# C3IA Solutions Limited - **Type:** Advisory firm - **Website:** https://c3ia.co.uk - **Assessed by:** The Assurance Desk (Add-Venture Advisory Ltd) A UK cyber security consultancy with NCSC-assured status for audit and risk management, working for public-sector and defence clients. It also sells security testing. ## C3IA Solutions scores Scored 1 to 5 on six criteria. There is no overall score. ### Help when things go wrong: 2/5 No published case study, court record or regulatory finding evidencing C3IA defending a client through an incident or regulatory probe was found on its own site or via search; equally no adverse finding was found. ### Qualifications of the people who do the work: 4/5 NCSC Assured Cyber Security Consultancy in Audit & Review and Risk Management, ISO/IEC 27001 accredited 22 Sep 2023, Cyber Essentials Plus, CREST/CHECK testers, DV-cleared staff, per NCSC register and C3IA's own G-Cloud listing. ### What it publishes about fees: 3/5 C3IA publishes an SFIA-banded day-rate card of £497 to £1,720 per day on its G-Cloud 14 listing, but no separate fee schedule or pricing appears on its own website. ### Knowledge of your sector: 3/5 Deep public-sector/defence pedigree since 2006 with DV-cleared, CCP-type certified staff, but its own service list spans systems engineering, radio comms and physical security well beyond assurance work. ### Independence from what it sells: 4/5 No proprietary compliance software or platform sale was found tied to its assurance findings; however C3IA's own site lists penetration testing and engineering delivery alongside its audit and risk consultancy. ### Who carries the risk if the advice is wrong: 2/5 No professional indemnity insurance level or liability commitment is disclosed on C3IA's own site; its G-Cloud listing cites only the ISO 20700 consultancy-management standard. ## Sources for C3IA Solutions Every line carries the page it was read on and the date it was checked. - C3IA Solutions Limited is an active private limited company, company number 05746584, incorporated on 17 March 2006. - Source: https://find-and-update.company-information.service.gov.uk/company/05746584 - Checked: 2026-09-19 - C3IA holds NCSC Assured Cyber Security Consultancy status in two categories: Audit & Review and Risk Management. - Source: https://www.ncsc.gov.uk/organisation/c3ia-solutions-ltd - Checked: 2026-09-19 - C3IA's G-Cloud 14 listing publishes an SFIA-banded day-rate card for its NCSC assured cyber security services. - Source: https://www.applytosupply.digitalmarketplace.service.gov.uk/g-cloud/services/342283242759804 - Checked: 2026-09-19 - The same G-Cloud listing states C3IA's ISO/IEC 27001 certification was accredited on 22 September 2023, and that its staff are cleared to Developed Vetting (DV) level. - Source: https://www.applytosupply.digitalmarketplace.service.gov.uk/g-cloud/services/342283242759804 - Checked: 2026-09-19 - C3IA's own company history page states it became one of the first six companies certified by NCSC to provide cyber services in 2017, having gained ISO 9001 in 2011 and ISO 27001 in 2013. - Source: https://c3ia.co.uk/about-us/history/ - Checked: 2026-09-19 - Companies House filing history shows C3IA's statutory filings are current: full accounts for the year ended 31 March 2025 were filed 8 January 2026, and a confirmation statement was filed 25 March 2026. - Source: https://find-and-update.company-information.service.gov.uk/company/05746584/filing-history - Checked: 2026-09-19 ## What this provider publishes Not published means we did not find it on the firm's own pages. - Price: Published - Indemnity cover: Not published - Credentials: Published - Independent accreditation: Published - Client results: Not published - How it uses AI: Not published ## Strengths - NCSC Assured Cyber Security Consultancy in Audit & Review and Risk Management, among the first six firms NCSC-certified, since 2017. - ISO/IEC 27001 accredited (22 September 2023) and Cyber Essentials Plus certified, per its own G-Cloud 14 listing. - CREST- and CHECK-certified security testers and Developed Vetting (DV) cleared staff, evidencing genuine public-sector/defence assurance depth. - Publishes an SFIA-banded day-rate card (£497-£1,720/day) on G-Cloud, giving real fee transparency for public-sector buyers. - Companies House filings (accounts and confirmation statement) are up to date, with no overdue filings found. ## Things to check Each one carries the factual basis it rests on. - C3IA's own service pages list Penetration Testing, Security Testing and defence Systems Engineering delivery alongside its NCSC-assured Audit & Review and Risk Management consultancy, so the same firm can recommend remediation and then be paid to deliver it. - Basis: c3ia.co.uk/services/cyber-security/ lists Penetration Testing, Security Testing and Audit & Compliance together as services of the same firm. - No professional indemnity insurance details, such as insurer name or cover level, are published anywhere on C3IA's own website. - Basis: c3ia.co.uk/about-us/ and its risk-consultancy and audit-compliance service pages contain no PI insurance disclosure of any kind. ## Where this firm appears - [Do you need a data protection officer?](https://theassurancedesk.com/best/first-appointment) - [Your sector adds its own rules to UK data protection law](https://theassurancedesk.com/best/sector-regulated) - [Which data protection, AI governance and cyber security providers publish a price?](https://theassurancedesk.com/lists/providers-that-publish-a-price) - [Compare providers](https://theassurancedesk.com/compare) --- **Scope.** The Assurance Desk covers data protection, AI governance and cyber security in the United Kingdom and the United States. It scores providers in both: UK-facing firms, and firms based in the United States. Every provider scored so far was selected for data-protection, AI-governance or security-assurance work. Where a page describes law, it names the country that law applies in. **Who publishes this.** The Assurance Desk is published by Add-Venture Advisory Ltd, company number 11854524, registered in England and Wales. The same owner runs Avouch, a marketing agency that sells AI visibility services to firms of the kind this site covers. That is a conflict of interest, and it is disclosed here. **Corrections.** If you represent this firm and something here is wrong or out of date, email hello@theassurancedesk.com with the evidence.