Partner profile
Retarus
Secure Enterprise Cloud Messaging & Communications
Founded 1992 · Munich, Germany · 51-200 employees · Private, independent
Partnership Overview
Who Retarus is built for
Large enterprises (especially manufacturing, healthcare, finance, logistics) needing secure, compliant, high-volume cloud messaging — email security, cloud fax, and transactional/EDI messaging — with EU data sovereignty.
Retarus is a global enterprise cloud messaging and communications provider founded in 1992 and headquartered in Munich, Germany. Retarus delivers secure cloud email security, cloud fax services, transactional/business messaging (SMS, EDI, A2P), and document/process integration to large enterprises worldwide, operating its own global data centers. It is known for high-security, compliance-grade messaging infrastructure and strong adoption among Fortune 500 and DAX enterprises.
- VerifiedSep 13, 2026 · high confidence
- 1solution across 2 categories
- 34 yrsin business, since 1992
- 51-200employees
Why teams pick Retarus
- + years (since 1992) of enterprise communications
- 'Made in Europe' email security (data sovereignty)
- Deep SAP, Microsoft 365, Salesforce & EHR (Epic/Cerner) integrations
- AI document processing (IDP)
- Analyst-recognized (IDC MarketScape Leader; Radicati Top Player)
- Global delivery with HIPAA/GDPR compliance
Probably not a fit
We haven't published fit caveats for Retarus yet. Tell us what you run and we'll say whether they fit, or who we'd look at instead.
Get matched insteadRecognition & proof points
Leader, IDC MarketScape: Worldwide Digital Fax 2024Analyst recognition · IDC
- Top Player, Radicati Secure Email Market Quadrant 2025Proof point
Cited by Forrester, Gartner and IDCAnalyst recognition · Gartner
Notable clients
Vendor-reportedNamed clients/case studies: DZ BANK, flatexDEGIRO, Beth Israel Lahey Health, Dachser, Federated Co-operative Limited (Canada), TRILUX, Gira, Feinmetall, Twoday (Visma).
Our Solutions
Rubber Duck solutions through Retarus
From first evaluation to day-to-day operations, Rubber Duck Technology helps you get full value from Retarus' Communications & CX and Managed IT & Cloud Ops solutions. We fit them to the systems you already run, remove overlap, and give you a clear view of how they perform, so your team can move faster with fewer surprises.
Communications & CX
CPaaS / Messaging APIs
Retarus delivers enterprise cloud messaging across transactional email, SMS, RCS, and A2P channels, operating its own global data centers for secure, compliance-grade delivery.
- EU data sovereignty Operates its own global data centers with 'Made in Europe' infrastructure for data sovereignty.
- Enterprise integrations Deep connectors to SAP, Microsoft 365, Salesforce, and EHR systems embed messaging into core processes.
- 30+ year heritage More than three decades of enterprise communications experience since 1992.
SAP
Microsoft 365
SalesforceHow Retarus delivers
24/7 enterprise support; own global data centers with high-availability SLAs; regional support across EU, Americas, and APAC. (vendor-reported)
Services in detail
- Managed CommunicationsDelivered as fully managed cloud messaging services with global, compliance-grade operations.
- Integration ServicesDelivered as implementation and integration services into core enterprise platforms.
- 24/7 SupportDelivered as 24/7 enterprise support across global operations.
- Implementation & OnboardingDelivered as implementation and integration engagements for enterprise customers.
Automate/AI, built in · AI-Powered Features. Intelligent Document Processing (IDP) and Intelligent Capture use AI to extract and structure data from inbound documents (e.g., order confirmations into SAP); AI-assisted automation across messaging workflows.
Case Studies
What backs it up
Case studies
No published case studies yet.
Ask us and we'll request a reference call with Retarus.
Ask for a referenceDocuments
From Retarus
2 PDFs, collected while we vetted them
- Retarus Cloud Fax for Healthcare EHR FlyerDownload
- Retarus Cloud Messaging for SAP Banking InfosheetDownload
Profile compiled by Rubber Duck Technology from primary sources and partner collateral. Vendor-reported figures are labeled as theirs. Spot something wrong? Tell us.
Technology that doesn't sink under pressure
Talk it through before you sign.
Send us what you run today. We'll price Retarus against two alternatives and tell you which one we'd pick, and why.