Exponent Investor Presentation

Empowering Our Clients with Solutions for a Safe, Healthy, Sustainable and Technologically Complex World • Overview Multidisciplinary Consulting Capabilities EXPO by the Numbers $ $ $ • Solving High Exposure Challenges Across the Globe. $513M $1.96 30% FY22 Revenue FY22 EPS FY22 EBITDA Margin 1,2 $0.26 Quarterly Dividend • World Class Talent Leveraging Robust Scientific and Engineering Expertise 300 250 200 150 100 50 Cumulative Total Returns: EXPO vs. S&P 500 (%) 192.8 56.9 12/29/2017 12/29/2018 12/29/2019 12/29/2020 12/29/2021 12/29/2022 EXPO S&P 500 1 Refer to non-GAAP reconciliation on slide 22 2EBITDA Margin % = EBITDA/Revenues before Reimbursements Exponent Awards & Recognitions INVESTOR'S BUSINESS DAILY BEST ESG COMPANIES ENVIRONMENTAL, SOCIAL & GOVERNANCE CERTIFIED ISO 9001:2015 COMPANY 4

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