Wi, Inc. (pronounced as an initialism, "double-u i.") is an American medical device development corporation incorporated and headquartered in Englewood, CO. Wi specializes in in-vitro diagnostic microfluidic disposable cartridges and instruments, biological assays on and off disposable cartridges, and electromechanical devices. In 2004, Wi was a Gold Winner of the Medical Design Excellence Awards for the LifePort Kidney Transporter.