Sub Processor List

Below is a current list of the sub-processors authorized to process personal data for Fourth services.

Updates to Sub-Processor List

This sub-processor list may be updated by Fourth from time to time. Please check back at this URL frequently for an up to date listing of our sub-processors.

Subscribing to Updates to the Sub-Processor List

To subscribe to updates to Fourth’s sub-processor list, please follow the posts on the Fourth Community.

Requesting More Information about a Sub-Processor

If you would like to receive any additional information about any sub-processors in respect of the role it plays for Fourth and its security controls, please make the request via email to with “Information Request” in the subject line.


Content Delivery Network Provider (ISO/IEC 27002 certified; SOC2 audited). Location – USA.

Amazon AWS

Public cloud hosting provider. All solutions. (ISO 9001, 27001, 27008, 27017 Certified; SOC1, SOC2, SOC3 audited) Location – EU, EMEA, USA.

Callidus (Litmos)

Provider of digital e-learning services for Fourth Academy. Location – USA.

Carrenza/6 Degrees

Private cloud hosting partner (Workforce Management and Purchase to Pay and Inventory solutions). Locations – EU and US.


Network immune system providers. All solutions. Location – EU.

Docusign Inc.

Provider of contract e-signature services for Fourth’s UK ATS solutions. Location- EU. DocuSign has Binding Corporate Rules in place.


BACS processing provider for payroll services (UK Payroll Bureau only). Location – EU.

Fourth Bulgaria EOOD

Fourth subsidiary. All solutions. Location – EU.

Fourth Software Trading LLC

Fourth subsidiary. All solutions. Location – UAE.

Fourth USA Inc

Fourth subsidiary. All solutions. Location – USA.


Private code, version control and credentials repository. All solutions. Locations – EU and USA.


Private cloud hosting partner (Fourth Analytics). Locations – EU and USA.


Analytics provider (Inventory solution). Locations – EU and USA.

SaaS logging platform. All solutions. Location – EU.

Microsoft Azure

Public cloud hosting provider. All solutions. Location – EU, US, and APAC.


Mobile user journey logging provider. All solutions, excluding Adaco. Location – USA. ApS, t/a GatewayAPI

SMS messaging provider for Fourth’s ATS solution. Location EU.


Cloud Hosting Services (ISO 27001 certified; SOC1, SOC2 audited). Location – USA.

Running with Knives

Authorised reseller and provider of implementation services (Workforce Management Products and FnB Live). Location – UK.


CRM database provider, including hosting. All solutions. Locations – EU, UK and USA.


Provider of T&A hardware (clocks) (Workforce Management). Location – EU. See “T&A and Biometric Data” at

TrustID Limited

Provider of RTW checks for Fourth’s ATS solution. Location UK.

Wagestream Limited

Nominated Provider of Fourth’s Salary Service (on-demand pay). Location – UK.


Support/service management. Location – UK and USA.