If what you are seeking your conferences, meetings or seminars is quality, professionalism and for everything to flow smoothly, the Parador de Sigüenza is the best option. 
It is in an imposing Medieval castle with historic rooms where you can meet your collaborators or present your products using the latest technology, while enjoying an atmosphere that promotes communication, and work is efficient and productive. 
Highlights include the Throne Room and its parade ground are, where musical events or presentations can be held.