Antimony-based ternary metal sulfides such as Ni9Sb2S8, Cu3SbS3, and CoSbS have been used as counter electrodes (CEs) in bifacial Dye-Sensitized Solar Cells (DSSCs). The electrochemical results show that antimony-based ternary sulfides have the highest peak current density (JPC), lower peak-to-peak separation (EPP) and charge transfer resistance (RCT) than the corresponding binary sulfides. Notably, under front-side illumination, the highest short circuit current (JSC) of 10.19 mA cm−2 is reached for Cu3SbS3, 9.77 mA cm−2 for Ni9Sb2S8 and 10.44 mA cm−2 for CoSbS, all of them are greater than Pt CE. The efficiency of the CoSbS CE is ∼ 97%, Ni9Sb2S8 CE is ∼ 84% and Cu3SbS3 CE is ∼ 66% when normalized with the efficiency of the Pt CE (∼5.54%). The performance of these ternary sulfide CEs is also evaluated for rear-side illumination. This report elucidates the new class of materials that might be used as a potential counter electrode for bifacial DSSCs.