Joby's real defense play: no $500M acquisition, but a growing Pentagon footprint
The eVTOL maker isn't buying a Dayton defense firm — but Toyota just handed it half a billion dollars, and the military ambitions are very real.
Written by OutOfToken AI
August 11, 2026 · 4 min read · Synthesized from reporting by The Verge · How this works
A circulating report claims Joby Aviation is acquiring Dayton, Ohio-based defense firm Resonant Sciences in a $500 million deal to bulk up its military business. That specific claim doesn't hold up. The $500 million figure traces back to something else entirely: a Toyota investment in Joby, not an acquisition of a defense contractor.
Where the $500 million actually came from
Toyota Motor Corporation announced a $500 million investment in Joby Aviation, formalized at a signing ceremony at Toyota's North American headquarters in Plano, Texas. That commitment builds on prior Toyota investments totaling $394 million, pushing the automaker's total stake in Joby toward the $900 million range. There's no indication in available records that Resonant Sciences exists as a Joby acquisition target, or that Joby has announced any $500 million purchase of a defense company.
The defense angle is real — just not this deal
Joby's military ambitions aren't fabricated, even if this particular acquisition is. The company is working with L3Harris to develop hybrid VTOL aircraft for the Department of Defense, part of an Air Force-linked effort often associated with the AFWERX program. Joby has also been demonstrating autonomous flight capabilities to the military directly.
"Joby's autonomous cargo aircraft flew more than 3,900 miles between military bases and airports across California and Nevada, delivering aircraft parts and supplies without a pilot."
Autonomy as the entry point
Joby's clearest defense credential so far is its 2024 acquisition of Xwing, an autonomous aviation software developer. That deal gave Joby the tools to demonstrate what it calls 'aircraft-level' autonomy to the U.S. military. In one exercise, an autonomous system flew thousands of miles across multiple sorties, including a long-range ferry flight that crossed the Pacific, landing and taxiing without direct human piloting.
Commercial ambitions haven't slowed down
None of this changes Joby's core business plan: getting air taxis into commercial service. Backed by partnerships with Uber and Delta, and now flush with fresh Toyota capital, Joby is expanding manufacturing capacity at its Marina, California site and standing up new production capability in Ohio to build certified aircraft parts domestically.
The Resonant Sciences acquisition, as described, appears to be a conflation rather than a confirmed event — there's no verified deal, no verified target company acquisition, and no verified timeline. What's real is a company juggling two identities at once: an air-taxi startup racing toward commercial launch, and a Pentagon-adjacent contractor building autonomous flight credibility one demonstration at a time. Whether those two tracks eventually merge into a Resonant-style defense division remains, for now, unconfirmed.
Editorial Note
The research strongly corroborates the article's core debunking: the $500 million figure refers to Toyota's investment, not a defense acquisition, and sources confirm Joby's actual military partnerships with L3Harris and demonstrated autonomous capabilities. The article accurately distinguishes between fabricated acquisition claims and Joby's genuine Pentagon footprint through verified partnerships and technology acquisitions like Xwing.
Claim Tracker
AI-assessed
The article itself refutes this claim in the body text, and research sources confirm the $500 million figure refers to Toyota's investment in Joby (Sources 2, 3, 4), not an acquisition of Resonant Sciences. No sources mention Resonant Sciences as a Joby acquisition target.
Confirmed by Sources 2, 3, and 4 (Toyota USA Newsroom, PR Newswire, and Joby Aviation official announcements), with a signing ceremony at Toyota's North American headquarters in Plano, Texas.
Source 4 confirms Toyota's prior investments totaled $394 million, and the new $500 million investment would bring the total to approximately $894 million, supporting the 'toward $900 million' characterization.
Source 5 (Manufacturing Dive) confirms Joby acquired autonomous aviation software developer Xwing in June 2024.
Source 5 confirms the Cessna 208B Grand Caravan flew more than 3,900 miles between military bases and airports in California and Nevada to deliver cargo including aircraft parts and supplies.
Source 5 (Manufacturing Dive) confirms 'Joby displayed the 'aircraft-level' autonomy to the U.S. military' in partnership with L3Harris on hybrid VTOL military aircraft development for DOD.
Ask AI about this story
// discussion
sign in to join the discussion