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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
121 Avingtrans plc AVG wb_incandescent $191.1 M United Kingdom UK Industrials UK Specialty Industrial Machinery
122 Eurasia Mining plc EUA wb_incandescent $186.6 M United Kingdom UK Basic Materials UK Other Precious Metals & Mining
123 Eleco plc ELCO wb_incandescent $184.4 M United Kingdom UK Technology UK Software—Application
124 The Alumasc Group plc ALU wb_incandescent $182.9 M United Kingdom UK Industrials UK Building Products & Equipment
125 Trident Royalties plc TRR wb_incandescent $177.6 M

(July 1, 2024)

 United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
126 Inspired Energy plc INSE wb_incandescent $176.7 M United Kingdom UK Industrials UK Specialty Business Services
127 Tracsis plc TRCS wb_incandescent $176.7 M United Kingdom UK Technology UK Software—Application
128 Frontier Developments plc FDEV wb_incandescent $175.7 M United Kingdom UK Communication Services UK Electronic Gaming & Multimedia
129 Shanta Gold Limited SHG wb_incandescent $174.0 M

(Jan. 1, 2024)

 United Kingdom UK Basic Materials UK Gold
130 Avacta Group plc AVCT wb_incandescent $172.9 M United Kingdom UK Healthcare UK Biotechnology
131 Gemfields Group Limited GEM wb_incandescent $171.1 M United Kingdom UK Basic Materials UK Other Precious Metals & Mining
132 Somero Enterprises, Inc. SOM wb_incandescent $169.0 M United States US Industrials US Farm & Heavy Construction Machinery
133 Quartix Holdings plc QTX wb_incandescent $167.1 M United Kingdom UK Technology UK Scientific & Technical Instruments
134 Premier Miton Group plc PMI wb_incandescent $165.9 M United Kingdom UK Financials UK Asset Management
135 EKF Diagnostics Holdings plc EKF wb_incandescent $165.2 M United Kingdom UK Healthcare UK Diagnostics & Research
136 Springfield Properties plc SPR wb_incandescent $164.5 M United Kingdom UK Consumer Discretionary UK Residential Construction
137 Solid State plc SOLI wb_incandescent $164.3 M United Kingdom UK Technology UK Electronic Components
138 Kore Potash plc KP2 wb_incandescent $160.2 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
139 Jadestone Energy Inc. JSE wb_incandescent $156.2 M Singapore Singaporean Energy Singaporean Oil & Gas E&P
140 Accrol Group Holdings plc ACRL wb_incandescent $153.5 M

(Jan. 1, 2024)

 United Kingdom UK Consumer Staples UK Household & Personal Products
141 Intercede Group plc IGP wb_incandescent $150.7 M United Kingdom UK Technology UK Software—Application
142 DP Poland plc DPP wb_incandescent $149.6 M Poland Polish Consumer Discretionary Polish Restaurants
143 i3 Energy plc I3E wb_incandescent $149.3 M

(July 1, 2024)

 United Kingdom UK Energy UK Oil & Gas E&P
144 Afentra PLC AET wb_incandescent $147.1 M United Kingdom UK Energy UK Oil & Gas E&P
145 Jubilee Metals Group plc JLP wb_incandescent $147.1 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
146 Ramsdens Holdings plc RFX wb_incandescent $146.8 M United Kingdom UK Industrials UK Conglomerates
147 Invinity Energy Systems plc IES wb_incandescent $145.4 M United Kingdom UK Utilities UK Utilities—Diversified
148 ActiveOps Plc AOM wb_incandescent $144.2 M United Kingdom UK Technology UK Software—Application
149 Cornish Metals, Inc. CUSN wb_incandescent $142.3 M Canada Canadian Basic Materials Canadian Other Industrial Metals & Mining
150 Mkango Resources Ltd. MKA wb_incandescent $139.4 M Canada Canadian Basic Materials Canadian Other Industrial Metals & Mining

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

121. Avingtrans plc

Company Profile: Avingtrans plc
Market Cap (USD): $191.1 M
Stock: AVG wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Specialty Industrial Machinery

122. Eurasia Mining plc

Company Profile: Eurasia Mining plc
Market Cap (USD): $186.6 M
Stock: EUA wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Precious Metals & Mining

123. Eleco plc

Company Profile: Eleco plc
Market Cap (USD): $184.4 M
Stock: ELCO wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

124. The Alumasc Group plc

Company Profile: The Alumasc Group plc
Market Cap (USD): $182.9 M
Stock: ALU wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Building Products & Equipment

125. Trident Royalties plc

Company Profile: Trident Royalties plc
Market Cap (USD): $177.6 M (July 1, 2024)
Stock: TRR wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

126. Inspired Energy plc

Company Profile: Inspired Energy plc
Market Cap (USD): $176.7 M
Stock: INSE wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Specialty Business Services

127. Tracsis plc

Company Profile: Tracsis plc
Market Cap (USD): $176.7 M
Stock: TRCS wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

128. Frontier Developments plc

Company Profile: Frontier Developments plc
Market Cap (USD): $175.7 M
Stock: FDEV wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Electronic Gaming & Multimedia

129. Shanta Gold Limited

Company Profile: Shanta Gold Limited
Market Cap (USD): $174.0 M (Jan. 1, 2024)
Stock: SHG wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Gold

130. Avacta Group plc

Company Profile: Avacta Group plc
Market Cap (USD): $172.9 M
Stock: AVCT wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

131. Gemfields Group Limited

Company Profile: Gemfields Group Limited
Market Cap (USD): $171.1 M
Stock: GEM wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Precious Metals & Mining

132. Somero Enterprises, Inc.

Company Profile: Somero Enterprises, Inc.
Market Cap (USD): $169.0 M
Stock: SOM wb_incandescent
Country: United States
Sector: US Industrials
Industry: US Farm & Heavy Construction Machinery

133. Quartix Holdings plc

Company Profile: Quartix Holdings plc
Market Cap (USD): $167.1 M
Stock: QTX wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Scientific & Technical Instruments

134. Premier Miton Group plc

Company Profile: Premier Miton Group plc
Market Cap (USD): $165.9 M
Stock: PMI wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

135. EKF Diagnostics Holdings plc

Company Profile: EKF Diagnostics Holdings plc
Market Cap (USD): $165.2 M
Stock: EKF wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Diagnostics & Research

136. Springfield Properties plc

Company Profile: Springfield Properties plc
Market Cap (USD): $164.5 M
Stock: SPR wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Residential Construction

137. Solid State plc

Company Profile: Solid State plc
Market Cap (USD): $164.3 M
Stock: SOLI wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Electronic Components

138. Kore Potash plc

Company Profile: Kore Potash plc
Market Cap (USD): $160.2 M
Stock: KP2 wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

139. Jadestone Energy Inc.

Company Profile: Jadestone Energy Inc.
Market Cap (USD): $156.2 M
Stock: JSE wb_incandescent
Country: Singapore
Sector: Singaporean Energy
Industry: Singaporean Oil & Gas E&P

140. Accrol Group Holdings plc

Company Profile: Accrol Group Holdings plc
Market Cap (USD): $153.5 M (Jan. 1, 2024)
Stock: ACRL wb_incandescent
Country: United Kingdom
Sector: UK Consumer Staples
Industry: UK Household & Personal Products

141. Intercede Group plc

Company Profile: Intercede Group plc
Market Cap (USD): $150.7 M
Stock: IGP wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

142. DP Poland plc

Company Profile: DP Poland plc
Market Cap (USD): $149.6 M
Stock: DPP wb_incandescent
Country: Poland
Sector: Polish Consumer Discretionary
Industry: Polish Restaurants

143. i3 Energy plc

Company Profile: i3 Energy plc
Market Cap (USD): $149.3 M (July 1, 2024)
Stock: I3E wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

144. Afentra PLC

Company Profile: Afentra PLC
Market Cap (USD): $147.1 M
Stock: AET wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

145. Jubilee Metals Group plc

Company Profile: Jubilee Metals Group plc
Market Cap (USD): $147.1 M
Stock: JLP wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

146. Ramsdens Holdings plc

Company Profile: Ramsdens Holdings plc
Market Cap (USD): $146.8 M
Stock: RFX wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Conglomerates

147. Invinity Energy Systems plc

Company Profile: Invinity Energy Systems plc
Market Cap (USD): $145.4 M
Stock: IES wb_incandescent
Country: United Kingdom
Sector: UK Utilities
Industry: UK Utilities—Diversified

148. ActiveOps Plc

Company Profile: ActiveOps Plc
Market Cap (USD): $144.2 M
Stock: AOM wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

149. Cornish Metals, Inc.

Company Profile: Cornish Metals, Inc.
Market Cap (USD): $142.3 M
Stock: CUSN wb_incandescent
Country: Canada
Sector: Canadian Basic Materials
Industry: Canadian Other Industrial Metals & Mining

150. Mkango Resources Ltd.

Company Profile: Mkango Resources Ltd.
Market Cap (USD): $139.4 M
Stock: MKA wb_incandescent
Country: Canada
Sector: Canadian Basic Materials
Industry: Canadian Other Industrial Metals & Mining

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