Santa Clara, CA (September 30, 2002) ... Align Technology, Inc. (Nasdaq: ALGN), the inventor of Invisalign^®, a proprietary method of straightening teeth without wires and brackets, has named financial veteran Eldon M. Bullington, 51, as Vice President, Finance and Chief Financial Officer , effective immediately. Bullington, who has held the top finance post at medical device and technology firms, brings to Align more than two decades of experience in financial operations and management. He joins Align from Milpitas, CA-based Verplex Systems, Inc. where he served as Vice President, Finance and CFO. Prior to that, he served under Align President and CEO Thomas M. Prescott at Sunnyvale, CA-based Cardiac Pathways as Vice President, Finance and Chief Financial Officer. Bullington replaces Stephen J. Bonelli, who has left the Company to pursue other business interests.

"Eldon brings a wealth of experience and solid credentials to the Align management team," Prescott stated. "His leadership, professional acumen and positive relationships with members of the financial community make him an ideal fit for the position."

Bullington joins Align from Verplex Systems where he was recruited to provide finance and operations leadership for the early stage electronic design and automation company. During his tenure he established financial controls and policies, software revenue recognition disciplines, business plans and cultivated investment banking relationships. Prior to that, Bullington spent two years at Cardiac Pathways where he helped lead the successful financial turnaround and profitable sale of Cardiac Pathways to Boston Scientific (NYSE:BSX). While there, Bullington provided finance and operations leadership at the Nasdaq-listed cardiology device company. Partnering with the senior leadership team, he was instrumental in transforming that company from a product development entity into a growing commercial business moving toward profitability.

Prior to Cardiac Pathways, Bullington was Vice President and Chief Financial Officer at San Mateo, CA-based Saraide, Inc., a private information services company. He also served in executive financial management roles at Verifone, Inc. and Radius, Inc., both Bay Area technology companies and prior to that spent five years with IBM providing business and financial planning leadership at IBM North American Operations and its System Technology Division.

Bullington, who began his financial career with Arthur Andersen, graduated Cum Laude from California State University, Long Beach with a BS degree in Business Administration and Accounting. He lives with his family in the San Francisco Bay area.

About Align Technology, Inc.

Align Technology designs, manufactures and markets Invisalign, a proprietary new method for treating malocclusion, or the misalignment of teeth. Invisalign corrects malocclusion using a series of clear, nearly invisible, removable appliances that gently move teeth to a desired final position. Because it does not rely on the use of metal or ceramic brackets and wires, Invisalign significantly reduces the aesthetic and other limitations associated with braces. Invisalign is appropriate for treating adults and older teens. Align Technology was founded in March 1997 and received FDA clearance to market Invisalign in 1998.

To learn more about Invisalign or to find a certified Invisalign doctor, please visit www.invisalign.com or call 1-800-INVISIBLE.

This news release may contain forward-looking statements based on Align Technology's current expectations. These forward-looking statements involve risks and uncertainties. A number of important factors could cause actual results to differ materially from those in the forward-looking statements. These factors include Align Technology's ability to achieve profitability, the ability to control costs and continue to achieve efficiencies, the adoption by orthodontists, dentists, and consumers of Invisalign, Align Technology's successful enforcement of its intellectual property and avoidance of infringement on third party patents, Align Technology's ability to establish and maintain reliable, high-volume manufacturing capacity in the U.S. and internationally and Align Technology's ability to manage its significant growth and retain its key personnel. These factors, as well as other factors that could cause actual results to differ materially, are discussed in more detail in Align Technology's Annual Report on Form 10-K, Quarterly Report on Form 10-Q, as well as in other reports and documents filed from time to time with the Securities and Exchange Commission.