Transparency
Sub-processors
Viamentis uses a small number of trusted third-party organisations, sub-processors, to deliver specific aspects of the Tenon and Rabbet platform. This page lists each sub-processor, what they do, and which deployment types they apply to.
Last updated: March 2026
All sub-processors listed below are active. Tenon runs on Amazon ECS, stores data in Amazon RDS, and routes asynchronous tasks through Amazon SQS. AI, transcription, and communication services are called directly from the platform.
Amazon RDS and ECS are not used. The application and database run within your own infrastructure. For AI, transcription, queuing, and communication features, the on-premises Tenon instance makes outbound API calls to Tenon Central (Viamentis-hosted), which orchestrates these services on behalf of your deployment.
Infrastructure
Core platform services used to run, store, and queue data within Tenon.
Amazon RDS
Amazon Web Services
Relational database. All Tenon data at rest is stored here.
Data: All platform data including incidents, records, users, and configuration.
Amazon ECS
Amazon Web Services
Container orchestration. Runs the Tenon application platform.
Data: Application workloads and in-flight request data.
Amazon SQS
Amazon Web Services
Message queuing. Manages asynchronous tasks such as notifications and event processing.
Data: Event payloads and notification content.
AI & Intelligence
Third-party AI models and speech services that power Rabbet and Tenon's intelligent features.
Claude API
Anthropic
Large language model, one of the AI model options powering Rabbet for content generation, data analysis, and intelligent categorisation.
Data: Data fields and records submitted by users for AI-assisted processing.
OpenAI API
OpenAI
Large language model, one of the AI model options powering Rabbet for content generation, data analysis, and intelligent categorisation.
Data: Data fields and records submitted by users for AI-assisted processing.
Amazon Transcribe
Amazon Web Services
Speech-to-text. Converts voice input into text for Rabbet's voice dictation feature.
Data: Audio recordings submitted through Rabbet's voice input.
Communication
Services used to deliver outbound SMS and email messages generated by Tenon's notification and communication workflows.
Twilio SMS
Twilio
SMS delivery. Sends text message notifications to patients, staff, and stakeholders.
Data: Recipient phone numbers and message content.
SendGrid Email
Twilio
Email delivery. Sends email notifications, reports, and communications.
Data: Recipient email addresses and message content.
If you have questions about how Tenon processes data or the role of any sub-processor, please contact Viamentis. Changes to this list will be notified to customers in accordance with applicable data processing agreements.