Biggest companies in Wales 2026
- Companies
- 1,256
- Total revenue
- £49.81bn
- Total jobs
- 236,914
Biggest companies in Wales by revenue 2026
Top filers by latest reported turnover
| # | Company | Revenue | Employees |
|---|---|---|---|
| 01 | HUWS GRAY LIMITED Blackstone-backed builders' merchant | £1.33bn | 4,762 |
| 02 | THE ROYAL MINT LIMITED State-owned coin and bullion manufacturer | £1.32bn | 752 |
| 03 | GE AIRCRAFT ENGINE SERVICES LIMITED Aircraft engine manufacturer and servicer | £1.16bn | 1,581 |
| 04 | GLAS CYMRU HOLDINGS CYFYNGEDIG group accounts Holding company for Welsh Water | £920M | 4,047 |
| 05 | TRANSPORT FOR WALES Welsh public transport authority | £808M | 4,574 |
| 06 | SINCLAIR MOTOR HOLDINGS LIMITED group accounts | £704M | 882 |
| 07 | IPSEN BIOPHARM LIMITED Biopharmaceutical manufacturing subsidiary | £661M | 713 |
| 08 | BRCK GROUP PLC group accounts | £637M | 821 |
| 09 | WALES & WEST UTILITIES LIMITED Gas distribution network operator | £552M | 1,932 |
| 10 | 7 STEEL (UK) HOLDINGS LIMITED group accounts Holding company for steel manufacturer | £533M | 1,591 |
| 11 | MARELLI AUTOMOTIVE SYSTEMS UK LIMITED KKR-backed automotive parts manufacturer | £529M | 1,257 |
| 12 | UK FRISBEE DEBTCO LIMITED group accounts Debt vehicle for Finsbury Food Group | £445M | 3,278 |
Biggest employers in Wales
Top filers by latest reported headcount
| # | Company | Employees |
|---|---|---|
| 01 | EUI LIMITED Insurance intermediary for Admiral Group | 11,191 |
| 02 | HUWS GRAY LIMITED Blackstone-backed builders' merchant | 4,762 |
| 03 | TRANSPORT FOR WALES Welsh public transport authority | 4,574 |
| 04 | DWR CYMRU CYFYNGEDIG Regulated water and wastewater utility | 4,047 |
| 05 | SHAW HEALTHCARE (GROUP) LIMITED group accounts Employee-owned care home operator | 3,314 |
| 06 | UK FRISBEE DEBTCO LIMITED group accounts Debt vehicle for Finsbury Food Group | 3,278 |
| 07 | SLH SWANSEA LIMITED | 3,135 |
| 08 | TWENTY FOUR SEVEN RECRUITMENT SERVICES LIMITED Temporary employment agency | 2,930 |
| 09 | HBL (HOLDINGS) LIMITED group accounts | 2,451 |
| 10 | OSCAR MAYER LIMITED Prepared meal manufacturer | 2,294 |
| 11 | APOLLO TEACHING SERVICES LTD | 2,166 |
| 12 | WALES & WEST UTILITIES LIMITED Gas distribution network operator | 1,932 |
Most profitable companies in Wales 2026
Top operating filers by latest pre-tax profit
| # | Company | Pre-tax profit | Employees |
|---|---|---|---|
| 01 | EUI LIMITED Insurance intermediary for Admiral Group | £439M | 11,191 |
| 02 | IPSEN BIOPHARM LIMITED Biopharmaceutical manufacturing subsidiary | £253M | 713 |
| 03 | WALES & WEST UTILITIES LIMITED Gas distribution network operator | £220M | 1,932 |
| 04 | KLA CORPORATION UK LIMITED Semiconductor equipment manufacturing subsidiary | £141M | 612 |
| 05 | FIRST HYDRO COMPANY Pumped storage electricity generator | £132M | 180 |
| 06 | SOUTH HOOK LNG TERMINAL COMPANY LTD. Liquefied natural gas terminal operator | £125M | 103 |
| 07 | GE AIRCRAFT ENGINE SERVICES LIMITED Aircraft engine manufacturer and servicer | £108M | 1,581 |
| 08 | ORTHO-CLINICAL DIAGNOSTICS In vitro diagnostics manufacturer | £90M | 638 |
| 09 | PUROLITE LTD | £80M | 255 |
| 10 | SOFIDEL UK LIMITED Tissue paper manufacturer | £79M | 881 |
| 11 | CREDITSAFE UK HOLDING LIMITED Holding company for credit reporting | £54M | 24 |
| 12 | INSPOP.COM LIMITED Price comparison website operator | £35M | 242 |
Best-paid boards in Wales
Highest directors' remuneration disclosed
| # | Company | Directors' pay | Employees |
|---|---|---|---|
| 01 | MOTONOVO FINANCE LIMITED Specialist motor finance provider | £6M | 628 |
| 02 | IRVINGQ LIMITED Aerospace and defence equipment manufacturer | £4M | 261 |
| 03 | C.WYNNE & SONS LIMITED Commercial building contractor | £3M | 66 |
| 04 | QUINSHIELD LIMITED Manufacturer of GRP composite structures | £3M | 112 |
| 05 | WATKIN JONES & SON LIMITED Residential and student accommodation developer | £3M | 284 |
| 06 | EUI LIMITED Insurance intermediary for Admiral Group | £3M | 11,191 |
| 07 | ANDREW SCOTT LTD. Civil engineering and construction contractor | £2M | 242 |
| 08 | MRA UK INVESTMENTS LIMITED | £2M | 1,052 |
| 09 | BRCK GROUP PLC group accounts | £2M | 821 |
| 10 | CHETWOOD FINANCIAL LIMITED Digital retail bank and lender | £2M | 332 |
| 11 | WREXHAM AFC LIMITED Welsh professional football club | £2M | 313 |
| 12 | THE TRADE CENTRE GROUP PLC group accounts | £2M | 638 |
Directors' remuneration as disclosed in filed accounts. Group filings may report key-management-personnel compensation, which is broader than the board; LLP members' profit share is excluded. Treat as "highest disclosed", not a like-for-like board ranking.
Companies ranked from their latest filed accounts at registered offices in Wales. Registered office is where a company files, which is not always where it trades — see the badges. Implausible outliers are excluded. Snapshot from Companies House.