The world's best-selling pet doors, Staywell products are marketed in more than 40 countries worldwide. The Staywell brand is one of the properties of Radio Systems Corporation, Knoxville, Tennessee, USA.

Radio Systems Corporation is the industry leader in consumer pet electronics, including training, containment, safety and lifestyle product solutions. The company introduced the first do-it-yourself electronic fence to the pet market in 1991 and the first wireless fence in 1998. Under the popular PetSafe brand, the company's product line-up includes: kennels and electronic underground fences; bark control systems; a selection of remote training products; pet doors; pet identification collars; heated wellness products; pet feeders and a growing line of lifestyle products.

Radio Systems Corporation maintains offices in the United States, Canada, England, Belgium, and China with more than 400 employees worldwide. The company is privately held.

The company strives to offer the most trusted brands in the pet ownership experience. Its management recognizes that pets are members of the family, and that pet-parents want to keep them safe, healthy, and happy.