An enterprise wide perspective on

cybersecurity

Protect your data with Dionach

25 YEARS EXPERIENCE OF CYBERSECURITY SERVICES!

Our team has a long track record of successful engagements over a wide range of cybersecurity areas for companies.

“There are risks and costs to a program of action – but they are far less than the long range cost of comfortable inaction”

– John F. Kennedy

Dionach is now part of Nomios, a recognised leader in cybersecurity and networking across Europe. Together, we offer a full suite of services, including SOC, NOC, and security assurance.

Real Security in a Virtual World

As your cyber security partner, we help organisations protect their digital assets, ensuring regulatory compliance and respond to security incidents effectively.

Assurance

Information security assurance through penetration testing and social engineering.

Compliance

Dionach helps organisations meet compliance requirements for standards such as PCI DSS, ISO 27001 and Cyber Essentials.

Response

We help many organisations through understanding and limiting breaches, and mitigating the risk of potential future breaches.

Healthcare

Dionach helped develop cybersecurity programmes with NHS Digital to understand and improve the security posture of NHS Trusts.

Over 350 public and private sector clients worldwide

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Over 2000 penetration tests conducted every year

1900

Over 50 highly qualified, experienced consultants

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Our Accredited Badges

BECOMING AN EXPERT IN CYBER SECURITY!

Protect Your Business and Reputation with Expert Cyber Security Consultancy Services

Dionach have a highly skilled team of experts who specialise in identifying and mitigating cyber security risks. We have extensive knowledge and experience in developing effective cyber security strategies, assurance testing and managing security incidents.

Reduce cost & risk

Fewer incidents mean less disruption for your employees and customers.

Increase security

Transform your security operations team with less investment and overhead.

Respond fast

Find and resolve threats sooner, measure your progress over time.

Build cyber culture

A strong cyber security culture can foster trust and open communication among team members, leading to better collaboration.

Industry Sectors

Dionach works with clients in a variety of industries to ensure they have the right IT and OT security controls and help them identify potential vulnerabilities.

Access to Expert Knowledge

Dionach will work with you to understand your unique business requirements and tailor our solutions and services to meet your specific needs. We can help you identify and prioritise your cyber security risks and develop a customised security plan that addresses those risks.

Risk Mitigation

Cyber risk mitigation is a critical component of a comprehensive cyber security program, and it helps organisations to make informed decisions about where to allocate resources and how to prioritise security initiatives.

Actions for each incident

A well-defined incident response plan (IRP) allows to effectively identify, minimise the damage from, and reduce the cost of a cyber attack so that you can prevent future attacks.

Performance metrics

Performance metrics provide organisations with valuable insights into the effectiveness of their cyber security measures and help them to make informed decisions to enhance their security posture.

Threat intelligence

Threat intelligence helps organisations anticipate and prevent cyber attacks by analysing the tactics, techniques, and motivations of threat actors, and assessing the potential impact of an attack.

Discover Our Latest Research

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Data Security and Protection Toolkit (DSPT) 2025/2026 CAF

The new DSPT for 2025/2026 is now more closely aligned to the NCSC Cyber Assessment Framework (CAF). This means more outcome-based auditing, focused on how well organisations achieve the intended security and governance goals. Organisations are required to have an independent audit assessment to the agreed CAF-aligned DSPT audit framework. Dionach can provide these independent […]

ISO 27001

From Policy to Practice: Penetration Testing for ISO 27001

ISO 27001:2022 is the international standard for establishing, implementing, maintaining, and continually improving an Information Security Management System (ISMS). While the standard does not explicitly mandate penetration testing, it remains a critical supporting activity for demonstrating technical assurance and verifying the effectiveness of security controls. By incorporating regular, scoped, and risk-aligned penetration testing into their […]

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ISO 27001 & AI: Don’t Rebuild. Extend.

As organisations race to integrate AI for competitive advantage, we rarely see a lack of activity. Instead, we see a variation in strategy, often resulting in missed opportunities for efficiency. We tend to see businesses fall into one of three categories. First, there are those pushing for speed; deploying AI rapidly to gain an edge while viewing […]

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