IHS Inc. Announces First Quarter 2006 Results Driven By Eleven Percent Revenue Growth

Business Wire, March 28, 2006

USE OF NON-GAAP FINANCIAL MEASURES

EBITDA is defined as net income plus net interest, taxes, depreciation and amortization. Adjusted EBITDA excludes non-cash items, gains and losses on sales of assets and investments and other items that management does not utilize in assessing operating performance (as further described in the attached financial schedules). Management believes that it is useful to eliminate these items in order to focus on what it deems to be a more reliable indicator of ongoing operating performance. Management believes that investors may find adjusted EBITDA useful for the same reasons, although investors are cautioned that non-GAAP financial measures, such as adjusted EBITDA, are not a substitute for GAAP disclosures.

Non-GAAP results are presented only as a supplement to the financial statements based on U.S. generally accepted accounting principles (GAAP). Reconciliations of comparable GAAP measurements to non-GAAP measurements, such as EBITDA and adjusted EBITDA, are provided within the schedules attached to this release.

IHS FORWARD-LOOKING STATEMENTS

This release may contain forward-looking statements as defined in the Private Securities Litigation Reform Act of 1995. Forward-looking statements are statements that are not historical facts. Such statements may include financial projections and estimates and their underlying assumptions, statements regarding plans, objectives and expectations with respect to future operations, products, and services, and statements regarding future performance. Forward-looking statements are generally identified by the words "expect," "anticipate," "believe," "intend," "estimate," "plan" and similar expressions. Although IHS and its management believe that the expectations reflected in such forward-looking statements are reasonable, investors are cautioned that forward-looking information and statements are subject to various risks and uncertainties--many of which are difficult to predict and generally beyond the control of IHS--that could cause actual results and developments to differ materially from those expressed in, or implied or projected by, the forward-looking information and statements. These risks and uncertainties include those discussed or identified by IHS from time to time in its public filings. Other than as required by applicable law, IHS does not undertake any obligation to update or revise any forward-looking information or statements. Please consult our public filings at www.sec.gov or www.ihs.com.

About IHS Inc. (www.ihs.com)

IHS (NYSE: IHS) is one of the leading global providers of critical technical information, decision-support tools and related services to customers in a number of industries including energy, defense, aerospace, construction, electronics, and automotive through two operating segments, Engineering and Energy. Our Engineering and Energy segments each represent approximately one-half of IHS' total revenues. We serve customers ranging from governments and large multinational corporations to smaller companies and technical professionals in more than 100 countries. Our customers rely on our offerings to facilitate decision making, support key processes and improve productivity. We have been in business for more than 45 years and employ more than 2,300 people around the world.