Top Cybersecurity Companies in South Holland 2026 Rankings & 103 Client Reviews for 11 Service Providers

We have a list of 11 cybersecurity companies in South Holland. This list contains matching case studies and references, 103 customer reviews, hourly rates, team size and much more. Use the appropriate filter options to find the best Cybersecurity Company for your business requirements.

  • Custom software development company Andersen is an international custom software development company with a strong focus on technology-intensive industries. Since its foundation in 2007, the company has opened more than 16 development centers and 16 sales offices around the world. More than 3700 highly skilled specialists work on the development, customization and integration of enterprise IT solutions, web and mobile application... Read More

    1,001-5,000
    > €10,000
    €25 - €49
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List of the Best Cyber Security Companies in South Holland

  • 40% Cyber Security

    2-10
    > €25,000
    €50 - €74
    Rotterdam, South Holland
    Information Technology Services in Rotterdam, NL AXS ict is a full-service IT partner focused on coworking communities and business hubs. With locations in Rotterdam, The Hague, Delft, and Haarlem, they’re always nearby. They build dependable, secure, and scalable IT foundations for shared buildings where uptime matters. From internet and WiFi... Read More
    Website
  • 15% Cyber Security

    Attack Detection & Response Network Security Penetration Tests
    51-200
    > €50,000
    €50 - €74
    Rotterdam, South Holland + 2
    Unlocking the Future of Digital Service Delivery At BrightMarbles Group, we’re driven by engineering know-how at the highest level. With more than 160 specialists distributed across five key locations worldwide, we apply deep, proven experience to every engagement—typically averaging over seven years of expertise per team member. Our goal is st... Read More
    Website
  • 60% Cyber Security

    201-500
    > €200
    Rotterdam, South Holland + 2
    Smart decisions. Lasting value. No matter where you’re starting from, launching or expanding cross-border operations calls for careful planning and current insight into the local market. Crowe Peak helps organizations dealing with intricate, fast-evolving rules—across the Netherlands and beyond. Our team offers practical guidan... Read More
    Website
  • 15% Cyber Security

    Digital Forensics
    51-200
    > €1,000
    €100 - €149
    Zoetermeer, South Holland
    Involved, Builders & Collaborators Who are we? Fortezza Group is a Managed Service Provider (MSP) that helps Dutch SMEs with their next stage of growth. Our headquarters are based in Zoetermeer, and our second location is in Leek (Groningen). We serve the whole of the Netherlands with 90+ professionals across 6 specialisms. Why F... Read More
    Website
  • 35% Cyber Security

    2-10
    > €1,000
    < €25
    Dordrecht, South Holland
    Your partner for cyber security and ICT management We focus on network administration and cybersecurity. From our base in Dordrecht, we work hand in hand with a tight-knit, motivated team to support our customers. Building lasting customer relationships—and offering reliable, personal assistance—drives how we operate every day. We’re ready to go... Read More
    Website
  • 25% Cyber Security

    Digital Forensics Attack Detection & Response
    2-10
    > €1,000
    < €25
    Rotterdam, South Holland
    Management consultancy Tetr & Aeder offers consulting and implementation support to organizations in both for-profit and mission-driven service sectors. By identifying and enabling digital growth opportunities, we deliver complete, end-to-end solutions that strengthen how services are reached and how efficiently they r... Read More
    Website
  • 20% Cyber Security

    Digital Forensics Attack Detection & Response
    2-10
    €50 - €74
    Rotterdam, South Holland + 1
    Challenging The Ordinary. High-Quality Software, Unrivaled Security—Delivered. We’re a full-service software and cybersecurity team that supports every step of building a digital product, from planning through deployment. It may be a bit of a simplified tagline, but it’s easier to take in than an endless catalog of creden... Read More
    Website
  • 60% Cyber Security

    2-10
    > €10,000
    < €25
    Rotterdam, South Holland + 2
    One Provider For All Your InfoSec Needs Q-Sec enables organizations to manage dependable security operations without the burden of building an in-house team from scratch. We address common challenges—limited security visibility, sluggish incident handling, and hurdles in meeting compliance obligations—by providing a 24/7 SOC as a Servi... Read More
    Website
  • We will find the ideal provider for you! Receive top offers individually selected for you free of charge.
    • 1. Fill in the form Let us know your requirements and the recipient of the offers.
    • 2. Receive offers Receive 3-5 top offers, individually selected for you.
    • 3. Non-binding & free You decide whether and with whom you start the project.

    Sarah Volkmann - talnt.de GmbH
    Sarah Volkmann | talnt.de GmbH
    "We received top offers from service providers that matched our budget quickly and easily!"
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  • 15% Cyber Security

    Digital Forensics Attack Detection & Response Network Security Penetration Tests
    51-200
    > €10,000
    €150 - €199
    Oegstgeest, South Holland + 3
    IT Services: Networking, Data Center, and Security Insoft Services is a global organization that helps customers and partners access the know-how and technical capabilities required to succeed with digital transformation. Software-Defined Networking, next-generation automation for enterprise and wide-area networks, designed to support the shift... Read More
    Website
  • 10% Cyber Security

    51-200
    > €25,000
    €25 - €49
    Leiden, South Holland
    Mobile And Web Application Development APPVIN is a highly recognized app development firm delivering end-to-end mobile services worldwide. Since 2014, we’ve been guided by a straightforward insight: the world has gone mobile. How people discover companies, interact with brands, and make purchases—or search for information and share th... Read More
    Website
  • 20% Cyber Security

    Attack Detection & Response Network Security
    2-10
    > €10,000
    €50 - €74
    Rotterdam, South Holland
    IT Managed Services, Cybersecurity, Cloud KMayer IT Services delivers custom technology solutions that strengthen your infrastructure, raise your security posture, and improve day-to-day business performance. What we do: - IT infrastructure management - Cloud services - Cybersecurity & information security - 24/7 maintenance & support... Read More
    Website

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