Global enterprise cybersecurity consultancy founded in 1999 in Oxford, holding rare CREST STAR-FS accreditation and delivering penetration testing, red and purple teaming, and PCI QSA services across five international offices.
- Categories
- Penetration testing, Incident response, Security consulting and vCISO, Compliance audits (SOC 2, ISO 27001)
- Based in
- Oxford, United Kingdom
- Founded
- 1999
- Size
- 51-200 staff
- Ownership
- Owned by Nomios since 2024
- Certifications
- ISO 27001, ISO 9001, PCI QSA, CREST
About Dionach
Dionach is a cybersecurity consultancy with over 25 years of experience. It provides penetration testing, assurance, compliance and incident response services. It also offers AI governance services to help organisations manage AI risks and meet regulations. The company serves over 350 public and private sector clients worldwide and conducts more than 2,000 penetration tests each year. It has over 50 consultants and is part of Nomios. Its services are delivered through expert-led testing, governance and incident response, with a focus on identifying real risk and validating defences. It works with clients to understand their needs and tailor solutions. The company also provides a platform called Solas for managing security assurance programmes.
Products
- SolasA platform for managing end-to-end security assurance programmes, offering a centralised dashboard, job tracking, secure reporting and data insights.
Ownership and deals
- Nomios acquired DionachReport on Nomios buying Dionach (opens in a new tab)
Acquisitions come from SecurityWeek's monthly M&A round-ups from 2021 onwards, from Cybersecurity Ventures' quarterly M&A reports for 2020, and a few from Wikipedia lists. Funding rounds from 2022 onwards come from Return on Security's weekly Security, Funded newsletter. These are dated to the month. A few deals added from the news are dated to the day. Smaller deals may be missing. Amounts are in US dollars.