Since 1928, United States Welding has been a provider of welding, atmospheric gases and liquid nitrogen. The company expanded to become one of the leading suppliers of medical oxygen to numerous regional home health care providers. United States Welding also offers rare materials, such as neon, krypton and xenon. It is a source for welding-related supplies of all types and offers service to businesses in Colorado, Utah, Wyoming, Idaho, Nebraska and Kansas. The company operates from more than 15 branch offices. United States Welding is located in Denver.