Oyster Subprocessors List (September 2026): Changes and History
Oyster names 36 subprocessors on its published list. Read from the vendor's own page and re-checked daily.
Last checked September 28, 2026
Official source ↗
Oyster subprocessors (September 2026)
| # | Subprocessor | Purpose | Location |
|---|---|---|---|
| 1 | Accountor Denmark A/S | Payroll Processing for Denmark Payroll Team Members | — |
| 2 | Amazon Web Services, Inc. | Virtual Data Center Services | — |
| 3 | Baker Tilly Kirk | Payroll Processing for Ireland Payroll Team Members | — |
| 4 | Baker Tilly SAS | Payroll Processing for France Payroll Team Members | — |
| 5 | BELL Consulting S.R.O | Payroll Processing for Czech Republic Payroll Team Members | — |
| 6 | BillyPay BV | Payroll Processing for Belgium Payroll Team Members | — |
| 7 | Box, Inc. | Bulk Uploading of Payroll Team Member Data for Onboarding | — |
| 8 | Brain Payroll UK Ltd | Payroll Processing for UK Payroll Team Members | — |
| 9 | Conceito-Consultoria de Gestao, S.A. | Payroll Processing for Portugal Payroll Team Members | — |
| 10 | Crystal Clear Pte Ltd | Payroll Processing for Singapore Payroll Team Members | — |
| 11 | De Hooge Waerder Beverwijk B.V. | Payroll Processing for Netherlands Payroll Team Members | — |
| 12 | ECOVIS Hellas LTD | Payroll Processing for Greece Payroll Team Members | — |
| 13 | Employee Managed Services Pty Ltd | Payroll Processing for Australia Payroll Team Members | — |
| 14 | Google, LLC (G-Suite) | Data Collection, File Storage, and Communication | — |
| 15 | Grupo IPS Especialistas de RH | Payroll Processing for Mexican Payroll Team Members | — |
| 16 | Jet HR, Ltd. | Payroll Processing for Italy Payroll Team Members | — |
| 17 | Leinonen Bulgaria EOOD | Payroll Processing for Bulgaria Payroll Team Members | — |
| 18 | Leinonen Hungary KFT | Payroll Processing for Hungary Payroll Team Members | — |
| 19 | Leinonen Suomi Oy | Payroll Processing for Finland Payroll Team Members | — |
| 20 | Leinonen Sweden AB | Payroll Processing for Sweden Payroll Team Members | — |
| 21 | Merge API, Inc. | Facilitation of API-based data transfers between the Oyster Platform and Customer HRIS and Payroll Systems | — |
| 22 | Mochizuki Accounting Office | Payroll Processing for Japan Payroll Team Members | — |
| 23 | Nexdigm Private Limited | Payroll Processing for India Payroll Team Members | — |
| 24 | Nexia ABS Financial Services S.R.L. | Payroll Processing for Romania Team Members | — |
| 25 | Nexia SAB&T | Payroll Processing for South Africa Payroll Team Members | — |
| 26 | Payworks, Inc. | Payroll Processing for Canada Payroll Team Members | — |
| 27 | Platin Personel Hizmetleri A.S. | Payroll Processing for Turkey Payroll Team Members | — |
| 28 | Rosendahl Treuhand + Steuerberatung | Payroll Processing for Switzerland Payroll Team Members | — |
| 29 | RPI Roehm Internatioan GmbH | Payroll Processing for Germany Payroll Team Members | — |
| 30 | Sage Spain S.L. | Payroll Processing for Spanish Payroll Team Members | — |
| 31 | Slack Technologies, LLC | Internal Communications | — |
| 32 | Snowflake, Inc. | Data Analysis, including analyzing Messaging Data using Snowflake Cortex AI. | — |
| 33 | trycourier.com, Inc. | Communications Platform for system and service messaging | — |
| 34 | Unija Smart Accounting d.o.o. Sarajevo | Payroll Processing for Bosnia and Herzegovina Payroll Team Members | — |
| 35 | Unija Smart Accounting d.o.o. Beograd | Payroll Processing for Serbia Payroll Team Members | — |
| 36 | Zendesk, Inc. | Helpdesk Ticketing and People Partner Services Communications | — |
Get an email when Oyster changes its subprocessors
ClauseTrail re-checks this list every day and tells you exactly who was added or removed — including when a vendor starts sending data to an AI provider. The first vendors are free.
Documents we track for Oyster
- DPA
- checked September 28, 2026 legal.oysterhr.com ↗
- Privacy policy
- checked September 28, 2026 legal.oysterhr.com ↗
- Subprocessor list
- checked September 28, 2026 legal.oysterhr.com ↗
- Terms of service
- checked September 28, 2026 legal.oysterhr.com ↗
- Trust page
- checked September 28, 2026 www.oysterhr.com ↗
Change history
Tracking since September 28, 2026. No change has been published since; additions, removals and document changes will appear here as they're published.
Oyster subprocessors FAQ
- How many subprocessors does Oyster use?
- Oyster lists 36 subprocessors on its published list, including Accountor Denmark A/S, Amazon Web Services, Inc., Baker Tilly Kirk, Baker Tilly SAS, and BELL Consulting S.R.O and 31 more.
- When was Oyster's subprocessor list last checked?
- ClauseTrail last checked Oyster's subprocessor list on September 28, 2026. Lists are re-checked daily.
- How do I find out when Oyster adds or removes a subprocessor?
- ClauseTrail monitors Oyster's subprocessor list, DPA, privacy policy and terms and emails you the exact change — who was added or removed and what the page said before and after. The first vendors are free.