What departments does SIDN have?

SIDN has employees across 14 departments including Engineering, Information Security, Finance, Business, Military & Protective Services.

What is the largest department at SIDN?

The largest department at SIDN is Engineering with 6 employees.

Where are SIDN employees located globally?

SIDN has employees across 1 continents and 2 countries including Netherlands, Spain.

How has SIDN's team size changed over time?

SIDN's team has decreased from approximately 121 to 117 employees based on available data.

SIDN Employee Directory

Q: Who are SIDN's key employees and leadership?

SIDN's key employees include: Executive Assistant To Ceo: A. J., Ceo: R. M., Cfo: L. V. D. B., Chief Technology Officer: L. B., Chief Information Security Officer (ciso): F. S..

Technology, Information and InternetGelderland, Netherlands51-200 Employees

SIDN is a technology and internet infrastructure organization based in Arnhem, Gelderland, Netherlands. It operates the .nl domain by registering names and ensuring they resolve for users worldwide, handling a vast daily volume of search queries and supporting reliable email delivery. The organization develops services and solutions built on secure domains and digital identities to support safer and more convenient online life.

Its customers include domain registrants and internet users around the world, with a primary focus on the stability and accessibility of the .nl ecosystem and its DNS. SIDN Labs conducts research to devise new technologies and systems that improve the resilience and security of the .nl domain, the DNS, and broader internet infrastructure. Through the SIDN Fund, the organization supports social initiatives aimed at promoting internet use and addressing related negative effects.

SIDN Global Highlights

Europe
115

Netherlands
114
Spain
1

SIDN's Leadership

R. M.
Ceo
Mobile Phone
Email
L. V. D. B.
Cfo
Mobile Phone
Email
L. B.
Chief Technology Officer
Mobile Phone
Email
F. S.
Chief Information Security Officer (ciso)
Mobile Phone
Email
A. J.
Executive Assistant To Ceo
Mobile Phone
Email
C. V. D. W.
Medior Financial Controller
Mobile Phone
Email
M. V. O.
Business Controller
Mobile Phone
Email
G. K.
Manager Transitie .Nl, It & Security
Mobile Phone
Email

SIDN Employee Metrics

100%

50%

0%

2026

2025

Engineering
Information Security
Product Management
Accounting
Administrative
Other

Contact profiles from SIDN

Name

Title

Contact Info

Location

Last Update

L. B.
Chief Technology Officer
Mobile Phone
Email
Oct 21, 2024
F. S.
Chief Information Security Officer (ciso)
Mobile Phone
Email
NetherlandsUtrecht
Mar 24, 2026
A. J.
Executive Assistant To Ceo
Mobile Phone
Email
NetherlandsGelderland
May 31, 2026
L. V. D. B.
Cfo
Mobile Phone
Email
NetherlandsGelderland
Apr 17, 2026
R. M.
Ceo
Mobile Phone
Email
Netherlands
Feb 26, 2026
C. V. D. W.
Medior Financial Controller
Mobile Phone
Email
NetherlandsGelderland
Feb 10, 2026
M. V. O.
Business Controller
Mobile Phone
Email
Apr 15, 2026
G. K.
Manager Transitie .Nl, It & Security
Mobile Phone
Email
NetherlandsGelderland
May 04, 2026
M. H.
Marketing Manager & Product Owner
Mobile Phone
Email
NetherlandsGelderland
Apr 16, 2026
P. P.
Lead Product Owner/ Lead Product Manager - Registry Services
Mobile Phone
Email
NetherlandsGelderland Province
Apr 16, 2026

Frequently Asked Questions

What is SIDN known for?

SIDN was founded in 1996 operates in the Technology, Information and Internet industry. The company's main headquarters is located in 501 Meander Arnhem, Gelderland 6825 md Netherlands; you can contact the main corporate office by phone at

+31-26-352-****

. Explore SIDN's company overview page for more information.

What is SIDN's most common email format?

SIDN employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more SIDN email formats with LeadIQ.

How many employees does SIDN have currently?

SIDN has approximately 136 employees as of May 2026. These team members are located across 1 continents, including Europe.

Who are SIDN's key employees and leadership?

As of May 2026, SIDN's key employees include:

Ceo: R. M.
Cfo: L. V. D. B.
Chief Technology Officer: L. B.
Chief Information Security Officer (ciso): F. S.
Executive Assistant To Ceo: A. J.

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SIDN Employee Directory

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