Insights

Digital Infrastructure Strength SIDN's core business revolves around maintaining and securing the .nl domain, directing over 1.5 billion search queries daily. This focus on internet stability and security positions it as a key player in digital infrastructure, creating opportunities for cybersecurity, domain security solutions, and DNS management services.

Innovative Tech Adoption With a tech stack that includes Kubernetes, Red Hat, Cisco, and advanced security measures like X-XSS-Protection and reCAPTCHA, SIDN demonstrates a strong commitment to leveraging cutting-edge technologies. This presents sales possibilities in cloud computing, security tools, and infrastructure modernization solutions.

Research & Development Focus SIDN Labs actively researches and develops innovative solutions to enhance domain stability and internet security, raising potential engagement opportunities around emerging internet technologies like DNSSEC, blockchain-based digital identities, and advanced cybersecurity services tailored to internet registry needs.

Social Responsibility & Sustainability The company's involvement in social initiatives and environmental efforts through partnerships in bioremediation and ecological restoration highlight an openness to sustainable and social impact collaborations, which can be avenues for sustainable technology solutions, green computing, and environmental compliance services.

Growth in Critical Minerals Recent expansions and high-grade rare earth element discoveries in Sidney Resources’ Idaho project point to significant growth potential in critical minerals. This sector offers opportunities for suppliers of mining equipment, environmental remediation, and processing technologies aimed at the critical minerals market.

Similar companies to SIDN

SIDN Tech Stack

SIDN uses 8 technology products and services including VigLink, Ansible, Kubernetes, and more. Explore SIDN's tech stack below.

  • VigLink
    Advertising Networks
  • Ansible
    Configuration Management
  • Kubernetes
    Containerization
  • Cisco
    Network Hardware
  • LinkedIn
    Online Community Software
  • Red Hat
    Operating Systems
  • X-XSS-Protection
    Security
  • reCAPTCHA
    Security

Media & News

SIDN's Email Address Formats

SIDN uses at least 1 format(s):
SIDN Email FormatsExamplePercentage
First.Last@sidn.nlJohn.Doe@sidn.nl
80%
FLast@sidn.nlJDoe@sidn.nl
10%
First.MiddleLast@sidn.nlJohn.MichaelDoe@sidn.nl
6%
First@sidn.nlJohn@sidn.nl
4%

Frequently Asked Questions

What is SIDN's phone number?

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You can contact SIDN's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is SIDN's stock symbol?

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SIDN is a publicly traded company; the company's stock symbol is SDRC.

What is SIDN's official website and social media links?

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SIDN's official website is sidn.nl and has social profiles on LinkedIn.

What is SIDN's NAICS code?

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SIDN's NAICS code is 5415 - Computer Systems Design and Related Services.

How many employees does SIDN have currently?

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As of December 2025, SIDN has approximately 134 employees across 1 continents, including Europe. Key team members include Ceo: R. M.Cfo: L. V. D. B.Chief Technology Officer: L. B.. Explore SIDN's employee directory with LeadIQ.

What industry does SIDN belong to?

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SIDN operates in the Technology, Information and Internet industry.

What technology does SIDN use?

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SIDN's tech stack includes VigLinkAnsibleKubernetesCiscoLinkedInRed HatX-XSS-ProtectionreCAPTCHA.

What is SIDN's email format?

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SIDN's email format typically follows the pattern of First.Last@sidn.nl. Find more SIDN email formats with LeadIQ.

When was SIDN founded?

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SIDN was founded in 1996.

SIDN

Technology, Information and InternetGelderland, Netherlands51-200 Employees

When you type a .nl domain name into your browser, we direct you to the right website. When you send an e-mail to a .nl address, we make sure that it can be delivered to the right mailbox. And the functional stability of the .nl domain is down to us. We register .nl domain names and ensure that the 5.8 million-plus registered names can be reached by internet users around the world. That involves processing more than 1.5 billion search queries every day. We also make digital living easier and safer by developing and delivering services and solutions based on innovative, secure domains and digital identities. Our research team SIDN Labs supports those activities by devising new technologies and systems that increase the stability and security of .nl, the DNS and the internet infrastructure. We are also directly or indirectly (through SIDN Fund) closely involved in numerous social initiatives designed to promote use of the internet or address its unwanted side-effects. In short, we are dedicated to secure and convenient digital living.

More information:

Company website 
http://www.sidn.nl

Working at website
http://www.werkenbijsidn.nl

Innovation platform SIDN
http://www.sidnlabs.nl

Knowledge platform DNSSEC
http://www.dnssec.nl

Twitter
@SIDN
https://twitter.com/SIDN

Section iconCompany Overview

Phone number
Website
sidn.nl
Stock Symbol
SDRC
NAICS Code
5415 - Computer Systems Design and Related Services
Founded
1996
Employees
51-200

Section iconFunding & Financials

  • $1M

    SIDN's revenue is estimated to be in the range of $1M

Section iconFunding & Financials

  • $1M

    SIDN's revenue is estimated to be in the range of $1M

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