Exhibit 99.1 SIDUS SPACE REPORTS FIRST QUARTER 2024 FINANCIAL RESULTS AND PROVIDES BUSINESS UPDATE CAPE CANAVERAL, Fla – May 20, 2024 —Sidus Space, Inc. (NASDAQ:SIDU) (the “Company” or “Sidus”), a Space and Data- as-a-Service satellite company, announced its financial results for the first quarter ended March 31, 2024 and provided a business update. The Company is scheduled to host a conference call and webcast today, Monday, May 20, at 5:00 p.m. ET. “During the first quarter of 2024, we successfully launch ...