B2B Companies Using One.com in the UK: 231 Active Firms (2026)
B2B companies in the UK sell products or services to other organisations and operate public websites on third-party hosting infrastructure.
For business-to-business adopters, this hosted web stack provides the web presence layer: domain administration, site hosting and the basic environment used for service pages, case-study libraries, quote forms, job adverts and local-office content. Choosing an outsourced host tends to signal a lean web team, modest change-control requirements and a preference for predictable supplier administration over internal infrastructure. The buying centre is often split between the owner-manager or commercial director, a retained web agency and whichever operations team owns enquiries. Engagements are typically low-touch, with periodic design, search and compliance work layered on top of hosting rather than a large platform programme.
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UK adoption among business-to-business firms is a narrow slice of the hosting market: 231 actively trading companies in this cohort run the stack. Reported employment totals 2,373 people, and the typical adopter looks closer to an owner-managed service or trade supplier than a large enterprise platform buyer. Within detected hosting for the wider business-to-business sector, this stack accounts for 1.4%, placing it ninth in the category ranking. London contributes 26.4% of adopters, followed by the North West at 13.4%, the West Midlands at 10.0%, the East of England at 9.1%, and Yorkshire and The Humber at 8.7%.
Business website operators sit in a mixed regulatory position because the underlying trade, not the hosting choice, determines most sector rules. The common thread is data handling. The ICO treats business-contact records as personal data where an identifiable person is involved, so UK GDPR applies to sales and account-management processing. PECR is narrower for corporate subscribers: business emails or texts to corporate bodies do not require PECR consent, but the sender must identify itself and provide a valid opt-out route. Live marketing calls need screening against the corporate and individual telephone preference registers, and objections must be honoured.
Adoption appears likely to remain tied to smaller commercial teams that want a managed public website without treating the site as core infrastructure. The cohort’s overlap with content-management, page-builder, analytics, form and consent tooling points to agency-maintained sites rather than internally engineered platforms. Churn may come from competing pressures: firms outgrowing basic hosting as their web channel becomes more transactional, and consolidation by agencies that standardise clients onto fewer stacks. For many trade, construction and distribution suppliers, though, the practical threshold is lower: stable uptime, editable content and compliant enquiry capture tend to matter more than deeper platform migration work.
Adoption by company size
Adoption of One.com varies by company size across the trading UK B2B companies in this cohort. 0.2% of the 76,784 companies with under 10 employees run One.com (154 detected). 0.2% of the 31,788 companies with 10–50 employees run One.com (71 detected). 0.2% of the 3,773 companies with over 50 employees run One.com (7 detected).
231
Active firms
2026
1.4%
Of detected Hosting share
UK B2B
7
Median headcount
Filed accounts
413
Verified contacts
Across this cohort
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Key facts
About 3% of the trading cohort reports turnover above £5M (7 of 231 firms) — the rest sits below that revenue band.
4% of the cohort was incorporated since 2022 (10 firms), so a sizeable share is in its first few filing cycles.
Among B2B suppliers with a detectable hosting system, this provider accounts for 1.4% (231 of 16,982), while the largest detected provider accounts for 33.8% (5,743).
London is the largest registered-region cluster for B2B suppliers running this hosting provider at 26.4% (61), followed by the North West at 13.4% (31).
Website stacks in this cohort skew toward content-managed sites: 49.8% (115) also run a publishing system and 22.5% (52) also run a page-builder tool.
Field Services & Trades and Construction are the largest overlapping sector tags within the cohort, at 21.2% (49) and 18.2% (42).
B2B marketing remains activity-specific in the UK: PECR covers calls, electronic mail and fax, while UK GDPR still applies where business-contact data is processed.
Hosting & PaaS market share among UK B2B
Share of the 16,982 UK B2B with a detectable system. As of June 2026.
What else do One.com-running B2B run?
Share of the 231 One.com-running UK companies where each technology was also detected. As of June 2026.
Where One.com B2B are, and how healthy they look
By region
By registered-office region; companies without a regional match count toward Rest of UK.
By financial health
From filed accounts; firms with fewer than two filings show as insufficient history.
7
Median headcount
£517.8K
Median UK turnover
3%
Above £5M turnover
10
Incorporated since 2022
413 verified decision-maker contacts
across these 231 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK B2B using One.com
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 filingsDevelops supply chain software for pharmaceutical companies that aggregates operational data from contract manufacturers, logistics providers, and suppliers, providing real‑time visibility, batch…
Sells to B2B pharmaceutical companies that outsource manufacturing and distribution, targeting supply chain, planning, procurement and external manufacturing teams managing CMOs, 3PLs and other…
Financial Health
StrongStrong · Growing, Hiring · 12% CAGR over 4y
Location
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Financial sub-scores
Computed from 4 filingsProvides market research services including audience recruitment, survey and research design, and quantitative data analysis. Delivers consumer and B2B insights from large-scale surveys to support…
Serves B2B brands, consumer-facing companies, PR and marketing agencies, and charities, targeting marketing leaders, consultants and research teams across sectors such as hospitality, events,…
Financial Health
StrongStrong · Growing, Hiring · 44% CAGR over 3y
Location
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Computed from 5 filingsProvides software development services including web and mobile application development, API implementation, database development, and software quality assurance testing. Develops AI, cloud, and…
Serves B2B clients across industries, particularly businesses looking to digitise operations, scale technology capabilities, or support web, mobile, AI, cloud and IoT initiatives.
Financial Health
StrongStrong · Hiring · 46% CAGR over 4y
Location
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Computed from 5 filingsProvides industrial automation and engineering services including bespoke machine builds, control system software, machine retrofits, electronic and electromechanical repairs, condition monitoring,…
Serves B2B industrial, utility and commercial organisations using automation, control, energy and computerised process systems, including FMCG, food and beverage, automotive, pharmaceutical, life…
Financial Health
StrongStrong · Hiring · 29% CAGR over 4y
Location
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Computed from 5 filingsProvides commercial relocation and workplace change services, including office moves, furniture delivery and installation, IT and server relocation, project and move management, storage, recycling,…
Serves businesses, office occupiers, public corporations and workplace-change specialists needing commercial relocation and furniture installation support, from small offices to multinational…
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
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Computed from 3 filingsManufactures bespoke hydraulic cylinders for industrial applications, including single-acting, double-acting, telescopic and through-rod cylinders. Also produces hand pumps and cylinder accessories,…
Sells to B2B industrial and engineering customers needing bespoke hydraulic cylinder supply, from one-off project buyers to organisations placing repeat high-quantity call-off orders.
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
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Computed from 5 filingsProvides recruitment and business consulting services, sourcing candidates and supporting clients with staffing needs. Also delivers project-based consultancy through assembled specialist teams under…
Serves both businesses and job candidates, selling recruitment, resourcing and consulting services to client organisations needing project teams, change delivery support and compliant hiring across…
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides EPOS (electronic point of sale) till systems and software for retail, hospitality and takeaway businesses. Offers features such as stock control, barcode generation, reporting, online…
Sells to UK businesses in retail, hospitality and leisure, including shops, takeaways, cafés, restaurants, salons, attractions, convenience stores, pharmacies, pubs and service-based venues.
Financial Health
StableStable · -8% CAGR over 4y
Location
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Computed from 5 filingsDevelops cloud-based software and analytics solutions, including medical asset management ERP systems for tracking, sales and repair of equipment. Provides cloud services, data analytics, and digital…
Serves B2B clients with business and safety-critical software needs, particularly healthcare organisations and supply-chain businesses managing medical assets, repairs and equipment maintenance.
Financial Health
StrongStrong · Hiring · 50% CAGR over 4y
Location
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Computed from 5 filingsProvides software development and technology consultancy services building AI-powered applications, data dashboards, and web and mobile platforms. Also supplies remote developers and engineering…
Targets B2B technology leaders at startups, enterprises and other organisations with software product, data/analytics or engineering needs, especially teams extending capacity with UK-based or…
Financial Health
StrongStrong
Location
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Computed from 5 filingsProvides satellite and wireless connectivity solutions for businesses, including Starlink and OneWeb services. Designs, installs and manages internet and network infrastructure such as maritime…
Serves businesses and infrastructure operators needing connectivity for remote or mobile sites, including construction, energy, healthcare, manufacturing, mining, retail, maritime/offshore, media,…
Financial Health
StrongStrong · Growing, Hiring · 51% CAGR over 4y
Location
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Computed from 5 filingsProvides consultancy and resourcing services to public and private sector organisations, supplying specialists in areas including commercial and procurement, finance, and project and programme…
Serves public- and private-sector organisations needing consultancy or resourcing support, particularly teams responsible for commercial and procurement, finance, and project or programme management.
Financial Health
StrongStrong · Growing, Hiring · 26% CAGR over 4y
Location
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Computed from 4 filingsProvides IT consulting and software development services, designing and building secure, scalable digital solutions for businesses, including application development, systems integration, technology…
Serves businesses and organisations across the UK that need tailored IT and digital technology support, across unspecified sectors.
Financial Health
StrongStrong · Hiring · 91% CAGR over 3y
Location
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Computed from 5 filingsProvides IT consultancy and software engineering services, including bespoke application development, cloud transformation on AWS, system architecture design, security‑focused development, and…
Serves businesses needing software engineering support, including organisations with cloud, AWS, cyber resilience, system architecture and agile delivery requirements.
Financial Health
StrongStrong · Growing, Hiring · 61% 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 filingsProvides accounting and bookkeeping services for businesses, including payroll administration, PAYE tax processing, preparation of financial statements, and compliance with HMRC and Companies House…
Serves UK small and medium-sized businesses, contractors, consultants, company directors and owner-managed firms, including sectors such as IT, healthcare and hospitality.
Financial Health
HealthyHealthy · -7% CAGR over 4y
Location
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Computed from 5 filingsProvides building data and analytics services for housing and commercial properties. Uses sensors and the Neronis platform to collect and integrate building system data, monitoring energy use,…
Serves social housing providers and commercial building owners, operators and facilities teams seeking data on energy use, occupancy and indoor environmental conditions.
Financial Health
StrongStrong · Hiring · 14% CAGR over 4y
Location
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Computed from 5 filingsProvides project consultancy services supporting organisations delivering major projects, particularly in regulated and safety‑critical industries. Integrates with client teams to provide project…
Serves businesses and organisations delivering major projects in the UK and Europe, especially clients in heavily regulated, safety-conscious industries.
Financial Health
HealthyHealthy · Hiring · 14% CAGR over 4y
Location
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Computed from 5 filingsProvides outdoor facilities management and contracting services, including groundworks and civil engineering, hard and soft landscaping, fencing and access control installation, minor works and…
Serves B2B and public-sector buyers, including commercial property operators, facilities management teams, local authorities, education providers, healthcare sites and residential/private estates…
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
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Computed from 5 filingsSupplies and wholesales fresh fruit and vegetables, including organic produce, through an online store. Offers items such as sweet corn, broccoli, lettuce and melons, with ordering, delivery and…
Serves UK business customers buying fresh fruit, vegetables and dairy wholesale, including buyers needing customised produce combinations with nationwide delivery or click-and-collect.
Financial Health
StrongStrong · Hiring · 6% CAGR over 4y
Location
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Computed from 5 filingsSupplies flavouring products for use in beverages, e‑liquids and other applications. Offers a flavour library for ordering and provides advice and support to businesses developing or enhancing…
Serves businesses developing consumer products that use flavourings, including beverage and e-liquid manufacturers, product developers and brands seeking stock or bespoke flavours.
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
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Computed from 3 filingsProvides haulage services using high-volume walking floor trailers, transporting biomass for energy production, waste-to-energy materials, animal bedding, recyclable commodities, and bulk or…
Serves B2B customers in biomass energy, waste-to-energy, animal bedding and recycling sectors, plus arboricultural and forestry suppliers selling chip for biomass and horticulture.
Financial Health
StrongStrong · Growing, Hiring · 18% CAGR over 2y
Location
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Computed from 5 filingsProvides interior construction and fit‑out services for commercial and residential developments, including loadbearing SFS framing, drywall partitions, suspended ceilings, plastering, beam encasement…
Serves B2B construction clients, including main contractors and property developers delivering hotels, apartments, student accommodation and mixed-use schemes across the UK.
Financial Health
StrongStrong · Hiring · 43% CAGR over 4y
Location
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Computed from 5 filingsProvides project management and cost consultancy services for property and construction developments, advising on planning, procurement and delivery of building projects and overseeing the…
Serves UK property developers, construction clients and organisations commissioning built-environment projects from inception to completion.
Financial Health
StrongStrong · Growing, Hiring · 17% CAGR over 4y
Location
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Computed from 5 filingsSupplies food and catering products to restaurants and takeaway businesses, including frozen poultry, drinks, fresh and chilled foods, fats and oils, sauces, spices, flour and breading, pizza…
Serves catering and foodservice businesses, including restaurants, takeaways, chicken shops and chefs, with buyers needing wholesale food, packaging, cleaning and kitchen supplies.
Financial Health
HealthyHealthy · Hiring · 25% CAGR over 4y
Location
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Computed from 5 filingsDesigns and manufactures LV switchgear, generator control systems and process control panels. Provides installation, commissioning and maintenance of diesel generators, UPS systems and switchgear,…
Serves B2B customers including commercial and industrial facilities, engineering teams and site operators with critical power infrastructure, generator/UPS, LV switchgear or process control…
Financial Health
StrongStrong · Growing, Hiring · 26% CAGR over 4y
Location
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Computed from 5 filingsProvides security guarding services for retail stores, shopping centres, construction sites, vacant premises and rail environments. Also supports special events and emergency response, supplying…
Serves UK businesses and site operators, including retailers, commercial shopping complexes, construction firms, vacant property owners, rail sector clients and special event organisers.
Financial Health
StrongStrong · Growing, Hiring · 4% CAGR over 4y
Location
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Computed from 3 filingsProvides precision CNC machining services including CNC turning, milling, component fitting and CMM inspection. Manufactures machined parts and structural components for sectors such as aerospace,…
Serves B2B engineering and manufacturing customers in oil and gas, nuclear, aerospace, defence, motorsport, construction, forestry and agriculture, including buyers of structural components and…
Financial Health
StrongStrong · Growing, Hiring · 87% CAGR over 2y
Location
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Computed from 5 filingsProvides infrastructure inspection services using rope access, drones, robotics and non-destructive testing. Conducts asset integrity assessments for water utilities, oil and gas, power generation,…
Serves B2B asset owners and operators in water utilities, oil and gas, power generation and renewables, particularly teams responsible for critical infrastructure, industrial facilities and…
Financial Health
StrongStrong · Growing, Hiring · 11% CAGR over 4y
Location
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Computed from 3 filingsProvides healthcare staffing and recruitment services supplying nurses, healthcare assistants and support workers to care homes, hospitals, GP surgeries, local authorities and home care clients. Also…
Serves health and social care organisations, including care and nursing homes, local authorities, private hospitals and GP surgeries, plus service users needing support in their own homes.
Financial Health
StrongStrong
Location
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Computed from 3 filingsProvides corporate legal services to businesses, including advice and representation on mergers and acquisitions, private equity transactions, commercial contracts, company secretarial matters,…
Serves business owners, entrepreneurs, private equity investors and companies needing corporate, commercial, employment, property or litigation support, particularly around transactions and routine…
Financial Health
HealthyHealthy · -9% CAGR over 2y
Location
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Computed from 5 filingsProvides security services for businesses, including manned/static guarding, mobile patrols, retail and reception security, building protection, and CCTV installation with remote monitoring to…
Serves UK businesses and site managers needing security coverage, including retail chains, office complexes, construction sites, warehouses, industrial facilities and multi-site premises.
Financial Health
StrongStrong · Hiring · 20% CAGR over 4y
Location
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Computed from 5 filingsProvides IT consultancy and specialist resourcing for core banking systems, particularly the Temenos ecosystem. Services include analysis, design, implementation and managed support for banking…
Serves banks and financial institutions using Temenos T24/core banking platforms, targeting technology, operations and change teams that need specialist expertise for complex banking system…
Financial Health
HealthyHealthy · 23% CAGR over 2y
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Computed from 5 filingsProvides road haulage and bulk material transportation using tipper trucks and tipping chassis trailers. Operates a fleet transporting large-volume loads for supply chains, including freight…
Serves B2B supply chain customers needing bulk materials moved from major UK ports, including importers, exporters, freight forwarders and logistics operators requiring nationwide haulage capacity.
Financial Health
HealthyHealthy · Growing, Hiring · 5% CAGR over 4y
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Computed from 3 filingsProvides consulting, implementation and application lifecycle management for corporate performance management and finance systems, including OneStream and Microsoft Dynamics 365. Offers solutions for…
Serves finance, tax, ESG reporting and corporate performance management teams at multinational organizations, particularly enterprises using OneStream and Microsoft Dynamics 365.
Financial Health
StrongStrong · Hiring · 46% CAGR over 2y
Location
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Computed from 5 filingsProvides road haulage and transport services, moving goods such as machinery, power equipment, construction materials, waste, retail stock, bedding and vehicles for sectors including events,…
Serves UK businesses and contractors needing nationwide haulage, including events and entertainment firms, power supply providers, machinery suppliers, waste operators, building materials companies,…
Financial Health
HealthyHealthy · -3% CAGR over 5y
Location
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Computed from 5 filingsProvides industrial roofing installation, inspection, maintenance and repair services for commercial and industrial sites. Works with composite insulated panels, GRP, polycarbonate and single‑skin…
Serves B2B customers operating industrial sites across the UK, from small businesses in industrial units, car showrooms and barns to larger food manufacturing plants and quarries.
Financial Health
StrongStrong · 44% CAGR over 3y
Location
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Computed from 5 filingsDesigns and builds modular exhibition stands for trade shows and events. Provides display systems, signage, large-format and fabric graphics printing, and branded interior displays, including…
Sells to UK businesses and organisations exhibiting at trade shows and events, including marketing teams and exhibitors needing exhibition stands, branded displays, signage and print. Serves a range…
Financial Health
StrongStrong · Hiring · 15% CAGR over 4y
Location
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Computed from 5 filingsProvides engineering consultancy services including flood risk assessments, drainage and sustainable drainage design, transport planning and modelling, highway and infrastructure engineering, and…
Sells to landowners, land promoters, property developers, affordable housing providers, architects, planners, local authorities, public sector bodies and private individuals, serving projects across…
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
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Computed from 5 filingsProvides design, supply, installation and maintenance of building envelope systems, including curtain walling, cladding, glazing and façade elements. Acts as principal contractor on refurbishment and…
Serves commercial property owners, developers, main contractors and facilities teams on offices, retail, high-rise, heritage and infrastructure sites in the UK and overseas.
Financial Health
StableStable · Hiring · 11% CAGR over 4y
Location
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Computed from 5 filingsProvides contract commercial cleaning services for offices, schools and other workplaces, including daily cleaning, vacuuming, dusting, mopping, toilet sanitation, carpet cleaning, internal window…
Serves businesses and institutions needing managed contract cleaning, including offices and school buildings, with contracts tailored around operating hours and industry requirements.
Financial Health
StrongStrong · Hiring · 22% CAGR over 4y
Location
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Computed from 5 filingsProvides logistics and site support services for mobile telecommunications infrastructure, including kerbside and last‑metre delivery, transport and specialist handling of equipment, and support for…
Serves UK mobile telecoms operators, equipment vendors and site contractors needing support for building, upgrading or decommissioning mobile network cell sites.
Financial Health
StrongStrong · Hiring · 38% CAGR over 4y
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Computed from 5 filingsProvides telecommunications infrastructure services including fixed-network surveying, civil works, fibre and copper cabling, splicing and testing, and FTTP network build. Also delivers data centre…
Serves B2B telecommunications customers, including fixed-line network operators, enterprise network teams, infrastructure owners and data centre operators involved in UK network projects.
Financial Health
HealthyHealthy
Location
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Computed from 5 filingsImports and distributes fresh fruit, specialising in exotic varieties such as grapes, limes, coconuts, papayas and mangoes. Supplies produce to wholesalers and retailers across European markets and…
Serves European fruit buyers and “fruit lovers” seeking exotic produce such as grapes, limes, coconuts, papaya and mangoes; the site does not specify retailer, wholesaler or consumer focus.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
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Computed from 3 filingsProvides management services for public houses, including turnaround and reopening of closed or underperforming pubs, recruitment and placement of pub managers, operational oversight, and back‑office…
Serves pub owners, operators and major pub companies in the licensed trade, particularly those with community pubs that are closed, underperforming or in need of management support.
Financial Health
HealthyHealthy · Hiring · 211% CAGR over 2y
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Computed from 5 filingsProvides education recruitment services, supplying schools with qualified teachers and support staff. Screens and vets candidates, manages placements, and connects UK and overseas educators with…
Serves London schools and education hiring managers across nursery, primary, secondary and SEND, alongside UK-based and overseas teachers seeking placements in and around London.
Financial Health
StrongStrong · Hiring · 15% CAGR over 4y
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Computed from 3 filingsOperates a pop culture merchandise business that designs and manufactures licensed gifts, home décor, and collectible items based on entertainment and gaming franchises, supplying products to retail…
Serves retailers stocking licensed pop-culture gifts, home décor and collectibles, and entertainment brands seeking licensing partnerships across the UK, mainland Europe, Australasia, the Middle East…
Financial Health
HealthyHealthy · Hiring · 19% CAGR over 2y
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Computed from 5 filingsProvides professional and technical support services including security design engineering, financial data analysis, project management, cost and distribution management, vendor management, and…
Serves businesses requiring outsourced professional and technical support, including corporate property/security teams, engineering firms and organisations managing multi-site or international…
Financial Health
StrongStrong · Hiring · 67% CAGR over 5y
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Computed from 3 filingsSupplies food ingredients and catering equipment to food manufacturers, bakeries, chocolatiers, dessert businesses and retailers. Product range includes cocoa, chocolate, seasonings, colours and…
Serves B2B customers in the food industry, including food manufacturers, bakeries, chocolatiers, dessert bars and food retailers.
Financial Health
StrongStrong · Growing, Hiring · 41% CAGR over 2y
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Computed from 5 filingsProvides façade remediation and external wall system services for building projects, including design, manufacture and installation of rainscreen cladding, brick slip systems, external wall…
Serves B2B construction clients, including developers, main contractors and building owners, on apartment, student accommodation and refurbishment projects requiring compliant façade and external…
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
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How One.com 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. B2B companies are identified using Firmbase's semantic classification of company activity, built from filings, websites and registered SIC codes rather than SIC codes alone. The detected counts and share figures on this page are computed within that sector cohort, so "share" always means share of B2B companies with a detectable system — not of all UK companies.
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.
One.com 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 UK B2B companies use One.com?
What share of UK B2B companies run One.com?
How is One.com usage detected?
What size B2B companies use One.com in the UK?
What do One.com-running B2B companies also run?
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