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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
601 CT Automotive Group plc CTA United Kingdom UK Consumer Discretionary UK Auto Parts
602 Cordel Group Plc CRDL Australia Australian Technology Australian Software—Application
603 Clean Power Hydrogen Plc CPH2 United Kingdom UK Industrials UK Specialty Industrial Machinery
604 Northcoders Group PLC CODE United Kingdom UK Consumer Staples UK Education & Training Services
605 Cambridge Nutritional Sciences PLC CNSL United Kingdom UK Healthcare UK Medical Instruments & Supplies
606 Chapel Down Group Plc CDGP United Kingdom UK Consumer Staples UK Beverages—Wineries & Distilleries
607 BiVictriX Therapeutics Plc BVX United Kingdom UK Healthcare UK Biotechnology
608 Fiinu Plc BANK United Kingdom UK Financials UK Credit Services
609 ATOME Energy PLC ATOM United Kingdom UK Utilities UK Utilities—Renewable
610 Acuity RM Group PLC ACRM United Kingdom UK Financials UK Asset Management
611 NIOX Group Plc NIOX United Kingdom UK Healthcare UK Medical Devices
612 Kinovo plc KINO United Kingdom UK Industrials UK Engineering & Construction
613 Alpha Group International plc ALPH United Kingdom UK Financials UK Capital Markets
614 Celebrus Technologies plc CLBS United Kingdom UK Technology UK Software—Application
615 Weiss Korea Opportunity Fund Ltd WKOF United States US Financials US Asset Management
616 Metals One PLC MET1 United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
617 Ashtead Technology Holdings Plc AT. United Kingdom UK Energy UK Oil & Gas Equipment & Services
618 Shuka Minerals PLC SKA United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
619 Atlantic Lithium Limited ALL Australia Australian Basic Materials Australian Other Industrial Metals & Mining
620 Bradda Head Holdings Limited BHL United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
621 Aptamer Group plc APTA United Kingdom UK Healthcare UK Biotechnology
622 Quadrise Plc QED United Kingdom UK Energy UK Oil & Gas Integrated
623 Bens Creek Group Plc BEN United Kingdom UK Basic Materials UK Coking Coal
624 Gelion plc GELN United Kingdom UK Industrials UK Electrical Equipment & Parts
625 Software Circle plc SFT United Kingdom UK Industrials UK Specialty Business Services
626 Sondrel SND United Kingdom UK Technology UK Semiconductors
627 4GLOBAL plc 4GBL United Kingdom UK Technology UK Software—Application
628 Tungsten West PLC TUN United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
629 CMO Group PLC CMO United Kingdom UK Consumer Discretionary UK Home Improvement Retail
630 Roadside Real Estate plc ROAD United Kingdom UK Real Estate UK Real Estate—Development

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

601. CT Automotive Group plc

Company Profile: CT Automotive Group plc
Stock: CTA wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Auto Parts

602. Cordel Group Plc

Company Profile: Cordel Group Plc
Stock: CRDL wb_incandescent
Country: Australia
Sector: Australian Technology
Industry: Australian Software—Application

603. Clean Power Hydrogen Plc

Company Profile: Clean Power Hydrogen Plc
Stock: CPH2 wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Specialty Industrial Machinery

604. Northcoders Group PLC

Company Profile: Northcoders Group PLC
Stock: CODE wb_incandescent
Country: United Kingdom
Sector: UK Consumer Staples
Industry: UK Education & Training Services

605. Cambridge Nutritional Sciences PLC

Company Profile: Cambridge Nutritional Sciences PLC
Stock: CNSL wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Medical Instruments & Supplies

606. Chapel Down Group Plc

Company Profile: Chapel Down Group Plc
Stock: CDGP wb_incandescent
Country: United Kingdom
Sector: UK Consumer Staples
Industry: UK Beverages—Wineries & Distilleries

607. BiVictriX Therapeutics Plc

Company Profile: BiVictriX Therapeutics Plc
Stock: BVX wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

608. Fiinu Plc

Company Profile: Fiinu Plc
Stock: BANK wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Credit Services

609. ATOME Energy PLC

Company Profile: ATOME Energy PLC
Stock: ATOM wb_incandescent
Country: United Kingdom
Sector: UK Utilities
Industry: UK Utilities—Renewable

610. Acuity RM Group PLC

Company Profile: Acuity RM Group PLC
Stock: ACRM wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

611. NIOX Group Plc

Company Profile: NIOX Group Plc
Stock: NIOX wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Medical Devices

612. Kinovo plc

Company Profile: Kinovo plc
Stock: KINO wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Engineering & Construction

613. Alpha Group International plc

Company Profile: Alpha Group International plc
Stock: ALPH wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

614. Celebrus Technologies plc

Company Profile: Celebrus Technologies plc
Stock: CLBS wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

615. Weiss Korea Opportunity Fund Ltd

Company Profile: Weiss Korea Opportunity Fund Ltd
Stock: WKOF wb_incandescent
Country: United States
Sector: US Financials
Industry: US Asset Management

616. Metals One PLC

Company Profile: Metals One PLC
Stock: MET1 wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

617. Ashtead Technology Holdings Plc

Company Profile: Ashtead Technology Holdings Plc
Stock: AT. wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas Equipment & Services

618. Shuka Minerals PLC

Company Profile: Shuka Minerals PLC
Stock: SKA wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

619. Atlantic Lithium Limited

Company Profile: Atlantic Lithium Limited
Stock: ALL wb_incandescent
Country: Australia
Sector: Australian Basic Materials
Industry: Australian Other Industrial Metals & Mining

620. Bradda Head Holdings Limited

Company Profile: Bradda Head Holdings Limited
Stock: BHL wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

621. Aptamer Group plc

Company Profile: Aptamer Group plc
Stock: APTA wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

622. Quadrise Plc

Company Profile: Quadrise Plc
Stock: QED wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas Integrated

623. Bens Creek Group Plc

Company Profile: Bens Creek Group Plc
Stock: BEN wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Coking Coal

624. Gelion plc

Company Profile: Gelion plc
Stock: GELN wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Electrical Equipment & Parts

625. Software Circle plc

Company Profile: Software Circle plc
Stock: SFT wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Specialty Business Services

626. Sondrel

Company Profile: Sondrel
Stock: SND wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Semiconductors

627. 4GLOBAL plc

Company Profile: 4GLOBAL plc
Stock: 4GBL wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

628. Tungsten West PLC

Company Profile: Tungsten West PLC
Stock: TUN wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

629. CMO Group PLC

Company Profile: CMO Group PLC
Stock: CMO wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Home Improvement Retail

630. Roadside Real Estate plc

Company Profile: Roadside Real Estate plc
Stock: ROAD wb_incandescent
Country: United Kingdom
Sector: UK Real Estate
Industry: UK Real Estate—Development

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