CRA International shareholders approve equity plan increase of 500,000 shares and elect directors

Proposal Four: Approval of Amendments to our Amended and Restated 2006 Equity Incentive Plan, and to approve the entire Plan, as so amended, for purposes of French law. Our shareholders voted to approve amendments to the Plan, including increasing the maximum number of shares issuable under the Plan by 500,000, as well as approving the entire Plan, as amended, for purposes of French law. The results of the vote were as follows: For Against Abstain Broker Non-Votes 5,376,211 268,628 4,313 547,446

Our shareholders elected Richard Booth, William Concannon and Christine Detrick as our Class I directors for a three-year term. The results of the vote were as follows: Nominee For Withheld Broker Non-Votes Richard D. Booth 5,584,476 64,676 547,446 William F. Concannon 4,941,710 707,442 547,446 Christine R. Detrick 5,434,465 214,687 547,446

Proposal Five: Ratification of Grant Thornton LLP as our Independent Registered Public Accountants for Fiscal 2023 Our shareholders ratified the appointment by our audit committee of Grant Thornton LLP as our independent registered public accountants for our fiscal year ending December 30, 2023. The results of the vote were as follows: For Against Abstain Broker Non-Votes 6,194,712 996 890 0

Our shareholders voted to approve, on an advisory basis, the compensation paid to our named executive officers as disclosed in the proxy statement filed in connection with the annual meeting pursuant to Item 402 of Regulation S-K. The results of the vote were as follows: For Against Abstain Broker Non-Votes 5,361,472 246,714 40,966 547,446

Proposal Three: Frequency of Advisory Shareholder Votes on Executive Compensation Our shareholders voted to approve, on an advisory basis, every year as the preferred frequency of our holding advisory shareholder votes to approve the compensation paid to our named executive officers as disclosed pursuant to Item 402 of Regulation S-K. The results of the vote were as follows: 1 Year 2 Years 3 Years Abstain Broker Non-Votes 4,978,128 179,358 450,228 41,438 547,446