Sub-processors
Updated 11 October 2026
The Swedish version is the authoritative text.
What this list is
When a business uses Onesync, the business is the controller of data about its own clients and Onesync is the processor. To deliver the service, Onesync in turn engages sub-processors. The list below is the list the data processing agreement refers to. Customers are notified in advance when a sub-processor is added or replaced, and may object.
Sub-processors
| Provider | What they do | Where processing happens |
|---|---|---|
| Supabase, Inc. † | Database and file storage — where content, messages, bookings and customer records live. | Stockholm, Sweden (EU) |
| Vercel, Inc. † | Hosting for the websites and the API. | Frankfurt (fra1), Germany (EU) |
| Amazon Web Services EMEA SARL | The language models behind the chat and the content engine (Amazon Bedrock), and email delivery. | EU: Frankfurt; configured EU cross-region profiles may use Frankfurt, Stockholm, Milan, Spain, Ireland and Paris. |
| Resend, Inc. | Email delivery: confirmations, campaigns and notifications. | United States |
| Stripe Payments Europe, Limited | Card payments and invoices for Onesync's own fee — the business name, its contact person and card details. Does not touch the business's own guests or customer records. Onesync is controller for this processing, not processor. | Ireland, with transfers to Stripe, Inc. in the United States. |
| Upstash, Inc. | Short-lived cache and rate limiting. Holds no messages or customer records. | United States |
| Anthropic PBC · OpenAI, L.L.C. · OpenRouter, Inc. | Image generation and AI visibility analysis through OpenRouter, and language models bought directly where configured. | United States |
| Sev Nordic AB | Operates and hosts the platform — the servers, database, storage and email delivery are held and run by Sev Nordic AB. The data is stored inside the EU. | Sweden (EU) |
| Google Ireland Limited * | Google Business Profile and Search Console, for businesses that have connected their accounts. | Ireland (EU) and the United States |
| Meta Platforms Ireland Limited · TikTok Technology Limited · Snap Group Limited * | Publishing to connected social channels and WhatsApp customer support where enabled and connected. | Ireland (EU) and the United States |
Those marked * are engaged only for businesses that have connected their own account to the service.
Those marked † are companies established outside the EU/EEA even where processing runs inside the EU. Location alone does not establish access and transfer arrangements. Contact us for the agreements and transfer arrangements applicable to your processing.
Onesync as a recipient
Onesync is provided by Sev Nordic AB (company reg. no. 559595-6052), registered office Botkyrka, Stockholms län, Sweden, for customers in the EU/EEA, and by Nordic Technologies L.L.C-FZ (licence no. 2653509.01), Meydan Free Zone, Dubai, for customers elsewhere. The platform is operated and hosted by Sev Nordic AB.
Changes
The list changes when the stack changes. Customers with a current agreement are notified in advance of a change of sub-processor that handles personal data, with the opportunity to object before the change is made.