A spin-off from the Wolfson Microelectronics Institute at Edinburgh University, this company designs and manufactures chips that convert analogue signals, such as sound and touch, into digital ones. Wolfson’s products are used in Microsoft’s Xbox. In Dell’s PDAs they convert the touch-screen signals into commands. In 2000 the company received £7m in funding from business angels, Sanyo and the venture-capital arm of WestLB. Wolfson has pursued an aggressive marketing campaign, opening sales offices in Japan, Taiwan and America. As a result, sales have risen 61% a year from £8.7m in 2000 to £22.4m in 2002. The company was recently reported to be planning a flotation later this year.
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