Top AI Agencies in London

Best for: Enterprises with a scheduling, routing or workforce-allocation problem big enough to justify operations-research specialists.

Best for: Enterprises standardizing ML delivery on Google Cloud or AWS, especially where a regulator has to be satisfied.

Best for: Enterprises and public bodies that need AI deployed under regulatory or safety scrutiny.

Best for: Pharma, research and public-sector buyers with an NLP problem on unstructured documents that has to survive review.

Best for: Enterprises with a defined prediction or document-automation problem that want a model in production in weeks.

Best for: Health and industrial companies taking a risk-scoring or compliance-reporting workflow from paper to a regulated digital platform.

Best for: Operators with a measurable production bottleneck AI can remove—from timber design queues to e-commerce pipelines.

Best for: Operational businesses with data already flowing that want a system built on it rather than a strategy deck.

Elsewhen is a London product consultancy working with technology and financial-services companies, pairing product design and engineering with AI and cloud delivery.

Best for: Financial institutions that need agentic AI shipped inside regulatory constraints—training through production.

Tom & Co is a London e-commerce agency building Adobe Commerce and headless storefronts for retail brands, with a separate AI practice covering generative imagery and workflow automation.

iCentric Agency is a London and Bedfordshire digital consultancy building custom platforms for enterprise clients, with machine-learning pricing, document processing and agentic tooling among its published specialisms.

Best for: Consumer and industrial brands that need marketing spend measured and modeled rather than an AI system built.

Push Group is a London performance marketing agency with an in-house innovation lab building AI agents, running generative engine optimization and AI-assisted research alongside paid media and SEO.

Best for: Organizations wanting a private, self-hosted generative AI workspace over their own documents rather than a public LLM.

Best for: UK small businesses that want a working system and a named person answering the phone.

Hexploits is a London software consultancy that builds AI platforms and cloud infrastructure for startups, taking product engineering from architecture through to production hosting.

Contra Agency is a London web design and digital marketing agency working with law firms, universities and public bodies, with an answer engine optimization practice aimed at visibility inside AI-generated search results.

Vention is a software engineering firm with a London office, running an AI Center of Excellence alongside its platform practice. Its AI work spans computer vision, retrieval systems, and agent development.

NOVOS is an employee-owned London e-commerce growth agency running search, digital PR and an AI-search practice aimed at getting retail brands cited in generated answers.

Transparity is a UK Microsoft partner running an AI consulting practice across agentic AI, Copilot Studio, and Azure AI Foundry. It holds the AI Platform on Microsoft Azure Specialisation and Microsoft Frontier Partner status.

Pixelette Technologies is a London technology firm founded in 2018, building computer-vision and data-automation systems alongside its wider engineering practice.

Softblues is a London AI implementation firm founded in 2014, building multi-agent pipelines, retrieval-augmented support agents, and voice agents for mid-market companies. It is a registered Anthropic Partner Network member.

Found is a London performance-marketing agency with a data and AI practice covering AI-search visibility, data science and marketing automation, built on its own Luminr and Everysearch tooling.

Engineering services group with a dedicated data, AI and machine-learning practice covering generative AI consulting and implementation, AI agents and MLOps. London office; registered in Malta with delivery centres across Ukraine, Poland, Bulgaria, Romania, Sweden, India and Colombia.

Marionete is a London data and AI engineering consultancy building enterprise data platforms, self-service data science environments and machine-learning systems for banks, brokers and industrial groups, with a nearshore delivery office in Lisbon.

Mercury Labs is a London senior-led AI consultancy working from discovery through production on machine learning, retrieval systems and data engineering, and an approved supplier on the Crown Commercial Service AI framework.

Old St Labs is a London product studio founded in 2020, building web and mobile applications with an AI software development line. It works largely with early-stage and scaling companies.

Opinov8 is a London-headquartered engineering firm founded in 2017, running an AI consulting and data practice and its own agent deployment platform alongside cloud and modernization services.

Molo Agency is an AI automation shop on the northern edge of London building agents and workflow automation into the systems small and mid-sized businesses already run.

ClickSlice is a London search agency running an answer-engine and generative-engine optimization practice alongside conventional SEO for small and mid-sized retailers.