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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

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Ranking Company Stock Market Cap (USD) Country Sector Industry
151 Scancell Holdings plc SCLP $138.3 M United Kingdom UK Healthcare UK Biotechnology
152 Eco (Atlantic) Oil & Gas Ltd. ECO $137.9 M Canada Canadian Energy Canadian Oil & Gas E&P
153 Gemfields Group Limited GEM $133.4 M United Kingdom UK Basic Materials UK Other Precious Metals & Mining
154 Orosur Mining Inc. OMI $132.1 M Canada Canadian Basic Materials Canadian Gold
155 Bioventix plc BVXP $130.8 M United Kingdom UK Healthcare UK Biotechnology
156 4basebio PLC 4BB $128.2 M United Kingdom UK Healthcare UK Biotechnology
157 Faron Pharmaceuticals OY FARN $127.9 M

(July 1, 2024)

 Finland Finnish Healthcare Finnish Biotechnology
158 Afentra PLC AET $126.7 M United Kingdom UK Energy UK Oil & Gas E&P
159 Personal Group Holdings plc PGH $126.0 M United Kingdom UK Financials UK Insurance—Property & Casualty
160 Mpac Group plc MPAC $125.5 M United Kingdom UK Industrials UK Specialty Industrial Machinery
161 The Alumasc Group plc ALU $125.1 M United Kingdom UK Industrials UK Building Products & Equipment
162 Tracsis plc TRCS $124.1 M United Kingdom UK Technology UK Software—Application
163 Solid State plc SOLI $122.4 M United Kingdom UK Technology UK Electronic Components
164 Cake Box Holdings plc CBOX $122.3 M United Kingdom UK Consumer Staples UK Grocery Stores
165 Savannah Resources plc SAV $121.3 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
166 Journeo plc JNEO $119.4 M United Kingdom UK Industrials UK Security & Protection Services
167 Premier Miton Group plc PMI $116.6 M United Kingdom UK Financials UK Asset Management
168 Wynnstay Group plc WYN $113.3 M United Kingdom UK Basic Materials UK Agricultural Inputs
169 Borders & Southern Petroleum plc BOR $113.1 M United Kingdom UK Energy UK Oil & Gas E&P
170 Venture Life Group plc VLG $112.0 M United Kingdom UK Healthcare UK Drug Manufacturers—Specialty & Generic
171 SDI Group plc SDI $111.9 M United Kingdom UK Technology UK Scientific & Technical Instruments
172 Anpario plc ANP $109.5 M United Kingdom UK Consumer Staples UK Packaged Foods
173 Aura Energy Limited AURA $108.6 M Australia Australian Energy Australian Uranium
174 Anexo Group plc ANX $107.1 M

(July 1, 2025)

 United Kingdom UK Industrials UK Rental & Leasing Services
175 Michelmersh Brick Holdings plc MBH $105.6 M United Kingdom UK Basic Materials UK Building Materials
176 Intercede Group plc IGP $102.6 M United Kingdom UK Technology UK Software—Application
177 Watkin Jones plc WJG $101.4 M United Kingdom UK Consumer Discretionary UK Residential Construction
178 Crystal Amber Fund Ld CRS $98.8 M United Kingdom UK Financials UK Asset Management
179 Inspecs Group plc SPEC $97.8 M United Kingdom UK Healthcare UK Medical Instruments & Supplies
180 Kingswood Holdings Limited KWG $96.9 M

(Jan. 1, 2025)

 United Kingdom UK Financials UK Asset Management

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

151. Scancell Holdings plc

Company Profile: Scancell Holdings plc
Market Cap (USD): $138.3 M
Stock: SCLP wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

152. Eco (Atlantic) Oil & Gas Ltd.

Company Profile: Eco (Atlantic) Oil & Gas Ltd.
Market Cap (USD): $137.9 M
Stock: ECO wb_incandescent
Country: Canada
Sector: Canadian Energy
Industry: Canadian Oil & Gas E&P

153. Gemfields Group Limited

Company Profile: Gemfields Group Limited
Market Cap (USD): $133.4 M
Stock: GEM wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Precious Metals & Mining

154. Orosur Mining Inc.

Company Profile: Orosur Mining Inc.
Market Cap (USD): $132.1 M
Stock: OMI wb_incandescent
Country: Canada
Sector: Canadian Basic Materials
Industry: Canadian Gold

155. Bioventix plc

Company Profile: Bioventix plc
Market Cap (USD): $130.8 M
Stock: BVXP wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

156. 4basebio PLC

Company Profile: 4basebio PLC
Market Cap (USD): $128.2 M
Stock: 4BB wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

157. Faron Pharmaceuticals OY

Company Profile: Faron Pharmaceuticals OY
Market Cap (USD): $127.9 M (July 1, 2024)
Stock: FARN wb_incandescent
Country: Finland
Sector: Finnish Healthcare
Industry: Finnish Biotechnology

158. Afentra PLC

Company Profile: Afentra PLC
Market Cap (USD): $126.7 M
Stock: AET wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

159. Personal Group Holdings plc

Company Profile: Personal Group Holdings plc
Market Cap (USD): $126.0 M
Stock: PGH wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Insurance—Property & Casualty

160. Mpac Group plc

Company Profile: Mpac Group plc
Market Cap (USD): $125.5 M
Stock: MPAC wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Specialty Industrial Machinery

161. The Alumasc Group plc

Company Profile: The Alumasc Group plc
Market Cap (USD): $125.1 M
Stock: ALU wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Building Products & Equipment

162. Tracsis plc

Company Profile: Tracsis plc
Market Cap (USD): $124.1 M
Stock: TRCS wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

163. Solid State plc

Company Profile: Solid State plc
Market Cap (USD): $122.4 M
Stock: SOLI wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Electronic Components

164. Cake Box Holdings plc

Company Profile: Cake Box Holdings plc
Market Cap (USD): $122.3 M
Stock: CBOX wb_incandescent
Country: United Kingdom
Sector: UK Consumer Staples
Industry: UK Grocery Stores

165. Savannah Resources plc

Company Profile: Savannah Resources plc
Market Cap (USD): $121.3 M
Stock: SAV wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

166. Journeo plc

Company Profile: Journeo plc
Market Cap (USD): $119.4 M
Stock: JNEO wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Security & Protection Services

167. Premier Miton Group plc

Company Profile: Premier Miton Group plc
Market Cap (USD): $116.6 M
Stock: PMI wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

168. Wynnstay Group plc

Company Profile: Wynnstay Group plc
Market Cap (USD): $113.3 M
Stock: WYN wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Agricultural Inputs

169. Borders & Southern Petroleum plc

Company Profile: Borders & Southern Petroleum plc
Market Cap (USD): $113.1 M
Stock: BOR wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

170. Venture Life Group plc

Company Profile: Venture Life Group plc
Market Cap (USD): $112.0 M
Stock: VLG wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Drug Manufacturers—Specialty & Generic

171. SDI Group plc

Company Profile: SDI Group plc
Market Cap (USD): $111.9 M
Stock: SDI wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Scientific & Technical Instruments

172. Anpario plc

Company Profile: Anpario plc
Market Cap (USD): $109.5 M
Stock: ANP wb_incandescent
Country: United Kingdom
Sector: UK Consumer Staples
Industry: UK Packaged Foods

173. Aura Energy Limited

Company Profile: Aura Energy Limited
Market Cap (USD): $108.6 M
Stock: AURA wb_incandescent
Country: Australia
Sector: Australian Energy
Industry: Australian Uranium

174. Anexo Group plc

Company Profile: Anexo Group plc
Market Cap (USD): $107.1 M (July 1, 2025)
Stock: ANX wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Rental & Leasing Services

175. Michelmersh Brick Holdings plc

Company Profile: Michelmersh Brick Holdings plc
Market Cap (USD): $105.6 M
Stock: MBH wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Building Materials

176. Intercede Group plc

Company Profile: Intercede Group plc
Market Cap (USD): $102.6 M
Stock: IGP wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

177. Watkin Jones plc

Company Profile: Watkin Jones plc
Market Cap (USD): $101.4 M
Stock: WJG wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Residential Construction

178. Crystal Amber Fund Ld

Company Profile: Crystal Amber Fund Ld
Market Cap (USD): $98.8 M
Stock: CRS wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

179. Inspecs Group plc

Company Profile: Inspecs Group plc
Market Cap (USD): $97.8 M
Stock: SPEC wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Medical Instruments & Supplies

180. Kingswood Holdings Limited

Company Profile: Kingswood Holdings Limited
Market Cap (USD): $96.9 M (Jan. 1, 2025)
Stock: KWG wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

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