ABOUT US
We are RADIUZE. We secure and operate digital systems so they do not just stay unnoticed, but truly perform.
Numbers, people, attitude.


More than 60 experts.
One standard: reliability. For systems that run stably and deliver in day to day business.
More than 15 years in the market.
Today, companies from a wide range of industries rely on our expertise.

More than 2,000 projects.
From workplace to cloud, structured in planning, precise in execution, and collaborative in delivery.

What we stand for.
We are strong and innovative
Not every trend is progress.
For us, innovation is not an end in itself. We evaluate new technologies with a clear perspective and make conscious decisions about what truly creates value. Not everything new drives progress.
We are sustainable and collaborative
Trust is not a project.
We think long term, take responsibility, and stay by our clients’ side, even when requirements grow or things become complex.
We are bold and agile
Speed is not an end in itself.
We act quickly, but never rashly. For us, agility means adaptability with responsibility, without compromising on quality, security, and stability.
What drives us.
Technology is constantly evolving.
Our standard is stability, security, and responsibility.
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Our vision
We ensure that IT security and IT management are no longer obstacles, but rather essential requirements for greater speed and growth.
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Our mission
We secure and operate digital systems in a way that keeps them out of the spotlight while ensuring they deliver results. We take responsibility behind the scenes. This allows us to drive acceleration without risk and progress without the rush.
Our team. Your experts.

Markus Holländer
Chief Executive Officer

David Schwalen
Chief Operating Officer

Spyridon Natsikos
Head of Governance & Strategy

Karsten Hentrup
Teamlead Security

Ana Antunes Dos Santos
HR Administratorin

Anil Aydogan
Director Operation & Strategy Team

Constantinos Nikolaou
Consultant

Simon Clotten
Teamlead Managed Service

Ali Ekinci
Teamlead Onsite & Servicedesk

Harald Krause
Senior Consultant

Tom Rubarth
Head of Consulting

Rosa Lange
Project Management Consultant

Selin Oral
Marketing Specialist

Lars Leroy
Solution Architect

Laura Butterweck
Marketing Specialist

Matinique Schippers
HR & Culture Manager

Michael van Laak
Senior Consultant

Lukas Grossnik
Service Specialist

Andreas Kinderreich
Service Specialist

Ekrem Güney
Service Specialist

Kai Schiffers
Senior Service Specialist

Mario Salzburg
Teamlead Onsite & Service Desk

Sven Wagner
Competence Teamlead Modern Work

Erkan Güney
Apprentice

Erik Scheller
Service Specialist

Cem Gökce
Apprentice

Pedram Ghoochany
Service Specialist

Nils Blotenberg
Apprentice

Cem Uslu
Apprentice

Tobias Hibert
Apprentice

Noah Czernewski
Apprentice

Alan Sadovics
Service Specialist

Daniel Lambertus
Service Specialist

Andreas Korsten
Junior Service Specialist

Carsten Braun
Service Specialist

Marc Braun
Junior Consultant

Marie-Josee Cwik
Asisstant Management Board

Marcus Riether
Service Specialist

Nico Lehmann
Apprentice

Oliver Stojanovic
Senior Service Specialist

Pascal Beckers
Service Specialist

Samet Sezgin
Service Specialist

Sebastian Ohler
Senior Service Specialist

Thomas Froitzheim
Senior Consultant

Thomas Hensel
Service Specialist

Thomas Stokowy
Consultant

Tim Erdner
Service Specialist

Frank Neunzig
Senior Consultant

Tom Wilhelm
Service Specialist
