Companies Using Fastly in London: 151 Active Firms (2026)
Companies using a content delivery network serve public websites through edge infrastructure, with this cohort based across London boroughs.
Running this edge-delivery stack points to a public web operation where page speed, caching rules, traffic spikes and edge security are owned by engineering, growth or web operations teams rather than left entirely to a hosting provider. Adoption tends to fit firms with digital acquisition, ecommerce, content publishing or customer self-service at the centre of their model. Buyers are usually technical or marketing-operations teams serving B2B and consumer audiences, with procurement framed as recurring internet infrastructure spend linked to analytics, deployment workflows and performance monitoring rather than an ad hoc website-build cost.
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London has 151 active companies running this edge-delivery technology on public websites. Together they report 1,898 employees, giving the cohort a lean employment footprint rather than the profile of a labour-heavy services market. That shape fits the buyer profile: web infrastructure is typically managed by small technical, product or marketing-operations teams inside firms where the public website carries acquisition, service delivery or transaction load. The capital’s mix appears to include software, charity, property and managed-services users, but the common feature is dependence on fast, resilient public web delivery.
Companies running this stack do not face a content-delivery-specific licence regime, but procurement still carries legal and operational weight. Edge infrastructure can process IP addresses, security logs and traffic metadata, so UK GDPR, PECR and ICO guidance matter when teams configure analytics, consent, retention periods and international transfers. Supplier review tends to focus on uptime commitments, incident response, security assurance, subprocessors and exit routes. For consumer-facing, charity or public-sector-adjacent users, accessibility, resilience and auditability can matter as much as raw site speed, particularly where donations, bookings, payments or account access sit behind the public site.
Adoption appears likely to remain tied to revenue-critical websites rather than casual web experimentation. The cohort has a long tail of lean teams, so buyers tend to prefer managed infrastructure that reduces operational burden while still allowing engineering control over caching, releases and security settings. Bundling by hosting, security and analytics providers may make the underlying delivery layer less visible to non-technical buyers. At the same time, privacy-aware measurement, bot traffic, consent handling and resilience reviews keep pulling web performance into board-level risk and revenue conversations, especially for organisations whose public sites carry customer acquisition or service delivery.
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 Fastly rises with company size across the trading companies in this cohort. 0% of the 532,485 companies with under 10 employees run Fastly (106 detected). 0.2% of the 15,364 companies with 10–50 employees run Fastly (35 detected). 0.7% of the 1,763 companies with over 50 employees run Fastly (12 detected). That is a 0.7% gap between the over 50 employees and under 10 employees bands.
151
Active firms
2026
15
Above £5M turnover
Trading firms
5
Median headcount
Filed accounts
409
Verified directors
Across this cohort
Top companies using Fastly 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 3 filingsOperates an online fundraising platform that enables individuals and charities to create fundraising pages, collect donations, run charity campaigns and events, and process contributions online,…
Serves charities, individual fundraisers and donors using online giving, including people raising money for personal, community and nonprofit causes. Targets both organisations and consumers involved…
Financial Health
StableStable · 0% CAGR over 2y
Location
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Computed from 5 filingsProvides cloud-based business management software for fitness, wellness, and beauty businesses, including scheduling, booking, payments, marketing automation, staff management, reporting, and branded…
Serves fitness, wellness and beauty businesses, including gyms, yoga and Pilates studios, personal trainers, spas, massage and physical therapy providers, barbershops and hair salons, from…
Financial Health
WeakWeak · Hiring · 3% CAGR over 4y
Location
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Computed from 5 filingsOperates online travel search engines that aggregate and compare prices for flights, hotels, car rentals and travel packages from airlines and travel booking websites, enabling users to search…
Serves consumers planning travel, including individual leisure travellers comparing flights, hotels, car rentals and packages across airlines and travel sites, with localized sites for Canada and…
Financial Health
StableStable · Profitable
Location
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Computed from 5 filingsProvides commercial and operational support services to affiliated companies that operate online travel metasearch platforms, enabling users to search and compare prices and itineraries for flights,…
Serves a mix of B2C leisure travellers and business travellers worldwide, including corporate travel users, across flights, accommodation, car hire and package travel markets.
Financial Health
HealthyHealthy · Profitable · 1% CAGR over 4y
Location
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Computed from 5 filingsDevelops and operates a commerce offer data platform that aggregates and structures retail promotions from advertisers. Provides APIs, feeds, widgets and link monetisation tools enabling publishers,…
Serves B2B publishers, search engines, OEMs, digital platforms, advertisers and affiliate networks seeking commerce data, audience monetisation, offer feeds and performance marketing partnerships…
Financial Health
DistressedDistressed · 0% CAGR over 4y
Location
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Computed from 5 filingsDevelops and distributes a digital note‑taking application for iOS, Android, Windows and web that enables handwritten and typed notes, handwriting search, audio recording and transcription, document…
Serves a mix of B2C and B2B users: students, teachers and schools, individual planners and journalers, and business teams using digital notes for meetings, workshops and collaboration.
Financial Health
WeakWeak · -6% CAGR over 4y
Location
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Computed from 4 filingsDevelops website optimization software that crawls and analyzes websites to identify technical SEO, performance, accessibility, and quality issues. Provides monitoring, analytics dashboards, QA…
Sells B2B to enterprise website teams, including SEO marketers, web developers, digital operations and accessibility teams, with emphasis on e-commerce, media and publishing companies, and agencies.
Financial Health
DistressedDistressed · -18% CAGR over 4y
Location
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Computed from 5 filingsProvides a cloud-based WebOps platform for building, hosting and managing websites using WordPress and Drupal. Offers managed hosting, deployment workflows, content publishing tools, performance…
Serves marketing, developer and IT teams at organizations running WordPress, Drupal and Next.js websites, including education, consumer brands, government, media, nonprofit and technology sectors,…
Financial Health
WeakWeak
Location
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Computed from 3 filingsProvides a cloud-based WebOps platform for developing, hosting, and managing websites built with WordPress, Drupal, and Next.js. Offers managed hosting, deployment workflows, performance monitoring,…
Serves enterprises, educational institutions, government bodies, nonprofits, media, technology and consumer brand organizations, targeting developers, marketers and IT leaders managing WordPress,…
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 2y
Location
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Computed from 5 filingsProvides an online financial platform for businesses to manage international payments, foreign exchange and multi‑currency accounts. Offers corporate cards, expense and spend management, accounts…
Serves SMEs, accountants and their business clients with cross-border financial operations needs, plus individuals making personal international money transfers. Targets organisations paying…
Financial Health
WeakWeak · Hiring · 4% CAGR over 4y
Location
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Computed from 5 filingsProvides insurance infrastructure and services for brands and insurers, including licensing, regulatory operations, claims management, and API-based software. Enables partners to develop, launch, and…
Serves B2B insurance carriers, underwriters, consumer brands and affinity partners seeking specialty insurance distribution across mobility, travel, devices, retail, booking and registration channels.
Financial Health
StrongStrong
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Computed from 5 filingsDevelops and provides booking and ticketing software for tour operators, attractions, sightseeing tours and hop‑on hop‑off bus services. Platform includes online reservations, OTA integrations,…
Serves B2B operators in travel and visitor attractions globally, including hop-on hop-off and bus operators, sightseeing tour companies, observation decks, cultural venues, and leisure destinations.
Financial Health
HealthyHealthy · -73% CAGR over 4y
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Computed from 5 filingsProvides managed DNS infrastructure and cloud‑based security services, including authoritative DNS, DDoS mitigation, web application firewall, bot management and API protection, helping organisations…
Serves businesses of all sizes with online operations, particularly eCommerce, financial services, healthcare, gaming and gambling, registry/registrar, telecoms, and travel organisations.
Financial Health
StableStable · -4% CAGR over 5y
Location
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Computed from 5 filingsOperates online coupon, discount and cashback platforms across multiple countries. Connects consumers with promotional offers from retail brands and generates sales and customer acquisition for…
Serves a mixed B2C and B2B market: consumers seeking coupon, cashback and voucher offers globally, plus retail brands, advertisers and affiliate networks focused on performance-marketing customer…
Financial Health
StableStable · 0% CAGR over 4y
Location
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Develops AI-powered software platform for private markets firms, providing tools for capital fundraising, deal sourcing and management, and investor relations. Offers applications, data integration,…
Serves private markets firms, including private equity, real assets, real estate/infrastructure and private credit managers, targeting capital formation, deal, investor relations and investor…
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Develops recruitment software that distributes job adverts to thousands of job boards, social media platforms and search engines, and provides tools for candidate sourcing, résumé database search,…
Serves B2B recruitment buyers, including direct employers’ talent acquisition teams and agency recruiters seeking to advertise roles, source candidates and manage high application volumes.
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Computed from 5 filingsDevelops blockchain software and infrastructure for the Ethereum ecosystem, including the MetaMask self‑custody wallet, Infura node access services, developer tools, layer‑2 protocols, and staking…
Serves a mix of consumers, blockchain developers, DeFi application teams and financial institutions using Ethereum-based digital asset infrastructure, wallets, staking and settlement tools.
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides market data, analytics, and research on energy storage and power markets. Offers a platform with revenue benchmarks, forecasts, and valuation tools for battery and solar assets, alongside…
Serves B2B energy market participants, including investors, developers, asset managers, structured finance teams, and traders involved in battery storage, solar, renewables, co-location, and data…
Financial Health
StrongStrong · Growing, Hiring · 75% CAGR over 4y
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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
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Computed from 3 filingsProvides managed detection and response cybersecurity services, including 24/7 security monitoring, threat detection, investigation, and incident response. Develops a security operations platform…
Serves B2B security teams and SOC leaders at organizations of any size across industries, including those operating cloud, email, endpoint, identity, network and SaaS environments.
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 2y
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Computed from 3 filingsDevelops software for managing and operating Apache Kafka data streaming infrastructure. Provides a control‑plane console for monitoring, governance, and access management, and a gateway proxy to…
Targets platform engineering, data engineering and developer teams at enterprises using Kafka, including financial services, retail/e-commerce, and transport/logistics organisations.
Financial Health
StableStable · Hiring · 59% CAGR over 2y
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Computed from 5 filingsDevelops and provides an online learning platform for higher education STEM subjects. The software enables instructors to create interactive courseware, homework and assessments, run placement tests,…
Sells primarily to higher education institutions, especially STEM and maths departments. Serves instructors, course creators, administrators and placement-testing teams at universities and colleges…
Financial Health
StableStable · Hiring · 4% CAGR over 4y
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Computed from 3 filingsDevelops blockchain analytics software and data services used to trace cryptocurrency transactions, assess wallet and exchange risk, monitor transactions for compliance, and support investigations by…
Serves government agencies, law enforcement, regulators, tax authorities, crypto exchanges, financial institutions, insurance firms, cybersecurity companies and web3 businesses operating in digital…
Financial Health
WeakWeak · -10% CAGR over 2y
Location
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Computed from 4 filingsProvides an on-demand pay platform that enables employees to access earned wages before scheduled payday. Integrates with payroll, HR and time‑tracking systems and offers tools such as prepaid cards,…
Serves B2B employers of all sizes across healthcare, grocery, retail, call centres, restaurants, manufacturing, travel, hospitality, public sector and franchise sectors, plus HCM, payroll and…
Financial Health
DistressedDistressed · 29% CAGR over 2y
Location
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Computed from 4 filingsProvides a peer‑to‑peer marketing and student recruitment platform for higher education institutions, enabling universities to connect prospective students with current student ambassadors through…
Serves higher education institutions, especially university recruitment, admissions and marketing teams seeking to engage and convert prospective domestic and international students.
Financial Health
DistressedDistressed · -12% CAGR over 3y
Location
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Computed from 2 filingsDevelops and supplies online casino gaming software for gambling operators, including live dealer table games, game shows and slots. Provides streaming studio systems, game development and platform…
Sells to licensed online casino and gambling operators seeking live casino, game show, slot and first-person game content, with some offerings for land-based casino venues.
Financial Health
HealthyHealthy · Hiring · 25% CAGR over 1y
Location
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Computed from 3 filingsProvides a digital platform for employment and income verification. Uses integrations with HMRC, payroll systems, Open Banking and other data sources to deliver verified work history and earnings…
Serves B2B customers that need employment and income checks, including background screening providers, recruiters, employers, tenant referencing providers and financial services firms.
Financial Health
StableStable · Hiring · 47% CAGR over 2y
Location
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Computed from 5 filingsProvides an online learning platform offering browser-based coding labs, virtual development environments, and auto‑graded assessments for teaching AI, data science, cybersecurity, and software…
Sells to B2B and education buyers delivering technical training, including enterprises upskilling workforces, teams training data, AI, cybersecurity and software skills, plus colleges, universities,…
Financial Health
HealthyHealthy · Hiring · 19% CAGR over 4y
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Operates a swap execution facility (SEF) that provides an electronic trading venue for over‑the‑counter derivatives, including foreign exchange non‑deliverable forwards traded via EBS Market, and…
Targets B2B financial market participants, including banks, broker-dealers, prime brokers, trading venues and institutional counterparties active in FX and OTC derivatives markets.
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Computed from 2 filingsDevelops software for managing fonts and digital creative assets. Provides tools for font discovery, licensing and usage tracking, asset libraries, and compliance reporting to help design teams…
Serves B2B creative teams, global agencies, brands, publishers, marketing departments, and print and packaging firms, targeting creatives, operations managers, IT leaders, and management teams.
Financial Health
WeakWeak · Hiring · 13% CAGR over 1y
Location
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Computed from 3 filingsProvides data, software and managed services to help brands sell on online marketplaces such as Amazon. Services include marketplace analytics, advertising management, content optimisation,…
Serves B2B clients: consumer product brands and agencies selling on Amazon and other online marketplaces, including established and emerging brands in the UK and internationally.
Financial Health
HealthyHealthy · 4% CAGR over 2y
Location
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Computed from 4 filingsDevelops hardware cryptocurrency wallets and related software for securely storing and managing digital assets. Offers devices, wallet applications, backup and multisignature security tools, and…
Serves individual cryptocurrency holders and Web3/DeFi users, plus institutions managing digital assets, crypto resellers, affiliates, co-branding partners and blockchain developers.
Financial Health
StrongStrong
Location
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Computed from 3 filingsDevelops software supply chain management tools for DevOps and security teams, including artifact repositories, package curation, vulnerability and code scanning, release distribution, ML model…
Serves DevOps, DevSecOps, MLOps and security teams at software-driven organisations, from small teams to enterprises, including financial services, public sector, technology, healthcare, gaming,…
Financial Health
StrongStrong · Hiring · 37% CAGR over 2y
Location
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Provides managed IT services including cloud infrastructure management, cloud migration, cybersecurity monitoring, network solutions, and application development. Also delivers data, DevOps, and…
Serves regulated financial services firms, especially alternative investment managers and hedge funds, including organisations managing large AUM across global markets.
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Computed from 3 filingsDevelops a cloud security platform that provides cloud security posture management and vulnerability management. Software analyses infrastructure across AWS, Azure and Google Cloud to detect…
Sells to security, platform and compliance teams at businesses running public or multi-cloud environments, especially fast-growing companies using AWS, Azure or Google Cloud.
Financial Health
DistressedDistressed · 0% CAGR over 2y
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Computed from 5 filingsDevelops and operates education technology platforms for medical training and career preparation, including services that help doctors prepare for specialty training applications, provide…
Serves doctors, surgeons and aspiring medical students seeking career progression, training job applications, masterclasses, and medical school exam/interview preparation.
Financial Health
StrongStrong · Growing, Hiring · 24% CAGR over 4y
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Computed from 5 filingsProvides a cloud platform for managing and analysing engineering test data. Ingests measurements and configuration metadata from test rigs, simulations, and labs, enabling real‑time analysis,…
Serves B2B R&D and engineering teams in manufacturing and energy, including heads of R&D, engineering leads, software/data engineers, systems engineers and test engineers working with lab, field and…
Financial Health
StrongStrong · Hiring · 12% CAGR over 4y
Location
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Computed from 5 filingsProvides financial technology–based working capital financing for businesses, including invoice factoring, reverse factoring, supplier finance, dynamic discounting, and short‑term working capital…
Serves SMEs and larger businesses needing working capital finance, including companies managing customer invoices, supplier payments, public administration debtors, and supply chain financing…
Financial Health
HealthyHealthy
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Computed from 3 filingsDevelops experience management and market research software platforms including survey tools, online panel management, voice‑of‑customer and employee feedback systems, qualitative research…
Serves B2B enterprises, market research agencies and insight teams, especially CX, EX, market research and marketing leaders in sectors such as retail, insurance, travel, healthcare and consumer…
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
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Computed from 2 filingsOperates fitness studios offering high‑intensity interval training classes combining treadmill running and strength training. Also sells branded athletic apparel, accessories, and workout equipment…
Serves B2C fitness consumers and gym-goers seeking high-intensity workouts, plus shoppers of men’s and women’s athletic wear and accessories across multiple listed countries.
Financial Health
HealthyHealthy · Hiring · 23% CAGR over 1y
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Computed from 3 filingsDevelops a data automation platform that generates synthetic and production-like datasets for software testing and development. Provides tools for database generation, data masking, subsetting, and…
Serves enterprise technology, QA and data teams in regulated sectors such as banking, insurance, telecoms, energy, healthcare and life sciences, especially organisations running major ERP, CRM and…
Financial Health
StableStable · Hiring · 18% CAGR over 2y
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Computed from 3 filingsDevelops software for construction site documentation and management, capturing images from smartphones, 360° cameras and drones, and mapping them to plans and BIM models to track project progress,…
Serves B2B construction customers, including general contractors, trade contractors, project teams and asset owners managing jobsites and building projects across the project lifecycle.
Financial Health
WeakWeak · Hiring · 36% CAGR over 2y
Location
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Develops AI-powered software for the automotive aftermarket that provides parts cataloguing, vehicle fitment validation, and automated procurement workflows, integrating with ERP and ordering systems…
Serves B2B automotive parts distributors, suppliers, dealerships, workshops, fleets and vehicle refurbishers, particularly teams handling trade parts ordering, vehicle inspections and repair…
Financial Health
N/AN/A
Location
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Provides marketing and advertising services including integrated creative campaigns, public relations, social media and influencer marketing, brand partnerships, experiential activations, performance…
Serves B2B marketing teams at global and multi-market brands, including consumer, technology, restaurant, healthcare and charity organisations seeking integrated agency support.
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Computed from 3 filingsProvides healthcare market intelligence, data products and consultancy focused on the NHS. Offers benchmarking, stakeholder mapping, policy analysis and events that connect healthcare suppliers and…
Serves senior NHS decision makers, healthcare leaders and supplier partners supporting the NHS, including life sciences, digital health and technology organisations seeking to engage with UK…
Financial Health
WeakWeak · -4% CAGR over 2y
Location
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Computed from 2 filingsDevelops AI software that creates and manages automated “digital workers” to perform business processes such as compliance, finance operations, supply chain tasks and data workflows, with governance…
Serves enterprise teams in regulated and data-heavy industries, including healthcare and life sciences, retail and CPG, financial services, IT and tech, across compliance, procurement, supply chain,…
Financial Health
DistressedDistressed · -27% CAGR over 1y
Location
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Provides enterprise recruiting software including an applicant tracking system, candidate engagement tools, onboarding management, career site management, and AI-driven sourcing and communication…
Serves enterprise employers, especially HR, talent acquisition, HR operations and IT leaders in retail, healthcare, manufacturing, finance and other sectors seeking recruitment and talent management…
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Computed from 5 filingsDevelops digital twin and data science tools for supply chain optimisation and network design. Integrates AI-based modelling with enterprise systems to analyse scenarios, support logistics planning,…
Serves enterprise organisations with complex supply chain and logistics operations, targeting supply chain, operations and transformation leaders managing large networks and strategic optimisation…
Financial Health
HealthyHealthy · Hiring · 19% CAGR over 4y
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Designs and sells tailor‑made long‑haul holidays, including multi‑centre itineraries, escorted tours, safari trips and beach holidays. Provides travel planning through consultants who customise…
Serves B2C holidaymakers, couples and families seeking bespoke long-haul leisure travel, including luxury beach holidays, honeymoons, safaris, escorted tours and multi-centre trips worldwide.
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Key facts
About 9% of the trading cohort reports turnover above £5M (15 of 151 firms) — the rest sits below that revenue band.
5% of the cohort was incorporated since 2022 (8 firms), so a sizeable share is in its first few filing cycles.
SaaS is the largest tagged sector among companies running this CDN, at 17.9% (27 firms), ahead of not-for-profit / charity at 7.9% (12 firms).
The median user reports £579,044 in turnover and 5 employees, so many sites appear to be run by small commercial teams rather than dedicated infrastructure departments.
409 verified directors are associated with the London cohort.
The most common co-detected web platform appears on 55.6% (84 firms), while tag-management technology appears on 49.0% (74 firms).
Financial-status classifications are split: 25.2% (38 firms) are stable, 17.2% (26 firms) are weak and 13.2% (20 firms) are distressed.
What else do Fastly users run?
Share of the 151 Fastly-running UK companies where each technology was also detected. As of June 2026.
Who runs Fastly 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.
5
Median headcount
£579K
Median UK turnover
9.9%
Above £5M turnover
8
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 303 companies, alongside financials and websites, in one Excel + CSV file.
How Fastly 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.
Fastly is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
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Frequently asked questions
How many companies in London use Fastly?
How is Fastly usage detected?
What kinds of companies use Fastly in London?
What do Fastly users in London also run?
How fresh is this data?
Can I get contact details for these companies?
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