SIENN helps hundreds of organizations worldwide with smart, efficient, and powerful solutions to enable their online success. We do this through our range of specialized services: Data Connectivity Unlock, centralize, enrich, and connect data to drive digital growth. Business Automation Provide employees, customers, and/or suppliers with distinctive functionalities and turn your data into actionable insights. Team as a Service Accelerate your project with our professional teams. Development We design, develop, deliver, and support mission-critical applications for your organization. Strategy Together with us, choose the best path for your transformation in the digital world. Online Marketing The most effective mix of tools to achieve your marketing objectives.
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SIENN Questions
The SIENN annual revenue was $24.9 million in 2026.
Gerard Hubbers is the Chief Executive Officer SIENN Group of SIENN.
21 people are employed at SIENN.
SIENN is based in Nijmegen, Gelderland.
The NAICS codes for SIENN are [541511, 54, 541, 5415, 54151].
The SIC codes for SIENN are [737, 73].
Top SIENN Employees
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Gerard Hubbers
Chief Executive Officer SIENN Group at SIENN
Arnhem-Nijmegen Metropolitan Area, GE, NL21 -
Harry van Kessel
CTO at SIENN
Nijmegen, GE, NL1 -
2
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Robert van Den Boom
Customer Success Manager at SIENN
Arnhem-Nijmegen Metropolitan Area, GE, NL1 -
1
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Jordi Bens
Commercial Project and Service Coordinator at SIENN
Nijmegen, GE, NL1 -
Aneta Zawieja
Senior HR Business Partner at SIENN
Czernica, PL1 -
Patrick Kuster
Chief Operating Officer at SIENN
Goirle, NB, NL1 -
Dominika Skiba
Senior Scrum Master at SIENN
Wrocław, PL2
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