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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
211 Zephyr Energy plc ZPHR wb_incandescent $73.4 M United Kingdom UK Energy UK Oil & Gas E&P
212 Arrow Exploration Corp AXL wb_incandescent $71.2 M Canada Canadian Energy Canadian Oil & Gas E&P
213 1Spatial plc SPA wb_incandescent $71.2 M United Kingdom UK Technology UK Software—Application
214 Volvere plc VLE wb_incandescent $71.2 M United Kingdom UK Financials UK Asset Management
215 KEFI Gold and Copper plc KEFI wb_incandescent $70.2 M Cyprus Cyprus Basic Materials Cyprus Gold
216 Caspian Sunrise plc CASP wb_incandescent $69.6 M United Kingdom UK Energy UK Oil & Gas E&P
217 Science in Sport plc SIS wb_incandescent $69.4 M

(Jan. 1, 2025)

 United Kingdom UK Consumer Staples UK Packaged Foods
218 Inspecs Group plc SPEC wb_incandescent $69.2 M United Kingdom UK Healthcare UK Medical Instruments & Supplies
219 Gear4music (Holdings) plc G4M wb_incandescent $68.3 M United Kingdom UK Consumer Discretionary UK Internet Retail
220 Dewhurst plc DWHT wb_incandescent $68.3 M United Kingdom UK Industrials UK Electrical Equipment & Parts
221 Dewhurst plc DWHA wb_incandescent $68.3 M United Kingdom UK Industrials UK Electrical Equipment & Parts
222 The Character Group plc CCT wb_incandescent $67.0 M United Kingdom UK Consumer Discretionary UK Leisure
223 Shoe Zone plc SHOE wb_incandescent $66.1 M United Kingdom UK Consumer Discretionary UK Footwear & Accessories
224 Billington Holdings plc BILN wb_incandescent $65.9 M United Kingdom UK Industrials UK Engineering & Construction
225 AfriTin Mining Limited ATM wb_incandescent $65.5 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
226 Van Elle Holdings plc VANL wb_incandescent $65.4 M United Kingdom UK Industrials UK Engineering & Construction
227 Windar Photonics plc WPHO wb_incandescent $64.9 M United Kingdom UK Technology UK Electronic Components
228 Iofina plc IOF wb_incandescent $64.0 M United Kingdom UK Basic Materials UK Specialty Chemicals
229 Horizonte Minerals plc HZM wb_incandescent $61.8 M

(Jan. 1, 2024)

 United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
230 SkinBioTherapeutics plc SBTX wb_incandescent $59.1 M United Kingdom UK Healthcare UK Biotechnology
231 Dolphin Capital Investors Ltd DCI wb_incandescent $59.1 M Greece Greece Real Estate Greece Real Estate Services
232 Jersey Oil and Gas plc JOG wb_incandescent $59.1 M United Kingdom UK Energy UK Oil & Gas E&P
233 Calnex Solutions plc CLX wb_incandescent $58.7 M United Kingdom UK Technology UK Communication Equipment
234 C4X Discovery Holdings plc C4XD wb_incandescent $57.3 M

(Jan. 1, 2024)

 United Kingdom UK Healthcare UK Biotechnology
235 Flowtech Fluidpower plc FLO wb_incandescent $57.0 M United Kingdom UK Industrials UK Industrial Distribution
236 ECO Animal Health Group plc EAH wb_incandescent $55.9 M United Kingdom UK Healthcare UK Drug Manufacturers—Specialty & Generic
237 CML Microsystems plc CML wb_incandescent $55.2 M United Kingdom UK Technology UK Semiconductors
238 Brave Bison Group plc BBSN wb_incandescent $55.1 M United Kingdom UK Communication Services UK Internet Content & Information
239 EPE Special Opportunities Limited ESO wb_incandescent $54.9 M United Kingdom UK Financials UK Asset Management
240 Touchstone Exploration Inc. TXP wb_incandescent $54.8 M Canada Canadian Energy Canadian Oil & Gas E&P

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

211. Zephyr Energy plc

Company Profile: Zephyr Energy plc
Market Cap (USD): $73.4 M
Stock: ZPHR wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

212. Arrow Exploration Corp

Company Profile: Arrow Exploration Corp
Market Cap (USD): $71.2 M
Stock: AXL wb_incandescent
Country: Canada
Sector: Canadian Energy
Industry: Canadian Oil & Gas E&P

213. 1Spatial plc

Company Profile: 1Spatial plc
Market Cap (USD): $71.2 M
Stock: SPA wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

214. Volvere plc

Company Profile: Volvere plc
Market Cap (USD): $71.2 M
Stock: VLE wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

215. KEFI Gold and Copper plc

Company Profile: KEFI Gold and Copper plc
Market Cap (USD): $70.2 M
Stock: KEFI wb_incandescent
Country: Cyprus
Sector: Cyprus Basic Materials
Industry: Cyprus Gold

216. Caspian Sunrise plc

Company Profile: Caspian Sunrise plc
Market Cap (USD): $69.6 M
Stock: CASP wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

217. Science in Sport plc

Company Profile: Science in Sport plc
Market Cap (USD): $69.4 M (Jan. 1, 2025)
Stock: SIS wb_incandescent
Country: United Kingdom
Sector: UK Consumer Staples
Industry: UK Packaged Foods

218. Inspecs Group plc

Company Profile: Inspecs Group plc
Market Cap (USD): $69.2 M
Stock: SPEC wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Medical Instruments & Supplies

219. Gear4music (Holdings) plc

Company Profile: Gear4music (Holdings) plc
Market Cap (USD): $68.3 M
Stock: G4M wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Internet Retail

220. Dewhurst plc

Company Profile: Dewhurst plc
Market Cap (USD): $68.3 M
Stock: DWHT wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Electrical Equipment & Parts

221. Dewhurst plc

Company Profile: Dewhurst plc
Market Cap (USD): $68.3 M
Stock: DWHA wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Electrical Equipment & Parts

222. The Character Group plc

Company Profile: The Character Group plc
Market Cap (USD): $67.0 M
Stock: CCT wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Leisure

223. Shoe Zone plc

Company Profile: Shoe Zone plc
Market Cap (USD): $66.1 M
Stock: SHOE wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Footwear & Accessories

224. Billington Holdings plc

Company Profile: Billington Holdings plc
Market Cap (USD): $65.9 M
Stock: BILN wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Engineering & Construction

225. AfriTin Mining Limited

Company Profile: AfriTin Mining Limited
Market Cap (USD): $65.5 M
Stock: ATM wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

226. Van Elle Holdings plc

Company Profile: Van Elle Holdings plc
Market Cap (USD): $65.4 M
Stock: VANL wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Engineering & Construction

227. Windar Photonics plc

Company Profile: Windar Photonics plc
Market Cap (USD): $64.9 M
Stock: WPHO wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Electronic Components

228. Iofina plc

Company Profile: Iofina plc
Market Cap (USD): $64.0 M
Stock: IOF wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Specialty Chemicals

229. Horizonte Minerals plc

Company Profile: Horizonte Minerals plc
Market Cap (USD): $61.8 M (Jan. 1, 2024)
Stock: HZM wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

230. SkinBioTherapeutics plc

Company Profile: SkinBioTherapeutics plc
Market Cap (USD): $59.1 M
Stock: SBTX wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

231. Dolphin Capital Investors Ltd

Company Profile: Dolphin Capital Investors Ltd
Market Cap (USD): $59.1 M
Stock: DCI wb_incandescent
Country: Greece
Sector: Greece Real Estate
Industry: Greece Real Estate Services

232. Jersey Oil and Gas plc

Company Profile: Jersey Oil and Gas plc
Market Cap (USD): $59.1 M
Stock: JOG wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

233. Calnex Solutions plc

Company Profile: Calnex Solutions plc
Market Cap (USD): $58.7 M
Stock: CLX wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Communication Equipment

234. C4X Discovery Holdings plc

Company Profile: C4X Discovery Holdings plc
Market Cap (USD): $57.3 M (Jan. 1, 2024)
Stock: C4XD wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

235. Flowtech Fluidpower plc

Company Profile: Flowtech Fluidpower plc
Market Cap (USD): $57.0 M
Stock: FLO wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Industrial Distribution

236. ECO Animal Health Group plc

Company Profile: ECO Animal Health Group plc
Market Cap (USD): $55.9 M
Stock: EAH wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Drug Manufacturers—Specialty & Generic

237. CML Microsystems plc

Company Profile: CML Microsystems plc
Market Cap (USD): $55.2 M
Stock: CML wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Semiconductors

238. Brave Bison Group plc

Company Profile: Brave Bison Group plc
Market Cap (USD): $55.1 M
Stock: BBSN wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Internet Content & Information

239. EPE Special Opportunities Limited

Company Profile: EPE Special Opportunities Limited
Market Cap (USD): $54.9 M
Stock: ESO wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

240. Touchstone Exploration Inc.

Company Profile: Touchstone Exploration Inc.
Market Cap (USD): $54.8 M
Stock: TXP wb_incandescent
Country: Canada
Sector: Canadian Energy
Industry: Canadian Oil & Gas E&P

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