Social capital has been receiving increasing attention in the field of human resource development (HRD). However, little is known as to how social capital has been formed or has grown over time with HRD interventions. There is limited research and discussion on how reflective practices play a role in the development of social capital as individuals reflect together in interactive social contexts such as networking activities. This article looks at how reflective practices can inform organizational social capital building. This article reviews relevant social capital and reflective practices literatures. An integrative model of institutional social capital and reflective practices is introduced to help explain how the two areas can be interrelated. The article suggests future efforts to integrate research and practice to better develop social capital in organizations. (Contains 2 tables and 1 figure.)