The synthesis and crystal structure of [tris[2-(benzylamino)ethyl]amine-kappa(4)N]silver(I) perchlorate, [Ag(C(27)H(36)N(4))]ClO(4) or [Ag(bz(3)tren)]ClO(4) [bz(3)tren is tris[2-(benzylamino)ethyl]amine or N,N',N''-tribenzyltris(2-aminoethyl)amine] are reported. The Ag atom is coordinated to four N atoms of the tren unit and is located 0.604 (3) A out of the trigonal plane described by the three secondary amine N atoms, away from the bridgehead N atom. Edge-to-face pi-pi interactions between the aromatic end groups, and weak interactions between Ag and arene, allow the formation of a pseudo-cage complex.