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Why Retarus?Retarus’ Vision Is to Create the Perfect Network for the Global Economy.

Therein, Retarus manages the safe and efficient flow of information for enterprises around the world.

Since 1992 Retarus has been providing what is now commonly known as cloud services – the successful interchange of business information. That means that our customers benefit from over twenty-five years of experience and know-how.

Retarus’ managed services provide detailed insight into every transaction. At all times. That gives you 100% control.
OPEX not CAPEX: With Retarus’ cloud-based messaging services you only pay “per use”. Simply reduce your investment in hardware to zero.
Flexibility depends on scalability. So when your business grows, Retarus’ managed services grow with you.
Retarus’ services are compatible with all common standard interfaces. If required, you will also receive an extra-special feature – individual customization.

In Which of Retarus’ Globally Available Data Centers Do You Prefer Us to Process Your Data?

Decide yourself. This ensures that your communication processes meet all local requirements and data privacy regulations.

24/7 Availability

Upon request, Retarus’ support team is available for you around the clock.

Half a Billion Faxes

Every year, more than 500 million B2B faxes are sent with Retarus. The trend is upwards.

Half a Billion Undesired Messages

Retarus stops annually over half a billion undesired messages around the globe before they can cause any damage to the inboxes of our customers.

4500 Companies

Around 4500 companies around the world rely on Retarus’ Cloud Services.

Local Data Processing

In 13 countries on 4 continents, more than 460 Retarus employees take care of just one thing: you. People who work at Retarus feel at home. On average, employees stay with Retarus for an above-average 5 years.

More than 460 Employees

5 Years on Average

13 Countries on 4 Continents



IT Security made in Germany

Teilnehmer der Allianz für Cyber Sicherheit


Charta der digitalen Vernetzung

Deutsch-Japanischer Wirtschaftskreis


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Cloud Services made in Germany


Deutsch-Japanischer Wirtschaftskreis


SAP Certified Integration with SAP NetWeaver

SAP Certified Integration with SAP S/4HANA

CSA Certified Sender Alliance


ISAE 3402 Type II



SSAE 16 Type II




German Accelerator

Europe's 500

kununu Open Company

Bayerns Best 50

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Need More Figures?

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