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We consent to the incorporation by reference in the registration statement on Form S-8 filed by West Pharmaceutical Services, Inc. on December 29, 2010 (File No. 333-171453) of our report dated June 28, 2023, with respect to the statements of net assets available for benefits of the West Contract Manufacturing Savings and Retirement Plan as of December 31, 2022 and 2021, the related statements of changes in net assets available for benefits for the years ended December 31, 2022 and 2021, and the related supplemental schedule of assets (held at end of year) as of December 31, 2022, which report appears in the December 31, 2022 annual report on Form 11-K of the West Contract Manufacturing Savings and Retirement Plan.