Precursor Security

Founded in 2018, Precursor Security is a cybersecurity company based in Leeds, United Kingdom working in penetration testing, offensive security, managed security +7 more.

Precursor Security is a UK cyber security firm founded in 2018 and headquartered in Leeds, West Yorkshire. It delivers offensive security services, including penetration testing, red team operations, social engineering, and vulnerability assessments, alongside defensive services such as a 24/7 managed SOC, managed detection and response, threat hunting, and incident response. It also provides compliance services covering ISO 27001, Cyber Essentials, PCI DSS, GDPR, and CSRB 2025 readiness. The company holds CREST accreditation for penetration testing, vulnerability assessment, and Security Operations Centre services. Its SOC operates from Newcastle with UK-based, DBS-checked analysts. The company states that its SOC threat intelligence feeds into its penetration testing methodology. It is listed on the UK Government G-Cloud 14 framework.