Align Technology is a global medical device company that designs, manufactures, and sells Invisalign clear aligners, iTero intraoral scanners, and exocad CAD/CAM software for orthodontics and dentistry. The company was founded in 1997 by Zia Chishti and Kelsey Wirth and is headquartered in San Jose, California. Invisalign clear aligners are used to treat misaligned teeth and are an alternative to traditional metal braces. The company's iTero intraoral scanners are used to create digital impressions of teeth and gums, which are used to create Invisalign aligners and other dental restorations. Align Technology has operations in over 40 countries and has sold over 8 million Invisalign aligners.