TL;DR: Across 234 UK industries we track, the spread between this year's fastest-growing sector (Green Deal Installers, +14.3%) and the worst-performing one (Steel Stockholders, -8.4%) is nearly 23 percentage points. This blog pulls out the ten industries whose four-year growth trajectories tell the most newsworthy story of the British economy right now, five booming, five in trouble, all backed by hard sales data.
The British economy is rarely a single story. In any given quarter, one industry is celebrating a record order book while another is announcing redundancies. The trick, if you want to spot where money is genuinely moving, is to ignore the noise of monthly GDP prints and look at four-year sales-growth trends across thousands of real companies.
That's what we've done here. Below are ten UK industries hitting the headlines in 2026, for very different reasons.
How we picked the ten
We screened 1600 UK industries by year-on-year sales growth across the last four reporting years. We then selected ten that meet two tests:
- The latest growth figure is genuinely newsworthy, either at the top or bottom of the league.
- The four-year trajectory tells a coherent story about where the UK economy is heading.
Five are roaring. Five are struggling. The contrast is the point.
Part one: the five industries booming in 2026
1. Green Deal Installers, the quiet retrofit revolution
Four-year sales growth: +22.1% → +17.8% → +17.1% → +14.3%
The companies installing heat pumps, solid-wall insulation and solar PV into British homes are running the most consistent growth story in the entire UK economy. Four straight years of double-digit growth. No other industry on our list comes close on consistency.
Why it's working: the Boiler Upgrade Scheme, mandatory EPC ratings on rental property, and a customer base that has finally accepted that gas boilers are a depreciating asset. Installers who got their MCS accreditation in 2022 are now operating with order books stretching into 2027.
Headline angle: Britain's net-zero pivot is no longer a policy paper, it's a £-growing supply chain.
2. Aerospace, the phoenix industry
Four-year sales growth: -2.7% → +17.6% → +15.1% → +10.5%
Few industries have staged a more dramatic recovery. Four years ago, UK aerospace was still bleeding from the pandemic groundings. Today, Airbus and Boeing order backlogs sit at record highs, defence spending is rising across NATO, and Tier 2 suppliers, the precision machinists, composite specialists, avionics houses, are quoting customers 12-month lead times.
The risk: it's a capacity story, not a demand story. The companies that can hire and tool up fastest will capture the windfall. Those that can't will watch competitors take their share of a finite order book.
Headline angle: From layoffs to lead times, UK aerospace is rebuilding faster than anyone forecast.
3. Physiotherapy, the wellness wave meets the NHS backlog
Four-year sales growth: +9.1% → +8.4% → +13.5% → +13.6%
Physiotherapy is accelerating, not slowing. The latest year is the strongest in the four-year run. Three forces are converging: the NHS musculoskeletal waiting list (which keeps pushing patients into private clinics), an ageing population that wants to keep moving, and a corporate-wellness market where employers now treat physio as a benefit rather than a perk.
Independent clinics are consolidating. Private equity has noticed. Expect a wave of roll-ups over the next 18 months.
Headline angle: Britain's bad backs are funding one of the country's most consistent growth industries.
4. Fintech, still growing, still misunderstood
Four-year sales growth: +9.1% → +12.9% → +9.5% → +9.8%
Despite the obituary headlines after the 2023-24 funding winter, UK fintech sales growth has barely flinched. The neobanks, payments processors, and embedded-finance specialists kept compounding while journalists wrote them off. Profitability, not valuation, is now the league table that matters, and the firms that survived the funding crunch are now winning on unit economics.
The story has changed: from "blitzscale and burn" to "boring, profitable, sticky." That's a better business, even if it's a worse headline.
Headline angle: Fintech 2.0, the survivors are quietly winning.
5. Wealth Management, the great wealth transfer arrives
Four-year sales growth: +11.9% → +4.7% → +3.2% → +9.9%
Wealth management has snapped back. After two flat years driven by market volatility, the latest year shows a near-10% jump in sales as the largest intergenerational wealth transfer in British history begins in earnest. Boomers are gifting, dying, or de-risking, and their advisers are billing.
Add rate-driven income on cash and bond portfolios, and 2026 is shaping up to be the year wealth managers stop apologising for their pricing.
Headline angle: The great wealth transfer is no longer theoretical, it's showing up in fee income.
Part two: the five industries hitting the wrong kind of headlines
6. Steel Stockholders, the deepest decline in the UK economy
Four-year sales growth: +26.8% → +17.9% → -8.7% → -8.4%
No UK industry has fallen further or faster. Two consecutive years of near-double-digit sales declines, after a post-pandemic boom that now looks like a bubble. The cause is well-rehearsed: weak construction demand, Chinese export pressure, decarbonisation costs on UK producers, and customers who simply destocked aggressively when interest rates rose.
Margins have gone with volumes. The next 12 months will sort the stockholders with diversified end-markets from those over-indexed to UK construction.
Headline angle: The metal in Britain's supply chain is rusting, and the league table proves it.
7. Recruitment Agencies (London), the white-collar freeze
Four-year sales growth: +20.8% → +17.6% → -2.3% → -3.6%
London's recruitment agencies are in their second straight year of decline. The post-pandemic hiring spree is long gone, replaced by a deeply cautious corporate market. Banks, law firms, professional services and tech employers are all running leaner headcounts, and increasingly piloting AI tools that replace the very white-collar work London agencies have built their margins around.
This is not a cyclical dip. It is the first visible evidence that AI is reshaping demand at the top of the salary curve.
Headline angle: AI's first big economic footprint isn't in factories, it's in the City's recruitment desks.
8. Chemical Manufacturing, the price of British energy
Four-year sales growth: +11.2% → +11.7% → -3.1% → -2.3%
Two consecutive years of contraction. UK chemical producers are caught between high industrial energy prices, EU carbon-border costs, and customers who increasingly source from the Gulf or the US. Several large plants have already announced closures or "indefinite" mothballing.
This is the industry that turns "deindustrialisation" from a buzzword into a P&L line.
Headline angle: Britain's chemicals industry is showing what energy costs look like when they reach the factory gate.
9. Healthcare Recruitment, the NHS funding squeeze
Four-year sales growth: +16.5% → +17.9% → +5.0% → -3.1%
After two boom years built on NHS agency spending, the regulator has clamped down hard on framework rates and off-framework usage. The result: a 20-percentage-point swing from +16.5% growth to -3.1% decline in just four years. Agencies that built their model on premium-rate locum doctors and nursing shifts are now restructuring.
Headline angle: The NHS finally said no to agency rates, and you can see it in the supplier league table.
10. Independent Television Production, the streaming pullback bites
Four-year sales growth: +16.4% → +15.4% → +2.2% → -1.4%
The UK indie production sector has gone from boom to contraction in 36 months. The cause: a brutal commissioning slowdown from streamers tightening budgets, BBC and Channel 4 cuts, and the lingering effects of the 2023 US writers' strike on co-production pipelines. Shoot days are down. So are the freelancers depending on them.
Headline angle: The streaming gold rush is over, and British indie producers are paying the bill.
What this tells us about the UK economy in 2026
Three patterns jump out of the data.
First, the green transition is no longer just policy, it's a P&L. Green Deal Installers are the most consistently growing industry in the country. The investment is now flowing through real installer order books, not just speeches.
Second, AI's first economic footprint is white-collar, not blue-collar. The decline in London recruitment is not a one-off. It is the leading edge of a structural shift in demand for professional services labour.
Third, the cost of being a British manufacturer is becoming uncompetitive. Chemicals and steel stockholders are both in the bottom decile of growth, and the common thread is energy and global oversupply, not domestic demand.
The companies winning in 2026 are the ones positioned at the intersection of demographic change (ageing, wealth transfer), policy mandates (net zero) and the post-pandemic rebound (aerospace). The companies losing are exposed to imported energy, imported labour assumptions, or imported deflation from Chinese overcapacity.
That is the league table. The question for any operator, investor or analyst is simple: which side of it are you on?
FAQ
Which UK industry is growing fastest in 2026?
Green Deal Installers, with the latest year's sales growth of +14.3%. It is also the only major UK industry on our list to have posted four consecutive years of double-digit growth.
Which UK industry is declining fastest?
Steel Stockholders, with sales down 8.4% in the latest year and 8.7% the year before. It is the largest two-year sales decline of any major UK industry we track.
Is fintech still growing in the UK?
Yes. Despite headlines about a funding winter, UK fintech sales grew 9.8% in the latest reporting year, broadly in line with its four-year average.
Why is recruitment struggling?
Two reasons. NHS rate caps have hit healthcare recruitment hard, and white-collar hiring across the City has slowed sharply as employers re-evaluate headcount, partly in response to AI productivity tools.
What's happening to UK aerospace?
A dramatic recovery. After a -2.7% year four years ago, aerospace has posted +17.6%, +15.1% and +10.5% growth in the three years since, driven by record commercial-aircraft backlogs and rising defence spend.
Where can I see the full data?
This blog draws on the Plimsoll UK Industry database, covering 1600 industries and the latest filed accounts of the leading companies in each sector. Full sector reports are available on request.
Data: Plimsoll UK Industry Analyses, May 2026. Growth figures are year-on-year aggregate sales growth across the leading companies in each named industry.
