UK company leaderboards 2026

The largest UK companies ranked by turnover from their latest filed accounts.

The UK's biggest accountancy firms ranked by their own filed accounts — not survey fee income.

Ranked by filed LLP accounts, not the Legal 500 survey — the Magic Circle, global and national firms.

Every big club ranked by revenue — the Big Six, the promotion windfall and the relegation cliff in real numbers.

Greene King, Wetherspoon, Stonegate and the family brewers — ranked by filed turnover, tagged managed vs tenanted.

Who owns your local vet — five PE/corporate giants hold 95% of the market, in the real numbers.

Hospitals by filed turnover — private-pay vs NHS-funded, and who really owns Britain's healthcare.

Greggs, McDonald's, Costa, Nando's and more — how much your favourite chain really makes.

The UK's biggest contractors ranked by their own filed accounts — housebuilders and JVs ranked separately or excluded.

Audited revenue, not self-reported completions — plcs and private builders ranked together.

Parcels, 3PL, haulage and cold chain by their own filed accounts — captives and airports excluded.

Integrated FM, cleaning and M&E by their own filed accounts — PFI shells and captives excluded.

Design, PM and cost consultancies by their own filed accounts — who owns them is half the story.

Ranked by filed accounts, not survey returns — Foster's dominance quantified, the non-disclosers named.

Residential and nursing care by their own filed accounts — PE opco shells and hospital groups excluded.

Suppliers, generators and networks by filed turnover — with the pass-through caveat that makes energy revenue a poor size proxy.

Drug makers, multinational UK arms and CDMOs by filed turnover — distributors excluded, GSK and AstraZeneca explained.

Neobanks, payments and wealthtech by filed accounts — the fastest-growing list we publish.

The UK's biggest agencies by their own filed accounts — one entity per global network, platforms and media owners excluded.

Guarding, systems and cash services ranked by their own filed accounts — UK entities only, with staff numbers.

Ranked by filed fee revenue, not AUM — with the firms whose accounts can't be compared named, not fudged.

Trading businesses sitting on cash worth many times a year's turnover.

The literal war-chests — companies sitting on the biggest absolute cash piles (banks excluded).

Owner-managers and holdcos pulling out cash worth multiples of net assets.

The most turnover wrung from each member of staff.

The sharpest year-on-year revenue declines between two £1M+ years.

Profit was falling, then turned and rose again — the deepest V.

Profit was rising, then turned and fell — the deepest drop.

Britain's longest-surviving businesses still filing accounts and trading today.

The UK's largest wage bills — companies spending the most on staff.

The most profit wrung from each member of staff — the lean and mighty.

Companies that have grown profit every single year on their filed record.

Companies that paid big dividends in a year they made a loss.

Companies under 12 years old already throwing off serious profit.

Companies that have grown their headcount every single filed year.

Profit up while headcount fell — the biggest operational-leverage gains.

Companies that own their niche — the lion's share of a whole product market.

The companies booking the biggest corporation-tax charges — top contributors to the exchequer.