Exhibit 99.1 UL Solutions Inc. Reports Strong First Quarter 2024 Results 1 First Quarter 2024 (Comparisons to First Quarter 2023 ) • Strong revenue growth of 6.5% to 670million,including7.560 million or, 0.28perdilutedshare•AdjustedNetIncomeof61 million increased 13.0% • Adjusted EBITDA of 131millionincreased18.0141 million and Free Cash Flow of $8 ...