Plus One Holdings company designs, develops, and manages fitness centers and health and wellness programs across the US. In addition to corporate fitness centers, Plus One Holdings also focuses on community center fitness programs, and hotel and resort spas. The company additionally trains physical therapists and personal trainers, and sells specialized training and fitness center management software. Its clients include Fortune 500 corporations, luxury hotel properties, and financial service and law firms, among others. Plus One Holdings was founded in 1986 as a personal training clinic for celebrities.