Sterling Results Presentation Deck

Full year 2021 Financial Highlights Revenue Chart in $ millions 17 $454.1 2020 +41.4%1 $641.9 2021 +39.0% organic constant currency revenue growth² driven by robust base growth, up-sell/cross-sell, new client wins, and client retention Adjusted EBITDA and Margin² Chart in $ millions Adj. EBITDA Margin $99.8 22.0% 2020 +79.5% +590 bps $179.2 27.9% 2021 590 bps of margin expansion driven by strong revenue growth, operating leverage, and cost controls 1. Includes +39.0% organic constant currency revenue growth, +1.7% due to the impact of fluctuations in foreign exchange currency rates, and +0.7% due to inorganic revenue growth. 2. See appendix for a reconciliation GAAP to Non-GAAP measures Adjusted Earnings Per Share² $0.30 2020 +223.3% $0.97 2021 +223.3% EPS growth driven by strong revenue growth, improved operating leverage, and improvements in D&A and interest expense Sterling

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