Custom Agent and RAG Development. AI agents built to fit your systems, data and constraints
Services
Off-the-shelf agents don’t always fit existing tools, data, or operating constraints. We design and build custom agents and RAG workflows that integrate cleanly with your internal systems, work with your chosen models and operate safely within security, decision-making, compliance and production requirements.
Trusted to build AI agents with choice, reliability and control
What if AI agents worked with your systems, not around them?
Custom agents and RAG workflows that integrate with internal systems and APIs, support your choice of models and hosting and operate reliably with full control over data and behaviour.
We work with organisations who
Operate in public, enterprise or regulated environments where access control and traceability matters
Are moving beyond off-the-shelf tools to solve real operational problems
Require reliable, predictable agent behaviour in day-to-day use
Need AI agents to integrate cleanly with existing systems and APIs
Want choice over LLMs, hosting models, and deployment approach
Deliverables that drive momentum
Integrate safely. Control behaviour. Deliver outcomes.
Custom AI agents
Designed around your systems, data and operational constraints.
Integrated RAG workflows
Ingest your data from various sources and formats (e.g. Word docs and PowerPoints), so LLMs can provide more accurate responses.
LLM & hosting choice
Support for your preferred models and deployment approach.
Reliable, traceable behaviour
Designed for predictable operation with clear attribution and control.
Production-ready agent orchestration
Built to operate safely within public, enterprise and regulated environments.
Continuous evaluation & optimisation
Ongoing performance tuning using evaluation to improve reliability over time.
“We weren’t just exploring AI, we had real business problems to solve. Processing millions of identity documents demanded secure, private infrastructure we could control. Catapult helped us deploy a high-performance AI platform inside our own environment, with zero data leakage and total transparency. Now we’re confident in scaling AI, without compromising speed, cost, or trust”
Head of Data & AI
Global Pharma
Our approach. From concept to dependable agents
Design. Integrate. Operate.
Design for your environment
We start by understanding how work actually happens across your systems, data and teams. Agents and RAG workflows are designed and eval tested around real processes, chosen models and deployment constraints, not generic patterns or demos.
Integrate with your systems and data
We connect agents directly to internal tools, APIs and data sources, building custom workflows that operate securely within your environment. LLM choice, hosting model and access controls are defined up front and enforced by design.
Operate safely at scale
Agents are engineered for reliable, traceable behaviour and decisions, in day-to-day use. Performance and outputs are continuously evaluated and optimised, ensuring safe operation, predictable outcomes and long-term control.
Key technologies
Custom agents are built using proven orchestration frameworks and RAG pipelines that co-ordinate tools, data and models reliably. We integrate with a wide range of LLMs, including ChatGPT, Azure OpenAI, Microsoft Copilot and open-source alternatives, giving you flexibility as needs evolve. Deployments can run in the cloud, on-premise, or in hybrid environments, with full control over where models and data live.
Angular
React
Nest JS
SQL
No SQL
Node JS
Rabbit MQ
Java
Google Cloud
AWS
Microsoft Azure
Jenkins
GitHub Actions
Azure DevOps
OKTA
Auth0
Entra ID
Jira
ELK
Prometheus
Cloud Watch
Modular Monolith
DDD
Claude
Cursor AI
Open AI
.Net
The work we’ve brought to life
How Catapult built AI systems around real operational constraints
Why clients choose Catapult
20+
Years of software development excellence
400+
Satisfied clients and thousands of successful projects
$
On time, on-budget and on-scope delivery
An ISO 27001 certified company
Fixed price guarantee. We guarantee to deliver the outcome we’ve agreed with you, at a fixed price.
Hothouse veterans. Rapid, iterative & hands-on. We’re pragmatic problem solvers who thrive on building things that work.
Secure, auditable AI designed to work with sensitive data, access controls & enterprise constraints.
Tech-agnostic, outcome-first. Guidance in selecting stacks that minimise costs & maximise ROI
Cross-sector AI expertise
With deep experience across government and financial services, we design and deploy AI systems that work within real operational, regulatory, and domain-specific constraints.
Finance
Government
Education
Insurance
Banking
Telecoms
Real Estate
Retail
Gaming
Our expertise is frequently called upon
