Construction Companies Using iThemes in the UK: 138 Active Firms (2026)
Construction firms using web security tooling build, refurbish and maintain assets across the UK while managing public-facing digital channels.
For contractors, specialist trades and built-environment services providers, this kind of security tooling usually sits behind the public website rather than inside project-delivery systems. Its job is to reduce routine site risk: login abuse, form spam, malicious traffic and weak administration practices. Adoption tends to signal a company with a maintained digital front door, used for tender credibility, project enquiries, recruitment and stakeholder updates. The buyer is often an owner-managed or lower mid-market operator with outsourced web support, not an internal security function. Spend is therefore tied to keeping a visible commercial channel working, rather than to a broad enterprise technology programme.
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The UK construction adoption cohort contains 138 actively trading companies running this web security plugin. Reported headcount across the cohort totals 1,005, giving the group a visible but relatively modest employment footprint. Within the sector’s detected plugin mix, the tool sits ninth at 5.5%, behind more commonly observed content, analytics and media add-ons. Registered addresses skew towards the South West at 21.0% and London at 19.6%, followed by the North West at 12.3%, Wales at 10.9% and the West Midlands at 10.9%. That spread looks more regional-contractor than centrally concentrated technology buying.
Website security is not a licensed construction activity, but adoption sits inside a sector with several overlapping compliance regimes. HSE’s Construction (Design and Management) Regulations frame planning, competence, coordination and worker consultation. HMRC’s Construction Industry Scheme affects contractor and subcontractor payment handling, while OPSS oversees construction product regulation and works with the Building Safety Regulator within HSE on building-safety-related issues. For companies running public websites, the practical obligation is less about software regulation itself and more about keeping enquiry, recruitment and tender-support channels defensible, with form protection, access control and GDPR handling where personal details are collected.
Adoption appears tied to the sector’s gradual move from brochureware sites to maintained commercial channels. Construction users tend to be pragmatic buyers: security tooling is likely to remain bundled with hosting, maintenance retainers or agency support, rather than managed by internal web-security teams. The scarcer group is the more mature contractor that treats the website as part of supplier assurance and bid credibility. Platform bundling may narrow standalone plugin choice over time, but tender scrutiny, recruitment pressure and direct enquiry flows should keep basic hardening on the operational checklist.
Adoption by company size
Adoption of iThemes rises with company size across the trading UK construction companies in this cohort. 0% of the 231,908 companies with under 10 employees run iThemes (93 detected). 0.5% of the 8,701 companies with 10–50 employees run iThemes (42 detected). 0.2% of the 662 companies with over 50 employees run iThemes (1 detected). That is a 0.2% gap between the over 50 employees and under 10 employees bands.
138
Active firms
2026
5.5%
Of detected WordPress plugins share
UK construction
7
Median headcount
Filed accounts
236
Verified contacts
Across this cohort
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Key facts
About 2% of the trading cohort reports turnover above £5M (4 of 138 firms) — the rest sits below that revenue band.
4% of the cohort was incorporated since 2022 (6 firms), so a sizeable share is in its first few filing cycles.
Among 2,532 construction firms with a detectable plugin system, this security plugin accounts for 5.5% (138), behind eight higher-share plugins.
The cohort skews towards the South West at 21.0% (29), followed by London at 19.6% (27) and the North West at 12.3% (17).
Two-thirds are also detected with a drag-and-drop site builder at 66.7% (92), while analytics tags appear on 65.2% (90) and search-optimisation tooling on 60.9% (84).
Regulatory exposure is split across HSE’s Construction (Design and Management) Regulations 2015, HMRC’s Construction Industry Scheme and construction-products rules overseen by the Office for Product Safety and Standards.
ONS construction statistics for Great Britain show new work increased by 1.4% in 2024, while new orders grew by 5.6%.
WordPress plugins market share among UK Construction
Share of the 2,532 UK Construction with a detectable system. As of June 2026.
What else do iThemes-running Construction run?
Share of the 138 iThemes-running UK companies where each technology was also detected. As of June 2026.
Where iThemes Construction 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
£595.5K
Median UK turnover
2.9%
Above £5M turnover
6
Incorporated since 2022
236 verified decision-maker contacts
across these 138 companies, with emails available in Firmbase. Filter by role, seniority and stack.
Top UK Construction using iThemes
Ranked by sales-readiness score: an AI model assesses what each company does, its sector and size, and scores its overall fit. Best-fit prospects appear first.
Financial sub-scores
Computed from 3 filingsProvides ground improvement services for construction projects, using methods including vibro stone columns, rigid concrete inclusions and vertical wick drains. Offers design, installation and…
Serves developers, main contractors and civil engineering teams on residential, warehouse, commercial, retail and infrastructure projects across the UK and Ireland.
Financial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
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Financial sub-scores
Computed from 4 filingsProvides reinforced concrete contracting services for construction and civil engineering projects, including formwork, concrete placement, foundations, drainage and groundworks. Offers estimating,…
Serves main contractors, civil engineering firms and commercial clients on UK construction projects, especially heavy civils, rail, water, energy, car parks, basements and commercial buildings, with…
Financial Health
StrongStrong · Growing, Hiring · 14% CAGR over 3y
Location
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Computed from 3 filingsProvides roofing and cladding contracting services for industrial and logistics buildings. Delivers design, installation, refurbishment, and maintenance of building envelope systems for large…
Serves B2B clients developing or managing large industrial and logistics buildings, including manufacturing sites, R&D/life sciences facilities, distribution units and multi-unit business parks.
Financial Health
HealthyHealthy · Growing · 4% CAGR over 2y
Location
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Computed from 5 filingsProvides highway maintenance and civil engineering services including carriageway and footpath works, surfacing, drainage, traffic management and Section 278 works. Extracts, processes and sells…
Serves local authorities, developers, main contractors and private, industrial and commercial site owners, including buyers responsible for public realm, highways, car parks and airfield…
Financial Health
HealthyHealthy · -1% CAGR over 4y
Location
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Computed from 4 filingsProvides industrial and commercial roofing services including roof installation, refurbishment and repair. Works with systems such as felt, single‑ply membranes, mastic asphalt, roof sheeting and…
Serves blue-chip businesses, property managers and public sector organisations across the UK, including commercial, industrial, leisure, retail, education, healthcare, local authority and NHS clients.
Financial Health
StableStable · -10% CAGR over 3y
Location
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Computed from 3 filingsProvides brickwork, blockwork and stonework subcontracting services for residential and commercial construction projects. Also installs scaffolding, brick slip systems and thin joint masonry, and…
Serves national housebuilders, regional developers, builders, commercial clients and homeowners across the South East of England.
Financial Health
WeakWeak · -5% CAGR over 2y
Location
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Computed from 3 filingsProvides electrical, mechanical and building services including installation, maintenance and fit‑out contract management. Also designs and installs renewable energy systems such as solar power, air…
Serves commercial and industrial clients, main contractors and project owners across Wales and the UK needing electrical, mechanical, building and maintenance support, including cleanroom and…
Financial Health
StableStable · 0% CAGR over 2y
Location
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Computed from 4 filingsDesigns, fabricates and installs bespoke access platforms for industrial and commercial sites, including walkways, decks and maintenance platforms. Also provides MEWP hire such as cherry pickers and…
Serves UK businesses, contractors and facilities teams in construction, manufacturing, logistics, fleet maintenance, rail, aviation and commercial property, with some domestic scaffolding customers.
Financial Health
StableStable · 0% CAGR over 3y
Location
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Computed from 5 filingsProvides structural waterproofing and concrete repair services for buildings and infrastructure, including basement waterproofing, cavity drainage systems, liquid-applied membranes, resin flooring,…
Serves private, commercial and industrial property owners, local authorities and social housing providers, often via structural engineers, building surveyors, architects and main contractors managing…
Financial Health
StableStable · -67% CAGR over 4y
Location
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Financial sub-scores
Computed from 3 filingsSupplies and installs industrial and commercial security fencing systems, including mesh and palisade fencing, temporary fencing, gates, turnstiles, barriers and access control equipment. Also…
Serves industrial and commercial site owners, main contractors and subcontractors across the UK, including schools, sports facilities and organisations needing perimeter security and site safety…
Financial Health
HealthyHealthy · -8% CAGR over 2y
Location
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Computed from 4 filingsProvides electrical design and installation services for commercial and industrial projects, including bespoke lighting design, emergency lighting systems and compliance, and certified electrical…
Serves B2B customers in the South East, particularly commercial property owners, facilities managers, construction contractors and industrial site operators responsible for electrical installations…
Financial Health
HealthyHealthy · -8% CAGR over 3y
Location
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Computed from 4 filingsProvides demolition and building strip‑out services, including removal of non‑structural elements, fixtures and fittings, ceilings, floors and roofs. Also removes mechanical and electrical systems…
Serves UK construction contractors, property developers, commercial landlords and industrial site owners needing support on refurbishment, remodelling or demolition projects, from small buildings to…
Financial Health
StrongStrong · Hiring · 115% CAGR over 3y
Location
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Computed from 5 filingsProvides electrical installation, maintenance and compliance services for commercial, educational and residential properties. Services include wiring and system upgrades, inspections and landlord…
Serves commercial property owners, schools, colleges, retailers, hotels, landlords and HMO operators, alongside domestic homeowners in Coventry.
Financial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
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Computed from 5 filingsManufactures, supplies and installs roller shutters, shopfront systems, and security doors for commercial, industrial and residential properties. Also provides automatic doors, curtain walling, and…
Serves UK commercial, industrial and residential customers, including retailers, boutiques, high street stores, shopping malls, offices, car parks and homeowners.
Financial Health
StrongStrong · Hiring · 32% CAGR over 5y
Location
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Computed from 5 filingsProvides bricklaying and masonry services for construction projects, including multi-property housing developments, offices, retail and industrial buildings. Works with developers and contractors on…
Serves developers, construction contractors and architects on commercial and residential building projects, including multi-property developments, offices, retail, industrial buildings and schools…
Financial Health
StableStable · -7% CAGR over 4y
Location
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Computed from 5 filingsProvides underground and land surveying services, including PAS 128 utility mapping, ground penetrating radar surveys, ferro scanning and rebar mapping, CCTV drainage inspections, topographical and…
Serves Tier 1 contractors, developers, construction contractors, planners, and private individuals needing project survey support, with customers in London and across the UK.
Financial Health
HealthyHealthy · Hiring · 14% CAGR over 4y
Location
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Computed from 5 filingsProvides design, fabrication and installation of industrial pipework systems for water, gas, steam, compressed air, hydraulic and process applications, using carbon steel, stainless steel, copper and…
Serves UK businesses and industrial sites with small or large-scale pipework requirements, including facilities using water, gas, steam, compressed air, hydraulic or process systems.
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides concrete pump hire and concrete supply services for construction projects, including mini pump hire. Also installs liquid screed flooring and underfloor heating systems for residential and…
Serves homeowners, builders and commercial contractors with residential and commercial projects across Peterborough, the East Midlands and nearby counties including Bedfordshire, Cambridgeshire,…
Financial Health
StableStable · -3% CAGR over 4y
Location
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Computed from 4 filingsProvides pipework fabrication, welding, installation and commissioning services for industrial systems. Supplies and installs high‑pressure water mist fire suppression systems and manufactures carbon…
Serves businesses and facility operators with critical assets, targeting organisations that need certified pipework and fire suppression suppliers for industrial or commercial facilities.
Financial Health
WeakWeak · -6% CAGR over 3y
Location
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Computed from 5 filingsProvides civil engineering and foundation construction services, including mini piling and underpinning. Works on building extensions and new-build projects, delivers superstructure construction, and…
Serves UK construction clients, including developers, builders and property owners needing support for piling, underpinning, extensions and new-build projects.
Financial Health
WeakWeak · -8% CAGR over 4y
Location
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Computed from 5 filingsProvides structural repair and stabilisation services for buildings, including Helifix crack stitching, wall tie replacement, sock and ground anchors, screw pile installation, and concrete repairs.…
Serves homeowners and businesses in Cornwall and Devon, with services also offered across the UK, targeting property owners needing structural repair, stabilisation and concrete repair support.
Financial Health
WeakWeak · -7% CAGR over 4y
Location
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Computed from 5 filingsProvides construction and design‑build services including petrol station and forecourt development, residential and commercial building projects, groundworks, structural works, mechanical and…
Serves petrol forecourt operators, commercial and retail property clients, developers, and high-end residential homeowners across the UK seeking construction, fit-out, maintenance or consultancy…
Financial Health
StrongStrong · Growing, Hiring · 57% CAGR over 4y
Location
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Computed from 5 filingsProvides energy efficiency and property improvement works, including installation of external wall, loft, cavity and party wall insulation, rendering, heating systems and air source heat pumps, plus…
Targets homeowners using ECO grant funding, private landlords, property managers of low- to high-rise flats, and social housing or regeneration providers, with some business property customers.
Financial Health
StrongStrong · Growing, Hiring · 68% CAGR over 4y
Location
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Computed from 5 filingsProvides industrial and architectural metalwork services including steel fabrication, sheet metalwork, structural steel, bespoke stairs and balustrades, external access structures, and water‑jet cut…
Serves B2B clients in construction, refurbishment and industrial sectors, including contractors, project managers and organisations needing architectural or structural metalwork for building projects…
Financial Health
WeakWeak · -3% CAGR over 4y
Location
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Computed from 5 filingsProvides mechanical, electrical and HVAC services including air conditioning installation and maintenance, commercial and domestic plumbing, gas engineering, electrical installations and rewiring,…
Serves homeowners, landlords and businesses of all sizes across Plymouth and the South West, with emphasis on commercial and industrial customers needing mechanical, electrical, air conditioning and…
Financial Health
StableStable · Hiring · 14% CAGR over 4y
Location
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Computed from 5 filingsProvides structural steel fabrication, on-site welding, and steel erection services for construction projects. Manufactures and installs steel components such as frames, staircases, fencing and…
Serves B2B construction contractors, property developers and commercial or industrial project owners needing structural steel packages across Ireland and the UK.
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
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Computed from 5 filingsProvides plastering and rendering services for residential, commercial and new build projects, including internal plastering, external render systems, dry lining, floor screeding, external and…
Serves homeowners, private clients, commercial property owners and new-build developers across North Devon and the South West, including single-property projects and larger developments of 100+ units.
Financial Health
HealthyHealthy
Location
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Computed from 5 filingsProvides commercial and industrial electrical services including installation, repair and maintenance. Offers EICR fixed‑wire testing, portable appliance testing, emergency lighting installation, EV…
Serves B2B clients in London and the Home Counties, including hospitality, retail, healthcare and education organisations, as well as workplaces and facilities needing compliant electrical support.
Financial Health
HealthyHealthy · -2% CAGR over 4y
Location
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Computed from 5 filingsDesigns, manufactures and installs bespoke timber frame structures and provides residential and commercial construction services, including property development, design‑and‑build projects, building…
Serves homeowners, businesses, property developers and owners of heritage or listed buildings in Somerset and the Southwest seeking construction, development or timber-frame project support.
Financial Health
DistressedDistressed · 0% CAGR over 4y
Location
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Computed from 4 filingsDesigns, manufactures, installs and repairs roller shutter doors, steel security doors and industrial door systems for commercial and domestic properties. Also supplies sectional and fast‑action…
Serves homeowners, businesses and industrial property operators in Birmingham and the West Midlands needing secure access solutions for premises, sites, loading areas and commercial buildings.
Financial Health
HealthyHealthy · Hiring · 5% CAGR over 3y
Location
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Computed from 3 filingsProvides surfacing and groundwork services including installation and repair of tarmac driveways, roads, footpaths and dropped kerbs. Also constructs and maintains car parks, pavements and playground…
Serves domestic homeowners, local businesses, schools, hospitals, supermarkets and councils across Bristol, Bath, Somerset, Wiltshire and South Wales.
Financial Health
StableStable · 0% CAGR over 2y
Location
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Computed from 4 filingsProvides lighting design services for roadways and developments, producing layout drawings, lighting and electrical calculations, ducting layouts, equipment specifications, cable network and feeder…
Serves property developers, construction contractors and road/adoptable highway project teams needing street and area lighting design, mainly in Northern Ireland.
Financial Health
DistressedDistressed · -11% CAGR over 3y
Location
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Computed from 5 filingsProvides scaffolding services for residential, commercial and construction projects, including access and new‑build scaffolding, shoring systems, and temporary structures. Also offers scaffolding…
Serves homeowners, property developers, construction contractors and commercial or industrial site managers in London and surrounding areas with project access needs for builds, conversions,…
Financial Health
WeakWeak · Hiring · 19% CAGR over 4y
Location
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Computed from 3 filingsProvides demolition services for domestic, commercial, industrial and agricultural structures. Also offers asbestos removal and disposal, site clearance, scrap metal collection, and recycling of…
Serves domestic, commercial, industrial and agricultural customers needing demolition, asbestos removal, site clearance and scrap metal collection, with a stated focus on clients across Dorset,…
Financial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
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Computed from 5 filingsProvides facilities management and building maintenance services for domestic and commercial properties, including HVAC servicing, electrical work, gas and plumbing, drainage, fire and security…
Serves commercial property managers, businesses and domestic homeowners in London, Kent and surrounding areas, including offices, pubs, medical centres, supermarkets, blocks of flats, homes and…
Financial Health
StrongStrong · Growing, Hiring · 25% CAGR over 5y
Location
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Computed from 5 filingsProvides ready-mix concrete, screed and construction aggregates for building projects. Offers concrete pumping, collect-and-go collection, road haulage for aggregates and cement, groundworks…
Serves commercial contractors, groundworks firms, builders and residential customers in London needing concrete, screed, aggregates, pumping, haulage and site cleaning for construction projects.
Financial Health
StrongStrong
Location
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Computed from 5 filingsDevelops and builds residential housing developments for sale. Provides construction services including plant and construction works, vibro stone piling and ground improvement, and street lighting…
Serves private homebuyers seeking new-build luxury homes in Northern Ireland, alongside construction-sector clients needing plant, ground improvement or lighting services across the UK and Ireland.
Financial Health
StrongStrong · Growing, Hiring · 53% CAGR over 4y
Location
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Computed from 5 filingsProvides scaffolding services for domestic, commercial and industrial construction projects, including scaffold design, supply and erection. Installs structures such as towers, temporary roofs,…
Serves homeowners, builders, tradespeople and commercial or industrial clients across South Wales needing access support for domestic repairs, new builds, refurbishments, extensions, chimneys,…
Financial Health
HealthyHealthy · -14% CAGR over 4y
Location
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Computed from 5 filingsProvides groundworks, civil engineering and demolition services for residential and commercial construction projects. Also offers plant and machinery hire, site clearance, excavation, concrete works…
Serves residential clients and commercial organisations across the Midlands and wider UK, including construction sites, agricultural growers, utilities and leisure sites.
Financial Health
StableStable · 0% CAGR over 4y
Location
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Computed from 5 filingsProvides groundwork and demolition services for construction projects, including grab hire, muck away waste removal, site clearance, roll-on roll-off skip hire, and supply of aggregates such as…
Serves businesses and consumers in Hertfordshire and Bedfordshire, including building contractors, developers, landscapers and property owners with construction, demolition, clearance and aggregate…
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
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Computed from 3 filingsProvides structural and architectural metal fabrication services, producing stainless steel, mild steel and aluminium components such as balustrades, handrails, gates and steel structures. Offers…
Serves construction-sector clients nationwide, including contractors, developers, architects, structural engineers, industrial firms and residential or commercial property owners needing bespoke…
Financial Health
StableStable · -42% CAGR over 2y
Location
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Computed from 3 filingsSupplies and installs made‑to‑measure steel and aluminium doors, windows and industrial access systems for commercial and residential buildings. Also provides roller shutters, automatic doors, entry…
Sells mainly to trade customers and businesses across the UK, particularly commercial and industrial building operators, contractors and house builders needing doors, shutters, windows and access…
Financial Health
StableStable · Hiring · 26% CAGR over 2y
Location
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Computed from 5 filingsProvides roofing installation, repair and maintenance for residential, commercial and industrial properties. Works on pitched and flat roofs including felt and GRP systems, and offers guttering,…
Serves homeowners, landlords, and commercial or industrial property owners in Wellington, Somerset and within a 40-mile radius.
Financial Health
StableStable · Hiring · 50% CAGR over 4y
Location
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Computed from 5 filingsProvides chartered surveying and construction consultancy services, including Level 2 and Level 3 residential home surveys, building and quantity surveying, party wall and stock condition surveys,…
Serves a mix of consumers and businesses: residential homebuyers in England and Wales, and commercial construction, property and infrastructure organisations managing distributed projects.
Financial Health
WeakWeak · -61% CAGR over 4y
Location
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Computed from 5 filingsProvides roofing services for residential and commercial properties, including slate and tiled roof installation, flat roofing systems, roof repairs, and gutter replacement or relining, as well as…
Serves homeowners and heritage property owners, plus businesses, housing associations and property managers with commercial buildings across the West of Scotland.
Financial Health
StableStable · Hiring · 5% CAGR over 4y
Location
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Computed from 5 filingsInstalls home energy efficiency measures under government schemes, including cavity wall, solid wall, loft and underfloor insulation, boilers, first-time central heating systems, heat pumps, solar…
Serves UK households, particularly vulnerable or grant-eligible homeowners and tenants seeking ECO4/GBIS-funded energy-efficiency home improvements and lower energy bills.
Financial Health
StableStable · Hiring · 5% CAGR over 4y
Location
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Computed from 5 filingsProvides flat roofing installation and repair services for residential and commercial buildings, including single‑ply membranes, liquid applied waterproofing, green roofs and metal roofing. Also…
Serves commercial and residential property owners, developers and construction clients on new builds, renovations and repair projects across Cumbria, Lancashire, Northumberland and Southern Scotland.
Financial Health
StableStable · -3% CAGR over 4y
Location
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Computed from 4 filingsProvides groundworks and civil engineering services for commercial and residential construction projects, including housing development preparation, highways and infrastructure works, drainage…
Serves commercial developers, contractors, highways and infrastructure clients, and domestic homeowners needing groundworks support in Bridgwater and surrounding Somerset areas.
Financial Health
WeakWeak · Hiring · 26% CAGR over 3y
Location
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Computed from 3 filingsProvides brick cutting and masonry fabrication services for construction and landscaping projects. Produces bespoke brick arches, brick specials and slip panels, and offers cutting, bonding,…
Sells to B2B customers in the building, engineering and landscaping sectors, including construction firms, contractors and trade buyers needing brick, block, stone and slab products for project-based…
Financial Health
DistressedDistressed · 2% CAGR over 2y
Location
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Computed from 4 filingsProvides exterior rendering and insulation services for residential, commercial, and social housing buildings. Installs external wall insulation, cavity wall insulation, and render finishes such as…
Serves homeowners, private landlords, commercial property owners and social housing providers in Liverpool, the North West and North Wales seeking rendering and wall insulation for residential and…
Financial Health
StrongStrong · Growing · 0% CAGR over 3y
Location
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How iThemes 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. construction 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 construction 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.
iThemes 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
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