24SevenOffice is a Norwegian web-based (SaaS) ERP platform with modules for accounting, invoicing, CRM, project management, time tracking and payroll, complemented by email, files and calendar. The modules are connected and the system is used through the browser, so customer data is accessible across all parts.
The company is headquartered in Oslo, with offices in Stockholm and London, and is owned by 24Seven Technology Group. Norway is not an EU member but belongs to the EEA, so the GDPR applies. Under its data processor agreement, personal data is transferred to countries outside the EU/EEA only on the customer's explicit instruction. The data centres used are listed in the vendor's subprocessor list; check that list when concluding the agreement. The product is not open source.