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AI Companies in the UK: 2,100+ Active Firms (2026)
AI companies in the UK build machine-learning software, models and data systems for commercial, public-sector and regulated use cases.
Buying centres tend to split between technology teams procuring model infrastructure, operations teams buying automation and decision support, and regulated business units using analytics for risk, compliance, healthcare or employment workflows. Sales are mainly B2B and public-sector rather than consumer-facing, with buyers ranging from specialist SMEs testing applied models to mid-market operators and enterprise departments with procurement, security and governance checks. Engagements usually sit between software subscription, project-led implementation and embedded model licensing, so technical proof points, data access, auditability and accountability matter as much as product scope.
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2,105 AI companies are actively trading in the UK, a cohort that spans early commercial teams, mid-market software suppliers and larger applied-analytics operators. 227 have turnover above £5M, while 310 were incorporated since 2022, leaving the field weighted towards businesses that pre-date the most recent wave of public attention around generative systems. The reported employment footprint is 3,714 people, concentrated in firms with stated headcount rather than a broad labour-market estimate. That makes the list useful for finding operating AI suppliers, but it should not be read as a full measure of every AI-related role inside larger non-AI businesses.
The UK’s current AI regime is regulator-led rather than built around a dedicated AI statute. GOV.UK guidance frames supplier expectations through principles covering safety and security, transparency and explainability, fairness, accountability and governance, and contestability and redress, and describes implementation as voluntary and at regulators’ discretion within their existing remits. That creates a market structure in which obligations follow the use case: data protection, financial services, healthcare, product safety and employment deployments can each pull an AI supplier into different assurance, documentation or audit expectations.
Commercial maturity appears uneven. Many suppliers still look like specialist product or services hybrids, using implementation work to fund repeatable software, while a smaller group has moved into procurement-heavy enterprise and regulated-sector accounts. The scarcer scale-up cohort should make revenue quality, customer concentration and assurance processes more useful screening signals than model claims alone. Consolidation may come from buyers preferring fewer AI vendors, incumbent software providers adding embedded automation, and regulated customers asking for clearer accountability when model outputs affect decisions.
2,105
Active firms
2026
227
Above £5M turnover
Trading firms
310
Incorporated since 2022
Newer cohort
Key facts
About 10% of the trading cohort reports turnover above £5M (227 of 2,105 firms) — the rest sits below that revenue band.
14% of the cohort was incorporated since 2022 (310 firms), so a sizeable share is in its first few filing cycles.
The UK regulates AI through existing sector regulators rather than a single AI statute, so obligations tend to arise through data protection, financial services, healthcare, product safety or employment rules.
The 2023 white paper set out five cross-cutting principles, with 2024 regulator guidance describing implementation as voluntary and at regulators’ discretion.
GOV.UK’s Artificial Intelligence sector study 2024 estimated the wider UK AI sector at more than 5,800 companies, up 85% over two years.
GOV.UK estimated 2024 AI revenue at £23.9 billion, GVA at £11.8 billion and dedicated AI company investment at £2.9 billion.
In 2023, 61 notable AI models originated from US-based institutions, compared with 21 from the European Union.
Top UK AI companies
Whitespace Global Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops an AI software platform for regulated sectors that provides modular applications for analysis, collaboration and decision support. The system can be deployed on cloud, on‑premise, edge or…
Serves regulated, security-first organisations in defence, national security, government, civil service, financial services, emergency services and healthcare, targeting CTOs, CIOs, AI/ML leads,…
Financial Health
StrongStrong · Hiring · 13% CAGR over 4y
Location
HOLISTIC AI LIMITED
Trajectory
4y · 2021–NowFinancial sub-scores
Computed from 4 filingsDevelops software for AI governance that discovers and inventories AI systems, monitors their use, tests models for security and bias risks, and manages compliance workflows, policies, and audit…
Sells to enterprises adopting AI at scale, especially regulated organisations needing oversight and compliance evidence. Targets security, legal, risk, compliance, engineering and board stakeholders…
Financial Health
StableStable · Hiring · 178% CAGR over 3y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops AI-based decisioning software for insurance and banking, including rating engines, pricing optimisation, underwriting analytics, and product personalisation tools that support real-time…
Sells to B2B financial services organisations, including global insurers, brokers, MGAs, banks and lenders, particularly teams responsible for pricing, underwriting, rating, product design and…
Financial Health
StableStable · -58% CAGR over 4y
Location
Level E Research Limited
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsDevelops AI software for asset managers that automates investment decision‑making, portfolio management and regulatory compliance. Provides tools for trade surveillance, market modelling and…
Serves financial institutions, including asset managers, banks, wealth managers and investment platforms. Targets buy-side compliance and investment teams, with partners serving retail investors.
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 3y
Location
SPROUT.AI LIMITED
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsDevelops artificial intelligence software for the insurance industry that automates claims processing, policy coverage checking and fraud detection. The platform analyses claim data and documents and…
Sells to insurers, insurance service providers and MGAs across multiple lines, including health, life, motor, property, commercial, pet and travel, targeting claims, underwriting, operations, fraud…
Financial Health
WeakWeak · 0% CAGR over 3y
Location
Thetaray Private Limited
Trajectory
1y · 2025–NowDevelops AI-based software for financial crime compliance, including anti‑money laundering (AML) transaction monitoring, sanctions and customer screening, and customer risk assessment. Provides…
Serves banks, fintechs and other financial institutions, targeting AML, compliance and risk teams responsible for financial crime controls and customer risk management.
Financial Health
Insufficient historyInsufficient history
Location
CERTARA UK LIMITED
Trajectory
3y · 2020–NowFinancial sub-scores
Computed from 3 filingsProvides software and consulting services for pharmaceutical and biotechnology drug development, including biosimulation and pharmacokinetic modelling, clinical trial data analysis, regulatory…
Serves life sciences organisations, including biotech, pharmaceutical companies and CROs, across drug discovery, clinical development, regulatory, market access and commercial functions.
Financial Health
StrongStrong · Profitable, Growing, Hiring · 10% CAGR over 2y
Location
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops a data intelligence platform that provides data cataloguing, metadata management, governance, lineage tracking, and data quality tools. Software enables organisations to discover, document,…
Serves enterprise data, analytics, governance and AI teams in financial services, healthcare, insurance, manufacturing, retail, technology and the public sector, especially organisations with complex…
Financial Health
StrongStrong · Hiring · 37% CAGR over 5y
Location
FEEDZAI UK LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops AI-based software platform for banks and payment providers to detect and prevent fraud and financial crime. Provides transaction monitoring, identity verification, anti‑money‑laundering…
Serves B2B financial institutions and the public sector, including retail banks, corporate and commercial banks, merchant acquirers, payment service providers, core banking providers, and government…
Financial Health
StrongStrong · Hiring · 96% CAGR over 4y
Location
BABEL STREET ROSETTE LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops AI-powered risk intelligence software that collects and analyses multilingual digital data to identify threats, resolve identities, and assess vendor and supply‑chain risk. Provides tools…
Serves public-sector defence and law enforcement agencies, plus global enterprises and FinTech firms with analyst, security, compliance, supply chain risk, and investigations teams handling identity,…
Financial Health
StrongStrong · Hiring · 26% CAGR over 4y
Location
Finrege Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops regulatory compliance software for financial institutions and regulators. Platform provides tools for regulatory horizon scanning, change management, policy and control mapping, compliance…
Serves regulators, government bodies and global financial institutions, including banking and asset/investment management firms, targeting compliance, risk, policy and regulatory change teams.
Financial Health
HealthyHealthy · Hiring · 41% CAGR over 4y
Location
Unlikely Artificial Intelligence Limited
Trajectory
5y · 2023–NowFinancial sub-scores
Computed from 5 filingsDevelops artificial intelligence software designed to support decision‑making in sectors including accounting, financial services and insurance, with systems focused on explainability, auditability…
Serves B2B customers in accounting, financial services and insurance, targeting teams responsible for operational or financial decision-making that require auditable, controllable AI tools.
Financial Health
WeakWeak · Hiring · 42% CAGR over 3y
Location
WATERTRACE LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops AI‑enabled software that automates operational workflows for financial services organisations, including asset management, insurance, delegated underwriting and investment banking. The…
Serves B2B financial services organisations in regulated environments, including asset management, delegated underwriting, insurance, investment banking and claims management, targeting risk…
Financial Health
HealthyHealthy · -14% CAGR over 4y
Location
PERSONETICS TECHNOLOGIES (UK) LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops AI-powered digital banking software for banks and financial institutions. Provides platforms for personal financial management, transaction data enrichment and categorisation, customer…
Sells B2B to banks and financial institutions in global markets, targeting retail banking, deposits, customer engagement, digital banking and SMB/SME banking teams serving consumer and small-business…
Financial Health
HealthyHealthy · Growing, Hiring · 3% CAGR over 4y
Location
HOMEPPL LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops AI software that analyses documents to detect fraud and manipulation, extract structured data, and validate information against external sources. Used by financial services, lending and HR…
Serves regulated B2B organisations, especially risk, operations and compliance teams in fintech, lending, banking, real estate and HR that assess customer applications and supporting documents.
Financial Health
StableStable · -15% CAGR over 4y
Location
XPERTRULE SOFTWARE LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops artificial intelligence software platforms that create deterministic AI agents for enterprise decision‑making. Tools combine symbolic reasoning, knowledge models and language models to…
Sells to enterprises in regulated or mission-critical sectors, including compliance, advisory, manufacturing, technical support and operations teams needing auditable decision-making.
Financial Health
WeakWeak · 2% CAGR over 4y
Location
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides a subscription software platform delivering data, news and analytics on global debt markets. Uses AI to analyse bonds, loans, covenants and deal activity, supporting banks, investors and…
Serves B2B credit-market professionals globally, including banks, buyside investors, advisors and law firms, with users in origination, sales and trading, restructuring, securitization and private…
Financial Health
StrongStrong · Hiring · 87% CAGR over 5y
Location
Health Navigator Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops artificial intelligence tools and clinical coaching services for healthcare providers to identify patients at risk of hospital admission, support self‑management of long‑term conditions, and…
Serves NHS Integrated Care Systems, lead providers, acute hospitals and neighbourhood care teams, with patients at risk of hospital admission as service users.
Financial Health
DistressedDistressed · -12% CAGR over 4y
Location
OpenDialog AI Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops and deploys AI agents for insurance and other regulated industries. Software automates customer interactions such as quote generation, policy queries, re‑engagement and claims support, with…
Serves enterprise insurance organisations, brokerages and agencies operating regulated, high-volume customer journeys, with buyers including operations, sales and service leaders.
Financial Health
StrongStrong · Growing, Hiring · 24% CAGR over 2y
Location
Inv Group Holdings Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops and integrates AI workflow platforms and governance infrastructure for regulated organisations. Services include secure platform design, compliance and audit controls, governance frameworks,…
Serves UK public sector bodies and regulated organisations, including central government departments, local authorities and critical national infrastructure operators seeking compliant AI governance…
Financial Health
HealthyHealthy · Hiring · 6% CAGR over 4y
Location
NQUIRINGMINDS LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops software platforms for secure, distributed AI and data analytics from edge devices to cloud systems. Provides tools to deploy and manage AI agents, enable cross‑organisation data sharing,…
Serves public- and private-sector organisations adopting AI and secure data sharing, especially in smart cities, healthcare, industrial, agriculture, fintech, defence and security.
Financial Health
StrongStrong · Hiring · 15% CAGR over 4y
Location
PhysicsX Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops artificial intelligence software for engineering and industrial design. Provides a platform that combines machine learning with physics‑based simulation to support product design,…
Serves enterprise engineering and R&D teams in critical industrial sectors, including semiconductors, aerospace and defense, materials, energy and renewables, and automotive.
Financial Health
StrongStrong · Hiring · 135% CAGR over 2y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops artificial intelligence software for asset and wealth managers. Its platform provides market and portfolio analytics, portfolio construction and rebalancing tools, and automated portfolio…
Sells B2B to asset and wealth managers, investment managers and financial institutions in the US, UK and EU, including teams responsible for asset allocation, portfolio rebalancing, reporting and…
Financial Health
WeakWeak · 0% CAGR over 2y
Location
MESH AI LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDevelops and implements enterprise software solutions using artificial intelligence, machine learning and data analytics. Provides consulting, engineering and integration services to financial…
Serves large, highly regulated enterprises, particularly financial services institutions—banks, insurers and capital markets firms—and energy and utilities companies.
Financial Health
HealthyHealthy · Hiring · 69% CAGR over 3y
Location
Gorilla Technology UK Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops AI-based software and platforms for smart city and infrastructure management, including edge video analytics, surveillance systems, and security operations tools used in transportation,…
Serves governments, city authorities and enterprises worldwide, including public services, transport and logistics operators, ports, airports, healthcare organisations, schools, universities,…
Financial Health
StableStable · Hiring · 69% CAGR over 2y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops AI-powered video analytics software for security and surveillance. Products analyse CCTV and video streams to detect events, recognise faces, track people or vehicles, and support…
Serves public-sector and enterprise security teams, including airports, transport and road operators, government and smart-city agencies, critical infrastructure sites, retailers, commercial property…
Financial Health
WeakWeak · Hiring · 7% CAGR over 4y
Location
ORI INDUSTRIES 1 LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides AI cloud infrastructure and software for training, deploying and scaling machine learning models. Offers GPU compute instances, private cloud platforms, inference endpoints, model management…
Serves sovereign/public-sector organisations, telecoms operators and large enterprises building AI clouds, plus AI teams needing GPU capacity across sectors such as biotech, finance and sports…
Financial Health
StableStable · Hiring · 3% CAGR over 4y
Location
IMPULSE INNOVATIONS LIMITED
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsDevelops AI software that creates and manages automated “digital workers” to perform business processes such as compliance, finance operations, supply chain tasks and data workflows, with governance…
Serves enterprise teams in regulated and data-heavy industries, including healthcare and life sciences, retail and CPG, financial services, IT and tech, across compliance, procurement, supply chain,…
Financial Health
DistressedDistressed · -27% CAGR over 1y
Location
Agilysys UK Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops generative AI software tools and provides IT managed and professional services for public sector organisations, particularly local councils. Products automate tasks such as EHCP drafting,…
Serves UK local councils and public-sector organisations, particularly local authority leaders, IT teams, social care, SEND and frontline service teams.
Financial Health
HealthyHealthy · -59% CAGR over 5y
Location
SKYRAL DEFENCE LIMITED
Trajectory
1y · 2023–NowDevelops modelling and simulation software that creates synthetic environments and digital twins, integrating data visualisation and AI to support mission planning, training, infrastructure analysis,…
Targets enterprise, defence, government and national security customers worldwide, including teams responsible for mission planning, training, mobility infrastructure and business intelligence.
Financial Health
Insufficient historyInsufficient history
Location
Themis International Services Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides financial crime risk management tools including AML screening and monitoring software, AI‑assisted due diligence investigations, risk intelligence reports, compliance training, and advisory…
Sells to businesses of all sizes, from SMEs to corporates, plus some individuals, needing financial crime prevention support. Targets compliance, risk and due diligence users seeking AML, KYB,…
Financial Health
StableStable · Hiring · 44% CAGR over 4y
Location
DATAMINR UK LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDevelops AI software that analyses publicly available data to detect breaking events, emerging threats, and operational risks in real time. Provides alerting and intelligence platforms used by…
Serves large enterprises, government agencies, public sector emergency and law enforcement teams, newsrooms, nonprofits and humanitarian organisations, with buyers in corporate security, cyber risk,…
Financial Health
StrongStrong · Profitable · -8% CAGR over 3y
Location
Monolith AI Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops cloud-based AI software for engineering product development. Platform uses machine learning on test and simulation data to predict design performance, optimise test plans, validate results,…
Serves engineering, R&D and testing teams at enterprise manufacturers in automotive, battery, aerospace and defense, industrial and medical sectors, plus engineering consultancies and labs.
Financial Health
StrongStrong · Growing, Hiring · 21% CAGR over 4y
Location
SIRIUS CONSTELLATION LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops maritime surveillance technology and data analytics platforms that combine AI with coastal sensors, drones and vessel‑based systems to monitor maritime activity, generate real-time alerts,…
Serves government and public-sector maritime authorities, including coastguards, border/security agencies, search and rescue organisations and coastwatch bodies responsible for coastal waters, EEZs…
Financial Health
HealthyHealthy · Hiring · 25% CAGR over 4y
Location
CREOVAI UK LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides AI-powered conversation intelligence software for contact centres, analysing customer interactions, delivering real-time guidance to agents, automating quality assurance scoring, and…
Serves contact centres and customer experience teams in financial services, insurance, credit unions, consumer goods and services, utilities and healthcare, including operations, QA, sales, fraud and…
Financial Health
StrongStrong · Hiring · 20% CAGR over 4y
Location
RIMBAL HOLDINGS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops software systems, AI tools and operational infrastructure for financial advice firms. Provides platforms and services to manage clients, compliance and business operations, and operates the…
Serves UK financial advice firms and related B2B buyers, including independent financial advisers, adviser networks, multinational firms, private equity houses and fintechs.
Financial Health
StrongStrong · Growing, Hiring · 51% CAGR over 2y
Location
CultureAI Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops an AI usage control and security platform that monitors employee interactions with generative AI tools, detects risky prompts or data sharing, enforces role‑based policies, and provides…
Sells to B2B security and compliance leaders at organisations adopting workplace AI, especially in financial services, legal and consulting, healthcare, and SaaS/technology sectors.
Financial Health
StrongStrong · Growing, Hiring · 58% CAGR over 4y
Location
SOCIOVESTIX LABS LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops financial data science tools and analytics for investors, including machine learning models, investment signal analysis, sustainable finance and impact metrics, data quality testing, and…
Serves institutional investors, asset owners and other buy-side financial market participants, as well as sustainability-focused public, research and development partners.
Financial Health
StableStable · -73% CAGR over 4y
Location
Engine AI Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops software that aggregates and models capital markets data using AI and analytics. Provides SaaS tools, dashboards and APIs that integrate structured and unstructured financial data to…
Serves B2B capital markets firms, including retail investment platforms, fintechs, banks, research boutiques, and data or data-technology companies seeking analytics for trading and market…
Financial Health
StableStable · Hiring · 11% CAGR over 3y
Location
COVARIANT AI LTD.
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsDevelops artificial intelligence software for robotic automation in warehouses and fulfilment centres. Its platform trains and operates robots to identify, grasp and pick a wide range of items,…
Serves B2B customers: enterprise retailers, fulfilment companies and logistics providers operating warehouses with variable demand, high SKU complexity and labour gaps.
Financial Health
DistressedDistressed · -39% CAGR over 3y
Location
Ground Truth Intelligence Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides AI-powered platform and analyst-led services for global due diligence and third‑party risk assessment. Combines automated screening, intelligence gathering and investigation workflows to…
Serves compliance, risk, legal and investigations teams at global enterprises and risk consultancies managing complex third-party risk across jurisdictions and regulated industries.
Financial Health
StableStable · Hiring · 44% CAGR over 4y
Location
542 DIGITAL LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops bespoke fintech software and data platforms. Collects and processes large financial datasets, builds analytics and modelling tools, and integrates AI and LLM systems to automate analysis,…
Serves financial services businesses, including data vendors, trading desks, market analysts and teams handling financial data, analytics, monitoring, content and AI-driven workflows worldwide.
Financial Health
StrongStrong · Growing, Hiring · 17% CAGR over 4y
Location
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops data analytics software that enables organisations to model, analyse and visualise data and embed interactive analytics into applications. Platform includes AI‑driven tools, dashboards, data…
Serves B2B software teams, product leaders, developers and data teams in financial services, healthcare/pharma, supply chain, technology and manufacturing, especially organisations embedding…
Financial Health
HealthyHealthy · Hiring · 3% CAGR over 5y
Location
Simanalytica Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops decision intelligence software that integrates datasets, analytics, simulations and digital twins to support place‑based planning and infrastructure decisions. Platform connects and…
Serves local authorities, public-sector bodies and infrastructure or regeneration partners making place-based decisions on climate adaptation, net zero mobility, air quality, transport, carbon and…
Financial Health
StableStable · -5% CAGR over 4y
Location
Aptitude Advisors Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides data and technology consultancy services including data infrastructure design, AI and analytics development, system integration and migration, and technology strategy advice. Builds…
Serves B2B enterprise clients in complex, regulated sectors, including financial services, legal, biotechnology, pharma, healthcare and renewable energy, targeting senior technology, data and…
Financial Health
StrongStrong · Hiring · 7% CAGR over 4y
Location
Hawkrose Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops decision-support software and analytics tools for public and private sector organisations, including optimisation algorithms, machine learning models, digital twins and process digitisation…
Serves UK public and private sector organisations, particularly in aviation, public sector operations and social justice, targeting senior decision makers with complex operational and organisational…
Financial Health
StrongStrong
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDevelops AI-enabled legal software for law firms, supporting litigation and arbitration with tools for case management, document and transcript analysis, virtual hearings, workflow automation, and…
Sells B2B to law firms and legal teams, especially litigation and arbitration practices, partners, lead counsel, associates, legal innovation teams, paralegals and litigation support teams managing…
Financial Health
StrongStrong · Profitable, Growing · 4% CAGR over 2y
Location
PUZZEL LTD
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsDevelops customer experience and contact centre software, including AI-powered virtual agents, conversational analytics, knowledge and case management, workforce management, and tools that help…
Sells to businesses and public sector organisations running contact centres, especially CX and customer service teams in retail, travel, energy and utilities, banking, insurance, and government.
Financial Health
StableStable · -6% CAGR over 3y
Location
TRILATERAL RESEARCH LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsConducts research and develops software and advisory services focused on artificial intelligence, data protection, cybersecurity, and governance. Provides AI governance support, risk assessment,…
Serves public-sector bodies, government agencies and regulated organisations, including teams responsible for AI governance, data protection, cybersecurity, safeguarding, public safety and policy.
Financial Health
WeakWeak · -76% CAGR over 3y
Location
CREATEC LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsConducts research and development of imaging, robotics, radiation measurement and artificial intelligence technologies. Designs and commercialises systems and software for applications in sectors…
Serves global B2B and research clients in nuclear, defence and transport, including global brands, technology innovators, businesses and universities with complex technical challenges.
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
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How UK AI companies work and how to sell to them
What they do
Most AI suppliers make money by packaging models, workflow automation or decision-support components into repeatable software, then adding implementation where a customer’s data, systems or assurance requirements need work. Revenue is usually a mix of annual subscriptions, usage-priced access, embedded model licences and professional services around deployment, tuning and evaluation. Smaller deals often begin as paid pilots or discovery projects, while larger accounts move towards departmental contracts with security review, service levels and governance artefacts. Gross margin can depend on compute intensity, so sellers should listen for whether the firm owns reusable software or mainly sells bespoke analysis.
Who they sell to
Customers are usually businesses or public-sector bodies with a defined operational problem rather than general curiosity about AI. Typical buyer groups include CTOs, heads of data, product leaders, operations directors, risk and compliance teams, and finance leaders when automation affects cost or revenue controls. Technical users may run the evaluation, but procurement, security and legal teams often shape the final buying path. Early-stage suppliers tend to sell directly through founder-led or specialist sales, with proof-of-concept work used to prove fit. More mature vendors face RFPs, partner channels and framework buying, especially where the use case touches regulated decisions or citizen services.
What they buy
Most AI firms tend to spend on compute, cloud hosting, data storage, data engineering, model evaluation, monitoring and security. Tooling around privacy, identity, access control and audit trails matters because customers often ask how models were trained, tested and governed. Commercial teams usually need CRM, billing, customer support, proposal tooling and usage analytics as pilots become recurring contracts. External services can include legal advice on data rights and liability, accounting support for revenue recognition, insurance, technical recruitment, customer research and sector marketing. Teams selling into regulated markets may also buy certification, assurance and documentation support before procurement deadlines.
Why and how to sell to them
AI companies tend to evaluate new suppliers when customer demands outgrow ad hoc delivery, when compute costs start to squeeze margins, or when a regulated deployment exposes gaps in documentation, testing or accountability. Funding events, senior hires, new enterprise customers, public-sector tenders and moves from services work into repeatable software can all signal budget. Outbound tends to land better when it is tied to a specific constraint: shortening security reviews, improving model monitoring, reducing manual labelling effort, speeding implementation, or giving sales teams evidence that satisfies cautious buyers. Claims about generic AI uplift are less persuasive than proof that a process cost, risk or procurement blockage can be reduced.
How this list is built
Data sources
This list is built from UK Companies House filings, XBRL accounts data, and semantic analysis of each company's public website. Revenue and headcount figures come from the most recent filed accounts; where the company has not filed, values are estimated using a model trained on filed history and peer benchmarks and are labelled as estimates.
Classification
Rather than relying solely on SIC codes, Firmbase classifies each company semantically: the company's website is crawled, an AI model reads what the company actually sells, and the company is placed into the relevant industry and subsectors. SIC codes are used as one signal but not the only one. This means a company that registered under a generic SIC code but pivoted into (for example) fintech is correctly identified as fintech, not as its original SIC category.
Freshness
The underlying company data is refreshed from Companies House continuously; filings appear in the list within days of submission. The curated list ordering is regenerated when the underlying data moves meaningfully (company count changes by more than 5%, a new company enters the top-ranked segment, or the filed-revenue numbers for the top firms change). You can see the last-updated timestamp near the top of the page.
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