Companies Offering 9 Day Fortnights in the United Kingdom

Leading independent engineering consultancy specializing in MEP, environmental, and sustainability services.

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

UK 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.

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

Iconic 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.

Award-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.

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

Dynamic digital agency specializing in Shopify and transformative digital experiences, offering a 9-day fortnight and remote-first culture.

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

London 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.

UK anti-fascist charity and campaigning research organisation. Staff work a 9-day fortnight on full pay — every alternate Friday off.

UK social enterprise (London) placing built-environment specialists into local authorities, with a 9-day fortnight written into contracts.

Leading fintech company transforming debt capital markets with AI-powered insights, trusted by top investment banks and asset managers worldwide.

AWE is the UK's nuclear warhead research and development organization, providing critical national security capabilities with a 9-day fortnight work pattern.

Digital mental health platform combining smart technology with human coaching to support autistic and ADHD people, offering a 9-day fortnight and 36-hour full-time week.

Edinburgh-based AI seismic interpretation software company revolutionizing subsurface visualization for the energy industry's journey to Net Zero.

Developing tools to support the transformation of education, health, and social care.

Transforming rail maintenance with advanced mapping and positioning solutions.

Music Vine is a leading music licensing platform empowering content creators with high-quality, fairly-priced tracks while supporting independent artists.

Independent digital marketing agency and SaaS provider offering 9-day fortnights, remote-first flexibility, and exceptional work-life balance since 2008.

UK + Ireland fire safety engineering consultancy with 9-day fortnight, hybrid/remote working, and offices in 5 UK/Ireland cities.

UK sustainability consultancy (founded 1994). Permanent 9-day fortnight with no loss of pay, after participating in the 2024 4-Day Week Foundation pilot.

Cornwall's unitary local authority. Staff can request compressed hours including a 9-day fortnight on full pay.

UK Microsoft consultancy (Reading) where full-time colleagues can opt in to a 9-day fortnight on full pay.