O2 (UK) they can do it too" in reference to Vodafone and EE, O2's biggest competitors and the UK's top three mobile-telecoms companies. O2 (UK) Telefónica UK Limited (trading as O2 – stylised as O) is a telecommunications services provider in the United Kingdom, owned by the Spanish multinational Telefónica, and is headquartered in Slough. With 25 million subscribers (as of December 2017), O2 is the second-largest mobile network operator in the United Kingdom after EE, with Vodafone in third place. O2 was formed in 1985 as Cellnet, a 60:40 joint venture between BT Group and Securicor. In 1999, BT Group acquired
Shift Communications Shift Communications Shift Communications is a marketing firm based in Boston with offices in New York, San Francisco and Austin. The company was founded in 2003, when the assets of former public relations firm Sterling Hager was acquired by three of its executives. In 2006, it created the first Social Media Release. The firm's primary practices areas are in the healthcare, technology and consumer markets. Shift Communications was founded in May 2003 out of a technology PR firm, Sterling Hager. Mr. Sterling Hager sold the firm's assets to three of his executives, Jim Joyal, Todd Defren and Ed Weiler, who