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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
31 Mortgage Advice Bureau (Holdings) plc MAB1 wb_incandescent $704.0 M United Kingdom UK Financials UK Mortgage Finance
32 Young & Co.'s Brewery, plc YNGN wb_incandescent $694.0 M United Kingdom UK Consumer Discretionary UK Restaurants
33 Young & Co.'s Brewery, plc YNGA wb_incandescent $694.0 M United Kingdom UK Consumer Discretionary UK Restaurants
34 Cerillion plc CER wb_incandescent $646.0 M United Kingdom UK Technology UK Software—Application
35 Atalaya Mining plc ATYM wb_incandescent $630.8 M

(March 1, 2023)

 Cyprus Cyprus Basic Materials Cyprus Copper
36 Polar Capital Holdings plc POLR wb_incandescent $627.1 M United Kingdom UK Financials UK Asset Management
37 YouGov plc YOU wb_incandescent $614.7 M United Kingdom UK Communication Services UK Advertising Agencies
38 Advanced Medical Solutions Group plc AMS wb_incandescent $613.3 M United Kingdom UK Healthcare UK Medical Instruments & Supplies
39 Tatton Asset Management plc TAM wb_incandescent $592.2 M United Kingdom UK Financials UK Asset Management
40 Metals Exploration plc MTL wb_incandescent $573.4 M United Kingdom UK Basic Materials UK Gold
41 AB Dynamics plc ABDP wb_incandescent $530.0 M United Kingdom UK Consumer Discretionary UK Auto Parts
42 FW Thorpe plc TFW wb_incandescent $529.0 M United Kingdom UK Industrials UK Electrical Equipment & Parts
43 Mattioli Woods plc MTW wb_incandescent $523.3 M

(July 1, 2024)

 United Kingdom UK Financials UK Asset Management
44 Team17 Group plc TM17 wb_incandescent $522.6 M United Kingdom UK Communication Services UK Electronic Gaming & Multimedia
45 Rockhopper Exploration plc RKH wb_incandescent $514.3 M United Kingdom UK Energy UK Oil & Gas E&P
46 boohoo group plc BOO wb_incandescent $505.9 M United Kingdom UK Consumer Discretionary UK Internet Retail
47 Griffin Mining Limited GFM wb_incandescent $494.0 M United Kingdom UK Basic Materials UK Other Industrial Metals & Mining
48 Restore plc RST wb_incandescent $491.4 M United Kingdom UK Industrials UK Specialty Business Services
49 The Property Franchise Group plc TPFG wb_incandescent $483.8 M United Kingdom UK Real Estate UK Real Estate Services
50 Elixirr International plc ELIX wb_incandescent $478.7 M United Kingdom UK Industrials UK Consulting Services
51 Marlowe plc MRL wb_incandescent $473.9 M United Kingdom UK Industrials UK Security & Protection Services
52 Warpaint London plc W7L wb_incandescent $472.0 M United Kingdom UK Consumer Staples UK Household & Personal Products
53 PetroTal Corp. PTAL wb_incandescent $459.1 M United States US Energy US Oil & Gas E&P
54 Filtronic plc FTC wb_incandescent $457.7 M United Kingdom UK Technology UK Communication Equipment
55 RWS Holdings plc RWS wb_incandescent $456.5 M United Kingdom UK Industrials UK Consulting Services
56 Lok'nStore Group plc LOK wb_incandescent $449.3 M

(July 1, 2024)

 United Kingdom UK Real Estate UK Real Estate Services
57 FRP Advisory Group plc FRP wb_incandescent $437.7 M United Kingdom UK Financials UK Capital Markets
58 Loungers plc LGRS wb_incandescent $418.1 M

(Jan. 1, 2025)

 United Kingdom UK Consumer Discretionary UK Restaurants
59 Caledonia Mining Corporation plc CMCL wb_incandescent $417.1 M United Kingdom UK Basic Materials UK Gold
60 Alliance Pharma plc APH wb_incandescent $413.8 M

(Jan. 1, 2025)

 United Kingdom UK Healthcare UK Drug Manufacturers—Specialty & Generic

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

31. Mortgage Advice Bureau (Holdings) plc

Company Profile: Mortgage Advice Bureau (Holdings) plc
Market Cap (USD): $704.0 M
Stock: MAB1 wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Mortgage Finance

32. Young & Co.'s Brewery, plc

Company Profile: Young & Co.'s Brewery, plc
Market Cap (USD): $694.0 M
Stock: YNGN wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Restaurants

33. Young & Co.'s Brewery, plc

Company Profile: Young & Co.'s Brewery, plc
Market Cap (USD): $694.0 M
Stock: YNGA wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Restaurants

34. Cerillion plc

Company Profile: Cerillion plc
Market Cap (USD): $646.0 M
Stock: CER wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

35. Atalaya Mining plc

Company Profile: Atalaya Mining plc
Market Cap (USD): $630.8 M (March 1, 2023)
Stock: ATYM wb_incandescent
Country: Cyprus
Sector: Cyprus Basic Materials
Industry: Cyprus Copper

36. Polar Capital Holdings plc

Company Profile: Polar Capital Holdings plc
Market Cap (USD): $627.1 M
Stock: POLR wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

37. YouGov plc

Company Profile: YouGov plc
Market Cap (USD): $614.7 M
Stock: YOU wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Advertising Agencies

38. Advanced Medical Solutions Group plc

Company Profile: Advanced Medical Solutions Group plc
Market Cap (USD): $613.3 M
Stock: AMS wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Medical Instruments & Supplies

39. Tatton Asset Management plc

Company Profile: Tatton Asset Management plc
Market Cap (USD): $592.2 M
Stock: TAM wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

40. Metals Exploration plc

Company Profile: Metals Exploration plc
Market Cap (USD): $573.4 M
Stock: MTL wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Gold

41. AB Dynamics plc

Company Profile: AB Dynamics plc
Market Cap (USD): $530.0 M
Stock: ABDP wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Auto Parts

42. FW Thorpe plc

Company Profile: FW Thorpe plc
Market Cap (USD): $529.0 M
Stock: TFW wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Electrical Equipment & Parts

43. Mattioli Woods plc

Company Profile: Mattioli Woods plc
Market Cap (USD): $523.3 M (July 1, 2024)
Stock: MTW wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

44. Team17 Group plc

Company Profile: Team17 Group plc
Market Cap (USD): $522.6 M
Stock: TM17 wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Electronic Gaming & Multimedia

45. Rockhopper Exploration plc

Company Profile: Rockhopper Exploration plc
Market Cap (USD): $514.3 M
Stock: RKH wb_incandescent
Country: United Kingdom
Sector: UK Energy
Industry: UK Oil & Gas E&P

46. boohoo group plc

Company Profile: boohoo group plc
Market Cap (USD): $505.9 M
Stock: BOO wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Internet Retail

47. Griffin Mining Limited

Company Profile: Griffin Mining Limited
Market Cap (USD): $494.0 M
Stock: GFM wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Industrial Metals & Mining

48. Restore plc

Company Profile: Restore plc
Market Cap (USD): $491.4 M
Stock: RST wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Specialty Business Services

49. The Property Franchise Group plc

Company Profile: The Property Franchise Group plc
Market Cap (USD): $483.8 M
Stock: TPFG wb_incandescent
Country: United Kingdom
Sector: UK Real Estate
Industry: UK Real Estate Services

50. Elixirr International plc

Company Profile: Elixirr International plc
Market Cap (USD): $478.7 M
Stock: ELIX wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Consulting Services

51. Marlowe plc

Company Profile: Marlowe plc
Market Cap (USD): $473.9 M
Stock: MRL wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Security & Protection Services

52. Warpaint London plc

Company Profile: Warpaint London plc
Market Cap (USD): $472.0 M
Stock: W7L wb_incandescent
Country: United Kingdom
Sector: UK Consumer Staples
Industry: UK Household & Personal Products

53. PetroTal Corp.

Company Profile: PetroTal Corp.
Market Cap (USD): $459.1 M
Stock: PTAL wb_incandescent
Country: United States
Sector: US Energy
Industry: US Oil & Gas E&P

54. Filtronic plc

Company Profile: Filtronic plc
Market Cap (USD): $457.7 M
Stock: FTC wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Communication Equipment

55. RWS Holdings plc

Company Profile: RWS Holdings plc
Market Cap (USD): $456.5 M
Stock: RWS wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Consulting Services

56. Lok'nStore Group plc

Company Profile: Lok'nStore Group plc
Market Cap (USD): $449.3 M (July 1, 2024)
Stock: LOK wb_incandescent
Country: United Kingdom
Sector: UK Real Estate
Industry: UK Real Estate Services

57. FRP Advisory Group plc

Company Profile: FRP Advisory Group plc
Market Cap (USD): $437.7 M
Stock: FRP wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

58. Loungers plc

Company Profile: Loungers plc
Market Cap (USD): $418.1 M (Jan. 1, 2025)
Stock: LGRS wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Restaurants

59. Caledonia Mining Corporation plc

Company Profile: Caledonia Mining Corporation plc
Market Cap (USD): $417.1 M
Stock: CMCL wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Gold

60. Alliance Pharma plc

Company Profile: Alliance Pharma plc
Market Cap (USD): $413.8 M (Jan. 1, 2025)
Stock: APH wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Drug Manufacturers—Specialty & Generic

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