Number of TisP-type compounds, mainly based on Zr and Nb, were investigated for their low-temperature specific heat and magnetic susceptibility. Results are presented for NbsX (X= Si, P, As), Zr~X (X-- Si, P, Ge, As), and V3P. We found an interesting correlation between the two electronic properties in the Zr~ (X= $i, P, Ge, As) series. A tentative interpretation of this behavior is proposed.