This page lists all sub-contractors of the Impact Stack service until 7th of Feb 2025. The most recent list of sub-processors can be found here.
The following sub-contractors are used for Impact Stack as a service:
Hetzner Online GmbH
Data centres and virtual servers for all Impact Stack clients.
Data held: application data, Personal Data of customer and end-users (supporters), including contact data.
Industriestr. 25, 91710 Gunzenhausen, Germany.
more onion Ltd (UK)
Acting as sub-processors for all Impact Stack clients when the client directly contracts with more onion e-campaigning GmbH as their primary Processor.
Data held and accessed: application data, Personal Data of customer and end-users (supporters), including contact data.
Impact Hub, King’s Cross, 34B York Way, London, N1 9AB, UK.
more onion e-campaigning GmbH (Austria)
Acting as sub-processors for all Impact Stack clients when the client directly contracts with more onion Ltd as their primary Processor.
Data held and accessed: application data, Personal Data of customer and end-users (supporters), including contact data.
Lange Gasse 8/2, A-1080 Wien
Netcup GmbH
Data centres and virtual servers for all Impact Stack clients.
Data held: application data, Personal Data of customer and end-users (supporters), including contact data.
Daimlerstraße 25, 76185 Karlsruhe, Germany.
Rhiannon Roberts
Content production and support, only applicable for specific projects which involve both agency work and Impact Stack. You will be notified if this applies to a project you have commissioned.
Data accessed: Personal Data of customer and end-users (supporters), including contact data.
Located in the UK.
Glyn Thomas
Consultancy and development work: only applicable for specific projects. You will be notified if this applies to a project you have commissioned.
Data accessed: Personal Data of customer and end-users (supporters), including contact data.
Located primarily in Germany.
Rebecca Turner
Content production and content performance review. Only applicable for specific projects, you will be notified if this applies to a project you have commissioned.
Data accessed: Personal Data of customer and end-users (supporters), including contact data.
Located in the UK
Shae Corvidae
Content production and advert set up in Meta advertising interface plus analysis of data in Impact Stack. Only applicable for specific projects, you will be notified if this applies to a project you have commissioned.
Data accessed: Personal Data of customer and end-users (supporters), including contact data.
Located in the UK