Largest companies in the United Kingdom
The 75 companies domiciled in the United Kingdom that trade on a US exchange, ranked by market capitalisation. Domicile comes from each company's own SEC filing, so a company headquartered here but listed only on its home market does not appear.
Combined market cap
$2.314 T
2.3% of all US-listed value
Companies
75
Ranked #4 of 55 countries
Average
$30.858 B
Mean market cap per company
| # | Name | Market cap | Close | Session | Country |
|---|---|---|---|---|---|
| 1 | ArmARM | $353.9B | $332.56 | -0.19% | United Kingdom |
| 2 | HsbcHSBC | $344.2B | $100.25 | -1.32% | United Kingdom |
| 3 | AstrazenecaAZN | $253.3B | $163.33 | -2.99% | United Kingdom |
| 4 | UnileverUL | $133.9B | $62.16 | -1.22% | United Kingdom |
| 5 | British American Tobacco p.l.c.BTI | $120.7B | $55.85 | +0.18% | United Kingdom |
| 6 | BpBP | $116.5B | $44.49 | +3.23% | United Kingdom |
| 7 | GSKGSK | $100.5B | $49.71 | -1.99% | United Kingdom |
| 8 | Lloyds Banking GroupLYG | $83.6B | $5.64 | -2.42% | United Kingdom |
| 9 | BarclaysBCS | $81.6B | $24.29 | -2.72% | United Kingdom |
| 10 | National GridNGG | $79.0B | $75.25 | -2.10% | United Kingdom |
| 11 | NatWest GroupNWG | $71.2B | $17.91 | -3.55% | United Kingdom |
| 12 | RelxRELX | $58.1B | $33.22 | +0.73% | United Kingdom |
| 13 | DiageoDEO | $47.9B | $86.11 | -1.44% | United Kingdom |
| 14 | Coca-Cola Europacific PartnersCCEP | $45.3B | $99.69 | -2.56% | United Kingdom |
| 15 | Ferguson EnterprisesFERG | $42.8B | $221.17 | +0.00% | United Kingdom |
| 16 | HaleonHLN | $40.1B | $9.11 | -1.51% | United Kingdom |
| 17 | Vodafone Group PublicVOD | $37.8B | $16.35 | -1.63% | United Kingdom |
| 18 | PrudentialPUK | $31.6B | $25.26 | -2.28% | United Kingdom |
| 19 | Willis Towers WatsonWTW | $27.8B | $298.99 | -0.91% | United Kingdom |
| 20 | Roivant SciencesROIV | $26.6B | $36.82 | -3.66% | United Kingdom |
| 21 | nVent ElectricNVT | $26.4B | $162.85 | +0.12% | United Kingdom |
| 22 | Intercontinental Hotels GroupIHG | $22.3B | $156.13 | +0.83% | United Kingdom |
| 23 | AmcorAMCR | $19.8B | $42.80 | -1.02% | United Kingdom |
| 24 | CNH IndustrialCNH | $17.0B | $13.75 | +0.58% | United Kingdom |
| 25 | Wise GroupWSE | $14.0B | $11.35 | -1.39% | United Kingdom |
| 26 | StellantisSTLA | $13.4B | $4.62 | -4.35% | United Kingdom |
| 27 | Smith & NephewSNN | $11.2B | $26.82 | -2.47% | United Kingdom |
| 28 | PearsonPSO | $9.56B | $15.89 | -0.19% | United Kingdom |
| 29 | AptivAPTV | $9.38B | $45.17 | +1.25% | United Kingdom |
| 30 | Klarna GroupKLAR | $9.13B | $12.94 | -5.34% | United Kingdom |
| 31 | Gates IndustrialGTES | $6.67B | $26.36 | +0.80% | United Kingdom |
| 32 | DPCDPC | $6.26B | $41.93 | +3.15% | United Kingdom |
| 33 | Marex GroupMRX | $5.31B | $71.59 | -1.46% | United Kingdom |
| 34 | LivaNovaLIVN | $4.25B | $77.16 | -1.69% | United Kingdom |
| 35 | Indivior PharmaceuticalsINDV | $4.24B | $35.91 | -0.77% | United Kingdom |
| 36 | newcleoNWCL | $3.99B | $7.83 | -3.87% | United Kingdom |
| 37 | Manchester UnitedMANU | $3.53B | $20.49 | -0.10% | United Kingdom |
| 38 | TORMTRMD | $3.49B | $34.42 | -0.61% | United Kingdom |
| 39 | VersigentVGNT | $3.27B | $46.20 | -1.89% | United Kingdom |
| 40 | Acadian Asset ManagementAAMI | $3.25B | $91.51 | -0.42% | United Kingdom |
| 41 | Liberty GlobalLBTYA | $3.23B | $9.48 | -4.92% | United Kingdom |
| 42 | ReNew Energy GlobalRNW | $2.49B | $6.84 | +0.00% | United Kingdom |
| 43 | COMPASS PathwaysCMPS | $1.90B | $13.75 | -6.97% | United Kingdom |
| 44 | ImmunocoreIMCR | $1.62B | $31.54 | -2.71% | United Kingdom |
| 45 | Global Ship LeaseGSL | $1.60B | $44.54 | -0.67% | United Kingdom |
| 46 | Nomad FoodsNOMD | $1.52B | $10.71 | +2.00% | United Kingdom |
| 47 | NavigatorNVGS | $1.42B | $23.04 | -2.21% | United Kingdom |
| 48 | ClarivateCLVT | $1.17B | $1.83 | -3.17% | United Kingdom |
| 49 | Rezolve AiRZLV | $912.9M | $2.28 | -2.56% | United Kingdom |
| 50 | FerroglobeGSM | $782.9M | $4.19 | -2.78% | United Kingdom |
| 51 | VtexVTEX | $624.5M | $3.61 | -0.55% | United Kingdom |
| 52 | Arqit QuantumARQQ | $543.0M | $22.54 | -2.17% | United Kingdom |
| 53 | Silence TherapeuticsSLN | $538.7M | $11.51 | -6.35% | United Kingdom |
| 54 | Autolus TherapeuticsAUTL | $519.0M | $1.95 | -3.94% | United Kingdom |
| 55 | LuxferLXFR | $462.1M | $17.27 | -0.12% | United Kingdom |
| 56 | Guardian Metal ResourcesGMTL | $432.2M | $10.87 | -5.07% | United Kingdom |
| 57 | KNOT Offshore PartnersKNOP | $363.2M | $10.79 | -1.37% | United Kingdom |
| 58 | PaysafePSFE | $336.8M | $6.45 | -3.88% | United Kingdom |
| 59 | Bicycle TherapeuticsBCYC | $252.0M | $3.60 | -3.48% | United Kingdom |
| 60 | Better Home & FinanceBETR | $231.0M | $12.16 | -7.46% | United Kingdom |
| 61 | Energys GroupENGS | $154.9M | $2.86 | +0.35% | United Kingdom |
| 62 | Tiziana Life SciencesTLSA | $133.6M | $1.05 | +17.99% | United Kingdom |
| 63 | VivoPowerVIVO | $123.5M | $3.86 | +0.26% | United Kingdom |
| 64 | Vertical AerospaceEVTL | $117.2M | $0.68 | -7.47% | United Kingdom |
| 65 | EndavaDAVA | $108.7M | $2.00 | -5.21% | United Kingdom |
| 66 | Mereo BioPharma GroupMREO | $52.8M | $0.34 | +7.59% | United Kingdom |
| 67 | OneMedNetONMD | $38.8M | $0.65 | +0.69% | United Kingdom |
| 68 | Argo BlockchainARBK | $33.1M | $2.48 | -4.62% | United Kingdom |
| 69 | Akari TherapeuticsAKTX | $18.8M | $9.66 | -3.88% | United Kingdom |
| 70 | RedCloudRCT | $13.3M | $0.19 | +2.10% | United Kingdom |
| 71 | Blue GoldBGL | $8.91M | $0.22 | -3.75% | United Kingdom |
| 72 | NuCanaNCNA | $5.45M | $1.31 | -1.50% | United Kingdom |
| 73 | Virax Biolabs GroupVRAX | $3.43M | $2.55 | +2.00% | United Kingdom |
| 74 | AkandaAKAN | $1.68M | $3.11 | -3.71% | United Kingdom |
| 75 | Biodexa PharmaceuticalsBDRX | $709.4K | $0.69 | +1.23% | United Kingdom |
All 75 companies. One row per company, with secondary share classes folded into their primary listing. Updated 24 Sept 2026.
Other countries
๐บ๐ธ United States 4,029๐จ๐ฆ Canada 242๐น๐ผ Taiwan 24๐ฐ๐ท South Korea 12๐ณ๐ฑ Netherlands 24๐ฏ๐ต Japan 27๐จ๐ญ Switzerland 26๐ฎ๐ช Ireland 22๐จ๐ณ China 250๐ง๐ท Brazil 27๐ฆ๐บ Australia 30๐ซ๐ท France 16๐ฉ๐ช Germany 14๐ช๐ธ Spain 5๐ฎ๐ณ India 9๐ฑ๐บ Luxembourg 17๐ฎ๐ฑ Israel 117๐ฎ๐น Italy 6๐ฉ๐ฐ Denmark 7๐ฒ๐ฝ Mexico 16๐ง๐ฒ Bermuda 36๐ง๐ช Belgium 7๐ฐ๐พ Cayman Islands 31๐ฆ๐ท Argentina 14All countries โ
Figures come from SEC filings and daily market prices. Companies listed only outside the US are not covered: see methodology.