ATG to Present At the Banc of America Securities Technology Week Conference On February 5; Company to Broadcast Presentation Live Over the Internet.

Business/Technology Editors

CAMBRIDGE, Mass.--(BUSINESS WIRE)--Feb. 1, 2001

ATG (Art Technology Group, Inc., Nasdaq: ARTG), developer of the ATG Dynamo(R) e-Business Platform for online customer management and electronic commerce, today announced that company management will be presenting at the Banc of America Securities Technology Week 2001 conference, being held at The Ritz-Carlton San Francisco, California, on February 5. Founder and Chief Executive Officer Jeet Singh and Chief Financial Officer Ann Brady will review the company's recent business and financial highlights and discuss ATG's growth opportunities.

In conjunction with this appearance, ATG will broadcast its presentation live from the conference on Monday, February 5 at 1:15 p.m. (ET). Investors interested in the Webcast should click onto the "Banc of America Securities Technology Week 2001" links located in the "Investor Relations" section of ATG's Web site, located at www.atg.com, at least 15 minutes prior to the event's broadcast.

About ATG

ATG is a leading provider of online customer relationship management and electronic commerce products and services. ATG offers an integrated suite of Java(TM) application server-based products, as well as related application development, integration, and support services. The ATG Dynamo(R) e-Business Platform enables Global 2000 enterprises, as well as new businesses using the Internet as their primary business channel, to understand, manage, and build their online customer relationships and to more effectively market, sell, and support their products and services over the Internet.

With its network of more than 250 solution partners, ATG has delivered e-business solutions to 670 companies worldwide including 3M, Aetna Services, Inc., American Airlines, Blockbuster, BMG Direct, ChipCenter, Eastman Kodak, HSBC, Herman Miller, J. Crew, Sun Microsystems, and Target. The company is headquartered in Cambridge, Massachusetts with additional locations throughout North America, Europe, Asia, and Australia.