This paper assesses three determinants of impact investing engagement (IIE). IIE measures social responsibility by valuing social responsible investment strategies. This paper has solely focused on Dutch pension funds. By using a correlation matrix, OLS regressions, and Ordered Logit regressions this paper discovered a significant positive correlation between newspaper coverage and IIE, and between alternative assets and IIE whilst liquidity was not a significant variable. The determinants can be used by (prospective) investees as guidelines and rough estimations of the impact investing engagement of pension funds. This gives these investees a clearer perspective on whether they would be a good match with the investing pension fund.