Computer and Network Security in Netherlands

Dawnguard

Dawnguard is on a mission to redefine cybersecurity with a platform that enables true shift-left security, from day zero to day

11 to 50 staff

Itsolutionbydick

11 to 50 staff

Defion Security

DEFION Security is an independent, full-service cybersecurity specialist with offices in the Netherlands and Spain and a team of 100+ experts. From our Active Defense approach, we help our clients: • Reduce cyber risk exposure • Comply with complex cybersecurity regulations, like NIS2, DORA and CRA • Strengthen overall resilience and business continuity We connect prevention, detection, and response into one integrated security strategy – delivering not just technical expertise, but strategic advisory at the executive level. Our guidance enables leadership to align cybersecurity with business priorities and make informed investment decisions. Through DEFION Research Labs, we: • Discover new vulnerabilities • Dissect emerging threats • Collaborate with public partners and positively impact society This unique blend of frontline expertise and applied research ensures our clients are protected today and prepared for tomorrow. Learn more at defion.security

51 to 200 staff

Beterbeschermd

1 to 10 staff

Cyberthreat

1 to 10 staff

Dynomic B.V

11 to 50 staff

Njk Information Security

1 to 10 staff

Upmux Security

1 to 10 staff

Intro It Security

Intro IT Security is a ICT security company highly specialised in identity management, authentication and encryption. We work for large and medium corporations, government and institutions. We work very close with Sectory, a managed services security provider.

1 to 10 staff

Openvas B.V

The World’s Most Widely Used Open-Source Vulnerability Management System

1 to 10 staff

Secupulse

SecuPulse B.V is a next-generation cybersecurity company with a clear vision: making security affordable and accessible for every business, regardless of size. The company’s approach is built on three pillars: industry-specific solutions, Cybersecurity-as-a-Service, and trusted product reselling. It provides industry-aligned, compliance-ready cybersecurity packages that clients can adopt easily—starting with baseline protection and scaling to advanced capabilities. The Cybersecurity-as-a-Service portfolio includes Penetration Testing as a Service (manual and automated), GRC as a Service for regulatory compliance, Attack Surface Monitoring as a Service, Managed Detection & Response, and SOC-as-a-Service. For enterprises with more mature needs, it offers a full range of enterprise-grade products as a trusted reseller of leading technologies. Key differentiators include: Freemium model | Self-service options | Tech-layered expertise | Affordability.

11 to 50 staff

Sometime

1 to 10 staff

Vallem

Vallem does not see itself merely as a cybersecurity company, but as an integrated partner within your organization. Our goal is to ensure a safe, secure environment in which your business operations can continue uninterrupted, 24/7. We respond immediately to incidents and ensure threats are dealt with efficiently. At Vallem, we offer a holistic cybersecurity solution that covers all facets of digital protection - premium protection in one simple and affordable package. Our approach combines prevention, monitoring, response, insurance, and simplification into one seamless service. We implement advanced technologies and strategies to proactively prevent threats, continuously monitor all networks and systems to detect potential risks instantly, and deliver rapid, effective incident response to minimize impact. We also provide insurance solutions that safeguard you financially against cyber incidents, while ensuring that complex cybersecurity measures are simplified and made accessible for your organization. We remove the complexity often associated with cybersecurity, allowing you to focus on your core activities. Vallem speaks with a clear and straightforward voice, making cybersecurity accessible without technical jargon. It is friendly and conversational, built on trust, and guides the way toward clear, safe, and innovative solutions. Our voice makes complex topics easy to understand so that everyone feels confident and well-informed. Will you take the first step today?

1 to 10 staff

Vizority Hf

Protect your organization with daily, actionable security training — simple, practical, and built by leaders in security and IT. We deliver consistent, practical security training for everyone in your organization.

1 to 10 staff

Xmon

At X-mon, we are dedicated to transforming cybersecurity through innovative awareness and prevention strategies. Our approach is grounded in the belief that understanding how hackers think is the key to effective defense. We empower organizations to anticipate and mitigate threats before they manifest. With extensive experience in ethical hacking and a deep passion for securing the digital world, we deliver engaging presentations and hands-on training that equip teams with the skills needed to protect their systems from cyber threats. Next to that we give advice and security intel, we are able to start the conversation on both business and technical level to improve your organisation on it's security. Our mission is to build a safer, a more secure digital environment for all.

1 to 10 staff

Awaretrain International

Awaretrain empowers organisations create a security culture in which employees work digitally secure and information-aware. In a fun, accessible and ongoing way. Activate the human firewall and protect your organisation against (information) security risks! Awaretrain’s learning platform allows you to create awareness and behavioural change in the field of information security, cybersecurity, and privacy. You keep control to create security awareness programmes and phishing attack simulations that perfectly fit your organisation’s needs. Awaretrain’s training courses are informative, relevant, and engaging. They make employees feel engaged and motivated to improve their information security knowledge and skills. Continuously develop security awareness with 60+ interactive trainings, games and tests. Easily deploy and manage programmes tailored to your organisation. Effectively reach employees with content in 9 languages. Keep employees alert with the phishing simulation tool. Increase involvement by applying your own house style. Create a (digitally) safe and information-aware corporate culture in a scalable way. Comply with standards such as ISO 27001.

11 to 50 staff

Corenetz

At CoreNetz IT Services, we specialize in delivering reliable IT support and network solutions tailored to your business needs. Based in Frankfurt am Main, we provide 1st, 2nd, and 3rd level IT support, network services, and on-site expertise across Germany, the Netherlands, and surrounding regions. What sets us apart is our flexibility and responsiveness – whether it’s ongoing managed IT support, project-based assistance, or urgent on-site troubleshooting, we adapt quickly to keep your business running. We also collaborate with large IT providers, MSPs, and enterprises, acting as a trusted local partner for rollouts, implementations, and infrastructure support. At CoreNetz, we stand out because of the way we deliver IT support: On-Site Support, Nationwide – Fast and reliable local assistance wherever your business operates in Germany, the Netherlands, or nearby regions. Flexible & Scalable Services – From ongoing managed IT support to short-term, project-based help, our solutions adapt seamlessly to your needs. Trusted Partnerships – Working hand in hand with large IT providers, MSPs, and enterprises as a dependable local partner for rollouts, implementations, and troubleshooting. Hands-On Expertise – From cabling and hardware setup at construction sites to advanced IT consulting, we handle the technical details that keep your business running. Customer-First Approach – We know downtime costs money. That’s why we prioritize rapid response times and practical, results-driven solutions. With hands-on expertise, strong partnerships, and a customer-first mindset, CoreNetz ensures your IT systems remain secure, efficient, and ready for the future.

11 to 50 staff

Nullbyte

Nullbyte B.V. bestaat uit een team van gepassioneerde offensieve cybersecurity professionals met 10+ jaar ervaring als ethisch hacker. We hebben ervaring binnen (internationale) organisaties met een omvang tot medewerkers en binnen uiteenlopende sectoren- Banking - Gezondheidszorg - Overheid - Maakindustrie - Familiebedrijven - Media en communicatie - Transport en logistiek Transparantie en kwaliteit vormen de kern van onze dienstverlening. We geloven in een praktische aanpak, zijn flexibel en hanteren korte lijntjes. Binnen al onze onderzoeken werken we met gerichte doelen. Door ons uitsluitend te specialiseren in offensieve security zijn we onafhankelijk en kunnen we onze hoge standaarden waarborgen. We zetten ons in voor het verbeteren van de digitale beveiliging van organisaties.

1 to 10 staff

Whisper

Whisper is a B2B cybersecurity solution providing unparalleled, real-time visibility into internet infrastructure. Powered by the largest internet knowledge graph ever created, mapping over 45 billion data points, Whisper accelerates threat prediction, eliminates false positives, and enhances AI-driven security operations.

1 to 10 staff

Vansi

Na jarenlange ervaring bij diverse bedrijven – van MKB tot grote enterprises – werd één ding duidelijk: kleinere organisaties hebben vaak moeite om toegang te krijgen tot hoogwaardig en onafhankelijk advies op het gebied van netwerkbeveiliging en IT-infrastructuur. Met diepgaande kennis van en ervaring met een breed scala aan vendoren en producten, zagen wij de kans om een verschil te maken. Grote bedrijven hebben vaak uitgebreide IT-afdelingen en consultants tot hun beschikking, maar kleinere bedrijven moeten het doen met beperkte middelen en generieke oplossingen die niet altijd passen bij hun specifieke behoeften. Daarom hebben wij onze onderneming opgericht, met als missie om juist deze bedrijven te voorzien van deskundig en praktisch advies. Wij helpen organisaties met maatwerkoplossingen die aansluiten bij hun unieke uitdagingen, zonder gebonden te zijn aan specifieke leveranciers. Zo zorgen we ervoor dat technologie geen struikelblok, maar een solide basis is voor groei en succes. De naam VANSI is niet zomaar uit de lucht gegrepen. Het is een acroniem van Vendor Agnostic Network Security Infrastructure! Benieuwd wat wij voor uw organisatie kunnen betekenen? Neem contact met ons op voor een vrijblijvend gesprek.

1 to 10 staff

Securehabits

SecureHabits is recognized as a trusted application security partner for European industrial manufacturers building connected and software-driven products. The company helps development teams move beyond ad-hoc security measures by embedding secure-by-design practices directly into their engineering workflows. What sets SecureHabits apart is its deep expertise in building sustainable application security programs that align business goals, engineering realities, and regulatory demands. By translating complex requirements such as NIS2 and the Cyber Resilience Act (CRA) into practical, actionable guidance, SecureHabits enables manufacturers to deliver secure, compliant products without slowing innovation.

11 to 50 staff

Taxi Van Der Meer

1 to 10 staff

Digiweerbaar.Nl

Bij Digiweerbaar maken we digitale veiligheid eenvoudig en toegankelijk voor MKB-ondernemers. Geen ingewikkelde vaktaal, maar heldere uitleg en praktische oplossingen die direct toepasbaar zijn. Wij zorgen dat jouw bedrijf beschermd is tegen cyberdreigingen, zodat je kunt focussen op wat echt belangrijk is: ondernemen. Samen bouwen we aan een veilige digitale toekomst.

1 to 10 staff

Quli -Koraal

1 to 10 staff