This paper investigates the role of the forestry sector’s roundtables in Castilla-La Mancha and their effect on developing a forest bioeconomy. Following a Grounded Theory approach, several semi-structured interviews with key stakeholders have been conducted. The data have been analysed qualitatively and assessed levels of participation using Arnstein’s “Ladder of Citizen Participation.” Results reveal that these roundtables generally function as consultative platforms, oscillating between information sharing and partial collaboration rather than exerting significant decision-making power. While certain achievements—notably in forest management, certification, and fire-prevention initiatives—were noted, the lack of consistent indicators, limited involvement of research entities, and scarcity of follow-up mechanisms constrain the roundtables’ transformative potential. Stakeholders also identified key challenges in the main areas of forestry: environmental (climate change, wildfires), social (workforce deficits, lack of professionalization), and economic (insufficient funding, innovation gaps). These results indicate that forestry sectoral roundtables in Castilla-La Mancha can be placed at intermediate levels of Arnstein’s ladder, highlighting that deeper stakeholder engagement and shared authority could foster broader bioeconomic development. Finally, the conclusions underscore the necessity of (i) formalizing decision-making rules, (ii) strengthening stakeholder representativeness—particularly smaller owners and researchers, (iii) establishing and tracking clear progress indicators, and (iv) enhancing transparency.