This paper considers STS aspirations to engage with the field of Organization and Management Studies (OMS). It does so by investigating the employability of the concept of boundary object in OMS. Through an extensive literature review, the paper shows that rather than a simple engagement between STS and OMS the relation between the two consists of multi-layered (non-)engagements. The paper shows that the 'successful' uptake of and the active engagement with the concept of boundary object in OMS cannot simply be regarded as a (successful) engagement of STS with OMS. The situated and contingent character of what counts as successful engagement explains the tensions that arise when a concept is taken up in a new field. Copyright © 2009 SAGE Publications.