Jolsna John Thomas is president of the Rosendin Foundation, the 501(c)(3) charitable arm of Rosendin Holdings, parent company to Rosendin Electric (Rosendin) and Modular Power Solutions (MPS). She oversees all volunteerism and community giving for the company. Since her tenure commenced, the Rosendin Foundation has awarded over $1.8 million to more than 200 nonprofit organizations throughout the United States. It also launched TRF Camp Build, a weeklong hands-on construction camp for middle schoolers nationally.

Outside of work, Jolsna serves as a former president and current director for SABA-Austin, past president and current SABA Advisory Council member of SABA North America, and former president and current champion for the SABANA Foundation. In her spare time, she enjoys entertaining and travel. Jolsna obtained her Bachelor of Business Administration from The University of Texas at Austin and her Juris Doctorate from American University Washington College of Law.