Contact Us

Phone
+44 (0)20 3137 2845
Email
enquiries@atchai.com
Adress
85 Great Portland Street, London, W1W 7LT, UK

Building AI that works isn't magic - it's a pattern.

Building AI that
works isn't magic.
‍
It's a pattern.
Schedule a call

TRUSTED BY

Over a decade delivering AI for the world’s most demanding organisations.

Complex problems need nuanced solutions - we craft them with speed and precision.

Atchai is an AI strategy and engineering consultancy founded in 2011. We help regulated industries deploy AI agents in production, with clients including the UK Cabinet Office, Danone, FCDO, and Fortune 500 organisations. Our work spans intelligent document processing, agentic AI platforms, and data-driven decision making.

Our Approach

A Proven Path to AI Transformation

We've helped Fortune 500s, government departments, and venture-backed startups successfully adopt AI. Our proven methodology de-risks your investment and accelerates time to value.

Discover and Strategise
We assess your AI readiness, identify high-impact opportunities, and build a prioritised roadmap aligned with business objectives. You'll know exactly what to build, why, and in what order.
Architect and Design
Our technical leads design scalable, secure solutions tailored to your constraints — on-prem, hybrid, or cloud. Build vs. buy decisions made with confidence, no vendor lock-in.
Build and Deliver
Focused sprints deliver working solutions early so you can validate direction and demonstrate progress to stakeholders. Production-grade AI within weeks, not months.
Integrate and Enable
We deploy into your existing workflows, transfer knowledge to your teams, and ensure you can run, maintain, and extend what we've built together.
CompleteFlow

Our agentic AI platform with intelligent document processing

Everything we learned building AI for government departments, Fortune 500s, and venture-backed startups went into CompleteFlow. AI agents that work alongside your team, on your infrastructure, with full governance.

100x

throughput on document workflows

86%

fewer false positives in classification

90%

user satisfaction score (NPS)

See the platform →

our clients say

We engaged Atchai to develop our first AI offering. We found Atchai’s experience and knowledge of this space invaluable.

Atchai’s approach to the project was very professional and well structured. I look forward to working with them again.

– MATT SCOTT (Danone)

The Atchai team were fantastically agile, professional and reliable throughout the project, we communicated regularly and managed to develop a novel concept into working software within a short timeframe.

I highly recommend working with Atchai for any project that requires a creative approach backed up by strong engineering practices.

- BERNHARD MUELLER (Consensys)

Atchai built the core framework for our agent platform and developed critical agents that perform seamlessly within tight model constraints.

Their precision and reliability made all the difference.

– RAKSHAK TALWAR (Morpheus AI)

I engaged Atchai for a recent, very challenging project mining the group associativity of social media networks.  I was highly impressed by the way John runs his team, the agile way in which they approach the work and even more pleased with their ideas and technical input. I would recommend John and his team at Atchai to anyone who needs a competent solution for any data-oriented enterprise project.

- ADRIAN LEU (Parity)

We needed a way for funders to be able to analyse and compare the data of hundreds of organisations on a real time basis and explore visualisations of the data in an intuitive, insightful way.

Atchai and their Dataseed product offered an ideal solution.

– MATTHEW PIKE (ResultsMark)

This is the best use of AI within government I’ve seen! 

- LUKE SANDS (Cabinet Office)
Services

From Strategy to Scale

Strategy / Discovery
We help organizations validate AI initiatives and make informed decisions before committing to implementation.

Our Strategy and Discovery services ensure you have a clear roadmap, supported by thorough research and technical planning.
Identify opportunities
Develop a vision into a product roadmap
Design technical architecture
Exploratory data analysis
Test hypotheses with experiments
AI Engineering / Data Science
Atchai specializes in building custom AI solutions that integrate seamlessly into your operations.

Our expertise covers the full spectrum of AI and data science, from basic data analysis to production-scale data pipelines.
Agentic AI and advanced automations
Private on-prem and hybrid cloud LLMs
Information extraction, classification
Models trained on your data
Knowledge graphs and vector databases
Full Product Development
We have spun out our own products and helped VC-backed startups to bring new products to market.

We understand the importance of the full user journey across multiple touchpoints - from acquiring customers and delighting them, to retaining them.
Product management
Full stack engineering
User centred design (UI / UX)
PoC and MVPs
Security and scalability

Book your free strategy session

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case studies

Our Work

CompleteFlow
Agentic AI Platform

We built CompleteFlow from everything we learned delivering AI for the Cabinet Office, Danone, FCDO, and dozens of other organisations.

CompleteFlow is an agentic AI platform for regulated industries. It processes documents, runs workflows, and answers questions across your organisation. Agents deploy on your infrastructure with full audit trails, human-in-the-loop controls, and policy-as-code governance.

The platform connects to 10,000+ systems via the Model Context Protocol, with production agents deployed in as little as 6 weeks.

Cabinet office
Making Government Data Understandable and Actionable

We built AI tools to make sense of terabytes of unstructured government documents dating back to the 1980s.

Using knowledge graphs and custom algorithms, we turned vast archives into clear insights that help shape better policies.

By managing diverse stakeholders and handling complex data formats, we delivered a solution that works at scale and drives real results.

MCP Security Audit
Enterprise MCP Security Audit

As MCP adoption accelerated across the enterprise, we saw a gap: most MCP servers were being deployed without proper security review. We built an automated audit pipeline that analyses MCP servers against a comprehensive security framework.

The audit covers 100+ enterprise MCP servers across categories including Salesforce, Slack, GitHub, AWS, Azure, databases, and document management platforms. Each server is evaluated for authentication mechanisms, data exposure risks, input validation, permission scoping, and compliance readiness.

Key findings from the audit are published as an open resource at completeflow.ai/mcp-audit, helping enterprises make informed decisions about which MCP servers to deploy in regulated environments.

The project demonstrates our deep expertise in MCP security and governance, which directly informs how we deploy MCP-based AI agents through CompleteFlow.

Foreign
commonwealth and development office

Data-driven decision making for a $2B fund

consensys

Simulating decentralized token economies

bit.bio

Insights-driven ecosystem for biotech