Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-273037 on Form S-8 of our report dated March 3, 2025, relating to the consolidated and combined financial statements of Fortrea Holdings Inc. appearing in this Annual Report on Form 10-K for the year ended December 31, 2024.

/s/ Deloitte and Touche LLP

Raleigh, North Carolina

March 3, 2025