Meet the team

Jim Parker

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Jim is a lawyer by trade, having received both his undergraduate and law degrees from The University of Texas. After serving as law clerk to a federal judge and as an Assistant Attorney General of Texas, Jim joined the San Antonio law firm of Oppenheimer, Rosenberg, Kelleher, and Wheatley. As luck would have it, one of the co-founders of that law firm, Herb Kelleher, also co-founded a small Texas airline called Southwest, and Jim soon stumbled into the airline industry. After serving as outside counsel for Southwest for seven years, Jim became General Counsel for 15 years, and ultimately served as Southwest’s CEO for three years.

During Jim’s tenure as CEO, Southwest was named as the most admired airline, and one of the three most admired companies in America by Fortune magazine; Airline of the Year by Air Transport World magazine; and one of the World’s Most Socially Responsible Companies by Global Finance magazine. Jim was also named co-CEO of the Year in 2001 by, and was named to Institutional Investor’s list of Best CEO’s in America in 2004. Jim’s proudest accomplishment, however, comes from the fact that Southwest Airlines was able to protect the jobs of all of its employees, with no furloughs or pay cuts in the aftermath of 9/11, while also remaining profitable every year and, in fact, every quarter during his tenure as CEO. Jim is presently retired from the airline industry, and serves on the Board of Directors of the successful Texas Roadhouse restaurant company, and also serves on the Advisory Council for the MIT Sloan Business School Leadership Center.

Jim is also the author of the recently released book, published by Wharton School Publishing, entitled Do the Right Thing – How Dedicated Employees Produce Loyal Customers and Large Profits.


Jim Wimberly


Jim has over 4 decades of executive leadership experience in the aviation industry. After graduating from the University of Texas-Permian Basin in 1975 with a BBA in Aviation Management, Jim worked as a supervisor at Madison-Cooper Airport in Waco, Texas. In 1977, he joined the City of Houston’s Aviation Department and rose to the position of Airport Manager at William P. Hobby Airport in 1980. When Houston acquired Ellington Air Force Base as a general aviation reliever airport in 1982, Jim’s responsibilities were expanded to include management of both airports.

In 1985, Jim was named Vice President of Ground Operations for Southwest Airlines in Dallas, Texas. Given his previous experience, he was also named Emergency Director. In 1991, the Board of Directors for Southwest appointed Jim to the Executive Planning Committee, thereby elevating his position to Executive Officer, and in 1998, he was promoted to Executive Vice President. In 1999, Jim was named Chief Operating Officer and for the next 6 years he directed among many other duties, airport security, charters, environmental affairs, flight operations, fuel administration, ground operations, maintenance and engineering, properties and facilities, and safety. Jim served on the Air Transport Association’s Senior Advisory Committee and was a member of the FAA Air Traffic Management Steering Group.


Stephen Alexander

Stephen founded Texas Aviation Partners in 2007 with an eye toward public-private partnerships and how they can benefit the taxpayer.  He began his professional career by serving as a firefighter and emergency medical technician with the Westlake Fire Department in 1990.  After fourteen years of service and promoting to the rank of Captain/ Shift Commander, Stephen took an early retirement to pursue his budding property management firm, Muldoon Interests.  The firm managed and owned marinas, multi-family properties, entertainment venues, commercial office buildings, retail stores, and leisure homes.  As Muldoon Interests continued to grow, Stephen identified a need for solid contractors to service the managed properties.  Muldoon Marine was founded, with a specialty towards marina general contracting and development.  Clients included Randolph Air Force Base Marina on Canyon Lake, high-profile customers on Lake Austin, and The Moorings located in Port Aransas, Texas.   

When Stephen founded Texas Aviation Partners, he did so with the idea of bringing private business acumen to the publicly owned property sector, with the mantra of “There are some things the public sector does well.  There are many things the private sector does well.  If you bring the two together, while always thinking of the taxpayer, you create an environment to succeed.” 


Cassidy berenato
director of marketing & business development

Cassidy graduated from the University of Texas at Austin with a Bachelor of Science in Public Relations and a minor in Business Foundations. She joined the Texas Aviation Partners team in 2010 and brought with her extensive knowledge of property and project management. 

Although new to the aviation game, Cassidy dove in headfirst and applied her previous experience to foster growth and improvement at San Marcos Regional Airport.  Within her first year, she was able to increase the airport’s revenue by more than 50% without raising rental rates. 

Cassidy supervises all emailing marketing, press, and social media content but her main responsibilities focus on real estate and project management. 

New and prospective tenants at all TAP-managed locations work directly with Cassidy from negotiations to lease execution. Her knowledge of airport regulations and City/County approval processes ensure a smooth and coordinated leasing effort for all parties.


director of operations & administration


Stacey joined Texas Aviation Partners in 2012 after working for a large waste management company for 13 years. With a background in accounting, property management, and HR, she was well equipped to manage the multiple aspects of a fast paced and growing team. 

As the Director of Operations and Administration, Stacey plays a critical role in the management of TAP at all four locations. In addition to overseeing accounting and human resources for the entire company, Stacey manages the day to day operations of San Marcos Regional. You will frequently hear her voice on the radio doing airport safety checks and supervising construction operations.