Output per person
£56,000
More per person than any region of Britain outside London.1
Berkshire · Oxfordshire · Swindon
The most powerful economy outside London.
One economy, from Swindon to Slough. It deserves one mayor.
Source: ONS, OGL v3.0. Contains OS data © Crown copyright 2025. Routes schematic.
The powerhouse
However you measure it, nowhere outside London comes close.
Six measures. One answer.
Output per hour worked
+21%
Above the UK average. More productive than any region of England outside London.2
Scale
£112bn
Bigger than Wales. Almost Greater Manchester's size, with two-thirds of the people.3
Exports
£32bn
Sold to the world each year. 40% more than Greater Manchester.4
Growth
+24%
Real growth in a decade. Faster than London, and over half as fast again as the UK.5
Science
1 in 5
Of England's scientific research jobs outside London are here.6
£10.7bn
Income tax paid by residents each year, more than all of Wales.7
One economy
From the lab to the world, without leaving the Thames Valley.
1
Discover
Oxford
The world's best university, ten years running.8
2
Prove
Harwell & Culham
National labs, fusion and Britain's first AI Growth Zone.9
3
Scale
Reading & Wokingham
Global HQs and a £9bn digital economy.10
4
Connect
Slough & Heathrow
Britain's most productive city, beside the national airport.11
5
Make
Swindon
More output per job than anywhere in Britain outside London, and room to grow.12
What one mayor unlocks
Imagine what this economy does with one voice.
Swindon to Oxford to Milton Keynes by rail
One transport plan for the whole economy.
Homes where the jobs are
Growth planned across the region, not council by council.
Power for tomorrow's industries
AI, fusion, quantum and space, built here.
Keep the companies we create
Grow world-beating firms here, all the way to scale.
Backers
Support from every side.
Ministers and council leaders from Labour, the Conservatives and Reform UK all see one economy. Every quote links to its original source.
"The economic case is made."
GovernmentSource: Thames Valley councils' letter to ministers, 20 March 2026 ↗
"Game changing for growth."
GovernmentSource: Swindon Borough Council, 19 June 2026 ↗
"Government's recognition that Swindon should be included as part of the Thames Valley."
LabourSource: Oxford City Council, 12 February 2026 ↗
"We already have one of the most productive economies in the country."
LabourSource: Swindon Borough Council, 4 December 2025 ↗
"Devolution has the potential to turbo-charge that."
ConservativeSource: Swindon Borough Council, 19 June 2026 ↗
"One of the strongest regional economies in the country."
Reform UKSource: Swindon Borough Council, 19 June 2026 ↗
Transport
Rail, roads and buses planned as one network.
Homes & planning
Build where the jobs are, with the infrastructure to match.
Skills & investment
Talent and capital for the industries of the future.
One voice
The whole economy, speaking to government and the world.
Get involved
Back one mayor for Berkshire, Oxfordshire and Swindon.
One elected mayor for the most powerful economy outside London, by 2028.
Everyone
Sign the petition
Add your name to the call for one Thames Valley mayor.
Petition launching soon
Business leaders
Add your organisation
Put your company's name behind one economy, one voice.
Get in touch
Councillors & MPs
Request a briefing
The full evidence, region by region, for you and your team.
Request a briefingFor journalists: key facts, maps, logos and press releases, with every figure sourced.
Press kit