Relationships play an important role in tacit knowledge transfer. At the same time, it is difficult to understand the relationships individuals have with one another in the workplace. One technique for doing so is that of Social Network Analysis (SNA). We examine the role that SNA can play in determining whether tacit knowledge is being transferred between personnel. The outcomes from our research suggest that firm size, level of IT usage and meeting type will affect how likely tacit knowledge can be transferred within an organisation.