St. Jude Children's Research Hospital is a pediatric treatment and research facility located in Memphis, Tennessee. Founded in 1962, it is a 501(c)(3) designated nonprofit medical corporation which focuses on children's catastrophic diseases, particularly leukemia and other cancers. In the 2021 fiscal year, St. Jude received $2 billion in donations. The hospital costs about $1.7 million dollars a day to run, but patients are not charged for their care. St. Jude treats patients up to age 21, and for some conditions, up to age 25

We would like to thank Laminar Research for sponsoring this year's St. Jude Play Live Marathon! Laminar Research is creator of the X-Plane franchise of flight simulators, including X-Plane 11, the latest desktop version. X-Plane 11 is available in both a consumer version, as well as a FAA certifiable professional version. Laminar also offers X-Plane versions for both the iPhone and iPad, as well as other mobile systems. X-Plane’s flight model, scope, versatility, customizability, and 3rd party add-ons make it the ultimate flight simulation experience for Macintosh, Windows, Linux, and mobile platforms. X-Plane…it’s what real pilots fly!

We would like to thank REX Game Studios for sponsoring this year's St. Jude Play Live Marathon! Low-Cost, High-Quality Flight Simulation Software Add-Ons REX Simulations is an award-winning developer and industry leader in flight simulation environment software for Microsoft Flight Simulator and Lockheed Martin Prepar3D

We would like to thank FlightFactor for sponsoring this year's St. Jude Play Live Marathon! What sets our models apart is system depth, which we consider to be the most important aspect of model making. The professional Boeing series is therefore licensed by Boeing and tested by real airline pilots and engineers. To stay the top model manufacturer for X-Plane we employ the best texture artists and real aeronautical engineers. We are also fortunate to receive the help from enthusiasts – sound engineers and video auditors.

We would like to thank JustFlight for sponsoring this year's St. Jude Play Live Marathon! Our talented in-house development team has produced some of our best-selling add-ons. Over the years the team has developed software for the MSFS, Prepar3D, X-Plane and Aerofly FS2 platforms and has recently created several award-winning expansions for the latest (2020) edition of Microsoft Flight Simulator.