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Construction Companies in the UK: 243,000+ Active Firms (2026)
Construction companies in the UK build, refurbish and maintain residential, commercial and infrastructure assets under CDM, CIS and product-safety rules.
Buying centres tend to sit with developers, asset owners, housing associations, facilities teams and public-sector procurement, with delivery controlled by quantity surveyors, project managers and site managers. Work is bought through tenders, frameworks and subcontract packages rather than repeat licence-style spending. Engagements range from small refurbishment and maintenance jobs to multi-trade commercial fit-outs, civil engineering packages and longer infrastructure programmes. The sales problem is often less about supplier preference than evidencing safety competence, labour availability, insurance cover, creditworthiness and the ability to coordinate subcontractors without derailing the programme.
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243,616 construction companies are actively trading in the UK, making this a wide contractor universe rather than a narrow set of national main contractors. A small revenue-qualified layer is visible above £5M turnover, with 4,678 operators in that band, while 57,541 were incorporated since 2022. Reported headcount totals 11,410 among firms that publish employee numbers. The shape is consistent with a market where many incorporated specialists sit alongside a smaller set of delivery businesses carrying payroll, insurance and project-balance-sheet risk.
UK construction sits across several rulebooks rather than a single sector licence. HSE’s Construction (Design and Management) Regulations place duties on clients, designers and contractors to plan work, appoint competent people, coordinate risks and consult workers. HMRC’s Construction Industry Scheme changes cash-flow behaviour by requiring contractors to deduct money from subcontractor payments and pass it to HMRC, with higher deductions where subcontractors are not registered. Construction products bring in the Office for Product Safety and Standards, which works with the Building Safety Regulator within HSE on building-safety-related issues.
Pressure on margins appears likely to keep the cohort fragmented. Small specialists tend to remain project-led, with growth constrained by working-capital cycles, labour availability and the need to evidence safety systems before taking larger packages. Better-capitalised contractors may keep using subcontract networks rather than adding permanent headcount, particularly where demand is uneven across private development, maintenance and public works. Product-safety scrutiny and building-safety duties should favour operators that can document procurement routes and site controls. Consolidation has been selective rather than broad-based, so the market is likely to retain a long tail of local and specialist firms.
243,616
Active firms
2026
4,678
Over £5M turnover
Trading companies
57,541
Recent incorporations
Since 2022
Key facts
About 1% of the trading cohort reports turnover above £5M (4,678 of 243,616 firms) — the rest sits below that revenue band.
23% of the cohort was incorporated since 2022 (57,541 firms), so a sizeable share is in its first few filing cycles.
ONS construction statistics for Great Britain put new work at £140.7 billion in 2024, with new orders of £71.7 billion.
HSE’s Construction (Design and Management) Regulations 2015 set duties across clients, designers and contractors, including planning, coordination and worker consultation.
HMRC’s Construction Industry Scheme requires contractors to deduct money from subcontractor payments and pass it to HMRC, with higher deductions for unregistered subcontractors.
OPSS regulates construction products and works with the Building Safety Regulator within HSE on building-safety-related issues.
Eurostat estimated construction production in August 2024 was down by 2.5% year on year in the euro area and down by 2.4% in the EU.
Top UK construction companies
WARDEN CONSTRUCTION GROUP LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides construction services for industrial, commercial and public sector buildings, including new-build projects, design and build, refurbishment, fire safety remediation, decarbonisation…
Serves public sector bodies and private-sector clients in commercial and industrial, education, healthcare, heritage, office, specialist residential, and sports and leisure sectors, including…
Financial Health
StrongStrong · Hiring · 41% CAGR over 2y
Location
VCMP UK LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides construction and civil engineering services for building and infrastructure projects. Delivers major projects and specialist works including ground engineering, structural works, nuclear…
Serves UK public-sector bodies, local authorities, healthcare organisations and large private-sector clients commissioning major building, civil engineering and infrastructure projects, plus local…
Financial Health
WeakWeak · Hiring · 15% CAGR over 1y
Location
KORI CONSTRUCTION LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides main contracting and design-and-build construction services for commercial and residential developments, delivering projects typically valued between £5m and £25m for property developers,…
Serves property developers, building occupiers and funders across the UK, particularly organisations commissioning mid-sized commercial or care-sector construction projects valued around £5m–£25m.
Financial Health
StrongStrong · Profitable, Growing, Hiring · 26% CAGR over 2y
Location
WILLIAM BIRCH HOLDINGS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides construction contracting services including new build projects, refurbishment, historic building restoration and planned maintenance. Delivers building works for education, healthcare,…
Serves public-sector bodies, education and healthcare institutions, heritage and faith organisations, and commercial, retail, leisure, industrial and residential property clients.
Financial Health
StableStable · -68% CAGR over 4y
Location
Read Construction UK Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides construction contracting services for public and private sector building projects, delivering design-and-build and construct-only schemes. Manages project planning, pre‑construction…
Serves public and private sector clients commissioning £500k-£30m+ construction projects, including education, healthcare, leisure and commercial estates teams across North and Mid Wales, the North…
Financial Health
StrongStrong · Profitable, Growing, Hiring · 6% CAGR over 3y
Location
MGBC LTD
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides construction contracting services including enabling and temporary works, demolition and alterations, piling and groundworks, basement construction, and reinforced concrete frame structures,…
Serves main contractors and property developers on residential and commercial construction projects across London and the South East, including complex basement, high-rise and redevelopment schemes.
Financial Health
StrongStrong · Profitable, Growing, Hiring · 71% CAGR over 1y
Location
KIERNAN CONSTRUCTION LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides construction and civil engineering contracting services, including demolition, site clearance, groundworks, drainage installation, external works, car park construction and enabling works.…
Serves commercial and public-sector buyers across the UK, including retail operators, distribution and logistics firms, schools, hospitals and government bodies, plus main contractors on mid-sized…
Financial Health
HealthyHealthy · Profitable, Growing · 0% CAGR over 2y
Location
OWENS BUILDING & ROOFING LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides construction and building services including roofing and cladding installation, civil engineering, demolition, and refurbishment. Works on education, residential, industrial and commercial…
Serves public and private sector clients across the UK, including education providers, industrial and commercial property owners, residential developers, conservation projects, civil…
Financial Health
StrongStrong · Profitable, Growing, Hiring · 21% CAGR over 2y
Location
AMIRI CONSTRUCTION LIMITED
Trajectory
3y · 2024–NowFinancial sub-scores
Computed from 3 filingsProvides building contracting services for new build and refurbishment projects across sectors including education, residential, commercial, industrial, retail and leisure. Manages construction…
Serves public and private sector organisations across South England, including education providers, industrial estates, office and retail occupiers, leisure operators, residential developers,…
Financial Health
StrongStrong · Profitable, Hiring · 7% CAGR over 2y
Location
P. Colohan & Co. Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides groundwork and structural concrete contracting services for construction projects, including bulk excavation, basement construction, underpinning, drainage and services installation,…
Serves construction clients, developers and main contractors in London and the Home Counties, across office, residential, social housing, healthcare and leisure development projects.
Financial Health
HealthyHealthy · Profitable, Hiring · 5% CAGR over 2y
Location
Fareham Associates Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides building construction, civil engineering and maintenance services for commercial and public sector clients. Delivers new build projects, refurbishments, internal fit-outs and structural…
Serves commercial organisations and public-sector bodies, including local councils, universities, industrial sites, retail/leisure operators and corporate facilities teams.
Financial Health
HealthyHealthy · Profitable, Hiring · 9% CAGR over 2y
Location
INSIDE OUT DEVELOPMENTS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides construction contracting services including new builds, refurbishments, groundworks and civil engineering. Also delivers electrical installation, rewiring, lighting, EV charging, and…
Serves public sector and commercial clients across southern UK, including defence sites, schools, universities, NHS, emergency services, local councils, government departments, royal palaces,…
Financial Health
HealthyHealthy · -67% CAGR over 4y
Location
Modebest Builders Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides construction services specialising in groundworks, basement construction and reinforced concrete frame structures. Also manufactures and supplies precast concrete products and delivers…
Serves B2B construction clients, including property developers and main contractors, delivering packages for large residential, commercial and non-residential projects in London and the Home Counties.
Financial Health
HealthyHealthy · Growing, Hiring · 96% CAGR over 4y
Location
Heyrod Holdings Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides building and civil engineering services as a specialist subcontractor for reinforced concrete frame construction. Delivers concrete structures for commercial and infrastructure projects and…
Serves major UK construction contractors and developers delivering large building and civil engineering schemes, including national main contractors such as Morgan Sindall, Bowmer & Kirkland and Sir…
Financial Health
DistressedDistressed · -88% CAGR over 2y
Location
LANDMARK GROUNDWORKS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides civil engineering and construction services including groundworks, reinforced concrete frames, in-situ and precast concrete, basement construction, temporary and permanent works, and site…
Serves B2B property developers, house builders and construction clients in the South of England, from smaller project owners to organisations delivering major residential developments.
Financial Health
HealthyHealthy · Profitable · -3% CAGR over 2y
Location
G D Construction (St Albans) Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides main contracting services for commercial, residential, healthcare, education and heritage projects, including new build construction, refurbishment, fit-outs and planned maintenance,…
Serves commercial, residential, heritage, education, healthcare and leisure clients in London and the Home Counties, including organisations commissioning planned maintenance, refurbishments,…
Financial Health
WeakWeak · -58% CAGR over 5y
Location
MPH Construction Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides building construction, civil engineering and maintenance services for commercial and public sector clients. Delivers new build projects, refurbishments and design-and-build developments,…
Serves commercial businesses and public sector organisations needing construction, civil engineering and maintenance, including manufacturers, universities, retailers and local authorities. Targets…
Financial Health
StrongStrong · Growing, Hiring · 9% CAGR over 2y
Location
GLENCAR CONSTRUCTION LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides construction contracting services including new build, refurbishment, expansion and fit‑out of industrial and logistics facilities, data centres, commercial offices, retail and studio…
Serves UK developers, occupiers, retailers and logistics businesses, plus organisations in pharma/life sciences, data centres, commercial offices, studios, civils and urban development.
Financial Health
StrongStrong · Growing, Hiring · 48% CAGR over 4y
Location
SSG Contracts Limited
Trajectory
4y · 2019–NowFinancial sub-scores
Computed from 4 filingsProvides construction and refurbishment contracting services including turnkey building projects, civil engineering, mechanical and electrical installation, fit‑out and furniture installation, and…
Serves B2B and public-sector clients, including logistics and industrial occupiers, investors, developers, ecommerce, retail, education, transport, residential and managing-agent organisations across…
Financial Health
HealthyHealthy · Hiring · 24% CAGR over 5y
Location
ASHVALE CIVIL ENGINEERING LIMITED
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsProvides civil engineering contracting services including demolition, site clearance and remediation, groundworks, roads and sewers construction, earthworks, bulk excavation, and reinforced concrete…
Serves property developers, housebuilders, main contractors, and local and highway authorities commissioning construction, housing development and infrastructure projects within its stated 70-mile…
Financial Health
StrongStrong · Profitable, Growing · 9% CAGR over 1y
Location
E W Beard Limited
Trajectory
2y · 2025–NowFinancial sub-scores
Computed from 2 filingsProvides construction contracting services, delivering new builds, refurbishments and estate redevelopments. Works on projects including education facilities, cultural venues, sports and leisure…
Serves organisations commissioning construction projects, including education providers, sports and leisure operators, arts and culture institutions, commercial property clients and…
Financial Health
StableStable · Profitable, Hiring · 10% CAGR over 1y
Location
C.R. Reynolds Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides civil engineering, rail infrastructure, and building construction services. Delivers roadworks, bridges, regeneration and infrastructure projects under traditional, design-and-build, and…
Serves UK public sector bodies, local authorities, infrastructure owners, rail clients and commercial developers commissioning civil engineering, rail and building works contracts.
Financial Health
HealthyHealthy · Hiring · 5% CAGR over 2y
Location
Devon Contractors Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsActs as a main contractor delivering construction projects including new builds and refurbishments. Works across commercial, education, industrial, residential, healthcare and community sectors,…
Serves public and private sector clients commissioning £1m-£20m construction projects, including commercial developers, education providers, industrial firms, healthcare operators, residential…
Financial Health
HealthyHealthy · -7% CAGR over 4y
Location
WYN CONSTRUCTION LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides civil engineering and groundworks services for construction projects, including drainage systems, highways works, and landscaping and public realm development. Delivers site infrastructure…
Serves main contractors, property developers and public-sector bodies in the North of England, particularly across industrial, commercial, education, housing, highways and government construction…
Financial Health
HealthyHealthy · -2% CAGR over 2y
Location
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides construction and refurbishment services, delivering building projects across residential, healthcare, education and public sectors. Carries out retrofit, cladding and fire safety works,…
Serves B2B and public sector clients in London, including housing associations, local authorities, education and healthcare bodies, and commercial property owners needing refurbishment, retrofit,…
Financial Health
HealthyHealthy · Profitable · 1% CAGR over 1y
Location
HMH Civils Limited
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsProvides civil engineering and infrastructure construction services, including groundworks, road construction, sewer installation and external works. Delivers site preparation and supporting…
Serves B2B construction and infrastructure clients in the North East, Yorkshire and the Humber, including organisations commissioning civil engineering, groundworks, roads, sewers and external works.
Financial Health
StableStable · Profitable · -4% CAGR over 3y
Location
GEO HOULTON & SONS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides building contracting services including construction, refurbishment and maintenance of commercial, public sector and residential properties. Also undertakes property development projects and…
Serves businesses and public sector buyers needing construction and maintenance, including manufacturers, developers, schools, colleges, universities, councils, NHS trusts, housing providers,…
Financial Health
HealthyHealthy · -1% CAGR over 4y
Location
GMI Construction Group Plc
Trajectory
4y · 2019–NowFinancial sub-scores
Computed from 4 filingsProvides commercial construction and building contracting services, delivering development projects from planning through completion. Works on hotels, residential build‑to‑rent and student…
Serves property developers, public sector clients and blue-chip companies commissioning large commercial construction projects, including hotels, build-to-rent schemes, student accommodation,…
Financial Health
StrongStrong · 19% CAGR over 5y
Location
R. P. TYSON CONSTRUCTION LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides construction services for residential, affordable housing, education, healthcare and commercial developments, delivering new-build projects from concept to completion and collaborating with…
Serves B2B and public-sector clients across the North West, including housing developers, affordable housing providers, education and healthcare organisations, commercial property clients, and…
Financial Health
StrongStrong · Profitable · -6% CAGR over 2y
Location
BUXTON BUILDING CONTRACTORS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides construction services as a principal contractor, delivering refurbishment and new‑build projects. Works on schools, housing, commercial buildings, healthcare facilities, heritage properties…
Serves public and private-sector clients commissioning projects in education, commercial, health, heritage, housing and community facilities across London, the Home Counties and wider South East…
Financial Health
WeakWeak · -4% CAGR over 4y
Location
DANAHER & WALSH (CIVIL ENGINEERING) LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides civil engineering contracting services including construction, maintenance and improvement of highways, bridges, public realm and infrastructure. Delivers projects such as road schemes,…
Serves public sector bodies, Tier 1 contractors and consultancy clients in the Midlands and East of England commissioning highways, bridge, public realm and infrastructure projects.
Financial Health
HealthyHealthy · Profitable, Hiring · 5% CAGR over 2y
Location
Cawarden Co. Limited
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides specialist contracting services for construction projects including enabling works, demolition, land remediation, earthworks, civil engineering and groundworks. Also offers environmental…
Serves public and private sector organisations in the UK with construction, redevelopment and infrastructure projects, including developers, contractors, education providers and estate owners.
Financial Health
HealthyHealthy · Profitable · -5% CAGR over 1y
Location
PBS CONSTRUCTION (NORTH EAST) LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides civil engineering and construction services for commercial and public sector clients, including highways works, public realm paving, bridge construction, flood defence projects, and building…
Serves commercial organisations and public sector bodies across the north of England, particularly local authorities in Hull and East Yorkshire, plus schools and clients commissioning infrastructure…
Financial Health
HealthyHealthy · -61% CAGR over 5y
Location
Bermar Building Company Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides construction services as a contractor for public sector projects, delivering new build, refurbishment, and structural works. Projects include education facilities, healthcare buildings,…
Serves public sector clients in Yorkshire, including local authorities, government bodies, schools, healthcare organisations, housing providers, community organisations and custodians of listed…
Financial Health
HealthyHealthy · Profitable · 0% CAGR over 2y
Location
TITHEGROVE LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides groundworks and civil engineering services for construction projects, including earthworks, soil stabilisation, cut‑and‑fill operations, and infrastructure installation. Works on residential…
Serves B2B construction clients, including housebuilders, property developers and main contractors, on small to large development projects across the South West.
Financial Health
StrongStrong · Profitable · -14% CAGR over 2y
Location
TERMRIM CONSTRUCTION LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides construction contracting services including new-build residential and extra care housing developments for housing associations, and delivers new-build, refurbishment and conversion projects…
Serves housing associations, care-sector developers, commercial clients and private-sector property customers, with emphasis on social and extra-care housing schemes.
Financial Health
HealthyHealthy · Growing, Hiring · 3% CAGR over 4y
Location
FRANK ROGERS (BUILDING CONTRACTOR) LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides construction and refurbishment services for residential, commercial and public sector buildings, including new builds, repairs and maintenance, passive fire protection, fire door…
Serves public-sector and commercial property clients, including education trusts, universities, healthcare providers, social housing landlords, heritage sites, student accommodation operators, and…
Financial Health
StrongStrong · Growing · 2% CAGR over 4y
Location
LIVESEY CONTRACTING & MAINTENANCE LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides construction, design-and-build, and property maintenance services for commercial, public and residential sectors. Services include refurbishment, shopfitting, mechanical and electrical…
Serves B2B and public sector clients needing construction and maintenance, including organisations in retail, commercial property, residential, education, healthcare and local authority sectors, with…
Financial Health
StrongStrong · Profitable, Growing, Hiring · 13% CAGR over 2y
Location
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides construction contracting services for public and private sector clients, including new build projects, building refurbishment, maintenance, decoration, retrofit and decarbonisation works,…
Serves public and private sector clients in Wales, including local authorities, education providers, housing/residential stakeholders and commercial organisations procuring construction and property…
Financial Health
StableStable · -8% CAGR over 4y
Location
JEAKINS WEIR LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides construction services for education, healthcare, commercial, residential and public sector buildings. Also delivers responsive repairs and planned maintenance for councils and housing…
Sells to public sector and institutional clients, including councils, housing associations, registered social landlords, the NHS and MoD, as well as project teams commissioning education, health,…
Financial Health
WeakWeak · -73% CAGR over 4y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides building construction services including new build, refurbishment and maintenance projects. Delivers design and build schemes and small to major works for healthcare, education, residential,…
Serves public and private sector clients across central England, including NHS trusts, education authorities, academy trusts, universities, local authorities, housing associations, care providers,…
Financial Health
HealthyHealthy · Profitable · 4% CAGR over 1y
Location
HARGREAVES CONTRACTING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides construction contracting services, delivering building projects across industrial, commercial, residential, education, and FMCG sectors. Undertakes development and refurbishment works for…
Serves blue-chip businesses and public-sector organisations in FMCG, retail, healthcare and education, alongside residential and commercial property clients seeking construction contractors.
Financial Health
HealthyHealthy · -68% CAGR over 4y
Location
Brandwells Construction Company Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides building and construction contracting services, delivering new build, refurbishment and maintenance projects for public and private sector clients. Works on residential, healthcare and…
Serves public sector bodies, healthcare trusts, local authorities and private developers needing construction contractors, with historical clients including hospitals, councils and housebuilders.
Financial Health
WeakWeak · Profitable · -10% CAGR over 2y
Location
BAXALL CONSTRUCTION LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides construction services including new build, refurbishment, and project management for education, commercial, residential, healthcare, heritage, and community developments. Uses modern…
Sells to businesses, education providers and public or community-sector organisations needing construction services, particularly across commercial, residential, education, healthcare, heritage and…
Financial Health
StableStable · Profitable, Hiring · 6% CAGR over 2y
Location
KIND & CO. (BUILDERS) LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides construction and building contracting services for residential, healthcare, education, care, and commercial projects, delivering new-build and refurbishment construction works for public and…
Serves public and private sector clients in London and the South East, including residential developers, care providers, schools, healthcare organisations and commercial property clients.
Financial Health
HealthyHealthy · -2% CAGR over 2y
Location
Realtime Civil Engineering Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides groundworks and civil engineering services for construction projects, including drainage installation, substructure works, concrete frame superstructures, demolition, structural alterations,…
Serves main contractors, developers and property clients on commercial, residential, education, healthcare and private-sector construction projects, mainly in London and the Home Counties.
Financial Health
HealthyHealthy · Profitable · -18% CAGR over 2y
Location
CURO CONSTRUCTION LTD
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides construction services including new build, refurbishment and interior fit-out projects. Works across sectors such as commercial buildings, education facilities, film studios, industrial and…
Serves commercial property owners, developers and institutional clients commissioning projects in offices, education, arts and heritage, film studios, industrial facilities, data centres and…
Financial Health
StableStable · -86% CAGR over 2y
Location
MCDERMOTT BUILDING AND CIVIL ENGINEERING LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides groundworks and civil engineering services for construction projects, including site preparation, foundations, drainage, roadworks and Section 278 works. Works with developers and…
Serves major UK construction companies and main contractors delivering residential, retail, commercial, MOD, health, education, leisure, industrial and science and technology projects.
Financial Health
StableStable · -78% CAGR over 3y
Location
Sirius Civil Engineering Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides civil engineering and infrastructure works for construction and development projects, including roads and sewers, drainage systems, attenuation tanks, pumping stations, retaining structures,…
Sells to B2B clients in housing, renewables, commercial, industrial and utilities sectors, including developers and contractors needing civil engineering and infrastructure works, from early project…
Financial Health
HealthyHealthy · Profitable · -10% CAGR over 2y
Location
Darlow Lloyd (Construction) Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides civil engineering and construction services including building, refurbishment, design-and-build projects, and maintenance works. Uses in-house trades and plant to deliver infrastructure and…
Serves businesses, industrial operators and local authorities in South Wales and across the UK, including clients in steel, mines, quarries, heavy and light industrial, civil and building sectors.
Financial Health
HealthyHealthy · Profitable · -1% CAGR over 3y
Location
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How UK construction companies work and how to sell to them
What they do
Revenue usually comes from priced project delivery rather than recurring licences. Main contractors take fixed-price, design-and-build, framework call-off or cost-reimbursable work, then manage packages of labour, materials, plant and specialist subcontractors. Specialist trades tend to price by package, measured work, day rate or maintenance schedule. Cash is shaped by staged valuations, retentions, variations and payment terms, so a job that looks profitable at award can become thin if materials move, labour is delayed or scope changes are not captured. The offer is a mix of physical delivery, technical coordination and commercial risk-taking, with reputation built through programme reliability and defect control.
Who they sell to
Most construction firms sell to asset owners rather than end consumers: housebuilders, commercial landlords, industrial occupiers, local authorities, housing associations, infrastructure operators and facilities managers. Buying committees often include procurement, quantity surveying, project management, finance, health and safety, and technical design roles. Smaller jobs may be awarded through local relationships and repeat maintenance panels; larger packages usually pass through pre-qualification, tender clarification, insurance checks and contract negotiation. Sales cycles tend to follow project timetables, so timing matters. A supplier may be well liked, but still lose if it misses a framework window, cannot evidence comparable work or prices risk too cautiously.
What they buy
Most construction firms tend to spend on tools and services that reduce project leakage: estimating, take-off, job costing, document control, subcontractor management, health and safety, workforce scheduling, payroll, fleet, plant hire, procurement and finance systems. Credit control, CIS administration, insurance broking, legal support and contract claims advice also matter because cash collection and liability sit close to delivery. Larger operators may buy analytics for margin tracking across sites, while smaller contractors often prioritise bookkeeping, compliance templates, recruitment, training and mobile-first site reporting. Sellers should expect practical evaluation criteria: whether the offer fits existing workflows, reduces admin for site teams and can survive patchy adoption across subcontractor networks.
Why and how to sell to them
Construction buyers tend to evaluate suppliers when operational strain becomes visible: a larger contract win, entry onto a new framework, a failed audit, late subcontractor payments, rising defects, leadership change, insurance renewal or a move from local jobs into multi-site delivery. Outbound works better when it maps to a named commercial risk, such as margin loss through unmanaged variations, slow valuations, site documentation gaps or difficulty proving competence to clients. Generic efficiency claims usually land poorly. More credible angles quantify the cost of rework, delays, claims handling or manual administration, then show how the contractor can keep control without adding another burden for site managers.
How this list is built
Data sources
This list is built from UK Companies House filings, XBRL accounts data, and semantic analysis of each company's public website. 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.
Classification
Rather than relying solely on SIC codes, Firmbase classifies each company semantically: the company's website is crawled, an AI model reads what the company actually sells, and the company is placed into the relevant industry and subsectors. SIC codes are used as one signal but not the only one. This means a company that registered under a generic SIC code but pivoted into (for example) fintech is correctly identified as fintech, not as its original SIC category.
Freshness
The underlying company data is refreshed from Companies House continuously; filings appear in the list within days of submission. The curated list ordering is regenerated when the underlying data moves meaningfully (company count changes by more than 5%, a new company enters the top-ranked segment, or the filed-revenue numbers for the top firms change). You can see the last-updated timestamp near the top of the page.
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Frequently asked questions
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How is this list built and how fresh is the data?↓
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Are these mostly new or established construction companies?↓
What SIC codes does this use?↓
What buying signals should I look for?↓
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