| CHEVRON | American multinational petroleum corporation founded in 1879 (7) |
| DONCASTERROVERS | Football club founded in 1879 whose crest features a viking (9,6) |
| DEBEERS | International diamond mining corporation founded by Cecil Rhodes in 1888 (2,5) |
| IBM | American multinational technology corporation founded in 1911 as the Computing-Tabulating-Recording Company |
| HOLSTEN | Brewing company founded in Hamburg in 1879 (7) |
| SCIENCE | Christian ____, denomination founded by Mary Baker Eddy in 1879 (7) |
| BEECHAM | Thomas, conductor and impresario born in 1879 (7) |
| BOSE | American corporation founded in 1964 that specialises in audio equipment |
| TROTSKY | Born Lev Davidovich Bronstein in 1879, Russian revolutionary who developed a form of Marxism (7) |
| VANESSA | ____ Bell, English painter born in 1879 who was a member of the Bloomsbury Group (7) |
| GOLDWYN | Samuel, U.S. film producer born in 1879, noted for his malapropisms (7) |
| OKINAWA | Largest of the Ryukyu Islands, it was annexed by Japan in 1879 and invaded by US forces in 1945 |
| RIOTINTO | Leading British-Australian mining corporation founded in Huelva in Spain in 1873 (3,5) |
| STRIDERITE | Children's footwear corporation founded in Boston |
| MATTEL | American multinational toy manufacturing company founded in 1945 |
| MICROSOFT | Corporation founded by Bill Gates and Paul Allen in 1975 |
| NINTENDO | Japanese video game corporation founded as a card company in 1889 |
| GOOGLE | American multinational technology company founded by Larry Page and Sergey Brin in 1998 (6) |
| ORACLE | American multinational computer company founded by Larry Ellison, Bob Miner and Ed Oates in 1977 as Software Development Laboratories (SDL) |
| WESTERN | (and 5 Across) American multinational company reunions went badly (7,5) |