The BDTA is a non-profit association based in EU, composed of entities and individuals that work together to shape the future of the Building Digital Twin industry. The vision of BDTA to allow the coordination of a multi criteria efficient decision-taking across all AECOO stakeholders by digitally duplicating EU building stock. Its mission to develop an Open & Trustworthy Techno economic Ecosystem to advance towards full implementation of Building Digital Twin Environments across all the stakeholders and lifecycles of AECOO* Smart and Connected Real State and Infrastructure Assets, including occupants, through professional development and community.