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Companies Using Firebase in the UK: 488 Active Firms (2026)
Companies using app tech in the UK run cloud-backed web or mobile experiences with analytics, deep linking and device storage.
Adoption usually sits with product-engineering, mobile, growth-analytics and security teams rather than a single IT buyer. Companies running this app stack tend to own customer-facing web or mobile products, with enough budget for managed cloud services, event measurement, authentication, routing and device-storage work. The buyer profile is mostly B2B software, digital services, ecommerce and app-led consumer operations, where implementation is tied to release cadence and conversion measurement. Typical engagements range from discrete SDK and analytics projects to ongoing platform maintenance where privacy, performance and mobile-product ownership sit inside the same engineering function.
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UK adoption is a narrow but visible slice of the app-technology market, with 488 actively trading companies running this app stack. Reported employment across those filing headcount totals 2,235 people, pointing to a cohort where specialist product teams matter more than large internal platforms in many cases. The tagged sector mix leans towards SaaS and other start-up software, with media and publishing, travel and hospitality, and healthcare-provider operators also present. That spread fits a toolset used where customer-facing apps need event measurement, authentication, deep-link routing or local device storage rather than a heavier enterprise application programme.
Use of app SDKs, analytics, deep links and device storage generally falls under UK privacy and security obligations rather than a sector licence. The ICO treats PECR regulation 6 as relevant when an organisation stores information on, or accesses information from, a user’s device, including smartphones, tablets and other devices. Organisations must explain what cookies or similar technologies do and why, and obtain consent unless an exemption applies. Where personal data is processed, the Data Protection Act and UK GDPR also apply. GOV.UK’s voluntary app code adds baseline expectations around app-store requirements, legal compliance, encryption and avoiding permissions that are not functionally required.
Adoption appears likely to stay tied to customer-facing product work rather than back-office software estates. Teams using managed app services tend to keep them while analytics, consent and authentication remain intertwined in mobile release cycles, but switching pressure can build where privacy controls, deep-link reliability or security review requirements become awkward to manage. The cohort still looks weighted towards specialist-team scale, with fewer firms showing the organisational shape of large platform operators. That points to gradual estate rationalisation, more scrutiny from privacy and security teams, and continued bundling of app infrastructure into broader cloud and marketing-technology buying decisions.
488
Active firms
2026
26
Above £5M turnover
Trading firms
7
Median headcount
Filed accounts
1,070
Verified contacts
Across this cohort
Key facts
About 5% of the trading cohort reports turnover above £5M (26 of 488 firms) — the rest sits below that revenue band.
11% of the cohort was incorporated since 2022 (57 firms), so a sizeable share is in its first few filing cycles.
48.4% of companies running this technology also use a CDN and web-security layer, and 42.0% also use a web-analytics layer.
35.2% also run tag management, pointing to stacks built for campaign attribution, consent handling and product measurement.
SaaS is the largest sector tag at 15.0%, followed by Startup at 9.0%; sector tags overlap, so the mix reflects product model as much as SIC-style activity.
The ICO says PECR regulation 6 applies where an organisation stores information on, or gains access to information on, a user's device, including apps on smartphones, tablets and other devices.
Where personal data is processed, the Data Protection Act and UK GDPR also apply; GOV.UK's voluntary app code says developers should use industry-standard encryption for data in transit and avoid permissions that are not functionally required.
What else do Firebase users run?
Share of the 488 Firebase-running UK companies where each technology was also detected. As of June 2026.
Who runs Firebase 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.
7
Median headcount
£515.5k
Median UK turnover
5.3%
Above £5M turnover
57
Incorporated since 2022
1,070 verified decision-maker contacts
across these 488 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK companies using Firebase
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 financial app offering multi‑currency accounts, virtual and physical payment cards, currency exchange, and international money transfers. Also supplies business accounts, payment gateway…
Serves consumers using app-based multi-currency finance, plus businesses, developers and partners in eCommerce, crowdfunding, gaming, fintech and crypto with cross-border payment needs.
Financial Health
StableStable · 1% CAGR over 4y
Location
AVANTI WEST MIDLANDS LIMITED
Financial sub-scores
Computed from 3 filingsOperates intercity passenger rail services on the West Coast Main Line and sells train tickets through its website and app. Provides timetable information, seat reservations, ticket types, railcard…
Serves UK rail passengers, including leisure travellers, commuters, families, students, groups, schools, event organisers, film crews and business travellers using West Coast Main Line routes.
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
Financial sub-scores
Computed from 3 filingsOperates an online cryptocurrency exchange and financial platform enabling users to buy, sell, trade, and store digital assets. Provides spot trading, instant purchase, wallet services, and staking…
Sells to retail cryptocurrency users and active traders, plus business customers seeking crypto services and partnerships. Targets global users, with some products and offers tailored by country or…
Financial Health
StableStable · -34% CAGR over 2y
Location
Financial sub-scores
Computed from 2 filingsProvides a web platform offering audience engagement tools for publishers and websites, including comment systems, interactive widgets, quizzes, social sharing features, and analytics tools for…
Sells to B2B customers operating websites, especially digital publishers, media brands and content teams with audience communities and first-party data needs.
Financial Health
StableStable · 0% CAGR over 1y
Location
NOTION LIMITED
Financial sub-scores
Computed from 4 filingsDevelops a cloud-based workspace application for creating documents, wikis, databases, and project boards. Provides collaboration tools, task and project management, knowledge bases, integrations…
Serves individuals, professionals, small teams, startups, growing businesses and enterprises, including engineering, product, design, marketing and IT teams, as well as education users.
Financial Health
StableStable · Hiring · 8% CAGR over 3y
Location
Eat24 Limited
Financial sub-scores
Computed from 4 filingsOperates an online food ordering and delivery platform connecting customers with restaurants. Provides mobile and web ordering, order tracking, and a network of delivery partners that collect and…
Serves consumers ordering restaurant meals, restaurant owners seeking online ordering and delivery, and independent couriers looking for flexible delivery work.
Financial Health
HealthyHealthy · Hiring · 9% CAGR over 3y
Location
Operates intercity passenger rail services and sells train tickets across Britain, offering online and app-based booking, seat reservations, journey updates, and onboard services including first…
Serves leisure and business rail passengers travelling across England, Scotland and Wales, including commuters, families, students, seniors, disabled travellers and customers booking intercity trips…
Location
Reviva Softworks Ltd
Financial sub-scores
Computed from 5 filingsDevelops mobile health and wellbeing applications and motion‑sensing technology. Products include apps for recording and tracking snoring, sleep monitoring and smart alarms, exercises for snorers,…
Serves B2C mobile app users, particularly people who snore, want to track sleep or improve waking routines, and consumers interested in relaxation, breathing exercises and ASMR experiences.
Financial Health
StrongStrong · Growing, Hiring · 26% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsOperates an online platform for residential property transactions, enabling users to search for homes for sale or rent and access related services including estate agent listings, mortgage brokerage,…
Serves UK residential property buyers, sellers, renters and homeowners, including people needing mortgages, conveyancing and estate-agent support during a home move.
Financial Health
HealthyHealthy · Hiring · 42% CAGR over 4y
Location
Operates an online shopping platform and mobile app that aggregates products from multiple retailers, allowing users to browse and purchase items while earning share-based rewards (“Shareback”) for…
Targets consumers in the UK and US who shop online across fashion, beauty, home, groceries, travel and electronics, alongside retail and advertising partners seeking access to a social shopping…
Financial Health
Insufficient historyInsufficient history
Location
Financial sub-scores
Computed from 5 filingsProvides a mobile app offering short‑term cash advances and income top‑ups, typically up to £500, repaid in instalments through a subscription model. Also offers features intended to help users build…
Serves UK consumers with low credit scores, bad credit histories or fluctuating pay who need short-term cash access, income top-ups and credit-building support via a mobile app.
Financial Health
StableStable · 0% CAGR over 4y
Location
Financial sub-scores
Computed from 2 filingsDevelops workplace experience software that enables organisations to manage employee communications, intranet content, digital signage, room and desk reservations, visitor management, and workplace…
Sells to organisations managing employee communications and workplaces, including communications, workplace, facilities and IT teams. Targets businesses in financial services, healthcare, industrial…
Financial Health
StableStable · Hiring · 13% CAGR over 1y
Location
Financial sub-scores
Computed from 3 filingsOperates an online peer‑to‑peer support platform where users share and discuss mental health and wellbeing experiences. Provides moderated community features, AI risk detection, and escalation to…
Serves a mix of individual consumers, universities and employers: people seeking wellbeing peer support, higher education institutions with student wellbeing needs, and companies supporting employee…
Financial Health
HealthyHealthy · Hiring · 24% CAGR over 2y
Location
BROMCOM COMPUTERS PLC
Financial sub-scores
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…
Financial Health
StrongStrong · Profitable
Location
Lightning Social Ventures Ltd
Financial sub-scores
Computed from 5 filingsOperates an online platform that helps individuals find and apply for financial support such as charitable grants, council schemes and benefits. Provides tools for charities, councils and housing…
Serves individuals seeking financial support, plus UK charities, councils, housing associations, utilities, banks and support workers managing schemes or referring clients and residents for…
Financial Health
StrongStrong · Growing, Hiring · 22% CAGR over 4y
Location
EMPLOYMENT HERO (UK) LIMITED
Financial sub-scores
Computed from 4 filingsProvides cloud-based HR, payroll and recruitment software for businesses. Platform includes tools for payroll processing, pension submissions, employee onboarding, time and attendance tracking,…
Serves UK SMEs and SMB employers, especially HR, payroll and hiring teams. Also targets accounting firms, payroll bureaus and referral partners serving small-business clients.
Financial Health
StrongStrong · Hiring · 100% CAGR over 3y
Location
MATCH ME CAR FINANCE LTD
Financial sub-scores
Computed from 5 filingsProvides car finance brokerage services through an online platform. Compares loan offers from a panel of lenders, provides quotes and eligibility checks, and enables customers to browse dealer…
Serves UK consumers seeking finance to buy cars, including applicants comparing lender options and browsing vehicles from dealers nationwide.
Financial Health
StrongStrong · Growing, Hiring · 37% CAGR over 4y
Location
Financial sub-scores
Computed from 4 filingsDevelops software that provides digital receipt and post‑purchase engagement tools for retailers. Platform links in‑store transactions to customer profiles, delivers receipts via digital channels,…
Serves independent, mid-sized and enterprise retailers and growing consumer brands, with their shoppers as end users.
Financial Health
StrongStrong · Hiring · 63% CAGR over 3y
Location
Financial sub-scores
Computed from 2 filingsDevelops and operates a digital platform offering video conferencing, online document signing, artificial intelligence tools and collaboration apps. Also provides online marketplaces and listings for…
Serves a mixed B2C and B2B audience worldwide, including consumers, property buyers, real estate agents, advertisers, sponsors, partners and corporate users across property, travel, luxury assets and…
Financial Health
HealthyHealthy · 0% CAGR over 1y
Location
MORTGAGE MAGICK LTD
Financial sub-scores
Computed from 5 filingsDevelops an online software platform for mortgage intermediaries and advisers that supports managing client cases, processing mortgage applications, and administering related documentation and…
Serves UK mortgage intermediaries and advisers, including broker firms and advisory teams operating in the mortgage advice market.
Financial Health
HealthyHealthy · Hiring · 19% CAGR over 4y
Location
Sprout Care Limited
Financial sub-scores
Computed from 3 filingsProvides a messaging and communication app for home-based daycare providers. The platform enables daily logs, photo sharing, parent messaging, calendars, and supply lists to keep guardians informed…
Sells to licensed home-based daycare providers, with parents and guardians of enrolled children as secondary users; targets small childcare operators managing day-to-day family communications.
Financial Health
StrongStrong · Growing, Hiring · 12% CAGR over 2y
Location
Qargo Tech Ltd
Financial sub-scores
Computed from 5 filingsDevelops cloud-based transport management software for logistics companies, providing tools for order entry, route planning, documentation, invoicing, integrations, and CO2 tracking, with AI features…
Sells to transport and logistics businesses, especially carriers, freight forwarders and 3PLs. Targets operational, planning, finance and leadership teams managing haulage, distribution, intermodal,…
Financial Health
StrongStrong · Growing, Hiring · 47% CAGR over 4y
Location
AVC WISE LIMITED
Financial sub-scores
Computed from 5 filingsProvides an online financial wellbeing platform offering educational content, tools and guidance on pensions, additional voluntary contributions (AVCs), budgeting, insurance and savings. The platform…
Sells to employers seeking financial wellbeing support for their workforce, and to employees using workplace-provided financial education and guidance. Targets organisations offering pension, AVC and…
Financial Health
HealthyHealthy · Hiring · 32% CAGR over 4y
Location
Financial sub-scores
Computed from 4 filingsProvides treasury advisory and software for businesses trading internationally, including FX risk analysis and hedging, cash management, bank relationship management, and working capital advice,…
Serves B2B finance teams and CFOs at internationally trading startups, scaleups and mid-market firms, especially e-commerce, travel, logistics, wholesale, staffing and professional services, plus…
Financial Health
StrongStrong · Hiring · 14% CAGR over 3y
Location
Financial sub-scores
Computed from 5 filingsDevelops a mobile app that provides digital relationship and sex therapy programmes for couples. The platform offers assessments, guided courses, journaling tools, educational articles and exercises…
Serves consumers, particularly couples and individuals seeking app-based support for libido challenges, desire differences, sex therapy topics, relationship stress and intimacy.
Financial Health
HealthyHealthy · -11% CAGR over 4y
Location
Financial sub-scores
Computed from 4 filingsProvides an online ordering and payment platform for restaurants and takeaways, enabling customers to place orders for collection, delivery, or dine‑in. Also supplies point‑of‑sale hardware and…
Serves restaurants and takeaway businesses, alongside consumers ordering collection, delivery or dine-in meals through participating food venues.
Financial Health
StrongStrong · Growing · 0% CAGR over 3y
Location
E AND M DIGITAL LIMITED
Financial sub-scores
Computed from 5 filingsOperates an online marketplace for holiday apartments and homes, allowing travellers to search and book short‑term accommodation directly from private owners. Provides property listings, booking…
Serves holidaymakers seeking privately owned vacation rentals worldwide, alongside private hosts, professional landlords and property managers looking to list accommodations.
Financial Health
StrongStrong
Location
SOCIAL TIP LTD
Financial sub-scores
Computed from 2 filingsOperates an online platform and mobile app that connects consumer brands with social media users, rewarding individuals with cash payments for posting about purchased products or experiences on…
Serves consumer brands in sectors such as fashion, beauty, health and fitness, travel, dining and pet products, alongside everyday Instagram and TikTok users who buy from brands and want posting…
Financial Health
StrongStrong · Hiring · 50% CAGR over 1y
Location
VOXPOPME LIMITED
Financial sub-scores
Computed from 4 filingsProvides a qualitative research platform that collects and analyses customer insights through video surveys, live interviews and focus groups. Includes AI tools for transcription, sentiment analysis,…
Serves B2B customer insights, market research, and product/user research teams at organisations running qualitative studies, including video surveys, interviews, focus groups, and research…
Financial Health
HealthyHealthy · -81% CAGR over 3y
Location
SUBTVU LIMITED
Financial sub-scores
Computed from 5 filingsOperates an interactive campus TV network in university venues, streaming music videos on connected screens and through a mobile app that lets students request tracks and access offers. Provides…
Serves UK universities and student unions, national advertisers and music labels seeking to reach 18-24-year-old university students, with students as app users and offer recipients.
Financial Health
StableStable · Hiring · 9% CAGR over 4y
Location
Financial sub-scores
Computed from 3 filingsProvides a cloud platform for selling and managing subscription-based digital services. Offers tools for B2B marketplaces, subscription billing, partner and reseller management, cloud distribution,…
Serves B2B organizations in the subscription economy, including communications service providers, software companies, manufacturers, IT and managed service providers, financial services firms,…
Financial Health
HealthyHealthy · -6% CAGR over 2y
Location
FIELD MARGIN LIMITED
Financial sub-scores
Computed from 4 filingsDevelops farm management software that provides mapping, field planning, work tracking, livestock management, input recording, pesticide checking, and reporting tools. The platform allows farmers and…
Serves farmers, farm managers and agricultural teams worldwide, including crop, livestock, horticulture, mixed and multi-farm operations, plus contractors, agronomists and research plot managers…
Financial Health
WeakWeak · -4% CAGR over 3y
Location
Tanooki Technologies Ltd
Financial sub-scores
Computed from 3 filingsDevelops a cloud-based content collaboration platform for video production teams. Provides HD video conferencing, live streaming from editing software, media review and approval tools, dailies…
Serves solo content creators, production and post-production teams, media companies managing multiple projects, and education institutions including schools, colleges and universities. Also targets…
Financial Health
HealthyHealthy · Hiring · 32% CAGR over 2y
Location
Financial sub-scores
Computed from 5 filingsProvides digital HR software and people experience platforms that support employee onboarding, performance management, learning programmes, reward and benefits administration, and compliance…
Targets HR teams and business leaders in SMEs outgrowing basic HRIS and larger organisations looking to improve digital interaction with employees across onboarding, performance, learning, reward and…
Financial Health
WeakWeak · 0% CAGR over 4y
Location
Habitual Healthcare Ltd
Provides personalised weight‑loss programmes combining prescription GLP‑1 medication or meal‑replacement products with behavioural support delivered through a mobile app. Also sells nutrition…
Serves adults seeking weight management support, including self-paying consumers and NHS patients referred through partner programmes such as Momenta, Oviva and Xyla.
Financial Health
Insufficient historyInsufficient history
Location
Financial sub-scores
Computed from 5 filingsProvides a no-code data capture platform that converts paper forms into digital workflows. Offers tools to build forms, collect data via mobile and web apps, manage submissions, generate reports, and…
Serves businesses of all sizes, including small firms and teams in agriculture, arboriculture, electrical engineering, facilities management, fire safety, production, water compliance and business…
Financial Health
StrongStrong · Growing, Hiring · 50% CAGR over 4y
Location
INNERSIGHTLABS LTD
Financial sub-scores
Computed from 5 filingsDevelops medical device software that converts CT and MRI scans into patient‑specific interactive 3D anatomical models. The platform allows clinicians to upload imaging data and view models via web…
Serves hospitals, NHS and private healthcare providers, and surgeons/clinicians involved in pre-operative planning, especially urology, thoracic, liver, colorectal and prostate cases, with UK and…
Financial Health
HealthyHealthy · Hiring · 21% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsProvides cloud-based invoicing and business management software for small businesses and freelancers. The platform enables creation of invoices, quotes, estimates and purchase orders, tracks expenses…
Serves freelancers, contractors, entrepreneurs and small business owners, especially trades and local service businesses such as construction, HVAC, electrical, plumbing, landscaping, cleaning, auto…
Financial Health
StrongStrong
Location
ADDEPAR UK LTD.
Financial sub-scores
Computed from 3 filingsDevelops portfolio management and data aggregation software for investment professionals. The platform consolidates data from multiple financial accounts and assets, providing analytics, reporting…
Sells to investment professionals at wealth managers, family offices, private banks and institutional investors, including teams managing complex portfolios. Targets financial services organisations…
Financial Health
StrongStrong · Profitable, Growing, Hiring · 86% CAGR over 2y
Location
Asseticom Ltd
Financial sub-scores
Computed from 5 filingsDevelops mobile software for asset data collection and condition surveying used in facilities and property management. The platform enables custom surveys, asset registers, lifecycle planning, data…
Serves B2B customers in the facilities management and property sectors, including facility managers, consultants, and building owner-occupiers in organisations of all sizes.
Financial Health
StrongStrong · Hiring · 20% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsDevelops and provides point‑of‑sale (POS) hardware and software for restaurants and takeaways, including an online platform that enables customers to order and pay for food for collection, delivery,…
Serves restaurants and takeaways needing POS hardware/software and online ordering/payment tools, alongside consumers ordering collection, delivery or dine-in meals from participating venues.
Financial Health
StrongStrong · Growing, Hiring · 16% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsDevelops and operates a mobile multiplayer treasure‑hunt shooter game for iOS and Android where players join timed hunts, locate virtual chests, earn in‑game tokens, and win physical prizes after…
Targets mobile gamers on iOS and Android who play free-to-play shooter and treasure-hunt games; also serves consumer brands seeking creator-hosted in-game hunts to reach gaming audiences.
Financial Health
StrongStrong
Location
Cord Technologies Limited
Financial sub-scores
Computed from 5 filingsDevelops software for managing, annotating and curating multimodal datasets used to train and evaluate AI models. Platform supports video, images, text, LiDAR and sensor data, with tools for data…
Serves B2B AI and machine learning teams at enterprises building physical, frontier and applied AI systems, including robotics, autonomous vehicles, drones, smart spaces and generative AI.
Financial Health
StrongStrong · Growing, Hiring · 100% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsDevelops a corporate social responsibility platform that connects employees with volunteering, donation and sustainability activities. Provides tools for organising group volunteering, running social…
Serves businesses and their CSR, HR and employee engagement teams seeking to involve staff in volunteering, sustainability, wellbeing and corporate giving programmes, including organisations…
Financial Health
StrongStrong · Hiring · 22% CAGR over 4y
Location
Cherrypop Games Limited
Financial sub-scores
Computed from 5 filingsDevelops and publishes sports video games for PC, consoles and mobile platforms, including pool, snooker, football and golf titles. Produces cross‑platform multiplayer games such as Pool Nation and…
Sells to consumers who play sports video games, especially casual and competitive pool, snooker, golf and football players across mobile, PC, console and VR platforms.
Financial Health
HealthyHealthy · Growing · 2% CAGR over 4y
Location
Financial sub-scores
Computed from 4 filingsDevelops AI software that enriches product data and generates structured product‑page copy for ecommerce retailers. The platform analyses product information, fills data gaps, produces SEO‑optimised…
Serves ecommerce brands and retailers with large SKU catalogues, especially teams responsible for product content, merchandising, SEO, marketplace feeds and digital commerce operations.
Financial Health
StrongStrong · Hiring · 47% CAGR over 3y
Location
CARE FRIENDS LIMITED
Financial sub-scores
Computed from 5 filingsDevelops and operates a mobile app that enables care providers and fostering organisations to recruit staff through employee and community referrals, allowing users to recommend candidates, track…
Serves social care providers, home care agencies, care home operators, fostering organisations and local authorities seeking to recruit care workers and foster carers through employee referrals.
Financial Health
WeakWeak · Hiring · 27% CAGR over 4y
Location
Financial sub-scores
Computed from 5 filingsDevelops legal technology platforms that connect entrepreneurs and high‑net‑worth individuals with law firms. Provides tools for managing legal transactions, client relationships, compliance, and…
Serves both B2B and end clients in legal services: law firms seeking client management and lead generation, plus entrepreneurs and high-net-worth individuals needing legal support across business…
Financial Health
WeakWeak · Hiring · 19% CAGR over 4y
Location
Well Able Limited
Financial sub-scores
Computed from 3 filingsProvides a digital platform for employers to run employee wellness, rewards, and recognition programmes. Offers wellness content, health challenges, gift card and custom incentives, peer recognition…
Serves employers, HR teams, benefits specialists, and people leaders seeking employee wellness, rewards, recognition, and engagement programmes for their workforce.
Financial Health
StableStable · 0% CAGR over 2y
Location
Financial sub-scores
Computed from 5 filingsProvides cloud software for renewable energy installers, including solar, heat pump, battery and EV charger companies. Platform offers CRM, quoting, job management, compliance documentation,…
Sells to UK B2B clean-tech installers, particularly solar, heat pump, battery storage and EV charger installation firms looking to manage growing project volumes, field teams and compliance…
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 4y
Location
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How Firebase 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.
Firebase is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
Firebase users by sector
Frequently asked questions
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