Telefónica Deutschland Holding AG engages in the telecommunication industry. The company is headquartered in Muenchen, Bayern and currently employs 7,848 full-time employees. The company went IPO on 2012-10-30. The firm offers mobile and fixed-line services, mobile voice, data and other services to private and business customers, as well as digital products and services in the fields of Internet of Things (IoT). The company also acts as a wholesale provider, offering access to its infrastructure and service capabilities to its wholesale partners. The firm markets its products under a multi-brand strategy. Its brand portfolio includes O2, Blau, AY YILDIZ, Ortel Mobile, AldiTalk and Tchibo mobil. The firm targets small offices or Home offices (SoHo) and small and medium enterprise (SME) business customers through its O2 brand.