In an in-person interview with Martin Hager, President and CEO of Retarus, and Nico Pfaff, Vice President of Sales (US) & Director of Channels & Alliances (pictured, below, right), we explored the unique space Retarus occupies as a global provider of enterprise messaging and communications infrastructure, with a heavy focus on compliance, quality, and local presence.
Retarus has been in business for over three decades, and in the U.S. market for nearly 15 years. What sets the company apart is its global footprint with a distinctly local execution. Offices, data centers, and legal entities are fully embedded in every region they operate—including full U.S. operations. With more than 450 employees worldwide, Retarus is not just a reseller of services. They own their infrastructure, operate their own Arista-based networks, and provide local data processing.
One of Retarus’ largest U.S. offerings is cloud fax—a service often underestimated in terms of scale and importance. Fax remains mission-critical for large enterprises, particularly in industries like healthcare and banking. As Hager explained, one failed fax transmission could result in a million-dollar liability. The company’s channel strategy reflects this criticality: in the U.S., more than 90% of business flows through the channel, with many system integrators and MSPs opting for a referral model to avoid regulatory complications and liability.
This approach plays to Retarus’ strength: full-service backend support, complete with telecom compliance, tax filings in 20 states, and a robust, audit-proven taxation framework via Wolters Kluwer. Telecommunications billing, often overlooked by MSPs, is handled with precision, preventing customer risk.
Retarus serves only large and very large enterprises directly, including long-time clients like JPMorgan and Goldman Sachs. However, the company supports MSPs and OEMs that need a white-label solution, giving them API-level provisioning, high availability, and a mature backend without forcing them to scale the infrastructure themselves. An MSP can bring Retarus in for fax, structured messaging, or future offerings without losing control of the customer experience.
Looking ahead, Retarus is launching transactional email services tailored for enterprise application traffic. This goes beyond API-to-send; it includes real-time monitoring, routing intelligence, and management of large-scale email delivery from enterprise platforms like SAP or Salesforce.
Retarus’ AI use cases are rooted in machine learning and natural language modeling, particularly for document classification and data extraction in structured business processes. Their European business already derives half of its revenue from business process solutions like EDI, invoice capture, and IDP. As supply chains globalize, the company’s abstraction-layer approach to AI enables normalization of diverse supplier inputs.
Whether it’s ensuring compliance in high-stakes enterprise environments or enabling scalable communication for franchises, Retarus’ deep expertise and global-local infrastructure make it a standout partner for MSPs, system integrators, and global enterprises alike.
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Aside from his role as CEO of TMC and chairman of ITEXPO #TECHSUPERSHOW Feb 10-12, 2026, Rich Tehrani is CEO of RT Advisors and a Registered Representative (investment banker) with and offering securities through Four Points Capital Partners LLC (Four Points) (Member FINRA/SIPC). He handles capital/debt raises as well as M&A. RT Advisors is not owned by Four Points.
The above is not an endorsement or recommendation to buy/sell any security or sector mentioned. No companies mentioned above are current or past clients of RT Advisors.
