ADVISORY/ ATG Hosts Executive Seminar Series On Increasing ROI Through Building Customer-Centric Businesses; Patricia Seybold Group Analyst Mitch Kramer to Present Keynote.

Business/Technology Editors

ADVISORY...for Tues.-Thurs. (June 5-28)

--(BUSINESS WIRE)

What:   ATG is back on the road with an eight-city North American tour
        featuring strategic partners, Patricia Seybold Group and
        PricewaterhouseCoopers, and the ATG Customer Management
        Consulting organization. These half-day seminars target senior
        business managers and vice presidents in charge of their
        organization's e-business initiatives. Attendees will:

    --  Learn about successful customer-centric organizations

    --  Gain an understanding about how their organization can benefit
        from customer-driven processes

    --  Discuss the next steps their organizations must take to
        implement customer-driven business models

    Come join ATG to learn how to drive ROI from customer initiatives
using Patricia Seybold Group's Customer Scenario(SM) Mapping
methodology. ATG and Patricia Seybold Group will reveal how leading
companies are designing customer-focused business strategies that
enhance customer loyalty while increasing revenue and profitability.

    Keynote speaker Mitchell Kramer, senior consultant/analyst from
Patricia Seybold Group, will discuss how some of the most successful
and innovative businesses are designing their organizations around
their customers. ATG will introduce ATG Dynamo e-Business Scenarios,
the powerful new technology that brings business strategies to life,
as well as describe the support ATG's Customer Management Consulting
organization offers to help customers successfully implement
scenarios.

When/Where:     All events run from 8:00 a.m. - 11:15 a.m.

                   June 5, 2001     Dallas, TX
                   June 7, 2001     Denver, CO
                   June 12, 2201    Chicago, IL
                   June 14, 2001    Atlanta, GA
                   June 19, 2001    New York, NY
                   June 21, 2001    Montreal, Canada
                   June 26, 2001    Seattle, WA
                   June 28, 2001    Redwood City, CA

Free Resource:    Everyone who attends the seminar will receive a
                  complimentary copy of The Customer Revolution, the
                  latest book by industry authority and icon, Patricia
                  Seybold.

For More Details: To find out more about the seminar series and
                  specific keynotes and presentations, visit
                  www.atg.com/revolution.

About ATG:

ATG is a leading provider of customer management and e-commerce products and services. ATG offers an integrated suite of Java(TM) application server-based products and services, 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 300 partners, ATG has delivered e-business solutions to over 730 companies worldwide including 3M, Aetna Services, Inc., American Airlines, BMG Direct, eChips, Eastman Kodak, HSBC, Herman Miller, J. Crew and Sun Microsystems. The company is headquartered in Cambridge, Massachusetts with additional locations throughout North America, Europe, Asia and Australia. www.atg.com

(c)2001 Art Technology Group, Inc. ATG, Art Technology Group, the Techmark, the ATG Logo, and Dynamo are registered trademarks, and Personalization Server and Scenario Server are trademarks, of Art Technology Group, Inc. All other trademarks are the property of their respective holders. NASDAQ:ARTG 

This press release contains forward-looking statements for purposes of the safe harbor provisions under The Private Securities Litigation Reform Act of 1995. These statements involve known and unknown risks and uncertainties that may cause ATG's actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed or implied by such forward-looking statements. Important risk factors affecting ATG's business generally may be found in ATG's periodic reports and registration statements filed with the Securities and Exchange Commission. Risk factors related to the subject matter of this press release include the possibility that the product deployment will not significantly enhance the user's Internet experience or be able to accommodate increased user volume; that customers will not be able to increase the speed of their deployments; that the products of the companies will not remain integrated or function together, either now or in the future; and that the two companies will not continue to add common customers. ATG undertakes no obligation to update any of the forward-looking statements after the date of this press release.