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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 Jan. 1, 2025

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Ranking Company Stock Market Cap (USD) Country Sector Industry
181 Crystal Amber Fund Ld CRS wb_incandescent $88.2 M United Kingdom UK Financials UK Asset Management
182 Good Energy Group plc GOOD wb_incandescent $87.9 M United Kingdom UK Utilities UK Utilities—Renewable
183 Arrow Exploration Corp AXL wb_incandescent $87.5 M Canada Canadian Energy Canadian Oil & Gas E&P
184 Audioboom Group plc BOOM wb_incandescent $84.9 M United Kingdom UK Communication Services UK Internet Content & Information
185 Invinity Energy Systems plc IES wb_incandescent $83.7 M United Kingdom UK Utilities UK Utilities—Diversified
186 e-therapeutics plc ETX wb_incandescent $83.6 M

(Jan. 1, 2024)

United Kingdom UK Healthcare UK Biotechnology
187 Dewhurst plc DWHT wb_incandescent $83.5 M United Kingdom UK Industrials UK Electrical Equipment & Parts
188 Dewhurst plc DWHA wb_incandescent $83.5 M United Kingdom UK Industrials UK Electrical Equipment & Parts
189 Wynnstay Group plc WYN wb_incandescent $82.9 M United Kingdom UK Basic Materials UK Agricultural Inputs
190 Condor Gold plc CNR wb_incandescent $82.7 M United Kingdom UK Basic Materials UK Gold
191 Oxford Metrics plc OMG wb_incandescent $82.2 M United Kingdom UK Technology UK Software—Application
192 Aura Energy Limited AURA wb_incandescent $81.7 M Australia Australian Energy Australian Uranium
193 Churchill China plc CHH wb_incandescent $79.2 M United Kingdom UK Consumer Discretionary UK Furnishings, Fixtures & Appliances
194 Kooth plc KOO wb_incandescent $79.2 M United Kingdom UK Communication Services UK Internet Content & Information
195 Calnex Solutions plc CLX wb_incandescent $78.6 M United Kingdom UK Technology UK Communication Equipment
196 Billington Holdings plc BILN wb_incandescent $78.4 M United Kingdom UK Industrials UK Engineering & Construction
197 Gama Aviation plc GMAA wb_incandescent $77.4 M

(Jan. 1, 2024)

United Kingdom UK Industrials UK Airports & Air Services
198 Zephyr Energy plc ZPHR wb_incandescent $75.5 M United Kingdom UK Energy UK Oil & Gas E&P
199 Synectics plc SNX wb_incandescent $72.6 M United Kingdom UK Industrials UK Security & Protection Services
200 Personal Group Holdings plc PGH wb_incandescent $72.3 M United Kingdom UK Financials UK Insurance—Property & Casualty
201 SDI Group plc SDI wb_incandescent $72.2 M United Kingdom UK Technology UK Scientific & Technical Instruments
202 IG Design Group plc IGR wb_incandescent $70.5 M United Kingdom UK Consumer Discretionary UK Specialty Retail
203 Zanaga Iron Ore Company Limited ZIOC wb_incandescent $70.3 M Virgin Islands (British) Virgin Islands (British) Basic Materials Virgin Islands (British) Steel
204 Time Finance plc TIME wb_incandescent $69.9 M United Kingdom UK Financials UK Credit Services
205 Helium One Global Ltd HE1 wb_incandescent $69.8 M Tanzania Tanzania Basic Materials Tanzania Other Industrial Metals & Mining
206 Science in Sport plc SIS wb_incandescent $69.4 M United Kingdom UK Consumer Staples UK Packaged Foods
207 Real Estate Investors plc RLE wb_incandescent $67.8 M United Kingdom UK Real Estate UK REIT—Diversified
208 Windar Photonics plc WPHO wb_incandescent $67.5 M United Kingdom UK Technology UK Electronic Components
209 Touchstone Exploration Inc. TXP wb_incandescent $67.4 M Canada Canadian Energy Canadian Oil & Gas E&P
210 Watkin Jones plc WJG wb_incandescent $64.5 M United Kingdom UK Consumer Discretionary UK Residential Construction

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

181. Crystal Amber Fund Ld

Company Profile: Crystal Amber Fund Ld
Market Cap (USD): $88.2 M
Stock: CRS wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

182. Good Energy Group plc

Company Profile: Good Energy Group plc
Market Cap (USD): $87.9 M
Stock: GOOD wb_incandescent
Country: United Kingdom
Sector: UK Utilities
Industry: UK Utilities—Renewable

183. Arrow Exploration Corp

Company Profile: Arrow Exploration Corp
Market Cap (USD): $87.5 M
Stock: AXL wb_incandescent
Country: Canada
Sector: Canadian Energy
Industry: Canadian Oil & Gas E&P

184. Audioboom Group plc

Company Profile: Audioboom Group plc
Market Cap (USD): $84.9 M
Stock: BOOM wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Internet Content & Information

185. Invinity Energy Systems plc

Company Profile: Invinity Energy Systems plc
Market Cap (USD): $83.7 M
Stock: IES wb_incandescent
Country: United Kingdom
Sector: UK Utilities
Industry: UK Utilities—Diversified

186. e-therapeutics plc

Company Profile: e-therapeutics plc
Market Cap (USD): $83.6 M (Jan. 1, 2024)
Stock: ETX wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

187. Dewhurst plc

Company Profile: Dewhurst plc
Market Cap (USD): $83.5 M
Stock: DWHT wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Electrical Equipment & Parts

188. Dewhurst plc

Company Profile: Dewhurst plc
Market Cap (USD): $83.5 M
Stock: DWHA wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Electrical Equipment & Parts

189. Wynnstay Group plc

Company Profile: Wynnstay Group plc
Market Cap (USD): $82.9 M
Stock: WYN wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Agricultural Inputs

190. Condor Gold plc

Company Profile: Condor Gold plc
Market Cap (USD): $82.7 M
Stock: CNR wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Gold

191. Oxford Metrics plc

Company Profile: Oxford Metrics plc
Market Cap (USD): $82.2 M
Stock: OMG wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

192. Aura Energy Limited

Company Profile: Aura Energy Limited
Market Cap (USD): $81.7 M
Stock: AURA wb_incandescent
Country: Australia
Sector: Australian Energy
Industry: Australian Uranium

195. Calnex Solutions plc

Company Profile: Calnex Solutions plc
Market Cap (USD): $78.6 M
Stock: CLX wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Communication Equipment

196. Billington Holdings plc

Company Profile: Billington Holdings plc
Market Cap (USD): $78.4 M
Stock: BILN wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Engineering & Construction

197. Gama Aviation plc

Company Profile: Gama Aviation plc
Market Cap (USD): $77.4 M (Jan. 1, 2024)
Stock: GMAA wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Airports & Air Services

198. Zephyr Energy plc

Company Profile: Zephyr Energy plc
Market Cap (USD): $75.5 M
Stock: ZPHR wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

199. Synectics plc

Company Profile: Synectics plc
Market Cap (USD): $72.6 M
Stock: SNX wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Security & Protection Services

200. Personal Group Holdings plc

Company Profile: Personal Group Holdings plc
Market Cap (USD): $72.3 M
Stock: PGH wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Insurance—Property & Casualty

201. SDI Group plc

Company Profile: SDI Group plc
Market Cap (USD): $72.2 M
Stock: SDI wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Scientific & Technical Instruments

202. IG Design Group plc

Company Profile: IG Design Group plc
Market Cap (USD): $70.5 M
Stock: IGR wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Specialty Retail

203. Zanaga Iron Ore Company Limited

Company Profile: Zanaga Iron Ore Company Limited
Market Cap (USD): $70.3 M
Stock: ZIOC wb_incandescent
Country: Virgin Islands (British)
Sector: Virgin Islands (British) Basic Materials
Industry: Virgin Islands (British) Steel

204. Time Finance plc

Company Profile: Time Finance plc
Market Cap (USD): $69.9 M
Stock: TIME wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Credit Services

205. Helium One Global Ltd

Company Profile: Helium One Global Ltd
Market Cap (USD): $69.8 M
Stock: HE1 wb_incandescent
Country: Tanzania
Sector: Tanzania Basic Materials
Industry: Tanzania Other Industrial Metals & Mining

206. Science in Sport plc

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

207. Real Estate Investors plc

Company Profile: Real Estate Investors plc
Market Cap (USD): $67.8 M
Stock: RLE wb_incandescent
Country: United Kingdom
Sector: UK Real Estate
Industry: UK REIT—Diversified

208. Windar Photonics plc

Company Profile: Windar Photonics plc
Market Cap (USD): $67.5 M
Stock: WPHO wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Electronic Components

209. Touchstone Exploration Inc.

Company Profile: Touchstone Exploration Inc.
Market Cap (USD): $67.4 M
Stock: TXP wb_incandescent
Country: Canada
Sector: Canadian Energy
Industry: Canadian Oil & Gas E&P

210. Watkin Jones plc

Company Profile: Watkin Jones plc
Market Cap (USD): $64.5 M
Stock: WJG wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Residential Construction