WASHINGTON, D.C. — Multiple lawsuits among U.S. air taxi manufacturers are intensifying as the industry faces repeated delays in Federal Aviation Administration (FAA) certification and declining stock values in 2026. Joby Aviation sued Archer in 2025, accusing the rival company of corporate espionage and interfering with a real estate developer deal using allegedly stolen information.

Archer responded with a countersuit against Joby, alleging that Joby concealed ties to China and engaged in a “calculated, years-long scheme” to defraud the U.S. government by misclassifying Chinese aircraft parts as consumer goods like “hair clips” and “socks.” Archer also filed a patent infringement lawsuit against British air taxi maker Vertical Aerospace, claiming Vertical copied its Midnight aircraft design. Vertical Aerospace stated the lawsuit is “without merit” and said it “will defend those claims vigorously.” Both legal disputes remain ongoing.

As litigation continues, financial pressures are mounting. Archer’s stock is down 9% year-to-date in 2026 and has lost more than one-third of its value over the past year. Vertical Aerospace’s market value fell roughly 58% in 2025 and remains down about 50% overall as of 2026. Beta Technologies, which went public in November 2025, has seen its stock drop more than 50% from its initial closing price. Joby’s stock declined nearly 7% in 2026 after a 60% gain the prior year. Eve has lost about 13% of its market capitalization in 2026.

No eVTOL manufacturer has flown commercial passengers in the U.S. as of 2026. The FAA requires companies to complete a rigorous, multi-phase aircraft certification process—including type and production certificates—before offering passenger service. Archer reported completing Phase 3 of the FAA Type Certification process and is working on Phase 4, while Joby is mostly through Phase 4 and has begun flight testing its first FAA-conforming aircraft.

Mike Hirschberg, principal at aviation advisory firm H2 Advisors, warned, “If the industry continues to sue each other, then it's going to drag out certification timelines and increase costs.” Beta Technologies CEO Kyle Clark added, “Investors are going to look at things going awry, the resources that are being spent on those lawsuits, and they're going to turn away from the sector. If Joby, Archer, Vertical and Eve go down, we're going to go down with them.”