Boom Supersonic Raises Nearly $1 Billion to Accelerate Supersonic Airliner and Energy Technology Expansion
Boom Supersonic, the Denver-based aerospace company seeking to reinvent high-speed commercial flight, has significantly expanded its funding base over the years, attracting major venture capital investors and strategic backers to fuel both its supersonic passenger jet project and newer energy-technology initiatives. Since its founding in 2014 by CEO Blake Scholl, Boom has raised hundreds of millions of dollars in funding from a diverse group of investors, reflecting broad interest in both its Overture supersonic airliner and adjacent technology businesses.
The company’s earliest major infusion came in March 2017, when Boom closed a $33 million Series A round to accelerate development of its XB‑1 supersonic demonstrator aircraft. That funding included contributions from 8VC, Caffeinated Capital, Palm Drive Ventures, RRE Ventures, and Y Combinator’s Continuity Fund. That round laid the financial groundwork for Boom’s initial prototype effort and helped bring supersonic flight research back into commercial focus after a decades-long hiatus since the Concorde era.
Boom’s profile and investor roster were further elevated in January 2019, when it closed a $100 million Series B funding round aimed at advancing Overture, its planned Mach 2.2 passenger airliner designed to fly faster than the speed of sound with the efficiency and economics required for commercial service. This round was led by Emerson Collective, a prominent impact investment group founded by Laurene Powell Jobs, and included participation from Y Combinator Continuity, Caffeinated Capital, and SV Angel, alongside angel investors tied to major technology companies. This infusion brought the company’s known funding at that time to more than $140 million, reinforcing investor confidence in Boom’s ability to advance supersonic travel.
In more recent developments, Boom significantly expanded its capital base with a $300 million funding round announced in late 2025. This strategic funding was led by Darsana Capital Partners, a private investment firm with an appetite for transformative technology projects, and saw participation from Altimeter Capital, ARK Invest, Bessemer Venture Partners, Robinhood Ventures, and Y Combinator. Rather than strictly fund aircraft development, this round is tied to Boom’s expansion into energy applications—most notably the Superpower natural gas turbine business designed to meet demand from AI data centers—while also supporting core aerospace efforts.
Taken together, these funding efforts have helped Boom Supersonic accumulate nearly $1 billion in total investment capital and attract an array of prominent backers across venture capital, growth equity, and innovation-oriented investment funds. Key investors now associated with the company include Darsana Capital Partners, Altimeter Capital, ARK Invest, Bessemer Venture Partners, and Y Combinator, among others that supported earlier rounds.
Investors have generally cited Boom’s ambitious mission to reintroduce supersonic travel at lower operating costs and with broader market accessibility, as well as its pivot into adjacent technologies, as compelling reasons for continued backing. These financial commitments have allowed the company to advance prototype construction, expand its manufacturing footprint, explore commercial engine development, and build partnerships with airlines that have placed orders or deposits for the upcoming Overture airliner. As Boom continues to navigate technological and regulatory hurdles inherent in supersonic flight, its diversified funding base positions the startup to pursue both its aerospace and energy technology goals well into the next decade.
