^FTAI

FTSE AIM All-Share
Components

Top FTSE AIM All-Share Companies by Market Cap and Stocks in 2026

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 Jan. 1, 2026

Download Excel

Ranking Company Stock Market Cap (USD) Country Sector Industry
301 Haydale Graphene Industries plc HAYD $30.1 M United Kingdom UK Basic Materials UK Specialty Chemicals
302 GCM Resources plc GCM $29.0 M United Kingdom UK Energy UK Thermal Coal
303 Surface Transforms plc SCE $28.9 M United Kingdom UK Consumer Discretionary UK Auto Parts
304 Sound Energy plc SOU $28.7 M United Kingdom UK Energy UK Oil & Gas E&P
305 Europa Oil & Gas (Holdings) plc EOG $28.4 M United Kingdom UK Energy UK Oil & Gas E&P
306 Transense Technologies plc TRT $28.2 M United Kingdom UK Consumer Discretionary UK Auto Parts
307 Vianet Group plc VNET $28.0 M United Kingdom UK Industrials UK Specialty Business Services
308 Provexis plc PXS $27.9 M United Kingdom UK Healthcare UK Drug Manufacturers—Specialty & Generic
309 Symphony Environmental Technologies plc SYM $27.8 M United Kingdom UK Consumer Discretionary UK Packaging & Containers
310 TPXimpact Holdings PLC TPX $27.4 M United Kingdom UK Technology UK Information Technology Services
311 Petro Matad Limited MATD $27.2 M United Kingdom UK Energy UK Oil & Gas E&P
312 Various Eateries plc VARE $27.1 M United Kingdom UK Consumer Discretionary UK Restaurants
313 Robinson plc RBN $27.1 M United Kingdom UK Consumer Discretionary UK Packaging & Containers
314 The Conygar Investment Company plc CIC $26.9 M United Kingdom UK Real Estate UK Real Estate—Diversified
315 iomart Group plc IOM $26.7 M United Kingdom UK Technology UK Software—Infrastructure
316 PowerHouse Energy Group plc PHE $26.5 M United Kingdom UK Utilities UK Utilities—Renewable
317 Celsius Resources Limited CLA $25.9 M Australia Australian Basic Materials Australian Other Industrial Metals & Mining
318 Bezant Resources plc BZT $25.8 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
319 Smartspace Software plc SMRT $25.8 M

(Jan. 1, 2024)

 United Kingdom UK Technology UK Software—Application
320 B90 Holdings plc B90 $25.2 M United Kingdom UK Consumer Discretionary UK Gambling
321 Northern Bear plc NTBR $25.2 M United Kingdom UK Industrials UK Building Products & Equipment
322 Sosandar plc SOS $24.8 M United Kingdom UK Consumer Discretionary UK Internet Retail
323 Tavistock Investments plc TAVI $24.6 M United Kingdom UK Financials UK Capital Markets
324 Tekmar Group plc TGP $24.4 M United Kingdom UK Industrials UK Engineering & Construction
325 Trinity Exploration & Production plc TRIN $24.1 M

(July 1, 2024)

 United Kingdom UK Energy UK Oil & Gas E&P
326 Ebiquity plc EBQ $23.9 M United Kingdom UK Communication Services UK Advertising Agencies
327 Lexington Gold Ltd LEX $23.4 M Bermuda Bermuda Basic Materials Bermuda Gold
328 Polarean Imaging plc POLX $23.2 M

(July 1, 2025)

 United States US Healthcare US Medical Devices
329 NAHL Group plc NAH $23.2 M United Kingdom UK Communication Services UK Advertising Agencies
330 eEnergy Group plc EAAS $23.2 M United Kingdom UK Industrials UK Electrical Equipment & Parts

Top FTSE AIM All-Share Companies Ranking by Market Cap as of Jan. 1, 2026

301. Haydale Graphene Industries plc

Company Profile: Haydale Graphene Industries plc
Market Cap (USD): $30.1 M
Stock: HAYD wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Specialty Chemicals

302. GCM Resources plc

Company Profile: GCM Resources plc
Market Cap (USD): $29.0 M
Stock: GCM wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Thermal Coal

303. Surface Transforms plc

Company Profile: Surface Transforms plc
Market Cap (USD): $28.9 M
Stock: SCE wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Auto Parts

304. Sound Energy plc

Company Profile: Sound Energy plc
Market Cap (USD): $28.7 M
Stock: SOU wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

305. Europa Oil & Gas (Holdings) plc

Company Profile: Europa Oil & Gas (Holdings) plc
Market Cap (USD): $28.4 M
Stock: EOG wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

306. Transense Technologies plc

Company Profile: Transense Technologies plc
Market Cap (USD): $28.2 M
Stock: TRT wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Auto Parts

307. Vianet Group plc

Company Profile: Vianet Group plc
Market Cap (USD): $28.0 M
Stock: VNET wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Specialty Business Services

308. Provexis plc

Company Profile: Provexis plc
Market Cap (USD): $27.9 M
Stock: PXS wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Drug Manufacturers—Specialty & Generic

309. Symphony Environmental Technologies plc

Company Profile: Symphony Environmental Technologies plc
Market Cap (USD): $27.8 M
Stock: SYM wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Packaging & Containers

310. TPXimpact Holdings PLC

Company Profile: TPXimpact Holdings PLC
Market Cap (USD): $27.4 M
Stock: TPX wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Information Technology Services

311. Petro Matad Limited

Company Profile: Petro Matad Limited
Market Cap (USD): $27.2 M
Stock: MATD wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

312. Various Eateries plc

Company Profile: Various Eateries plc
Market Cap (USD): $27.1 M
Stock: VARE wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Restaurants

313. Robinson plc

Company Profile: Robinson plc
Market Cap (USD): $27.1 M
Stock: RBN wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Packaging & Containers

314. The Conygar Investment Company plc

Company Profile: The Conygar Investment Company plc
Market Cap (USD): $26.9 M
Stock: CIC wb_incandescent
Country: United Kingdom
Sector: UK Real Estate
Industry: UK Real Estate—Diversified

315. iomart Group plc

Company Profile: iomart Group plc
Market Cap (USD): $26.7 M
Stock: IOM wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Infrastructure

316. PowerHouse Energy Group plc

Company Profile: PowerHouse Energy Group plc
Market Cap (USD): $26.5 M
Stock: PHE wb_incandescent
Country: United Kingdom
Sector: UK Utilities
Industry: UK Utilities—Renewable

317. Celsius Resources Limited

Company Profile: Celsius Resources Limited
Market Cap (USD): $25.9 M
Stock: CLA wb_incandescent
Country: Australia
Sector: Australian Basic Materials
Industry: Australian Other Industrial Metals & Mining

318. Bezant Resources plc

Company Profile: Bezant Resources plc
Market Cap (USD): $25.8 M
Stock: BZT wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

319. Smartspace Software plc

Company Profile: Smartspace Software plc
Market Cap (USD): $25.8 M (Jan. 1, 2024)
Stock: SMRT wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

320. B90 Holdings plc

Company Profile: B90 Holdings plc
Market Cap (USD): $25.2 M
Stock: B90 wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Gambling

321. Northern Bear plc

Company Profile: Northern Bear plc
Market Cap (USD): $25.2 M
Stock: NTBR wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Building Products & Equipment

322. Sosandar plc

Company Profile: Sosandar plc
Market Cap (USD): $24.8 M
Stock: SOS wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Internet Retail

323. Tavistock Investments plc

Company Profile: Tavistock Investments plc
Market Cap (USD): $24.6 M
Stock: TAVI wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

324. Tekmar Group plc

Company Profile: Tekmar Group plc
Market Cap (USD): $24.4 M
Stock: TGP wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Engineering & Construction

325. Trinity Exploration & Production plc

Company Profile: Trinity Exploration & Production plc
Market Cap (USD): $24.1 M (July 1, 2024)
Stock: TRIN wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

326. Ebiquity plc

Company Profile: Ebiquity plc
Market Cap (USD): $23.9 M
Stock: EBQ wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Advertising Agencies

327. Lexington Gold Ltd

Company Profile: Lexington Gold Ltd
Market Cap (USD): $23.4 M
Stock: LEX wb_incandescent
Country: Bermuda
Sector: Bermuda Basic Materials
Industry: Bermuda Gold

328. Polarean Imaging plc

Company Profile: Polarean Imaging plc
Market Cap (USD): $23.2 M (July 1, 2025)
Stock: POLX wb_incandescent
Country: United States
Sector: US Healthcare
Industry: US Medical Devices

329. NAHL Group plc

Company Profile: NAHL Group plc
Market Cap (USD): $23.2 M
Stock: NAH wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Advertising Agencies

330. eEnergy Group plc

Company Profile: eEnergy Group plc
Market Cap (USD): $23.2 M
Stock: EAAS wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Electrical Equipment & Parts

Stay in touch