The structures and bonding of several Al metalloid clusters have been analyzed with the aid of density functional theory calculations. These clusters include [Al 7 {N(SiMe 3 ) 2 } 6 ] - (1), [Al 1 2 {N(SiMe 3 ) 2 } 8 ] - (2), [Al 2 2 Br 2 0 .12THF] (3) [Al 1 4 {N(SiMe 3 ) 2 } 6 I 6 ] 2 - (4), Al 1 4 (μ 8 -Si)Cp* 6 (5), [(AlEt) 8 (μ 4 -CCH 2 Ph) 5 (μ 4 -H)] (6), [(AlMe) 8 (μ 4 -CCH 2 Ph) 5 (μ 4 -C≡CPh)] (7) and [(AlMe) 7 (μ 4 -CCH 2 Me) 4 (μ 2 -H) 2 ] (8). In this paper, an attempt has been made to illustrate the relationship between the observed geometry and electron counts for these metalloid clusters.