Invisalign is made by a company called Align Technology. The company began in 1997 and a year later began selling the Invisalign system. Since that time, the company has made more than 32 million clear plastic tooth aligners. About 30,000 dentists and orthodontists have been trained by the company to administer the treatments to patients. The aligners have been used in more than 500,000 mouths all over the world.