Exhibit 99.1 ATG Reports First Quarter 2006 Financial Results; Revenue Grew 9 Percent Year-Over-Year to $24 Million; GAAP Net Income Increased 86 Percent Year-Over-Year to $2.6 Million CAMBRIDGE, Mass.--(BUSINESS WIRE)--May 2, 2006--Art Technology Group, Inc. (NASDAQ: ARTG) whose licensed and on demand technology powers e-commerce sites and supporting e-marketing and customer service solutions for the world's most customer-centric enterprises today reported financial results for the first quarter ended March 31, 2006. Revenue for the first quarter of 2006 was $24 million, a 9 percent increase over first-quarter 2005 revenue of $22 million. Net income for the first quarter of 2006, in accordance with United States Generally Accepted Accounting Principles (GAAP), was $2.6 million, or $0.02 per diluted share. This compares with net income of $1.4 million, or $0.01 per diluted share, in the first quarter of 2005. GAAP net income in the first quarter of 2006 includes equity-related compensation charges of approximately $594,000 reflecting the company's adoption of Statement of Financial Accounting Standards No. 123R ("SFAS 123R") on January 1, 2006. Cash, cash equivalents, and marketable securities as of March 31, 2006 increased $2.6 million to $36.2 million from $33.6 million as of December 31, 2005. "ATG's first-quarter performance marks a positive start to 2006," said Bob Burke, ATG's president and CEO. "As evidenced by our customer and partner response to our recent Insight Live conference, our suite of product offerings closely aligns with the demands of the marketplace. The market is in the midst of a growth cycle in the commerce arena as on-line commerce becomes just plain commerce." Julie Bradley, ATG's senior vice president and CFO, said, "Our strong first-quarter performance reflects the success of our growth strategy as we continue to experience healthy demand for our commerce and service solutions, as well as our continued expense management." First-Quarter Highlights -- Generated business from new and repeat customers such as Allstate, BT, Coca-Cola, GE/Genpact, Groupama, Harvard Business School Publishing, Hewlett-Packard, The Loyalty Group, Neiman Marcus, Orange, PayPal, Smith & Hawken, Sony, Upromise, USDA, and Urban Outfitters. -- Introduced three new OnDemand solutions including ATG Commerce OnDemand, ATG Answers OnDemand and ATG Customer Care OnDemand. ATG now offers the power of its traditional licensed products in a software-as-a-service model. -- Attained verification by the Consortium for Service Innovation for ATG Knowledge, a Wisdom-enabled assisted call center service and support solution. ATG Knowledge was among the select few products to be "KCS Verified" for Knowledge-Centered Support, a proven methodology that enables organizations to improve service levels to customers, gain operational efficiencies, and increase the organization's value to their company. In April, ATG hosted a record number of customers, partners, and prospects for the third annual ATG Insight Live conference. Among the hundreds of customers and prospects attending were AARP, Allstate, American Eagle Outfitters, Best Buy, Cabela's, Cingular Wireless, Coca-Cola, Deutsche Post, GE/Genpact, Hewlett-Packard, Hyatt Hotels, Intuit, Neiman Marcus, New York & Company, Nintendo, OfficeMax, PepsiCo, Sephora, Smith & Hawken, Symantec, Target, Urban Outfitters, Verisign and Vodafone. At the conference, ATG previewed new product developments in five areas, including live chat, dynamic navigation in ATG Commerce Search and Merchandising, a new reporting and dashboard suite, enhancements to transactional service and offer management in its service solutions. Financial Guidance and Business Outlook "Based on the underlying trends supporting our business and the continued cost savings that we experienced in Q1, we believe we are in a favorable position to extend our first-quarter momentum throughout 2006," Bradley concluded. "As a result, we are reaffirming our previously announced 2006 guidance." For 2006, the company continues to expect to grow revenue to a range of $97 million to $105 million and produce GAAP net income for the year ending December 31, 2006 of $6 million to $9 million. This guidance includes an estimated $3 million to $4 million in non-cash stock-based compensation expense, reflecting the company's adoption of SFAS 123R effective January 1, 2006. Forward-Looking Guidance Reconciliation Year Ending December 31, 2006 GAAP Guidance Non-GAAP Guidance (In FROM TO Adjustment FROM TO millions, except EPS) Revenue $ 97 $ 105 $ 0 $ 97 $ 105 Net Income $ 6 $ 9 $ 5 - $6 (a) $ 11 $ 15 Diluted EPS $ 0.05 $ 0.08 $0.04 - $0.05 (b) $ 0.10 $ 0.13 Diluted Shares 113 115 -- 113 115 (a) Estimated annual amortization of acquired intangibles of $2 million and estimated stock-based compensation expense of $3 - $4 million to be recorded for the periods indicated in accordance with Statement of Financial Accounting Standards No. 123R, Share-Based Payments, ("SFAS 123R") which is effective for periods beginning January 1, 2006. Periods prior to 2006 do not include stock-based compensation expense. (b) Estimated per diluted share effect of amortization and stock-based compensation noted in (a). Conference Call Reminder ATG management will discuss the company's first-quarter 2006 financial results, recent highlights, and business outlook for the remainder of 2006 on its quarterly conference call for investors at 10:00 a.m. ET today, May 2, 2006. The conference call will be broadcast live over the Internet. Investors interested in listening to the webcast should log on to the "For Investors" section of the ATG website, www.atg.com. The live conference call also can be accessed by dialing (706) 643-3945 or (888) 349-5690. Please refer to conference ID # 7569220. Use of Non-GAAP Financial Measures ATG is providing the non-GAAP historical financial measures presented below as the company believes that these figures are helpful in allowing individuals to better assess the ongoing nature of ATG's core operations. A "non-GAAP financial measure" is a numerical measure of a company's historical or future financial performance that excludes amounts that are included in the most directly comparable measure calculated and presented in the GAAP statement of operations. Net income (non-GAAP) and net income per share (non-GAAP), as we present them in the financial data below included in this press release, have been normalized to exclude the net effects of restructuring actions and the amortization of intangible assets and non-cash compensation charges. Management believes that these normalized non-GAAP financial measures excluding restructuring and amortization better reflect its operating performance as these non-GAAP figures exclude the effects of non-recurring or non-cash stock expenses. Management believes that these charges are not necessarily representative of underlying trends in the company's performance and their exclusion provides individuals with additional information to compare the company's results over multiple periods. Also, the company's financial results have not historically reflected the impact of non-cash compensation charges required by the adoption of SFAS 123R effective in 2006, and management believes it may be helpful to investors to present a measure of its financial results that is prepared on a basis that is comparable to its reported results for prior periods. The company uses the normalized non-GAAP financial measures internally to focus management on period-to-period changes in the company's core business. Therefore, the company believes that this information is meaningful in addition to the information contained in the GAAP presentation of financial information. The presentation of this additional non-GAAP financial information is not intended to be considered in isolation or as a substitute for the financial information prepared and presented in accordance with GAAP. In accordance with the requirements of Regulation G issued by the Securities and Exchange Commission, the table below presents the most directly comparable GAAP financial measure and reconciles the normalized non-GAAP financial metrics to the comparable GAAP measures. ART TECHNOLOGY GROUP, INC. (In thousands, except per share data) (UNAUDITED) Three Months Ended ----------------------------- March 31, December March 31, 2006 31, 2005 2005 --------- --------- --------- Net Income (GAAP) $ 2,641 $ 3,178 $ 1,408 Amortization of Acquired Intangibles 513 580 580 Net Restructuring - 62 204 Equity Related Compensation 594 - - -------- -------- -------- Net Income (non-GAAP) $ 3,748 $ 3,820 $ 2,192 ======== ======== ======== Net Income (non-GAAP) per share: Basic $ 0.03 $ 0.03 $ 0.02 Diluted $ 0.03 $ 0.03 $ 0.02 Shares used in per share calculations: Basic 110,928 110,221 108,685 Diluted 113,945 113,049 110,866 About ATG ATG (Art Technology Group, Inc., NASDAQ: ARTG) makes the software that the world's most customer-conscious companies use to create a more relevant and consistent customer experience, throughout the marketing, commerce, and service lifecycle, and across the Web, e-mail, call center, and mobile channels. Offering an alternative to the traditional silo-based approach to customer-facing applications, ATG Wisdom(TM) is the company's strategy for delivering a seamless, more compelling, and mutually valuable experience to each customer and segment. The company fulfills this strategy by providing fully integrated best-of-breed product suites installed on-premise or delivered on-demand. ATG's solutions power over 600 major brands, including A&E Networks, Airbus, American Airlines, American Eagle Outfitters, Best Buy, Boeing, Cingular Wireless, DirecTV, France Telecom, Friends Provident, Hewlett-Packard, Hotels.com, Hyatt Hotels, HSBC, InterContinental Hotels Group, Kingfisher, Louis Vuitton, Merrill Lynch, Neiman Marcus, Philips, Procter & Gamble, Symantec, T-Mobile, Target, US Army, US Navy, Warner Music, and Wells Fargo. The company is headquartered in Cambridge, Massachusetts, with additional locations throughout North America and Europe. For more information about ATG, please visit www.atg.com. (C) 2006 Art Technology Group, Inc. ATG and Art Technology Group are registered trademarks and ATG Wisdom is a trademark of Art Technology Group, Inc. All other product names, service marks, and trademarks mentioned herein are trademarks of their respective owners. This press release contains forward-looking statements about the company's estimated revenue and earnings. 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. These risks include the effect of weakened or weakening economic conditions or perceived conditions on the level of spending by customers and prospective customers for ATG's software and services; financial and other effects of cost control measures; quarterly fluctuations in ATG's revenues or other operating results; customization and deployment delays or errors associated with ATG's products; the risk of longer sales cycles for ATG's products and ATG's ability to conclude sales based on purchasing decisions that are delayed; satisfaction levels of customers regarding the implementation and performance of ATG's products; ATG's need to maintain, enhance, and leverage business relationships with resellers and other parties who may be affected by changes in the economic climate; ATG's ability to attract and maintain qualified executives and other personnel and to motivate employees; activities by ATG and others related to the protection of intellectual property; potential adverse financial and other effects of litigation (including intellectual property infringement claims) and the release of competitive products and other activities by competitors. Further details on these risks are set forth in ATG's filings with the Securities and Exchange Commission (SEC), including the company's annual report on Form 10-K for the period ended December 31, 2005, as filed with the SEC. These filings are available free of charge on a website maintained by the SEC at http://www.sec.gov. ART TECHNOLOGY GROUP, INC. CONDENSED CONSOLIDATED BALANCE SHEETS (In thousands) (UNAUDITED) Three Months Ended -------------------------- March December March 31, 31, 31, 2006 2005 2005 ------- ------- ------- Assets Current assets: Cash, cash equivalents and marketable securities $36,155 $33,569 $27,350 Accounts receivable, net 20,425 21,459 20,734 Prepaid expenses and other current assets 1,618 1,130 2,554 ------- ------- ------- Total current assets 58,198 56,158 50,638 Property and equipment, net 3,458 2,995 2,705 Intangible assets, net 4,346 4,859 6,598 Other assets 1,274 1,406 2,970 Goodwill 27,347 27,347 27,458 ------- ------- ------- Total long-term assets 36,425 36,607 39,731 ------- ------- ------- Total assets $94,623 $92,765 $90,369 ======= ======= ======= Liabilities and Stockholders' Equity Current liabilities: Accounts payable $ 3,210 $ 2,719 $ 1,989 Accrued expenses 11,149 13,359 11,891 Deferred revenue 21,549 21,113 22,344 Accrued restructuring, current portion 2,243 3,012 5,398 Other current liabilities 238 254 327 ------- ------- ------- Total current liabilities 38,389 40,457 41,949 Accrued restructuring, less current portion 1,938 2,085 3,903 Capital lease obligations, less current portion 42 63 99 ------- ------- ------- Total long-term liabilities 1,980 2,148 4,002 Stockholders' equity 54,254 50,160 44,418 ------- ------- ------- Total liabilities and stockholders' equity $94,623 $92,765 $90,369 ======= ======= ======= ART TECHNOLOGY GROUP, INC. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (In thousands, except per share data) (UNAUDITED) Three Months Ended ----------------------------- March December March 31, 31, 31, 2006 2005 2005 -------- -------- -------- Revenues: Product license $ 8,100 $ 10,051 $ 7,383 Services 15,856 15,635 14,611 -------- -------- -------- Total Revenue 23,956 25,686 21,994 Cost of Revenues: Product license 498 403 593 Services 6,665 6,537 5,411 -------- -------- -------- Total cost of revenues 7,163 6,940 6,004 -------- -------- -------- Gross Profit 16,793 18,746 15,990 Gross Profit % 70% 73% 73% Operating Expenses: Research and development 4,827 4,373 4,589 Sales and marketing 6,923 8,304 6,799 General and administrative 2,680 2,792 2,988 Restructuring - 62 204 -------- -------- -------- Total Operating Expenses 14,430 15,531 14,580 Income from Operations 2,363 3,215 1,410 Interest and other income, net 278 (53) 11 -------- -------- -------- Income before tax provision 2,641 3,162 1,421 Provision (benefit) for income taxes - (16) 13 -------- -------- -------- Net Income $ 2,641 $ 3,178 $ 1,408 ======== ======== ======== Earnings Per Share Basic $ 0.02 $ 0.03 $ 0.01 Diluted $ 0.02 $ 0.03 $ 0.01 Shares Outstanding Basic 110,928 110,221 108,685 Diluted 113,945 113,049 110,866 ART TECHNOLOGY GROUP, INC. (In thousands, except per share data) (UNAUDITED) Three Months Ended ------------------------ March December March 31, 31, 31, 2006 2005 2005 ------- -------- ------- Equity-Related Compensation: Cost of Revenues $ 137 $ - $ - Research and Development 154 - - Sales and Marketing 173 - - General and Administrative 130 - - ------ ------- ------ Total Equity-Related Compensation $ 594 $ - $ - ====== ======= ====== Depreciation and Amortization: Depreciation $ 537 $ 476 $ 511 Amortization 513 580 580 Total Depreciation and Amortization $1,050 $ 1,055 $1,090 ====== ======= ====== Capital Expenditures: Purchases of Property and Equipment $1,001 $ 940 $ 108 ====== ======= ====== Net Increase in cash, cash equivalents and marketable securities $2,586 $ 3,653 $ 843 ====== ======= ====== End of Period Statistics: Number of Employees 321 309 313 Number of Hosted Sites 48 n/a n/a CONTACT: Art Technology Group, Inc. Julie Bradley, 617-386-1005 cfo@atg.com or Jim Buckley 617-542-5300 artg@investorrelations.com