STAMFORD, Conn., July 31, 2003 — Gartner, Inc. (NYSE: IT and ITB), the world's leading technology research and advisory firm, today reported results for the second quarter and six months ended June 30, 2003.

Results for the quarter were in line with the Company's prior guidance:

• Total revenue was $213 million, a decrease of 10% from the prior year period.
• On a GAAP basis, net income was $13 million, or $0.13 per diluted share. Net income for the year ago quarter was $18 million, or $0.16 per diluted share.
• Normalized EPS was $0.10 per diluted share, compared with $0.17 per diluted share a year ago. Normalized EPS is a non-GAAP financial measure. See "Non-GAAP Financial Measures" for a further discussion of normalized EPS.
• Second quarter total revenue increased 4% sequentially from the first quarter of 2003, and normalized EPS rose to $0.10 from $0.04.

For the first six months of 2003:

• Total revenue was $418 million, a 4% decline from the same period last year.
• On a GAAP basis, net income was $11 million, or $0.14 per diluted share. Net income for the same six months of 2002 was $14 million, or $0.15 per diluted share.
• Normalized EPS was $0.14 per diluted share, compared with $0.25 per diluted share a year ago. See "Non-GAAP Financial Measures" for a further discussion of normalized EPS.

Share Repurchase Authorization Increased

The Board of Directors authorized an increase of $75 million in the Gartner common share repurchase program, bringing the total authorization to date to $200 million.

Business Segment Highlights

Research revenue was $118 million for the second quarter of 2003, a decrease of 3% compared with the prior year period, but a sequential increase of 2% over the first quarter of 2003. For the 2003 first half, Research revenue was $234 million, down 4% from a year ago. Contract value was $468 million at June 30, 2003, decreasing 7% from a year ago. On a sequential basis the decrease in contract value was only 1% from the prior quarter. Client retention in Research improved as compared to the first quarter, reaching 75%. Wallet share, a measure of dollar retention in the Research business remained strong at 83% for the first two quarters of this year.

Consulting revenue for the recent quarter was $67 million, decreasing 8% from the same 2002 period, but rising 8% sequentially over the first quarter of 2003. For the first six months of this year, Consulting revenue decreased 7% to $128 million from the first six months of 2002. The Consulting backlog was $91 million at June 30, 2003, versus $98 million at March 31, 2003.

Events revenue was $25 million for the 2003 second quarter, compared with $38 million in the year-ago period. The decrease was due to the timing of the Spring Symposium, which was held in the first quarter this year, instead of the second quarter as in 2002. Comparing the first six months of 2003 and 2002, which included the Spring Symposium in both periods, Events revenue increased 3% to $49 million.

Gartner maintained a strong cash position of $167 million at June 30, 2003, compared with $110 million at December 31, 2002. During the recent quarter, the Company repurchased $17 million in common stock, or $24 million year to date.

Business Outlook

Maureen E. O'Connell, chief financial and administrative officer, said, "We are starting to see traction in the Research business from our recent strategies, especially our efforts to focus the sales force on building client relationships with companies over $1 billion in sales. Research contract value, while not yet growing, is decreasing at a slower rate. Wallet share, stands at 83%, maintaining the 300 basis point gain made last quarter. And we have recorded $20 million or more in new Research business for the 11th consecutive quarter."

For full calendar 2003, the Company is maintaining its previous full year guidance.

For the third quarter ending September 30, 2003, the Company is targeting:

• Total revenue of approximately $193 million to $204 million.
• Research revenue of approximately $114 million to $116 million.
• Consulting revenue of approximately $63 million to $70 million.
• Events revenue of approximately $13 to $15 million.
• Other revenue of approximately $3 million.
• GAAP and Normalized EPS of $0.05 to $0.08 per share on 128 million diluted shares. See "Non-GAAP Financial Measures" for a further discussion of normalized EPS.

Conference Call Information
The Company has scheduled a conference call at 10:00 a.m. ET on Thursday, July 31, 2003, to discuss the Company's financial results. The conference call will also be available via the Internet by accessing Gartner's web site at www.gartner.com/investors. A replay of the webcast will be available for 30 days following the call.

Non-GAAP Financial Measures
Investors are cautioned that normalized EPS information contained in this press release is not a financial measure under generally accepted accounting principles. In addition, it should not be construed as an alternative to any other measures of performance determined in accordance with generally accepted accounting principles. This non-GAAP financial measure is provided to enhance the user's overall understanding of the Company's current financial performance and the Company's prospects for the future. We believe normalized EPS is an important measure of our recurring operations because it excludes items that may not be indicative of our core operating results. Normalized EPS is based on net income, excluding other charges, gains and losses from investments and gains from the sale of certain assets. See "Supplemental Information" at the end of this release for a reconciliation of GAAP net income and EPS to normalized net income and EPS.

Safe Harbor Statement
This press release contains statements regarding the Company's business outlook, the development of the Company's services, the demand for the Company's products and services and all other statements in this release other than recitation of historical facts are forward-looking statements (as defined in the Private Securities Litigation Reform Act of 1995). Such forward-looking statements include risks and uncertainties; consequently, actual results may differ materially from those expressed or implied thereby. Factors that could cause actual results to differ materially include, but are not limited to: ability to expand or even retain the Company's customer base in light of the adverse current economic conditions, including the impact of the September 11 terrorist attacks; the war in Iraq; ability to grow or even sustain revenue from individual customers in light of the adverse impact of the current economic conditions on overall IT spending; the duration and severity of the current economic slowdown; ability to attract and retain professional staff of research analysts and consultants upon whom the Company is dependent; ability to achieve and effectively manage growth, particularly as the Company seeks to reduce its overall workforce; ability to achieve continued customer renewals and achieve new contract value, backlog and deferred revenue growth in light of competitive pressures; ability to integrate operations of possible acquisitions; ability to carry out the Company's strategic initiatives and manage associated costs; ability to manage the Company's strategic partnerships; rapid technological advances which may provide increased indirect competition to the Company from a variety of sources; substantial competition from existing competitors and potential new competitors; risks associated with intellectual property rights important to the Company's products and services; additional risks associated with international operations including foreign currency fluctuations; and other risks listed from time to time in the Company's reports filed with the Securities and Exchange Commission, including the Company's Transitional Report on Form 10-KT for the three month transitional period ended December 31, 2002. These filings can be found on Gartner's Web site at www.gartner.com/investors and the SEC's Web site at www.sec.gov. Forward-looking statements included herein speak only as of the date hereof and the Company disclaims any obligation to revise or update such statements to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events or circumstances.