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FTSE AIM UK 50
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Top FTSE AIM UK 50 Companies by Market Cap and Stocks in 2025

This is the list of the largest public listed companies in the FTSE AIM UK 50 index ranked by market capitalization, together with links to their reference stock, sector and industry.

FTSE AIM UK 50 Chart & Analysis

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Top FTSE AIM UK 50 Companies Ranking by Market Cap as of Jan. 1, 2025

Ranking Company Stock Market Cap (USD) Country Sector Industry
31 Young & Co.'s Brewery, plc YNGN wb_incandescent $573.9 M United Kingdom UK Consumer Discretionary UK Restaurants
32 Young & Co.'s Brewery, plc YNGA wb_incandescent $573.9 M United Kingdom UK Consumer Discretionary UK Restaurants
33 Mortgage Advice Bureau (Holdings) plc MAB1 wb_incandescent $465.5 M United Kingdom UK Financials UK Mortgage Finance
34 Numis Corporation plc NUM wb_incandescent $465.4 M

(July 1, 2023)

 United Kingdom UK Financials UK Capital Markets
35 FW Thorpe plc TFW wb_incandescent $447.8 M United Kingdom UK Industrials UK Electrical Equipment & Parts
36 Warehouse REIT plc WHR wb_incandescent $431.1 M United Kingdom UK Real Estate UK REIT—Industrial
37 Next Fifteen Communications Group plc NFC wb_incandescent $426.5 M United Kingdom UK Communication Services UK Advertising Agencies
38 Alliance Pharma plc APH wb_incandescent $413.8 M United Kingdom UK Healthcare UK Drug Manufacturers—Specialty & Generic
39 Ceres Power Holdings plc CWR wb_incandescent $412.1 M United Kingdom UK Industrials UK Electrical Equipment & Parts
40 Midwich Group plc MIDW wb_incandescent $368.8 M United Kingdom UK Technology UK Electronics & Computer Distribution
41 Central Asia Metals plc CAML wb_incandescent $346.2 M United Kingdom UK Basic Materials UK Copper
42 Impax Asset Management Group plc IPX wb_incandescent $331.1 M United Kingdom UK Financials UK Asset Management
43 dotdigital Group plc DOTD wb_incandescent $315.8 M United Kingdom UK Technology UK Software—Application
44 ITM Power plc ITM wb_incandescent $283.6 M United Kingdom UK Technology UK Electronic Components
45 Knights Group Holdings plc KGH wb_incandescent $154.2 M

(July 1, 2024)

 United Kingdom UK Industrials UK Specialty Business Services
46 Gooch & Housego plc GHH wb_incandescent $152.9 M United Kingdom UK Technology UK Electronic Components
47 IQE plc IQE wb_incandescent $149.5 M United Kingdom UK Technology UK Semiconductor Equipment & Materials
48 Frontier Developments plc FDEV wb_incandescent $110.0 M United Kingdom UK Communication Services UK Electronic Gaming & Multimedia
49 iomart Group plc IOM wb_incandescent $102.8 M United Kingdom UK Technology UK Software—Infrastructure
50 Watkin Jones plc WJG wb_incandescent $64.5 M United Kingdom UK Consumer Discretionary UK Residential Construction
51 Scapa Group plc SCPA wb_incandescent United Kingdom UK Basic Materials UK Specialty Chemicals

Top FTSE AIM UK 50 Companies Ranking by Market Cap as of Jan. 1, 2025

31. Young & Co.'s Brewery, plc

Company Profile: Young & Co.'s Brewery, plc
Market Cap (USD): $573.9 M
Stock: YNGN wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Restaurants

32. Young & Co.'s Brewery, plc

Company Profile: Young & Co.'s Brewery, plc
Market Cap (USD): $573.9 M
Stock: YNGA wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Restaurants

33. Mortgage Advice Bureau (Holdings) plc

Company Profile: Mortgage Advice Bureau (Holdings) plc
Market Cap (USD): $465.5 M
Stock: MAB1 wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Mortgage Finance

34. Numis Corporation plc

Company Profile: Numis Corporation plc
Market Cap (USD): $465.4 M (July 1, 2023)
Stock: NUM wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Capital Markets

35. FW Thorpe plc

Company Profile: FW Thorpe plc
Market Cap (USD): $447.8 M
Stock: TFW wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Electrical Equipment & Parts

36. Warehouse REIT plc

Company Profile: Warehouse REIT plc
Market Cap (USD): $431.1 M
Stock: WHR wb_incandescent
Country: United Kingdom
Sector: UK Real Estate
Industry: UK REIT—Industrial

37. Next Fifteen Communications Group plc

Company Profile: Next Fifteen Communications Group plc
Market Cap (USD): $426.5 M
Stock: NFC wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Advertising Agencies

38. Alliance Pharma plc

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

39. Ceres Power Holdings plc

Company Profile: Ceres Power Holdings plc
Market Cap (USD): $412.1 M
Stock: CWR wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Electrical Equipment & Parts

40. Midwich Group plc

Company Profile: Midwich Group plc
Market Cap (USD): $368.8 M
Stock: MIDW wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Electronics & Computer Distribution

41. Central Asia Metals plc

Company Profile: Central Asia Metals plc
Market Cap (USD): $346.2 M
Stock: CAML wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Copper

42. Impax Asset Management Group plc

Company Profile: Impax Asset Management Group plc
Market Cap (USD): $331.1 M
Stock: IPX wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

43. dotdigital Group plc

Company Profile: dotdigital Group plc
Market Cap (USD): $315.8 M
Stock: DOTD wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

44. ITM Power plc

Company Profile: ITM Power plc
Market Cap (USD): $283.6 M
Stock: ITM wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Electronic Components

45. Knights Group Holdings plc

Company Profile: Knights Group Holdings plc
Market Cap (USD): $154.2 M (July 1, 2024)
Stock: KGH wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Specialty Business Services

46. Gooch & Housego plc

Company Profile: Gooch & Housego plc
Market Cap (USD): $152.9 M
Stock: GHH wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Electronic Components

47. IQE plc

Company Profile: IQE plc
Market Cap (USD): $149.5 M
Stock: IQE wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Semiconductor Equipment & Materials

48. Frontier Developments plc

Company Profile: Frontier Developments plc
Market Cap (USD): $110.0 M
Stock: FDEV wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Electronic Gaming & Multimedia

49. iomart Group plc

Company Profile: iomart Group plc
Market Cap (USD): $102.8 M
Stock: IOM wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Infrastructure

50. 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

51. Scapa Group plc

Company Profile: Scapa Group plc
Stock: SCPA wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Specialty Chemicals

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