Companies Using Essential Blocks in London: 61 Active Firms (2026)
Companies running modular website block technology publish structured content and storefront pages for London-based operations.
For London adopters, this modular block stack usually sits with marketing, ecommerce and operations teams rather than central engineering. It lets non-developers assemble landing pages, service pages, case-study layouts and storefront sections from reusable components, with agencies or freelance developers handling theme work and performance fixes. Use of the stack tends to signal a business with a commercial website doing more than brochure publishing: lead capture, local service discovery, campaign pages, checkout support or customer self-service. Engagements are usually modest by enterprise standards, centred on site builds, plugin configuration, content modelling, analytics tagging and conversion testing rather than long procurement cycles.
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London has 61 actively trading companies running this modular website block stack. Reported employment totals 627 people among reporting users, putting the adoption picture in small-employer territory rather than among large enterprise web estates. Median turnover is about £421,000, while only a small minority sits above the £5M turnover threshold; recent incorporation is also limited. Sector mix is fairly spread, with construction, SaaS, field services, managed IT and applied AI all present. That pattern fits a tool used by commercially dependent websites whose owners need frequent page changes without maintaining large in-house web teams.
UK businesses using this kind of website stack are not licensed for the stack itself. The practical controls sit around what the site collects and sells. ICO guidance under PECR expects operators to tell users when cookies or similar technologies are present, explain their purpose and obtain consent unless they are essential to a service requested by the user. Where those tools process personal data, UK GDPR and the Data Protection Act apply as well. Storefront operators also have to account for consumer-rights, distance-selling and unfair-trading rules, so web changes can have legal as well as design consequences.
Adoption appears likely to remain tied to practical website maintenance rather than board-level technology strategy. Smaller commercial teams tend to value reusable blocks because they reduce dependence on developers for routine page changes, but the same plugin-heavy model can create performance, accessibility and consent-management work. Agencies may keep shaping implementation choices, particularly where storefronts, booking flows or gated content sit beside ordinary marketing pages. Some users will migrate toward bundled managed platforms as privacy tooling and support expectations rise; others will stay with modular components because the switching cost and content clean-up burden are awkward.
Adoption by company size
Adoption of Essential Blocks varies by company size across the trading companies in this cohort. 0% of the 532,485 companies with under 10 employees run Essential Blocks (41 detected). 0.1% of the 15,364 companies with 10–50 employees run Essential Blocks (20 detected). 0% of the 1,763 companies with over 50 employees run Essential Blocks (0 detected).
61
Active firms
2026
3
Above £5M turnover
Trading firms
7
Median headcount
Filed accounts
112
Verified contacts
Across this cohort
Top companies using Essential Blocks 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 5 filingsProvides estate agency services for residential and commercial property, listing flats, houses, land, and commercial units for sale or rent. Operates an online property search platform and…
Serves residential renters and property buyers, plus landlords seeking tenants. Also addresses commercial property seekers looking for offices, shops or warehouses.
Financial Health
StrongStrong · Hiring · 24% CAGR over 4y
Location
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Computed from 3 filingsOperates an online grocery store selling Asian food products, including fresh vegetables, frozen dim sum, noodles, sauces, snacks, beverages, and cooking ingredients. Also offers kitchen tools and…
Serves B2C shoppers, including households and home cooks seeking Chinese, Korean and wider East Asian groceries, frozen dim sum, fresh produce, snacks and kitchen items online.
Financial Health
StrongStrong · Hiring · 41% CAGR over 2y
Location
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Computed from 5 filingsDevelops and operates a legal market data platform that aggregates and analyses publicly available information on lawyers and law firms. Provides searchable databases, market intelligence tools, and…
Serves law firms, specialist legal recruiters, investors, media organisations, service providers to the legal sector, and individual lawyers seeking UK and Ireland legal market intelligence.
Financial Health
StableStable · Hiring · 17% CAGR over 5y
Location
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Computed from 3 filingsProvides training, courses and events on business acquisition and mergers and acquisitions. Offers webinars, toolkits, membership programmes, mastermind groups and networking events that teach…
Serves aspiring and experienced entrepreneurs, business buyers and M&A dealmakers, from first-time acquirers to those building groups of companies.
Financial Health
WeakWeak · 0% CAGR over 2y
Location
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Computed from 5 filingsProvides education recruitment services, supplying schools and colleges with teaching and support staff. Recruits roles including teachers, cover supervisors, teaching assistants and SEN staff, and…
Serves schools and education providers in London and the Home Counties, including nurseries, primary and secondary schools, colleges, universities and SEND settings, plus teachers and support staff…
Financial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
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Computed from 5 filingsOperates a letting and property management service offering co‑living accommodation. Markets and rents private rooms in shared flats, with all‑inclusive bills, cleaning services, maintenance support,…
Targets B2C renters in London, especially students, young professionals and individuals seeking flexible co-living rooms with shared communal spaces and all-inclusive bills.
Financial Health
StableStable · -4% CAGR over 4y
Location
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Computed from 5 filingsProvides online customer insight communities for brands, enabling ongoing engagement and research with consumers. Offers community management, surveys, polls, forums, and co‑creation programmes such…
Serves B2B brand, innovation, product and customer experience teams at consumer-facing companies that need ongoing access to customer communities and co-creation insights.
Financial Health
DistressedDistressed · -4% CAGR over 4y
Location
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Computed from 2 filingsOperates health and wellness clinics providing osteopathy, musculoskeletal physiotherapy and chiropractic care. Offers shockwave therapy, medical acupuncture, massage, podiatry, Pilates sessions,…
Serves private consumers and medical-insurance patients in London, including adults, parents and children, men seeking sexual health treatments, and clients looking for musculoskeletal, podiatry,…
Financial Health
StableStable · -7% CAGR over 1y
Location
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Computed from 5 filingsDevelops contextual AI technology for digital advertising. Provides tools that classify and analyse online content and bidstream signals to enable cookie‑free ad targeting, campaign optimisation, and…
Serves enterprise brands, media agencies, broadcasters, publishers, online platforms and adtech partners involved in digital, programmatic and CTV advertising.
Financial Health
HealthyHealthy · -54% CAGR over 5y
Location
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Computed from 5 filingsProvides English language training courses for international students, including general English, business English, IELTS preparation, and individual lessons. Offers junior programmes, online…
Serves international adult learners, young learners and parents seeking English courses in London or online, plus professionals needing business English or IELTS preparation and organisations…
Financial Health
WeakWeak · -1% CAGR over 4y
Location
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Computed from 3 filingsProvides marketing services for fintech and B2B technology companies, including lead generation, search engine optimisation, social media marketing, content creation, copywriting, brand messaging,…
Serves B2B technology companies, especially fintech, enterprise tech and digital infrastructure brands, from ambitious start-ups to established international players seeking market entry, growth and…
Financial Health
WeakWeak · -9% CAGR over 2y
Location
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Computed from 5 filingsOperates an online retail store selling darts-themed clothing and merchandise, including branded T‑shirts, polo shirts, hoodies, hats and accessories. Offers signature apparel linked to professional…
Serves darts fans, amateur and professional players, darts clubs and families buying adult or kids merchandise, including supporters of named professional players.
Financial Health
StableStable
Location
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Computed from 5 filingsProvides card payment processing solutions for businesses, including countertop, portable and mobile card machines, online payment gateways and EPOS systems. Also offers merchant cash advances,…
Serves UK businesses that need card and online payment acceptance, including retail stores, restaurants and hospitality operators, mobile service providers and e-commerce merchants.
Financial Health
StrongStrong · Hiring · 22% CAGR over 4y
Location
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Computed from 5 filingsProvides private hire minicab services for local journeys and airport transfers. Operates a fleet including saloon, estate and MPV vehicles, offering pre-booked passenger transport, meet-and-greet…
Serves consumers and travellers in Ealing and nearby West London areas, including residents, visitors, commuters, airport passengers and people needing local point-to-point minicab journeys.
Financial Health
StableStable · Hiring · 14% CAGR over 4y
Location
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Computed from 5 filingsProvides building maintenance and engineering services including electrical repairs and testing, mechanical and HVAC support, plumbing, and building fabric works. Delivers planned preventative…
Serves commercial property managers, corporate offices, healthcare sites, public sector buildings, warehouses, retail parks and managed facilities across London and the South East.
Financial Health
WeakWeak · Hiring · 4% CAGR over 4y
Location
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Computed from 5 filingsProvides vocational training courses in building services engineering trades including plumbing, refrigeration and air conditioning, electrical installation, gas engineering, renewable energy systems…
Serves individual learners, apprentices and tradespeople, plus employers and organisations upskilling staff in plumbing, gas, electrical, refrigeration/air-conditioning, retrofit and renewable energy.
Financial Health
WeakWeak · 0% CAGR over 4y
Location
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Computed from 2 filingsProvides tax and regulatory compliance services for e‑commerce and international businesses, including VAT registration and filing, EPR and product compliance support, EORI registration, accounting,…
Serves e-commerce sellers, online retailers, manufacturers and importers trading internationally, especially businesses selling into the UK, EU and US.
Financial Health
StrongStrong
Location
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Computed from 5 filingsDevelops AI-powered supplier discovery and market intelligence software for procurement teams. The platform searches and analyses global supplier data, maps vendor landscapes by category and…
Serves B2B procurement professionals, category managers and sourcing teams in organisations researching suppliers, markets and product categories across geographies.
Financial Health
WeakWeak · Hiring · 25% CAGR over 4y
Location
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Computed from 5 filingsSells business mobile phone contracts and SIM‑only plans from networks including EE, Vodafone, O2 and Three. Retailer of smartphones, tablets and accessories, and also offers mobile broadband,…
Serves UK business customers, from sole traders, startups and SMEs to larger teams, purchasing mobile connectivity and work devices for staff across major networks.
Financial Health
HealthyHealthy · -1% CAGR over 4y
Location
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Computed from 5 filingsProvides scaffolding services for construction projects, including commercial and residential scaffolding, demolition and refurbishment access structures, temporary roofing, and bespoke scaffold…
Serves commercial construction clients, property developers, contractors, and large residential project owners in London, including demolition, refurbishment, cladding replacement and heritage…
Financial Health
HealthyHealthy · -62% CAGR over 4y
Location
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Computed from 5 filingsProvides theatrical costume hire, design and manufacture for stage productions. Maintains a large warehouse stock and supplies full or partial costume sets to professional companies, amateur groups,…
Serves B2B and institutional customers in theatre and live performance, including amateur drama groups, professional production companies, schools, colleges and stage schools, plus corporate buyers…
Financial Health
StableStable · Hiring · 6% CAGR over 4y
Location
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Computed from 5 filingsProvides man-and-van waste clearance and rubbish removal services for households and businesses, including collection of furniture, appliances, garden and construction waste, fly‑tipping clearance,…
Serves households, landlords, offices, fit-out contractors, builders and commercial premises in London needing same-day rubbish, construction, garden, furniture or hazardous waste collection.
Financial Health
StableStable · -13% CAGR over 4y
Location
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Computed from 5 filingsProvides English language education through face-to-face and online courses, including general English, speaking and workplace English classes, evening lessons and one-to-one tuition, plus…
Serves individual English-language learners, including UK residents and overseas students, who need general, work-focused, exam-preparation, evening, one-to-one or online study options.
Financial Health
WeakWeak · -2% CAGR over 4y
Location
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Computed from 3 filingsProvides software and advisory services for private market investors and companies to collect and manage sustainability and ESG data, calculate greenhouse gas emissions, assess climate risk, and…
Sells to private markets participants, especially investors and portfolio companies needing ESG, carbon and regulatory data management. Serves business users handling sustainability, risk, compliance…
Financial Health
StrongStrong · Hiring · 72% CAGR over 2y
Location
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Computed from 5 filingsDevelops CRM software for publishing and media companies. Platform manages advertising sales, subscriptions, events, circulation and multi‑platform campaigns, providing tools for customer data…
Serves B2B publishing and media organisations, including independent publishers, growing media companies, established publishers adding revenue streams, and multi-client or contract publishing…
Financial Health
WeakWeak · Hiring · 3% CAGR over 4y
Location
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Computed from 4 filingsProvides catering services for workplaces and events, including daily staff food service, corporate lunches, bar and coffee services, and large-scale event catering. Designs and prepares menus with…
Serves corporate workplaces, campus operations, facilities and office managers seeking employee food, bar and event catering services, including large company teams with dietary and wellness…
Financial Health
HealthyHealthy · Hiring · 77% CAGR over 3y
Location
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Computed from 3 filingsDesigns and supplies clocks and watches, including digital and analogue alarm clocks, wall clocks, mantel clocks, radio‑controlled timepieces, weather station clocks, and talking watches, along with…
Serves consumers buying home timepieces and watches, plus trade buyers and retailers looking to stock clock, alarm, watch and weather station ranges.
Financial Health
StrongStrong · Hiring · 26% CAGR over 2y
Location
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Computed from 5 filingsProvides residential building and refurbishment services including construction, renovations, basement development and bespoke joinery. Also offers property maintenance, management and aftercare for…
Serves property owners and managers seeking building, refurbishment, joinery, basement and aftercare services, likely in the residential property market. Targets clients with high-specification homes…
Financial Health
WeakWeak · 0% CAGR over 4y
Location
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Computed from 5 filingsOperates Middle Eastern food outlets and catering services serving Lebanese and Syrian dishes including falafel, chicken shawarma, lamb kofta, halloumi wraps and sweets. Provides halal street food…
Serves London consumers seeking halal Lebanese and Syrian food at food halls and markets, plus businesses and event organisers needing office or event catering.
Financial Health
HealthyHealthy · Hiring · 50% CAGR over 4y
Location
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Computed from 2 filingsManufactures personal care products based on Dead Sea minerals, including facial skincare, bath and body products, and hair care. Develops and markets multiple branded product lines distributed…
Sells B2B to health and beauty retail chains and distributors worldwide, and B2C to consumers seeking Dead Sea personal care brands, with stated markets including the USA, Canada, Europe and the UK.
Financial Health
WeakWeak · 0% CAGR over 1y
Location
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Computed from 5 filingsProvides commercial cleaning services for offices and workplaces, including schools, nurseries, restaurants, bars and medical practices. Services include routine office cleaning, kitchen and window…
Serves businesses and institutions in London and surrounding areas, including offices, serviced offices, bars, restaurants, Airbnb hosts, schools, nurseries, student accommodation providers, and…
Financial Health
HealthyHealthy · -11% CAGR over 5y
Location
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Computed from 5 filingsProvides financial advisory services focused on pension transfers and retirement planning, including defined benefit and defined contribution pension transfers, SIPP and QROPS transfers, investment…
Targets individual clients with UK pension assets, including UK residents and expatriates/non-UK residents, particularly holders of defined benefit, defined contribution, SIPP or QROPS schemes…
Financial Health
StrongStrong · Hiring · 32% CAGR over 4y
Location
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Computed from 5 filingsOperates day nurseries and preschools providing childcare and early years education for children aged 3 months to 5 years. Offers play‑based learning, daily activities, meals, and funded childcare…
Sells to parents and families seeking nursery and preschool care for children aged 3 months to 5 years, including those using funded childcare schemes, in Greenford, Palmers Green and West Hendon.
Financial Health
StrongStrong · Growing, Hiring · 6% CAGR over 4y
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Computed from 2 filingsProvides international recruitment and executive search services, sourcing and placing senior talent for companies expanding into new markets. Also offers employer of record services, global hiring…
Serves B2B mid-market companies and agile enterprises pursuing international expansion, including business leaders and HR teams responsible for global hiring, executive recruitment and market-entry…
Financial Health
WeakWeak · -8% CAGR over 1y
Location
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Computed from 4 filingsProvides accounting and tax services for sole traders and private limited companies, including company incorporation, bookkeeping, payroll, VAT returns, accounts production, corporation tax returns,…
Sells to UK small businesses and individuals, including sole traders, private limited companies, SME owners, entrepreneurs and UK branch operations. Serves clients in eCommerce, hospitality,…
Financial Health
StrongStrong · Growing, Hiring · 11% CAGR over 4y
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Computed from 5 filingsWholesale distributor of food and catering supplies, including frozen chicken fillets and wings, sliced and pizza cheese, gravy mixes, seasonings, and fast‑food packaging such as burger boxes,…
Serves B2B foodservice customers such as takeaways, fast-food outlets, restaurants and caterers, plus other trade buyers needing wholesale food, packaging and cleaning supplies.
Financial Health
StrongStrong · Growing, Hiring · 11% CAGR over 4y
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Computed from 5 filingsProvides geotechnical and environmental engineering consultancy, including site and soil investigations, land contamination assessments, flood risk and environmental impact assessments, basement…
Serves UK property developers, construction and infrastructure project teams, landowners and public sector bodies involved in land acquisition, planning, redevelopment and major building projects.
Financial Health
HealthyHealthy · Growing, Hiring · 17% CAGR over 4y
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Computed from 5 filingsOperates audio recording and post‑production studios offering sound recording, editing, and sound design for radio, television, drama, podcasts, education, animation, and corporate media. Facilities…
Serves B2B producers and production companies working in radio, television, drama, education, animation, spoken word, corporate media, multimedia, podcasts and games.
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides security services including manned guarding, CCTV monitoring, mobile patrols, key holding and alarm response. Also supplies security staff for construction sites, retail, events and…
Serves businesses and property owners across the UK, including construction sites, vacant properties, retailers, event organisers, offices, residential developments and clients needing temporary or…
Financial Health
StrongStrong · Growing, Hiring · 154% CAGR over 4y
Location
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Computed from 3 filingsDistributes surgical and medical equipment including skin staplers, thoracentesis and paracentesis sets, suction and irrigation systems, chest drainage units, cannulas and tubing, and robotic surgery…
Sells to healthcare facilities, hospital procurement teams and surgical departments, serving clinicians in general, thoracic, gynaecological, orthopaedic, cardiac, urology and plastic surgery across…
Financial Health
WeakWeak · 0% CAGR over 2y
Location
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Computed from 3 filingsInstalls solar photovoltaic systems for residential and commercial properties. Provides system design, installation, maintenance and monitoring services, battery energy storage solutions, and energy…
Serves homeowners, businesses and community organisations seeking residential and commercial solar energy solutions, battery storage, maintenance and energy consultancy.
Financial Health
DistressedDistressed · -13% CAGR over 2y
Location
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Computed from 5 filingsProvides consultancy, implementation and training for Microsoft Dynamics 365 and Microsoft Power Platform. Develops customised CRM systems, customer service, sales and field service solutions, and…
Serves businesses and organisations using Microsoft Dynamics 365 and Power Platform, particularly teams responsible for sales, customer service, field service, marketing and project delivery.
Financial Health
WeakWeak · Hiring · 59% CAGR over 3y
Location
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Computed from 2 filingsDevelops data formats and video processing technologies for media, AI, and immersive applications. Creates codec enhancements such as MPEG‑5 LCEVC, immersive video formats, and related intellectual…
Serves B2B and public-sector organisations handling visual data, including media and entertainment studios, broadcasters, XR developers, AI teams, industrial firms, defence bodies, smart city…
Financial Health
StableStable · 1% CAGR over 1y
Location
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Computed from 4 filingsProvides recording and rehearsal studio facilities and hires professional audio, lighting, staging and video equipment for events. Delivers technical production support for live music tours,…
Serves event production companies, touring and festival teams, corporate AV buyers, music artists, churches, clubs and carnival organisers needing professional audio, lighting, staging, video,…
Financial Health
WeakWeak · -11% CAGR over 3y
Location
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Computed from 4 filingsDesigns and manufactures prefabricated modular buildings including office studio pods, bathroom pods, home gyms, garden suites and A‑frame kit structures. Produces steel frames and panelised…
Serves homeowners with urban or rural properties and commercial/industrial businesses commissioning bespoke modular spaces, including offices, bathrooms, gyms and garden suites.
Financial Health
DistressedDistressed · -25% CAGR over 3y
Location
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Computed from 5 filingsProvides accounting and tax services including bookkeeping, VAT returns, payroll, CIS and pension administration, preparation of company financial accounts, self‑assessment tax returns, and advice on…
Serves UK businesses needing bookkeeping, VAT, payroll, CIS, pensions and company accounts, alongside individuals requiring self-assessment or capital gains tax support.
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides specialist passenger transport services for children and adults with special educational needs and disabilities. Operates wheelchair-accessible vehicles and MPVs to transport service users…
Serves local authorities, social services, day centres, schools and community organisations needing transport for children and adults with SEND, including wheelchair users, primarily across London.
Financial Health
WeakWeak · Hiring · 19% CAGR over 4y
Location
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Computed from 3 filingsProvides consultancy services including accountancy, business advisory, public relations and communications. Also offers student admission consultancy, assisting domestic and international students…
Serves businesses across industries needing accountancy, business consultancy and PR support, plus students seeking university admissions guidance. Targets both B2B and B2C customers, including…
Financial Health
DistressedDistressed
Location
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Key facts
About 4% of the trading cohort reports turnover above £5M (3 of 61 firms) — the rest sits below that revenue band.
4% of the cohort was incorporated since 2022 (3 firms), so a sizeable share is in its first few filing cycles.
The London cohort is stack-dependent rather than standalone: 86.9% also run a related page-builder, and 49.2% run a companion extension for that builder.
Measurement and marketing tags are common in these sites, with 39.3% also using tag-management tooling and 26.2% using analytics tracking.
Construction is the largest tagged sector at 13.1%, followed by SaaS and field services and trades at 11.5% each.
The ICO treats cookie consent under PECR, with UK GDPR and the Data Protection Act applying where cookies or similar technologies process personal data.
UK web-design services are valued at £658.2M in 2026, with a reported 3.5% CAGR between 2020 and 2025.
What else do Essential Blocks users run?
Share of the 61 Essential Blocks-running UK companies where each technology was also detected. As of June 2026.
Who runs Essential Blocks 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
£421K
Median UK turnover
4.9%
Above £5M turnover
3
Incorporated since 2022
112 verified decision-maker contacts
across these 61 companies, with emails available in Firmbase. Filter by role, seniority and stack.
How Essential Blocks 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.
Essential Blocks is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
Essential Blocks elsewhere
Frequently asked questions
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