Custom AI Development in the UK
Build production AI for your UK business — custom platforms, enterprise RAG with verifiable citations, AI chatbots, and multi-agent automation. Concept to deployment in 4–8 weeks, with UK GDPR and Data Protection Act 2018 compliance designed in from day one. Same architecture standards delivered to London fintech and US enterprise clients, without the international-rate premium.
What We Build
Custom AI platform development
End-to-end AI platforms tailored to your UK business — from architecture to production. Built for scale, not prototypes.
2 live production SaaS · sole architectEnterprise RAG with verifiable citations
Document intelligence with source attribution and a citation verifier. Every answer cites the page or paragraph it came from.
0 hallucinations across 297 benchmark casesAI chatbot development
Enterprise chatbots that understand your company context — RAG-powered, UK GDPR compliant, integrable with your existing SSO.
Deployable in UK or EU regionsMulti-agent AI systems
Multiple AI agents collaborating on complex tasks — content pipelines, trading ensembles, research workflows.
20-agent ensemble shipped to productionAI document processing
Automated extraction, classification, and analysis of UK business documents — contracts, invoices, compliance reports, regulatory filings.
40–70% workflow time savingsAI integration & automation
Connect AI to your existing UK stack — Salesforce, HubSpot, SharePoint, Notion, your CRM and ERP.
4-week MVP deliveryWho Builds Custom AI Systems for UK Businesses?
Nic Chin builds custom AI platforms for UK businesses. Unlike general software agencies, the focus is exclusively on production AI — RAG systems with verifiable citations, multi-agent automation, enterprise chatbots, and AI document processing. Every system is architected for UK GDPR compliance and production reliability, not just demos.
Production track record includes:
- SureCiteAI — a live multi-tenant document intelligence RAG SaaS with 96% retrieval hit-rate and 0 hallucinated citations across 297 cases on public benchmarks (PatronusAI FinanceBench, CUAD, openFDA, SEC EDGAR)
- SystemAudit — a live codebase intelligence SaaS that turns any GitHub repo into a full architecture, security, and AI-readiness report in under 3 minutes
- A 12-component legal RAG system processing 150–200 page documents in minutes
- A 20-agent trading intelligence ensemble handling real-time market analysis
- An AI marketing automation platform delivering 40–70% workflow time savings
Methodology and benchmark artefacts are public — see the /proof page.
How Much Does Custom AI Development Cost in the UK?
| Project type | Typical range | Timeline |
|---|---|---|
| Discovery + scoping sprint | £3,000 – £8,000 | 2 weeks |
| AI chatbot (RAG-powered) | £8,000 – £25,000 | 4–6 weeks |
| Document processing system | £12,000 – £40,000 | 4–6 weeks |
| Enterprise RAG platform | £25,000 – £75,000 | 6–8 weeks |
| Multi-agent AI system | £50,000 – £150,000+ | 8–12 weeks |
| Full enterprise AI platform | £75,000 – £250,000+ | 12–24 weeks |
| Fractional AI CTO | £2,000 – £8,000 / month | 1–3 days/week, ongoing |
Most UK engagements start with a paid 2-week discovery sprint that produces the architecture document, cost estimate, and risk register — kept whether you proceed with the build or not. This avoids the common UK AI buying mistake: signing a five- or six-figure transformation engagement before any working software exists.
Private GPT for Your UK Documents
The pattern most UK businesses ask for under the phrase "private GPT" is a multi-tenant RAG system: your company documents stay in your data store, an AI assistant answers questions about those documents, every answer cites the source page, nothing is sent to OpenAI or Anthropic for training, and access is gated by your existing SSO.
SureCiteAI is the production reference implementation. The same architecture transplants into a UK client deployment in 4–6 weeks. Data residency stays in UK or EU regions; the citation verifier blocks hallucinated sources; audit logs are retained per your retention policy.
UK GDPR and the Data Protection Act 2018
Every AI system is designed with UK GDPR compliance from the architecture stage:
- Data residency: UK or EU regions for data at rest and in transit
- Purpose limitation: enforced at the prompt layer — the model only sees data scoped to the current task
- Source attribution: every AI-generated answer is traceable to the underlying document
- Right to erasure: handled across vector stores as well as relational data — not just "delete the row"
- Audit logging: every prompt, retrieval, and answer is logged with retention configurable to your policy
- Data minimisation: personal data is masked or omitted in training and embedding paths where it is not strictly required
For regulated UK industries — financial services under FCA, healthcare under MHRA — additional safeguards include on-premise or VPC deployment, role-based access controls, and complete audit trails surfaced to your compliance team.
Industries We Build For in the UK
- Financial services and fintech — KYC/AML automation, FCA-aligned document analysis, regulatory reporting, fraud detection
- Legal and professional services — contract review, due diligence, clause extraction, internal knowledge bases (see AI for law firms)
- Insurance — claims triage, policy document analysis, underwriting decision support
- Healthcare and life sciences — clinical decision support, regulatory document automation, MHRA-aligned workflows
- Accountancy and fund administration — document review, compliance, internal knowledge management
- Enterprise SaaS — adding AI features to existing UK products, multi-tenant RAG, AI-powered customer support
How Long It Takes to Ship
- Discovery call (free, 30 minutes) — understand your problem, data, and constraints
- Discovery sprint (2 weeks, £3K–£8K) — architecture document, cost estimate, risk register, build vs buy recommendation
- MVP build (4 weeks) — core system targeting your highest-value workflow, weekly demos, success criteria agreed up front
- Production deployment — UK or EU region, monitoring, security review, GDPR sign-off
- Iterate and scale — fractional CTO support to expand to adjacent workflows once value is proven
For businesses outside the UK, see Custom AI Development Malaysia and Custom AI Development Singapore.
Ready to build your AI system?
Book a free 30-minute discovery call to scope your project. You will get an honest assessment of what AI can do for your UK business, a rough timeline, and a cost range — no sales pitch, no obligation.
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