Best Cybersecurity Consulting Services in the UK

United Kingdom Cybersecurity Consultants

When it comes to protecting digital assets, few things matter more than partnering with the right cybersecurity experts. In today’s climate of relentless cyber threats and shifting compliance demands, UK businesses from innovative SaaS startups to large industrial groups increasingly rely on outsourced, fractional, and virtual cybersecurity consultancies.

What sets these firms apart? Beyond advanced frameworks and certifications, the standouts you’ll find below deliver real-world results, verifiable client wins, and leadership rooted in the UK’s vibrant tech and security ecosystem. Whether you’re seeking risk mitigation, penetration testing, incident response, or full-stack cyber strategy, this curated list highlights firms known for radical transparency, measurable ROI, and deep local expertise.

Methodology: How We Chose These UK-based Cybersecurity Consulting Services

✅ Our selection process is designed for radical transparency:

🔍 Research-driven: We verify clear evidence, public case studies, published frameworks, or documented client results.

⭐ Client-reviewed: We check for authentic testimonials, real ROI stories, and word-of-mouth credibility.

🏠 Location-based: Every company on this list is genuinely UK-rooted, with a founder actively leading the charge.

🌟 UK Cybersecurity Consultants - Provider Spotlights

Spear Shield

What they do:
Spear Shield tackles end-to-end cybersecurity risk mitigation specialising in proactive threat intelligence, incident response, and cyber resilience training for regulated sectors like finance and healthcare.

Who they work with:
Financial services firms, healthcare providers, and regulated SaaS scale-ups.

Operating model:
Spear Shield blends outsourced risk advisory with on-call incident response, giving clients flexible protection without big overheads.

💡 Why they stand out:

• 🔒 Proprietary threat intelligence frameworks that adapt to changing ransomware tactics.
  
  
• ⚡ Real-time incident mitigation teams with published recovery time benchmarks.
  
  
• 📊 Deep sector specialisation for regulated UK industries proven GDPR and FCA compliance support.

Max Harper, Co-Founder & CEO of Spear Shield

Max Harper is an industry-recognised risk strategist with 15+ years in penetration testing and threat intelligence for Tier 1 banks. He’s known for translating complex risks into clear, board-ready actions and for building tight-knit response teams trusted by finance CIOs across London.

Rocky Leek, Co-Founder, Owner & Director of Spear Shied

Rocky Leek oversees delivery of advanced cyber-risk mitigation services across sectors and scales. With a defense-in-depth approach and more than 30 years of combined team experience, Rocky helps clients build tailored, resilient cybersecurity strategies that translate complex threats into clear, business-aligned actions.

SecuraNova

What they do:
SecuraNova offers outsourced cybersecurity architecture, ethical hacking, and CISO-as-a-Service for UK tech startups and mid-sized firms scaling fast.

Who they work with:
High-growth SaaS and DTC tech companies needing robust frameworks without a full in-house security team.

Operating model:
Fractional virtual CISO support embedding senior talent while staying cost-flexible.

💡 Why they stand out:

• 🧩 Modular cybersecurity programs that evolve with startup growth stages.
  
  
• 🕵️‍♂️ Red team/blue team simulations tailored for SaaS attack surfaces.
  
  
• 🔄 Clear upgrade pathways clients scale from part-time CISO to full-stack security as they grow.

Nathan Jones, Co-Founder & CEO of SecuraNova

Nathan Jones built SecuraNova after a decade designing threat models for fast-scaling fintech companies. He’s a vocal advocate for startup-ready security roadmaps making enterprise-grade protection realistic for smaller UK tech firms.

Ian Matthews, Co-Founder & CPO of SecuraNova

Ian Matthews has over 20 years of experience across GCHQ, Synack, and the private sector, he delivers security strategies that blend technical precision with practical business outcomes.

evacy.eu

What they do:
Evacy delivers managed cybersecurity and GDPR compliance advisory, with a strong European privacy law angle.

Who they work with:
SMEs, professional services, and EU-facing e-commerce firms.

Operating model:
Virtual privacy and security team combining audit, compliance, and technical security fixes under one umbrella.

💡 Why they stand out:

• 🇪🇺 Trusted GDPR and EU data transfer expertise critical for cross-border clients.
  
  
• 🔍 White-hat ethical hacking paired with privacy-first remediation.
  
  
• 🎯 Published frameworks for secure DevOps pipelines.

Nicholas W. O., Founder & Director of evacy.eu

Nicholas W. O. is an experienced privacy consultant turned cybersecurity lead, with a legal-tech background. He’s known for bridging IT and compliance making Evacy a go-to for UK firms handling European data transfers.

Oryx Cyber

What they do:
Oryx Cyber focuses on proactive threat hunting, vulnerability assessments, and managed SOC (Security Operations Centre) services.

Who they work with:
Industrial, logistics, and critical infrastructure operators across the UK.

Operating model:
Hybrid on-site and remote teams blending fractional threat hunting with 24/7 SOC coverage.

💡 Why they stand out:

• 🔭 Advanced threat hunting tech paired with UK-based analysts.
  
  
• 🛡️ Industrial OT security specialists proven track record securing ICS environments.
  
  
• 🗂️ Transparent reporting frameworks for executive and regulator readiness.

Grant Jackson, Founder & Managing Director of Oryx Cyber

Grant Jackson is a career SOC architect and industrial security consultant. He’s built cyber defence playbooks for energy plants and critical transport systems earning Oryx Cyber trust across the UK’s essential infrastructure sector.

Rougemont Security

What they do:
Rougemont Security delivers boutique, high-touch cybersecurity audits and crisis response for corporate boards and family offices.

Who they work with:
HNWIs, legal firms, and boutique investment managers.

Operating model:
Confidential, discrete, and often onsite with direct boardroom advisory.

💡 Why they stand out:

• 🕵️‍♀️ Deep forensic investigation experience digital crime scene experts.
  
  
• 🗝️ Trusted by discreet UK clients for post-breach crisis management.
  
  
• 📜 Published best practices for board-level cyber literacy.

Chris Cooper, Founder of Rougemont Security

Chris Cooper is a veteran investigator and digital forensics lead with decades spent securing law firms and private equity offices. His style is hands-on and discreet, trusted by sensitive clients who value confidentiality above all.

Cyber Tech Guardians

What they do:
This consultancy provides all-in-one managed security services, ransomware response, and small business cyber insurance advisory.

Who they work with:
UK SMEs, local councils, and retail chains.

Operating model:
Affordable, outsourced security-as-a-service plug-and-play for businesses that can’t hire a full-time team.

💡 Why they stand out:

• 🧩 Bundled cybersecurity and insurance risk advisory.
  
  
• 🔄 Real-time ransomware rollback solutions.
  
  
• 💼 Flexible contracts monthly or project-based.

Omar B., Founder & CEO of Cyber Tech Guardians

Omar B. brings a practical approach to cybersecurity for small businesses. With a background in SME tech support, he knows how to deliver enterprise-level protection in a budget-friendly package.

Emergent Consulting

What they do:
Emergent is known for proactive risk audits, policy development, and executive training for mid-market firms.

Who they work with:
Professional services, charities, and local government.

Operating model:
Outsourced policy and training arm focusing on building internal security cultures.

💡 Why they stand out:

• 🗣️ Effective board-level training workshops.
  
  
• 📘 Fully tailored security policies.
  
  
• 🔍 Proven frameworks for staff cyber awareness.

Satpal Dhaliwal, Founder & CEO of Emergent Consulting

Satpal Dhaliwal is a seasoned risk consultant and trainer. He’s known for demystifying cybersecurity for non-technical boards empowering teams to own security from the inside out.

ACA Tech Solutions

What they do:
ACA Tech delivers full-stack security architecture and managed IT infrastructure with a cyber-first approach.

Who they work with:
Multi-site retailers, healthcare chains, and franchise businesses.

Operating model:
Hybrid managed IT plus dedicated cybersecurity frameworks.

💡 Why they stand out:

• 🧰 Integrated IT and security, no silos.
  
  
• 🗂️ Specialised in multi-location businesses with complex endpoints.
  
  
• ⚙️ Documented rapid recovery SLAs.

Alfred Collins Ayamba, Founder, CEO & CTO of ACA Tech Solutions

Alfred Collins Ayamba built ACA Tech Solutions on the principle that IT and cybersecurity shouldn’t be separate silos. His teams deliver unified solutions that scale securely.

GVX Consulting

What they do:
GVX provides CISO advisory and penetration testing for scale-ups and family-run manufacturing firms.

Who they work with:
UK-based manufacturers, logistics providers, and growing B2B SaaS.

Operating model:
Part-time CISO services plus quarterly risk reviews.

💡 Why they stand out:

• 🔬 Tailored pen-testing roadmaps.
  
  
• 🧩 Modular contracts for family businesses scaling operations.
  
  
• 🏭 Proven SME supply chain security upgrades.

Teddy Theanne, Founder & CEO of GVX Consulting

Teddy Theanne is a supply chain risk expert and fractional CISO. His reputation is built on making complex security clear for family-led manufacturing firms.

IT Empathy®

What they do:
IT Empathy® delivers human-centric cybersecurity audits and awareness programs putting people first in security culture.

Who they work with:
Charities, non-profits, and mission-driven SMEs.

Operating model:
Outsourced security awareness and people-focused threat mitigation.

💡 Why they stand out:

• 🧑‍🤝‍🧑 Empathy-led training that sticks.
  
  
• 📑 Clear frameworks for social engineering defence.
  
  
• 🌱 Non-profit sector specialists.

Jon Bailey, Founder & Managing Director of IT Empathy®

Jon Bailey is a people-first IT strategist, known for building cultures of security where traditional tech fixes aren’t enough. He makes cybersecurity accessible especially for mission-driven organisations.

A New Era of Cybersecurity Consulting: Tailored, Agile, and Trusted

Across the UK, a new generation of cybersecurity consultancies is redefining what trusted protection looks like, tailored, agile, and deeply aligned with client realities. From spearheading ransomware responses for financial institutions to embedding security culture in nonprofits, these firms offer more than just technical fixes, they deliver strategic, scalable solutions. Whether through fractional CISOs, on-call incident teams, or GDPR-informed privacy roadmaps, each consultancy brings niche expertise grounded in real-world impact. Founder-led and highly specialized, they cater to a wide range of sectors including finance, tech, healthcare, manufacturing, and the public sector. What unites them is a commitment to clarity, resilience, and long-term client trust in an era of evolving digital threats.

At Digital Reference, radical authenticity means spotlighting cybersecurity partners who prioritize clarity over jargon, and scalable strategy over superficial patchwork. It’s a value-driven lens that aligns protection with purpose ensuring leaders choose with confidence and act with conviction.

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When navigating complex cyber risks, let trusted insight be your competitive edge only at Digital Reference.