Accoridng to TC, Boom Supersonic has raised a $33 million Series A round. The investors in the round include 8VC, Caffeinated Capital, Palm Drive Ventures, RRE Ventures and YC's Continuity Fund.

Boom was founded on the philosophy that we need to overcome the challenges of passenger supersonic flight, not surrender to them. Our vision is a world that is more local, enabled by affordable high-speed transportation.
Boom is based in Denver, Colorado, where we are designing, building, and flight testing history's first independently developed supersonic jet. Virgin Group has signed up to be the launch customer, with options on the first 10 aircraft, and Boom has announced partnerships with suppliers including Honeywell and The SpaceShip Company.