Private LLM Deployment

REXON CYBER

Secure, Controlled, and Custom AI

Unlock the benefits of large language models without the risks of public AI platforms. Rexon Cyber’s Private LLM Deployment service delivers secure, compliant, and fully controlled AI environments — designed for businesses that demand privacy, precision, and trust.

What is Private LLM Deployment?

Private LLM Deployment enables organisations to host, manage, and govern large language models (LLMs) within their own controlled environments — on-premise, in private cloud, or in a hybrid configuration.

Unlike public AI services that process data externally, private deployment ensures your data, prompts, and model interactions remain confidential and compliant.

Rexon Cyber designs secure AI environments that meet enterprise-grade cybersecurity, governance, and performance standards, allowing you to use LLMs safely for internal operations, analytics, and automation.

For regulated industries — such as banking, financial services, healthcare, and defence — this approach provides a trusted foundation for responsible AI adoption.

Air-Gapped LLM Deployment: The Next Level of Isolation

Our Air-Gapped LLM Deployment is a natural extension of the Private LLM service.

While a standard private deployment operates within a secure, restricted environment, an air-gapped deployment goes a step further — fully isolating the LLM from external networks and the internet.

This enhanced option provides total data sovereignty and is ideal for the most sensitive use cases, such as classified, regulated, or national-security-aligned environments.

Both offerings share the same design principles — security, compliance, and control — but differ in connectivity and assurance level.

Why Choose a Private LLM Deployment?

Public AI platforms cannot guarantee data protection, confidentiality, or compliance alignment — particularly under GDPR, DORA, and ISO 27001 requirements.

A private LLM deployment gives you the same AI power, but under your control.

It allows you to:

  • Harness advanced AI capabilities without exposing data externally
  • Integrate AI into internal systems and workflows securely
  • Fine-tune or retrain models on your own proprietary data
  • Demonstrate compliance to regulators and stakeholders
  • Avoid dependency on third-party AI vendors or cloud APIs

Benefits of Private LLM Deployment

  • Data Privacy & Control: All interactions remain within your trusted environment.
  • Regulatory Compliance: Fully aligned with GDPR, DORA, and ISO 27001.
  • Custom Model Governance: Apply your own access, audit, and usage policies.
  • Integration Flexibility: Deploy on-premise, in sovereign cloud, or hybrid environments.
  • Optimised Performance: Tailor compute, storage, and model parameters to your business needs.
  • Upgradeable Architecture: Seamlessly transition to an air-gapped configuration when required.

How Rexon Cyber Delivers

Rexon Cyber offers a turnkey deployment service that combines technical excellence with security assurance.

Our delivery framework includes:

  1. Discovery & Scoping: Understand organisational goals, data classification, and compliance requirements.
  2. Architecture Design: Develop a secure AI infrastructure (private cloud, hybrid, or on-premise).
  3. Model Selection & Optimisation: Deploy open-source or licensed LLMs (e.g., LLaMA, Falcon, Mistral) tailored to your use case.
  4. Security Hardening: Apply NIST, CIS, and zero-trust standards across all components.
  5. Governance Framework: Implement access control, audit logging, and responsible-AI policies.
  6. Testing & Validation: Conduct penetration tests, performance assessments, and compliance checks before production handover.

Each engagement includes a comprehensive deployment report and governance pack suitable for board and audit review.

FAQ's

A private LLM is securely hosted within your controlled infrastructure but may have managed internet or update connectivity. An air-gapped LLM is entirely isolated — with zero external connections for maximum security.
We support a range of models including LLaMA, Falcon, Mistral, and other open-source or licensed enterprise architectures.
Yes. We integrate with AWS, Azure, Google Cloud, or private sovereign clouds — ensuring logical isolation and full compliance.
Absolutely. We can retrain models on your internal datasets, all within your private environment.
Yes. Through our Managed Cybersecurity Services, we offer continuous monitoring, compliance oversight, and model performance management.

Recommended Next Steps

Upgrade your Private LLM Deployment with an Air-Gapped LLM for total isolation, or combine with an AI Security Audit and Threat Modelling service to validate your governance and resilience posture.

Ready to Bring AI In-House — Securely?