Leonard Riggs

Goldberg Lindsay & Co. LLC (Goldberg Lindsay & Co) is a private equity arm of LG GP Holding III LLC founded in 2001 by Alan E. Goldberg and Robert D. Lindsay. The firm is headquartered in New York.

Emergency Medical Services LP provides emergency medical services. The firms services include emergency department professional services billing, non-emergency ambulance, fixed wing air ambulance, disaster response, international services and outsourced physician practice management services. The company is headquartered in Greenwood Village, CO.

Envision Healthcare Holdings, Inc. offers an array of healthcare-related services to consumers, hospitals, healthcare systems, health plans and local, state and national government entities. The company provides and manages community-based medical transportation services, including emergency, non-emergency, managed transportation, fixed-wing air ambulance and disaster response. It operates through two reportable segments: EmCare and American Medical Response. The EmCare segment provides integrated facility-based and post-acute care physician services to healthcare facilities in the United States. EmCare provides emergency, anesthesiology, hospitalist/inpatient care, radiology, tele-radiology and surgery services as well as other administrative services. The American Medical Response segment provides ambulance and other medical transportation services in the U.S. This segment provides emergency response services primarily under long-term exclusive contracts with communities and hospitals. Its emergency medical technicians provides and manages community-based medical transportation services, including emergency 911, non-emergency, managed transportation, fixed-wing air ambulance and disaster response and utilize two types of ambulance units: Advanced Life Support and Basic Life Support. Envision Healthcare Holdings was founded in February 2011 and is headquartered in Greenwood Village, CO.

Young Presidents' Organization, Inc. is a global leadership community of over 30,000 chief executives from 142 countries. The non-profit company is based in Irving, TX and has a global presence of subsidiaries in several regions. The company's mission is to help its members become better leaders and better people. The company was founded in 1950 by Ray Hickok, Khalid Mohamed Jassem Kanoo. Thayer Smith has been the CEO of the company since 2007.

Baylor Health Care System Foundation provides community healthcare information services. The non-profit company is based in Dallas, TX.

Dallas Citizens Council operates as a membership organization for citizens council. The non-profit company is based in Dallas, TX. W. Kelvin Walker has been the CEO of the company since 2019.

AT&T Performing Arts Center provides students with access to various forms of arts, including music, theatre, dance, spoken word, cabaret, comedy, and opera. The non-profit company is based in Dallas, TX. The presentations are conducted by trained and experienced docents, and range from single-night performances to multi-week runs. Most shows are performed in Hamon Hall in the Winspear Opera House or in the 6th Floor Studio Theatre in the Wyly Theatre. Mark J. Weinstein has been the CEO of the company since 2011.

Envision Healthcare Corp. engages in the provision of healthcare services. It offers clinical solutions, home health services and ambulatory surgery solutions. The company is headquartered in Nashville, TN.

Havencrest Capital Management LLC (Havencrest Capital) is a private equity firm founded in 2017 by Christopher W. Kersey. The firm is headquartered in Dallas, Texas.