This paper analyses a database of U.K. small companies in order to establis
h the profile of Technology Based Small Firms (TBSFs) in terms of their dem
ography, financial structure and performance, and tax affairs. Following th
e evaluation of the impact of direct taxation on the high technology small
companies, compared to that of their low technology counterparts, the paper
briefly discusses the current policy debate about the nature and appropria
teness of tax-based incentives for the development of this strategically im
portant scale and type of enterprise.