Wales · Population 362,756 · GVA £12,400m
Cardiff benefits from a structural advantage unique among UK cities outside London: it's a national capital, and the Welsh Government's presence creates a layer of public-sector employment that's determined by constitutional arrangement rather than market forces. Public administration at 8.4%, health at 12.2%, and education at 10.4% together anchor over 31% of the workforce in sectors with strong natural resilience. The compound semiconductor cluster (IQE, SPTS Technologies) represents genuine deep-tech capability in a field that's critical to AI hardware. The creative sector around BBC Wales and Bad Wolf Studios adds cultural employment. Admin at 9.4% and retail at 9.2% create familiar vulnerability, but at levels below the dataset average. Cardiff's position is genuinely strong — the question is whether the city leverages its advantages into growth or merely coasts on its constitutional status.
Being the capital of Wales means Cardiff's biggest employer is the Welsh Government, and bureaucracies automate at roughly the speed of continental drift, which for once is actually the good news. Public admin at 8.4%, health at 12.2%, education at 10.4% — over 30% of the workforce is in sectors that exist because people need governing, healing, and teaching, none of which AI has cracked at scale. The Senedd employs people to make decisions, the university hospital employs people to treat patients, and BBC Wales employs people to make Doctor Who, and none of these are going away. The compound semiconductor cluster is genuinely impressive — IQE makes the chips that go into everything from 5G phones to defence systems — and it employs about 600 people, which is a lot for a chip fab and not a lot for a national capital. The Bay development turned Cardiff's docklands into a creditable cultural quarter, which is more than Swansea managed and less than Bristol achieved, putting Cardiff in its natural habitat: second to Bristol and ahead of everywhere in Wales. The St David's Centre is a shopping centre that works, mainly because it has no nearby competition. Cardiff's resilience is real but partly constitutional — take away the Senedd and the BBC and you've got a mid-sized city with nice architecture and the same problems as everywhere else.
Cardiff's compound semiconductor cluster is a genuine deep-tech strength that the UK's entire AI hardware strategy depends on — invest aggressively in skills, supply chain, and cleanroom capacity. The creative sector around BBC Wales, Bad Wolf, and S4C should be grown into a serious production hub with studio facilities that compete for international content. Partner with Cardiff University and the University of South Wales on applied AI programmes that serve both the tech cluster and the financial services sector. The public sector's scale should be leveraged for innovation: make Welsh Government services a testbed for responsible AI deployment that creates expertise as well as efficiency. Cardiff Bay has underused capacity for creative and tech workspace that should be developed with affordability protections.
They'll put 'compound semiconductors' in every Welsh Government press release for the next decade, fund another feasibility study for fab expansion, and continue relying on the Senedd and the NHS to employ everyone while Doctor Who keeps the Bay looking busy. IQE will continue doing genuinely important work that has almost no visible connection to the Cardiff economy — the chips ship globally and the employment stays small. BBC Wales will produce content that gets watched nationally and employs locally at a scale that makes for good press and modest employment numbers. Someone will propose a 'Cardiff Creative Quarter' that's indistinguishable from the existing Bay development. The St David's Centre will get a food hall. The Capitol Centre site will be debated for another five years. Cardiff University will produce AI research that's excellent and insufficient to offset the fact that the largest single employer in the city is the Welsh NHS. Cardiff will remain the best city in Wales by a comfortable margin, which is both true and the faintest of praise. The Senedd will keep the lights on. Whether anything else does is the question that gets asked at economic development meetings and answered with a PowerPoint about semiconductors.
Employment share by SIC sector, with automation risk weight and contribution to overall score. Sectors with higher risk weights contribute more to the vulnerability score.
| Sector | Employment % | Risk Weight | Risk Tier | Contribution |
|---|---|---|---|---|
| Human Health & Social Work | 12.2% | 0.18 | low | 2.2 |
| Education | 10.4% | 0.15 | low | 1.56 |
| Administrative & Support Services | 9.4% | 0.85 | high | 7.99 |
| Retail | 9.2% | 0.8 | high | 7.36 |
| Financial & Insurance Services | 8.4% | 0.75 | high | 6.3 |
| Public Administration & Defence | 8.4% | 0.22 | low | 1.85 |
| Accommodation & Food Services | 7.2% | 0.48 | medium | 3.46 |
| Professional, Scientific & Technical | 7.2% | 0.3 | low | 2.16 |
| Information & Communication | 5.4% | 0.5 | medium | 2.7 |
| Manufacturing | 4.8% | 0.82 | high | 3.94 |
| Construction | 4.6% | 0.28 | low | 1.29 |
| Transport & Storage | 4.4% | 0.78 | high | 3.43 |
| Arts, Entertainment & Recreation | 3.6% | 0.2 | low | 0.72 |
| Wholesale | 3.4% | 0.55 | medium | 1.87 |
| Real Estate | 1.2% | 0.4 | medium | 0.48 |
| Agriculture, Forestry & Fishing | 0.2% | 0.25 | low | 0.05 |
The vulnerability score is a weighted average of Cardiff's sector employment shares. Each sector carries an automation risk weight (0.0–1.0) derived from Frey & Osborne's occupational automation probabilities, mapped to SIC sectors via ONS correspondence tables. The weighted average is then normalised to a 0–100 scale. A score of 63.4 means Cardiff's workforce is significantly concentrated in automatable sectors compared to other United Kingdom cities.