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
Brunswick Corporation Brunswick Corporation The Brunswick Corporation, formerly known as the Brunswick-Balke-Collender Company, is an American corporation that has been active in developing, manufacturing and marketing a wide variety of products since 1845. Today, Brunswick Corporation owns numerous leading lifestyle brands such as Mercury Marine, Life Fitness, and Hammer Strength. They also own many popular boating brands under the Brunswick Boat Group division including Sea Ray, Bayliner, Crestliner, Harris Boats, and Boston Whaler. Starting in the 1970s, the company also entered the field of arms development and manufacture. In 2015, it had sales of US$4.105 billion with net earnings of $241.4 million