I hiaghly recommend Neventum services, I have worked with them a couple of times and they have the capacity to adapt their proposals to the needs you have for each event.
Business fairs continue to attract large crowds to the exhibition halls in the world inteiro.Para attract and impress visitors - potential customers - companies invest in fancy booths and exhibit their products so inviting. Depending on the profile of the event, these demonstration and meeting spaces are true works of architecture and scenography and luminotécnicos projects have already run up to lighting effects. In Rio and Sao Paulo exhibitors can count on the services of Riovolts Electrical Installations, doing all the electrical part of the stands. The Riovolts is one of the contractors for lighting in exhibition booths at Riocentro, the best convention center in Latin America.