United Kingdom

Top 1000 largest UK Companies by Market Cap

This is the list of the largest public listed companies from the United Kingdom by market capitalization with links to their reference stock, sector and industry.

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Top Companies from the United Kingdom as of Jan. 01, 2026

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Rank Company Market Cap (USD) Country Sector Industry
511 Baillie Gifford European Growth Trust plc $446.1 M United Kingdom UK Financials UK Asset Management
512 The Property Franchise Group plc $443.6 M United Kingdom UK Real Estate UK Real Estate Services
513 Octopus Renewables Infrastructure Trust plc $439.5 M United Kingdom UK Financials UK Asset Management
514 ScION Tech Growth II $437.3 M

(Jan. 1, 2023)

 United Kingdom UK Financials UK Shell Companies
515 Sabre Insurance Group plc $437.2 M United Kingdom UK Financials UK Insurance Brokers
516 Auction Technology Group plc $437.0 M United Kingdom UK Technology UK Software—Application
517 Telit Communications plc $435.1 M

(Aug. 1, 2021)

 United Kingdom UK Technology UK Communication Equipment
518 Baillie Gifford Shin Nippon plc $434.2 M United Kingdom UK Financials UK Asset Management
519 Henderson High Income Trust $434.0 M United Kingdom UK Financials UK Asset Management
520 On the Beach Group plc $433.9 M United Kingdom UK Consumer Discretionary UK Travel Services
521 Empire Metals Limited $433.0 M United Kingdom UK Basic Materials UK Other Precious Metals & Mining
522 Central Asia Metals plc $432.8 M United Kingdom UK Basic Materials UK Copper
523 FW Thorpe plc $430.0 M United Kingdom UK Industrials UK Electrical Equipment & Parts
524 Next Fifteen Communications Group plc $427.5 M United Kingdom UK Communication Services UK Advertising Agencies
525 IDOX plc $423.4 M United Kingdom UK Technology UK Software—Application
526 Scottish Oriental Smaller Companies Trust plc $422.0 M United Kingdom UK Financials UK Asset Management
527 RWS Holdings plc $421.5 M United Kingdom UK Industrials UK Consulting Services
528 CentralNic Group plc $420.8 M

(July 1, 2023)

 United Kingdom UK Communication Services UK Internet Content & Information
529 Henderson Euro Trust $420.8 M

(July 1, 2024)

 United Kingdom UK Financials UK Asset Management
530 Loungers plc $418.1 M

(Jan. 1, 2025)

 United Kingdom UK Consumer Discretionary UK Restaurants
531 SThree plc $417.5 M

(July 1, 2025)

 United Kingdom UK Industrials UK Staffing & Employment Services
532 Caledonia Mining Corporation plc $417.1 M

(July 1, 2025)

 United Kingdom UK Basic Materials UK Gold
533 Henderson International Income Trust $415.9 M

(Jan. 1, 2025)

 United Kingdom UK Financials UK Asset Management
534 JPMorgan Asia Growth & Income plc $414.3 M United Kingdom UK Financials UK Asset Management
535 Alliance Pharma plc $413.8 M

(Jan. 1, 2025)

 United Kingdom UK Healthcare UK Drug Manufacturers—Specialty & Generic
536 International Biotechnology Trust $412.2 M United Kingdom UK Financials UK Asset Management
537 JPMorgan Elect plc ­- Managed Growth $409.5 M

(Dec. 1, 2022)

 United Kingdom UK Financials UK Asset Management
538 PZ Cussons plc $408.5 M United Kingdom UK Consumer Staples UK Household & Personal Products
539 Halfords Group plc $408.2 M United Kingdom UK Consumer Discretionary UK Specialty Retail
540 CC Japan Income & Growth Trust plc $407.1 M United Kingdom UK Financials UK Asset Management

Top Companies from the United Kingdom as of Jan. 01, 2026

511. Baillie Gifford European Growth Trust plc

Company Profile: Baillie Gifford European Growth Trust plc
Market Cap (USD): $446.1 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

512. The Property Franchise Group plc

Company Profile: The Property Franchise Group plc
Market Cap (USD): $443.6 M
Country: United Kingdom
Sector: UK Real Estate
Industry: UK Real Estate Services

513. Octopus Renewables Infrastructure Trust plc

Company Profile: Octopus Renewables Infrastructure Trust plc
Market Cap (USD): $439.5 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

514. ScION Tech Growth II

Company Profile: ScION Tech Growth II
Market Cap (USD): $437.3 M (Jan. 1, 2023)
Country: United Kingdom
Sector: UK Financials
Industry: UK Shell Companies

515. Sabre Insurance Group plc

Company Profile: Sabre Insurance Group plc
Market Cap (USD): $437.2 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Insurance Brokers

516. Auction Technology Group plc

Company Profile: Auction Technology Group plc
Market Cap (USD): $437.0 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

517. Telit Communications plc

Company Profile: Telit Communications plc
Market Cap (USD): $435.1 M (Aug. 1, 2021)
Country: United Kingdom
Sector: UK Technology
Industry: UK Communication Equipment

518. Baillie Gifford Shin Nippon plc

Company Profile: Baillie Gifford Shin Nippon plc
Market Cap (USD): $434.2 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

519. Henderson High Income Trust

Company Profile: Henderson High Income Trust
Market Cap (USD): $434.0 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

520. On the Beach Group plc

Company Profile: On the Beach Group plc
Market Cap (USD): $433.9 M
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Travel Services

521. Empire Metals Limited

Company Profile: Empire Metals Limited
Market Cap (USD): $433.0 M
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Precious Metals & Mining

522. Central Asia Metals plc

Company Profile: Central Asia Metals plc
Market Cap (USD): $432.8 M
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Copper

523. FW Thorpe plc

Company Profile: FW Thorpe plc
Market Cap (USD): $430.0 M
Country: United Kingdom
Sector: UK Industrials
Industry: UK Electrical Equipment & Parts

524. Next Fifteen Communications Group plc

Company Profile: Next Fifteen Communications Group plc
Market Cap (USD): $427.5 M
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Advertising Agencies

525. IDOX plc

Company Profile: IDOX plc
Market Cap (USD): $423.4 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

526. Scottish Oriental Smaller Companies Trust plc

Company Profile: Scottish Oriental Smaller Companies Trust plc
Market Cap (USD): $422.0 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

527. RWS Holdings plc

Company Profile: RWS Holdings plc
Market Cap (USD): $421.5 M
Country: United Kingdom
Sector: UK Industrials
Industry: UK Consulting Services

528. CentralNic Group plc

Company Profile: CentralNic Group plc
Market Cap (USD): $420.8 M (July 1, 2023)
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Internet Content & Information

529. Henderson Euro Trust

Company Profile: Henderson Euro Trust
Market Cap (USD): $420.8 M (July 1, 2024)
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

530. Loungers plc

Company Profile: Loungers plc
Market Cap (USD): $418.1 M (Jan. 1, 2025)
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Restaurants

531. SThree plc

Company Profile: SThree plc
Market Cap (USD): $417.5 M (July 1, 2025)
Country: United Kingdom
Sector: UK Industrials
Industry: UK Staffing & Employment Services

532. Caledonia Mining Corporation plc

Company Profile: Caledonia Mining Corporation plc
Market Cap (USD): $417.1 M (July 1, 2025)
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Gold

533. Henderson International Income Trust

Company Profile: Henderson International Income Trust
Market Cap (USD): $415.9 M (Jan. 1, 2025)
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

534. JPMorgan Asia Growth & Income plc

Company Profile: JPMorgan Asia Growth & Income plc
Market Cap (USD): $414.3 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

535. Alliance Pharma plc

Company Profile: Alliance Pharma plc
Market Cap (USD): $413.8 M (Jan. 1, 2025)
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Drug Manufacturers—Specialty & Generic

536. International Biotechnology Trust

Company Profile: International Biotechnology Trust
Market Cap (USD): $412.2 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

537. JPMorgan Elect plc ­- Managed Growth

Company Profile: JPMorgan Elect plc ­- Managed Growth
Market Cap (USD): $409.5 M (Dec. 1, 2022)
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

538. PZ Cussons plc

Company Profile: PZ Cussons plc
Market Cap (USD): $408.5 M
Country: United Kingdom
Sector: UK Consumer Staples
Industry: UK Household & Personal Products

539. Halfords Group plc

Company Profile: Halfords Group plc
Market Cap (USD): $408.2 M
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Specialty Retail

540. CC Japan Income & Growth Trust plc

Company Profile: CC Japan Income & Growth Trust plc
Market Cap (USD): $407.1 M
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

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