The Blackstone Group and GIC have invested $750 million in cloud-based workforce management services business Kronos Inc , investing alongside original investors Hellman & Friedman and JMI Equity . Hellman & Friedman will remain the majority investor. Hellman & Friedman and JMI Equity took Kronos private in 2007 in a $1.8 billion transaction. Press Release Kronos Incorporated today announced that it has entered into a definitive agreement to effect a recapitalization of the company through a $750 million equity investment by funds managed by Blackstone (NYSE:BX) and GIC. Blackstone and GIC will invest in Kronos alongside the original investors Hellman & Friedman and JMI Equity