About Holistic Security
Built by practitioners. Trusted by those who cannot afford to be wrong.
We are a specialist cybersecurity consultancy founded by offensive and defensive security practitioners with decades of combined experience across financial services, critical infrastructure, and regulated industries.
15+
Years combined experience
200+
Engagements delivered
40+
Clients across 8 sectors
100%
Senior-led delivery
Our story
Our story
Holistic Security was founded on a simple conviction: most security consultancies sell compliance theatre. We were built to do something different — to provide the kind of adversarial rigour and strategic depth that organisations facing real threats actually need.
Our founders came from operational backgrounds — red teams, incident response, and security architecture inside some of the most targeted organisations in the world. We saw first-hand how generic assessments and checkbox audits left clients with a false sense of security.
Every engagement we run is led by a senior practitioner. We do not use junior consultants to deliver work sold by partners. The person who scopes your engagement is the person who executes it — and the person who stands behind the findings.
Our principles
What we stand for
Four principles that govern every engagement we take on.
Practitioner-led
Every engagement is led and delivered by senior practitioners. No juniors, no outsourcing, no exceptions.
Adversarial rigour
We test the way real adversaries attack — not the way compliance frameworks assume they do.
Radical transparency
We tell clients what they need to hear, not what they want to hear. Findings are never softened to protect relationships.
Outcome-focused
A finding without a clear remediation path is noise. Every report we produce is actionable from day one.
8+
Industry certifications held
Credentials
Certifications & accreditations
Our consultants hold the industry's most rigorous technical certifications — not just vendor qualifications.
CREST CRT
CREST
Certified Registered Tester — the benchmark for infrastructure penetration testing
CREST CCT
CREST
Certified Cyber Intrusion Analyst — advanced web application and infrastructure testing
OSCP
Offensive Security
Offensive Security Certified Professional — hands-on exploitation and post-exploitation
CISSP
ISC²
Certified Information Systems Security Professional — strategic security management
CISM
ISACA
Certified Information Security Manager — governance and risk management
ISO 27001 LA
IRCA
Lead Auditor — ISMS design, implementation, and audit
Cyber Essentials
IASME / NCSC
Cyber Essentials Assessor — NCSC-backed scheme for baseline cyber hygiene certification
GCIA / GCIH
GIAC
Intrusion analysis and incident handling — defensive operations
Work with practitioners who have been in the trenches.
If you need a security partner who will tell you the truth about your risk — not just what you want to hear — let's talk.