Dicker Data Limited announced preliminary earnings guidance for the full year ended June 30, 2012. For the period, the company estimates its sales revenue to be $455 million up 18.5% from $384 million in fiscal 2011 resulting in profit before tax in the range of $12.1- 12.3 million an increase of 37.7% - 40.0% from pcp. This result is expected to produce a net profit after tax of between $8.1-8.3 million fiscal year 2011 full year of $6.1 million.