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FTSE AIM 100
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Top FTSE AIM 100 Companies by Market Cap and Stocks in 2025

This is the list of the largest public listed companies in the FTSE AIM 100 index ranked by market capitalization, together with links to their reference stock, sector and industry.

FTSE AIM 100 Chart & Analysis

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Top FTSE AIM 100 Companies Ranking by Market Cap as of Jan. 1, 2025

Ranking Company Stock Market Cap (USD) Country Sector Industry
61 Next Fifteen Communications Group plc NFC wb_incandescent $426.5 M United Kingdom UK Communication Services UK Advertising Agencies
62 Alliance Pharma plc APH wb_incandescent $413.8 M United Kingdom UK Healthcare UK Drug Manufacturers—Specialty & Generic
63 Ceres Power Holdings plc CWR wb_incandescent $412.1 M United Kingdom UK Industrials UK Electrical Equipment & Parts
64 Team17 Group plc TM17 wb_incandescent $408.4 M United Kingdom UK Communication Services UK Electronic Gaming & Multimedia
65 Restore plc RST wb_incandescent $378.6 M United Kingdom UK Industrials UK Specialty Business Services
66 Midwich Group plc MIDW wb_incandescent $368.8 M United Kingdom UK Technology UK Electronics & Computer Distribution
67 Tremor International Ltd TRMR wb_incandescent $357.8 M

(Jan. 1, 2024)

 Israel Israeli Communication Services Israeli Advertising Agencies
68 Central Asia Metals plc CAML wb_incandescent $346.2 M United Kingdom UK Basic Materials UK Copper
69 Impax Asset Management Group plc IPX wb_incandescent $331.1 M United Kingdom UK Financials UK Asset Management
70 Marlowe plc MRL wb_incandescent $329.9 M United Kingdom UK Industrials UK Security & Protection Services
71 dotdigital Group plc DOTD wb_incandescent $315.8 M United Kingdom UK Technology UK Software—Application
72 Brooks Macdonald Group plc BRK wb_incandescent $305.5 M United Kingdom UK Financials UK Asset Management
73 ITM Power plc ITM wb_incandescent $283.6 M United Kingdom UK Technology UK Electronic Components
74 Benchmark Holdings plc BMK wb_incandescent $276.9 M United Kingdom UK Healthcare UK Drug Manufacturers—Specialty & Generic
75 Andrews Sykes Group plc ASY wb_incandescent $271.3 M United Kingdom UK Industrials UK Rental & Leasing Services
76 Avacta Group plc AVCT wb_incandescent $224.3 M United Kingdom UK Healthcare UK Biotechnology
77 Bioventix plc BVXP wb_incandescent $204.4 M United Kingdom UK Healthcare UK Biotechnology
78 Victoria plc VCP wb_incandescent $187.4 M United Kingdom UK Consumer Discretionary UK Furnishings, Fixtures & Appliances
79 Jadestone Energy Inc. JSE wb_incandescent $182.5 M Singapore Singaporean Energy Singaporean Oil & Gas E&P
80 Focusrite plc TUNE wb_incandescent $164.6 M United Kingdom UK Consumer Discretionary UK Leisure
81 Knights Group Holdings plc KGH wb_incandescent $154.2 M

(July 1, 2024)

 United Kingdom UK Industrials UK Specialty Business Services
82 Gooch & Housego plc GHH wb_incandescent $152.9 M United Kingdom UK Technology UK Electronic Components
83 IQE plc IQE wb_incandescent $149.5 M United Kingdom UK Technology UK Semiconductor Equipment & Materials
84 Strix Group plc KETL wb_incandescent $131.9 M United Kingdom UK Technology UK Electronic Components
85 Frontier Developments plc FDEV wb_incandescent $110.0 M United Kingdom UK Communication Services UK Electronic Gaming & Multimedia
86 iomart Group plc IOM wb_incandescent $102.8 M United Kingdom UK Technology UK Software—Infrastructure
87 Creo Medical Limited CREO wb_incandescent $98.0 M United Kingdom UK Healthcare UK Medical Devices
88 Eurasia Mining plc EUA wb_incandescent $96.3 M United Kingdom UK Basic Materials UK Other Precious Metals & Mining
89 IG Design Group plc IGR wb_incandescent $70.5 M United Kingdom UK Consumer Discretionary UK Specialty Retail
90 Watkin Jones plc WJG wb_incandescent $64.5 M United Kingdom UK Consumer Discretionary UK Residential Construction

Top FTSE AIM 100 Companies Ranking by Market Cap as of Jan. 1, 2025

61. 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

62. 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

63. 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

64. Team17 Group plc

Company Profile: Team17 Group plc
Market Cap (USD): $408.4 M
Stock: TM17 wb_incandescent
Country: United Kingdom
Sector: UK Communication Services
Industry: UK Electronic Gaming & Multimedia

65. Restore plc

Company Profile: Restore plc
Market Cap (USD): $378.6 M
Stock: RST wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Specialty Business Services

66. 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

67. Tremor International Ltd

Company Profile: Tremor International Ltd
Market Cap (USD): $357.8 M (Jan. 1, 2024)
Stock: TRMR wb_incandescent
Country: Israel
Sector: Israeli Communication Services
Industry: Israeli Advertising Agencies

68. 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

69. 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

70. Marlowe plc

Company Profile: Marlowe plc
Market Cap (USD): $329.9 M
Stock: MRL wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Security & Protection Services

71. 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

72. Brooks Macdonald Group plc

Company Profile: Brooks Macdonald Group plc
Market Cap (USD): $305.5 M
Stock: BRK wb_incandescent
Country: United Kingdom
Sector: UK Financials
Industry: UK Asset Management

73. 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

74. Benchmark Holdings plc

Company Profile: Benchmark Holdings plc
Market Cap (USD): $276.9 M
Stock: BMK wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Drug Manufacturers—Specialty & Generic

75. Andrews Sykes Group plc

Company Profile: Andrews Sykes Group plc
Market Cap (USD): $271.3 M
Stock: ASY wb_incandescent
Country: United Kingdom
Sector: UK Industrials
Industry: UK Rental & Leasing Services

76. Avacta Group plc

Company Profile: Avacta Group plc
Market Cap (USD): $224.3 M
Stock: AVCT wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

77. Bioventix plc

Company Profile: Bioventix plc
Market Cap (USD): $204.4 M
Stock: BVXP wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Biotechnology

78. Victoria plc

Company Profile: Victoria plc
Market Cap (USD): $187.4 M
Stock: VCP wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Furnishings, Fixtures & Appliances

79. Jadestone Energy Inc.

Company Profile: Jadestone Energy Inc.
Market Cap (USD): $182.5 M
Stock: JSE wb_incandescent
Country: Singapore
Sector: Singaporean Energy
Industry: Singaporean Oil & Gas E&P

80. Focusrite plc

Company Profile: Focusrite plc
Market Cap (USD): $164.6 M
Stock: TUNE wb_incandescent
Country: United Kingdom
Sector: UK Consumer Discretionary
Industry: UK Leisure

81. 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

82. 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

83. 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

84. Strix Group plc

Company Profile: Strix Group plc
Market Cap (USD): $131.9 M
Stock: KETL wb_incandescent
Country: United Kingdom
Sector: UK Technology
Industry: UK Electronic Components

85. 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

86. 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

87. Creo Medical Limited

Company Profile: Creo Medical Limited
Market Cap (USD): $98.0 M
Stock: CREO wb_incandescent
Country: United Kingdom
Sector: UK Healthcare
Industry: UK Medical Devices

88. Eurasia Mining plc

Company Profile: Eurasia Mining plc
Market Cap (USD): $96.3 M
Stock: EUA wb_incandescent
Country: United Kingdom
Sector: UK Basic Materials
Industry: UK Other Precious Metals & Mining

89. 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

90. 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

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