Citadel Secure
Collaborate Securely Across OFFICIAL-SENSITIVE Programmes and Supply Chains
A UK Sovereign Collaboration Platform for High-Assurance Environments
Citadel Secure enables organisations that require an OFFICIAL-SENSITIVE collaboration environment to work securely with customers, partners and supply chains through a UK sovereign collaboration platform. It protects sensitive information, intellectual property and operational data under UK jurisdiction while giving authorised users a trusted place to share information, manage documents and coordinate activity.
Designed for high-assurance collaboration, Citadel Secure supports trusted services including secure document management and sharing. It helps teams reduce fragmented tools, improve visibility and collaborate confidently across Defence, Government, Academia, Industry and Critical National Infrastructure.
Remove Collaboration Barriers Without Increasing Risk
Successful programmes depend on trusted collaboration. Customers, partners, suppliers and delivery teams need to share information, coordinate decisions and maintain momentum without compromising security, governance or operational control.
When collaboration is fragmented across disconnected tools and organisations, teams lose visibility, documents become harder to manage and decision making slows. Citadel Secure reduces that complexity by providing an established UK sovereign collaboration environment where authorised users can work together with confidence.
What Citadel Secure Enables
Build Trusted Relationships
Create a trusted environment where customers, partners and supply chain organisations can work together confidently, strengthening relationships and supporting successful bids, programmes and long-term partnerships.
Collaborate with Confidence
Share sensitive information securely across organisational boundaries without compromising governance, intellectual property or operational control.
Make Better Decisions, Faster
Provide authorised users with timely access to trusted information, improving visibility, accelerating decision making and reducing delays across complex programmes.
Simplify Secure Collaboration
Reduce the complexity of managing multiple collaboration tools through a single trusted platform supporting applications such as Microsoft 365, Kahootz, Rocket.Chat, ServiceNow and secure document management.
Protect What Matters Most
Safeguard sensitive information, intellectual property and operational data through UK sovereign infrastructure that keeps collaboration services and information under UK jurisdiction.
What Customers Achieve from Citadel Secure
Secure collaboration
Enable organisations, customers and delivery partners to share information confidently across organisational boundaries.
Improved project coordination
Support secure document management, project communication, Microsoft 365 collaboration, Kahootz, Rocket.Chat and ServiceNow workflows.
Faster decision making
Give authorised users timely access to trusted information so teams can act with confidence.
Reduced collaboration risk
Replace fragmented tools and uncontrolled information sharing with a governed collaboration platform.
Sovereign assurance
Keep sensitive information, collaboration services, operational data and intellectual property under UK jurisdiction.
Why Prolinx
Trusted Collaboration by Design
Citadel Secure has been designed to enable organisations to collaborate securely while maintaining governance, assurance and operational control across complex programmes.
Built Around Operational Reality
Designed by people who understand the realities of working across defence, government and complex supply chains, Citadel Secure enables organisations to collaborate confidently without introducing unnecessary risk.
Productised for Rapid Deployment
Repeatable deployment models, fully managed services and integrated collaboration capabilities simplify implementation and enable organisations to establish trusted collaboration environments quickly.
UK Sovereign by Design
As a UK-owned and UK-operated provider, Prolinx protects collaboration services, document sharing, communications, operational information and intellectual property under UK jurisdiction while providing the assurance required for secure, trusted collaboration across customers, partners and supply chains.
Engineering Excellence
Supported by a highly skilled, security-cleared workforce, Prolinx combines engineering excellence with operational understanding to help organisations strengthen collaboration, improve governance and protect critical information.
Ready to Establish a Trusted OFFICIAL-SENSITIVE Collaboration Environment?
Whether you are developing new opportunities, managing complex programmes or enabling secure collaboration across customers, partners and supply chains, Citadel Secure provides the trusted UK sovereign collaboration platform needed to work together securely and confidently.