94 companies

Hoare Lea
69 · GoodLeading independent engineering consultancy specializing in MEP, environmental, and sustainability services.

City of Moreton Bay
69 · GoodDelivering sustainable services to enhance the lifestyle of Moreton Bay residents.

Parsons Corporation
68 · GoodUS 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.

United Launch Alliance
68 · GoodUS 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.

Holmes Miller
68 · GoodScottish architectural practice (Glasgow + London + Leeds + Guangzhou). Permanent 9-day fortnight (72-hour working fortnight) since January 2024, no reduction in pay.

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

Cobham Ultra
67 · GoodUK defense electronics group (formerly Ultra Electronics Holdings plc, acquired by Cobham in 2022). Optional 9-day fortnight is a standard benefit across Ultra Maritime, Ultra I&C and other business units.

Tails.com
67 · GoodUK personalised pet food subscription (B Corp). Permanent 9-day fortnight for all staff with no reduction in pay or leave — verbatim on current JDs.

Ethos Engineering
63 · GoodIrish MEP / sustainability engineering consultancy advertising a 9-day fortnight on their TeamTailor careers benefits page — every other Friday off.

L3Harris Technologies
61 · GoodU.S. defense and aerospace contractor offering a 9/80 work schedule for most employees, with every other Friday off.

Stanley Consultants
61 · Good100% employee-owned engineering and consulting firm delivering infrastructure, energy, and environmental solutions across 120+ countries since 1913.

Oak Ridge National Laboratory
61 · GoodU.S. Department of Energy national lab managed by UT-Battelle, with an established 9/80 work schedule program (every other Friday off).

The Aerospace Corporation
61 · GoodNonprofit 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.

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

Battersea Dogs & Cats Home
61 · GoodIconic UK animal rescue charity since 1860. Rescues, rehabilitates, and rehomes dogs and cats from three centres across London and the South East. Operates a 9-day fortnight.

Clive Owen LLP
61 · GoodAward-winning Chartered Accountants and Business Advisers, one of the largest independent firms in the North East of England. Offices in Darlington, Durham, York, Middlesbrough, and Newcastle. 9-day fortnight with every other Friday off.

General Dynamics UK
58 · GoodOne of the UK's leading defence companies delivering C4I communications, armoured fighting vehicles, and avionic systems for the British Armed Forces and allies worldwide.

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

DOF
58 · GoodDOF is a company committed to innovation and excellence, fostering a workplace culture that values employee well-being and work-life balance.

Phillips 66
58 · GoodDiversified energy manufacturing and logistics company with a formal 9/80 Program — every other Friday off.

Bechtel
58 · GoodGlobal 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.

Giant Peach
75 · GreatDynamic digital agency specializing in Shopify and transformative digital experiences, offering a 9-day fortnight and remote-first culture.

Corvidae
71 · GreatAI technology company transforming data into strategic insights, offering a 9-day fortnight, remote-first flexibility, and comprehensive development programs.

Accept & Proceed
70 · GreatLondon brand & design studio (East London). Clients include NASA, Nike, LEGO. B Corp + 1% for the Planet. Permanent 9-Day Fortnight with every other Friday off.
How a 9 day fortnight works
Every other Friday off
- Work 9 days every 2 weeks instead of 10
- Every other Friday (or Monday) is off
- Same total hours per fortnight — just rearranged
- Popular in engineering, science, and government roles
How we curate this list
We track companies that publicly offer reduced-hours schedules — 4-day weeks, 9-day fortnights, half-day Fridays, and more. This page refreshes daily; companies that drop the policy are removed. Read about our editorial standards →
Last reviewed: May 24, 2026
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