Why did we partner with Waterfall?
At Sophlee, our mission is to safeguard the most critical and high-risk environments through robust, real-world cyber security solutions. As operational technology (OT) environments become increasingly targeted by sophisticated threat actors, the need for true unidirectional protection has never been greater.
We partnered with Waterfall Security because their technology sets the industry standard for secure data transfer in CNI and high-assurance environments. Waterfall’s Unidirectional Gateway solutions, including their flagship HERA platform for secure remote access, offer a hardware-enforced alternative to traditional firewalls—eliminating entire categories of cyber threats while enabling safe, monitored connectivity.
This partnership strengthens our OT security offering by enabling us to deliver trusted architectures that meet the highest levels of cyber resilience. Together, Sophlee and Waterfall Security provide clients with operational continuity, regulatory compliance, and peace of mind in the face of evolving threats.
Partner business overview
Sophlee Limited is a UK-based cyber security specialist that has been supporting Critical National Infrastructure (CNI) organisations and defence organisations since 2008. We deliver trusted technical and risk-led services to sectors where resilience and assurance are paramount, including nuclear, defence, law enforcement, maritime, energy, and government. Our clients include the Police, Ministry of Defence, NATO, the US Navy, and other national and international authorities. As an agile SME, we offer a highly responsive and tailored service, working closely with CNI operators to address the unique demands of high-assurance environments. Our expertise spans Cyber Essentials/Cyber Essentials Plus certification, risk management and accreditation aligned to national and international standards, and network and infrastructure security. We also specialise in open source intelligence-led threat detection, compliance and governance controls, endpoint protection, managed vulnerability scanning and remediation support, phishing awareness training, disaster recovery and business continuity planning, media handling and sanitisation, and secure remote access for operational environments. With a security-first mindset and deep domain knowledge, Sophlee helps CNI operators protect the systems and services that underpin national security and public safety.
