AI & Secure Cloud Architecture for Government and Enterprise

Specialists in RAG, LLMs, Knowledge Graphs, Secure Systems, and AWS Cloud Migration

Gize Ltd delivers specialist consulting in AI systems architecture, secure cloud transformation, and enterprise systems engineering. We help government, defence and enterprise organisations design and deploy next-generation solutions built on modern LLM, RAG and secure cloud technologies.

With over 30 years of experience in secure systems engineering and cloud architecture, Gize brings clarity, structure and deep technical expertise to complex programmes that require strong governance and real-world delivery capability.

What We Do

AI Solutions Architecture

Design and build LLM-powered systems including RAG, vector search, knowledge graphs, AI agents and document intelligence pipelines.

Secure Cloud Architecture (AWS)

Modernise, migrate and secure enterprise systems with AWS best practices and secure-by-design principles, including hybrid on-prem and cloud solutions that keep private data protected and focus cloud and SaaS spend where it delivers real value.

Systems Engineering & Integration

Requirements, architecture, design, integration, testing, transition and technical programme delivery.

Secure Networking & Communications

Design of encrypted communications systems, secure remote desktop environments and robust, mission-critical infrastructure.

Why Choose Gize

• 30+ years’ experience delivering secure IT architecture for government, defence and enterprise.
• Deep expertise in AI, LLMs, RAG, retrieval systems and cloud-native deployment.
• Extensive background in secure systems engineering and sensitive environments.
• Hands-on capability — not just advisory or slideware.
• Agile, flexible boutique consultancy offering personal service and rapid delivery.

Our Services

AI & Data Services

• Retrieval-Augmented Generation (RAG)
• Large Language Model (LLM) Integration
• Vector Databases (Milvus, Qdrant, FAISS)
• Knowledge Graph Engineering (GraphRAG)
• Agentic AI & MCP Tool Orchestration
• AI Document Intelligence & Ingestion Pipelines
• GPU and Hybrid Cloud AI Deployment

Cloud & Security Services

• AWS Architecture & Migration
• Hybrid architectures combining on-premises, cloud and internet-facing services to keep private data secure while reducing cloud and SaaS spend to the areas that truly need it.
• Secure Systems Design
• Encrypted Communications
• Zero-Trust Cloud Architectures
• Secure Remote Desktop Infrastructure

Systems Engineering Services

• Solution Architecture
• System Design & Integration
• Requirements Engineering
• Technical Programme Delivery
• Test & Transition Planning

Case Studies

Secure Cloud Migration for a Government Agency

Designed a secure AWS landing zone and migrated core services from on-prem infrastructure to cloud, including identity, networking and remote desktop services. Delivered a modern, secure-by-design environment aligned with NCSC principles.

AI Document Retrieval Platform

Developed a prototype RAG system using vector search, LLM summarisation and document intelligence for a large public organisation. Delivered improved retrieval accuracy for large volumes of unstructured data.

Encrypted Global Communications Network

Architected a multinational secure communications platform with end-to-end encryption, multi-region failover and role-based access controls across classified and sensitive domains.

Ready to Get Started?

Whether you’re exploring AI capability, migrating to AWS, or modernising secure systems, Gize can help.