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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
331 The Parkmead Group plc PMG wb_incandescent $22.5 M United Kingdom UK Energy UK Oil & Gas E&P
332 Kazera Global plc KZG wb_incandescent $22.0 M United Kingdom UK Financials UK Asset Management
333 Safestay plc SSTY wb_incandescent $21.9 M United Kingdom UK Consumer Discretionary UK Lodging
334 eEnergy Group plc EAAS wb_incandescent $21.8 M United Kingdom UK Industrials UK Electrical Equipment & Parts
335 ZOO Digital Group plc ZOO wb_incandescent $21.7 M United Kingdom UK Technology UK Software—Application
336 Velocity Composites plc VEL wb_incandescent $21.6 M United Kingdom UK Industrials UK Aerospace & Defense
337 SIMEC Atlantis Energy Limited SAE wb_incandescent $21.4 M United Kingdom UK Utilities UK Utilities—Independent Power Producers
338 CAP-XX Limited CPX wb_incandescent $21.0 M Australia Australian Technology Australian Electronic Components
339 Lexington Gold Ltd LEX wb_incandescent $21.0 M Bermuda Bermuda Basic Materials Bermuda Gold
340 Power Metal Resources plc POW wb_incandescent $20.7 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
341 Arc Minerals Limited ARCM wb_incandescent $20.4 M Virgin Islands (British) Virgin Islands (British) Basic Materials Virgin Islands (British) Other Industrial Metals & Mining
342 Nexus Infrastructure plc NEXS wb_incandescent $20.0 M United Kingdom UK Industrials UK Engineering & Construction
343 Sound Energy plc SOU wb_incandescent $19.3 M United Kingdom UK Energy UK Oil & Gas E&P
344 GCM Resources plc GCM wb_incandescent $19.2 M United Kingdom UK Energy UK Thermal Coal
345 Vector Capital plc VCAP wb_incandescent $19.0 M

(Jan. 1, 2024)

 United Kingdom UK Financials UK Credit Services
346 Frontier IP Group plc FIPP wb_incandescent $18.9 M United Kingdom UK Financials UK Asset Management
347 REACT Group plc REAT wb_incandescent $18.8 M United Kingdom UK Industrials UK Specialty Business Services
348 Cambridge Cognition Holdings plc COG wb_incandescent $18.7 M United Kingdom UK Healthcare UK Health Information Services
349 Driver Group plc DRV wb_incandescent $18.6 M

(Jan. 1, 2024)

 United Kingdom UK Industrials UK Consulting Services
350 Directa Plus plc DCTA wb_incandescent $18.3 M Italy Italian Basic Materials Italian Specialty Chemicals
351 Abingdon Health plc ABDX wb_incandescent $18.2 M United Kingdom UK Healthcare UK Diagnostics & Research
352 Pressure Technologies plc PRES wb_incandescent $18.1 M United Kingdom UK Energy UK Oil & Gas Equipment & Services
353 Oncimmune Holdings plc ONC wb_incandescent $17.8 M

(Jan. 1, 2025)

 United Kingdom UK Healthcare UK Biotechnology
354 Capital Metals plc CMET wb_incandescent $17.7 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
355 Empresaria Group plc EMR wb_incandescent $17.7 M United Kingdom UK Industrials UK Staffing & Employment Services
356 Vast Resources plc VAST wb_incandescent $17.4 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
357 Orchard Funding Group plc ORCH wb_incandescent $17.2 M United Kingdom UK Financials UK Credit Services
358 Pennant International Group plc PEN wb_incandescent $16.9 M United Kingdom UK Technology UK Software—Application
359 Brand Architekts Group plc BAR wb_incandescent $16.5 M

(Jan. 1, 2025)

 United Kingdom UK Consumer Staples UK Household & Personal Products
360 Westminster Group plc WSG wb_incandescent $16.4 M United Kingdom UK Industrials UK Security & Protection Services

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

331. The Parkmead Group plc

Company Profile: The Parkmead Group plc
Market Cap (USD): $22.5 M
Stock: PMG wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

332. Kazera Global plc

Company Profile: Kazera Global plc
Market Cap (USD): $22.0 M
Stock: KZG wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

333. Safestay plc

Company Profile: Safestay plc
Market Cap (USD): $21.9 M
Stock: SSTY wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Lodging

334. eEnergy Group plc

Company Profile: eEnergy Group plc
Market Cap (USD): $21.8 M
Stock: EAAS wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Electrical Equipment & Parts

335. ZOO Digital Group plc

Company Profile: ZOO Digital Group plc
Market Cap (USD): $21.7 M
Stock: ZOO wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

336. Velocity Composites plc

Company Profile: Velocity Composites plc
Market Cap (USD): $21.6 M
Stock: VEL wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Aerospace & Defense

337. SIMEC Atlantis Energy Limited

Company Profile: SIMEC Atlantis Energy Limited
Market Cap (USD): $21.4 M
Stock: SAE wb_incandescent
Country: United Kingdom
Sector: UK Utilities
Industry: UK Utilities—Independent Power Producers

338. CAP-XX Limited

Company Profile: CAP-XX Limited
Market Cap (USD): $21.0 M
Stock: CPX wb_incandescent
Country: Australia
Sector: Australian Technology
Industry: Australian Electronic Components

339. Lexington Gold Ltd

Company Profile: Lexington Gold Ltd
Market Cap (USD): $21.0 M
Stock: LEX wb_incandescent
Country: Bermuda
Sector: Bermuda Basic Materials
Industry: Bermuda Gold

340. Power Metal Resources plc

Company Profile: Power Metal Resources plc
Market Cap (USD): $20.7 M
Stock: POW wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

341. Arc Minerals Limited

Company Profile: Arc Minerals Limited
Market Cap (USD): $20.4 M
Stock: ARCM wb_incandescent
Country: Virgin Islands (British)
Sector: Virgin Islands (British) Basic Materials
Industry: Virgin Islands (British) Other Industrial Metals & Mining

342. Nexus Infrastructure plc

Company Profile: Nexus Infrastructure plc
Market Cap (USD): $20.0 M
Stock: NEXS wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Engineering & Construction

343. Sound Energy plc

Company Profile: Sound Energy plc
Market Cap (USD): $19.3 M
Stock: SOU wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

344. GCM Resources plc

Company Profile: GCM Resources plc
Market Cap (USD): $19.2 M
Stock: GCM wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Thermal Coal

345. Vector Capital plc

Company Profile: Vector Capital plc
Market Cap (USD): $19.0 M (Jan. 1, 2024)
Stock: VCAP wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Credit Services

346. Frontier IP Group plc

Company Profile: Frontier IP Group plc
Market Cap (USD): $18.9 M
Stock: FIPP wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

347. REACT Group plc

Company Profile: REACT Group plc
Market Cap (USD): $18.8 M
Stock: REAT wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Specialty Business Services

348. Cambridge Cognition Holdings plc

Company Profile: Cambridge Cognition Holdings plc
Market Cap (USD): $18.7 M
Stock: COG wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Health Information Services

349. Driver Group plc

Company Profile: Driver Group plc
Market Cap (USD): $18.6 M (Jan. 1, 2024)
Stock: DRV wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Consulting Services

350. Directa Plus plc

Company Profile: Directa Plus plc
Market Cap (USD): $18.3 M
Stock: DCTA wb_incandescent
Country: Italy
Sector: Italian Basic Materials
Industry: Italian Specialty Chemicals

351. Abingdon Health plc

Company Profile: Abingdon Health plc
Market Cap (USD): $18.2 M
Stock: ABDX wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Diagnostics & Research

352. Pressure Technologies plc

Company Profile: Pressure Technologies plc
Market Cap (USD): $18.1 M
Stock: PRES wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas Equipment & Services

353. Oncimmune Holdings plc

Company Profile: Oncimmune Holdings plc
Market Cap (USD): $17.8 M (Jan. 1, 2025)
Stock: ONC wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

354. Capital Metals plc

Company Profile: Capital Metals plc
Market Cap (USD): $17.7 M
Stock: CMET wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

355. Empresaria Group plc

Company Profile: Empresaria Group plc
Market Cap (USD): $17.7 M
Stock: EMR wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Staffing & Employment Services

356. Vast Resources plc

Company Profile: Vast Resources plc
Market Cap (USD): $17.4 M
Stock: VAST wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

357. Orchard Funding Group plc

Company Profile: Orchard Funding Group plc
Market Cap (USD): $17.2 M
Stock: ORCH wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Credit Services

358. Pennant International Group plc

Company Profile: Pennant International Group plc
Market Cap (USD): $16.9 M
Stock: PEN wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

359. Brand Architekts Group plc

Company Profile: Brand Architekts Group plc
Market Cap (USD): $16.5 M (Jan. 1, 2025)
Stock: BAR wb_incandescent
Country: United Kingdom
Sector: UK Consumer Staples
Industry: UK Household & Personal Products

360. Westminster Group plc

Company Profile: Westminster Group plc
Market Cap (USD): $16.4 M
Stock: WSG wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Security & Protection Services

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