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Security Software

Top Security Software companies in United Kingdom - May, 2026

Listed below are the top companies in United Kingdom by revenue as of May 2026. With $1.2B in revenue, Sophos is ranked first on the list, followed by Mimecast with $674.4M in revenue and Darktrace with $500M in revenue. Find additional information about companies in United Kingdom such as their contact details, employees, location, org chart, news and much more.

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- Sophos
- Security Software , Software
- Abingdon, Oxfordshire, United Kingdom
- $1.2B
- 5K - 10K
- Mimecast
- Security Software , Software , Storage & System Management Software
- London, Greater London, United Kingdom
- $674.4M
- 1K - 5K
- Darktrace
- Security Software , Software
- Cambridge, Cambridgeshire, United Kingdom
- $500M
- 1K - 5K
- GB Group PLC
- Security Software , Software , Customer Engagement Platforms
- Chester, Cheshire, United Kingdom
- $379.6M
- 1K - 5K
- Clario Tech
- Security Software , Software
- London, Greater London, United Kingdom
- $283M
- 501-1,000
- Kape
- Security Software , Software
- London, Greater London, United Kingdom
- $252.1M
- 1K - 5K
- Kureha Europe
- Security Software , Software
- Kingston Upon Hull, United Kingdom
- $178.5M
- 501-1,000
- Immersive
- Security Software , Software , Education | 1 More
- Bristol, Bristol, United Kingdom
- $146.2M
- 501-1,000
- Hornetsecurity
- Security Software , Software
- London, Greater London, United Kingdom
- $107.3M
- 501-1,000
- SumSub
- Security Software , Software , Business Services | 1 More
- London, Greater London, United Kingdom
- $94.5M
- 201-500

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