Market Leading Capabilities for the Valuation & Management of Risk for CRE Assets

Forward Looking Statements & Non-GAAP/Non-IFRS Disclosures Altus Group Certain information in this presentation may constitute "forward-looking information" within the meaning of applicable securities legislation. All information contained in this press release, other than statements of current and historical fact, is forward-looking information. Forward-looking information includes, but is not limited to, the discussion of our business and our objectives, goals, strategies, priorities, intentions, plans, beliefs, expectations and estimates, and our expectations of the business, its operations, financial performance and condition. Generally, forward-looking information can be identified by use of words such as "believe, "expect", "anticipate", "estimate", "intend", "may", "will", "would", "could", "should", "continue", "plan", "goal", "objective", "remain" and other similar expressions and the negative of such expressions, although not all forward-looking information contain these identifying words. All of the forward-looking information in this press release is qualified by this cautionary statement. Forward-looking information is not, and cannot be, a guarantee of future results or events. Forward-looking information is based on, among other things, opinions, assumptions, estimates and analyses that, while considered reasonable by us at the date the forward- looking information is provided, inherently are subject to significant risks, uncertainties, contingencies and other factors that may cause actual results, performance or achievements, industry results or events to be materially different from those expressed or implied by the forward-looking information. The material factors or assumptions that we identified and applied in drawing conclusions or making forecasts or projections set out in the forward-looking information include, but are not limited to: our ability to meet its "Revenue" and "Adjusted EBITDA" targets, including assumptions on Altus Analytics Bookings growth, subscription and maintenance renewal rates, client retention rates, growth in its Data Solutions and Appraisal Management businesses, assumptions on the Argus Software revenue model, license sales, cloud conversion (including timing and rate), the 2021 post-acquisition financial results of Reonomy being in line with historical results, expected revenue, cost, and cost avoidance synergies will be realized, and assumptions on other Altus Analytics contributors, expenses, operating leverage, and foreign exchange; engagement and product pipeline opportunities in Altus Analytics will result in associated definitive agreements; settlement volumes in the Property Tax business will occur on a timely basis and that assessment authorities will process appeals in a manner consistent with expectations; the successful execution of our business strategies; consistent and stable economic conditions or conditions in the financial markets; consistent and stable legislation in the various countries in which we operate; no disruptive changes in the technology environment; the opportunity to acquire accretive businesses and the absence of negative financial and other impacts resulting from strategic investments or acquisitions on short terms results; the successful integration of acquired businesses; and the continued availability of qualified professionals. Projections may also be impacted by macroeconomic factors, in addition to other factors not controllable by the Company. We have also made certain macroeconomic and general industry assumptions in the preparation of such forward-looking information. We believe that the expectations reflected in forward-looking information are based upon reasonable assumptions; however, we can give no assurance that actual results will be consistent with the forward-looking information. Not all factors which affect the forward-looking information are known, and actual results may vary from the projected results in a material respect, and may be above or below the forward-looking information presented in a material respect. The COVID-19 pandemic has cast additional uncertainty on each of these factors and assumptions. There can be no assurance that they will continue to be valid. Given the rapid pace of change with respect to the COVID-19 pandemic, it is difficult to make further assumptions about these matters. The duration, extent and severity of the impact the COVID-19 pandemic, including measures to prevent its spread, will have on our business is uncertain and difficult to predict at this time. As of the date of this press release, many of our offices and clients remain subject to limitations and restrictions set to reduce the spread of COVID-19, and a significant portion of our employees continue to work remotely. Inherent in the forward-looking information are known and unknown risks, uncertainties and other factors that could cause our actual results, performance or achievements, or industry results, to differ materially from any results, performance or achievements expressed or implied by such forward-looking information. Those risks, uncertainties and other factors that could cause actual results to differ materially from the forward-looking information include, but are not limited to: the general state of the economy; the COVID-19 pandemic; currency; our financial performance; our financial targets; the commercial real estate market; industry competition; our acquisitions; our cloud subscriptions transition; software renewals; professional talent; third party information; enterprise transactions; new product introductions; technological change; intellectual property; technology strategy; information technology governance and security; our product pipeline; property tax appeals; legislative and regulatory changes; fixed-price and contingency engagements; appraisal and appraisal management mandates; the Canadian multi-residential market; customer concentration and the loss of material clients; interest rates; credit; income tax matters; health and safety hazards; our contractual obligations; legal proceedings; our insurance limits; our ability to meet the solvency requirements necessary to make dividend payments; leverage and financial covenants; our share price; our capital investments; and the issuance of additional common shares, as well as those described in our annual publicly filed documents, including the Annual Information Form for the year ended December 31, 2020 (which are available on SEDAR at www.sedar.com). In addition, in respect of the June 13, 2021 cybersecurity incident, while we have implemented our cybersecurity and business continuity protocols and adopted additional measures to enhance the security of our IT systems to help detect and prevent future attempts or incidents of malicious activity, we are subject to a number of risks and uncertainties in connection with the incident. Such risks and uncertainties include, but are not limited to: the outcome of the ongoing investigation into the incident; costs related to the investigation and any potential liabilities, regulatory investigation or lawsuit resulting from the incident; costs related to and the effectiveness of our mitigation and remediation efforts; our ability to recover proceeds under our insurance policies; and the potential loss of customer and other stakeholder confidence in our ability to protect their information, and the potential adverse financial impact such loss of confidence may have on our business. Given these risks, uncertainties and other factors, investors should not place undue reliance on forward-looking information as a prediction of actual results. The forward-looking information reflects management's current expectations and beliefs regarding future events and operating performance and is based on information currently available to management. Although we have attempted to identify important factors that could cause actual results to differ materially from the forward-looking information contained herein, there are other factors that could cause results not to be as anticipated, estimated or intended. The forward-looking information contained herein is current as of the date of this press release and, except as required under applicable law, we do not undertake to update or revise it to reflect new events or circumstances. Additionally, we undertake no obligation to comment on analyses, expectations or statements made by third parties in respect of Altus Group, our financial or operating results, or our securities. Certain information in this presentation may be considered as "financial outlook" within the meaning of applicable securities legislation including the revenue and Adjusted EBITDA guidance. The purpose of this financial outlook is to provide readers with disclosure regarding Altus Group's reasonable expectations as to the anticipated results of its proposed business activities for the periods indicated. Readers are cautioned that the financial outlook may not be appropriate for other purposes. Altus Group uses certain non-IFRS measures as indicators of financial performance. Readers are cautioned that they are not defined performance measures, and do not have any standardized meaning under IFRS and may differ from similar computations as reported by other similar entities and, accordingly, may not be comparable to financial measures as reported by those entities. Please refer to the disclosure documents filed by the Company with the securities regulatory authorities at sedar.com. All currency throughout this presentation are in Canadian dollars unless otherwise expressly stated. altusgroup.com 2