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.

Track Oyster 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.