Nov 5, 2024 · Eve, OHI and Revo Collaborate to Develop AAM Ecosystem in Brazil. Eve Air Mobility ("Eve") (NYSE: EVEX; EVEXW), Revo, an Advanced Air Mobility (AAM) platform in Brazil, and its parent company, Omni Helicopters International Group (OHI), announced the conclusion of an urban air traffic simulation in S&atil..