Top 10 Data Science Companies in the UK 2026

Data is cheap. Insight isn’t.

UK businesses are sitting on more data than they can use. The lag between collecting it and acting on it is where most AI projects stall, and the companies that help bridge that gap are in demand. In January 2026, Accenture agreed to acquire London-based Faculty, a team of more than 400 data scientists and AI engineers, in a deal valued at over $1 billion. That one purchase says a lot about where the market is heading.

Buyers want more than dashboards. They want forecasting, pricing, risk and planning models that run in production and pay for themselves. They want partners who can help with governance and AI safety, too. And they want people on the ground in London, Manchester and across the UK who understand UK regulation and know UK customers.

Some of the biggest names are global research labs and consultancies with deep UK roots. Look beyond them and you’ll find specialists that excel at one thing, like MLOps or data platforms on Google Cloud. This guide looks at the top 10 data science companies in the UK for 2026, how they differ and how to choose the right partner for your business.

Why Businesses Work With Data Science Companies in the UK

Faster Route From Data to Decisions

Good partners bring battle-tested methods, reusable tools and teams that have solved similar problems before. They shorten the time from business question to deployed model. They also reduce the risk of expensive false starts.

Access to Scarce Skills

Seasoned machine learning engineers, MLOps specialists and AI safety experts don’t grow on trees. They’re expensive to hire and even harder to keep. Working with established data science companies in the UK gives you those skills on demand, without having to build a large in-house team first.

Production-Grade AI, Not Just Pilots

Proofs of concept are cheap, which is why so many organizations have shelves full of them that never reached production. Top firms prioritize deployment. They think about how to monitor and govern models so they keep performing long after launch.

Local Knowledge and Compliance

UK data protection laws, sector regulators and public-sector procurement rules all shape how AI can be deployed. Teams that know these rules inside out can build them into your project from day one.

Top 10 Data Science Companies in the UK at a Glance

Rank	Name	Core segment	Key 2026 figure
1	Google DeepMind	AI research and models	New London HQ, Platform 37, opened in 2026
2	QuantumBlack, AI by McKinsey	AI and analytics consulting	Lilli used by 72% of McKinsey staff
3	Faculty (Accenture)	Applied AI and decision intelligence	400+ AI professionals joined Accenture
4	KPMG UK	Audit, advisory and data analytics	£3.6bn UK/Swiss Group revenue (FY2025)
5	Thoughtworks	Data, AI and software engineering	Launched Agent/works in June 2026
6	Ocado Technology	Retail AI, robotics and automation	H1 2026 group revenue of £1.0bn
7	Datatonic	Google Cloud data and AI	Two 2026 Google Cloud Partner of the Year awards
8	Peak	AI for pricing and inventory	Part of UiPath since March 2025
9	Kubrick	Data and AI talent and consulting	1,800+ data and AI professionals deployed
10	Fuzzy Labs	Open-source MLOps	Manchester specialist founded in 2019

Top 10 Data Science Companies in the UK (2026)

Here is our ranked list of data science companies in the UK, from research leaders to full-scale consultancies and focused specialists.

1. Google DeepMind

Google DeepMind was founded in London in 2010 by Demis Hassabis, Shane Legg and Mustafa Suleyman. Google acquired it in 2014, and in April 2023 it merged with Google Brain to become Google DeepMind. Today it has about 6,000 employees, and its London base is Platform 37, Google’s new King’s Cross building, named after AlphaGo’s famous Move 37. The lab is best known for AlphaGo, AlphaFold and the Gemini family of models.

AlphaFold earned Hassabis and John Jumper a share of the 2024 Nobel Prize in Chemistry. In late 2025, Google DeepMind and the UK government announced a partnership that gives UK scientists priority access to tools such as AlphaGenome and includes plans for an automated AI science lab in the UK in 2026. Google reshuffled the unit’s leadership in August 2026, making Hassabis chair and handing day-to-day leadership to Koray Kavukcuoglu. Google says it remains committed to London.

Key Data Science Solutions

✔ Gemini multimodal AI models
✔ AlphaFold protein structure prediction
✔ AlphaGenome for genomics research
✔ AI research partnerships with government and science

Best for: Research institutions and enterprises building on frontier AI models.

2. QuantumBlack, AI by McKinsey

QuantumBlack was founded in London in 2009 and has its roots in analytics for Formula 1 racing. McKinsey bought it in 2015, and it now acts as the firm’s AI business, combining McKinsey’s strategy consultants with QuantumBlack’s data scientists and engineers. Kedro, its open-source data pipeline framework, was McKinsey’s first open-source software tool.

QuantumBlack Labs has since built more than 25 proprietary tools and industry applications. McKinsey’s own generative AI platform, Lilli, is used by 72% of the firm and handles more than half a million prompts a month. Consultancy.uk’s 2026 data science ranking places McKinsey in its top Diamond tier. That mix of AI know-how and strategy is the big draw for large corporates.

Key Data Science Solutions

✔ AI strategy and transformation programs
✔ Advanced analytics and machine learning
✔ Generative AI and agent development
✔ Kedro open-source data pipelines

Best for: Large enterprises running board-level AI transformation.

3. Faculty (Accenture)

Faculty was founded in London in 2014 and grew into one of Europe’s best-known applied AI companies, working with private and public sector clients. It offers AI strategy and AI safety work as well as building high-performance AI systems. Faculty Frontier is its flagship enterprise decision intelligence platform.

On January 6, 2026, Accenture announced plans to acquire Faculty, and the deal was completed by March 2026. More than 400 data scientists and AI engineers joined Accenture, and CEO and co-founder Marc Warner became Accenture’s chief technology officer. Faculty’s track record includes the NHS COVID-19 Early Warning System and AI safety work with OpenAI, Anthropic and the UK AI Security Institute. Accenture strengthened its UK data bench again in October 2026 by acquiring Sagacity, a London-based customer intelligence company.

Key Data Science Solutions

✔ Faculty Frontier decision intelligence
✔ AI safety and model evaluation
✔ Public-sector and healthcare AI
✔ Life sciences work, including clinical trial planning

Best for: Government, healthcare and enterprise teams that need safe, applied AI.

4. KPMG UK

KPMG UK is one of the Big Four professional services firms, with large data, analytics and AI teams in its advisory business. Since October 2024, KPMG UK and KPMG Switzerland have operated as a combined group. For the year ended September 30, 2025, the group reported revenue of £3.6 billion, and profit before tax rose 14% to £576 million.

KPMG is putting AI into its own work as well as its clients’. Its January 2026 results said AI is now in the hands of every auditor in the UK, advisory teams use AI agents as digital teammates, and tax teams use a generative AI platform. Consultancy.uk ranks KPMG in the Platinum tier of its 2026 data science ranking. For highly regulated businesses, KPMG’s strength is connecting analytics to risk, audit and compliance.

Key Data Science Solutions

✔ Data strategy and analytics consulting
✔ AI-enabled audit and risk analytics
✔ Regulatory and compliance analytics
✔ AI agents for advisory and tax

Best for: Regulated businesses that need analytics tied to risk and compliance.

5. Thoughtworks

Thoughtworks is a global technology consultancy incorporated in 1993. It has about 10,000 people across 49 offices in 18 countries, including the UK. It has built a reputation for engineering excellence and is well known for its Technology Radar. Apax Partners took the company private again in November 2024.

Thoughtworks has been busy on the data and AI front in 2026. It launched AI/works in January, followed in June by Agent/works, which helps companies govern and run AI agents. It joined Anthropic’s Claude Network as a Select-Tier Services Partner in August, and in October, Expand Energy selected Thoughtworks to scale AI across its business. Consultancy.uk ranks Thoughtworks in the Gold tier of its 2026 UK data science ranking.

Key Data Science Solutions

✔ Data platform and data mesh engineering
✔ Agentic AI with Agent/works
✔ AI-assisted software delivery with AI/works
✔ Legacy and mainframe modernization

Best for: Organizations that need data and AI built into well-engineered software.

6. Ocado Technology

Ocado Technology is the technology division of Ocado Group, which was founded in 2000 and is based in Hatfield, Hertfordshire. Its Ocado Smart Platform, launched in 2015, brings robotics, automation and AI together to run online grocery operations. It has been licensed to grocers including Kroger, Sobeys, Coles and Casino Group.

Ocado Group reported first-half 2026 revenue of £1.0 billion, a figure lifted by compensation payments from Kroger and Sobeys after CFC closures and cancellations. Its Technology Solutions division has had a harder year, with full-year 2026 revenue guided at about £0.5 billion, down from £0.6 billion in 2025. Even so, Ocado’s platform remains one of the UK’s most data-heavy operations, applying forecasting, routing and robotics at scale.

Key Data Science Solutions

✔ Ocado Smart Platform for online grocery
✔ AI demand forecasting and supply chain
✔ Warehouse robotics and automation
✔ Delivery routing optimization

Best for: Grocers and retailers that want automated, data-driven fulfillment.

7. Datatonic

Datatonic is a London-based data and AI consultancy founded in 2013. It specializes in Google Cloud and has offices in London, Stockholm, Nyon, Barcelona and Montreal. Its work spans data platforms, MLOps and generative AI, and its clients include Vodafone and ASOS.

In April 2026, Datatonic won two Google Cloud Partner of the Year awards, one for Country: EMEA (UK/IE) and one for Training: EMEA, bringing its total to 12. CEO Scott Eivers has kept the business focused on Google Cloud, and Datatonic also grew in 2025 through an acquisition in Croatia. Google Cloud customers will find few UK specialists with a deeper track record.

Key Data Science Solutions

✔ Google Cloud data platforms and BigQuery
✔ MLOps and Vertex AI deployments
✔ Generative AI applications
✔ Data and AI training

Best for: Businesses building their data and AI stack on Google Cloud.

8. Peak

Peak was founded in Manchester in 2015 by Richard Potter, David Leitch and Atul Sharma. The founders grew the business with backing from investors including SoftBank Vision Fund 2, which led a $75 million Series C in 2021. Peak also has offices in Jaipur and New York.

UiPath acquired Peak in March 2025 to add vertical AI agents to its automation platform. Peak’s products include Inventory AI and Pricing AI, which cover replenishment, scenario planning, markdowns and quote pricing. Heidelberg Materials automated quoting and pricing using Peak and UiPath, while manufacturer Eurocell has used Peak’s AI for inventory management.

Key Data Science Solutions

✔ Inventory AI for planning and replenishment
✔ Pricing AI for markdown and list price optimization
✔ Agentic AI for commercial teams
✔ Integration with UiPath automation

Best for: Retailers and manufacturers that want AI-driven pricing and inventory decisions.

9. Kubrick

Founded in 2016, Kubrick takes a different approach from most companies on this list. Instead of hiring experienced consultants, it trains graduates and junior professionals in data and AI skills, then places them with client teams. Kubrick has trained and deployed more than 1,800 people in data, AI and cloud engineering roles for over 130 blue-chip clients. Bowmark Capital invested in 2021, and Kubrick opened a US office in 2022.

Kubrick’s partner ecosystem keeps growing. It was named Collibra Regional Systems Integrator of the Year for EMEA 2026, is an Elite Partner with Snowflake and holds AWS Advanced Tier Partner status. Client results it reports include about $14 million saved in aircraft maintenance and about $30 million saved across an FMCG supply chain.

Key Data Science Solutions

✔ Trained data and AI consultant teams
✔ Data engineering on Snowflake, Databricks and AWS
✔ Data governance with Collibra
✔ Analytics and machine learning delivery

Best for: Enterprises that want to scale data teams quickly and cost-effectively.

10. Fuzzy Labs

Fuzzy Labs is a Manchester-based MLOps consultancy founded in 2019, with a particular focus on open-source tools. It helps organizations build and run AI systems they own and control, without becoming reliant on a single vendor’s platform.

Fuzzy Labs designs machine learning pipelines, automates model operations and builds custom tools where off-the-shelf options fall short. It also publishes the MLOps.WTF newsletter and prototypes new tools through Fuzzy Labs². It’s a good fit for teams that already have models and want help getting them into reliable, monitored production.

Key Data Science Solutions

✔ Open-source MLOps platforms
✔ ML pipeline design and automation
✔ Model monitoring in production
✔ Custom AI infrastructure tooling

Best for: Technical teams that want to own and operate their AI stack.

How to Choose the Right Data Science Partner

Start With the Business Problem

Identify the decision you want to improve, whether that’s pricing, demand planning or fraud detection. A firm with case studies in that area will get you off the ground faster. Send a vague brief and you’ll likely get a vague model.

Check Production Experience

Ask how many models the firm has running in production and how they are monitored. MLOps expertise matters as much as modeling. A good partner will talk about retraining, drift and ownership after handover.

Match the Cloud and Tools You Use

Your tech stack matters. If you run on Google Cloud, a Google specialist like Datatonic makes sense. If you use Snowflake, Databricks or AWS, look for a partner with matching partner status. The right partner shouldn’t force you to re-platform.

Look at Governance and AI Safety

If you’re in a regulated sector, you’ll need explainable models, audit trails and clear controls around your data. Ask how AI is safety tested and how the firm handles UK GDPR compliance. Companies with public-sector or financial-services experience usually have established processes for this.

Weigh Scale Against Focus

Large consultancies bring breadth and experience running big programs. Specialists may have fewer resources, but they go deeper in their areas of focus and often give you more senior attention. Many businesses use both, depending on the project.

Frequently Asked Questions About Data Science Companies in the UK

Which is the best data science company in the UK?

There is no single best choice for everyone. Google DeepMind leads in research; QuantumBlack and KPMG are strong choices for large-scale transformation and regulated work; and specialists such as Datatonic, Peak and Fuzzy Labs are often a better fit for focused projects.

How much do data science companies in the UK charge?

Rates and project fees vary widely depending on the firm, the scope of the project and the seniority of the team. Larger consultancies usually charge more than niche specialists. Ask any firm you’re seriously considering for a scoped proposal with clear milestones before you commit.

Where are most data science companies in the UK based?

London has the largest cluster of data science companies in the UK, including Google DeepMind, QuantumBlack, Faculty and Datatonic. Manchester is the next biggest hub, home to Peak and Fuzzy Labs.

Should I hire in-house or work with a data science company?

Many businesses do both. A partner can help you build your first models and set up good practices, and then an internal team can own them over time.

Conclusion

The UK has some of the best data science talent in the world, with world-class research labs, large consultancies offering breadth and specialists offering depth. In 2026, the sector has moved on from interesting experiments to AI that runs in production and improves business results.

The right company for you depends on your goals, your tech stack and the size of your project. Use this list of the top data science companies in the UK as a starting point, shortlist two or three, and test them on a real business problem before you sign a long-term contract.