TY - JOUR AB - Purpose– This paper aims to contribute to defining the concepts of boundary spanner, gatekeeper and knowledge broker. Design/methodology/approach– A review of the literature covering more than 100 sources. Findings– A review of past research leads to proposing a set of new definitions and also to the detection of six research avenues. Originality/value– The ability of organizations to recognize, source and integrate key information or knowledge is important for their strategy, innovation and performance over time. Three types of individuals have information gathering and knowledge dissemination roles at the frontier of organizations and groups: boundary spanners, gatekeepers and knowledge brokers. Although research on these individuals is well-developed, we found that in practice, the definitions of the concepts overlap and still need a clarification. So far, no systematic comparison of these roles has been undertaken. VL - 19 IS - 5 SN - 1367-3270 DO - 10.1108/JKM-01-2015-0036 UR - https://doi.org/10.1108/JKM-01-2015-0036 AU - Haas Aurore ED - Prof Claude Paraponaris, Dr Martine Sigal PY - 2015 Y1 - 2015/01/01 TI - Crowding at the frontier: boundary spanners, gatekeepers and knowledge brokers T2 - Journal of Knowledge Management PB - Emerald Group Publishing Limited SP - 1029 EP - 1047 Y2 - 2024/04/23 ER -