Startup Companies Using Site Kit in the UK: 75 Active Firms (2026)
Startups using web measurement tooling build early-stage products and services while tracking website performance for UK market development.
For startups, this measurement plug-in is usually a marketing-operations signal rather than a product-category signal. It links the website, search visibility and performance reporting, giving founder-led or small growth teams a low-friction way to see acquisition, content and conversion behaviour before they can justify a separate analytics stack. Adoption tends to point to a public-market posture: the company has a live site, some channel experimentation and enough internal ownership of growth to care about search, landing-page performance and campaign attribution. Buying centre is typically founder, marketing lead or operations, with implementation sitting close to website administration rather than engineering.
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The UK adoption picture is small and concentrated: 75 active trading startups run this measurement plug-in, and reported employment across those users totals 813 people. Within startup analytics adoption, the tool sits third in the category ranking, at 5.9% of 1,276 startup analytics users. The regional skew is towards London, at 36.0% of the cohort, followed by the South East and East of England at 16.0% each, Scotland at 9.3% and the South West at 6.7%. That distribution fits a channel-marketing tool used by early commercial teams rather than a back-office system bought only after scale.
Startup status does not create a separate regulatory perimeter in the UK; it is a lifecycle and size description layered on top of ordinary company administration. Companies House filing, including the confirmation statement, remains the common baseline, with identity verification through GOV.UK now part of the filing journey for many users. Sector permissions still matter where the same startup is carrying out regulated financial services, energy supply, aviation, healthcare or legal work. For companies running website measurement, procurement is usually lighter than for core systems, but privacy notices, cookie consent, access control and external script governance still sit on the checklist.
Use of this kind of measurement plug-in appears to follow a practical path: startups adopt it while their public website is still central to validation, search traffic and direct enquiries, then reassess as growth teams professionalise. Some will keep a bundled website-admin setup because it is cheap to maintain and familiar to non-specialists; others will move towards event-led analytics, warehouse-connected reporting or consent tooling as sales motions lengthen. The cohort therefore looks more like a feeder layer for wider marketing operations than a destination stack in its own right.
Adoption by company size
Adoption of Site Kit varies by company size across the trading UK startup companies in this cohort. 2.5% of the 1,979 companies with under 10 employees run Site Kit (50 detected). 3.6% of the 586 companies with 10–50 employees run Site Kit (21 detected). 0% of the 11 companies with over 50 employees run Site Kit (0 detected). That is a 2.5% gap between the over 50 employees and under 10 employees bands.
75
Active firms
2026
5.9%
Of detected Analytics share
UK startup
6
Median headcount
Filed accounts
221
Verified contacts
Across this cohort
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Key facts
24% of the cohort was incorporated since 2022 (18 firms), so a sizeable share is in its first few filing cycles.
Within startup-tagged companies with a detectable Analytics system, the page’s system ranks third at 5.9% (75 companies) out of a 1,276-company denominator, behind systems at 83.4% (1,064) and 7.9% (101).
Co-detected stack patterns point to measurement running alongside wider website tooling: 100.0% (75 companies) also run one co-detected web platform, 86.7% (65) another analytics system and 40.0% (30) tag-management tooling.
London accounts for 36.0% (27 companies) of registered addresses, with the South East and East of England each at 16.0% (12).
Tag overlap shows a technology-heavy startup mix: SaaS appears on 48.0% (36), AI & Machine Learning on 24.0% (18), Biotech on 20.0% (15) and Deep Tech on 13.3% (10).
Startup status does not create a separate UK regulatory category; Companies House filings still apply, and activities in financial services, energy supply, aviation or healthcare bring FCA, OFGEM, CAA or MHRA permissions.
WordPress plugins market share among UK Startup
Share of the 1,276 UK Startup with a detectable system. As of June 2026.
What else do Site Kit-running Startup run?
Share of the 75 Site Kit-running UK companies where each technology was also detected. As of June 2026.
Where Site Kit Startup 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
£400.9K
Median UK turnover
0%
Above £5M turnover
18
Incorporated since 2022
221 verified decision-maker contacts
across these 75 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK Startup using Site Kit
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 5 filingsProvides a software platform for e‑commerce and retail brands to run referral marketing programmes, enabling customers to share recommendations on social channels, track referrals, reward advocates,…
Serves eCommerce and retail brands, particularly marketing, affiliate and partnerships teams focused on customer acquisition, retention and brand advocacy across online shopping journeys.
Financial Health
WeakWeak · Hiring · 8% CAGR over 4y
Location
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Computed from 5 filingsProvides a data analytics platform for the media and advertising sector that aggregates viewing data from streaming and linear TV sources to measure audiences, deduplicate cross‑platform reach, and…
Serves broadcasters, OTT publishers and media companies, targeting ad sales, marketing and content teams, plus agencies involved in video audience and advertising measurement.
Financial Health
StrongStrong · Growing, Hiring · 8% CAGR over 5y
Location
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Computed from 3 filingsProvides cybersecurity software that uses deception techniques such as decoys and honeypots to detect attackers inside networks. Offers SaaS tools for threat intelligence, IP reputation monitoring,…
Serves B2B cybersecurity buyers, including security operations teams and IT leaders in finance, higher education and manufacturing, plus managed security providers and organisations with complex…
Financial Health
HealthyHealthy · Hiring · 12% CAGR over 2y
Location
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Computed from 4 filingsProvides AI-based data cleaning and standardisation software for insurance companies, processing schedules of values (SOVs) and bordereaux to validate, transform and prepare risk, premium and claims…
Serves B2B insurance organisations, particularly underwriting, delegated authority and catastrophe modelling teams handling risk, exposure, premium and claims data.
Financial Health
StrongStrong · Growing, Hiring · 71% CAGR over 3y
Location
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Develops artificial intelligence software for the healthcare and social care sector, including automated care plan auditing, clinical audit tools, and analytics that analyse care data to identify…
Serves B2B healthcare and social care providers, especially organisations managing complex care plans, clinical audits and care-team training.
Financial Health
N/AN/A
Location
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Computed from 5 filingsProvides cloud-based food traceability and safety management software for food businesses. The platform manages supplier records, ingredient batches, recipes, stock levels, HACCP controls, and…
Sells to small and medium-sized food businesses, especially producers, processors and distributors managing ingredients, suppliers, recipes, stock and deliveries.
Financial Health
DistressedDistressed · 0% CAGR over 4y
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Computed from 4 filingsDevelops software platforms to support residential energy retrofit projects, including online hubs for resident engagement, tools for managing grant-funded programmes, and property data analysis…
Serves UK housing associations, local authorities, tier-one contractors, retrofit businesses and one-stop shops, plus homeowners and residents involved in grant-funded or self-funded home retrofit…
Financial Health
StrongStrong · 18% CAGR over 2y
Location
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Computed from 3 filingsDevelops cloud‑based computational fluid dynamics (CFD) software for running aerodynamic and fluid flow simulations. The platform provides tools for simulation setup, analysis, and data management,…
Serves B2B engineering teams and companies using CFD, especially in motorsport, automotive, cycling, naval, buildings and HVAC sectors, including race engineers, design teams and smaller…
Financial Health
StrongStrong · Growing, Hiring · 17% CAGR over 2y
Location
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Computed from 3 filingsDevelops a generative AI agent orchestration platform and pre-built agents for enterprise use. Provides tools to build, deploy and manage AI agents for tasks such as bid writing, HR policy support,…
Serves B2B and public sector organisations deploying GenAI in high-trust, regulated environments, especially policing, defence, government and other regulated industries. Targets teams needing…
Financial Health
StrongStrong · Hiring · 123% CAGR over 2y
Location
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Computed from 5 filingsDevelops software for managing organisational job architecture, skills frameworks and job descriptions. Platform enables HR teams to structure job data, link roles to skills and pay, manage job…
Sells to HR, reward, compensation and talent leaders at large organisations, including global tech, media and agritech businesses and local authorities with complex workforce structures.
Financial Health
StableStable · Hiring · 36% CAGR over 4y
Location
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Computed from 5 filingsDevelops cloud‑based CRM, procurement and reporting software for energy brokers, aggregators and suppliers. Platform supports price generation for SME energy contracts, deal and customer management,…
Serves B2B energy market participants: energy brokers, aggregators and suppliers, including teams handling SME pricing, customer relationships, supplier engagement and deal flow across UK and US…
Financial Health
StableStable · Hiring · 22% CAGR over 4y
Location
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Computed from 5 filingsProvides a real-time enterprise risk intelligence platform that monitors and assesses third‑party partners, vendors and merchants. Offers due diligence screening, compliance monitoring, website…
Serves B2B risk, compliance and onboarding teams at payments, iGaming, crypto/VASP and other regulated businesses that manage merchants, suppliers, vendors and partners.
Financial Health
StableStable · Hiring · 63% CAGR over 4y
Location
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Computed from 5 filingsProvides cloud-based construction takeoff and estimating software for contractors and construction teams. The platform allows users to upload plans, measure quantities from drawings, automate…
Sells to B2B construction and building professionals, especially general contractors, specialty trades, estimators, architects, engineers, builders, manufacturers, suppliers and project owners…
Financial Health
StableStable · Hiring · 12% CAGR over 4y
Location
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Computed from 5 filingsDevelops a digital health app providing guidance and educational content on pregnancy, breastfeeding, infant feeding and early parenthood. Platform includes 3D coaching tools, articles, videos and…
Serves employers, healthcare providers, local authorities, Family Hubs and individual parents or families seeking support across fertility, pregnancy, infant feeding, parenthood, menstrual health and…
Financial Health
WeakWeak · Hiring · 73% CAGR over 4y
Location
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Computed from 3 filingsDevelops workplace ethics and compliance software that enables employees to report misconduct via mobile and web channels, including anonymous whistleblowing. Provides case management tools,…
Sells to mid-market and enterprise organizations, particularly ethics, compliance, legal and HR teams, that need employee misconduct reporting and whistleblowing processes across departments and…
Financial Health
WeakWeak · Hiring · 13% CAGR over 2y
Location
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Computed from 3 filingsDevelops AI-powered software that automates completion of RFPs, tenders, due diligence questionnaires and ESG disclosures. The platform generates responses from company documents, reuses prior…
Sells to SMEs and enterprises needing to complete RFPs, tenders, ESG disclosures, compliance forms and due diligence questionnaires, including teams in construction, EPC/EPCF, software, M&A, ISO…
Financial Health
DistressedDistressed · -13% CAGR over 2y
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Computed from 5 filingsDevelops embedded analytics and business intelligence software for SaaS applications, including dashboards, reporting, and predictive analytics tools. Platform integrates into products to provide…
Targets B2B SaaS vendors and software product teams, especially in healthtech, fintech, edtech and retailtech, with buyers in product, engineering and leadership roles.
Financial Health
DistressedDistressed · -1% CAGR over 5y
Location
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Computed from 2 filingsProvides cloud-based fleet management software that helps transport operators monitor vehicles, drivers and maintenance. Platform includes asset tracking, digital vehicle inspections, workshop and…
Sells to businesses operating vehicle fleets, especially fleet managers, transport operators and workshop teams responsible for drivers, assets, maintenance and compliance.
Financial Health
WeakWeak · 0% CAGR over 1y
Location
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Computed from 5 filingsDevelops digital mental health applications and training programmes, including the gamified eQuoo app, providing psychological skills education, resilience training and wellbeing tools for students,…
Serves educational institutions, students and learners, alongside employers and workplace teams focused on employee wellbeing. Also addresses parents/guardians and professionals seeking resilience…
Financial Health
StableStable · Hiring · 32% CAGR over 4y
Location
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Computed from 5 filingsProvides an enterprise platform for designing, deploying and managing Internet of Things (IoT) projects. Supports device connectivity, catalogue management, data normalisation, monitoring and APIs to…
Serves enterprises, systems integrators and IoT solution teams managing connected assets, including agriculture, cold chain, fire safety, commercial property, infrastructure, smart city and local…
Financial Health
WeakWeak · -10% CAGR over 4y
Location
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Computed from 4 filingsDevelops digital banking software for banks, electronic money institutions and payment providers, including platforms for omni‑channel banking, customer onboarding with KYC/KYB, core banking ledger…
Serves B2B financial institutions, including banks, electronic money institutions, digital banks, payment service providers, remittance companies, credit unions and cooperatives.
Financial Health
StrongStrong · 12% CAGR over 2y
Location
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Computed from 4 filingsProvides a retail analytics platform that tracks online pricing, promotions, search visibility, product content, and retail media across retailers. Supplies daily data and insights to support pricing…
Serves consumer goods brands, suppliers and retailers worldwide, targeting commercial, sales, revenue, category insight, eCommerce, marketing and quality teams involved in retail performance.
Financial Health
StrongStrong · Growing, Hiring · 98% CAGR over 3y
Location
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Computed from 5 filingsDevelops and provides cloud‑based care home management software. Platform supports electronic care planning, medication administration records (eMAR), staff rota and HR tools, billing, compliance…
Sells to UK adult social care providers, including residential and nursing care homes, care home groups, supported living, domiciliary care and live-in care operators, plus services for learning…
Financial Health
StrongStrong · Growing, Hiring · 41% CAGR over 4y
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Computed from 4 filingsProvides a carbon accounting software platform for food and hospitality businesses. Calculates company and product greenhouse gas emissions, including Scope 3 from procurement data, and generates…
Serves B2B food and drink organisations, including wholesalers, caterers, restaurants, pubs, hotels, manufacturers, brands, producers and event operators, particularly ESG and sustainability teams.
Financial Health
StrongStrong · Hiring · 11% CAGR over 3y
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Computed from 5 filingsDevelops web-based orthodontic treatment planning software that uses AI to generate clear aligner treatment plans from dental scans. The platform enables dentists to create chairside aligner cases…
Sells B2B to UK dentists and dental practices offering clear aligner treatment, particularly clinicians seeking chairside orthodontic planning, specialist case review and UK-delivered aligner kits.
Financial Health
StableStable · Hiring · 26% CAGR over 4y
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Computed from 3 filingsDevelops and operates a digital platform and mobile app for recording, preserving and sharing personal life stories. Uses AI chatbots to capture memories and conversations, including tools for care…
Serves care homes and their residents, as well as individuals and families who want to capture and share life stories with relatives, friends or wider communities.
Financial Health
StableStable · Hiring · 66% CAGR over 2y
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Computed from 3 filingsProvides a digital platform for managing exchange‑traded product (ETP) primary market transactions. Software connects authorised participants, issuers, custodians, exchanges and brokers to handle…
Serves B2B financial institutions involved in ETP primary markets, including authorised participants, market makers, issuers, custodians, transfer agents, exchanges, fund administrators and broker…
Financial Health
StableStable · Hiring · 22% CAGR over 2y
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Computed from 5 filingsProvides cloud-based software for company secretarial and entity management. Enables management of statutory registers, share issues and transfers, capital changes, board and shareholder resolutions,…
Serves companies managing their own corporate records and professional advisers managing client entities, including lawyers, accountants, property managers, fund administrators and corporate service…
Financial Health
DistressedDistressed · -19% CAGR over 4y
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Develops white‑label software for businesses selling photobooks and personalised print products. Platform provides online, desktop and mobile editors, image upload, product customisation, ordering…
Serves B2B photo printing, personalised gift, card and calendar retailers that sell under their own brand, from start-ups to established print businesses and multi-store operators.
Financial Health
N/AN/A
Location
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Computed from 4 filingsDevelops cloud-based software for managing diagnostic testing, sample collection and vaccination data in human and animal health. Provides data collection, storage and analysis tools for…
Serves B2B healthcare and veterinary organisations, including laboratories, pharmacies, private and travel clinics, point-of-care providers, vets, partner laboratories, private businesses and major…
Financial Health
DistressedDistressed · -4% CAGR over 3y
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Computed from 5 filingsDevelops cloud-based order management and ERP software for retail and wholesale businesses. The platform integrates inventory control, warehouse operations, purchasing, light manufacturing, POS, and…
Sells to B2B and B2C retail and wholesale businesses running multi-channel, multi-location operations, including ecommerce, marketplace, warehouse, trade sales and light manufacturing teams that have…
Financial Health
DistressedDistressed · -15% CAGR over 4y
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Computed from 4 filingsDevelops software for creating immersive virtual reality learning and training content. Provides a no‑code platform with multimedia editors, scenario builders, and analytics to design interactive…
Serves businesses, healthcare training teams and education providers that need immersive learning for employees, students and trainees, including organisations using learning management systems.
Financial Health
DistressedDistressed · -37% CAGR over 1y
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Computed from 3 filingsDevelops blockchain-based security software for managing digital assets and transactions, including cloud wallet and custody services, confidential computing, cryptographic key management, and…
Serves B2B organisations that handle critical transactions, sensitive information, digital assets, AI models, or regulatory compliance requirements, including teams needing high-assurance security…
Financial Health
StableStable
Location
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Computed from 5 filingsProvides personal assistant services for families through a mobile platform, matching users with dedicated assistants who organise household administration, bookings, childcare logistics, errands and…
Serves busy professionals and families needing help with home, childcare, elder care and personal admin, and sells to employers offering family-assistance benefits to staff.
Financial Health
WeakWeak
Location
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Computed from 5 filingsProvides business-to-business software for asset tokenization using blockchain and smart contracts. Offers platforms and tools for fund managers, wealth managers and financial infrastructure…
Sells B2B to investment industry organisations, including fund managers, wealth managers, token issuers and distributors, fund administrators, and market infrastructure providers involved in asset…
Financial Health
WeakWeak · Hiring · 26% CAGR over 4y
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Computed from 5 filingsProvides technology for senior care providers including in-room sensors, sleep and activity monitoring, fall detection, continence alerts, and medication management. Systems collect real-time data…
Sells to senior care providers, care home and assisted living operators, and their care teams, with older residents and families as key stakeholders.
Financial Health
HealthyHealthy · Hiring · 120% CAGR over 4y
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Computed from 5 filingsDevelops a blockchain-based network that connects equity crowdfunding platforms. Provides APIs and tokenisation tools enabling platforms to share deals, access international investors, raise capital…
Serves equity crowdfunding platforms seeking cross-border reach, plus entrepreneurs raising capital through partner platforms and everyday investors looking for private-company crowdfunding…
Financial Health
WeakWeak · Hiring · 32% CAGR over 4y
Location
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Computed from 2 filingsDevelops and publishes video games, including indie and virtual reality titles. Produces original games and collaborates with partner studios to release titles across PC, console, and VR platforms.
Targets video game consumers, particularly indie, action-adventure and VR players, and engages game industry partners or developers looking for publishing collaboration.
Financial Health
StrongStrong · Growing, Hiring · 32% CAGR over 1y
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Computed from 5 filingsDevelops and provides health and safety management software that enables organisations to record incidents, conduct audits and risk assessments, manage permits to work, track PPE and assets, deliver…
Serves businesses of all sizes that manage workplace health and safety, especially organisations with staff, visitors, contractors, lone workers, mobile teams, site operations or high-risk activities.
Financial Health
StrongStrong · Growing, Hiring · 16% CAGR over 4y
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Computed from 5 filingsOperates an online platform for booking chauffeur-driven car services and airport assistance worldwide. Provides transfers, hourly hire, and VIP meet-and-greet services, enabling travellers and…
Serves elite organisations, corporate travel teams, luxury travel providers and high-net-worth or VIP travellers arranging premium ground transport and airport assistance across international cities…
Financial Health
StrongStrong
Location
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Computed from 2 filingsDevelops decision‑intelligence software for real-assets investors and asset managers. Platform integrates data from internal systems and documents, analyses investment information, and provides…
Sells to B2B real-assets investors and managers, including asset managers and investment managers. Targets institutional firms that need decision support for deal evaluation, portfolio oversight, and…
Financial Health
StrongStrong · Growing, Hiring · 140% CAGR over 1y
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Computed from 2 filingsDevelops cloud-based billing software for private healthcare providers. The platform integrates with electronic health record (EHR) systems to automate invoicing, manage contract and patient billing…
Serves private healthcare providers in the UK, including hospitals, clinics and medical facilities, targeting finance and billing teams managing patient invoicing, contracts and payment recovery.
Financial Health
StrongStrong
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Computed from 3 filingsDevelops blockchain-based security software and infrastructure for managing digital assets and transactions. Provides cloud wallets, custody services, confidential computing, key management, and…
Serves businesses and organisations handling critical transactions, sensitive information and digital assets, particularly teams with security, regulatory compliance, blockchain, confidential…
Financial Health
StrongStrong · Hiring · 27% CAGR over 2y
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Computed from 2 filingsDevelops quantitative software systems for derivatives markets, providing technology to support trading, pricing and market infrastructure. Focuses on building scalable financial platforms and tools…
Serves financial institutions and market infrastructure participants in derivatives markets, including investment banks, asset managers, clearing houses and fintechs, particularly quant, trading,…
Financial Health
StableStable · 0% CAGR over 1y
Location
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Computed from 2 filingsDevelops indoor navigation and wayfinding software that maps buildings using LiDAR scanning and 3D point‑cloud data, providing mobile apps and web maps that guide users through complex venues such as…
Serves venue operators and public institutions, including airports, rail stations, retailers, corporate facilities, stadiums, hospitals, universities, museums, libraries and government buildings.
Financial Health
StableStable · 0% CAGR over 1y
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Computed from 5 filingsProvides smart food waste management systems including IoT-enabled bins, weighing and RFID access controls, collection coordination, and data analytics. Tracks and reports separated food waste to…
Serves food businesses that generate food waste, such as hospitality and catering operators, and waste management companies needing customer-level waste data, compliance support and collection…
Financial Health
WeakWeak · Hiring · 26% CAGR over 3y
Location
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Computed from 3 filingsDevelops AI software for analysing lumbar spine MRI scans. Provides automated image segmentation, measurements, 3D reconstruction and pre‑populated reports to assist radiologists with diagnosis and…
Serves radiologists, hospital chains and diagnostic imaging centres using lumbar spine MRI, plus personal injury attorneys needing MRI analysis support.
Financial Health
WeakWeak · -86% CAGR over 2y
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Computed from 5 filingsProvides air and noise pollution monitoring systems using sensor networks and integrated cameras to measure particulates and gases, identify pollution sources, and generate compliance reports,…
Serves B2B and public sector organisations managing urban pollution risks, including construction firms, NHS trusts, local authorities, industrial waste operators and transport infrastructure owners.
Financial Health
DistressedDistressed · -72% CAGR over 4y
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Computed from 3 filingsProvides an on‑demand mental health platform offering coaching and therapy sessions, self‑help tools, and wellbeing content. Also delivers webinars, community events, and workplace training tools…
Sells to employers and HR/people teams that want mental wellbeing support for employees, alongside mental health practitioners engaged through the platform, with a stated global employee audience.
Financial Health
DistressedDistressed · -7% CAGR over 2y
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Computed from 4 filingsDevelops desktop virtualization software that delivers Windows and Linux virtual desktops and applications through its OVD Enterprise platform. Provides tools for secure remote access, centralized…
Sells to enterprises, IT departments, MSPs and CSPs that need secure virtual desktop and application access for workforces, especially organisations evaluating Citrix or VMware Horizon alternatives.
Financial Health
StableStable · 0% CAGR over 3y
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How Site Kit 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. startup 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 startup 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.
Site Kit is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
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Frequently asked questions
How many UK startup companies use Site Kit?
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