Zellis
Zellis sells payroll and HR software and services to employers, mainly in the UK and Ireland.
Subprocessors (57)
List updated Jan 20, 2026 · Checked Oct 25, 2026 · source disclosure ↗
| vendor | purpose | evidence |
|---|---|---|
| | Workforce management for time and attendance Payroll / HR Services | “RotaGeek Limited” |
| | Clocking devices for time and attendance Payroll / HR Services | “Grosvenor Technology Ltd” |
| | Bank sort code look-up API and address validation Elementsuite Products / Services and ZellisONE | “Allies Computing Ltd” |
| | Bank account validation for IBANs, account numbers and sort codes Elementsuite Products / Services and ZellisONE | “Theano GmbH” |
| | Hosting and related services Elementsuite Products / Services and ZellisONE | “Amazon Web Services EMEA Sarl” |
| | Microsoft Azure public cloud services and infrastructure Elementsuite Products / Services and ZellisONE | “Microsoft Ltd” |
| | Digital transformation consultants Elementsuite Products / Services and ZellisONE | “Phase 3 Consulting Limited” |
| | Penetration testing Elementsuite Products / Services and ZellisONE | “LRQA Group Limited” |
| | ChatGPT services for tier 1 customer queries Elementsuite Products / Services and ZellisONE | “OpenAI LLC” |
| | Clocking devices Elementsuite Products / Services and ZellisONE | “Synel Industries (UK) Limited” |
| | Digital identity document verification Elementsuite Products / Services and ZellisONE | “TrustID Limited” |
| | Payroll software for Gross to Net module Elementsuite Products / Services and ZellisONE | “Brain Payroll UK Limited” |
- RotaGeekUnited Kingdom, European Economic Area
Workforce management for time and attendance
“RotaGeek Limited”
- GT ProtectUnited Kingdom
Clocking devices for time and attendance
“Grosvenor Technology Ltd”
- PostcoderUnited Kingdom
Bank sort code look-up API and address validation
“Allies Computing Ltd”
- IBAN-rechnerEuropean Economic Area
Bank account validation for IBANs, account numbers and sort codes
“Theano GmbH”
- Amazon Web ServicesEuropean Economic Area
Hosting and related services
“Amazon Web Services EMEA Sarl”
- Microsoft AzureUnited Kingdom, European Economic Area
Microsoft Azure public cloud services and infrastructure
“Microsoft Ltd”
- Phase 3 ConsultingUnited Kingdom
Digital transformation consultants
“Phase 3 Consulting Limited”
- NettitudeUnited Kingdom
Penetration testing
“LRQA Group Limited”
- OpenAIUnited States
ChatGPT services for tier 1 customer queries
“OpenAI LLC”
- SynelUnited Kingdom
Clocking devices
“Synel Industries (UK) Limited”
- TrustIDUnited Kingdom, European Economic Area
Digital identity document verification
“TrustID Limited”
- Brain PayrollUnited Kingdom
Payroll software for Gross to Net module
“Brain Payroll UK Limited”