United Kingdom

Top 142 largest UK Companies in the Technology sector by Market Cap

This is the list of the largest public listed companies in the Technology sector from the United Kingdom by market capitalization with links to their reference stock and industry.

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Top Technology Companies from the United Kingdom as of Jan. 01, 2026

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Rank Company Market Cap (USD) Country Sector Industry
91 TPXimpact Holdings PLC $27.4 M United Kingdom UK Technology UK Information Technology Services
92 iomart Group plc $26.7 M United Kingdom UK Technology UK Software—Infrastructure
93 Smartspace Software plc $25.8 M

(Jan. 1, 2024)

 United Kingdom UK Technology UK Software—Application
94 Ingenta plc $22.2 M United Kingdom UK Technology UK Software—Application
95 Altitude Group plc $20.7 M United Kingdom UK Technology UK Software—Application
96 Nanoco Group plc $19.2 M United Kingdom UK Technology UK Semiconductor Equipment & Materials
97 SysGroup plc $18.0 M United Kingdom UK Technology UK Software—Infrastructure
98 Starcom plc $16.7 M United Kingdom UK Technology UK Scientific & Technical Instruments
99 Arcontech Group plc $15.2 M United Kingdom UK Technology UK Software—Application
100 Blackbird plc $15.2 M United Kingdom UK Technology UK Software—Application
101 Shearwater Group plc $14.3 M United Kingdom UK Technology UK Software—Infrastructure
102 ZOO Digital Group plc $13.2 M United Kingdom UK Technology UK Software—Application
103 Pennant International Group plc $12.8 M United Kingdom UK Technology UK Software—Application
104 essensys plc $12.6 M United Kingdom UK Technology UK Software—Application
105 Cornerstone FS plc $11.3 M United Kingdom UK Technology UK Information Technology Services
106 The Vitec Group plc $7.3 M United Kingdom UK Technology UK Consumer Electronics
107 Crimson Tide plc $6.9 M United Kingdom UK Technology UK Software—Application
108 Zytronic plc $6.7 M

(Jan. 1, 2025)

 United Kingdom UK Technology UK Electronic Components
109 Touchstar plc $6.5 M United Kingdom UK Technology UK Computer Hardware
110 Tern plc $6.3 M United Kingdom UK Technology UK Software—Application
111 Trakm8 Holdings plc $6.3 M

(July 1, 2025)

 United Kingdom UK Technology UK Scientific & Technical Instruments
112 GRC International Group plc $5.8 M

(Jan. 1, 2024)

 United Kingdom UK Technology UK Information Technology Services
113 Catenae Innovation plc $4.6 M United Kingdom UK Technology UK Software—Infrastructure
114 Rosslyn Data Technologies plc $3.3 M United Kingdom UK Technology UK Software—Application
115 Biome Technologies plc $2.2 M

(Jan. 1, 2025)

 United Kingdom UK Technology UK Electronic Components
116 CloudCoCo Group plc $1.4 M United Kingdom UK Technology UK Software—Infrastructure
117 i-nexus Global plc $1.3 M

(Jan. 1, 2024)

 United Kingdom UK Technology UK Software—Application
118 PipeHawk plc $952,976 United Kingdom UK Technology UK Scientific & Technical Instruments
119 Maintel Holdings plc $260,928 United Kingdom UK Technology UK Communication Equipment
120 Dillistone Group plc $23,356 United Kingdom UK Technology UK Software—Application

Top Technology Companies from the United Kingdom as of Jan. 01, 2026

91. TPXimpact Holdings PLC

Company Profile: TPXimpact Holdings PLC
Market Cap (USD): $27.4 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Information Technology Services

92. iomart Group plc

Company Profile: iomart Group plc
Market Cap (USD): $26.7 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Infrastructure

93. Smartspace Software plc

Company Profile: Smartspace Software plc
Market Cap (USD): $25.8 M (Jan. 1, 2024)
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

94. Ingenta plc

Company Profile: Ingenta plc
Market Cap (USD): $22.2 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

95. Altitude Group plc

Company Profile: Altitude Group plc
Market Cap (USD): $20.7 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

96. Nanoco Group plc

Company Profile: Nanoco Group plc
Market Cap (USD): $19.2 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Semiconductor Equipment & Materials

97. SysGroup plc

Company Profile: SysGroup plc
Market Cap (USD): $18.0 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Infrastructure

98. Starcom plc

Company Profile: Starcom plc
Market Cap (USD): $16.7 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Scientific & Technical Instruments

99. Arcontech Group plc

Company Profile: Arcontech Group plc
Market Cap (USD): $15.2 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

100. Blackbird plc

Company Profile: Blackbird plc
Market Cap (USD): $15.2 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

101. Shearwater Group plc

Company Profile: Shearwater Group plc
Market Cap (USD): $14.3 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Infrastructure

102. ZOO Digital Group plc

Company Profile: ZOO Digital Group plc
Market Cap (USD): $13.2 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

103. Pennant International Group plc

Company Profile: Pennant International Group plc
Market Cap (USD): $12.8 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

104. essensys plc

Company Profile: essensys plc
Market Cap (USD): $12.6 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

105. Cornerstone FS plc

Company Profile: Cornerstone FS plc
Market Cap (USD): $11.3 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Information Technology Services

106. The Vitec Group plc

Company Profile: The Vitec Group plc
Market Cap (USD): $7.3 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Consumer Electronics

107. Crimson Tide plc

Company Profile: Crimson Tide plc
Market Cap (USD): $6.9 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

108. Zytronic plc

Company Profile: Zytronic plc
Market Cap (USD): $6.7 M (Jan. 1, 2025)
Country: United Kingdom
Sector: UK Technology
Industry: UK Electronic Components

109. Touchstar plc

Company Profile: Touchstar plc
Market Cap (USD): $6.5 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Computer Hardware

110. Tern plc

Company Profile: Tern plc
Market Cap (USD): $6.3 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

111. Trakm8 Holdings plc

Company Profile: Trakm8 Holdings plc
Market Cap (USD): $6.3 M (July 1, 2025)
Country: United Kingdom
Sector: UK Technology
Industry: UK Scientific & Technical Instruments

112. GRC International Group plc

Company Profile: GRC International Group plc
Market Cap (USD): $5.8 M (Jan. 1, 2024)
Country: United Kingdom
Sector: UK Technology
Industry: UK Information Technology Services

113. Catenae Innovation plc

Company Profile: Catenae Innovation plc
Market Cap (USD): $4.6 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Infrastructure

114. Rosslyn Data Technologies plc

Company Profile: Rosslyn Data Technologies plc
Market Cap (USD): $3.3 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

115. Biome Technologies plc

Company Profile: Biome Technologies plc
Market Cap (USD): $2.2 M (Jan. 1, 2025)
Country: United Kingdom
Sector: UK Technology
Industry: UK Electronic Components

116. CloudCoCo Group plc

Company Profile: CloudCoCo Group plc
Market Cap (USD): $1.4 M
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Infrastructure

117. i-nexus Global plc

Company Profile: i-nexus Global plc
Market Cap (USD): $1.3 M (Jan. 1, 2024)
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

118. PipeHawk plc

Company Profile: PipeHawk plc
Market Cap (USD): $952,976
Country: United Kingdom
Sector: UK Technology
Industry: UK Scientific & Technical Instruments

119. Maintel Holdings plc

Company Profile: Maintel Holdings plc
Market Cap (USD): $260,928
Country: United Kingdom
Sector: UK Technology
Industry: UK Communication Equipment

120. Dillistone Group plc

Company Profile: Dillistone Group plc
Market Cap (USD): $23,356
Country: United Kingdom
Sector: UK Technology
Industry: UK Software—Application

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