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2874 companies · fiscal year 2025 · SEC EDGAR · September 25, 2026

Largest companies in the United Kingdom by operating income

Operating income is profit from the core business before interest and tax. It strips out financing decisions, so it compares operations rather than balance sheets. Figures are for fiscal year 2025 and are read directly from each company's SEC filings; the source column on every row links to the document.

Ranks 1–39 of 39 · Fiscal year 2025 · Data as of September 25, 2026

Barclays (BCS) tops the list with $31.1B in operating income for fiscal 2025, ahead of Barclays Bank ($21.6B) and Rio Tinto ($14.9B). The top 10 together report $141B in operating income; the gap between #1 and #10 is ×7.17. 39 companies in the United Kingdom report operating income, 1.8% of the 2135-filer universe. The last place on the list, Capri Holdings, comes in at $23.0M.

Operating income
#CompanyOperating incomeYoY15-year trend
1BarclaysBCSGBFinancials$31.1B+43.0%
2Barclays BankATMPGBFinancials$21.6B+35.6%
3Rio TintoRIOGBMaterials$14.9B−4.6%
4AstraZenecaAZNGBHealthcare$13.7B+37.4%
5British American Tobacco P.L.CBTIGBConsumer staples$13.2B+276.9%
6BPBPGBEnergy$12.6B+11.9%
7GSKGSKGBHealthcare$10.5B+103.5%
8UnileverULGBConsumer staples$10.2B+6.9%
9LindeLINGBMaterials$8.9B+3.3%
10DiageoDEOGBConsumer staples$4.3B−27.8%
11RelxRELXGBTechnology$4.0B+9.1%
12PrudentialPUKGBFinancials$3.3B+5.7%
13HaleonHLNGBConsumer staples$3.2B+12.8%
14Coca-Cola Europacific PartnersCCEPGBConsumer staples$3.2B+36.8%
15Willis Towers WatsonWTWGBFinancials$2.2B+256.3%
16CNH IndustrialCNHGBIndustrials$1.7B+14.6%
17TechnipfmcFTIGBEnergy$1.4B+24.1%
18Intercontinental HotelsIHGGBConsumer discretionary$1.2B+15.1%
19AmcorAMCRGBConsumer discretionary$1.0B+13.9%
20Arm HoldingsARMGBTechnology$900M+8.3%
21PentairPNRGBIndustrials$858M+6.7%
22Ihs HoldingIHSGBCommunication services$821M+36.0%
23Smith & NephewSNNGBHealthcare$794M+20.9%
24PearsonPSOGBCommunication services$669M−3.3%
25Birkenstock HoldingBIRKGBConsumer discretionary$621M+36.2%
26Wise GroupWSEGBTechnology$591M−18.9%
27Rentokil InitialRTOGBIndustrials$584M−9.3%
28WPPWPPGBCommunication services$504M−70.3%
29Nomad FoodsNOMDGBConsumer staples$368M−12.2%
30TormTRMDGBIndustrials$356M−45.9%
31Brightstar LotteryBRSLGBCommunication services$299M−56.4%
32Sensata TechnologiesSTGBTechnology$238M+59.1%
33LivanovaLIVNGBHealthcare$199M+54.5%
34Navigator HoldingsNVGSGBIndustrials$165M+15.5%
35Knot Offshore PartnersKNOPGBIndustrials$84.6M+16.1%
36Kiniksa Pharmaceuticals InternationalKNSAGBHealthcare$77.2M+$123M
37PaysafePSFEGBTechnology$71.9M−46.1%
38Luxfer HoldingsLXFRGBMaterials$24.0M−20.3%
39Capri HoldingsCPRIGBConsumer discretionary$23.0M+$49.0M

All figures from SEC filings · FY2025 · 39

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{{cite web |title=Largest companies in the United Kingdom by operating income |url=https://companiesranked.com/en/largest-companies-in-the-united-kingdom-by-operating-income |website=CompaniesRanked |date=2026-09-25 |language=en}}

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CompaniesRanked. (September 25, 2026). Largest companies in the United Kingdom by operating income. CompaniesRanked. https://companiesranked.com/en/largest-companies-in-the-united-kingdom-by-operating-income

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@misc{companiesranked-en-largest-companies-in-the-united-kingdom-by-operating-income-2026,
  author       = {{CompaniesRanked}},
  title        = {{Largest companies in the United Kingdom by operating income}},
  year         = {2026},
  howpublished = {\url{https://companiesranked.com/en/largest-companies-in-the-united-kingdom-by-operating-income}},
  note         = {Compiled from SEC EDGAR XBRL filings; data as of 2026-09-25},
  urldate      = {2026-09-25}
}

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