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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 30, 2008 (File No. 333-156492) of our report dated June 23, 2022, with respect to the statements of net assets available for benefits of the West Pharmaceutical Services, Inc. 401(k) Plan as of December 31, 2021 and 2020, the related statements of changes in net assets available for benefits for the years ended December 31, 2021 and 2020, and the related supplemental schedule of assets (held at end of year) as of December 31, 2021, which report appears in the December 31, 2021 annual report on Form 11-K of the West Pharmaceutical Services, Inc. 401(k) Plan.