Companies Using Perfmatters in London: 96 Active Firms (2026)
Web speed tool adopters optimise page performance, front-end load times and user experience on London-based company websites.
Adoption usually sits with web operations, marketing and ecommerce teams rather than with central IT alone. The tool is a page-speed layer for sites that already depend on content management, analytics, lead capture and conversion tracking; it reduces avoidable front-end work, controls script loading and helps teams keep performance budgets in view. Running this performance stack tends to signal a business with an owned acquisition channel, some internal website ownership and enough commercial dependence on organic search or paid traffic to justify regular tuning. Engagements are usually modest licences plus developer or agency time, not enterprise platform programmes.
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London has 96 actively trading companies running this page-speed stack, a compact adoption cohort rather than a mass-market technology footprint. Reported employment across the cohort totals 954 people, so many adopters appear to be smaller web-dependent businesses rather than large digital platform owners. Adoption is tilted towards service and project-led markets: accounting and audit account for 11.5% of the cohort, construction 10.4%, management consulting 9.4%, SaaS 8.3% and wholesale and distribution 7.3%. That mix fits a tool bought to protect lead generation, brochure-site visibility and campaign conversion, not just checkout speed.
Procurement for this stack usually runs through the website owner, agency partner or marketing operations function, with technical review focused on compatibility, update cadence and whether performance changes interfere with forms, consent banners or analytics tags. Privacy obligations arise less from the speed tool itself than from the scripts it helps govern: where analytics, tracking pixels or form security are present, GDPR and ICO expectations around consent, retention and lawful basis still shape implementation. For public-sector or regulated clients, change control also matters, because a misplaced optimisation rule can break accessibility fixes, audit trails or customer-facing journeys.
Adoption appears likely to remain tied to the broader economics of website acquisition. Firms with lean internal teams tend to prefer plug-in or agency-managed optimisation, while larger web estates are more likely to fold performance work into content operations and front-end governance. Bundling may make some standalone tooling less visible over time, especially where hosting, content management and security vendors package optimisation features together. Even so, the cohort suggests a durable need for lightweight controls: marketing teams want faster pages without rebuilding sites, and developers want fewer ad hoc scripts slowing down customer journeys.
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 Perfmatters rises with company size across the trading companies in this cohort. 0% of the 532,485 companies with under 10 employees run Perfmatters (71 detected). 0.1% of the 15,364 companies with 10–50 employees run Perfmatters (23 detected). 0.1% of the 1,763 companies with over 50 employees run Perfmatters (2 detected). That is a 0.1% gap between the over 50 employees and under 10 employees bands.
96
Active firms
2026
9
Above £5M turnover
Trading firms
5
Median headcount
Filed accounts
258
Verified directors
Across this cohort
Top companies using Perfmatters 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 filingsOperates an online reservation platform for a network of independently owned boutique luxury hotels worldwide. Provides hotel booking services through its website and app, and manages a membership…
Serves affluent leisure travellers booking boutique luxury hotels worldwide, as well as travel agents and independent luxury hotels seeking access to its reservations and membership network.
Financial Health
HealthyHealthy · -69% CAGR over 4y
Location
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Operates an online marketplace for market research, connecting companies with survey respondents through a global panel network. Provides tools for sourcing sample audiences, collecting survey data,…
Serves B2B insights buyers including market researchers, brands, product teams, media agencies, ad-tech platforms, publishers and panel owners, plus academic researchers.
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Computed from 5 filingsDevelops and sells plant‑based nutrition products including vegan protein powders, meal replacement blends, protein bars and capsules. Operates an online store offering sports nutrition supplements…
Serves B2C health and fitness consumers, including vegans, plant-based eaters and people seeking protein, meal-replacement and wellness nutrition, with UK-focused online shoppers and international…
Financial Health
WeakWeak · 0% CAGR over 4y
Location
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Operates private hospitals and clinics providing medical consultations, diagnostics and imaging, surgical procedures, and health screening services. Offers specialties including cardiology,…
Serves self-paying and insured private patients, international patients, corporate employers seeking employee health screening, and healthcare professionals referring patients in London, Essex,…
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Computed from 5 filingsDevelops and operates a cloud-based platform for qualitative market research. Provides tools for conducting human-led and AI-assisted interviews, collecting self-paced participant feedback, uploading…
Serves B2B buyers at brands and agencies, including consumer insights, product/R&D, brand and marketing teams seeking feedback from target audiences for global market research.
Financial Health
WeakWeak · Hiring · 22% CAGR over 4y
Location
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Computed from 3 filingsProvides foreign exchange and international payment services for businesses, including multi-currency accounts, currency risk management, mass payments and an online platform. Also arranges business…
Serves B2B clients with international trade, foreign currency and funding needs, including firms making overseas payments, managing multi-currency accounts or seeking business finance.
Financial Health
StableStable · -8% CAGR over 2y
Location
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Provides a programmatic advertising supply‑side platform that enables publishers to sell digital ad inventory through real‑time auctions and private marketplaces. Offers ad exchange technology,…
Serves B2B digital advertising customers: online publishers, media owners, brands, agencies and marketers buying or selling programmatic open-web, CTV and omnichannel ad inventory.
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Computed from 5 filingsDevelops cloud software for third‑party, supplier and client management. Platform supports vendor onboarding, due diligence, cost and invoice management, workflow automation, performance monitoring,…
Targets regulated B2B organisations with teams responsible for supplier, vendor, counterparty and client relationship management, including network management, due diligence and operational…
Financial Health
StrongStrong · Hiring · 21% CAGR over 4y
Location
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Computed from 5 filingsPlans and arranges customised African safari holidays, providing travel consultancy, itinerary design, and booking of lodges, guided wildlife safaris, rail journeys and related tourism experiences…
Serves individual consumers and private travel groups seeking African safari holidays, including seasoned travellers, families, solo travellers, couples, romance seekers and groups of friends.
Financial Health
StrongStrong · -47% CAGR over 3y
Location
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Computed from 5 filingsDevelops cloud-based marketing analytics software for marketing mix modeling. Provides a platform that integrates marketing and sales data, builds statistical models, and generates insights and…
Serves B2B marketing effectiveness, analytics and finance leaders at brands and agencies, with emphasis on CPG, retail and financial services organisations seeking marketing measurement capability.
Financial Health
StableStable · Hiring · 25% CAGR over 5y
Location
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Computed from 5 filingsProvides residential property sales, lettings and management services. Lists properties for sale and rent, arranges valuations, and advises buyers, tenants and landlords. Also markets selected…
Serves residential tenants, landlords, buyers and vendors, including overseas investors and homebuyers from Hong Kong, China, Singapore, Malaysia, Taiwan, Thailand and the UAE seeking London and…
Financial Health
HealthyHealthy · Hiring · 5% CAGR over 4y
Location
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Computed from 5 filingsDevelops data analytics software that enables organisations to model, analyse and visualise data and embed interactive analytics into applications. Platform includes AI‑driven tools, dashboards, data…
Serves B2B software teams, product leaders, developers and data teams in financial services, healthcare/pharma, supply chain, technology and manufacturing, especially organisations embedding…
Financial Health
HealthyHealthy · Hiring · 3% CAGR over 5y
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Operates an online job board for arts and culture administration roles. Allows employers to post vacancies and search a paid database of candidate resumes, while job seekers can browse listings,…
Serves arts and culture organisations hiring administrative talent, alongside job seekers pursuing arts administration roles and candidates open to remote or relocation opportunities.
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Computed from 5 filingsProvides private preventative health assessments including full-body screening, MRI and CT imaging, cardiovascular and cancer checks, and medical tests. Services include personalised health…
Serves private individuals seeking preventative health screening, particularly adults concerned about cancer, heart disease, dementia or under-40 health, alongside employers arranging corporate…
Financial Health
HealthyHealthy · Hiring · 24% CAGR over 4y
Location
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Computed from 5 filingsSupplies branded merchandise and promotional products for businesses, including custom kits, corporate online merchandise stores, and campaigns linking physical products to digital experiences.…
Serves businesses and charities, especially marketing managers, HR directors, sales teams and fundraisers seeking branded merchandise programmes, online company stores, employee/customer gifting and…
Financial Health
StrongStrong · Profitable, Growing, Hiring · 9% CAGR over 4y
Location
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Computed from 5 filingsSells new and refurbished pianos including upright, grand, digital, and silent models from brands such as Yamaha, Kawai, Steinway, and Petrof. Also provides piano hire, moving, storage, tuning,…
Serves consumers and organisations across the UK, including home players, beginners, concert performers, music teachers, schools and education providers.
Financial Health
StableStable
Location
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Computed from 5 filingsBuilds and sells custom and pre‑configured desktop computers, including gaming PCs, mini PCs and workstation systems. Also retails computer components, peripherals, networking equipment, software and…
Serves UK consumers, gamers, home-office users and small businesses, plus creative professionals such as photographers, video editors, designers and music producers seeking PCs, workstations,…
Financial Health
StableStable · Hiring · 32% CAGR over 4y
Location
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Computed from 4 filingsProvides musculoskeletal diagnostics and orthopaedic care, including surgical and non-surgical treatment for joint, spine and sports injuries. Services include pain management, injection therapies,…
Serves private patients seeking orthopaedic and musculoskeletal care, including people with sports injuries, joint, spine, hand, foot and ankle conditions, drawing patients from London, nationally…
Financial Health
WeakWeak · 0% CAGR over 3y
Location
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Computed from 5 filingsDevelops an AI platform providing a collaborative workspace to interact with multiple language models and manage prompts and projects. Offers developer APIs for web scraping and search data for RAG…
Serves B2B customers worldwide, including developer teams, AI product builders, operations teams, and businesses using LLMs, web data, SEO, security, network and productivity workflows.
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
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Computed from 5 filingsOperates a digital and print media platform covering music, culture and fashion. Publishes artist interviews, playlists, features, galleries and event coverage, and produces editorial content…
Serves music and culture consumers interested in emerging artists, playlists, interviews, fashion and events, alongside brands and music-industry partners seeking access to youth culture audiences.
Financial Health
StrongStrong · Hiring · 57% CAGR over 4y
Location
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Computed from 5 filingsDevelops software platform that automates procurement, supplier management and field service workflows for infrastructure projects. Includes sourcing, contract management, work orders, workforce…
Serves large enterprises managing complex infrastructure supply chains, especially telecoms, network operations and IoT organisations, plus their procurement, operations, finance, field service teams…
Financial Health
StrongStrong · Hiring · 57% CAGR over 4y
Location
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Computed from 5 filingsProvides an organisational assessment framework and analytics tool that measures how individuals and teams contribute to business impact. Offers surveys, reports and platforms used by organisations…
Serves B2B organisations, HR and people leaders, leadership teams and consulting partners addressing talent, team performance, change programmes, diversity and inclusion, and organisational…
Financial Health
WeakWeak · -4% CAGR over 4y
Location
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Computed from 3 filingsPublishes online news coverage of professional boxing, including fight results, event previews, rankings, schedules, and opinion articles. Operates a website featuring ongoing match coverage,…
Serves consumers, mainly boxing fans and combat-sports followers, who follow professional boxing results, schedules, rankings, tickets, forums and fighter/promoter coverage online.
Financial Health
StableStable · Hiring · 61% CAGR over 2y
Location
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Computed from 5 filingsDevelops enterprise resource planning (ERP) software for food and consumer goods manufacturers. Provides tools for production management, inventory and warehouse control, traceability, purchasing,…
Serves growing B2B food and consumer goods manufacturers, including food and beverage processors, meat and seafood processors, abattoirs, commercial bakeries, dry blenders, nutraceutical and chemical…
Financial Health
StableStable
Location
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Computed from 2 filingsProvides chartered accountancy and business advisory services including audit, tax planning, corporate finance, restructuring and estate planning. Also offers outsourced finance functions such as…
Serves businesses and private clients in London, including entrepreneurial and owner-managed companies, high-net-worth individuals, landed estates, and sectors such as real estate, hospitality,…
Financial Health
StableStable · 0% CAGR over 0y
Location
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Computed from 3 filingsDevelops information management and workflow automation software. Provides a platform for digital mailroom processing, email ingestion and filing, document capture, archiving, print cost recovery,…
Sells to law firms, in-house legal departments and other enterprise organisations using document, records and practice management systems, with emphasis on top-tier UK law firms and international…
Financial Health
WeakWeak · -90% CAGR over 2y
Location
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Computed from 5 filingsProduces and sells herbs, spices, seasoning blends, teas, seeds, oils, honey, and other cooking ingredients through an online shop. Offers recipe ideas and culinary inspiration alongside ingredient…
Sells to home cooks and food enthusiasts buying herbs, spices, teas and cooking ingredients online. Also serves professional cooks, as the site explicitly mentions use by professionals alongside…
Financial Health
StrongStrong · Growing, Hiring · 4% CAGR over 4y
Location
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Develops healthcare software platforms for providers and health systems, including digital care records, patient portals, medication management and care coordination tools. Provides data integration,…
Sells to B2B and public-sector healthcare organisations, including hospitals, healthcare providers and health systems coordinating patient care across multiple settings, with resources aimed at…
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Computed from 3 filingsDevelops investment tax management software and provides related services for wealth management firms. Offers CGiX capital gains tax reporting software, excess reportable income data, tax consultancy…
Serves wealth management firms, private banks and investment platform providers, primarily in the UK, selling to operations, tax and advisory teams responsible for client investment tax reporting and…
Financial Health
WeakWeak · -7% CAGR over 2y
Location
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Computed from 4 filingsDevelops tax reporting software and provides related services for wealth management firms. Offers CGiX capital gains tax calculation and modelling tools, excess reportable income data on offshore…
Serves B2B financial services firms, especially UK wealth management firms, private banks and platform providers. Targets firms needing tax reporting support, including advisers and operations teams…
Financial Health
StrongStrong
Location
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Computed from 4 filingsProvides public relations and integrated marketing communications services for B2B technology and healthcare companies, including media relations, content marketing, branding, demand generation,…
Serves B2B technology and healthcare companies, including AI, cybersecurity, cloud/DevOps, commerce, HR tech, supply chain, life sciences, pharma/biotech, telehealth, payers and employer benefits.
Financial Health
WeakWeak · -6% CAGR over 3y
Location
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Computed from 3 filingsProvides outsourced customer contact services for automotive dealerships, including outbound and inbound call handling, live chat management, and one-off marketing campaigns. Focuses on contacting…
Serves UK automotive dealerships and dealer groups, particularly sales, service and marketing teams managing customer outreach, appointment volumes, campaign follow-up and live chat enquiries.
Financial Health
StableStable · -16% CAGR over 2y
Location
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Computed from 4 filingsProvides cyber security services including incident response, penetration testing, vulnerability assessments, managed security services, digital forensics, identity and access management, governance…
Serves UK enterprise and government organisations, including businesses of varying sizes in sectors such as wellness, information services and software development, and leaders responsible for cyber…
Financial Health
HealthyHealthy · 0% CAGR over 3y
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Computed from 5 filingsProvides telecommunications and IT services including VoIP and unified communications systems, cloud and hosted platforms, data connectivity, mobile and fixed-line services, managed IT support,…
Serves UK businesses and organisations, with dedicated customer segments in education, charities and museums, plus office-based teams managing communications, connectivity and IT procurement.
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides document legalisation services including UK apostille processing, consular legalisation, notary certification and certified translation. Assists individuals and businesses with preparing and…
Serves individuals, expatriates, legal professionals and businesses that need UK documents accepted overseas, including clients dealing with consulates for countries such as China, UAE, Qatar,…
Financial Health
StrongStrong · Hiring · 6% CAGR over 4y
Location
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Develops software platforms and provides advisory services for open banking and open finance ecosystems, including identity and regulatory validation, certificate chain management, and infrastructure…
Serves governments, regulators, banks, payment providers and fintech infrastructure teams involved in open finance, PSD2 and secure financial data-sharing ecosystems globally.
Financial Health
N/AN/A
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Computed from 5 filingsProcesses and toughens glass, supplying laminated and cut‑to‑size products for building and interior use, including balustrade panels, shower screens, kitchen splashbacks, mirrors, partitions,…
Serves UK homeowners, renovators, builders, glaziers and commercial fit-out contractors needing made-to-measure components for bathrooms, kitchens, balconies, partitions and other residential or…
Financial Health
StableStable · -69% CAGR over 4y
Location
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Computed from 3 filingsOperates physiotherapy clinics providing assessment and treatment for musculoskeletal injuries, including back, neck, knee and sports-related conditions. Offers rehabilitation programmes, sports…
Serves individual consumers in London, including office professionals, athletes and active people seeking private physiotherapy or sports massage for back, neck, knee and sports injuries, often using…
Financial Health
WeakWeak · Hiring · 38% CAGR over 2y
Location
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Computed from 5 filingsOperates a passenger boat offering private charter cruises for events including corporate functions, weddings, birthdays and club nights. Provides onboard bar services, catering menus and event…
Serves a mix of businesses and consumers planning Thames-based events, including corporate hospitality teams, wedding parties, birthday and celebration groups, Christmas parties, club night…
Financial Health
WeakWeak
Location
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Computed from 5 filingsProvides insurance broking and risk management services for commercial and private clients, arranging policies such as corporate, property and travel insurance, and assisting with claims handling and…
Targets commercial organisations with corporate insurance and risk management needs, as well as private clients and individuals buying personal cover for travel, homes, buildings and household…
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides cyber security consulting and technology services including firewall modernisation, cloud security, data loss prevention, and security automation. Also offers managed services and…
Serves businesses and organisations with complex technology, security, transformation and ESG requirements, including leaders responsible for IT, cyber security, operations, performance and social…
Financial Health
StrongStrong · Growing, Hiring · 17% CAGR over 5y
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Computed from 5 filingsProvides business telecommunications and IT services, including mobile contracts, cloud telephony, unified communications, and secure connectivity. Advises organisations on network management, hosted…
Serves businesses and corporate teams that need communications and IT suppliers, including organisations with mobile workforces, remote staff, or plans to scale or stabilise operations.
Financial Health
StrongStrong · Hiring · 9% CAGR over 4y
Location
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Computed from 3 filingsProvides public relations and marketing services for B2B technology companies, including communications strategy, PR campaigns, content creation, copywriting, design, video production, and email or…
Serves B2B technology companies, including SaaS, VFX and creative tech, telecoms, enterprise IT and media technology brands, typically marketing or leadership teams seeking PR and marketing support.
Financial Health
WeakWeak · -22% CAGR over 2y
Location
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Computed from 4 filingsProvides insurance brokerage and indemnity cover for healthcare and life sciences sectors, including dental practices, hospitals, veterinarians, opticians and doctors, offering policies such as…
Serves healthcare and life science customers, including dentists and dental practices, hospitals, vets, opticians, doctors, and commercial life science organisations seeking specialist insurance or…
Financial Health
StableStable · Hiring · 6% CAGR over 3y
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Provides discretionary investment management and model portfolio services as part of a financial planning group, alongside advice on retirement planning, tax planning, estate and succession planning,…
Serves a mix of UK consumers and businesses: individuals, families and business owners needing financial advice, and independent financial planning firms/advisers considering sale or group membership.
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Computed from 3 filingsProvides van and commercial vehicle hire and sales. Operates a fleet including short and long wheelbase vans, tippers, dropsides, trucks, and electric vans, offering flexible rental options for…
Serves businesses needing commercial vehicles, including construction firms, courier and delivery operators, catering companies and chilled transport users seeking flexible van or truck hire.
Financial Health
StrongStrong · Growing, Hiring · 51% CAGR over 2y
Location
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Computed from 3 filingsDevelops and supplies LocataPro, a software platform for managing social housing services, including housing registers, allocations, case management and reporting. Also provides training, consultancy…
Serves UK local authorities and registered social housing providers, targeting housing teams and managers responsible for social housing services, compliance and resident casework.
Financial Health
HealthyHealthy · 4% CAGR over 2y
Location
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Computed from 5 filingsProvides creative marketing services for entertainment and media clients, including marketing strategy, branded content production, campaign development, and experiential activations. Works with film…
Serves B2B entertainment clients, including global studios, streaming platforms, networks, and media or technology companies such as Netflix, Disney, YouTube and HBO Max.
Financial Health
HealthyHealthy · Hiring · 9% CAGR over 4y
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Computed from 4 filingsSupplies building materials and construction supplies including bricks, timber, insulation, roofing products, plasterboard, plumbing and electrical items. Offers trade counter sales, timber and sheet…
Serves tradespeople, builders, contractors and DIY customers needing building materials in Harrow and North West London, including those working on local construction, repair and home improvement…
Financial Health
StrongStrong · Growing · 0% CAGR over 3y
Location
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Computed from 5 filingsProvides legal services to individuals including family law and divorce, child and care proceedings, actions against police and public bodies, mental health law, Court of Protection matters, and…
Serves private individuals and families across London and the UK, including mental health patients, people involved in family or care proceedings, victims of police or public body misconduct, and…
Financial Health
StableStable · -67% CAGR over 4y
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Key facts
About 9% of the trading cohort reports turnover above £5M (9 of 96 firms) — the rest sits below that revenue band.
6% of the cohort was incorporated since 2022 (6 firms), so a sizeable share is in its first few filing cycles.
100.0% of the cohort also runs a content-management platform, so the web speed tool appears to sit within site stacks where templates and plugins are actively managed.
62.5% also use a traffic-routing and security layer, suggesting page-speed work is often paired with caching, DNS and perimeter controls.
Analytics and tag-management tools are frequent co-occurrences: 54.2% run a web analytics package and 49.0% run tag-management tooling.
Service sectors are prominent among tagged users, with Accounting & Audit at 11.5%, Construction at 10.4% and Management Consulting at 9.4%.
258 verified directors are associated with London companies running the web speed tool.
What else do Perfmatters users run?
Share of the 96 Perfmatters-running UK companies where each technology was also detected. As of June 2026.
Who runs Perfmatters 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
£594.6K
Median UK turnover
9.4%
Above £5M turnover
6
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 166 companies, alongside financials and websites, in one Excel + CSV file.
How Perfmatters 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.
Perfmatters is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
Perfmatters elsewhere
Frequently asked questions
How many companies in London use Perfmatters?
How is Perfmatters usage detected?
What kinds of companies use Perfmatters in London?
What do Perfmatters users in London also run?
How fresh is this data?
Can I get contact details for these companies?
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