Joby Aviation to build defense business through $500m Resonant Sciences deal

Joby Aviation Inc. (NYSE: JOBY) has signed a definitive agreement to acquire Resonant Sciences, a privately held Dayton, Ohio-based defense technology company, for approximately $500 million, in a deal expected to close during the first half of 2027. The transaction will be funded with roughly $450 million in cash and $50 million in Joby Aviation common stock, giving the electric aircraft developer an immediately adjusted-EBITDA-positive defense business with more than $100 million in trailing-12-month revenue growing at about 40 per cent year on year. The move follows a similarly styled defense pivot at rival Archer Aviation Inc. (NYSE: ACHR), which one trading day earlier announced its own equity-financed absorption of Boeing Company (NYSE: BA) subsidiaries Wisk Aero, Insitu and SkyGrid. The central tension is whether the accelerated defense expansion strengthens the long-run investment case at Joby Aviation quickly enough to justify deploying close to a fifth of the company’s cash and short-term investment base, or whether the transaction adds integration complexity at a moment when the electric vertical takeoff and landing certification programme, the manufacturing ramp and the September 2026 launch of pilot-only flights under the federal eIPP framework still need to land. That question drove Joby Aviation shares down roughly six per cent in Tuesday trading even as the market absorbed a strategically coherent acquisition.

What did Joby Aviation actually agree to acquire in the $500 million Resonant Sciences deal

Resonant Sciences was founded in Beavercreek, Ohio in 2015 and today employs approximately 250 people. It designs, manufactures and delivers advanced radio-frequency, sensing and mission systems for United States national security customers, including direct sales to the U.S. government and to leading prime contractors supporting classified national security programmes and active programmes of record. Publicly visible work spans advanced radomes, antennas, communications electronics, integrated electronics, instrumentation radars, adaptive apertures and aircraft testing infrastructure. Company marketing materials feature the Lockheed Martin F-35 fighter and the Northrop Grumman B-2 bomber, and its Resonant Adaptable Zonal Radar system, which helps United States pilots understand the radar signature that hostile radars can detect from American aircraft, was exhibited at Air Force Life Cycle Industry Days in Dayton earlier this year.

The physical footprint sits at the heart of what Joby Aviation is buying. Resonant Sciences currently operates approximately 105,000 square feet of engineering, integration, testing and manufacturing space across seven buildings in the Dayton area, with an additional 125,000-square-foot facility already under construction that will more than double the site’s capacity for radio-frequency testing, advanced composites and large-scale machining. The company also runs engineering and manufacturing facilities in Virginia, West Virginia, Michigan, Colorado and North Carolina. Cerberus Capital Management L.P. previously invested in the business in 2023. Under the terms of the transaction, co-founder and Chief Executive Officer J. Micah North will continue to lead the business, which will retain the Resonant Sciences name after closing.

Why does the Resonant Sciences acquisition matter for Joby Aviation’s defense ambitions in 2026 and 2027

For a company that has been valued largely on a promise, the immediate arrival of a scaled defense operation is the single largest change in the Joby Aviation narrative in years. Resonant Sciences generated more than $100 million of revenue over the trailing 12 months, a figure that has been growing at roughly 40 per cent year on year. Bookings in the first half of 2026 were more than three times the level recorded in the comparable 2025 period, and backlog has more than doubled year on year, according to the joint announcement. Rodrigo Brumana, Chief Financial Officer of Joby Aviation, described Resonant Sciences as a fast-growing business with strong visibility into future revenue supported by a growing backlog and healthy adjusted EBITDA margins in the high teens.

The strategic case reaches beyond immediate revenue. Joby Aviation intends to consolidate its existing dual-use defense initiatives, including its turbine-electric and hydrogen-electric aircraft programmes and its autonomy technology stack, inside the Resonant Sciences unit. That structure preserves the commercial aviation organisation’s focus on certifying, manufacturing and commercialising its electric air taxi, while giving the defense stream a purpose-built operating platform with classified programme experience and a customer set that already includes the U.S. government. Joby Aviation and Resonant Sciences have collaborated for roughly three years on the design and development of next-generation aircraft, a working history that reduces some, though not all, of the cultural integration risk that typically accompanies acquisitions of this scale.

How does Resonant Sciences change Joby Aviation’s revenue base ahead of eVTOL commercial launch

Joby Aviation reported Q2 2026 revenue of $38.6 million, ahead of analyst estimates in the low $30 million range, and raised its full-year 2026 revenue guidance to $115 million to $125 million from a prior $105 million to $115 million range. Most of that revenue currently comes from the Blade air-mobility business acquired last year, where seat sales grew more than 50 per cent year on year in the quarter, first-half revenue rose 32 per cent, and aircraft availability rather than passenger demand has become the operating constraint on certain routes. Layered on top of that base, a Resonant Sciences business generating more than $100 million of annual revenue at high-teens adjusted EBITDA margins would represent a step-change in both the scale and the quality of the reported top line.

The critical qualifier is timing. The transaction is expected to close during the first half of 2027, and Resonant Sciences revenue will only consolidate from that point. In the interim, Joby Aviation continues to progress the fifth and final stage of Federal Aviation Administration type certification for its Midnight air taxi, plans to begin pilot-only flights under the electric vertical takeoff and landing integration pilot programme in the Dallas-Fort Worth area in September 2026, and targets at least two additional aircraft deliveries in the second half of the year. The Resonant Sciences contribution is therefore a 2027 story overlaid on a 2026 certification and commercialisation story, rather than a replacement for it.

What role will J. Micah North and the Dayton Ohio manufacturing footprint play inside Joby Aviation

The geography of the deal is not incidental. Joby Aviation already operates approximately 768,000 square feet of facilities in Ohio, including a propeller blade production site in a former United States Postal Service sorting facility at Dayton International Airport and a Vandalia industrial property that the company acquired earlier in 2026 for approximately $62 million to support long-term aircraft assembly work. Combined with Resonant Sciences’ current and under-construction footprint in Beavercreek, the merged organisation will command roughly 1 million square feet of manufacturing, integration and testing space across the Dayton region, positioning the combined business as one of the region’s largest advanced aviation and defense employers.

That location also carries programmatic weight. Wright-Patterson Air Force Base, the Air Force Research Laboratory and the National Air and Space Intelligence Center all sit within reach, giving Resonant Sciences the customer proximity that co-founder Micah North has cited as one reason Dayton is uniquely suited to defense aerospace work. Retaining North at the head of the defense unit preserves the customer relationships and classified programme access that make the business valuable in the first place. It also transfers to Joby Aviation the leadership of a company that has been growing headcount aggressively, including 101 additional jobs announced at a new radome production facility earlier in 2026 with support from JobsOhio.

How does the $450 million cash outlay reshape Joby Aviation’s $2.3 billion balance sheet

Joby Aviation ended Q2 2026 with approximately $2.3 billion in cash, cash equivalents and short-term investments after using $202 million of cash during the quarter. Management has guided second-half 2026 cash use to a range of $385 million to $415 million, primarily to support certification, manufacturing, the eIPP programme and commercialisation readiness. A separate agreement with Toyota Motor Corporation is expected to bring a $250 million direct investment into the balance sheet, and the recent partnership with Atoms, the industrial artificial-intelligence infrastructure company founded by Travis Kalanick, involves co-investment in vertiport sites rather than an outflow from Joby Aviation alone.

Against that starting point, the $450 million cash portion of the Resonant Sciences purchase price is material. If closing occurs early in the first half of 2027 as expected and if second-half 2026 cash use lands within guidance, the transaction would leave Joby Aviation with a still-substantial but visibly reduced net liquidity buffer heading into the critical certification and commercial ramp phase. The $50 million equity component, on a share base of roughly 989 million shares, is small enough that dilution is not the primary balance-sheet concern. What matters more for the investment case is whether the incremental adjusted EBITDA delivered by Resonant Sciences after closing narrows the pace of consolidated cash burn faster than the amortisation of acquired intangibles and integration spend widens it. That arithmetic will only become visible in the first full quarter of consolidated reporting after the deal closes.

Where does the Resonant Sciences deal fit alongside Archer Aviation’s Wisk Insitu and SkyGrid acquisition

The Joby Aviation announcement lands one trading day after Archer Aviation confirmed its agreement to acquire three Boeing subsidiaries, Wisk Aero, Insitu and SkyGrid, in an equity-financed transaction that gives Boeing a stake of just under 20 per cent in Archer Aviation. That deal added a defense operation of comparable strategic weight to Archer Aviation, with Insitu alone generating in excess of $200 million of annual revenue from unmanned intelligence, surveillance and reconnaissance platforms. Read together, the two announcements mark the effective end of the pure-play eVTOL narrative for the two largest listed United States electric aircraft developers, both of which now sit closer to hybrid defense-plus-eVTOL-plus-autonomy platforms than to the passenger-only air taxi thesis that defined their earlier equity stories.

The structural contrast between the two transactions is instructive. Archer Aviation preserved cash but issued significant equity, converting a former adversary in Boeing into its largest strategic shareholder. Joby Aviation is deploying almost all of its purchase consideration in cash, preserving a clean control structure and avoiding a large single institutional shareholder, at the cost of a materially thinner liquidity buffer. Which structure ages better will depend less on the relative merits of Resonant Sciences and Insitu than on whether both companies can deliver their eVTOL certifications and commercial launches on the schedules already communicated to shareholders. EHang Holdings Limited (NASDAQ: EH), which remains focused on the Chinese commercial market and has not signalled a Western defense pivot, offers a useful benchmark for what the pure-play thesis looks like without the defense overlay.

What integration regulatory and execution risks now sit alongside the Joby Aviation Resonant Sciences deal

The transaction remains subject to regulatory reviews and customary closing conditions before it can complete during the first half of 2027. Because Resonant Sciences performs work on classified national security programmes, that review process will include national security and defense contracting elements alongside standard antitrust clearance, and any change-of-control clearances required by individual programme offices could influence timing. The three-year prior working relationship between the two companies mitigates some of the risk that classified programme customers will interpret the change of ownership adversely, but does not eliminate it.

Integration risk is meaningful even without the classified layer. Joby Aviation is a Californian aerospace start-up whose organisational culture has been shaped by an eVTOL certification programme; Resonant Sciences is a mid-scale Dayton defense contractor whose culture has been shaped by classified customer relationships and radio-frequency engineering. Housing the combined defense work under the Resonant Sciences brand and leadership, rather than dissolving it into the parent, is a design choice intended to preserve the acquired culture, but the record on such structures in aerospace mergers is mixed. Parallel execution risk on the core Midnight eVTOL programme, on the Toyota manufacturing joint venture, and on the Blade seasonal ramp remains unchanged. None of these programmes can be paused to accommodate the integration workload.

Why did Joby Aviation shares fall 6% despite the immediate revenue and margin lift from Resonant Sciences

Joby Aviation shares fell approximately six per cent in premarket and early Tuesday trading following the announcement, against a closing reference price of $8.81 the previous session and a market capitalisation in the region of $8.7 billion. The reaction is worth reading against the specific mix of the transaction. The cash-heavy structure removes close to $450 million of financial flexibility from the balance sheet at a moment when the certification and commercialisation programmes still consume cash. The revenue and adjusted EBITDA contribution from Resonant Sciences does not begin to consolidate until the deal closes. The strategic reframing of Joby Aviation from a focused eVTOL pure-play to a defense-plus-eVTOL-plus-autonomy platform may not align with the base case for every institutional holder that owns the stock today.

Analyst 12-month price targets on Joby Aviation averaged approximately $12.10 across five analysts before the announcement, with a range from $8.00 to $18.00, according to publicly available consensus data. Retail sentiment on Stocktwits was reported in the extremely bullish range at high message volume immediately following the disclosure, indicating that any share-price weakness has not been driven by retail selling pressure. The gap between retail enthusiasm and share-price weakness suggests that repositioning by institutional holders on the revised investment thesis, rather than a rejection of Resonant Sciences on its own terms, explains the immediate market reaction. Whether that repositioning proves durable will depend on how quickly Joby Aviation can convert the acquired defense platform into visible consolidated financial contribution once the transaction closes.

What should investors track as Joby Aviation moves the Resonant Sciences deal toward first-half 2027 close

• Joby Aviation has signed a definitive agreement to acquire Resonant Sciences, a Dayton, Ohio-based defense technology company, for approximately $500 million funded through roughly $450 million in cash and $50 million in Joby Aviation common stock, with expected closing in the first half of 2027.
• Resonant Sciences generated more than $100 million of revenue over the trailing 12 months at high-teens adjusted EBITDA margins, with year-on-year revenue growth of about 40 per cent, first-half 2026 bookings more than three times the year-earlier level and backlog more than doubled year on year.
• Co-founder and Chief Executive Officer J. Micah North will continue to lead the business, which will retain the Resonant Sciences name and become the dedicated defense unit inside Joby Aviation, absorbing the existing turbine-electric and hydrogen-electric aircraft programmes and the autonomy technology stack.
• The combined Dayton-region manufacturing, integration and testing footprint will reach approximately 1 million square feet across Joby Aviation’s existing 768,000 square feet in Ohio and Resonant Sciences’ current and under-construction facilities in Beavercreek.
• The most significant near-term financial reset is the $450 million cash outlay against a Q2 2026 closing balance of $2.3 billion in cash and short-term investments, followed by second-half 2026 cash use guided to $385 million to $415 million and a separate Toyota Motor Corporation $250 million direct investment expected to strengthen liquidity.
• Immediate revenue contribution from Resonant Sciences arrives only after closing during the first half of 2027; Joby Aviation’s own full-year 2026 revenue guidance of $115 million to $125 million remains driven largely by the Blade air-mobility business acquired in 2025.
• The transaction lands one trading day after Archer Aviation’s equity-financed absorption of Boeing’s Wisk Aero, Insitu and SkyGrid units, marking the effective end of the pure-play eVTOL positioning for both listed United States electric aircraft developers and reframing the sector as a hybrid defense, autonomy and passenger platform race.
• Regulatory clearance requires national security and defense contracting reviews in addition to standard antitrust review, and the three-year prior working relationship between Joby Aviation and Resonant Sciences reduces but does not remove the risk that classified programme change-of-control clearances influence closing timing.
• What remains unresolved is whether incremental Resonant Sciences adjusted EBITDA after closing narrows the pace of consolidated cash burn faster than acquired intangible amortisation, integration spend and continued eVTOL certification investment widen it, and whether institutional shareholders adopt the revised hybrid investment thesis over the coming quarters.
• The next measurable proof points are the September 2026 start of eIPP flights in the Dallas-Fort Worth area, the delivery of at least two additional aircraft in the second half of 2026, further progress on the fifth and final stage of Federal Aviation Administration type certification for the Midnight air taxi, and closing of the Resonant Sciences transaction on the guided first-half 2027 timeline.