Research into the post-investment relationship between informal investors (business angels) and the businesses in which they invest concludes that investors make a contribution by acting as a sounding board/mentor for the entrepreneur and in strategy development and execution, and that this contribution is generally valued by the entrepreneur. However, there has been no research into the specific circumstances in which this contribution has been made, the processes and relationships involved in the delivery of and acting on that advice, and the direct evaluation of the impact of this contribution in specific situations.