Companies Using NitroPack in London: 156 Active Firms (2026)
London companies running website performance technology use caching and optimisation tools to speed public sites across the capital.
Buying responsibility usually sits between ecommerce, marketing operations, web engineering and agency partners, rather than a single IT owner. Companies running this optimisation stack tend to depend on public web journeys for sales, enquiries, bookings or content engagement, so adoption signals a site where speed has moved from hygiene factor to commercial metric. The buyer profile spans field-services, SaaS, education, construction and property operators, usually with small specialist teams and a narrower mid-market layer that can justify monitoring, consent management and conversion testing around the same website estate. Engagements are typically operational purchases, not board-level platform programmes.
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London has 156 actively trading companies running this performance stack, a small but visible adoption cohort rather than a broad software category. Reported employment across the group totals 2,084 people, pointing to a user base weighted towards owner-managed and specialist teams, with some larger mid-market operators. Only 9 have turnover above £5M, so the footprint is not confined to enterprise web estates. The sector mix tilts towards field services and trades, SaaS, education and training, construction, and real estate and property, all areas where enquiry capture, bookings or application journeys can make page-speed work commercially visible.
Public-site operators using caching, performance, analytics or optimisation tools usually meet horizontal privacy rules rather than a sector licence. PECR governs storage or access on a user’s device, while the Data Protection Act 2018 and UK GDPR become relevant when cookie or device data can be linked to a person. ICO guidance expects clear explanations of what the technology does and actively given consent unless the storage is strictly necessary for a service requested by the user. Load-balancing and strictly necessary performance cookies tend to sit in a different category from analytics, advertising and personalisation tags.
Adoption appears tied less to experimentation than to upkeep of revenue-bearing websites. Smaller firms tend to adopt performance tooling when site builds become slower under tag growth, visual content and plug-ins; larger operators are more likely to fold it into web operations, consent management and monitoring routines. The cohort looks early-commercial rather than enterprise-heavy, so churn between hosted site platforms, agencies and optimisation tools is likely. Bundling by hosting, security and analytics vendors may also reduce stand-alone visibility, while privacy scrutiny keeps pressure on how performance tools interact with tracking and consent.
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 NitroPack rises with company size across the trading companies in this cohort. 0% of the 532,485 companies with under 10 employees run NitroPack (105 detected). 0.3% of the 15,364 companies with 10–50 employees run NitroPack (53 detected). 0.2% of the 1,763 companies with over 50 employees run NitroPack (4 detected). That is a 0.2% gap between the over 50 employees and under 10 employees bands.
156
Active firms
2026
9
Above £5M turnover
Trading firms
6
Median headcount
Filed accounts
316
Verified directors
Across this cohort
Top companies using NitroPack in London
Ranked by sales-readiness score: an AI model assesses what each company does, its sector and size, and scores its overall fit. Best-fit prospects appear first.
Financial sub-scores
Computed from 4 filingsProvides a data platform for digital marketers and advertisers to collect, connect and manage customer data, build and enrich audience segments, resolve identities across devices, and activate…
Serves B2B digital marketers, advertising agencies, brands, and media/data owners needing audience data, identity, targeting, data collaboration, and monetisation across adtech, CTV, social, and…
Financial Health
HealthyHealthy · 0% CAGR over 3y
Location
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Computed from 5 filingsProvides B2B data products including intent data, identity resolution, audience segmentation and campaign measurement. Aggregates data from a network of publishers and data providers to help…
Serves B2B sales, marketing and advertising teams, agencies, publishers and data/technology partners running account-based marketing, digital campaigns and campaign measurement.
Financial Health
StableStable · Hiring · 5% CAGR over 5y
Location
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Computed from 3 filingsProvides payment technology that enables merchants to offer instalment payments using customers’ existing credit cards. Authorises the full purchase amount and charges monthly instalments, allowing…
Serves online shoppers with existing credit cards and merchants or ecommerce businesses that want to offer card-based buy-now-pay-later options at checkout.
Financial Health
StableStable · -23% CAGR over 2y
Location
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Computed from 4 filingsDevelops and provides SaaS software for identity verification, KYC/KYB onboarding, AML screening, transaction monitoring, and age verification. Platform uses biometric checks, document verification…
Serves regulated B2B and digital consumer platforms worldwide, including financial services, telecoms, age-restricted content providers, and other companies needing compliant remote customer or…
Financial Health
StableStable · Hiring · 44% CAGR over 3y
Location
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Computed from 3 filingsOperates a subscription-based online learning platform providing video classes, live workshops, and guided projects in photography, lighting, 3D CGI, and visual arts. Offers structured courses,…
Serves aspiring and professional photographers, visual artists, CGI artists and art learners, plus education or training organisations needing multi-user access to creative skills courses.
Financial Health
StrongStrong
Location
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Computed from 5 filingsProvides fertility assessments and reproductive medicine services, including IVF, ICSI and IUI treatments. Offers egg, sperm and embryo freezing, donor egg and sperm programmes, hormone testing,…
Serves private patients: women, couples and individuals facing infertility, recurrent miscarriage or fertility preservation needs, primarily in London and via video consultations.
Financial Health
HealthyHealthy · Growing, Hiring · 32% CAGR over 4y
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Computed from 5 filingsProvides a mobile app that converts deposited pounds into allocated physical gold stored in secure vaults. Users can hold gold‑denominated balances, transfer funds, spend via a debit Mastercard, and…
Targets retail consumers, depositors and savers who want an alternative to bank cash balances, with app-based access to savings and payments via a debit card.
Financial Health
StrongStrong · Hiring · 23% CAGR over 5y
Location
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Computed from 5 filingsSells original 20th‑century vintage furniture, lighting and decorative accessories through an online shop. Product range includes dining chairs, tables, storage, rugs, posters and lighting. Also…
Serves UK private buyers, interior designers, hospitality venues, retailers and other trade/commercial clients seeking vintage and contemporary furniture, lighting, accessories, hire and project…
Financial Health
StableStable · Hiring · 57% CAGR over 4y
Location
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Computed from 2 filingsProvides sports data, statistics, and odds for betting operators, media companies, and sports organisations. Develops software platforms, APIs, live streaming, and analytics tools, and delivers…
Serves B2B customers including betting and gaming operators, media and technology companies, sports teams, leagues and federations, plus integrity and regulatory bodies in the sports sector.
Financial Health
StrongStrong · Profitable, Growing, Hiring · 22% CAGR over 1y
Location
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Computed from 5 filingsProvides online primary, secondary and sixth form education based on the British curriculum, delivering timetabled live lessons via a virtual classroom. Offers enrolment, exams, student support,…
Serves families and students aged 5–19 worldwide seeking online British curriculum education across primary, secondary and sixth form levels, with parents involved in admissions and learning support.
Financial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
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Computed from 4 filingsDevelops cloud-based recruitment software including applicant tracking, CRM, recruitment marketing and analytics tools. Platform posts jobs to boards, manages candidate pipelines, matches candidates…
Serves UK recruitment and staffing agencies, plus in-house HR and talent acquisition teams across sectors, including recruiters responsible for candidate pipelines, client accounts and hiring…
Financial Health
StrongStrong · Growing · 1% CAGR over 3y
Location
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Computed from 4 filingsProvides private gynaecology services including consultations, pregnancy scans, fertility assessment, menopause care, and treatment for conditions such as abnormal bleeding or smears. Also offers…
Serves private female patients seeking gynaecology, pregnancy, fertility, sexual health and abortion care, primarily in London, with remote consultations and medical abortion pills by post for…
Financial Health
StableStable · Hiring · 5% CAGR over 3y
Location
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Computed from 3 filingsOperates an interactive museum featuring optical illusions and perception-based exhibits that combine art and science. Provides hands-on installations, educational displays, school visits, private…
Serves consumers seeking days out in London, especially families, children, couples and social media-focused visitors, plus schools booking trips and organisations arranging private events.
Financial Health
StableStable · Hiring · 21% CAGR over 2y
Location
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Computed from 3 filingsOperates an online B2B platform for the fresh produce industry that connects growers, importers, wholesalers and retailers. Enables businesses to find trading partners, communicate, share supply and…
Serves B2B fresh produce supply chain businesses, including fruit and vegetable growers, importers, wholesalers and retailers seeking trading partners, suppliers and buyers.
Financial Health
StableStable · 4% CAGR over 2y
Location
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Provides animal welfare services including shelter, specialist care and rehoming for dogs, cats and small animals. Offers pet owner advice, training courses and events, supports fostering and…
Serves pet owners, prospective adopters and people needing to rehome dogs, cats or small animals, alongside schools, families, volunteers, donors, trusts and corporate partners supporting animal…
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Computed from 3 filingsDevelops AI-based contract lifecycle management software that centralizes contract documents, extracts and structures data, supports drafting and negotiation workflows, and provides search,…
Serves enterprise legal, legal operations, procurement, sales and finance teams, with sector focus on financial services, insurance, automotive, IT services, healthcare, pharma, telecom, and oil and…
Financial Health
StableStable · Hiring · 24% CAGR over 2y
Location
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Computed from 5 filingsProvides a mobile app and debit card enabling users to buy, hold and spend a digital currency backed by physical gold. Converts deposits into vaulted gold and supports payments, transfers and ATM…
Serves individual consumers and savers who want an alternative to bank deposits, including people seeking protection from currency devaluation and worldwide access to their funds.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
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Provides flexible workspace solutions including serviced offices, coworking desks, managed office suites, meeting rooms and virtual office services. Offers fully managed office space with IT,…
Serves B2B customers from start-ups to larger businesses needing 1–1000 desks, meeting rooms or virtual office addresses, with locations in London, other UK cities and Dublin.
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Provides AI-powered platform aggregating financial research content including earnings call transcripts, broker research, news, filings and events; offers dashboards, APIs and tools that analyse and…
Targets B2B financial services customers, including investment teams, major banks, research and content providers, and firms building internal research systems or client applications around global…
Financial Health
N/AN/A
Location
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Provides residential estate agency services including property sales, lettings, tenant sourcing, property management and valuations. Markets homes, manages landlord portfolios, and assists buyers,…
Serves private residential property sellers, landlords, buyers and tenants in London, including Soho, Bloomsbury, Dulwich and Herne Hill, plus owners of residential portfolios.
Financial Health
N/AN/A
Location
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Provides serviced offices, coworking space, managed workspaces and virtual office services. Also offers meeting rooms and business amenities, with flexible office space for startups and larger teams,…
Serves businesses of all sizes, from start-ups to organisations needing 1–1000 desks, including teams seeking serviced, managed, virtual or meeting space across London, UK and Ireland locations.
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Provides cross‑border payment and foreign exchange services for businesses and institutions. Offers a platform to send and receive international payments, hold multiple currencies, and manage…
Serves small, mid-market and large businesses, educational institutions collecting international student fees, banks and financial institutions, and institutional investment funds with cross-border…
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Computed from 5 filingsProvides cosmetic and medical aesthetic treatments, including dermal fillers, anti‑wrinkle injections, laser therapies, skin treatments, hair and eyebrow transplants, body contouring procedures, and…
Serves private consumers and patients, both women and men, seeking cosmetic, aesthetic, non-surgical and surgical treatments, injectables, hair transplants, body contouring and GP consultations in…
Financial Health
StrongStrong · -3% CAGR over 4y
Location
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Computed from 5 filingsProvides website design and development, branding, and digital marketing services. Works with businesses to create websites, visual identities, online marketing campaigns, and related digital and…
Serves small businesses, professional services firms, clinics, creative professionals and consumer-facing brands, with an emphasis on clients in Balham and South London.
Financial Health
StrongStrong · Growing, Hiring · 22% CAGR over 4y
Location
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Computed from 5 filingsProvides e‑commerce fulfilment and third‑party logistics services, including warehousing, order processing, picking, packing and shipping for online retailers and marketplaces. Offers order…
Serves eCommerce and multichannel retail brands selling through online stores and marketplaces, including cosmetics, pet supplies, electronics, toys, fashion, stationery, food and drink, supplements,…
Financial Health
WeakWeak · -25% CAGR over 4y
Location
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Computed from 5 filingsProvides search engine optimisation services for businesses, including keyword research, on‑page optimisation, link building, local and ecommerce SEO, and conversion rate optimisation. Also offers…
Sells to businesses seeking SEO support, especially service-based companies. Serves SMEs, larger brands and enterprise clients, with dedicated offerings for accountants, cleaning firms, construction…
Financial Health
StrongStrong · -3% CAGR over 4y
Location
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Computed from 5 filingsOwns and operates the Legal Geek brand, organising legal technology conferences, events and workshops, and providing resources such as startup directories, mentorship programmes and industry news for…
Serves legal technology and legal innovation professionals, including law firms, in-house legal teams, legal tech startups, sponsors and event attendees in Europe and North America.
Financial Health
HealthyHealthy · -61% CAGR over 4y
Location
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Computed from 5 filingsProvides affiliate and partnership marketing management for brands, including affiliate programme strategy, partner recruitment, publisher development, influencer campaigns, and performance tracking…
Targets marketing and growth leaders at established consumer and B2B brands, including Fortune 500 companies, across retail, ecommerce and other industries investing in affiliate, influencer and…
Financial Health
HealthyHealthy · Hiring · 26% CAGR over 5y
Location
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Computed from 5 filingsProvides digital agency services including branding, UX and web design, custom software and mobile app development, e‑commerce platform implementation, AI/ML solutions, and digital marketing such as…
Serves B2B organisations including ecommerce retailers, enterprises, and marketing or IT teams needing digital platforms, software, AI, and campaign support.
Financial Health
StrongStrong · Growing, Hiring · 22% CAGR over 4y
Location
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Computed from 5 filingsPublishes and sells 11+ entrance exam preparation materials, including practice papers for maths, English, verbal and non‑verbal reasoning. Offers downloadable PDFs and printed papers, free sample…
Serves UK parents and carers of primary-age pupils preparing for 7+, 8+, 10+ and 11+ grammar and independent school entrance exams, including area- and school-specific pathways.
Financial Health
StrongStrong
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Computed from 3 filingsProvides brokerage services for property finance, arranging bridging loans, development finance, auction finance, buy-to-let, commercial and residential mortgages, and second-charge loans. Offers an…
Serves UK property developers, investors, landlords and homeowners, plus businesses needing commercial finance and property professionals sourcing auction, refurbishment or development deals.
Financial Health
HealthyHealthy · Hiring · 14% CAGR over 2y
Location
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Computed from 2 filingsDevelops enterprise resilience and risk management software that helps organisations plan for and respond to disruptions. Platform supports business continuity, IT disaster recovery, crisis and…
Sells to enterprise organisations, especially financial services firms, technology service providers and manufacturers, targeting risk, operational resilience, business continuity and IT disaster…
Financial Health
StableStable · Hiring · 19% CAGR over 1y
Location
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Computed from 5 filingsProvides residential estate agency services including property sales, lettings and property management. Markets apartments and houses, advises landlords and sellers, and offers residential…
Serves residential property buyers, tenants, sellers and landlords in London’s West End and nearby neighbourhoods, including Covent Garden, Soho, Bloomsbury, Bankside and King’s Cross.
Financial Health
StableStable · Hiring · 3% CAGR over 4y
Location
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Computed from 5 filingsProvides digital marketing services including pay‑per‑click advertising management, search engine optimisation, social media marketing, content creation, website design and development, email…
Serves UK businesses, especially small and medium-sized companies and fast-growing firms seeking lead generation. Targets buyers wanting digital marketing support, including local and national…
Financial Health
WeakWeak · Hiring · 19% CAGR over 4y
Location
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Computed from 5 filingsProvides digital marketing services including search engine optimisation, Google Ads management, paid and organic social media marketing, and remarketing campaigns. Also offers website design and…
Serves small and medium-sized businesses seeking more customers through online visibility, including local service providers and ecommerce businesses needing outsourced digital marketing support.
Financial Health
WeakWeak · -4% CAGR over 4y
Location
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Provides ophthalmic treatments including laser eye surgery and lens-based procedures. Services include LASIK, SMILE, PRESBYOND laser blended vision, cataract surgery, clear lens exchange, and…
Serves private self-paying patients seeking vision correction in London, including adults with short or long sight, astigmatism, presbyopia, cataracts or higher prescriptions.
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Computed from 5 filingsProvides residential estate agency services including property sales, lettings, valuations, marketing and management for landlords and tenants, with property search listings and advisory support for…
Serves residential property sellers, landlords, buyers and tenants in London, with emphasis on Soho, Bloomsbury, Dulwich and Herne Hill, including apartment owners, portfolio landlords and people…
Financial Health
WeakWeak · -1% CAGR over 4y
Location
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Provides sports data feeds, live streaming, and betting-related content for sportsbooks and betting operators. Manages sports media rights and distributes official data, audiovisual streams, and…
Serves B2B customers in sports, media and betting: betting and gaming operators, broadcasters and technology/media companies, sports teams, leagues and federations, plus regulators and integrity…
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Computed from 5 filingsSupplies commercial espresso machines, superautomatic coffee machines, grinders and spare parts. Provides coffee beans and roasting services, and offers installation, maintenance, repair, and short‑…
Serves London-based cafés, restaurants, offices and hospitality businesses using commercial coffee equipment, plus retail buyers purchasing coffee beans, grinders, machines and spare parts online.
Financial Health
WeakWeak · -13% CAGR over 4y
Location
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Computed from 4 filingsProvides airport baggage services including home luggage collection, airport check‑in, and delivery to flight destinations. Handles suitcases, sports equipment, and oversized items, allowing airline…
Serves consumers and business travellers flying from Greater London, Switzerland, Frankfurt and eastern Austria, including families, passengers with accessibility needs, sports travellers and people…
Financial Health
WeakWeak · -1% CAGR over 3y
Location
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Computed from 5 filingsDevelops customer data management software, including a customer data platform that performs data ingestion, automated data quality, identity resolution and profile unification, enabling…
Serves enterprise data, IT, marketing and advertising teams in healthcare, pharmaceuticals, financial services, retail, travel and hospitality, and media and entertainment companies.
Financial Health
WeakWeak · Hiring · 4% CAGR over 4y
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Computed from 3 filingsProvides client relationship management and account servicing for users of an alternative investment technology platform, acting as a UK point of contact for client inquiries, support requests, and…
Serves B2B financial services clients, including wealth managers, asset managers, financial advisors, banks and institutions involved in private markets, alternatives, structured investments and…
Financial Health
StrongStrong
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Computed from 3 filingsProvides serviced apartments for short and extended stays, offering fully furnished units with living, dining and sleeping areas. Handles booking, guest support and housekeeping for business…
Serves business and leisure travellers, corporate travel buyers, relocation clients and accommodation agents arranging short or extended stays in the UK, Spain and Portugal.
Financial Health
StableStable · -7% CAGR over 2y
Location
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Develops and provides software platforms and digital tools for financial services firms, including wealth management systems, pensions administration software, transfer agency technology, portfolio…
Serves B2B financial services firms worldwide, including asset servicers, transfer agents, custodians, investment and wealth managers, fund distributors, pension providers, life insurers and…
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Computed from 5 filingsDevelops Microsoft Dynamics 365–based management software for holiday parks, marinas, boat brokers, and manufacturers. Provides systems for bookings and reservations, sales and leads, finance,…
Sells to B2B operators in the holiday park and marina sectors, including holiday parks, park home dealerships, holiday home manufacturers, marinas, boat/yacht brokers and boat builders.
Financial Health
StrongStrong · Growing, Hiring · 30% CAGR over 4y
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Computed from 4 filingsProvides private aviation charter services including private jet hire, helicopter charter and air taxi flights. Arranges on‑demand passenger flights, group charters and air cargo using a fleet of…
Serves high-net-worth private travellers, corporate clients, groups, event attendees and customers arranging helicopter transfers, property viewings, pet travel or air cargo.
Financial Health
StrongStrong · Hiring · 5% CAGR over 3y
Location
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Computed from 5 filingsProvides workplace visitor and contractor management software that digitizes check‑in, ID capture, badge printing, inductions, and compliance forms. The platform manages supplier credentials, site…
Serves businesses and organisations with physical workplaces or worksites, including facilities, reception, safety, security and compliance teams managing visitors, contractors, suppliers and…
Financial Health
StrongStrong
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Computed from 5 filingsProvides an embedded integration platform for SaaS applications, offering API connectors, a low‑code workflow builder and multi‑tenant infrastructure to orchestrate data between SaaS systems, APIs…
Serves B2B SaaS vendors, AI software companies and service providers, particularly product and engineering teams managing multi-tenant platforms and customer-facing integrations.
Financial Health
StrongStrong · Hiring · 9% CAGR over 4y
Location
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Computed from 5 filingsProvides a direct property buying service, purchasing residential properties for cash to enable fast house sales. Gives indicative and formal offers after valuation, buys homes in any condition, and…
Serves UK residential property owners, including homeowners and landlords in England and Wales, who want a fast, guaranteed house sale outside the traditional estate agent market.
Financial Health
StrongStrong
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Computed from 5 filingsDevelops digital security software and services to protect video content, applications, and connected devices. Provides DRM systems, anti‑piracy monitoring, forensic watermarking, and mobile app…
Serves B2B customers in media, entertainment and digital services, including OTT streaming platforms, pay TV operators, live sports and esports providers, content owners, and product, engineering and…
Financial Health
StableStable · -8% CAGR over 4y
Location
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Key facts
About 5% of the trading cohort reports turnover above £5M (9 of 156 firms) — the rest sits below that revenue band.
5% of the cohort was incorporated since 2022 (9 firms), so a sizeable share is in its first few filing cycles.
All detected sites pair the caching layer with a content-management platform; 90.4% (141) also show tag-management tooling.
Analytics tags appear on 59.6% (93) of the London cohort, while content-delivery and security tooling appears on 57.7% (90).
Sector tags overlap, but Field Services & Trades 14.7% (23), SaaS 14.1% (22) and Education & Training 11.5% (18) form the largest visible groups.
PECR, the Data Protection Act 2018 and UK GDPR set the compliance perimeter for caching, analytics and optimisation tags, with ICO guidance requiring actively given consent unless storage is strictly necessary.
ONS reported online spending values up 1.5% in December 2024, with online retail rising from 26.5% of sales in November 2024 to 27.0% in December 2024.
What else do NitroPack users run?
Share of the 156 NitroPack-running UK companies where each technology was also detected. As of June 2026.
Who runs NitroPack in the UK?
By sector
Sectors overlap, so shares need not sum to 100%.
By financial health
From filed accounts; firms with fewer than two filings show as insufficient history.
6
Median headcount
£511.9K
Median UK turnover
5.8%
Above £5M turnover
9
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 272 companies, alongside financials and websites, in one Excel + CSV file.
How NitroPack 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.
NitroPack is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
NitroPack elsewhere
Frequently asked questions
How many companies in London use NitroPack?
How is NitroPack usage detected?
What kinds of companies use NitroPack in London?
What do NitroPack users in London also run?
How fresh is this data?
Can I get contact details for these companies?
Buy all 272 companies as a spreadsheet.
One Excel/CSV file with company details, websites and key data — yours to download and use.