Semantics 21
Semantics 21 Ltd
Stafford, Staffordshire, United Kingdom
About
Semantics 21 is a cybersecurity company based in Stafford, United Kingdom working in digital forensics.
Semantics 21 is a UK-based digital forensics technology company that develops AI-powered tools for analysing digital evidence and supporting victim identification. Its products cover CSAM and ICAC categorisation, CCTV review and enhancement, audio transcription, deepfake and synthetic media detection, and image description. The company also operates the S21 Global Alliance Database, a law-enforcement-contributed intelligence database. Its tools are used by law enforcement, military and investigative teams, and the company offers training through its S21 Passport and Spotlight programmes. Semantics 21 states that its tools are designed to run offline or without cloud upload to support secure investigative environments.
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Products
S21 LASERi-X
Digital forensics
Digital forensics tool for multi-disk imaging, data carving, analysis and media review.
S21 CCTV
Digital forensics
AI-enhanced CCTV review, enhancement and reporting for frontline teams and forensic labs.
S21 Global Alliance Database
Threat intelligence database
Database of law-enforcement-contributed intelligence records supporting victim identification and cross-case analysis.
S21 VisionX
AI image and video analysis
AI tool for surfacing relevant material, categorisation and prioritisation in high-volume image and video investigations.
S21 School Badge Lookup
Image analysis
Identifies schools from visible badge details in images and video.
S21 Deepfake Detector
Media authenticity
Detects manipulated and synthetic imagery to support authenticity assessment.
S21 AI Describe
AI image description
Generates automated descriptions of imagery for investigative understanding, run without sending material outside the user's environment.
S21 AutomateX
Forensic automation
Automation tooling for CSAM categorisation and forensic workflows.
S21 Transcriber
Audio transcription
Offline transcription of interviews, calls and recordings for secure review.
S21 Discovery
Investigation platform
Platform used alongside S21 VisionX for access to S21 tools and authorised environments.
S21 Investigator Wellbeing
Wellbeing monitoring
Monitors investigator exposure to sensitive material and generates wellbeing reports.
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Management & team (3)
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