Business-to-business (B2B) are events where brief meetings between participants with similar interests are celebrated. These participants can be companies, investors, research groups, etc. That kind of events come up in several fields like sports, social life, research, etc. A close example can be found in the "Parc científic i tecnològic de la UdG" where every year two of these events were hold. They were the "Forum del Parc científic I tecnològic de la Universitat de Girona" and the "Jornades R+D+I en Tic i Salut". In this project we deal with the problem of scheduling the meetings of a B2B event