From their website:
arvato is an international outsourcing service provider. Every day, over 68,000 arvato employees in 35 countries are at work helping our customers achieve success in the market. We design and implement solutions for a wide variety of business processes throughout integrated service chains.
Our services include everything from the preparation and distribution of printed materials and digital storage media to data management, customer care, CRM services, supply chain management, digital distribution, financial services, professional and individualized IT services and the direct marketing of media. arvato is a wholly-owned subsidiary of Bertelsmann.