Abstract: <p>Silicon-containing dendrimers including Si–Si bonds (polysilane dendrimers), Si–C bonds (carbosilane dendrimers), Si–O bonds (siloxane dendrimers), O-Si–C bonds (carbosiloxane dendrimers), C-Si–N bonds (carbosilazane dendrimers) and N- &gt; Si(O₃)C bonds (silatrane dendrimers) are reviewed as well as hydrosilylation reactions in dendrimers. Applications of Si-containing dendrimers are summarized and discussed, in particular recent ones, especially in the areas of inverted monomolecular micelles, nanocomposites, films, sheets, protecting and antifouling coatings, electronic, photonic, and magnetic devices, sensors, encapsulation, purification, decontamination, catalysis and nanomedicine. This mini-review involves, in particular, carbosilane dendrimers whose synthesis and properties were developed in our research group, with applications to sensing, nanocatalysis and green fluorescent Fenton-type anticancer dendritic nanomaterials.</p> Graphical Abstract <p></p> <p>Organic, inorganic and organometallic silicon-based dendrimers and silicon-containing dendritic materials are reviewed including various recent applications in optics, electronics, encapsulation, catalysis and nanobiomedicine</p>