Aristi logo

Aristi

CHECK and CREST-accredited Birmingham-based cyber security consultancy with over 15 years of experience delivering penetration testing, red teaming, and OT security assessments for government and private sector clients.

Featured in: Best CREST Pen Testing Companies

Founded
2008
Team Size
11-50
Geography
National
Markets
UK
Last verified: Sept 2026

Key facts

  • Holds CREST, CHECK, ISO 27001, Cyber Essentials, Cyber Essentials Plus, and NCSC Assured accreditations.
  • Founded in 2008.
  • Headquartered in Birmingham, United Kingdom.
  • Team of 11-50 security professionals.
  • Delivers 11 penetration testing services.
  • Serves clients in the UK.
  • Specialises in Adversary Simulation, OT/ICS Security, and Payment Security.
  • Compliance expertise across ISO 27001, GDPR, Cyber Essentials, PCI DSS, and NIS 2.

About

Aristi is a Birmingham, West Midlands-headquartered penetration testing and cyber security consultancy founded in 2008, with dual CHECK and CREST accreditations. With over 15 years of experience supporting clients across both public and private sectors, all of their cyber security testers are full-time UK-based employees who hold SC and NPPV3 security clearance, enabling them to work on the most sensitive government and critical national infrastructure projects.

Accreditations

CRESTCHECKISO 27001Cyber EssentialsCyber Essentials PlusNCSC Assured
SECFORCE logo

SECFORCE

CBEST-approved, threat-led red teaming for UK financial services.

  • Holds CREST, CBEST, STAR, ISO 27001, ISO 9001, and Cyber Essentials accreditations.
  • In business since 2008 (Companies House 06488355); CREST-accredited for penetration testing since 2011.
CRESTCBESTSTARISO 27001
View SECFORCE

Methodologies

OWASPCRESTNISTCBEST

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