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AI Assurance
Independent assessment of AI systems, models, controls, suppliers and operational risk across the lifecycle.
Explore AI assurance →Technology & AI Assurance
Independent assurance for complex technology and AI.
SEDDA helps organisations understand whether technology and AI systems are secure, resilient, effective and ready for use. We combine experienced human specialists with broad AI-enabled capability while keeping accountability and decisions firmly human-owned.
Human-ledAccountable people retain authority for decisions
Vendor-neutralAssurance is not tied to one model, platform or supplier
ContinuousEvidence can be reassessed as systems, models and risks change
// How SEDDA helps
Assurance that spans technology, suppliers and delivery.
We can work directly with an organisation or as a specialist member of a wider delivery team, providing independent evidence and challenge without competing with the role of the prime or delivery partner.
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Independent Assurance
Evidence-led review separate from the team designing or delivering the solution, with clear findings and traceability.
Explore independent assurance →03
Technology Assurance
Testing and assurance across applications, cloud, infrastructure, data, APIs, security, resilience and accessibility.
Explore technology assurance →04
Consulting & Delivery
Specialist capability that can strengthen customer programmes and partner-led bids, projects and managed delivery.
Explore consulting & delivery →// Independent by design
Evidence first. Technology neutral. Proportionate to risk.
SEDDA can assess a solution independently of the people building it. Our approach can examine technical behaviour, governance, security, supplier dependencies, operational readiness and the evidence supporting key claims.
For AI, that includes the ability to reassess as models, prompts, data, integrations or operating conditions change rather than treating assurance as a one-off event.
How independent assurance works →Assurance principles
- Human-owned decisions and clear accountability
- Multi-vendor and multi-model neutrality
- Evidence and auditability
- Continuous reassessment where risk changes
- Supplier and third-party assurance
- Proportionate methods matched to context
- Security, resilience and operational readiness
- Clear findings for technical and executive stakeholders
// Partner delivery
Designed to strengthen wider delivery teams.
SEDDA supports government and enterprise organisations directly and through established delivery partners. We can provide specialist testing, assurance and consulting capability within a prime-led engagement while maintaining clear roles, evidence boundaries and accountability.
This makes SEDDA suitable for focused work packages, specialist augmentation, independent review and assurance functions alongside larger transformation and technology programmes.
Ways of working
- Direct customer engagement
- Prime and consultancy partner support
- Specialist work packages
- Independent assurance workstream
- Targeted capability augmentation
- Evidence-led bid and delivery support
// AI-enabled capability
Northcroft Board.
Northcroft Board is a governed AI specialist capability that broadens the disciplines available around assurance, security, architecture, data, cloud, governance, commercial, operational and delivery work.
It helps SEDDA examine problems from more angles, challenge conclusions, maintain evidence trails and bring specialist knowledge into the work more quickly, while human leadership, authority and judgement remain central.
Explore Northcroft Board →The operating model
- Experienced human specialists
- AI-enabled specialist bench
- Defined governance and escalation
- Evidence-led analysis
- Cross-discipline challenge
- Human approval for consequential decisions
// Established testing capability
Cyber security testing, assurance & expertise.
The existing SEDDA testing practice remains a core part of the proposition, including application, network, cloud, data, API, standards-based, penetration and operational technology testing.
Security Testing
Practical technical testing to identify exploitable weaknesses, configuration problems and control gaps.
Retest & Evidence
Validation of remediation and clear evidence for stakeholders, governance and delivery decisions.
Capability Support
Specialists who can deliver focused engagements or help strengthen an organisation's own assurance capability.
// Evidence in practice
Existing case studies.
Examples of practical security assurance across sensitive operational environments.
Luxury Car Manufacturer
Passive OT assessment in a low-maturity environment, producing prioritised actions to reduce operational downtime.
Read full case study →CNI Operator Substation
On-site OT penetration testing before connection to the wider network, supporting practical pre-go-live remediation.
Read full case study →National Rail Operator
Internal penetration testing and protocol fuzzing to assess SCADA communication resilience and network exposure.
Read full case study →