The partnership combines operational security and independent compliance assurance to deliver evidence-ready compliance.
SOC-as-a-service provider e2e-assure and cybersecurity and vulnerability management company A&O Corsaire have announced a partnership that combines e2e-assure’s operational security with A&O Corsaire’s independent compliance assurance. Working together, the two will enable UK customers to achieve compliance more easily with automatic reporting and evidence gathering — all processed and delivered within the UK to meet sovereign technology requirements.
Organisations across critical national infrastructure (CNI), defence, and regulated industries face mounting pressure to demonstrate that they are secure and can provide the evidence to prove it. Traditional approaches treat operational security and compliance assurance as separate goals, but this can create gaps, duplication, and a lack of confidence when reporting to boards, regulators, and government stakeholders.
The burden of compliance is further intensifying with the Cyber Security Resilience Bill (CSRB), which is expected to significantly expand the definition of critical infrastructure, forcing regulated organisations to demonstrate granular, auditable control over their entire security supply chain. At the same time, concerns around geopolitical risk are reshaping procurement decisions. For organisations in sensitive sectors, a security partner that cannot confirm UK-sovereign operations is a potential barrier to their own certifications, regulatory attestations, and, in some cases, their ability to win and retain contracts.
The partnership will combine A&O Corsaire’s cyber assurance and transformation expertise with e2e-assure’s UK-owned and operated Security Operations Centre (SOC) to create a framework-aligned, fully sovereign security programme.
A&O Corsaire’s assurance practice spans the full attack surface: penetration testing across web applications, APIs, networks, cloud, and mobile; hardware and IoT assessments; red team operations; and regulatory compliance assessments mapped to the frameworks specific to the sectors in which the client operates. Its transformation practice takes organisations through the full remediation journey from identifying gaps to actively closing them via cloud security transformation, identity and zero trust architecture, and compliance programme design. With over 25 years of practice, CREST accreditation, and a 95% client retention rate, A&O Corsaire operates a closed-loop model whereby assurance findings feed directly into active remediation and SOC detection engineering.
e2e-assure’s 24/7/365 SOC, staffed exclusively by security-cleared professionals, is designed from the ground up to support client compliance with CAF, NIST CSF, NIS2, and IEC 62443. Its proprietary SaaS platform, CUMULO, integrates with existing security stacks and produces reporting that maps directly to the frameworks regulators and auditors require. The technology allows users to see live compliance and simulate how changing elements of their technology or processes will change compliance outcomes.
The partnership will deliver a single, coherent evidence trail, from assessment through to live detection and response, that is auditable, framework-aligned, and can be immediately used for regulatory submissions, risk reporting to the board, and third-party audits. This trail also remains under UK jurisdiction because everyone that handles client data and the systems that process it operate entirely within the United Kingdom and under UK law and UK regulatory oversight.
Rob Domain, CEO and founder of e2e-assure, said: “A CNI operator managing CAF, NIS2, and ISO 27001 shouldn’t have to stitch together outputs from separate providers and translate them for auditors. The partnership with A&O Corsaire means we can deliver that full stack, from gap assessment and penetration testing through to continuous monitoring and framework-mapped reporting. This shifts the compliance burden away from our clients’ teams, freeing them up for more impactful work. We’re excited that this is the first time organisations with overlapping, multi-framework obligations will be able to access that full capability from two providers whose delivery models have been explicitly designed to work as one. This will be a game-changer for sectors where compliance failures can result in operational disruption or loss of licence to operate. We’re proud to set a new standard for what a security partnership in a regulated environment should look like.”
Tom McDowall, general manager of A&O Corsaire, said: “Sovereign operations have moved from a procurement preference to a material risk question. Boards in financial services, CNI, and defence supply chains are now asking whether their security partners could themselves be a vector, and a partner that can’t answer that cleanly is a liability, not an asset. That’s the market reality this partnership was built to address. The regulatory direction of travel is unambiguous. As the UK’s NIS2-aligned legislation takes shape and procurement scrutiny of the entire security supply chain intensifies, the organisations that have already established sovereign, end-to-end security programmes will be ahead of requirements that others are still scrambling to meet. What we can now offer the market is a complete answer to that question, one that is auditable, accredited, and built entirely within the UK.”
Customers can start benefiting from the partnership immediately by speaking to their representative at e2e-assure. For more information, visit e2e-assure.com.
