Companies Using LinkedIn Ads in London: 1,476 Active Firms (2026)
London companies using paid social advertising run professional-network campaigns and tracking tags on public websites across the capital.
Ownership usually sits between revenue operations, demand generation, talent acquisition and agency-side media teams, rather than pure brand marketing. The stack does a fairly specific job: match business audiences, launch sponsored content or lead forms, and pass conversion signals into analytics or lead-management workflows. Adoption tends to signal recurring paid-media budget, named campaign owners and a website able to handle consent, tagging and attribution. It is common among B2B software, consultancy and managed-services sellers, but also appears in recruitment and event-led go-to-market models where the buyer or candidate can be targeted by role, seniority or industry.
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London has 1,476 active trading companies running professional-network advertising and tracking tags, making this a sizeable adoption cluster rather than a narrow ad-tech niche. Reported headcount totals 5,107 people, so the employment footprint is not trivial even though the users span small specialist teams and larger workforces. Sector tags point towards B2B demand generation, especially SaaS, AI and machine-learning, marketing agencies, managed IT services and management consulting. The website stack also tends to include tag management, analytics, content-management and security layers, which fits organisations measuring campaigns beyond simple click-through reporting.
UK online and B2B advertising sits between advertising self-regulation and data/privacy law. GOV.UK describes the CAP non-broadcast code as covering print, online, sales promotion and direct marketing, with enforcement by the Advertising Standards Authority. The ASA presents the CAP Code as the rule book for non-broadcast advertisements, sales promotions and direct marketing, applying to advertisers, agencies and media owners. For tracking tags, cookies and direct-marketing hand-offs, the ICO points organisations to PECR and data-protection law, including technologies that store or access information on a person’s device. The ICO has also flagged review work after the Data (Use and Access) Act 2025 came into law on 19 June 2025.
Adoption appears likely to be shaped less by novelty than by governance and integration work. Companies running this stack tend to need clearer consent journeys, cleaner audience governance and better links between media spend, pipeline reporting and recruitment outcomes. Bundled advertising and analytics products may make the technical setup easier, but they also raise questions about lock-in and attribution bias. Smaller users may keep agency support for campaign execution, while more mature B2B sellers bring measurement and revenue-operations work in-house. Consolidation among marketing tools could reduce independent decision points inside the stack.
What’s in the file
One row per company, 50+ columns — everything below plus each company’s verified directors, from Companies House filings.
Company data
Verified directors — included
Adoption by company size
Adoption of LinkedIn Ads rises with company size across the trading companies in this cohort. 0.1% of the 532,485 companies with under 10 employees run LinkedIn Ads (765 detected). 2.2% of the 15,364 companies with 10–50 employees run LinkedIn Ads (334 detected). 3% of the 1,763 companies with over 50 employees run LinkedIn Ads (53 detected). That is a 2.9% gap between the over 50 employees and under 10 employees bands.
1,476
Active firms
2026
132
Above £5M turnover
Trading firms
6
Median headcount
Filed accounts
3,524
Verified directors
Across this cohort
Top companies using LinkedIn Ads in London
Ranked by sales-readiness score: an AI model assesses what each company does, its sector and size, and scores its overall fit. Best-fit prospects appear first.
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Computed from 4 filingsProvides B2B lead generation and demand generation services using AI‑driven data analysis, predictive personalisation and account‑based digital advertising. Combines proprietary technology with…
Serves B2B sales and marketing teams, particularly large technology companies, seeking support with lead generation, demand generation and account-based customer acquisition.
Financial Health
StrongStrong · Hiring · 17% CAGR over 3y
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Computed from 5 filingsProvides a B2B social media management and analytics platform. Tools support publishing, social listening, employee advocacy, and performance measurement, with integrations to CRM and marketing…
Serves B2B marketing, sales/revenue and HR teams at data-driven organisations, especially in tech/software, business services, legal services and manufacturing, with a global customer base of B2B…
Financial Health
HealthyHealthy · Hiring · 35% CAGR over 4y
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Computed from 5 filingsOperates an online wholesale marketplace connecting independent retailers with brands and suppliers. The platform enables businesses to browse and order wholesale products including homeware, beauty…
Serves independent retailers buying wholesale stock for resale, and independent consumer goods brands seeking retailer customers, across homeware, gifts, fashion, beauty, food, pets and kids in the…
Financial Health
StrongStrong · Growing, Hiring · 92% CAGR over 4y
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Computed from 5 filingsProvides B2B marketing services including content syndication, programmatic lead generation, intent‑based targeting and lead qualification. Distributes marketing content across digital networks to…
Serves B2B growth marketers, sales professionals and demand generation leaders at B2B brands, agencies and channel partners, including teams managing complex buying committees and global pipeline…
Financial Health
HealthyHealthy · Hiring · 46% CAGR over 4y
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Computed from 5 filingsProvides digital marketing services including paid search and paid social advertising, YouTube and video campaigns, shopping feed management, organic social media, analytics and measurement, and…
Serves B2B and consumer-facing businesses, especially ecommerce retailers and lead-generation companies, targeting heads of ecommerce, digital marketing managers and in-house marketing teams.
Financial Health
StrongStrong · Hiring · 12% CAGR over 5y
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Computed from 5 filingsProvides digital marketing services including search engine optimisation, paid search advertising, digital PR and social media marketing. Uses data and AI tools to improve brand visibility across…
Serves B2B marketing teams at consumer, ecommerce and lifestyle brands seeking external search, social and PR agency support, including organisations operating across multiple markets.
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StrongStrong · Growing, Hiring · 17% CAGR over 4y
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Computed from 5 filingsProvides data and digital media consulting services, helping advertisers implement and manage advertising platform technologies, develop data strategies, run and measure digital marketing campaigns,…
Serves enterprise brands and marketing teams seeking data strategy, digital media transformation, campaign measurement and e-commerce advertising support, including organisations managing first-party…
Financial Health
StrongStrong · Hiring · 48% CAGR over 6y
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Computed from 5 filingsProvides influencer marketing services for brands, including campaign strategy, creator partnerships, paid social advertising, community management, and social video production. Uses proprietary…
Serves global brands and fast-growing startups, particularly consumer-facing companies in technology, fashion, food, beauty and lifestyle sectors, with buyers likely in marketing, brand, social media…
Financial Health
StrongStrong · Growing, Hiring · 22% CAGR over 4y
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Computed from 5 filingsDevelops and supplies core insurance software platforms for insurers, brokers and managing general agents. Products support policy administration, claims management, billing, underwriting,…
Serves B2B insurance organisations, including Lloyd’s and London Market syndicates, carriers, MGAs, brokers, and global insurers needing core operational platforms and market-specific technology.
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StrongStrong · Growing, Hiring · 12% CAGR over 4y
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Computed from 4 filingsOrganises industry conferences, summits, webinars and workshops that connect professionals, investors and experts in technology, healthcare, legal and consumer sectors, providing research-driven…
Serves B2B audiences: executives, founders, investors and professionals in health, technology, legal/compliance and consumer sectors, especially early adopters and growth-market leaders seeking…
Financial Health
HealthyHealthy · -81% CAGR over 3y
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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
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Computed from 5 filingsProvides marketing and communications services including brand strategy, advertising, public relations, digital marketing, influencer marketing, corporate communications, crisis management, investor…
Serves B2B and B2C brands, associations and organisations worldwide across consumer, health, technology, financial services, education, energy, manufacturing, travel, tourism, sustainability and…
Financial Health
StableStable · Hiring · 43% CAGR over 4y
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Computed from 3 filingsProvides business process and digital operations services including customer experience management, financial services operations, financial crime compliance, data and analytics, digital marketing,…
Serves large enterprises and Fortune 500 clients in banking, financial services and insurance, telecom, media, entertainment, fashion, luxury, high-tech, manufacturing, distribution, retail and…
Financial Health
StrongStrong · Growing, Hiring · 29% CAGR over 2y
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Computed from 5 filingsProvides media planning and buying across online and offline channels, including search engine optimisation, paid and organic search strategy, data analytics, and content strategy. Develops…
Serves brands and marketing teams, particularly in property and travel, including developers, shared ownership providers, airlines and other consumer-facing organisations.
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HealthyHealthy · Hiring · 29% CAGR over 4y
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Computed from 5 filingsProvides influencer marketing services including campaign strategy, creator partnerships, social media marketing, paid social advertising, and content production for brands, managing campaigns across…
Serves consumer and B2B brands, especially marketing teams in ecommerce, fashion, travel, beauty, luxury, gaming, food and beverage, and sports sectors.
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HealthyHealthy
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Computed from 5 filingsProvides marketing compliance and promotional campaign services for brands and agencies. Designs and administers prize promotions, competitions and prize draws, drafts terms and conditions, builds…
Serves B2B marketing teams at global consumer brands and agencies, especially FMCG and CPG companies running prize promotions, on-pack campaigns, social media draws, competitions and…
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HealthyHealthy · -66% CAGR over 4y
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Computed from 5 filingsProvides flexible funding products for small and medium-sized businesses, including revolving credit facilities and debt consolidation lines. Offers tools and resources such as performance…
Serves UK SMEs and founders of growing businesses, with partner channels and introducers also addressed for referrals and business support.
Financial Health
StrongStrong · Growing, Hiring · 43% CAGR over 4y
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Computed from 3 filingsDevelops governance, risk and compliance (GRC) software platform that automates risk management, compliance tracking, internal audit, incident management, data privacy and regulatory reporting.…
Serves enterprise and complex businesses with governance, risk, compliance, internal audit, information security, data privacy and regulatory reporting teams, including organisations managing…
Financial Health
StrongStrong · Hiring · 52% CAGR over 2y
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Computed from 5 filingsOrganises international conferences, exhibitions and awards for the sports betting, gaming and iGaming industries. Produces large-scale events featuring speakers, panel discussions, networking…
Serves B2B senior executives, exhibitors and delegates in the global sports betting, iGaming and gaming sectors, including sportsbook, casino, affiliate, payments, regulation, fintech and lottery…
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StrongStrong
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Computed from 5 filingsProvides digital analytics and consumer insight services by analysing online data such as search, social media, CRM, reviews and web behaviour. Develops data, analytics and AI solutions and advises…
Serves B2B organisations needing digital consumer and category insight, including FMCG, beverage, wellbeing and telecoms/enterprise teams, typically supporting strategy, innovation, customer…
Financial Health
StrongStrong · Growing, Hiring · 57% CAGR over 4y
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Computed from 4 filingsOperates digital platforms and services focused on the over‑50s market, including a job board for candidates and employers, a consumer content and membership platform, and enterprise services helping…
Sells to a mix of B2B and B2C customers focused on the over-50s market: large global corporations seeking to attract over-50s talent and consumers, hirers and job candidates, and individual over-50…
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StrongStrong · Growing, Hiring · 85% CAGR over 3y
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Computed from 4 filingsProvides IT and digital technology services including application development, systems integration, application management, testing and support. Also delivers cloud, data analytics, AI, cybersecurity…
Serves large enterprises on a B2B basis, particularly major organisations in banking, capital markets, media, energy, healthcare, insurance, life sciences, manufacturing, retail, travel and…
Financial Health
StrongStrong · 38% CAGR over 2y
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Computed from 5 filingsProvides marketing and communications services including brand strategy, campaign planning, design and content creation. Develops and delivers integrated campaigns across digital, direct marketing,…
Serves B2B clients including brands and marketing teams in travel, retail, financial services, leisure and destination sectors, from large corporates to shopping and destination operators.
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StrongStrong · Growing, Hiring · 12% CAGR over 4y
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Computed from 5 filingsProvides an online platform for businesses to send employee and client gifts via links without collecting delivery addresses. Offers gift cards, physical gifts and choice-based rewards, with tools…
Serves UK businesses and public sector organisations, especially HR and People teams, sales and marketing teams, and customer-facing teams managing recognition, client gifting, rewards, incentives,…
Financial Health
StrongStrong · Growing, Hiring · 13% CAGR over 4y
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Computed from 5 filingsDevelops customer relationship management software for B2B enterprises. Provides a digital platform for conducting business reviews, collecting client feedback, tracking NPS and CSAT scores,…
Sells to B2B enterprises with key-account and customer success teams, particularly in facilities management, contract catering, BPO, logistics and manufacturing, that manage customer reviews and…
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StrongStrong · Growing, Hiring · 55% CAGR over 4y
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Computed from 5 filingsProvides business and technology consulting services including digital transformation, systems integration, data analytics, and cloud engineering. Supports implementation and optimisation of…
Serves enterprise businesses in customer-centric sectors, including retail and specialty brands, logistics and transport, FMCG, financial services and fintech, hospitality, travel, leisure, media and…
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StrongStrong
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Computed from 5 filingsProvides outsourced business process services including customer support, content moderation and trust and safety operations. Also supplies AI data annotation, model evaluation and deployment…
Serves businesses in technology, social media, gaming, financial services, healthcare, retail/ecommerce, mobility, logistics and travel, including teams responsible for customer experience, AI…
Financial Health
StrongStrong · Hiring · 50% CAGR over 4y
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Computed from 5 filingsProvides a SaaS platform for financial markets that captures, standardises and distributes messaging and data in real time. Enables workflow automation and data sharing across chat, Excel, APIs and…
Serves capital markets businesses, including sell-side and buy-side firms, banks, brokers, asset managers, hedge funds, exchanges, trading firms, and financial technology or data providers across…
Financial Health
StrongStrong · Hiring · 25% CAGR over 4y
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Computed from 3 filingsDevelops financial compliance and client lifecycle management software for banks and financial institutions. Provides tools for client onboarding, KYC checks, identity verification, transaction…
Serves financial institutions and regulated firms, including corporate, commercial, retail and private banks, wealth managers, asset managers, asset servicers, fintechs, and energy and commodities…
Financial Health
StrongStrong · Profitable, Growing, Hiring · 15% CAGR over 2y
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Computed from 5 filingsProvides digital identity verification and compliance software for businesses. Offers KYC, KYB and AML screening, document and face verification, liveness checks, transaction monitoring, and fraud…
Serves B2B organisations with online customer onboarding and compliance needs, including banks, fintechs, crypto exchanges, forex platforms, gaming operators, gig-economy firms, marketplaces and…
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StrongStrong
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Computed from 4 filingsDevelops software platforms for asset managers and private markets firms to manage investors, fundraising and fund operations. Provides tools for datarooms, electronic subscriptions, investor…
Serves B2B financial services clients, including private markets and asset managers, private wealth firms, banks, and asset management service providers such as placement agents, fund administrators,…
Financial Health
StrongStrong · Growing, Hiring · 59% CAGR over 3y
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Computed from 2 filingsProvides travel and lifestyle concierge services delivered through a technology platform and lifestyle managers. Arranges travel, dining, entertainment and other personal services for members,…
Serves private and retail banks, premium payment card providers, luxury brands and corporates targeting affluent or high-net-worth customers, plus affluent individuals seeking personal membership.
Financial Health
HealthyHealthy · Profitable · -2% CAGR over 1y
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Computed from 4 filingsDevelops and provides a digital experience platform used to build and manage websites and online services. Offers content management, AI-powered search and chatbots, web components, form builders,…
Sells to enterprise organisations, especially government bodies, higher education institutions, professional services firms and utilities, targeting digital, content and customer experience teams.
Financial Health
StrongStrong · Hiring · 9% CAGR over 3y
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Computed from 5 filingsDevelops AI-powered market research software that analyses consumer behaviour and feedback. Provides tools including facial coding, eye tracking, speech transcription, sentiment analysis, surveys,…
Serves B2B market research, consumer insights and marketing teams at brands and research agencies running quantitative and qualitative studies, creative testing, UX testing and customer journey…
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StrongStrong · Growing, Hiring · 13% CAGR over 4y
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Computed from 4 filingsDevelops cloud-based recruitment software including applicant tracking, CRM, recruitment marketing and analytics tools. Platform posts jobs to boards, manages candidate pipelines, matches candidates…
Serves UK recruitment and staffing agencies, plus in-house HR and talent acquisition teams across sectors, including recruiters responsible for candidate pipelines, client accounts and hiring…
Financial Health
StrongStrong · Growing · 1% CAGR over 3y
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Computed from 5 filingsProvides cloud-based email marketing and transactional email software with drag‑and‑drop design tools, automation, segmentation, A/B testing, analytics, and developer APIs/SMTP services for sending,…
Serves B2B marketing and developer teams at small businesses, technology companies, agencies, enterprises, franchises and real estate firms, plus ecommerce teams using platforms such as Shopify and…
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StrongStrong · Hiring · 34% CAGR over 4y
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Computed from 5 filingsDevelops identity verification and KYC software that captures and analyses ID documents, biometrics and payment cards. Provides tools for document verification, liveness and deepfake detection,…
Serves B2B customers in financial services, payments, crypto, marketplaces, healthcare, telecoms, hospitality and travel, and iGaming, especially teams responsible for onboarding, compliance, fraud…
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StrongStrong
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Computed from 5 filingsConnects businesses with creative, branding, digital and marketing agencies. Matches clients with shortlisted agency partners for projects such as brand strategy, web design, product development,…
Serves B2B clients of all sizes, from startups to household-name brands, typically founders and marketing leaders seeking creative, branding, digital, product, social, growth or marketing agency…
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StrongStrong · Growing, Hiring · 29% CAGR over 4y
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Computed from 3 filingsProvides outsourced customer contact and telemarketing services including inbound and outbound call handling, customer support, digital marketing and AI-enabled customer experience management. Also…
Serves large organisations and public sector bodies worldwide, including automotive, travel, financial services, insurance, healthcare, retail/e-commerce, telecoms, media, technology and utilities.
Financial Health
HealthyHealthy · Hiring · 29% CAGR over 2y
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Computed from 3 filingsDevelops cloud-based management information and finance software for education institutions. Provides systems for pupil data management, school administration, accounting, parent and student portals,…
Serves education-sector organisations, including primary and secondary schools, multi-academy trusts, SEND and all-through schools, maintained schools, local authorities and school finance or…
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StrongStrong · Profitable
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Computed from 5 filingsProvides online software platform for sourcing and analysing land and property development opportunities. Aggregates planning, ownership and market data, with tools for site appraisal, mapping…
Serves UK property and land professionals: developers, land sourcers, land and new homes agents, planners, architects, consultants, energy and utility providers, and commercial real estate or retail…
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StrongStrong · Growing, Hiring · 88% CAGR over 4y
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Computed from 2 filingsProvides higher education in business and management, offering undergraduate and postgraduate degrees including BBA, MSc and MBA programmes. Delivers multi‑city study options and exchange…
Serves prospective undergraduate and postgraduate students, MBA candidates and working professionals seeking UK-registered business, management, data science, finance and executive education with…
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StrongStrong · Hiring · 41% CAGR over 1y
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Computed from 5 filingsProvides a credit risk monitoring platform that analyses financial, non‑financial and macroeconomic data to generate company risk profiles, support loan origination and portfolio monitoring, and help…
Serves B2B organisations with borrower or counterparty credit exposure, including lenders and finance teams managing origination, portfolios and regulatory credit-risk requirements.
Financial Health
StrongStrong · Hiring · 24% CAGR over 4y
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Computed from 5 filingsProvides recruitment and staffing services placing permanent, contract, and executive roles. Focuses on sectors including energy and utilities, engineering and renewables, technology, insurance,…
Serves companies hiring specialist permanent, contract, executive and project talent, plus candidates, across energy and utilities, renewables, technology, MEP/FP engineering, insurance, commodities…
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StrongStrong · Growing, Hiring · 37% CAGR over 5y
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Computed from 5 filingsProvides consulting, implementation and managed services for the ServiceNow platform. Develops workflow applications, automates business processes, supports platform operations, and assists…
Serves organisations using or adopting ServiceNow, including enterprises and public sector bodies in energy and utilities, legal, rail and transport that need platform implementation, managed service…
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StrongStrong · Growing, Hiring · 37% CAGR over 4y
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Computed from 2 filingsProvides technology and operational support for a securities finance platform, enabling the arrangement and processing of securities lending and financing transactions, including automated trading,…
Serves global financial institutions active in securities finance, including agent lenders, broker-dealers, beneficial owners, repo and collateral desks, and trading, operations, compliance and data…
Financial Health
HealthyHealthy · Profitable, Hiring · 12% CAGR over 1y
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Computed from 4 filingsProvides enterprise software solutions and consulting for asset‑intensive industries. Implements and supports systems for financial management, asset management, ESG reporting and procurement using…
Serves asset-intensive businesses globally, especially energy, transportation, mining and extraction companies, plus service providers to those sectors, targeting finance, asset management, ESG and…
Financial Health
StrongStrong · Growing, Hiring · 5% CAGR over 3y
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Computed from 5 filingsProvides a market and competitor intelligence platform that collects and analyses data on competitors, products, marketing activity and financial results. Uses AI tools to monitor markets, generate…
Serves B2B organisations seeking competitor and market intelligence, particularly marketing, product, strategy, sales and finance teams responsible for revenue growth, product roadmaps and market…
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StrongStrong · Growing, Hiring · 59% CAGR over 4y
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Computed from 5 filingsProvides research, benchmarking, and advisory services focused on data and artificial intelligence leadership. Publishes reports and insights, operates professional networks and events, and runs…
Serves data and AI leaders and their teams in large organisations, including senior data, analytics, automation and technology executives across sectors such as aviation, energy, retail, media and…
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StrongStrong · Growing, Hiring · 25% CAGR over 4y
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Computed from 5 filingsDevelops data analysis and reporting software for market research. The platform automates survey data cleaning, statistical testing, segmentation, and methods such as regression, MaxDiff and…
Serves B2B market researchers, insights analysts and research teams in agencies and client-side organisations analysing survey, tracking, brand, advertising, customer feedback and segmentation data.
Financial Health
HealthyHealthy · 0% CAGR over 5y
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Key facts
About 8% of the trading cohort reports turnover above £5M (132 of 1,476 firms) — the rest sits below that revenue band.
10% of the cohort was incorporated since 2022 (158 firms), so a sizeable share is in its first few filing cycles.
Tag-management tools appear on 64.6% of the London professional-network advertising cohort, while web-analytics tags appear on 58.2%.
SaaS is the largest overlapping sector tag at 26.8%, followed by AI & Machine Learning at 11.2%, marketing agencies at 10.8%, IT services and managed services at 10.5%, and management consulting at 10.4%.
The UK digital ad market reached £40.5 billion in 2025, up 10% year on year.
The ASA enforces the CAP Code for non-broadcast advertising, sales promotions and direct marketing across print and online activity.
The ICO points organisations using tracking tags and cookies to PECR and data-protection law, with device-access guidance under review after the Data (Use and Access) Act 2025 came into law on 19 June 2025.
What else do LinkedIn Ads users run?
Share of the 1,476 LinkedIn Ads-running UK companies where each technology was also detected. As of June 2026.
Who runs LinkedIn Ads in the UK?
By sector
Sectors overlap, so shares need not sum to 100%.
By financial health
From filed accounts; firms with fewer than two filings show as insufficient history.
6
Median headcount
£618.3K
Median UK turnover
8.9%
Above £5M turnover
158
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 3,156 companies, alongside financials and websites, in one Excel + CSV file.
How LinkedIn Ads usage is detected
Company data
Detected companies are joined to UK Companies House records and XBRL accounts data. 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.
Detection
Firmbase crawls the public website of actively-trading UK companies and fingerprints the technologies present: tracking scripts, embedded forms, chat widgets, CMS markers and similar signatures. A company is included in this list when one or more of the technology's signatures are found on its site; closely-related variants of the same product are grouped under one name. Detection covers what is visible on the public web — a company using the technology purely internally, with no website footprint, will not appear. Counts are therefore a conservative floor, not a ceiling.
Freshness
Websites are re-crawled on a rolling basis and the underlying company data is refreshed from Companies House continuously; filings appear within days of submission. The list and its statistics are regenerated when the detected cohort moves meaningfully. You can see the last-updated timestamp near the top of the page.
LinkedIn Ads is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
LinkedIn Ads elsewhere
Frequently asked questions
How many companies in London use LinkedIn Ads?
How is LinkedIn Ads usage detected?
What kinds of companies use LinkedIn Ads in London?
What do LinkedIn Ads users in London also run?
How fresh is this data?
Can I get contact details for these companies?
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