Studied 51 technical entrepreneurs, focusing upon the relationships between their motivation and company performance. More specifically, the relationships between the entrepreneurs' needs for achievement, power, and affiliation were related to the performance of the 51 small companies they founded and operated. Results indicate that high need for achievement and moderate need for power are associated with high company performance. The effects of need for power and affiliation on performance seem to be derived through their influence on leadership styles. (PsycINFO Database Record (c) 2006 APA, all rights reserved). © 1969 American Psychological Association.