B2B Companies Using StackAdapt in the UK: 54 Active Firms (2026)
B2B companies in the UK using demand-side advertising technology run paid media programmes for business audiences.
Programmatic demand-side platforms tend to sit with marketing operations rather than general advertising spend: they are bought to target named accounts, retarget high-intent visitors and measure pipeline contribution across longer sales cycles. For business-to-business suppliers, adoption usually signals an in-house performance-marketing function or a retained agency relationship, plus enough budget to test audiences beyond search and social. The commercial motion is mostly mid-market and enterprise oriented, with sales teams expecting campaign evidence that can be tied back to account acquisition, lead quality and repeatable conversion workflows.
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The UK adoption picture is small and selective: 54 actively trading B2B firms are running this demand-side advertising stack. Reported employment across the cohort is 2,790 people, pointing to a user base that is not just micro-business experimentation. Within detected advertising technologies for B2B firms, the platform sits ninth, with a 0.6% share against a denominator of 8,627. Registered-region skew is concentrated in London (25.9%) and the South East (18.5%), followed by the North West (14.8%), West Midlands (9.3%) and South West (7.4%).
B2B marketing is not a single licensed UK activity, so compliance depends on what each buyer actually does: financial services, telecoms, professional services and other regulated activities pull in their own rulebooks. For demand generation, the relevant baseline is the ICO’s treatment of PECR and UK GDPR. PECR covers live and automated calls, electronic mail and fax. Corporate-subscriber emails and texts do not need PECR consent, but senders must identify themselves and offer a valid opt-out route; live calling requires CTPS and TPS screening where objections may exist.
Adoption appears likely to stay concentrated among companies with a defined demand-generation function, rather than spreading evenly across all business-to-business suppliers. The cohort tends to look sales-led and mid-market oriented, which suits account-based paid media but also raises expectations around attribution, consent handling and opt-out hygiene. Agency-managed deployments may persist where internal teams lack media-buying depth. Over time, pressure to consolidate martech stacks could favour platforms that integrate with CRM, analytics and content workflows, while lighter advertisers remain with simpler channels.
Adoption by company size
Adoption of StackAdapt rises with company size across the trading UK B2B companies in this cohort. 0% of the 76,784 companies with under 10 employees run StackAdapt (35 detected). 0% of the 31,788 companies with 10–50 employees run StackAdapt (12 detected). 0.2% of the 3,773 companies with over 50 employees run StackAdapt (6 detected). That is a 0.2% gap between the over 50 employees and under 10 employees bands.
54
Active firms
2026
0.6%
Of detected Advertising share
UK B2B
6
Median headcount
Filed accounts
138
Verified contacts
Across this cohort
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Key facts
About 22% of the trading cohort reports turnover above £5M (12 of 54 firms) — the rest sits below that revenue band.
3% of the cohort was incorporated since 2022 (2 firms), so a sizeable share is in its first few filing cycles.
Among B2B firms with a detectable advertising system, this demand-side platform accounts for 0.6% (54), behind two much more common paid-media systems at 53.2% (4,593) and 47.9% (4,136).
Registered addresses skew toward London at 25.9% (14), followed by the South East at 18.5% (10) and the North West at 14.8% (8).
The surrounding web stack is tag-manager-led: 75.9% (41) also run a tag-management system, 74.1% (40) run a content-management system and 63.0% (34) use a web-security or delivery layer.
Sector overlap is visible: 31.5% (17) carry a SaaS tag, while marketing agencies account for 13.0% (7).
ICO guidance treats B2B email to corporate subscribers differently under PECR, but identity disclosure, a valid opt-out address and UK GDPR duties still apply where personal data is processed.
Advertising market share among UK B2B
Share of the 8,627 UK B2B with a detectable system. As of June 2026.
What else do StackAdapt-running B2B run?
Share of the 54 StackAdapt-running UK companies where each technology was also detected. As of June 2026.
Where StackAdapt B2B are, and how healthy they look
By region
By registered-office region; companies without a regional match count toward Rest of UK.
By financial health
From filed accounts; firms with fewer than two filings show as insufficient history.
6
Median headcount
£959.4K
Median UK turnover
22.2%
Above £5M turnover
2
Incorporated since 2022
138 verified decision-maker contacts
across these 54 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK B2B using StackAdapt
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.
Financial sub-scores
Computed from 4 filingsDevelops and operates a B2B advertising platform that uses data and AI to identify target business audiences, run advertising campaigns across digital and media channels, and provide account‑level…
Serves B2B marketing teams and advertisers at companies seeking to reach business decision-makers, including marketing directors and demand generation teams using paid media across social, search,…
Financial Health
StrongStrong · Hiring · 78% CAGR over 3y
Location
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Financial sub-scores
Computed from 3 filingsProvides managed B2B digital advertising services including account-based marketing insights, audience targeting, programmatic media buying and campaign execution across display, video, audio and…
Serves B2B marketing and advertising teams at businesses seeking to reach target accounts and buying committees across digital channels, including marketers running account-based, programmatic and…
Financial Health
StableStable · -74% CAGR over 2y
Location
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Financial sub-scores
Computed from 4 filingsProvides data‑driven digital marketing services including display, social media and PPC advertising, audience data building, and retargeting. Also offers SEO, website optimisation, creative design,…
Serves businesses and advertisers across multiple industries that need targeted digital campaigns, audience data, creative support and performance reporting for their products or services.
Financial Health
WeakWeak · Hiring · 14% CAGR over 3y
Location
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Computed from 5 filingsDevelops website conversion and marketing software that helps businesses turn website visitors into leads. Provides tools including chatbots, personalised on-site messages, interactive forms, and…
Serves B2B marketing, sales, recruitment and customer support teams at companies that rely on websites for lead generation, customer acquisition, hiring and service, plus agency and freelancer…
Financial Health
WeakWeak · Hiring · 41% CAGR over 5y
Location
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Financial sub-scores
Computed from 3 filingsProvides cloud-based software for uploading, storing, managing, transforming and delivering images and videos. Offers APIs, digital asset management tools and workflow automation to optimize media,…
Sells to developers, product and engineering teams, marketers, IT and CX teams at enterprise and high-growth companies, especially in e-commerce, media and entertainment, retail, and travel and…
Financial Health
StableStable · 0% CAGR over 2y
Location
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Computed from 5 filingsProvides a programmatic advertising platform that enables agencies and brands to plan, buy, and optimise digital ad campaigns. Offers AI‑driven targeting, campaign management and analytics across…
Serves advertising agencies, brands and in-house digital marketing teams running programmatic campaigns, across sectors including B2B, political, retail, travel, healthcare, finance and regulated…
Financial Health
StrongStrong · Growing, Hiring · 52% CAGR over 4y
Location
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Computed from 5 filingsProvides digital marketing services for B2B companies, including SEO, paid search and social advertising, account-based marketing, content strategy, remarketing, conversion rate optimisation,…
Serves mid-market and enterprise B2B technology companies, particularly marketing and growth leaders responsible for demand generation, demand capture and full-funnel performance across multiple…
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 4 filingsProvides cloud-based customer experience and contact centre software. Offers AI-powered tools for omnichannel customer engagement, automation, workforce engagement management, customer journey…
Serves mid-market and large enterprises and public sector organisations with contact centres, including banking, healthcare, retail, insurance and government teams.
Financial Health
StableStable · 0% CAGR over 3y
Location
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Computed from 5 filingsDevelops infrastructure engineering software used for design, modelling, analysis and management of built assets. Products support CAD modelling, structural and geotechnical analysis, rail and road…
Serves architects, engineers, constructors, engineering firms, and infrastructure owner-operators across transportation, water, energy, mining, utilities, cities, airports, bridges, rail, road, and…
Financial Health
WeakWeak · -64% CAGR over 5y
Location
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Computed from 3 filingsProvides account-based marketing services for enterprise clients including 1:1 and 1:few campaigns, demand and lead generation, account selection, marketing technology integration, sales enablement,…
Serves B2B mid-market and enterprise sales and marketing teams, especially in industrial manufacturing, technology, SaaS, cybersecurity, medical/pharmaceutical and financial services sectors.
Financial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
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Computed from 5 filingsProvides digital marketing services for eCommerce brands, including search engine optimisation, PPC and paid social advertising, affiliate marketing, content marketing, digital PR, analytics, and…
Serves B2B eCommerce brands and online retailers, targeting marketing and eCommerce teams that need agency support across growth, performance, retention and stakeholder reporting.
Financial Health
HealthyHealthy · -58% CAGR over 4y
Location
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Computed from 5 filingsProvides digital security certificates and certificate lifecycle management software. Issues SSL/TLS certificates, code signing and S/MIME email certificates, and offers automated platforms to…
Serves businesses of all sizes, especially enterprise IT, identity and security teams, as well as smaller organisations buying SSL, code-signing, email security and brand certificates online.
Financial Health
HealthyHealthy · -45% CAGR over 4y
Location
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Computed from 5 filingsProvides digital strategy and marketing services, including brand strategy, creative design, web development, and digital media planning and management. Works with businesses to plan, build, and…
Serves businesses and organisations seeking an agency partner, primarily marketing leaders and internal teams needing strategic, creative, web and media support across varied industries.
Financial Health
StableStable · -5% CAGR over 4y
Location
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Computed from 5 filingsDevelops supply chain planning software that uses AI to support demand forecasting, inventory optimisation, replenishment, and sales and operations planning. The platform integrates data for…
Serves B2B supply chain, operations and planning teams at wholesalers, retailers and manufacturers, from privately owned firms to Fortune 500 organisations worldwide.
Financial Health
StableStable · Hiring · 14% CAGR over 4y
Location
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Computed from 3 filingsDevelops client lifecycle management and know‑your‑customer (KYC) compliance software for regulated organisations. Platform automates customer onboarding, identity and sanctions screening, risk…
Serves regulated and unregulated organisations worldwide, including financial services firms, trust and corporate services providers, insurers, law and accountancy practices, and regulators.
Financial Health
StableStable · Hiring · 5% CAGR over 2y
Location
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Computed from 5 filingsProvides cloud-based workforce management and scheduling software for businesses, including shift planning, demand forecasting, automated rota generation, employee clock-in/out, leave management,…
Serves businesses and healthcare organisations with shift-based workforces, including retailers, hospitality operators, entertainment and leisure venues, private healthcare providers, large trusts,…
Financial Health
WeakWeak · Hiring · 4% CAGR over 4y
Location
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Computed from 3 filingsProvides payment processing software and services for businesses, including online payment acceptance, global acquiring, mass payouts, card reader solutions, and a unified platform for transaction…
Serves B2B merchants and partners needing payment acceptance, payouts and checkout capabilities, including e-commerce, subscription and multi-location businesses expanding across Southeast Asia,…
Financial Health
DistressedDistressed · -88% CAGR over 2y
Location
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Computed from 4 filingsProvides online background screening and identity verification services for employers. Offers criminal record checks, right‑to‑work verification, employment and education verification, credit and…
Serves SMBs and enterprises hiring staff or contractors, plus staffing, property, healthcare, logistics, tech, retail, manufacturing, gig economy, financial services, construction, non-profit,…
Financial Health
StrongStrong · Hiring · 27% CAGR over 5y
Location
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Computed from 4 filingsProvides global employment and HR management services, including employer of record, international payroll, contractor management, and onboarding tools. Enables companies to hire, manage, and pay…
Serves HR teams, executives and operations leaders at companies hiring employees or contractors across multiple countries, especially growing businesses expanding into new markets without local…
Financial Health
StrongStrong · Hiring · 8% CAGR over 3y
Location
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Computed from 3 filingsDevelops data management software that unifies, cleans, and enriches enterprise data. Provides tools for entity resolution, master data management, knowledge graphs, and real-time data integration…
Sells to enterprise data, IT, analytics and operations teams at B2B and B2C companies, healthcare organisations and supply-chain-intensive businesses with complex customer, supplier, product or…
Financial Health
HealthyHealthy · -27% CAGR over 2y
Location
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Computed from 3 filingsProvides global financial market data including derivatives pricing, options analytics, short interest, corporate actions, economic indicators, and exchange filings. Supplies reference data,…
Serves global financial institutions, investment managers, traders, risk and compliance teams, and financial data/technology teams across capital markets.
Financial Health
StableStable · -90% CAGR over 2y
Location
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Computed from 3 filingsProvides customer experience management and performance measurement services, including mystery shopping, site and merchandising audits, customer and employee surveys, contact centre support, and…
Serves multi-location B2C brands and operators in automotive, banking, fashion, grocery, home improvement, cinemas, petro-convenience, restaurants, specialty retail and telecom, including CX,…
Financial Health
DistressedDistressed · -22% CAGR over 2y
Location
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Computed from 4 filingsProvides digital advertising and pay‑per‑click management services. Plans and manages campaigns across Google Ads, Microsoft Ads and social media platforms, and delivers programmatic advertising,…
Serves UK businesses with long-term growth goals, including marketing teams and commercial leaders seeking paid search, paid social, programmatic advertising, and analytics support.
Financial Health
StrongStrong · Growing, Hiring · 17% CAGR over 3y
Location
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Computed from 4 filingsProvides GPU-based cloud computing and hosting services for AI and high‑performance computing workloads. Sells and maintains GPU servers, and offers on‑demand access to NVIDIA GPU infrastructure,…
Serves enterprises, GenAI startups, AI practitioners and other businesses needing scalable AI/GPU cloud infrastructure, plus organisations seeking AI consulting or R&D partnerships.
Financial Health
StrongStrong
Location
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Computed from 2 filingsProvides marketing and communications services for healthcare and health technology brands, including brand strategy, advertising campaigns, creative production, and integrated channel marketing to…
Targets B2B health brands and healthcare organisations, including digital health, telehealth, veterinary, home health and healthcare service companies, from emerging disruptors to established brands.
Financial Health
HealthyHealthy · 0% CAGR over 1y
Location
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Computed from 3 filingsDevelops and supplies test, measurement, and monitoring equipment and software for telecommunications and network infrastructure. Products support wireless and fiber network testing, service…
Sells primarily to businesses in telecoms, network infrastructure, cloud and data centre markets, including lab, manufacturing, deployment and operations teams. Also serves transport, public sector…
Financial Health
StableStable · Hiring · 20% CAGR over 2y
Location
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Computed from 5 filingsDevelops and provides a real-time audience engagement platform offering live polling, moderated Q&A, quizzes, surveys and word clouds. Integrates with tools such as Microsoft Teams and PowerPoint for…
Serves universities and businesses worldwide, including lecturers, teachers, trainers, presenters and internal communications or meeting leaders running classes, training, town halls, webinars and…
Financial Health
StableStable · -67% CAGR over 4y
Location
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Computed from 3 filingsProvides outsourced customer contact and business process services including customer service support, debt collections, complaint handling and customer acquisition. Operates multichannel contact…
Serves businesses and public sector organisations in energy, water, financial services, telecoms, retail/ecommerce, travel, tourism, insurance and government, targeting teams responsible for customer…
Financial Health
WeakWeak · -9% CAGR over 2y
Location
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Computed from 3 filingsProvides managed virtual meeting and event services for businesses, including investor relations events, earnings calls, corporate town halls, product launches and conferences. Offers production,…
Serves B2B clients including investor relations and corporate communications teams, institutional banks, investment managers, and capital markets professionals.
Financial Health
WeakWeak · -19% CAGR over 2y
Location
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Computed from 5 filingsProvides software platforms and analytics for retailers to manage returns, detect fraud and abuse, reduce shrink, and track operational incidents. Offers licensed tools that analyse transaction and…
Sells B2B to large omnichannel retailers, especially U.S. retail chains, targeting loss prevention, finance, ecommerce, marketing and operations teams responsible for in-store and online transaction…
Financial Health
DistressedDistressed · -64% CAGR over 5y
Location
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Computed from 5 filingsProvides digital marketing and web development services including website design, ecommerce and WordPress development, search engine optimisation, pay‑per‑click advertising, social media management,…
Serves UK businesses, particularly SMEs, local businesses, restaurants, ecommerce retailers and B2B firms seeking website, PPC, SEO and lead generation support.
Financial Health
HealthyHealthy · Hiring · 19% CAGR over 4y
Location
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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
Location
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Computed from 5 filingsDevelops software for estate agents that supports property market appraisals, including interactive presentations, local market data integration, digital proposals and agreements, client follow‑up…
Sells to estate agency businesses, including agents and valuers managing market appraisals, client follow-ups and vendor nurturing.
Financial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
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Computed from 5 filingsProvides international freight forwarding and logistics services, including air and ocean cargo, less‑than‑container and full‑truckload transport, customs brokerage, warehousing, and shipment…
Serves B2B shippers, ecommerce merchants, agents, resellers and marketplaces moving domestic or international freight, including Shopify and Amazon FBA sellers and sectors such as hospitality, fine…
Financial Health
WeakWeak · -5% CAGR over 4y
Location
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Computed from 5 filingsProvides document automation and data processing services including multichannel customer and employee communications, hybrid mail printing and fulfilment, inbound mail digitisation and archiving,…
Serves B2B organisations, particularly finance, payroll, HR, operations, customer service and IT teams needing high-volume customer, employee and supplier communications across print and digital…
Financial Health
StrongStrong · Growing · 1% CAGR over 4y
Location
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Computed from 5 filingsProvides occupational health services to employers, including employee health assessments, sickness absence management, pre-employment screening, health surveillance, workplace medicals, counselling…
Serves UK employers, from SMEs to large single- and multi-site organisations, across private and public sectors, including schools, academies, colleges, care providers, manufacturing, processing,…
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
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Provides brokerage infrastructure and services for institutional investors, including securities clearing, trade execution, financing, and portfolio and risk management tools via a cloud‑based…
Serves sophisticated individual traders and institutional capital markets participants, including hedge funds, family offices, proprietary traders, broker-dealers, ETF issuers, asset managers,…
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Computed from 3 filingsProvides IT infrastructure design, installation and support services, including structured cabling, enterprise network infrastructure and data centre solutions. Delivers procurement, project…
Serves B2B customers including large enterprises, data centre operators, office-space occupiers and fulfilment centre operators with multi-site IT infrastructure needs.
Financial Health
StableStable
Location
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Computed from 3 filingsDevelops clinical information and surgery management software for hospitals, including perioperative, anesthesia, critical care and patient tracking systems. Integrates medical device data, manages…
Serves hospitals, ambulatory surgery centers, perioperative departments, and government healthcare facilities, including Veterans Affairs providers. Targets clinicians, surgical teams,…
Financial Health
WeakWeak · 0% CAGR over 2y
Location
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Computed from 5 filingsProvides sales and commercial support for a group offering a managed open‑source data platform. The platform delivers hosted services for databases, event streaming, search and analytics technologies…
Serves B2B developers, data engineering teams and technology leaders at startups and scaling enterprises, with emphasis on software, fintech and retail companies using cloud-based data infrastructure.
Financial Health
StrongStrong
Location
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Computed from 5 filingsOperates temperature-controlled warehousing and cold chain logistics facilities for food producers, retailers, and distributors, providing refrigerated storage, inventory handling, transportation…
Serves B2B customers across the food cold chain, including producers, agriculture, dairy, bakery and protein suppliers, consumer packaged goods brands, retailers, food service providers,…
Financial Health
HealthyHealthy · -72% CAGR over 4y
Location
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Computed from 3 filingsDevelops and supplies library, archive and museum management software, including library management systems, collections management, discovery and digital preservation tools. Also provides system…
Serves libraries, archives, museums and organisations with specialist information centres or knowledge bases, including corporate and cultural institutions worldwide that manage collections, records…
Financial Health
StableStable · 0% CAGR over 2y
Location
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Develops and supplies genomic analysis products including FISH probes, next‑generation sequencing panels and microarray systems for detecting genetic biomarkers in cancer, cytogenetics and rare…
Serves clinical and research laboratories, cytogenetics and molecular genetics teams, oncology and rare disease diagnostics departments, hospitals, academic medical centres, and precision medicine…
Financial Health
N/AN/A
Location
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Computed from 2 filingsDevelops and supplies genomic analysis products including FISH probes, next‑generation sequencing panels and aCGH arrays, with associated software and kits used by clinical and research laboratories…
Sells to clinical and research laboratories, including cytogenetics, haematology, oncology and rare disease testing teams. Also serves precision medicine and biopharma partners running clinical trial…
Financial Health
DistressedDistressed · -45% CAGR over 1y
Location
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Computed from 5 filingsDevelops medical imaging software for cardiovascular and neurovascular analysis, including tools for cardiac MR, cardiac CT and stroke assessment. Provides AI‑based platforms that process imaging…
Sells to hospitals, academic medical centres and cardiology, radiology, stroke and vascular imaging teams worldwide, with additional OEM/distributor partnerships for medical imaging vendors.
Financial Health
DistressedDistressed · -16% CAGR over 4y
Location
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Computed from 2 filingsSupplies aftermarket automotive air conditioning and engine cooling components and repair parts, including compressors, condensers, evaporators, blower motors, heater cores, hose assemblies,…
Serves B2B customers in the automotive aftermarket, including parts distributors, retailers, professional buyers, and repair technicians sourcing vehicle climate-control and cooling components.
Financial Health
HealthyHealthy · -8% CAGR over 1y
Location
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Computed from 5 filingsDesigns, develops and integrates renewable energy systems including solar PV, battery storage, EV charging and heat pumps. Provides EPC and project delivery services, energy efficiency upgrades, and…
Serves businesses and public-sector organisations across the UK, including airports, facilities management teams, offices, warehouses, schools and commercial property owners seeking renewable energy…
Financial Health
HealthyHealthy · -14% CAGR over 4y
Location
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Develops and manufactures veterinary pharmaceutical products for livestock and companion animals, including treatments for infections, parasites, pain and other conditions. Supplies generic animal…
Serves veterinary professionals, SQP/RAMA advisers and farmers involved in livestock, equine and companion animal care, including cattle, sheep, horses, dogs and cats.
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Manufactures veterinary pharmaceutical products for livestock and companion animals. Develops and supplies generic medicines including anti-infectives, antiparasitics and pain treatments for cattle,…
Sells to animal health professionals and livestock producers, including veterinarians, SQP/RAMA-qualified sellers and farmers. Serves both companion animal and farm sectors, with products for cattle,…
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Computed from 3 filingsDesigns and manufactures oil‑in‑water monitoring analysers, sensors and control systems used to measure and manage oil content in water discharges. Supplies equipment and technical support for…
Sells to marine, offshore and industrial operators needing oil-in-water monitoring and water discharge control for environmental compliance, including shipping companies, offshore facilities and…
Financial Health
HealthyHealthy · Hiring · 8% CAGR over 2y
Location
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How StackAdapt 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. B2B companies are identified using Firmbase's semantic classification of company activity, built from filings, websites and registered SIC codes rather than SIC codes alone. The detected counts and share figures on this page are computed within that sector cohort, so "share" always means share of B2B companies with a detectable system — not of all UK companies.
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.
StackAdapt is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
UK B2B by Advertising
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Frequently asked questions
How many UK B2B companies use StackAdapt?
What share of UK B2B companies run StackAdapt?
How is StackAdapt usage detected?
What size B2B companies use StackAdapt in the UK?
What do StackAdapt-running B2B companies also run?
Can I get contact details for these companies?
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