The Ridge Tool Company is an American manufacturing company that makes and distributes tools under the Ridgid brand name. The company was founded in 1923 in North Ridgeville, Ohio. In 1943, it relocated to its current location in Elyria, Ohio, and in 1966, it became a wholly owned subsidiary of Emerson Electric. RIDGID manufactures more than 300 different types of tools. They also sell power tools, which are mostly made by TTI (Techtronic Industries Company Limited, a Hong Kong-based multinational company).
They offer a full lifetime warranty against material and workmanship defects on all of their wet/dry vacuums. You can view their warranty and initiate a warranty claim from the RIDGID warranty page.