Pegasus Capital Advisors L.P. is a private equity investment firm founded in 1995 by former co-founder of Apollo Management and Drexel Burnham Lambert lawyer, Craig Cogut, who has been its managing partner.
 Pegasus specializes in sourcing, buying, and building middle-market companies that compete on the basis of sustainability and resource efficiency.
The Predators' Ball: The Inside Story of Drexel Burnham and the Rise of the Junk Bond Raiders, by "Wall Street Journal" writer Connie Bruck, largely recounts the rise of Michael Milken, his firm Drexel Burnham Lambert, and the leveraged buyout boom they helped to fuel in the 1980s.
Trimaran Capital Partners is a middle-market private equity firm formerly affiliated with CIBC World Markets.
 Trimaran is headquartered in New York City and founded by former investment bankers from Drexel Burnham Lambert.
 Trimaran’s predecessors were early investors in telecom and Internet businesses, most notably backing Global Crossing in 1997.
 Trimaran also led the first leveraged buyout of an integrated electric utility.
Littlejohn & Co. is a private equity firm focused on leveraged buyout transactions, leveraged recapitalizations of middle-market companies and distressed securities.
 The firm focuses on companies requiring an operational turnaround particularly in a variety of industrial and service sectors.
Donald P. Kelly (February 24, 1922 – March 18, 2010) was a Chicago businessman, most well known for the 1987 leveraged buyout of the Beatrice Companies.
 He was the chairman of Kohlberg Kravis Roberts & Company, the firm that, along with Drexel Burnham Lambert, financed the acquisition of the Beatrice conglomerate for over $6 billion.
 The deal was one of the most profitable of the 1980s.
 Later in life he was the CEO of D.P. Kelly and Associates, and trustee of the Museum of Science and Industry.
Golden Gate Capital is an American private equity firm based in San Francisco.
 The firm makes investments in a number of select industries, including technology, financial services, retail and industrial, through leveraged buyout transactions as well as significant minority purchases and growth capital investments.
 s of 2017 , it had over $14 billion in assets under management (AUM).
The "highly confident letter" was a financing tool created by investment bankers at Drexel Burnham Lambert, dominated by Michael Milken, in the 1980s.
 Its objective was to enable corporate raiders to launch leveraged buyout (LBO) offers without the debt component of their financing package fully in place.
Roderick Maltman Hills (March 9, 1931 – October 29, 2014) served as chairman of the U.S. Securities and Exchange Commission between 1975 and 1977.
 Later he worked at the investment bank of Drexel Burnham Lambert and then at the law firm of Donovan, Leisure, Newton & Irvine.
 In 1962, he founded the law firm of Munger, Tolles, Hills, and Rickershauser (now Munger, Tolles & Olson) along with six other lawyers.
 He was also Founder and Chairman Emeritus of the US-ASEAN Business Council.
Apollo Global Management, LLC is an American private equity firm, founded in 1990 by former Drexel Burnham Lambert banker Leon Black.
 The firm specializes in leveraged buyout transactions and purchases of distressed securities involving corporate restructuring, special situations, and industry consolidations.
 Apollo is headquartered in New York City, and also has offices in Purchase, New York, Los Angeles, Houston, London, Frankfurt, Luxembourg, Singapore, Hong Kong and Mumbai.
CCMP Capital is an American private equity investment firm that focuses on leveraged buyout and growth capital transactions.
 Formerly known as JP Morgan Partners, the investment professionals of JP Morgan Partners separated from JPMorgan Chase on July 31, 2006.
 CCMP has invested approximately $12 billion in leveraged buyout and growth capital transactions since inception.
 In 2007, CCMP was ranked #17 among World's largest private equity funds.

Question: What is the name of the firm which specializes in leveraged buyout transactions and purchases of distressed securities involving corporate restructuring and industry consolidations which is founded by Drexel Burnham Lambert lawyer who is also founder of Pegasus Capital Advisors L.P.
Answer: Apollo Global Management, LLC