Electric aircraft maker BETA TECHNOLOGIES has filed to go public under the ticker BETA, joining a wave of aerospace and clean-tech companies heading to the markets. Founded in 2017, Beta has raised over $1.5B in private capital, opened a 188,500 sq. ft. production facility in Vermont, and completed thousands of flights with its ALIA electric aircraft across North America and Europe, including operations with the U.S. military and FAA. The company says its simplified design
