AGL is a private credit investment firm specializing in innovative actively-managed credit solutions based on bank loans. It aims to build a leading CLO franchise. “Few fixed income products truly target the return objective of institutional investors” said Gleysteen. “AGL was expressly formed to fill this void in the fixed income solution set.”

The firm's institutional investment partners include a subsidiary of The Abu Dhabi Investment Authority and a large US state pension fund, which together committed equity investments totaling $650 million. In addition, the family office of Thomas H Lee made an investment in AGL.

Prior to AGL, Gleysteen had two employers, JP Morgan and CIFC, a loan asset manager he founded. At the bank, he served as lead banker on many of the largest LBO, merger and acquisition and re-structuring financings in the 1980s and 1990s, running global loan syndications, having responsibility for its global corporate loan portfolio, and serving as corporate chief credit officer. More recently, he built CIFC Asset Management into a prominent private debt manager with $13 billion in assets under management, serving as founder and CEO from 2005 to 2014.

Lee is chairman at Lee Equity Partners. Prior to forming Lee Equity, he served as chairman and CEO of Thomas H Lee Partners, and its predecessors, which he founded in 1974.  Over the past 36 years, Lee has been responsible for investing in excess of $10 billion of capital in more than 100 transactions.  Prior to founding THLP, Lee was with the First National Bank of Boston, where he was a vice president and led the high technology lending group. Previously, Lee was a securities analyst in the institutional research department of L F Rothschild & Company in New York.