Recent research shows that new types of high-skilled administrators, what we in this article label organisational professionals, have amplified their presence in public sector organisations in relation to other types of public sector employees. Our purpose is to analyse how organisational accountability can be seen as a driver behind the expansion of organisational professionals. Intensified political and administrative pressures seem to be driving this process, but there also seems to be internal turfs in which the different parts of the government administration seek to hold each other accountable, a process possibly amplified by professionalising ambitions of the organisational professionals. The article concludes that the bureaucratising effect of accountability demands ought to be highlighted more in critical research of accountability. The study is based on semi-structured interviews and focus groups with public sector professionals in Sweden from different policy sectors and government levels.