Tyco, built into one of America's biggest industrial conglomerates through a string of aggressive acquisitions, has former Tory Party treasurer Lord Ashcroft on its board. Kozlowski, 55, who quit as chief executive of the conglomerate last week, had been one of America's highest-flying and best-paid bosses, collecting a total of $325m in pay, options, bonuses and share sales over the past four years.