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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
361 RTC Group plc RTC wb_incandescent $16.4 M United Kingdom UK Industrials UK Staffing & Employment Services
362 B90 Holdings plc B90 wb_incandescent $16.4 M United Kingdom UK Consumer Discretionary UK Gambling
363 Arcontech Group plc ARC wb_incandescent $16.2 M United Kingdom UK Technology UK Software—Application
364 OptiBiotix Health plc OPTI wb_incandescent $16.0 M United Kingdom UK Healthcare UK Biotechnology
365 Croma Security Solutions Group plc CSSG wb_incandescent $15.9 M United Kingdom UK Industrials UK Security & Protection Services
366 Northern Bear plc NTBR wb_incandescent $15.8 M United Kingdom UK Industrials UK Building Products & Equipment
367 Surface Transforms plc SCE wb_incandescent $15.7 M United Kingdom UK Consumer Discretionary UK Auto Parts
368 Tandem Group plc TND wb_incandescent $15.6 M United Kingdom UK Consumer Discretionary UK Leisure
369 Plexus Holdings plc POS wb_incandescent $15.4 M United Kingdom UK Energy UK Oil & Gas Equipment & Services
370 Pebble Beach Systems Group plc PEB wb_incandescent $15.4 M United Kingdom UK Technology UK Communication Equipment
371 Shearwater Group plc SWG wb_incandescent $15.4 M United Kingdom UK Technology UK Software—Infrastructure
372 Southern Energy Corp SOUC wb_incandescent $14.8 M Canada Canadian Energy Canadian Oil & Gas E&P
373 Goldplat plc GDP wb_incandescent $14.7 M United Kingdom UK Basic Materials UK Gold
374 AIREA plc AIEA wb_incandescent $14.6 M United Kingdom UK Consumer Discretionary UK Textile Manufacturing
375 Phoenix Copper Limited PXC wb_incandescent $14.3 M Virgin Islands (British) Virgin Islands (British) Basic Materials Virgin Islands (British) Copper
376 RA International Group plc RAI wb_incandescent $14.1 M

(Jan. 1, 2025)

 United Arab Emirates United Arab Emirates Industrials United Arab Emirates Engineering & Construction
377 Longboat Energy plc LBE wb_incandescent $14.1 M United Kingdom UK Energy UK Oil & Gas E&P
378 Celsius Resources Limited CLA wb_incandescent $14.0 M Australia Australian Basic Materials Australian Other Industrial Metals & Mining
379 Starcom plc STAR wb_incandescent $14.0 M United Kingdom UK Technology UK Scientific & Technical Instruments
380 Titon Holdings plc TON wb_incandescent $13.9 M United Kingdom UK Industrials UK Building Products & Equipment
381 Union Jack Oil plc UJO wb_incandescent $13.9 M United Kingdom UK Energy UK Oil & Gas E&P
382 CPPGroup plc CPP wb_incandescent $13.7 M United Kingdom UK Industrials UK Specialty Business Services
383 Galileo Resources plc GLR wb_incandescent $13.6 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
384 Ingenta plc ING wb_incandescent $13.4 M United Kingdom UK Technology UK Software—Application
385 One Media iP Group plc OMIP wb_incandescent $13.3 M United Kingdom UK Communication Services UK Entertainment
386 Bigblu Broadband plc BBB wb_incandescent $13.2 M United Kingdom UK Communication Services UK Telecom Services
387 Tower Resources plc TRP wb_incandescent $12.9 M United Kingdom UK Energy UK Oil & Gas E&P
388 Wishbone Gold plc WSBN wb_incandescent $12.8 M Gibraltar Gibraltar Basic Materials Gibraltar Gold
389 Landore Resources Limited LND wb_incandescent $12.4 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
390 ImmuPharma plc IMM wb_incandescent $12.4 M United Kingdom UK Healthcare UK Biotechnology

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

361. RTC Group plc

Company Profile: RTC Group plc
Market Cap (USD): $16.4 M
Stock: RTC wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Staffing & Employment Services

362. B90 Holdings plc

Company Profile: B90 Holdings plc
Market Cap (USD): $16.4 M
Stock: B90 wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Gambling

363. Arcontech Group plc

Company Profile: Arcontech Group plc
Market Cap (USD): $16.2 M
Stock: ARC wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

364. OptiBiotix Health plc

Company Profile: OptiBiotix Health plc
Market Cap (USD): $16.0 M
Stock: OPTI wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

365. Croma Security Solutions Group plc

Company Profile: Croma Security Solutions Group plc
Market Cap (USD): $15.9 M
Stock: CSSG wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Security & Protection Services

366. Northern Bear plc

Company Profile: Northern Bear plc
Market Cap (USD): $15.8 M
Stock: NTBR wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Building Products & Equipment

367. Surface Transforms plc

Company Profile: Surface Transforms plc
Market Cap (USD): $15.7 M
Stock: SCE wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Auto Parts

368. Tandem Group plc

Company Profile: Tandem Group plc
Market Cap (USD): $15.6 M
Stock: TND wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Leisure

369. Plexus Holdings plc

Company Profile: Plexus Holdings plc
Market Cap (USD): $15.4 M
Stock: POS wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas Equipment & Services

370. Pebble Beach Systems Group plc

Company Profile: Pebble Beach Systems Group plc
Market Cap (USD): $15.4 M
Stock: PEB wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Communication Equipment

371. Shearwater Group plc

Company Profile: Shearwater Group plc
Market Cap (USD): $15.4 M
Stock: SWG wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Infrastructure

372. Southern Energy Corp

Company Profile: Southern Energy Corp
Market Cap (USD): $14.8 M
Stock: SOUC wb_incandescent
Country: Canada
Sector: Canadian Energy
Industry: Canadian Oil & Gas E&P

373. Goldplat plc

Company Profile: Goldplat plc
Market Cap (USD): $14.7 M
Stock: GDP wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Gold

374. AIREA plc

Company Profile: AIREA plc
Market Cap (USD): $14.6 M
Stock: AIEA wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Textile Manufacturing

375. Phoenix Copper Limited

Company Profile: Phoenix Copper Limited
Market Cap (USD): $14.3 M
Stock: PXC wb_incandescent
Country: Virgin Islands (British)
Sector: Virgin Islands (British) Basic Materials
Industry: Virgin Islands (British) Copper

376. RA International Group plc

Company Profile: RA International Group plc
Market Cap (USD): $14.1 M (Jan. 1, 2025)
Stock: RAI wb_incandescent
Country: United Arab Emirates
Sector: United Arab Emirates Industrials
Industry: United Arab Emirates Engineering & Construction

377. Longboat Energy plc

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

378. Celsius Resources Limited

Company Profile: Celsius Resources Limited
Market Cap (USD): $14.0 M
Stock: CLA wb_incandescent
Country: Australia
Sector: Australian Basic Materials
Industry: Australian Other Industrial Metals & Mining

379. Starcom plc

Company Profile: Starcom plc
Market Cap (USD): $14.0 M
Stock: STAR wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Scientific & Technical Instruments

380. Titon Holdings plc

Company Profile: Titon Holdings plc
Market Cap (USD): $13.9 M
Stock: TON wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Building Products & Equipment

381. Union Jack Oil plc

Company Profile: Union Jack Oil plc
Market Cap (USD): $13.9 M
Stock: UJO wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

382. CPPGroup plc

Company Profile: CPPGroup plc
Market Cap (USD): $13.7 M
Stock: CPP wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Specialty Business Services

383. Galileo Resources plc

Company Profile: Galileo Resources plc
Market Cap (USD): $13.6 M
Stock: GLR wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

384. Ingenta plc

Company Profile: Ingenta plc
Market Cap (USD): $13.4 M
Stock: ING wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

385. One Media iP Group plc

Company Profile: One Media iP Group plc
Market Cap (USD): $13.3 M
Stock: OMIP wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Entertainment

386. Bigblu Broadband plc

Company Profile: Bigblu Broadband plc
Market Cap (USD): $13.2 M
Stock: BBB wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Telecom Services

387. Tower Resources plc

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

388. Wishbone Gold plc

Company Profile: Wishbone Gold plc
Market Cap (USD): $12.8 M
Stock: WSBN wb_incandescent
Country: Gibraltar
Sector: Gibraltar Basic Materials
Industry: Gibraltar Gold

389. Landore Resources Limited

Company Profile: Landore Resources Limited
Market Cap (USD): $12.4 M
Stock: LND wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

390. ImmuPharma plc

Company Profile: ImmuPharma plc
Market Cap (USD): $12.4 M
Stock: IMM wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

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