The contracting entity is the UK company — Software Systems Limited, 7 Bell Yard, London, England, WC2A 2JR, company number 14466340 — and all commercial terms, liability, insurance and data processing obligations sit with it. Invoicing is in sterling unless you request euros.
Technical leadership sits in the UK and Germany. Every engagement has a named solution architect and a named delivery lead in one of those two locations, and they are the people accountable for the technical outcome. They are not coordinators relaying messages: they design the system, review the code and answer to you for the result.
Engineering capacity sits across all three locations. Our Pakistan operation is a Zorix office with directly employed engineers on Zorix contracts, not a subcontracted or freelance arrangement. The same interview standard, code review process and security policy applies in every location.