Exhibit 99.1 First Advantage Reports First Quarter 2024 Results Reaffirms Full Year 2024 Guidance First Quarter 2024 Highlights1 • Revenues of $169.4 million • Net Loss of $(2.9) million, after $11.1 million of costs related to the acquisition of Sterling Check Corp. (“Sterling”) • Adjusted Net Income of $24.8 million • Adjusted EBITDA of $46.6 million • GAAP Diluted Net Loss Per Share of $(0.02), after $0.08 per share of costs related to the acquisition of Sterling • Adjusted Diluted Earnings Per Share of ...