BRITAIN IRELAND SCOTLAND YOUNG PEOPLE WOMEN Sir David McMurtry RESULTS 2006 Ranking Worth Industry 28 £248m ( €365m) Engineering Renishaw, the precision instrument group, saw a 55% rise in profits to £31.25m in 2004-05. The Gloucestershire company was co-founded by McMurtry, 66, a former Rolls-Royce apprentice, in 1973. His stake is worth £234m and he has other assets. RESULTS 2005 Ranking 28 Worth 2005: £210m