OT, IT and a supply chainyou can't afford to lose.

CNI operators answer to NIS obligations and carry risk most frameworks barely touch: operational-technology maintenance vendors, remote-access pathways into plant, exposed engineering interfaces, long patch windows and dangerous concentration in a handful of critical providers. A breach or outage here is not just a data incident. It can become a safety, availability and continuity issue.

E2ERisk maps those dependencies and ties them to assurance, threat exposure and resilience impact. Supplier assessment, outside-in scanning, threat matching and tested recovery run on one platform, so concentration risk and blast radius are visible, OT-relevant controls are assessed, and a new exploit resolves into the named operators it actually exposes.

Built for sensitive CNI environments - customer-tenant deployment in your own UK tenant, role-based access and an append-only audit trail. See the security model →

NIS already holds operators of essential services to account for the security of their supply chain, but the hard part is that a CNI supply chain is not one thing. It runs from corporate IT through to the operational technology that keeps plant running, taking in maintenance contractors, remote-access vendors and a small number of specialist providers that everything quietly depends on.

Assessing that estate with a single IT-shaped questionnaire misses the controls that actually matter, and treats a high-volume stationery supplier the same as the firm with a live connection into a control system. E2ERisk sizes the assessment to operational impact instead.

Every supplier follows the same path, from the moment it is engaged through to continuous monitoring long after onboarding. How deep the assessment goes is set by operational impact and the essential services a supplier underpins - so a small security team spends its effort on the vendors that could actually take a service down, not evenly across the estate.

The obligations do not change; what changes is whether you can see the whole picture at once. Run on spreadsheets, OT suppliers get IT questionnaires, concentration stays invisible until a single provider fails, and the threat picture is only ever as current as the last manual review.

The result is a supply chain you can actually reason about - where the suppliers that matter most are assessed the hardest, concentration is explicit, and a regulator or board question is answered from live evidence rather than a fortnight of chasing.

Most CNI operators start with Supplier Assurance and the Threat Centre: the suppliers behind essential services and the live exposure they carry, then bring in CAF and Business Resilience as the shared evidence base proves itself. Because every module runs on one engine, what you build for the first carries straight into the next.

The payoff for an operator of essential services is a single, current view of the supply chain behind those services. OT and IT suppliers are assessed on one platform, every supplier is tiered by operational impact, concentration is visible in one place, and exposure is monitored continuously rather than at the next review.

An operator answers to NIS and the CAF, often alongside sector-specific OT standards such as IEC 62443, and an assessor for one will not accept evidence shaped only for another. E2ERisk maps a single body of assessment answers to every regime it touches, so a control proven once is reported against all of them.