Steadfast Fitness and Performance is a fitness center located in Lewisville, Texas, offering a variety of services such as boot camps, personal training, group training, and nutritional plans. Their mission is to create an engaging, positive, and energetic environment that promotes health, fitness, and performance. They offer a range of classes including BootFit, TRX Live, MidDay Mix Up, and Triple S - Speed-Strength-Stability Training, as well as one-on-one training and corporate wellness programs.