[30]Trithiadodecaazahexaphyrins are 30 π-electron planar analogues of hexaphyrins that have received a special attention in a relation to their non-aromatic nature. Exceptional chemical versatility and architectural flexibility of these macrocycles allow modification of their peryphery  as well as an insertion of up to three transition metals within their central cavity and – as a result – the fine-tuning of their physical and chemical properties. Owing to their intense absorption in the visible region of the solar spectrum, complementary to that of porphyrins and phthalocyanines, high extinction coefficients, and high optical and thermal stabilities , thiadiazoloporphyrinoids evolve as promising light-harvesting building blocks, complementary to tetrapyrrolic macrocycles and carbon nanostructures such as fullerenes, carbon nanotubes and graphene. In this communication a brief summary of our recent work in this area is given.