Companies Using reCAPTCHA in London: 8,617 Active Firms (2026)
Companies using bot checks add automated abuse screening to web forms and customer journeys across London.
Adoption sits around ordinary web conversion points: contact forms, account creation, quote requests, booking flows and payments. These bot-check users tend to have enough inbound volume for spam, credential stuffing or automated submissions to become operationally irritating, but not always enough for a dedicated security engineering function. Ownership often sits between marketing operations, web development and IT. Where engagement is small, bot checks are usually configured by agencies or site administrators; at larger accounts, security, compliance and customer-experience teams tend to share the decision.
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London has 8,617 actively trading companies running this bot-check stack, making adoption visible across ordinary trading businesses rather than only security-led internet platforms. The footprint is concentrated in companies where a public website is part of sales intake: trades, construction, property, wholesale and healthcare providers all appear as recurring user types. Reported employment totals 10,281 people, so the adoption base includes more than owner-managed websites even though many users remain small. The pattern fits a capital-city mix of local-service firms, professional operators and web-led customer acquisition rather than a single software vertical.
Procurement for bot checks tends to be low-friction, but the privacy work is less trivial. Screening tools can set cookies, inspect browser behaviour and pass technical signals to third parties, so London users usually need clear notices, supplier terms and GDPR accountability around lawful basis, retention and international transfers. The ICO lens is most relevant where bot checks sit on application forms, patient enquiries, financial quotes or other journeys that collect personal data. Marketing teams may own the form, yet web agencies, security staff and compliance teams often control the configuration.
Adoption appears likely to remain tied to website rebuilds, form spam problems and customer-account abuse, rather than being bought as a standalone security programme. Smaller users may stay with default plug-ins and agency-managed settings, while larger organisations tend to fold bot checks into identity, fraud and consent governance. Vendor bundling could reduce visible choice over time, particularly where hosting, analytics and form tools package basic abuse screening together. The main constraint is user experience: firms want fewer false challenges without reopening enquiry forms to automated traffic.
What’s in the file
One row per company, 50+ columns — everything below plus each company’s verified directors, from Companies House filings.
Company data
Verified directors — included
Adoption by company size
Adoption of reCAPTCHA rises with company size across the trading companies in this cohort. 1.1% of the 532,485 companies with under 10 employees run reCAPTCHA (6,002 detected). 14.8% of the 15,364 companies with 10–50 employees run reCAPTCHA (2,281 detected). 19.6% of the 1,763 companies with over 50 employees run reCAPTCHA (345 detected). That is a 18.5% gap between the over 50 employees and under 10 employees bands.
8,617
Active firms
2026
511
Above £5M turnover
Trading firms
6
Median headcount
Filed accounts
17,859
Verified directors
Across this cohort
Top companies using reCAPTCHA in London
Ranked by sales-readiness score: an AI model assesses what each company does, its sector and size, and scores its overall fit. Best-fit prospects appear first.
Financial sub-scores
Computed from 4 filingsOperates online sports betting and iGaming businesses through brands such as Betway, providing sportsbook and casino platforms. Manages brand development, partnerships with sports teams and leagues,…
Serves adult consumers in regulated online sports betting and iGaming markets, plus commercial partners such as sports teams, leagues and entertainment brands.
Financial Health
HealthyHealthy · Hiring · 39% CAGR over 3y
Location
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Financial sub-scores
Computed from 5 filingsOperates an online wholesale marketplace connecting independent retailers with brands and suppliers. The platform enables businesses to browse and order wholesale products including homeware, beauty…
Serves independent retailers buying wholesale stock for resale, and independent consumer goods brands seeking retailer customers, across homeware, gifts, fashion, beauty, food, pets and kids in the…
Financial Health
StrongStrong · Growing, Hiring · 92% CAGR over 4y
Location
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Computed from 5 filingsProvides online healthcare services including remote medical consultations, prescription issuance, and home delivery of medications. Operates digital clinic platforms such as HealthExpress,…
Serves individual patients seeking remote healthcare, medical advice and prescription medication via online consultations, primarily in the UK and other international markets through consumer health…
Financial Health
StrongStrong · Hiring · 34% CAGR over 4y
Location
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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
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Computed from 4 filingsProvides foreign exchange and international payment services for businesses, including spot FX transactions, hedging strategies, mass payments, and local collection accounts. Also offers business…
Serves businesses worldwide with international currency, payments and finance needs, including firms managing cross-border transactions, mass payments, local collections, trade finance, asset finance…
Financial Health
StrongStrong · Hiring · 37% CAGR over 4y
Location
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Computed from 3 filingsProvides sales support, marketing, and research and development services to affiliated companies developing enterprise automation software. Supports promotion and adoption of a platform for robotic…
Serves enterprises and public sector organisations, targeting business and IT teams in banking, financial services, healthcare, insurance, manufacturing, supply chain, finance, HR, QA/testing and…
Financial Health
StableStable · Hiring · 10% CAGR over 2y
Location
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Computed from 5 filingsProvides electronic money and payment processing services for businesses, including card acquiring and card processing, mass payout services via Visa Direct and Mastercard MoneySend, and integration…
Serves B2B customers across diverse industries and growth stages, particularly businesses operating in regulated or compliant environments that need payment acceptance, mass payout and alternative…
Financial Health
StrongStrong
Location
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Computed from 4 filingsProvides courier and logistics services including same-day and overnight delivery, pallet distribution, international shipping, and final‑mile transport. Also offers warehousing, storage, fulfilment,…
Serves businesses needing same-day courier, pallet freight, scheduled delivery, international shipping, and storage or fulfilment services across the UK, Ireland and Europe.
Financial Health
StrongStrong · Profitable
Location
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Financial sub-scores
Computed from 3 filingsProvides an open banking platform and APIs that connect businesses to European banks, enabling access to financial account data, payment initiation, and data enrichment. Supports account‑to‑account…
Sells B2B to banks, lenders, payment providers, fintechs and enterprise merchants across Europe, including product, payments and developer teams using open-banking infrastructure.
Financial Health
StrongStrong
Location
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Computed from 3 filingsArranges accommodation and travel services for international students, including residence bookings for academic and short stays, booking management, and related support services for students,…
Serves students and parents, including international students, plus education agents and partner organisations arranging academic or short stays in London, Brighton, Leeds and Dublin.
Financial Health
StrongStrong · Profitable, Hiring · 46% CAGR over 2y
Location
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Computed from 5 filingsOrganises and sells package cultural tours and holiday itineraries in Europe, Asia, Africa and other destinations, including flights, hotel accommodation, guided sightseeing tours and coach travel,…
Serves B2C leisure travellers seeking packaged cultural holidays and escorted tours across Europe, Asia, Africa and the Americas, including repeat customers using its regular customer area.
Financial Health
StableStable · -10% CAGR over 6y
Location
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Computed from 5 filingsProvides fertility diagnostics and treatments including IVF, IUI and egg freezing. Offers male and female fertility assessments, genetic testing, counselling, and services such as sperm and egg…
Serves private and NHS-referred fertility patients in the UK, including individuals, couples, LGBTQ+ and transgender patients, plus hospitals and health professionals referring fertility and…
Financial Health
HealthyHealthy · Profitable, Hiring · 18% CAGR over 4y
Location
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Computed from 5 filingsProvides recruitment and staffing services placing permanent, contract, and executive roles. Focuses on sectors including energy and utilities, engineering and renewables, technology, insurance,…
Serves companies hiring specialist permanent, contract, executive and project talent, plus candidates, across energy and utilities, renewables, technology, MEP/FP engineering, insurance, commodities…
Financial Health
StrongStrong · Growing, Hiring · 37% CAGR over 5y
Location
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Computed from 5 filingsProvides umbrella company and payroll services for contractors and agencies, including PAYE and CIS payment processing, payslip management, and compliance support. Offers worker portals, payroll…
Sells to individual contractors and temporary workers using umbrella PAYE or CIS payroll, plus recruitment agencies placing them. Serves workers across sectors including logistics, IT, warehousing,…
Financial Health
HealthyHealthy · Hiring · 195% CAGR over 5y
Location
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Computed from 5 filingsProvides flexible funding products for small and medium-sized businesses, including revolving credit facilities and debt consolidation lines. Offers tools and resources such as performance…
Serves UK SMEs and founders of growing businesses, with partner channels and introducers also addressed for referrals and business support.
Financial Health
StrongStrong · Growing, Hiring · 43% CAGR over 4y
Location
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Computed from 5 filingsProvides electronic trade execution, prime brokerage and custody services for professional market participants. Offers multi‑asset trading, liquidity and cash management, and portfolio management for…
Serves professional financial-sector clients in alternative investments, including emerging managers, family offices, proprietary trading groups and broker-dealers across the UK, Europe, Asia and the…
Financial Health
StrongStrong · Growing, Hiring · 20% CAGR over 4y
Location
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Computed from 5 filingsOperates a group of budget hotels offering short‑stay accommodation. Provides guest rooms and basic hotel facilities and accepts reservations through its website for several properties, including the…
Serves budget-conscious leisure and business travellers seeking central London accommodation, including tourists visiting Covent Garden and guests needing access to King’s Cross, St Pancras…
Financial Health
HealthyHealthy · Hiring · 2% CAGR over 4y
Location
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Computed from 5 filingsOnline retailer of diamond and gemstone jewellery, selling engagement rings, wedding rings, earrings, pendants and bracelets in metals such as platinum, gold and silver, including pieces with natural…
Serves UK consumers buying engagement and wedding jewellery, diamond accessories and gifts for partners, family and occasions, with ranges for women, men and different budgets.
Financial Health
StrongStrong · Profitable, Growing, Hiring · 40% CAGR over 4y
Location
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Computed from 3 filingsProvides recruitment and staffing services, placing temporary and permanent professionals in public sector roles including education, social work, nursing, occupational therapy, housing, criminal…
Serves UK employers and jobseekers across local authorities, schools, education, social work, housing, criminal justice, nursing, midwifery, occupational therapy and allied health professions.
Financial Health
HealthyHealthy · Hiring · 13% CAGR over 2y
Location
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Computed from 3 filingsProvides healthcare recruitment and staffing services, supplying nurses, doctors, allied health professionals, healthcare assistants and health science staff to hospitals, clinics and care providers,…
Serves hospitals, clinics, care facilities and healthcare workforce teams needing nurses, doctors, AHPs, healthcare assistants and health science staff, alongside healthcare professionals seeking UK…
Financial Health
HealthyHealthy · Hiring · 16% CAGR over 2y
Location
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Computed from 5 filingsOperates a cash‑and‑carry wholesale grocery business supplying retailers and consumers with branded food, beverages, and confectionery, along with household goods such as health and beauty products,…
Serves independent retailers, wholesale grocery businesses and other trade account customers, alongside local retail shoppers, with emphasis on buyers in Hayes and London.
Financial Health
StrongStrong · Growing, Hiring · 57% CAGR over 4y
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Computed from 3 filingsDevelops cloud-based management information and finance software for education institutions. Provides systems for pupil data management, school administration, accounting, parent and student portals,…
Serves education-sector organisations, including primary and secondary schools, multi-academy trusts, SEND and all-through schools, maintained schools, local authorities and school finance or…
Financial Health
StrongStrong · Profitable
Location
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Computed from 5 filingsProvides private gynaecology and women’s health services, including consultations, diagnostics and treatment for conditions such as fibroids, endometriosis and PCOS, as well as fertility assessments,…
Serves private female patients from age 13 onward, including adolescents and adults seeking women’s health care in London, both self-paying and through major health insurers.
Financial Health
StrongStrong · Growing, Hiring · 34% CAGR over 4y
Location
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Computed from 5 filingsProvides recruitment and talent services for the life sciences sector, supplying contract and permanent staff. Offers direct hire, retained search, managed service programmes, RPO, and executive…
Serves life sciences employers and professionals, including pharmaceuticals, biotech, consumer health, pathology, medical devices, diagnostics, digital health, healthcare communications, CRO/CDMO,…
Financial Health
StrongStrong · Hiring · 6% CAGR over 4y
Location
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Computed from 5 filingsProvides foreign exchange services and currency risk management for corporate and institutional clients. Authorised to offer contracts for difference linked to cash‑settled foreign exchange swaps and…
Serves corporate and institutional clients with foreign exchange and currency management needs, including organisations using FX swaps and non-deliverable forwards.
Financial Health
StrongStrong · Hiring · 66% CAGR over 4y
Location
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Computed from 3 filingsProvides recruitment and staffing services for construction, property, energy and industrial sectors, including senior appointments, blue‑collar labour supply, international placements and payroll…
Serves construction, industrial, property and energy employers, as well as jobseekers from blue-collar operatives to senior appointments, including candidates for international placements.
Financial Health
HealthyHealthy · Hiring · 26% CAGR over 2y
Location
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Computed from 3 filingsOperates an international real estate brokerage network and online platform listing residential properties for sale and rent. Connects buyers and sellers through affiliated agencies and agents and…
Serves international residential property buyers, renters, sellers and investors, including individuals seeking homes or apartment rentals across global markets.
Financial Health
StrongStrong
Location
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Computed from 4 filingsOperates a cybersecurity platform that runs bug bounty and vulnerability disclosure programs, connecting organisations with vetted ethical hackers to identify software vulnerabilities. Also provides…
Sells to businesses and public sector organisations running security testing programmes, especially teams in retail, gaming, finance, hospitality, SaaS, telecoms, transport, healthcare, media,…
Financial Health
StrongStrong · Hiring · 17% CAGR over 3y
Location
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Computed from 5 filingsProvides support services to an affiliated company that develops and operates a developer data platform. Activities include assisting with sales, marketing, and technical support for cloud database…
Serves software developers, startups, AI innovators and enterprise technology teams, with industry focus on financial services, telecoms, healthcare, retail, public sector and manufacturing.
Financial Health
StrongStrong · Hiring · 28% CAGR over 5y
Location
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Computed from 5 filingsSupplies wholesale food and drink products to cafés, delis, restaurants, hotels and pubs, including freshly squeezed and cold‑pressed juices, dairy and cheese, meat, fish, charcuterie, soups, sauces,…
Serves B2B food-service customers across London, including cafés, delis, restaurants, hotels, pubs, contract caterers, multi-site operators and other wholesalers.
Financial Health
StrongStrong · Hiring · 7% CAGR over 5y
Location
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Computed from 4 filingsProvides recruitment services for the driving, transport, warehouse and industrial sectors, supplying temporary and permanent staff. Sources and places drivers and industrial workers for client…
Serves UK businesses in the driving, transport, warehouse and industrial sectors needing temporary or permanent staff, alongside drivers and industrial candidates seeking roles.
Financial Health
HealthyHealthy · Hiring · 116% CAGR over 3y
Location
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Computed from 5 filingsProvides corporate travel management services, including planning and booking business trips, flights, hotels, rail travel, car hire and transfers. Also offers visa support, itinerary management,…
Sells to businesses needing managed corporate travel, including business owners, travel managers, travel bookers, executive assistants and individual business travellers. Serves organisations with…
Financial Health
HealthyHealthy · -9% CAGR over 4y
Location
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Computed from 5 filingsOperates an outpatient gynaecology and fertility clinic providing fertility assessments and treatments including IVF, ICSI, IUI, egg freezing, ovulation induction, genetic testing, and donor…
Serves private patients in London seeking fertility and gynaecology support, including couples, single women, LGBTQ+ families, people preserving fertility, and patients with male or female…
Financial Health
HealthyHealthy · Hiring · 21% CAGR over 4y
Location
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Computed from 5 filingsProvides grab hire and skip hire services, waste collection and rubbish clearance for construction and domestic projects, including muck away, site clearance, roll‑on/roll‑off skips, and delivery of…
Serves domestic homeowners, tradespeople and commercial construction/site clients across Greater London and surrounding counties.
Financial Health
StrongStrong · Profitable, Growing, Hiring · 60% CAGR over 4y
Location
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Computed from 2 filingsSupplies and distributes fresh and prepared fruit and vegetables, dairy products, frozen items, juices and dry goods to the foodservice sector. Sources produce from UK and international growers for…
Serves UK foodservice businesses, including hotels, restaurants, contract caterers, healthcare providers and education sector kitchens, with buyers such as chefs and catering procurement teams.
Financial Health
StrongStrong · Profitable, Growing, Hiring · 96% CAGR over 1y
Location
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Computed from 3 filingsProvides insurance and protection products for vehicles sold through automotive dealerships, including GAP insurance, tyre and alloy cover, SMART repair insurance, and paint and fabric protection,…
Serves UK automotive dealerships and dealer groups, with policies ultimately used by car buyers and vehicle owners purchasing through those dealerships.
Financial Health
StrongStrong · Hiring · 9% CAGR over 2y
Location
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Computed from 5 filingsProvides recruitment and staffing services, supplying temporary and permanent workers to businesses, particularly in industrial and hospitality sectors. Offers on-site and branch-based recruitment…
Serves B2B clients with temporary or permanent staffing needs in industrial and hospitality sectors, including large companies and smaller local businesses across London, Kent and the Midlands.
Financial Health
StrongStrong · Growing, Hiring · 32% CAGR over 4y
Location
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Computed from 2 filingsProvides travel agency services specialising in tailor‑made package holidays. Arranges flights, hotels, cruises, tours, island‑hopping and multi‑centre trips to destinations in Europe, the Middle…
Serves UK holidaymakers—couples, families and groups—seeking luxury, tailor-made beach, cruise, tour and multi-centre trips, and also supports travel agents booking packages for their clients.
Financial Health
StrongStrong · Hiring · 17% CAGR over 1y
Location
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Computed from 5 filingsProvides recruitment consultancy and staffing services for the legal sector, placing permanent and temporary professionals in roles including paralegal, compliance, legal finance, HR, marketing, and…
Serves law firms and legal-sector employers in London and the UK, including Magic Circle, Big Four, boutique and private practices, alongside candidates across legal, compliance, finance, HR,…
Financial Health
StrongStrong · Hiring · 13% CAGR over 4y
Location
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Computed from 5 filingsProvides a financial research platform that aggregates macroeconomic and financial market data from multiple sources and offers tools for analysis, charting, visualization, and report creation used…
Serves B2B financial and economic research users at hedge funds, investment banks, asset managers, research institutions, pension funds and corporations, including economists, strategists and traders.
Financial Health
StrongStrong · Growing, Hiring · 44% CAGR over 4y
Location
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Computed from 4 filingsProvides managed IT services including cybersecurity monitoring, cloud infrastructure management, unified communications, backup and disaster recovery, and IT support. Also supplies hardware and…
Serves established businesses and schools across London and its boroughs, including organisations with remote staff and compliance, data privacy and security-focused technology requirements.
Financial Health
StrongStrong
Location
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Computed from 5 filingsProvides end-to-end event management services for corporate and association clients, including event planning and delivery, attendee registration and badging, tradeshow management, marketing support,…
Serves B2B technology brands, commercial organisations, not-for-profits and associations, including pharma and healthcare clients, primarily targeting marketing, events and communications teams.
Financial Health
StrongStrong · Growing, Hiring · 13% CAGR over 4y
Location
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Computed from 4 filingsProvides market research data collection services, including survey programming, sampling and access to global respondent audiences, data processing, and analysis. Combines a proprietary platform…
Sells to B2B market research teams and insight professionals needing survey data collection, including agencies, consultancies, and in-house research functions at larger organisations seeking global…
Financial Health
StrongStrong · Growing, Hiring · 59% CAGR over 3y
Location
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Computed from 5 filingsProvides luxury travel planning and booking services, arranging bespoke itineraries, hotel and villa reservations, first and business class flights, private jet and yacht charters, ground transport,…
Serves affluent leisure and business travellers seeking tailored luxury trips, premium hotel stays, villas, private aviation, yacht charters and concierge support worldwide.
Financial Health
StrongStrong
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Computed from 5 filingsDevelops and operates digital advertising technology platforms that connect advertisers with online publishers. Provides demand‑side and supply‑side platforms, ad formats, audience data tools, and…
Serves B2B customers: brands and advertising agencies seeking omnichannel digital advertising, plus digital publishers and game/media owners monetising inventory, across Europe and global markets.
Financial Health
StrongStrong · Hiring · 22% CAGR over 4y
Location
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Computed from 5 filingsOperates a boutique hotel providing short‑stay accommodation in 44 rooms and suites, with on‑site dining through the Dieci Italian restaurant, a cigar terrace and bar, and guest services for leisure…
Serves leisure and business travellers seeking boutique stays in central London, including families, solo explorers, city-break visitors, shoppers and tourists visiting Marylebone and nearby…
Financial Health
StrongStrong · -77% CAGR over 3y
Location
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Computed from 3 filingsOperates a live comedy venue hosting stand‑up comedy shows and events featuring professional and guest comedians. Sells tickets online, offers gift vouchers and memberships, and provides an on-site…
Sells to consumers seeking live stand-up comedy nights in London, including local residents, West End visitors, comedy fans, groups, and gift voucher buyers.
Financial Health
StrongStrong · Growing, Hiring · 15% CAGR over 2y
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Computed from 5 filingsProvides tool and equipment hire for construction, maintenance and site work, including access equipment, power tools, plant machinery, lighting, generators and safety equipment. Also supplies…
Serves construction contractors, tradespeople, site managers and maintenance teams, primarily trade account customers working on building, infrastructure, fit-out and property projects in London and…
Financial Health
HealthyHealthy · Profitable, Hiring · 2% CAGR over 5y
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Computed from 5 filingsProvides wholesale travel services to travel agents, offering bookings for resort accommodation, villas and curated itineraries across destinations including the Maldives, Mauritius, Sri Lanka, the…
Serves B2B travel trade clients, mainly travel agents and tour operators seeking luxury resort, villa, bespoke itinerary and MICE options in the Maldives, Mauritius, Sri Lanka, Seychelles and the…
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
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Computed from 5 filingsProvides regulated investment and wealth management advice to high‑net‑worth individuals and families. Uses proprietary technology to aggregate financial accounts, analyse performance, risk and…
Serves high-net-worth individuals and families who want independent oversight of complex personal wealth, financial affairs and lifestyle-related financial planning.
Financial Health
StrongStrong · Hiring · 23% CAGR over 4y
Location
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Key facts
About 5% of the trading cohort reports turnover above £5M (511 of 8,617 firms) — the rest sits below that revenue band.
7% of the cohort was incorporated since 2022 (629 firms), so a sizeable share is in its first few filing cycles.
What else do reCAPTCHA users run?
Share of the 8,617 reCAPTCHA-running UK companies where each technology was also detected. As of June 2026.
Who runs reCAPTCHA in the UK?
By sector
Sectors overlap, so shares need not sum to 100%.
By financial health
From filed accounts; firms with fewer than two filings show as insufficient history.
6
Median headcount
£547.7K
Median UK turnover
5.9%
Above £5M turnover
629
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 14,788 companies, alongside financials and websites, in one Excel + CSV file.
How reCAPTCHA 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.
reCAPTCHA is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
reCAPTCHA elsewhere
Frequently asked questions
How many companies in London use reCAPTCHA?
How is reCAPTCHA usage detected?
What kinds of companies use reCAPTCHA in London?
What do reCAPTCHA users in London also run?
How fresh is this data?
Can I get contact details for these companies?
Buy all 14,788 companies as a spreadsheet.
One Excel/CSV file with company details, websites and key data — yours to download and use.