Well-conducted requirements engineering (RE) activities account for a significant share of success in IT projects (Wiegers and Beatty, 2013). The RE process starts with identifying business objectives that define a context for eliciting business requirements. Because RE is considered a social interaction (Serna et al., 2017), a share of knowledge about business requirements is stored as unarticulated tacit knowledge possessed by individuals within an organization (Boyer and Mili, 2011). This personalization of tacit knowledge causes barriers to gathering valid requirements (Serna et al., 2017). Moreover, intra-organization knowledge sharing is often complicated by knowledge hiding (Connelly et al., 2012), resulting from a lack of interpersonal trust between employees and (external) analysts (Holste and Fields, 2010). In Knowledge Management (KM) literature, tacit knowledge sharing is mainly discussed from the cultural and psychological perspectives (Chen et al., 2018; Holste and Fields, 2010), which are out of the control of an external business analyst. However, some publications suggested specific methods and tools that business analysts can use to foster requirements elicitation, such as creating engaging environments (Nakano et al., 2013) and utilizing social web-based tools (Panahi et al., 2016, 2013). Although a large amount of focus in KM and RE was dedicated to knowledge and requirements elicitation, we see little integration of KM-based tools and techniques in RE. Therefore, in this paper, we draw on our experience facilitating a co-creation workshop to help other facilitators effectively deal with collecting tacit knowledge about the business requirements in organizations. We started with a systematic literature search in two areas (knowledge and requirements elicitation) and identified one review for each area that lists elicitation methods (Anwar et al., 2022; Gavrilova and Andreeva, 2012). We used conceptualization of the identified methods to design a workshop. After the workshop facilitation, we reflected on our data from participatory observation and suggested recommendations for similar workshops. We addressed several issues that emerged during the workshop, namely (i) insufficient domain knowledge before the workshop, (ii) lack of validation, and (iii) issues with capturing tacit knowledge during the workshop. European Union’s Horizon Europe program supported this research, grant agreement No 101091536, Digitalised Value Management for Unlocking the potential of the Circular Manufacturing Systems with integrated digital solutions.