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Top FTSE AIM All-Share Companies by Market Cap and Stocks in 2025

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.

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Top FTSE AIM All-Share Companies Ranking by Market Cap as of Jan. 1, 2025

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Ranking Company Stock Market Cap (USD) Country Sector Industry
451 GRC International Group plc GRC wb_incandescent $5.8 M

(Jan. 1, 2024)

 United Kingdom UK Technology UK Information Technology Services
452 Hardide plc HDD wb_incandescent $5.7 M United Kingdom UK Basic Materials UK Specialty Chemicals
453 Haydale Graphene Industries plc HAYD wb_incandescent $5.6 M United Kingdom UK Basic Materials UK Specialty Chemicals
454 Reabold Resources plc RBD wb_incandescent $5.4 M United Kingdom UK Energy UK Oil & Gas E&P
455 Mercantile Ports & Logistics Limited MPL wb_incandescent $5.4 M United Kingdom UK Industrials UK Marine Shipping
456 Trellus Health plc TRLS wb_incandescent $5.3 M United States US Healthcare US Health Information Services
457 Strategic Minerals plc SML wb_incandescent $5.3 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
458 Aferian Plc AFRN wb_incandescent $5.2 M United Kingdom UK Communication Services UK Broadcasting
459 Chamberlin plc CMH wb_incandescent $5.1 M

(Jan. 1, 2024)

 United Kingdom UK Industrials UK Specialty Industrial Machinery
460 Image Scan Holdings plc IGE wb_incandescent $5.1 M United Kingdom UK Industrials UK Security & Protection Services
461 Blue Star Capital plc BLU wb_incandescent $5.1 M United Kingdom UK Financials UK Asset Management
462 Galantas Gold Corporation GAL wb_incandescent $5.0 M Canada Canadian Basic Materials Canadian Gold
463 Serinus Energy plc SENX wb_incandescent $4.8 M United Kingdom UK Energy UK Oil & Gas E&P
464 Autins Group plc AUTG wb_incandescent $4.8 M United Kingdom UK Consumer Discretionary UK Auto Parts
465 Bowleven plc BLVN wb_incandescent $4.8 M

(July 1, 2024)

 United Kingdom UK Energy UK Oil & Gas Drilling
466 Bezant Resources plc BZT wb_incandescent $4.7 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
467 Minoan Group plc MIN wb_incandescent $4.7 M United Kingdom UK Consumer Discretionary UK Travel Services
468 Byotrol plc BYOT wb_incandescent $4.5 M

(Jan. 1, 2024)

 United Kingdom UK Consumer Staples UK Household & Personal Products
469 Thor Mining plc THR wb_incandescent $4.4 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
470 Rosslyn Data Technologies plc RDT wb_incandescent $4.4 M United Kingdom UK Technology UK Software—Application
471 Evgen Pharma plc EVG wb_incandescent $4.3 M United Kingdom UK Healthcare UK Biotechnology
472 Getech Group plc GTC wb_incandescent $4.2 M United Kingdom UK Energy UK Oil & Gas Equipment & Services
473 Anglesey Mining plc AYM wb_incandescent $4.0 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
474 Revolution Bars Group plc RBG wb_incandescent $3.9 M

(July 1, 2024)

 United Kingdom UK Consumer Discretionary UK Restaurants
475 Norman Broadbent plc NBB wb_incandescent $3.8 M United Kingdom UK Industrials UK Staffing & Employment Services
476 Sabien Technology Group plc SNT wb_incandescent $3.8 M United Kingdom UK Industrials UK Specialty Industrial Machinery
477 TomCo Energy plc TOM wb_incandescent $3.7 M United Kingdom UK Energy UK Oil & Gas Drilling
478 Braveheart Investment Group plc BRH wb_incandescent $3.7 M United Kingdom UK Financials UK Asset Management
479 Scirocco Energy plc SCIR wb_incandescent $3.7 M

(Jan. 1, 2024)

 United Kingdom UK Energy UK Oil & Gas E&P
480 Alba Mineral Resources plc ALBA wb_incandescent $3.7 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining

Top FTSE AIM All-Share Companies Ranking by Market Cap as of Jan. 1, 2025

451. GRC International Group plc

Company Profile: GRC International Group plc
Market Cap (USD): $5.8 M (Jan. 1, 2024)
Stock: GRC wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Information Technology Services

452. Hardide plc

Company Profile: Hardide plc
Market Cap (USD): $5.7 M
Stock: HDD wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Specialty Chemicals

453. Haydale Graphene Industries plc

Company Profile: Haydale Graphene Industries plc
Market Cap (USD): $5.6 M
Stock: HAYD wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Specialty Chemicals

454. Reabold Resources plc

Company Profile: Reabold Resources plc
Market Cap (USD): $5.4 M
Stock: RBD wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

455. Mercantile Ports & Logistics Limited

Company Profile: Mercantile Ports & Logistics Limited
Market Cap (USD): $5.4 M
Stock: MPL wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Marine Shipping

456. Trellus Health plc

Company Profile: Trellus Health plc
Market Cap (USD): $5.3 M
Stock: TRLS wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Health Information Services

457. Strategic Minerals plc

Company Profile: Strategic Minerals plc
Market Cap (USD): $5.3 M
Stock: SML wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

458. Aferian Plc

Company Profile: Aferian Plc
Market Cap (USD): $5.2 M
Stock: AFRN wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Broadcasting

459. Chamberlin plc

Company Profile: Chamberlin plc
Market Cap (USD): $5.1 M (Jan. 1, 2024)
Stock: CMH wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Specialty Industrial Machinery

460. Image Scan Holdings plc

Company Profile: Image Scan Holdings plc
Market Cap (USD): $5.1 M
Stock: IGE wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Security & Protection Services

461. Blue Star Capital plc

Company Profile: Blue Star Capital plc
Market Cap (USD): $5.1 M
Stock: BLU wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

462. Galantas Gold Corporation

Company Profile: Galantas Gold Corporation
Market Cap (USD): $5.0 M
Stock: GAL wb_incandescent
Country: Canada
Sector: Canadian Basic Materials
Industry: Canadian Gold

463. Serinus Energy plc

Company Profile: Serinus Energy plc
Market Cap (USD): $4.8 M
Stock: SENX wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

464. Autins Group plc

Company Profile: Autins Group plc
Market Cap (USD): $4.8 M
Stock: AUTG wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Auto Parts

465. Bowleven plc

Company Profile: Bowleven plc
Market Cap (USD): $4.8 M (July 1, 2024)
Stock: BLVN wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas Drilling

466. Bezant Resources plc

Company Profile: Bezant Resources plc
Market Cap (USD): $4.7 M
Stock: BZT wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

467. Minoan Group plc

Company Profile: Minoan Group plc
Market Cap (USD): $4.7 M
Stock: MIN wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Travel Services

468. Byotrol plc

Company Profile: Byotrol plc
Market Cap (USD): $4.5 M (Jan. 1, 2024)
Stock: BYOT wb_incandescent
Country: United Kingdom
Sector: UK Consumer Staples
Industry: UK Household & Personal Products

469. Thor Mining plc

Company Profile: Thor Mining plc
Market Cap (USD): $4.4 M
Stock: THR wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

470. Rosslyn Data Technologies plc

Company Profile: Rosslyn Data Technologies plc
Market Cap (USD): $4.4 M
Stock: RDT wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

471. Evgen Pharma plc

Company Profile: Evgen Pharma plc
Market Cap (USD): $4.3 M
Stock: EVG wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

472. Getech Group plc

Company Profile: Getech Group plc
Market Cap (USD): $4.2 M
Stock: GTC wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas Equipment & Services

473. Anglesey Mining plc

Company Profile: Anglesey Mining plc
Market Cap (USD): $4.0 M
Stock: AYM wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

474. Revolution Bars Group plc

Company Profile: Revolution Bars Group plc
Market Cap (USD): $3.9 M (July 1, 2024)
Stock: RBG wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Restaurants

475. Norman Broadbent plc

Company Profile: Norman Broadbent plc
Market Cap (USD): $3.8 M
Stock: NBB wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Staffing & Employment Services

476. Sabien Technology Group plc

Company Profile: Sabien Technology Group plc
Market Cap (USD): $3.8 M
Stock: SNT wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Specialty Industrial Machinery

477. TomCo Energy plc

Company Profile: TomCo Energy plc
Market Cap (USD): $3.7 M
Stock: TOM wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas Drilling

478. Braveheart Investment Group plc

Company Profile: Braveheart Investment Group plc
Market Cap (USD): $3.7 M
Stock: BRH wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

479. Scirocco Energy plc

Company Profile: Scirocco Energy plc
Market Cap (USD): $3.7 M (Jan. 1, 2024)
Stock: SCIR wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

480. Alba Mineral Resources plc

Company Profile: Alba Mineral Resources plc
Market Cap (USD): $3.7 M
Stock: ALBA wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

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