Biggest companies in Cardiff 2026

Companies
341
Total revenue
£13.09bn
Total jobs
88,292

Biggest companies in Cardiff by revenue 2026

Top filers by latest reported turnover

# Company Revenue Employees
01 GLAS CYMRU HOLDINGS CYFYNGEDIG group accounts Holding company for Welsh Water £1.17bn 4,056
02 7 STEEL (UK) HOLDINGS LIMITED group accounts Holding company for steel manufacturer £533M 1,591
03 UK FRISBEE DEBTCO LIMITED group accounts £445M 3,278
04 EUI LIMITED £357M 11,773
05 GOCOMPARE.COM LIMITED £192M —
06 INSPOP.COM LIMITED £173M 242
07 SHAW HEALTHCARE (GROUP) LIMITED group accounts Employee-owned care home operator £151M 3,314
08 ROM GROUP LIMITED group accounts Steel manufacturing holding company £149M 329
09 EUROCLAD GROUP LIMITED group accounts £140M 324
10 BRC LIMITED Steel reinforcement products manufacturer £128M 279
11 JULIAN HODGE BANK LIMITED £123M 288
12 FLETCHERS BAKERIES LIMITED £120M 542

Biggest employers in Cardiff

Top filers by latest reported headcount

# Company Employees
01 ADMIRAL GROUP PLC group accounts 14,998
02 EUI LIMITED 11,773
03 DWR CYMRU CYFYNGEDIG Regulated water and wastewater utility 4,056
04 SHAW HEALTHCARE (GROUP) LIMITED group accounts Employee-owned care home operator 3,314
05 UK FRISBEE DEBTCO LIMITED group accounts 3,278
06 7 STEEL (UK) HOLDINGS LIMITED group accounts Holding company for steel manufacturer 1,591
07 VICTIM SUPPORT 1,339
08 HUNKY DORY RESTAURANTS LTD 1,301
09 CARTREFI CYMRU CO-OPERATIVE LIMITED 1,221
10 CARDIFF UNIVERSITY STUDENTS' UNION 938
11 FURAT ACQUISITIONS LTD 746
12 LEXISNEXIS RISK SOLUTIONS UK LIMITED 728

Most profitable companies in Cardiff 2026

Top operating filers by latest pre-tax profit

# Company Pre-tax profit Employees
01 ADMIRAL GROUP PLC group accounts £955M 14,998
02 EUI LIMITED £703M 11,773
03 CREDITSAFE UK HOLDING LIMITED £60M 26
04 CREDITSAFE SERVICES LIMITED £40M 293
05 INSPOP.COM LIMITED £35M 242
06 EUROCLAD GROUP LIMITED group accounts £21M 324
07 LEXISNEXIS RISK SOLUTIONS UK LIMITED £16M 728
08 SHAW HEALTHCARE (GROUP) LIMITED group accounts Employee-owned care home operator £15M 3,314
09 SAFECONTRACTOR LIMITED £13M 203
10 ADMIRAL FINANCIAL SERVICES LIMITED £13M 342
11 MILLENNIUM STADIUM EXPERIENCE LIMITED £9M 25
12 PROSEAL UK LIMITED £8M 310

Best-paid boards in Cardiff

Highest directors' remuneration disclosed

# Company Directors' pay Employees
01 ADMIRAL GROUP PLC group accounts £8M 14,998
02 DWR CYMRU CYFYNGEDIG Regulated water and wastewater utility £2M 4,056
03 CASTLE LEISURE LTD £2M 550
04 EUI LIMITED £2M 11,773
05 UK FRISBEE DEBTCO LIMITED group accounts £2M 3,278
06 RDX HOLDINGS LTD group accounts £1M 37
07 SAFECONTRACTOR LIMITED £1M 203
08 INSPIRETEC LTD £1M 77
09 ORANGEBOX LIMITED Manufacturer of ergonomic office furniture £1M 359
10 SALISBURY TOPCO LIMITED group accounts £1M 35
11 BAD WOLF LTD £1M 40
12 CARRON ENERGY LIMITED £1M 51

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.

Filed accounts in October 2026 · Cardiff

53 of the companies we profile in Cardiff filed a new set of accounts in the month to 1 Oct 2026 — the biggest by turnover. Whole register →

# Company Turnover YoY Employees Year to
01 GLAS CYMRU HOLDINGS CYFYNGEDIG Utilities £1.2bn +28% 4,056 31 Mar 2026
02 DWR CYMRU CYFYNGEDIG Utilities £1.2bn +28% 4,056 31 Mar 2026
03 GLAS CYMRU ANGHYFYNGEDIG Utilities £1.2bn +28% — 31 Mar 2026
04 INSPOP.COM LIMITED Technology £172.6m +16% 242 31 Dec 2025
05 EUROCLAD GROUP LIMITED Industrials £140.4m -20% 324 31 Dec 2025
06 DALATA CARDIFF LIMITED Consumer Discretionary £98.9m +24% 511 31 Dec 2025
07 CARDO (WALES & WEST) LIMITED Industrials £75.6m +28% 496 28 Feb 2026
08 HUNKY DORY RESTAURANTS LTD Consumer Discretionary £63.7m +4% 1,301 31 Dec 2025
09 H & B SUPPLIES LIMITED Consumer Discretionary £56.5m +0% 36 31 Dec 2025
10 PROSEAL UK LIMITED Industrials £52.7m -6% 310 31 Dec 2025

Companies ranked from their latest filed accounts at registered offices in Cardiff. 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.