Companies Offering 9 Day Fortnights in the United States

US engineering and technology firm building defense, intelligence, and critical-infrastructure solutions — ~18,000 employees with a 9/80 every-other-Friday-off work schedule for eligible US employees.

US space-launch services joint venture (Boeing + Lockheed Martin) — Atlas, Delta, and Vulcan rocket families with a 9/80 workweek (every other Friday off) for most employees.

Dolby transforms sight and sound into spectacular experiences through innovative audio and visual technologies like Dolby Atmos and Dolby Vision, serving entertainment and beyond.

U.S. defense and aerospace contractor offering a 9/80 work schedule for most employees, with every other Friday off.

100% employee-owned engineering and consulting firm delivering infrastructure, energy, and environmental solutions across 120+ countries since 1913.

U.S. Department of Energy national lab managed by UT-Battelle, with an established 9/80 work schedule program (every other Friday off).

Nonprofit federally funded research and development center for the U.S. space enterprise — full-timers can opt into a 9/80 schedule with alternate Fridays off.

U.S. independent E&P energy company with formal 9/80 and 19/30 flexible work schedules, plus a Hybrid Office Work program.

America's largest petroleum refiner (NYSE: MPC), offering a 9/80 schedule at refineries and technical sites — every other Friday off.

Diversified energy manufacturing and logistics company with a formal 9/80 Program — every other Friday off.

Global engineering, procurement, construction (EPC) and project management firm — many large projects (e.g. Hanford WTP, Oak Ridge UPF) run on a 9/80 schedule with every other Friday off.

US Fortune 500 defense, intelligence, civil, and health technology firm — 9/80 schedule offered on specific National Security Sector programs (filter restricts ingestion to roles where this is documented).

Global aerospace and defense company focused on innovation and security.

Global aerospace and defense leader pioneering advanced security solutions with 90,000+ employees driving innovation in space systems, defense electronics, and cybersecurity.

Los Angeles-based design and technology agency working with clients including Google, Spotify and the New York Historical Society. Every other Friday off, year-round.

Leading aerospace company specializing in innovative and secure solutions.

Global energy leader pioneering sustainable solutions with 145+ years of innovation, offering flexible 9/80 schedules and comprehensive benefits.

NASA's premier robotics and space exploration center, home to Mars rovers, Voyager missions, and groundbreaking discoveries about our universe.

World's largest non-profit applied science and R&D organization — many employees work a 9/80 schedule with every other Friday off.

Independent oil and gas producer operating in the Bakken and Three Forks formations, offering 9/80 schedules and hybrid work flexibility.

Voice analytics AI detecting fraud and risk in 37 countries. Remote-friendly with 9-day fortnights—every second Friday off.

U.S. aerospace and defense edge processing company explicitly advertising a 9/80 work schedule with every other Friday off.

Global energy and chemical company pioneering carbon-management technologies with 17,000 employees committed to a lower-carbon future.

U.S. technology and engineering contractor for federal defense and intelligence — offers a 9/80 work schedule with every other Friday off.