We analyse the impact of regional and sectoral labour market characteristics as determinants of the supply of employer financed training using a unique data set on employer provided training in Vienna. According to the results labour turnover has a robust negative impact and employment density a slightly less robust but also negative impact on the probability of a firm to provide employer financed training. Policies directed at increasing employer provided training may therefore face substantial challenges in sectors and regions with high labour turnover and employment densities. These challenges are likely to be even larger when it comes to providing employer financed training for less skilled workers.