Name in Epstein's Black Book Jonathan is the president of Luminus Management, a private equity and hedge fund management company focused on the power sector. Prior to joining Luminus, Mr. Barrett was a Director in Salomon Smith Barney's Merger and Acquisition Group. Before joining Salomon Smith Barney, he spent four years at NYC based investment management firm, J Epstein & Co. and Ossa Properties. The current President and Portfolio Manager of Luminus Managament is Jonathan Dan Barrett, who is also Managing Director of LS Power Equity Advisors. He joined the fund back in 2003, prior to which he was a Director of Merger and Acquisitions Group at Salomon Smith Barney. Before he joined Salomon Smith Barney, Jonathan Barret was sharping his investment knowledge working in real estate investment. He graduated with honors in Accounting from the University of Witwatersrand (Johannesburg, South Africa).