IKEA and SCA Packaging are compared regarding their efforts to share knowledge across boundaries. Both companies share explicit knowledge using intranets and manuals. For tacit knowledge, experienced employees migrate within the organizations. IKEA relies on its corporate culture and training programs to encourage sharing. SCA has a knowledge management program but knowledge is harder to share due to complex production processes. Institutional forces like career incentives, trust, and shared vision motivate employees to share knowledge at IKEA.