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Top FTSE AIM All-Share Companies by Market Cap and Stocks in 2026

This is the list of the largest public listed companies in the FTSE AIM All-Share index ranked by market capitalization, together with links to their reference stock, sector and industry.

FTSE AIM All-Share Chart & Analysis

Top FTSE AIM All-Share Companies Ranking by Market Cap as of Jan. 1, 2026

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Ranking Company Stock Market Cap (USD) Country Sector Industry
631 Molecular Energies PLC MEN United Kingdom UK Energy UK Oil & Gas E&P
632 Celadon Pharmaceuticals Plc CEL United Kingdom UK Healthcare UK Drug Manufacturers—Specialty & Generic
633 Nexxen International Ltd. NEXN Israel Israeli Communication Services Israeli Advertising Agencies
634 Next 15 Group PLC NFG United Kingdom UK Communication Services UK Advertising Agencies
635 Harland & Wolff Group Holdings Plc HARL United Kingdom UK Industrials UK Aerospace & Defense
636 LBG Media plc LBG United Kingdom UK Communication Services UK Publishing
637 Quantum Blockchain Technologies Plc QBT United Kingdom UK Financials UK Capital Markets
638 Cavendish Financial plc CAV United Kingdom UK Financials UK Capital Markets
639 Challenger Energy Group PLC CEG United Kingdom UK Energy UK Oil & Gas E&P
640 Seed Innovations Limited SEED United Kingdom UK Financials UK Asset Management
641 Cleantech Lithium PLC CTL United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
642 Facilities by ADF plc ADF United Kingdom UK Consumer Discretionary UK Recreational Vehicles
643 XP Factory Plc XPF United Kingdom UK Consumer Discretionary UK Leisure
644 hVIVO plc HVO United Kingdom UK Healthcare UK Biotechnology

Top FTSE AIM All-Share Companies Ranking by Market Cap as of Jan. 1, 2026

631. Molecular Energies PLC

Company Profile: Molecular Energies PLC
Stock: MEN wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

632. Celadon Pharmaceuticals Plc

Company Profile: Celadon Pharmaceuticals Plc
Stock: CEL wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Drug Manufacturers—Specialty & Generic

633. Nexxen International Ltd.

Company Profile: Nexxen International Ltd.
Stock: NEXN wb_incandescent
Country: Israel
Sector: Israeli Communication Services
Industry: Israeli Advertising Agencies

634. Next 15 Group PLC

Company Profile: Next 15 Group PLC
Stock: NFG wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Advertising Agencies

635. Harland & Wolff Group Holdings Plc

Company Profile: Harland & Wolff Group Holdings Plc
Stock: HARL wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Aerospace & Defense

636. LBG Media plc

Company Profile: LBG Media plc
Stock: LBG wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Publishing

637. Quantum Blockchain Technologies Plc

Company Profile: Quantum Blockchain Technologies Plc
Stock: QBT wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

638. Cavendish Financial plc

Company Profile: Cavendish Financial plc
Stock: CAV wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

639. Challenger Energy Group PLC

Company Profile: Challenger Energy Group PLC
Stock: CEG wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

640. Seed Innovations Limited

Company Profile: Seed Innovations Limited
Stock: SEED wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

641. Cleantech Lithium PLC

Company Profile: Cleantech Lithium PLC
Stock: CTL wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

642. Facilities by ADF plc

Company Profile: Facilities by ADF plc
Stock: ADF wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Recreational Vehicles

643. XP Factory Plc

Company Profile: XP Factory Plc
Stock: XPF wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Leisure

644. hVIVO plc

Company Profile: hVIVO plc
Stock: HVO wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

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