Tech Hiring Rankings

UK's Most Popular AI Companies

The UK's most popular AI companies of Summer 2026 that are actively hiring engineers.

#
Company
Open jobs
Headcount
Overall popularity
Calculated based on total number of applications received compared with all companies in Summer ’26.
1
London, UK · Machine Learning and AI
Xelix uses best-in-class AI to prevent overpayments, eliminate fraud and improve Accounts Payable productivity.
21 jobs
51 - 200
Top 2%
2
Edinburgh, UK · Machine Learning and AI
We use cutting-edge AI to analyse our customers conversational data, deploying speech analytics to provide actionable outcomes and automate processes.
12 jobs
51 - 200
Top 6%
3
London, UK · Machine Learning and AI
The AI-powered notepad for people in back-to-back meetings
8 jobs
51 - 200
Top 7%
4
London, UK · Data
We use AI to solve exponentially hard efficiency problems.
4 jobs
51 - 200
Top 9%
5
London, UK · Machine Learning and AI
Machine learning to improve construction projects
3 jobs
51 - 200
Top 10%
6
London, UK · FinTech
Make smarter decisions on fraud and payments.
4 jobs
51 - 200
Top 10%
7
London, UK · Consultancy
We are a Haskell, Rust, Blockchain and AI consultancy.
2 jobs
51 - 200
Top 12%
8
London, UK · Machine Learning and AI
Unitary is developing computer vision models to understand online content and make the internet safer.
2 jobs
51 - 200
Top 14%
9
London, UK · Marketing and Advertising
Marketing's AI Operating System. Part of The Brandtech Group.
5 jobs
201 - 500
Top 14%
10
London, UK · Machine Learning and AI
We are powered intelligence.
6 jobs
51 - 200
Top 15%
11
London, UK · BioTech
Mapping the immune system across health and disease to power precision medicine
3 jobs
51 - 200
Top 17%
12
London, UK · PropertyTech
Lettings & property management AI-first platform
7 jobs
51 - 200
Top 21%
13
Oxford, UK · BioTech
Transforming health, healthcare and drug discovery through the power of genomics.
3 jobs
51 - 200
Top 25%
14
London, UK · Machine Learning and AI
Creating the world’s leading, commercially scalable, and safe humanoid robots.
33 jobs
201 - 500
Top 26%
15
London, UK · Machine Learning and AI
Autonomy. Connected.
11 jobs
51 - 200
Top 29%
16
London, UK · Machine Learning and AI
With you for the unknown
3 jobs
51 - 200
Top 33%
17
London, UK · Market Research
The AI race. Mapped.
5 jobs
51 - 200
Top 34%
18
London, UK · Semiconductors
Fractile is building chips that remove every bottleneck to running large language models at a global scale
6 jobs
51 - 200
Top 36%
19
London, UK · Machine Learning and AI
Causaly accelerates how humans acquire knowledge and develop insights in Biomedicine.
2 jobs
51 - 200
Top 36%
20
London, UK · HR and Recruitment
Zelt gives employees a platform
1 job
51 - 200
Top 37%
21
London, UK · Machine Learning and AI
Ahead of Tomorrow
4 jobs
51 - 200
Top 39%
22
London, UK · BioTech
Relation Therapeutics uses machine learning to develop drugs for pressing unmet need.
7 jobs
51 - 200
Top 41%
23
Belfast, UK · Machine Learning and AI
THE LEADING PROVIDER OF AI ANALYTICS FOR WASTEWATER UTILITIES
3 jobs
51 - 200
Top 45%
24
London, UK · Machine Learning and AI
Complex made simple.
1 job
51 - 200
Top 45%
25
London, UK · Machine Learning and AI
Build beyond human imagination.
6 jobs
201 - 500
Top 48%
26
London, UK · MedTech
Our mission is to transform patient care with non-invasive neural sensors.
6 jobs
51 - 200
Top 48%
27
London, UK · Machine Learning and AI
We are reimagining the entire drug discovery process from first principles with an AI-first approach.
8 jobs
201 - 500
Top 48%
28
Oxford, UK · Machine Learning and AI
AI for high-stakes applications. Responsible, by design.
3 jobs
51 - 200
Top 50%
29
London, UK · Machine Learning and AI
Smart data platform for the financial services industry
2 jobs
51 - 200
Top 50%
30
London, UK · Machine Learning and AI
Hook's mission is to reinvent how businesses engage with their customers by providing machine-learnt insights to help companies radically improve customer loyalty and revenue forecasting using data.
3 jobs
51 - 200
Top 53%
31
London, UK · Machine Learning and AI
Acquire. Accelerate. Autonomize.
3 jobs
51 - 200
Top 54%
32
London, UK · Machine Learning and AI
AI for your SAP customizations, turning technical complexity into business clarity.
7 jobs
51 - 200
Top 55%
33
London, UK · Machine Learning and AI
Data for what’s next.
1 job
51 - 200
Top 56%
34
London, UK · Data
For us, it’s all about having a purposeful impact, both for our clients and also in our individual and team development. We’re a company that has learning and innovation at our core.
5 jobs
201 - 500
Top 58%
35
Edinburgh, UK · Robotics
Global leader in advanced software solutions for Robotic & Autonomous Systems. C2 & Mission Level Autonomy Specialists
5 jobs
51 - 200
Top 67%
36
London, UK · Machine Learning and AI
Trint’s speech-to-text platform makes audio and video searchable, editable and shareable.
3 jobs
51 - 200
Top 73%
37
London, UK · LegalTech
AI-Powered Legal Process Automation
3 jobs
201 - 500
Top 73%

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