenessThreat Intelligence

Languages

NLEN

Services & products

Security domains

Managed SecurityDetection & ResponsePenetration TestingOffensive SecurityThreat IntelligenceIncident ResponseDigital ForensicsEndpoint SecurityNetwork SecurityIdentity & AccessCloud SecurityApplication SecurityOT/ICS SecurityGRC & ComplianceSecurity AwarenessEmail Security

How they deliver

Managed ServicesProfessional ServicesConsultingSoftwareTraining

Operations

Runs a 24/7 security operations centre

Products

Tesorion Immunity

Network Access Control

Combines network access control with network security, offering device visibility, automated detection and isolation of infected devices, and agentless asset discovery.

Compumatica MagiCtwin Data Diode

Data diode

Physically enforced one-way data transfer from OT to IT or SOC without return channel.

Security Information and Event Management platform

SIEM

Brings together information from multiple systems to detect, analyse and respond to potential threats.

Customers

Critical Infrastructure

Industries served

ManufacturingFoodEnergyHealthcareConstructionFinancePublic Sector

Compliance & partners

Compliance frameworks

NIS2DORAISO 27001NEN 7510BIO

Technology partners

MicrosoftVectra AIPalo Alto Networks

Credentials & affiliations

Certifications

ISO 27001

NEN 7510

Industry memberships

Cyberveilig Nederland

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