Software is the foundation of modern organisations. That's why we build digital solutions that truly matter. Four Digits develops, modernises and maintains business-critical software organisations can rely on. From custom applications and digital platforms to AI solutions, data platforms and system integrations. With more than twenty years of expertise in Python, Django and open technologies, we build software that remains secure, scalable and maintainable. Our ISO 9001, ISO 27001 and NEN 7510 certifications reflect the way we work: focused on quality, information security and long-term continuity. We believe in long-term partnerships. That's why we stay involved throughout the entire software lifecycle, from strategy and development to maintenance, continuous improvement and support. Build what matters.
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Four Digits Questions
The Four Digits annual revenue was $4 million in 2026.
Maarten Kling is the CEO of Four Digits.
13 people are employed at Four Digits.
Four Digits is based in Arnhem, Gelderland.
The NAICS codes for Four Digits are [45, 45321, 453210, 453, 4532].
The SIC codes for Four Digits are [594, 59].
Top Four Digits Employees
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Maarten Kling
Chief Executive Officer at Four Digits
Arnhem, GE, NL31 -
Franklin Kingma
Software Engineer and Partner at Four Digits
Arnhem, GE, NL12 -
Ruben Hesselink
Python Developer at Four Digits
Ochten, GE, NL1 -
Jonno Wagt
Project Manager at Four Digits
Amersfoort, UT, NL1 -
21
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Siemen van Straaten
Operationeel Manager at Four Digits
Arnhem, GE, NL2 -
Mike Overkamp
AI Engineer at Four Digits
Arnhem, GE, NL2 -
Coen van der Kamp
Consultant and Developer at Four Digits
Arnhem, GE, NL1 -
Geert-Jan van Den Bosch
Developer at Four Digits
Nijmegen, GE, NL1 -
Nick Ziggers
Software Developer at Four Digits
Zelhem, GE, NL1
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