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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
361 ImmuPharma plc IMM wb_incandescent $15.7 M United Kingdom UK Healthcare UK Biotechnology
362 Landore Resources Limited LND wb_incandescent $15.4 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
363 Pennant International Group plc PEN wb_incandescent $15.4 M United Kingdom UK Technology UK Software—Application
364 genedrive plc GDR wb_incandescent $15.4 M United Kingdom UK Healthcare UK Diagnostics & Research
365 Inspiration Healthcare Group plc IHC wb_incandescent $14.6 M United Kingdom UK Healthcare UK Medical Devices
366 IXICO plc IXI wb_incandescent $14.5 M United Kingdom UK Healthcare UK Biotechnology
367 Union Jack Oil plc UJO wb_incandescent $14.1 M United Kingdom UK Energy UK Oil & Gas E&P
368 Pebble Beach Systems Group plc PEB wb_incandescent $14.1 M United Kingdom UK Technology UK Communication Equipment
369 RA International Group plc RAI wb_incandescent $14.1 M United Arab Emirates United Arab Emirates Industrials United Arab Emirates Engineering & Construction
370 Starcom plc STAR wb_incandescent $13.7 M United Kingdom UK Technology UK Scientific & Technical Instruments
371 Nexus Infrastructure plc NEXS wb_incandescent $13.6 M United Kingdom UK Industrials UK Engineering & Construction
372 Dianomi plc DNM wb_incandescent $13.6 M United Kingdom UK Communication Services UK Advertising Agencies
373 Emmerson plc EML wb_incandescent $13.5 M United Kingdom UK Basic Materials UK Agricultural Inputs
374 Ingenta plc ING wb_incandescent $13.3 M United Kingdom UK Technology UK Software—Application
375 Galileo Resources plc GLR wb_incandescent $13.1 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
376 Cora Gold Limited CORA wb_incandescent $13.1 M Virgin Islands (British) Virgin Islands (British) Basic Materials Virgin Islands (British) Gold
377 Longboat Energy plc LBE wb_incandescent $12.9 M United Kingdom UK Energy UK Oil & Gas E&P
378 Plexus Holdings plc POS wb_incandescent $12.9 M United Kingdom UK Energy UK Oil & Gas Equipment & Services
379 Verici Dx plc VRCI wb_incandescent $12.9 M United Kingdom UK Healthcare UK Diagnostics & Research
380 Premier African Minerals Limited PREM wb_incandescent $12.4 M Virgin Islands (British) Virgin Islands (British) Basic Materials Virgin Islands (British) Other Industrial Metals & Mining
381 One Media iP Group plc OMIP wb_incandescent $11.9 M United Kingdom UK Communication Services UK Entertainment
382 The Brighton Pier Group plc PIER wb_incandescent $11.7 M United Kingdom UK Consumer Discretionary UK Restaurants
383 LPA Group plc LPA wb_incandescent $11.7 M United Kingdom UK Industrials UK Electrical Equipment & Parts
384 Southern Energy Corp SOUC wb_incandescent $11.5 M Canada Canadian Energy Canadian Oil & Gas E&P
385 Synairgen plc SNG wb_incandescent $11.5 M United Kingdom UK Healthcare UK Biotechnology
386 Fusion Antibodies plc FAB wb_incandescent $11.2 M United Kingdom UK Healthcare UK Biotechnology
387 Tandem Group plc TND wb_incandescent $11.2 M United Kingdom UK Consumer Discretionary UK Leisure
388 MyHealthChecked plc MHC wb_incandescent $11.1 M United Kingdom UK Healthcare UK Medical Devices
389 Oriole Resources plc ORR wb_incandescent $11.0 M United Kingdom UK Basic Materials UK Gold
390 Titon Holdings plc TON wb_incandescent $10.9 M United Kingdom UK Industrials UK Building Products & Equipment

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

361. ImmuPharma plc

Company Profile: ImmuPharma plc
Market Cap (USD): $15.7 M
Stock: IMM wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

362. Landore Resources Limited

Company Profile: Landore Resources Limited
Market Cap (USD): $15.4 M
Stock: LND wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

363. Pennant International Group plc

Company Profile: Pennant International Group plc
Market Cap (USD): $15.4 M
Stock: PEN wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

364. genedrive plc

Company Profile: genedrive plc
Market Cap (USD): $15.4 M
Stock: GDR wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Diagnostics & Research

365. Inspiration Healthcare Group plc

Company Profile: Inspiration Healthcare Group plc
Market Cap (USD): $14.6 M
Stock: IHC wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Medical Devices

366. IXICO plc

Company Profile: IXICO plc
Market Cap (USD): $14.5 M
Stock: IXI wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

367. Union Jack Oil plc

Company Profile: Union Jack Oil plc
Market Cap (USD): $14.1 M
Stock: UJO wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

368. Pebble Beach Systems Group plc

Company Profile: Pebble Beach Systems Group plc
Market Cap (USD): $14.1 M
Stock: PEB wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Communication Equipment

369. RA International Group plc

Company Profile: RA International Group plc
Market Cap (USD): $14.1 M
Stock: RAI wb_incandescent
Country: United Arab Emirates
Sector: United Arab Emirates Industrials
Industry: United Arab Emirates Engineering & Construction

370. Starcom plc

Company Profile: Starcom plc
Market Cap (USD): $13.7 M
Stock: STAR wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Scientific & Technical Instruments

371. Nexus Infrastructure plc

Company Profile: Nexus Infrastructure plc
Market Cap (USD): $13.6 M
Stock: NEXS wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Engineering & Construction

372. Dianomi plc

Company Profile: Dianomi plc
Market Cap (USD): $13.6 M
Stock: DNM wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Advertising Agencies

373. Emmerson plc

Company Profile: Emmerson plc
Market Cap (USD): $13.5 M
Stock: EML wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Agricultural Inputs

374. Ingenta plc

Company Profile: Ingenta plc
Market Cap (USD): $13.3 M
Stock: ING wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

375. Galileo Resources plc

Company Profile: Galileo Resources plc
Market Cap (USD): $13.1 M
Stock: GLR wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

376. Cora Gold Limited

Company Profile: Cora Gold Limited
Market Cap (USD): $13.1 M
Stock: CORA wb_incandescent
Country: Virgin Islands (British)
Sector: Virgin Islands (British) Basic Materials
Industry: Virgin Islands (British) Gold

377. Longboat Energy plc

Company Profile: Longboat Energy plc
Market Cap (USD): $12.9 M
Stock: LBE wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

378. Plexus Holdings plc

Company Profile: Plexus Holdings plc
Market Cap (USD): $12.9 M
Stock: POS wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas Equipment & Services

379. Verici Dx plc

Company Profile: Verici Dx plc
Market Cap (USD): $12.9 M
Stock: VRCI wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Diagnostics & Research

380. Premier African Minerals Limited

Company Profile: Premier African Minerals Limited
Market Cap (USD): $12.4 M
Stock: PREM wb_incandescent
Country: Virgin Islands (British)
Sector: Virgin Islands (British) Basic Materials
Industry: Virgin Islands (British) Other Industrial Metals & Mining

381. One Media iP Group plc

Company Profile: One Media iP Group plc
Market Cap (USD): $11.9 M
Stock: OMIP wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Entertainment

382. The Brighton Pier Group plc

Company Profile: The Brighton Pier Group plc
Market Cap (USD): $11.7 M
Stock: PIER wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Restaurants

383. LPA Group plc

Company Profile: LPA Group plc
Market Cap (USD): $11.7 M
Stock: LPA wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Electrical Equipment & Parts

384. Southern Energy Corp

Company Profile: Southern Energy Corp
Market Cap (USD): $11.5 M
Stock: SOUC wb_incandescent
Country: Canada
Sector: Canadian Energy
Industry: Canadian Oil & Gas E&P

385. Synairgen plc

Company Profile: Synairgen plc
Market Cap (USD): $11.5 M
Stock: SNG wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

386. Fusion Antibodies plc

Company Profile: Fusion Antibodies plc
Market Cap (USD): $11.2 M
Stock: FAB wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

387. Tandem Group plc

Company Profile: Tandem Group plc
Market Cap (USD): $11.2 M
Stock: TND wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Leisure

388. MyHealthChecked plc

Company Profile: MyHealthChecked plc
Market Cap (USD): $11.1 M
Stock: MHC wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Medical Devices

389. Oriole Resources plc

Company Profile: Oriole Resources plc
Market Cap (USD): $11.0 M
Stock: ORR wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Gold

390. Titon Holdings plc

Company Profile: Titon Holdings plc
Market Cap (USD): $10.9 M
Stock: TON wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Building Products & Equipment

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