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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.

FTSE AIM All-Share Chart & Analysis

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

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Ranking Company Stock Market Cap (USD) Country Sector Industry
481 Norman Broadbent plc NBB wb_incandescent $3.7 M United Kingdom UK Industrials UK Staffing & Employment Services
482 Scirocco Energy plc SCIR wb_incandescent $3.7 M

(Jan. 1, 2024)

 United Kingdom UK Energy UK Oil & Gas E&P
483 Ascent Resources plc AST wb_incandescent $3.7 M United Kingdom UK Energy UK Oil & Gas E&P
484 Clontarf Energy plc CLON wb_incandescent $3.7 M Ireland Irish Energy Irish Oil & Gas E&P
485 URU Metals Limited URU wb_incandescent $3.6 M Canada Canadian Basic Materials Canadian Other Industrial Metals & Mining
486 Conroy Gold and Natural Resources plc CGNR wb_incandescent $3.4 M Ireland Irish Basic Materials Irish Gold
487 SpaceandPeople plc SAL wb_incandescent $3.1 M United Kingdom UK Communication Services UK Advertising Agencies
488 Marechale Capital plc MAC wb_incandescent $3.1 M United Kingdom UK Financials UK Capital Markets
489 ValiRx plc VAL wb_incandescent $3.1 M United Kingdom UK Healthcare UK Biotechnology
490 Thruvision Group plc THRU wb_incandescent $3.0 M United Kingdom UK Industrials UK Security & Protection Services
491 CloudCoCo Group plc CLCO wb_incandescent $2.9 M United Kingdom UK Technology UK Software—Infrastructure
492 Petrel Resources plc PET wb_incandescent $2.8 M Ireland Irish Energy Irish Oil & Gas E&P
493 Riverfort Global Opportunities plc RGO wb_incandescent $2.8 M United Kingdom UK Financials UK Asset Management
494 Red Rock Resources plc RRR wb_incandescent $2.7 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
495 Oracle Power plc ORCP wb_incandescent $2.7 M United Kingdom UK Energy UK Thermal Coal
496 Sabien Technology Group plc SNT wb_incandescent $2.7 M United Kingdom UK Industrials UK Specialty Industrial Machinery
497 Image Scan Holdings plc IGE wb_incandescent $2.5 M United Kingdom UK Industrials UK Security & Protection Services
498 Dillistone Group plc DSG wb_incandescent $2.5 M United Kingdom UK Technology UK Software—Application
499 Braveheart Investment Group plc BRH wb_incandescent $2.5 M United Kingdom UK Financials UK Asset Management
500 Great Western Mining Corporation plc GWMO wb_incandescent $2.4 M Ireland Irish Basic Materials Irish Other Industrial Metals & Mining
501 Biome Technologies plc BIOM wb_incandescent $2.2 M

(Jan. 1, 2025)

 United Kingdom UK Technology UK Electronic Components
502 Tertiary Minerals plc TYM wb_incandescent $2.2 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
503 PHSC plc PHSC wb_incandescent $2.1 M United Kingdom UK Industrials UK Conglomerates
504 TomCo Energy plc TOM wb_incandescent $2.0 M United Kingdom UK Energy UK Oil & Gas Drilling
505 Argo Group Limited ARGO wb_incandescent $2.0 M

(Jan. 1, 2025)

 Cyprus Cyprus Financials Cyprus Asset Management
506 Deltex Medical Group plc DEMG wb_incandescent $1.9 M

(Jan. 1, 2025)

 United Kingdom UK Healthcare UK Medical Devices
507 Jaywing plc JWNG wb_incandescent $1.9 M

(Jan. 1, 2025)

 United Kingdom UK Communication Services UK Advertising Agencies
508 MediaZest plc MDZ wb_incandescent $1.9 M United Kingdom UK Communication Services UK Advertising Agencies
509 Gunsynd plc GUN wb_incandescent $1.9 M United Kingdom UK Energy UK Oil & Gas E&P
510 Keras Resources plc KRS wb_incandescent $1.8 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining

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

481. Norman Broadbent plc

Company Profile: Norman Broadbent plc
Market Cap (USD): $3.7 M
Stock: NBB wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Staffing & Employment Services

482. 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

483. Ascent Resources plc

Company Profile: Ascent Resources plc
Market Cap (USD): $3.7 M
Stock: AST wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

484. Clontarf Energy plc

Company Profile: Clontarf Energy plc
Market Cap (USD): $3.7 M
Stock: CLON wb_incandescent
Country: Ireland
Sector: Irish Energy
Industry: Irish Oil & Gas E&P

485. URU Metals Limited

Company Profile: URU Metals Limited
Market Cap (USD): $3.6 M
Stock: URU wb_incandescent
Country: Canada
Sector: Canadian Basic Materials
Industry: Canadian Other Industrial Metals & Mining

486. Conroy Gold and Natural Resources plc

Company Profile: Conroy Gold and Natural Resources plc
Market Cap (USD): $3.4 M
Stock: CGNR wb_incandescent
Country: Ireland
Sector: Irish Basic Materials
Industry: Irish Gold

487. SpaceandPeople plc

Company Profile: SpaceandPeople plc
Market Cap (USD): $3.1 M
Stock: SAL wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Advertising Agencies

488. Marechale Capital plc

Company Profile: Marechale Capital plc
Market Cap (USD): $3.1 M
Stock: MAC wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

489. ValiRx plc

Company Profile: ValiRx plc
Market Cap (USD): $3.1 M
Stock: VAL wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

490. Thruvision Group plc

Company Profile: Thruvision Group plc
Market Cap (USD): $3.0 M
Stock: THRU wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Security & Protection Services

491. CloudCoCo Group plc

Company Profile: CloudCoCo Group plc
Market Cap (USD): $2.9 M
Stock: CLCO wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Infrastructure

492. Petrel Resources plc

Company Profile: Petrel Resources plc
Market Cap (USD): $2.8 M
Stock: PET wb_incandescent
Country: Ireland
Sector: Irish Energy
Industry: Irish Oil & Gas E&P

493. Riverfort Global Opportunities plc

Company Profile: Riverfort Global Opportunities plc
Market Cap (USD): $2.8 M
Stock: RGO wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

494. Red Rock Resources plc

Company Profile: Red Rock Resources plc
Market Cap (USD): $2.7 M
Stock: RRR wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

495. Oracle Power plc

Company Profile: Oracle Power plc
Market Cap (USD): $2.7 M
Stock: ORCP wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Thermal Coal

496. Sabien Technology Group plc

Company Profile: Sabien Technology Group plc
Market Cap (USD): $2.7 M
Stock: SNT wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Specialty Industrial Machinery

497. Image Scan Holdings plc

Company Profile: Image Scan Holdings plc
Market Cap (USD): $2.5 M
Stock: IGE wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Security & Protection Services

498. Dillistone Group plc

Company Profile: Dillistone Group plc
Market Cap (USD): $2.5 M
Stock: DSG wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

499. Braveheart Investment Group plc

Company Profile: Braveheart Investment Group plc
Market Cap (USD): $2.5 M
Stock: BRH wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

500. Great Western Mining Corporation plc

Company Profile: Great Western Mining Corporation plc
Market Cap (USD): $2.4 M
Stock: GWMO wb_incandescent
Country: Ireland
Sector: Irish Basic Materials
Industry: Irish Other Industrial Metals & Mining

501. Biome Technologies plc

Company Profile: Biome Technologies plc
Market Cap (USD): $2.2 M (Jan. 1, 2025)
Stock: BIOM wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Electronic Components

502. Tertiary Minerals plc

Company Profile: Tertiary Minerals plc
Market Cap (USD): $2.2 M
Stock: TYM wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

503. PHSC plc

Company Profile: PHSC plc
Market Cap (USD): $2.1 M
Stock: PHSC wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Conglomerates

504. TomCo Energy plc

Company Profile: TomCo Energy plc
Market Cap (USD): $2.0 M
Stock: TOM wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas Drilling

505. Argo Group Limited

Company Profile: Argo Group Limited
Market Cap (USD): $2.0 M (Jan. 1, 2025)
Stock: ARGO wb_incandescent
Country: Cyprus
Sector: Cyprus Financials
Industry: Cyprus Asset Management

506. Deltex Medical Group plc

Company Profile: Deltex Medical Group plc
Market Cap (USD): $1.9 M (Jan. 1, 2025)
Stock: DEMG wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Medical Devices

507. Jaywing plc

Company Profile: Jaywing plc
Market Cap (USD): $1.9 M (Jan. 1, 2025)
Stock: JWNG wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Advertising Agencies

508. MediaZest plc

Company Profile: MediaZest plc
Market Cap (USD): $1.9 M
Stock: MDZ wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Advertising Agencies

509. Gunsynd plc

Company Profile: Gunsynd plc
Market Cap (USD): $1.9 M
Stock: GUN wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

510. Keras Resources plc

Company Profile: Keras Resources plc
Market Cap (USD): $1.8 M
Stock: KRS wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

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