Ugo Guidi's house and garden have had excellent visits to men of culture of the 20th century, testified by letters, writings, poems, drawings, paintings and sculptures by O. Rosai, A. Funi, E. Treccani, G. Migneco, E Greco, Mirko B., A. Bueno, A. Soffici, L. Dallapiccola, G. Papini, B. Cassinari, G. Dova, M. Maccari, A. Gatto, P. Conti, P. Santi, L. Bianciardi , C. Carrà, R. De Grada, A. Dazzi, U. Capocchini, R. Carrieri, N. Lisi, M. Luzi and many others.
Since 2007, the Museum has been supported by the "Friends of the Ugo Guidi Museum - Onlus" Association which promotes cultural and educational initiatives in the museum and in the Apuan-Versilian territory, setting up contemporary art exhibitions, small concerts and book presentations. The Association and the Museum collaborate on educational projects, also organizing papier-mâché art courses, guided educational visits and workshops. The collaboration also extends to universities, academies, foundations and art galleries. The Museum has been open twice for the FAI Spring Days and for years it has been a member of the European Heritage Days of Mibact. With the "Census of Tuscan collections between the 1800s and 1900s" of the MIBACT "Unified Computer System for Archival Superintendencies" (SIUSA), Ugo Guidi's correspondence is included in the "Personal Archives".