Exhibit 99.1 Upwork Reports First Quarter 2024 Financial Results First-quarter GAAP Net Income of $18.4 million First-quarter GAAP Diluted EPS of $0.13 First-quarter Adjusted EBITDA of $33.3 million Raises revenue and Adjusted EBITDA outlook for 2024 Establishes five-year Adjusted EBITDA margin target of 35% SAN FRANCISCO, Calif. – May 1, 2024 – Upwork Inc. (Nasdaq: UPWK), the world’s largest work marketplace that connects businesses with independent talent from across the globe, today announced its financi ...