1706. Twitter – having rejected the name Twitch for their social networking service, co-founder Jack Dorsey says: "we looked in the dictionary for words around it and we came across the word 'twitter' and it was just perfect. The definition was 'a short burst of inconsequential information', and 'chirps from birds'. And that's exactly what the product was." U UBS – named from the initials of the Union Bank of Switzerland, which merged with the Swiss Bank Corporation (SBC) in 1998. The initials no longer stand for anything, says the company, possibly because "United Bank of Switzerland" might be confused with the United Bank's subsidiary, United Bank Switzerland. Umbro – Umbro was founded in 1924 by the Humphrey (Umphrey) Brothers, Harold C. and Wallace. Unilever – name created to reflect the merger of Margarine Unie and Lever Brothers, agreed in 1929. Lever Brothers was named after its founders, William Hesketh Lever and his brother, James. UNIMED – Brazilian cooperative of physicians, meaning União de Medicos (Physicians' Union) Unisys – from United Information Systems, the new name for the company that resulted from the merging of two old mainframe computer companies, Burroughs and Sperry [Sperry Univac/Sperry Rand]. It united two incompatible ranges. The newborn Unisys was briefly the world's second-largest computer company, after IBM. Unocal Corporation – the Union Oil Company of California, founded in 1890 UPS – United Parcel Service of America, Inc. UUNET – one of the industry's oldest and largest Internet Service Providers, named from UNIX-to-UNIX Network V Vaisala – Finnish company named after its founder, Professor Vilho Väisälä Vale - formerly Companhia Vale do Rio Doce (the Sweet River Valley Company, referring to the Doce River), is the largest producer of iron ore and nickel in the world. Valero Energy Corporation – from Misión San Antonio de Valero, the Spanish-language name of the mission in the company's home city better known as The Alamo Valio – Finnish for "elite". The company was originally named "Voinvienti-osuusliike Valio" ("Butter export limited company Valio"). The name was chosen to evoke a connotation to the high quality of exported butter. Only dairies producing first-quality butter were chosen. Valtra – from Valmet Tractors, where Valmet is the name of a Finnish state-owned company (originally "Valtion Metallitehtaat" – English: "State Metalworks") Valve – game development company who uses a valve as symbolism, as in a lever which makes the flow of ideas readily