1999/00 Co-operation as a free-lancer with PAULO PARRA DESIGN studio, Lisboa 1997/98 Co-operation as a consultant at Precobel - Projectos e Construções da Benedita, Lda. (architecture cabinet), Benedita 1995/96 Co-operation as a consultant at ENAFIL - Emp. Nacional de Filtros, Lda. (National Co. of Filters, Ltd.), Caldas da Rainha 1994/95 Co-operation as a free-lancer at ICEL - Ind. de Cutelarias da Estremadura, Lda. (Cutleries Industry of Estremadura, Ltd), Benedita Co-operation at EUREKA - Gabinete de publicidade, Lda. (Advertisement Cabinet, Ltd.), Caldas da Rainha 1993/94 Co-operation as a free-lancer at Mão de Obra Design studio, Caldas da Rainha