B2B Companies Using SiteWit in the UK: 50 Active Firms (2026)
B2B organisations using website optimisation technology sell products or services to other businesses in the UK.
Adoption usually sits with marketing operations, sales leadership or an owner-manager rather than IT procurement. The technology’s job is to link paid search, website visits and enquiry capture into a view of which campaigns produce business leads. Among B2B suppliers, running it tends to signal a company with an active direct-channel posture: lead forms, phone enquiries, tracked campaigns and a commercial team that wants attribution rather than a brochure site. Engagements are usually modest in scope, centred on tagging, landing-page testing, campaign routing and reporting for small specialist teams or mid-sized sales functions.
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Across the UK, 50 companies are actively trading with this website optimisation technology detected on their public sites. Reported employment associated with the cohort totals 724 people, giving it a small-company profile rather than an enterprise-software footprint. Within B2B analytics detections, the system sits near the foot of the category ranking at 0.1%, against a category denominator of 45,601. Regional concentration is fairly spread: the South East accounts for 18% of adopters, London 16%, and the West Midlands, North West and Yorkshire and The Humber 12% each.
B2B is not a single licensed industry in the UK, so compliance turns on the underlying activity: financial services, telecoms, professional services and data processing can each bring different rulebooks. For companies running conversion and attribution tooling, the practical focus is marketing permissioning and personal-data handling. ICO guidance says PECR covers direct marketing by live or automated calls, electronic mail and fax; its electronic-mail consent rule does not apply to corporate subscribers, but senders must identify themselves and provide a valid opt-out route. UK GDPR still applies when business-contact data is processed, and live B2B calls need screening against telephone-preference lists where objections may have been lodged.
Adoption appears to sit in a long tail of smaller B2B suppliers rather than in larger enterprise marketing stacks. The tool tends to be used where owners or sales-led teams want a clearer line between spend, enquiries and follow-up, but do not yet run a heavy marketing-operations function. Future movement is likely to be shaped by privacy-led measurement limits, bundled analytics inside website platforms and the cost of maintaining separate point tools. For this cohort, consolidation risk looks more relevant than a broad migration wave, particularly where basic analytics and consent workflows are already packaged with the website build.
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
Active director count is the full Companies House board, so it can be higher than the number of names listed — we leave out nominee and formation-agent directors, who aren’t worth contacting. It’s blank for the small number of companies whose officers we haven’t fetched yet.
You’re charged per business, not per row. Where a business trades through several registered companies you get every one, and the Group Primary column marks one row per business — filter to those and the count matches your invoice. Rows sharing a website are not automatically one business: franchises and multi-site operators each count separately, and where names don’t prove a relationship we count them apart rather than guess.
Adoption by company size
Adoption of SiteWit rises with company size across the trading UK B2B companies in this cohort. 0% of the 76,784 companies with under 10 employees run SiteWit (31 detected). 0.1% of the 31,788 companies with 10–50 employees run SiteWit (17 detected). 0.1% of the 3,773 companies with over 50 employees run SiteWit (2 detected). That is a 0.1% gap between the over 50 employees and under 10 employees bands.
50
Active firms
2026
0.1%
Of detected Analytics share
UK B2B
7
Median headcount
Filed accounts
78
Verified directors
Across this cohort
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Key facts
About 4% of the trading cohort reports turnover above £5M (2 of 50 firms) — the rest sits below that revenue band.
4% of the cohort was incorporated since 2022 (2 firms), so a sizeable share is in its first few filing cycles.
Within B2B organisations with a detectable analytics system, this website optimisation technology represents 0.1% of detected use (50 of 45,601).
Common companion tools include website hosting at 44.0% (22 firms), analytics at 30.0% (15), site-building at 26.0% (13), CMS at 22.0% (11) and network/security tooling at 20.0% (10).
Registered offices skew towards the South East at 18.0% (9) and London at 16.0% (8), with the West Midlands, North West and Yorkshire and The Humber each at 12.0% (6).
Sector tags overlap, with Wholesale & Distribution and Field Services & Trades each at 22.0% (11), and Construction and Advanced Manufacturing each at 14.0% (7).
The ICO says PECR covers direct marketing by live or automated calls, electronic mail and fax; UK GDPR still applies where personal data is processed, including business-contact data.
Analytics market share among UK B2B
Share of the 45,601 UK B2B with a detectable system. As of June 2026.
What else do SiteWit-running B2B run?
Share of the 50 SiteWit-running UK companies where each technology was also detected. As of June 2026.
Where SiteWit 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
£572.6K
Median UK turnover
4%
Above £5M turnover
2
Incorporated since 2022
Verified directors — included in the file
Director names and roles for these 79 businesses, alongside financials and websites, in one Excel + CSV file.
Top UK B2B using SiteWit
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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Computed from 5 filingsProvides management and technology consulting focused on digital transformation, enterprise architecture and robotic process automation. Also develops websites and mobile applications and advises…
Targets B2B and public sector clients across professional services, financial services, retail, utilities, technology and outsourcing, including organisations with technology, operations and strategy…
Financial Health
StrongStrong · Hiring · 63% CAGR over 4y
Location
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Computed from 5 filingsSupplies insulated panels, cold room doors, wall protection panels, trims, flashing, channels, and fixings for cold storage and panel construction. Offers accessories including PVC curtains,…
Serves B2B buyers such as cold room installers, refrigeration contractors, builders and facilities teams needing insulated panel and cold-room components.
Financial Health
StrongStrong · Growing, Hiring · 32% CAGR over 4y
Location
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Computed from 5 filingsDevelops accounting software for charities and churches, offering online and desktop systems for multi‑fund accounting, donation and Gift Aid tracking, and Charity Commission reporting, plus payroll…
Serves charities, churches, clubs and other nonprofit organisations, particularly treasurers, finance teams and administrators needing charity-sector accounting, payroll, independent examination and…
Financial Health
HealthyHealthy · Hiring · 5% CAGR over 4y
Location
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Computed from 5 filingsSupplies industrial adhesives including hot‑melt, reactive, and specialist bonding products for applications such as woodworking and joinery, printing and bookbinding, engineering, construction, and…
Serves B2B trade and industrial buyers in manufacturing, construction, packaging, woodworking and joinery, printing, bookbinding and engineering.
Financial Health
StableStable · -6% CAGR over 4y
Location
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Computed from 5 filingsManufactures and supplies dry ice products, including 3mm and 16mm pellets and 500g and 1kg slices, for cooling, transport, and industrial uses. Also sells reusable gel ice packs and offers online…
Sells to businesses and other UK customers needing dry ice, including flight caterers and users of blasting pellets and cold-chain cooling products.
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
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Computed from 5 filingsSupplies electronic components and IT hardware, including new and refurbished servers, CPUs, SSDs and PCBs. Provides supply chain management and sourcing services, and offers temporary and permanent…
Serves B2B customers including large enterprises, organisations across multiple sectors hiring temporary or permanent staff, and buyers of enterprise or personal computing components through its…
Financial Health
WeakWeak · -19% CAGR over 4y
Location
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Computed from 5 filingsProvides aircraft avionics installation, repair and maintenance services alongside aircraft engineering support. Sells avionics equipment, instruments, radios, transponders, pilot supplies and…
Serves private and commercial aircraft owners, pilots, aircraft operators and aviation maintenance buyers in general aviation seeking avionics, pilot supplies, aircraft parts, repairs and…
Financial Health
DistressedDistressed · -6% CAGR over 4y
Location
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Computed from 2 filingsSupplies custom corporate apparel and promotional merchandise for businesses and teams, including branded clothing and marketing items. Provides design assistance to create customised products for…
Sells to businesses, corporate buyers, teams and organisations seeking customised branded apparel and promotional products for staff, events or marketing use.
Financial Health
HealthyHealthy · Hiring · 26% CAGR over 1y
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 retail design and architectural services, including retail concept development, in‑store experience design, interior architecture, and project management for retail and commercial spaces as…
Serves international retail brands and commercial businesses, particularly clients planning store concepts, in-store environments, interiors and architectural projects.
Financial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
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Computed from 5 filingsSupplies cleaning, janitorial and washroom products through an online store, including paper hygiene products, detergents, chemicals, PPE and waste sacks, with an emphasis on plastic‑free and…
Serves businesses and consumers seeking sustainable cleaning, washroom, janitorial, catering and decorating supplies, including facilities teams, cleaning contractors, hospitality operators,…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides graphic design, website design and development, and digital marketing services. Produces printed materials including marketing collateral, business stationery and signage, and offers digital…
Serves B2B and B2C customers across the UK, including individuals, small businesses and larger companies. Targets organisations needing print, web and marketing support, with examples including trade…
Financial Health
StableStable · Hiring · 7% CAGR over 4y
Location
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Computed from 5 filingsDesigns and manufactures laboratory automation instruments for microbiology and genetics research, including colony picking robots, imaging systems, liquid handling devices, micromanipulators and…
Serves research scientists and laboratory teams in academia, biotech, pharma, synthetic biology and public-sector research organisations worldwide, including universities, corporate R&D labs and…
Financial Health
HealthyHealthy · Hiring · 6% CAGR over 4y
Location
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Computed from 4 filingsProvides advisory services to institutional investors and asset managers, including operational and investment due diligence, governance and strategy consulting, custodian and fund administrator…
Serves institutional investment organisations globally, including asset allocators, investment managers, custodians, fund administrators and related third-party financial services providers.
Financial Health
HealthyHealthy · Hiring · 23% CAGR over 2y
Location
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Computed from 5 filingsProvides recruitment services for UK charities, specialising in sourcing and placing fundraising professionals. Works with nonprofit organisations to fill fundraising roles and supports candidates…
Serves UK charities hiring fundraising professionals, particularly fundraising and charity leaders needing specialist recruitment support for hard-to-fill roles; also works with fundraising…
Financial Health
WeakWeak · Hiring · 19% CAGR over 4y
Location
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Computed from 5 filingsSupplies liquid colourants and additive systems for plastics processing. Provides custom colour formulations, special‑effect and functional additives, and ancillary dosing equipment, along with…
Serves B2B plastics processors and manufacturers needing liquid colouring, additive, custom colour, special-effect and ancillary equipment systems for production processes.
Financial Health
StableStable · -71% CAGR over 4y
Location
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Computed from 5 filingsSupplies printing machinery accessories and maintenance products, including doctor blades, cleaning gels, lint‑free wipes, brushes and disposable ink trays. Distributes equipment and consumables used…
Sells to B2B printing companies and press operators needing machinery accessories and cleaning products for their printing processes. Serves printing businesses worldwide with requirements for press…
Financial Health
WeakWeak · -24% CAGR over 4y
Location
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Computed from 3 filingsProvides installation and management of network infrastructure, including structured cabling, fibre optic systems, analogue phone systems, wired data points, and wireless access points. Also…
Serves small businesses, large enterprises and domestic customers across commercial, healthcare, hospitality and education sectors needing telecoms and network infrastructure support.
Financial Health
StrongStrong · Hiring · 347% CAGR over 2y
Location
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Computed from 3 filingsInsurance brokerage that designs, arranges and services commercial and corporate insurance programmes, including business, real estate and private client insurance policies, providing advice and…
Serves commercial and corporate clients, real estate clients and private individuals, addressing a mix of B2B and private client insurance buyers.
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 2y
Location
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Computed from 4 filingsProvides electrical engineering, testing and maintenance services for solar photovoltaic installations, including planned and reactive maintenance, aerial thermography using drones, IV curve and…
Serves B2B customers in the solar PV and renewable energy sector, including large-scale PV asset owners, asset managers, EPC contractors and O&M contractors.
Financial Health
StrongStrong · Growing, Hiring · 14% CAGR over 3y
Location
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Computed from 4 filingsManufactures and wholesales aftermarket and performance automotive parts, including clutch kits, flywheels, brake discs, brake pads and big brake kits for passenger cars, 4x4s and light commercial…
Sells to B2B and B2C automotive buyers, including distributors, garages and car enthusiasts seeking aftermarket, performance and 4x4 parts for passenger cars and light commercial vehicles across…
Financial Health
StrongStrong · Growing, Hiring · 22% CAGR over 3y
Location
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Computed from 3 filingsManufactures cartonboard packaging including cartons, blister cards and display boxes. Provides in‑house packaging design, lithographic printing, die cutting and gluing, producing short and large…
Serves B2B product manufacturers and brands needing carton board packaging, including food, household, cosmetics and gift sectors, from short-run orders to high-volume production.
Financial Health
HealthyHealthy · Growing, Hiring · 18% CAGR over 2y
Location
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Computed from 5 filingsSupplies refurbished office furniture, including branded chairs, desks and storage, to businesses. Provides furniture refurbishment services such as reupholstery and resizing, and collects surplus…
Serves UK businesses and organisations, including SMEs, corporate teams, councils, universities and multi-site operations needing office furniture supply, refurbishment, clearance or recycling…
Financial Health
HealthyHealthy · Hiring · 26% CAGR over 4y
Location
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Computed from 3 filingsProvides aerospace design engineering services for commercial and private aircraft, including cabin interior modifications, avionics, structural and exterior changes, aircraft transitions,…
Serves B2B aerospace customers, including aircraft leasing companies, MRO providers and operators of commercial and private jet aircraft worldwide.
Financial Health
StableStable · 3% CAGR over 2y
Location
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Computed from 5 filingsProvides engineering, procurement and manufacturing services for industrial projects, including design, construction and maintenance. Develops industrial equipment systems such as pumps,…
Serves B2B industrial operators, project owners and facility teams running severe-service environments with mechanical, thermal, corrosive or abrasive conditions, including users of pumps,…
Financial Health
StableStable · 1% CAGR over 4y
Location
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Computed from 5 filingsRetailer of interior and exterior paints, decorating supplies, and painting tools. Sells brushes, rollers, masking tapes, sealants, sanding products, spraying equipment, and hand and power tools from…
Serves professional decorators, painters, tradespeople and DIY home improvement customers buying online or from Frimley and Basingstoke stores, including repeat trade account buyers.
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 3 filingsManufactures and supplies uPVC windows and doors for trade customers, including casement and vertical sliding systems. Produces frames using Eurocell profiles and Era and Nico hardware, and provides…
Serves trade customers in the windows and doors sector, including installers, builders and home improvement firms supplying residential projects for traditional and modern homes.
Financial Health
WeakWeak · -18% CAGR over 2y
Location
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Computed from 2 filingsProvides shallow geothermal drilling services for commercial construction and energy projects. Specialises in drilling geothermal boreholes for ground source heat pump systems, using specialised…
Serves B2B customers including main contractors, property developers and geothermal energy partners delivering commercial building and infrastructure projects across the UK and Europe.
Financial Health
StrongStrong · Growing · 0% CAGR over 1y
Location
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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
Location
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Computed from 3 filingsSupplies uPVC and aluminium windows, doors, patio doors and bi-fold door systems to trade customers. Provides window and door frames and related products for installation in residential and…
Serves trade customers, including window and door installers, builders and contractors, who source uPVC and aluminium windows, doors, patio doors and bi-folds for their own end clients.
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
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Computed from 4 filingsSupplies and installs bottled and mains‑fed water coolers for offices, schools, gyms, construction sites and homes. Delivers bottled spring water and provides water cooler rental, servicing, and…
Sells to businesses needing water coolers, including offices, gyms, schools and construction sites, as well as households seeking home water cooler supply.
Financial Health
StrongStrong · Growing, Hiring · 26% CAGR over 3y
Location
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Computed from 5 filingsConducts research and development of quantum‑inspired algorithms and hybrid quantum‑classical computing methods. Applies optimisation models to aviation data aiming to improve flight path planning…
Serves airports, aviation operators, public-sector partners and industrial organisations facing complex optimisation and emissions challenges, initially focused on the aviation sector.
Financial Health
StrongStrong · Hiring · 43% CAGR over 5y
Location
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Computed from 3 filingsSupplies branded sports teamwear, training apparel and sporting equipment through an online and retail shop. Distributes kits, clothing and accessories from major brands and offers bulk orders and…
Sells to sports clubs, school teams, academies, coaches and leagues, with club shops for grassroots football, netball, athletics, hockey, swimming and other team sports, plus individual players and…
Financial Health
HealthyHealthy · -7% CAGR over 2y
Location
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Computed from 5 filingsProvides commercial property refurbishment and maintenance services, including office strip-outs, full refurbishments, suspended ceilings, plumbing, electrical installations, decorating, common area…
Serves commercial property owners, landlords and facilities or property managers responsible for offices and shared building areas across London and the South East.
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 3 filingsProvides CNC machining and manufacture of precision turned parts and engineering components. Produces prototypes and small to medium batch parts from drawings or samples, and offers reverse…
Serves B2B engineering and manufacturing customers across industries, including high-precision automotive and decorative product sectors, with buyers requiring prototype, small-batch or larger-batch…
Financial Health
WeakWeak · Hiring · 6% CAGR over 2y
Location
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Computed from 3 filingsManufactures and supplies anti-slip timber decking boards and retrofit inserts for walkways, steps and outdoor spaces. Offers softwood and hardwood decking, composite decking, stair nosings, safety…
Serves homeowners, domestic garden projects, timber and builders’ merchants, contractors, and organisations managing commercial premises, public spaces and rail/transport sites.
Financial Health
StableStable · -6% CAGR over 2y
Location
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Computed from 5 filingsProvides facilities management services including building maintenance, commercial and industrial cleaning, waste management, and security services. Also offers post-construction cleaning and managed…
Serves public and private organisations, businesses, and construction or renovation clients needing building, security and cleaning support across Yorkshire, the North West, North East, Midlands and…
Financial Health
WeakWeak · -2% CAGR over 4y
Location
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Computed from 4 filingsSupplies and distributes stone slabs including granite, marble, quartz, quartzite and porcelain for kitchen worktops, bathrooms and architectural projects. Maintains large inventory, offers slab…
Serves stone fabricators, architects, design studios, renovators and homeowners seeking materials for kitchens, bathrooms, fireplaces and high-end residential or commercial projects across the UK.
Financial Health
HealthyHealthy · -76% CAGR over 3y
Location
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Computed from 5 filingsSupplies bulk and fine chemical products, including salt products, to commercial customers. Operates warehousing and distribution for industrial chemicals and ingredients, and provides delivery and…
Serves business customers buying bulk and fine chemicals, including industrial and marine-related buyers needing salt products and chemical supplies. Targets trade and commercial purchasers rather…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
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Computed from 4 filingsProvides road haulage and freight transport using articulated lorries, including walking floor, curtainsider, flatbed and refrigerated trailers. Moves bulk materials, timber, machinery, pallets and…
Serves businesses needing road haulage for bulk goods, pallets, timber, logs, machinery, farm equipment, refrigerated loads and containers, including construction, agriculture, forestry,…
Financial Health
StrongStrong · Growing, Hiring · 14% CAGR over 3y
Location
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Computed from 5 filingsOperates warehousing and storage facilities offering pallet racking, bulk and external container storage, and self‑storage units. Provides third‑party logistics services including stock intake,…
Sells to both businesses and individual customers needing self-storage, pallet storage, bulk or racked warehousing, external container storage, and managed 3PL support. Targets firms with stock…
Financial Health
StrongStrong · Growing, Hiring · 68% CAGR over 4y
Location
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Computed from 5 filingsProvides temperature-controlled haulage and logistics for the food and horticultural sectors. Operates a fleet of HGV and van vehicles to transport chilled goods, offering full and part loads,…
Serves B2B customers in the food and horticultural industries needing temperature-controlled transport, including firms requiring contract logistics, haulage, direct deliveries, sample transport and…
Financial Health
HealthyHealthy · Hiring · 21% CAGR over 4y
Location
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Computed from 5 filingsProvides installation, maintenance and servicing of air conditioning, refrigeration, heating, ventilation and air treatment systems. Serves commercial and public sector facilities including…
Serves UK public sector organisations and commercial clients, including NHS hospitals, local councils, universities, colleges, schools, hotels, golf clubs and other major companies.
Financial Health
HealthyHealthy · -2% CAGR over 4y
Location
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Computed from 5 filingsProvides accounting services including bookkeeping, tax preparation, VAT returns, payroll processing, self‑assessment filings and financial reporting. Also offers tax advisory and audit services for…
Serves UK businesses—especially limited companies, start-ups, SMEs and established firms—alongside self-employed individuals and personal tax clients.
Financial Health
HealthyHealthy · Hiring · 5% CAGR over 4y
Location
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Computed from 5 filingsProvides precision CNC machining services including CNC turning and milling to manufacture fasteners and engineered components such as nuts, studs, headed parts and washers, alongside design support,…
Serves B2B customers in precision-led industries, including oil and gas subcontractors and suppliers, defence and aerospace component producers, motorsport teams, and large multinational…
Financial Health
WeakWeak · -3% CAGR over 4y
Location
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Computed from 5 filingsProvides facilities management services including commercial cleaning, security services, building maintenance and compliance testing. Also offers window cleaning, grounds maintenance, plumbing, air…
Serves commercial clients across South Wales and South West England, including offices, energy companies, production businesses, playgroups and organisations needing outsourced facilities, cleaning…
Financial Health
HealthyHealthy · Hiring · 3% CAGR over 4y
Location
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Financial sub-scores
Computed from 5 filingsProvides manned security guarding services for businesses and organisations, supplying trained security guards to protect premises, assets and staff, and offering on-site physical security presence…
Serves businesses and organisations in London across public and private sectors that require a physical security presence to protect premises, staff and assets.
Financial Health
WeakWeak · Hiring · 52% CAGR over 4y
Location
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Computed from 4 filingsProvides welding fabrication, CNC machining, sheet metal manufacturing and precision folding services. Produces custom metal components and assemblies from design through to finished parts built to…
Serves business customers needing custom sheet metal work, machining and fabrication, likely including manufacturers, engineering firms and other industrial buyers seeking made-to-specification…
Financial Health
WeakWeak · -8% CAGR over 3y
Location
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Computed from 3 filingsProvides electrical contracting services for commercial and industrial clients, including installation, maintenance, testing, upgrades and related electrical works for business premises, industrial…
Serves B2B customers in commerce and industry, targeting commercial organisations and industrial operators rather than residential consumers.
Financial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
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29 more companies and their verified directors are in the file
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How SiteWit 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.
SiteWit is a trademark of its respective owner. Firmbase is not affiliated with, sponsored by, or endorsed by the trademark owner.
UK B2B by Analytics
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Frequently asked questions
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