EXHIBIT 23

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the registration statements (Nos. 333-136290, 333-202783, 333-204295, 333-204670 and 333-251300) on Form S-8 of our reports dated February 27, 2025, with respect to the consolidated financial statements of Reliance, Inc. and the effectiveness of internal control over financial reporting.

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