This paper examines the external advisors used by small businesses to help them solve their problems, focusing on distance between client and advisor. The analysis is based on a new stratified random sample survey of small businesses in manufacturing and services in five representative locations in Britain. The paper reports the distance between client and advisor, cost and extent of site visits by the advisor, focusing on differences between types of advisor, fields of advice, types of firm by size and sector, and types of location. The analysis demonstrates the importance of localization: 60.5% of advisors are drawn from within 10 km of the client, and 81.5% from within 25 km. The high degree of localization is shown to be chiefly dependent on accessibility and advisor location. The general pattern of client-advisor relations is demonstrated to be modelled accurately by a standard spatial interaction model. A key finding is that the spatial pattern of the location of the supply of advisors, particularly the size of the business centres in which they are located, must be taken into account simultaneously with the role of distance in order to explain the pattern of choice of business advisors.