List of subcontracting relationships / subcontractors

The listed subcontractors are used to supply our services:

Company Service Contact Wherefore?
Amazon Web Services, Inc. Cloud Services
(Cloudlog, Mail Automation)
410 Terry Avenue North
Seattle WA 98109
United States
Backbone for our cloudlog monitoring and transactional e-mails / newsletter dispatch
AnyDesk Software GmbH Remote Support Friedrichstraße 9
70174 Stuttgart
Germany
Remote maintenance
Billomat GmbH & Co. KG Receipt and invoice tool Lorenzer Straße 31
90402 Nürnberg
Germany
Creation and dispatch of offers and invoices. Capture and account assignment of receipts.
Cloudinary Inc. Image Delivery Services 111 W Evelyn Ave, Suite 206
Sunnyvale, CA 94086
United States
Optimized media management and CDN system
DigitalOcean Cloud Services 101 Avenue of the Americas, 10th Floor
New York, NY 10013
United States
Various backend systems for GK SaaS services
easybill GmbH Receipt and invoice tool Düsselstr. 21
41564 Kaarst
Germany
Creation and dispatch of offers and invoices. Capture and account assignment of receipts.
FastBill Receipt and invoice tool FastBill GmbH,
Wildunger Str. 6,
60487 Frankfurt am Main,
Germany
Creation and dispatch of offers and invoices. Capture and account assignment of receipts.
Google Cloud Services
(Google Cloud & Analytics Platform, G Suite)
Google LLC,
1600 Amphitheatre Parkway,
Mountain View,
CA 94043
United States
Website analytics, maps, mail automation
Hetzner Online GmbH Datacenter Services Industriestr. 25
91710 Gunzenhausen
Germany
Hosting of LAB systems
Mailchimp Mail-Service
(Newsletter & Mail Automation)
The Rocket Science Group, LLC d/b/a MailChimp,
675 Ponce de Leon Ave NE,
Suite 5000,
Atlanta, GA 30308
United States
Mail dispatch from automated systems, newsletter dispatch
Microsoft Cloud Services
(Azure, Microsoft 365)
Building 3, Carmanhall Road
Sandyford, Industrial Estate 18
Dublin, Ireland
CRM, complete IT infrastructure and various backend systems for GK SaaS services
Postmark Mail-Service
(Mail Automation)
TWildbit, LLC,
225 Chestnut St,
Philadelphia, PA,
19106,
United States
Mail dispatch from automated systems
TeamViewer GmbH Remote Support Jahnstr. 30,
73037 Göppingen
Remote maintenance
Zendesk GmbH Ticketsystem Neue Schönhauser Str. 3-5
10178 Berlin
Germany
Helpdesk software for all customer support requests