This paper investigates the impact of firms' cash holdings and ownership concentration on the firms' value for a sample of non-financial listed firms in Australia. In particular, we examined whether ownership concentration affects a firm's value by curbing excessive cash holding. As we predicted, cash holding has a significant impact on the valuation of the firms after controlling for a firm's dividends, INVESTMENT and financing decisions. Our results provide significant support for our conjecture that corporate ownership moderates the impact of cash on firm valuation. For closely held firms, with poor corporate governance practices, the cash holding have a negative impact on the valuation and vice versa. These results are consistent with managerial entrenchment hypothesis.