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Construction Companies in Portsmouth: 2,731 Active Firms (2026)
Construction companies in Portsmouth build, refurbish and maintain residential, commercial and infrastructure assets across the city-region.
Buying centres in this market sit with local developers, property owners, housing providers, commercial occupiers and public-sector estates teams, rather than a single procurement route. Work tends to be package-led: main contracting, refurbishment, fit-out, maintenance and civil engineering delivered through site teams and subcontractor coordination. The better fit is usually lower-mid-market or mid-market operators able to price, programme and supervise local projects, rather than sole-trader trades or national infrastructure groups. Engagements are typically regional, relationship-driven and compliance-heavy, with repeat work depending on delivery record, payment discipline and the ability to manage risk across multiple parties on site.
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Portsmouth’s construction cohort contains 2,731 actively trading firms, making it a sizeable local contractor base rather than a small specialist cluster. Reported employment totals 1,449 people across companies that publish headcount, so the footprint visible in payroll terms is narrower than the company count implies. That pattern is consistent with a market containing many small trade and project businesses, alongside a thinner layer of employers with staffed delivery, estimating, commercial and compliance functions. Within the same cohort, 40 firms report turnover above £5M, which gives the list a modest mid-market core beneath the wider long tail.
Several rulebooks matter before a Portsmouth contractor wins or delivers work. HSE’s Construction (Design and Management) Regulations set duties around planning, appointing suitable people, coordinating work and consulting workers, so compliance sits with clients, designers and contractors rather than only the site manager. HMRC’s Construction Industry Scheme shapes subcontractor payment flows, with contractors required to register and make deductions where needed. Construction products sit with the Office for Product Safety and Standards, while building-safety issues bring in the Building Safety Regulator within HSE. The result is a fragmented regime, but one with practical consequences for procurement, cash flow and site governance.
Change appears likely to be uneven. Portsmouth has a broad contractor base, but many operators tend to remain local, project-led and owner-managed, with limited appetite for expansion beyond familiar client relationships. The scarcer scale-up layer should keep attracting attention from buyers that want delivery capacity, framework access or specialist subcontractor relationships, although payment risk and compliance cost may keep margins under pressure. Public-sector and regulated-asset work has been moving procurement towards more formal assurance, which may favour firms with documented processes. Smaller contractors can still compete, but they are likely to face more administrative burden around safety, products and subcontractor management.
2,731
Active firms
2026
40
£5M+ firms
over £5M turnover
600
Recent incorporations
incorporated since 2022
Key facts
About 1% of the trading cohort reports turnover above £5M (40 of 2,731 firms) — the rest sits below that revenue band.
21% of the cohort was incorporated since 2022 (600 firms), so a sizeable share is in its first few filing cycles.
HSE’s CDM Regulations 2015 set duty-holder responsibilities for planning, appointing suitable people, coordinating work and consulting workers.
HMRC’s Construction Industry Scheme requires contractors to deduct money from subcontractor payments and pass it to HMRC; unregistered subcontractors face higher deductions.
OPSS is the UK regulator for construction products and works with the Building Safety Regulator within HSE on building-safety-related issues.
ONS put Great Britain construction new work at £140.7 billion in 2024, up 1.4%, while new orders reached £71.7 billion, up 5.6%.
Eurostat estimated construction production in August 2024 down 2.5% year on year in the euro area and 2.4% in the EU, so UK current-price growth should not be read as a like-for-like volume comparison.
Top Portsmouth Construction companies
Northport Construction Services Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides construction, design-and-build, refurbishment and maintenance services for public and commercial clients. Works on defence facilities, healthcare buildings, heritage structures, housing and…
Serves public-sector bodies and major organisations, including NHS trusts, the Armed Forces, local authorities and developers, plus clients in heritage, energy, housing and infrastructure sectors.
Financial Health
WeakWeak · Hiring · 10% CAGR over 3y
Location
PMC Construction
Provides construction and development services for residential and commercial projects, including affordable housing and mixed-use schemes. Designs and builds community developments using in-house…
Serves local councils, housing associations/registered providers, property developers and asset managers commissioning affordable residential and commercial community developments across Portsmouth…
Financial Health
Insufficient historyInsufficient history
Location
MOUNTJOY LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides construction, refurbishment, housing maintenance and facilities management services. Delivers new-build and extension projects, property renovations, responsive repairs, gas servicing, and…
Serves public and private sector clients across southern England, including housing associations, local authorities, schools, academies, colleges, universities, health and care providers, leisure and…
Financial Health
HealthyHealthy · Profitable, Growing, Hiring · 3% CAGR over 4y
Location
VALE SOUTHERN CONSTRUCTION LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides main contractor construction services for private and public sector projects, including new-build developments and refurbishments. Works on residential housing, hotels, commercial,…
Serves private developers, investors and commercial clients, plus public sector bodies across the South, including schools, healthcare providers, community organisations and local authorities.
Financial Health
StableStable · -68% CAGR over 4y
Location
Bryburn Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides construction and engineering services including interior fit-out, civil engineering works, fire protection system installation, defence sector projects, and property maintenance and building…
Serves B2B and public-sector customers in the construction, defence and property sectors, including organisations commissioning fit-out, civils, fire protection and property works.
Financial Health
StableStable · 0% CAGR over 3y
Location
PURE CONSTRUCTION (SOUTHERN) LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides building and construction services for residential, commercial and industrial projects, including new builds, property refurbishment, disabled adaptations, commercial decorating, and…
Serves both B2B and B2C customers, including homeowners, landlords and property developers, plus businesses, schools, health and care providers, housing organisations, leisure venues and local…
Financial Health
StrongStrong · Growing, Hiring · 13% CAGR over 4y
Location
REDS BUILDERS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides construction services for commercial and domestic clients, including groundworks and civil engineering, commercial refurbishment, responsive property maintenance, CCTV drainage inspections…
Serves businesses, public sector organisations such as local authorities, and domestic homeowners, including customers in commercial property, housing services and residential projects.
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
We Are Primus Ltd
Trajectory
1y · 2025–NowProvides construction and engineering services including electrical and mechanical installations, renewable energy systems, civil works, building fit‑outs and fabric repairs. Also offers project…
Serves business and institutional buyers needing construction and engineering work, including project managers and energy or sustainability teams commissioning electrical, mechanical, renewables,…
Financial Health
Insufficient historyInsufficient history
Location
Luthan Property Services Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides construction and building services including interior fit‑out, civil engineering works, fire protection system installation, defence sector projects, and property maintenance. Delivers…
Financial Health
StrongStrong
Location
GMP General Maintenance Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides building and property maintenance services for residential and commercial properties, including refurbishments, carpentry, brickwork, painting and decorating, kitchen and bathroom…
Serves homeowners, residential property owners, landlords and commercial premises managers in Portsmouth, Southsea and surrounding Hampshire areas.
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
NJR INTERIOR SYSTEMS LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides commercial interior fit‑out and refurbishment services including ceiling installation, plastering, tape and jointing, carpentry, and installation of solid and glazed partitions. Also…
Serves local businesses and public-sector sites, including offices, healthcare and food preparation facilities, army barracks, naval bases, air force hangars and police stations needing interior…
Financial Health
HealthyHealthy · Hiring · 32% CAGR over 4y
Location
D N Associates Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides building and civil engineering services, including construction of homes and offices, housing developments, property extensions, and interior and exterior renovation for residential and…
Serves homeowners, businesses and property developers on the Isle of Wight and south coast, covering clients from domestic extensions to larger housing estate and office projects.
Financial Health
HealthyHealthy · -25% CAGR over 2y
Location
T COLEBORN AND SON LIMITED
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsProvides building and construction services for commercial and domestic clients, including structural refurbishment, carpentry, brickwork, plastering, roofing, flooring, and mechanical and electrical…
Serves a mix of commercial, public-sector, charity and domestic customers around Portsmouth, including healthcare and education estates, sheltered housing providers, historic/listed building owners…
Financial Health
StableStable · 3% CAGR over 3y
Location
Leaves Building & Maintenance Contractors Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides property construction, refurbishment and maintenance services including reactive repairs, building renovation, fit-out, groundworks, landscaping and heritage restoration for housing…
Serves housing providers, local authorities, commercial property clients, schools, universities, care and hospital operators, and government/public sector bodies across the South East, plus some…
Financial Health
StrongStrong · Growing, Hiring · 16% CAGR over 4y
Location
CDM DECORATING & INTERIORS LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides building refurbishment and maintenance services including interior decoration, passive fire protection, electrical and fire alarm installation, insurance reinstatement works, and commercial…
Serves commercial, public-sector and institutional clients, including healthcare, leisure, residential property and insurance sectors, across Hampshire, Surrey, London, Sussex, Dorset and Berkshire.
Financial Health
StrongStrong · Hiring · 63% CAGR over 4y
Location
GARNEAD LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides piling and civil engineering services including close proximity CFA piling, basement construction, retaining and king post walls, reinforced concrete works, and coastal and marina structures…
Serves B2B and public-sector construction clients, including developers, main contractors and civil engineering teams needing piling, basement, retaining wall, coastal and marina works, especially…
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
BRYNWELL (SOUTHERN) LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides commercial refurbishment and fit-out services, including bespoke joinery manufactured in-house. Acts as a main contractor delivering building works, electrical and mechanical installation,…
Serves B2B clients in hospitality, leisure and commercial property, including restaurants, bars, cafes, offices, golf clubs and venues, plus some residential customers.
Financial Health
StrongStrong · Growing · 1% CAGR over 4y
Location
Halliday Projects Ltd
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides civil engineering and construction services including site enabling works, infrastructure preparation, and building works. Acts as principal contractor and offers project and construction…
Serves public and private sector construction clients across the UK, including project owners, developers and contractors requiring civil engineering, site enabling, principal contractor and project…
Financial Health
StrongStrong
Location
Hampshire Groundworks & Surfacing Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides groundwork and surfacing services for commercial and residential projects, including excavation, drainage installation, road and pavement tarmacing, block paving driveways, patios, concrete…
Serves commercial contractors, site managers and domestic homeowners needing groundwork and surfacing for projects across Hampshire, Sussex, Surrey and London.
Financial Health
WeakWeak · 0% CAGR over 2y
Location
ICE BT Ltd
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsProvides facilities management and building services including balcony refurbishment and replacement, external cladding installation, fire door supply and inspections, mezzanine construction, and…
Serves public-sector bodies, housing associations, commercial landlords, retail and industrial organisations across the South and South West of England, including managers of apartment blocks,…
Financial Health
DistressedDistressed · -31% CAGR over 3y
Location
BLUECORD ROOFING AND CLADDING LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides roofing and cladding installation for commercial and residential buildings, including single‑ply and bituminous roofing, hot‑melt waterproofing, green roofs, metal seam roofing, rooflights,…
Serves main contractors and direct clients in the commercial and residential construction sectors across the South of England, including organisations and homeowners commissioning building envelope…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
H. MONFARED (BUILDERS) LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides commercial building and refurbishment services, including alterations and fit-outs for industrial, retail and other commercial premises. Delivers construction, renovation and project work…
Serves B2B customers in the south of the UK, primarily commercial property occupiers, industrial businesses and retail operators commissioning building alterations, refurbishments and related project…
Financial Health
StableStable · -15% CAGR over 4y
Location
G & N BUILDING SERVICES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides residential and commercial building and construction services including new builds, house extensions, property refurbishment, loft conversions and shop fitting. Also carries out plumbing,…
Serves homeowners, property developers and commercial clients needing building work, refurbishment or shop fitting across Portsmouth, Hampshire and West Sussex.
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
CDM CONTRACTORS GROUP LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides construction and property contracting services including project management, refurbishment, restoration and decoration. Offers passive fire protection, electrical and fire alarm…
Serves B2B and public-sector clients in the South of England, including commercial property owners, landlords, insurers, healthcare, leisure and community facilities, and organisations managing…
Financial Health
StrongStrong · Hiring · 9% CAGR over 4y
Location
THE COMPLETE PROPERTY GROUP (SOUTH) LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides building maintenance, refurbishment and construction services for commercial and residential properties. Services include reactive repairs, roofing, damp and mould treatment, kitchens and…
Serves commercial property owners and managers, leisure and retail businesses, residential homeowners, and block management companies in Hampshire and London.
Financial Health
WeakWeak · Hiring · 20% CAGR over 2y
Location
Hampshire Plumbing & Heating Solutions Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing and heating contracting services for residential, commercial and new-build projects. Offers mechanical and electrical design, installation and renovation, including underfloor…
Serves B2B property developers, contractors and facilities owners across private and social housing, offices, refurbishment, leisure, industrial, medical and retail premises, alongside domestic…
Financial Health
StrongStrong · Growing, Hiring · 20% CAGR over 4y
Location
LEGACY GLM GROUP LIMITED
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsProvides commercial property services including fire door installation and fire stopping, reactive and planned building maintenance, groundworks and landscaping, and refurbishment, dilapidation and…
Sells to commercial property stakeholders, especially FM providers, managing agents and estate teams, across commercial, industrial, education, healthcare and public sector buildings. Targets…
Financial Health
StableStable · -40% CAGR over 1y
Location
View Interiors Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides interior construction and refurbishment services for commercial and leisure buildings, including structural works, extensions, flooring installation, custom joinery, and plumbing, heating…
Serves B2B clients in leisure and commercial property sectors, including businesses expanding premises or creating bespoke facilities, plus architects and design teams across southern England, the…
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 5y
Location
Empire Contractors Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides building and construction services focused on houses in multiple occupation (HMO) developments, including property conversions and refurbishments, extensions, loft conversions, kitchens and…
Serves property developers, investors and landlords seeking HMO and residential construction across Hampshire, plus local homeowners needing renovations, extensions and conversions.
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
Agincourt Contractors Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides construction and building contractor services for commercial and residential projects, including new builds, extensions, refurbishments, and design-and-build work. Manages projects from…
Serves homeowners, residential property owners, architects/design practices and commercial clients seeking building contractors for new builds, extensions and refurbishments, including historic and…
Financial Health
HealthyHealthy · Growing, Hiring · 4% CAGR over 4y
Location
Southern Flat & Pitched Roofing Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides roofing contracting services for commercial and residential buildings, including installation and repair of flat and pitched roofs, tiling and slating, timber shingles, felt and single‑ply…
Serves residential homeowners and commercial property clients across the South Coast of England and London, including heritage, leisure and education sector organisations needing flat or pitched…
Financial Health
HealthyHealthy · -23% CAGR over 2y
Location
Hampshire Brickwork Solutions Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides bricklaying and masonry contracting services for residential, commercial and public sector construction projects. Works include heritage and listed building restoration, high-end residential…
Serves property developers, main contractors and public sector organisations, including heritage estates, high-end residential developments, schools, universities, hospitals, emergency services…
Financial Health
HealthyHealthy · -18% CAGR over 2y
Location
Spraywall Interiors Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides commercial interior construction finishing services, including airless spray plastering, hand and machine plastering, dry lining, screeds, external through-coloured rendering, and Metsec/SFS…
Serves main contractors, commercial developers and public-sector project teams on UK construction and refurbishment projects, including hotels, education facilities, cultural venues, transport sites…
Financial Health
HealthyHealthy · Hiring · 44% CAGR over 3y
Location
BRICKTEX SOUTHERN LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides bricklaying and blockwork services for construction projects. Supplies bricklayers and labour for large-scale building developments and residential work including house extensions,…
Serves a mix of B2B construction contractors and property developers on large South Coast building projects, plus residential clients needing house extensions, structural alterations and smaller…
Financial Health
DistressedDistressed · -93% CAGR over 2y
Location
RDL Commercial Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides commercial interior fit-out services including dry lining, partition wall installation, suspended ceilings, plastering and tape and jointing, painting and decorating, and fire stopping…
Serves B2B construction clients, including building contractors, property managers, renovators and project teams involved in commercial interior fit-out projects.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 2y
Location
Harvil Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides construction finishing services including dry lining, partition wall installation, plastering, and floor screeding for commercial and residential building projects, working on large…
Serves UK construction clients in the commercial and residential sectors, from large infrastructure projects to small-scale developments, including developers, main contractors and project owners…
Financial Health
DistressedDistressed · 0% CAGR over 4y
Location
Paul's Property Services Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides residential building and property improvement services, including home extensions, renovations, garage conversions, kitchen installations, repointing, driveways, patios, fencing, and general…
Serves homeowners and residential property owners in Totton and the Southampton area planning home improvement, conversion, renovation or outdoor property projects.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
A INTERIOR SYSTEMS LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides construction contracting services including building works, interior systems installation, demolition, and dumpster services for construction projects, working with commercial building…
Serves building owners, contractors and architects, with stated experience across both large and small client projects.
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
Parchow Groundworks Limited
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsProvides groundwork and civil engineering services for construction projects, including foundations and concreting, drainage installation, formwork, and hard landscaping. Works on projects such as…
Serves local authorities, public-sector sites such as schools, hospitals and universities, Environment Agency framework contractors, homeowners and large commercial businesses with construction,…
Financial Health
StableStable · 0% CAGR over 3y
Location
BQS Management Services Ltd
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides civil engineering services focused on highway infrastructure, including road and footway construction, deep drainage systems with oil and fuel interception, kerb and edging installation,…
Serves public-sector highways authorities, local councils and infrastructure or commercial site owners needing contractors for roads, footways, drainage, car parks, depots and related highway works.
Financial Health
StrongStrong
Location
Dorelbury Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides building and construction services including new build, refurbishment and maintenance projects for public sector bodies, developers and private clients. Works on schools, healthcare…
Serves local councils, government authorities, developers and private clients in Hampshire, with customers across education, healthcare, commercial and industrial, retail, leisure and residential…
Financial Health
HealthyHealthy · -8% CAGR over 4y
Location
Dm Habens (The Builder) Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides construction and building refurbishment services, including joinery, landscaping, project management and quantity surveying. Works on projects such as schools, hospitals, housing and public…
Serves public sector bodies and commercial clients across the South of England, including county councils, local authorities, the NHS, schools, colleges, hospitals, churches, housing providers, and…
Financial Health
StrongStrong · Growing, Hiring · 8% CAGR over 4y
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
Viking Projects (UK) Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides groundworks and civil engineering services for residential and commercial developments, including earthworks, road and sewer installation, highways construction, and site preparation for…
Serves housebuilders, property developers and main building contractors on residential and commercial development projects, from individual plots to large housing schemes, within a 70-mile radius of…
Financial Health
StrongStrong · Growing, Hiring · 14% CAGR over 4y
Location
C&G Building Contractors (UK) Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides building contracting services including new build construction, conversions, refurbishments and extensions. Undertakes shell builds, groundwork, brickwork and structural works for commercial…
Serves commercial clients, public sector organisations, architects/design teams, residential developers and private homeowners in Hampshire and West Sussex.
Financial Health
WeakWeak · 0% CAGR over 4y
Location
PAVENET LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides civil engineering and infrastructure services including highway construction and maintenance, groundworks, road and footway surfacing, and vacuum excavation. Supports transport and…
Serves B2B and public-sector clients involved in highways, infrastructure and development projects, including developers, transport schemes and civil engineering contractors across Hampshire,…
Financial Health
StableStable · -13% CAGR over 4y
Location
JIGSAW CONSTRUCTION SOUTHERN LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides construction services including new-build residential properties, commercial and industrial building projects, design-and-build contracting, and property maintenance. Works on facilities…
Serves domestic clients, commercial and industrial organisations, marine-sector customers, and public-sector or institutional sites such as schools, universities, medical centres and MOD bases across…
Financial Health
StrongStrong · Hiring · 7% CAGR over 4y
Location
SGC PROJECTS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides design and build construction services for building and civil engineering projects. Produces concepts, drawings and construction plans, manages project delivery as principal contractor, and…
Serves commercial and industrial property owners, developers and landowners in Hampshire, including clients with factories, warehouses, industrial sites, small housing developments, and building or…
Financial Health
WeakWeak · -66% CAGR over 4y
Location
C&L Management LLP
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides construction services including design and planning, project management, carpentry and joinery, building construction and refurbishment of domestic and commercial properties, and planned and…
Serves public and private sector clients across the south coast, including individual homeowners, local businesses and national companies with domestic and commercial property needs.
Financial Health
WeakWeak · 0% CAGR over 1y
Location
Litten Group Ltd
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides residential and commercial property services including building and refurbishment projects, architectural and engineering design, surveys, and property maintenance such as plumbing repairs,…
Serves homeowners, landlords, letting agents and commercial property owners needing building, design or maintenance support across Portsmouth, Southampton, Chichester and Petersfield.
Financial Health
StableStable
Location
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How Portsmouth Construction companies work and how to sell to them
What they do
Portsmouth construction contractors usually earn revenue through project contracts rather than recurring subscription models. Income comes from lump-sum tenders, measured works, schedule-of-rates jobs, maintenance call-offs and negotiated packages, with margin made on labour planning, subcontractor management, materials procurement and site supervision. Some firms carry a main-contractor role, taking responsibility for programme, safety, commercial control and client reporting; others specialise in packages such as fit-out, refurbishment, civils, building fabric or planned maintenance. Payment is typically staged against valuations, milestones or completed works, so cash collection, retentions and variation control matter as much as headline contract value.
Who they sell to
Most sell to local and regional buyers that need delivery certainty more than broad national coverage: developers, landlords, managing agents, housing providers, schools, councils, NHS estates teams, port and transport-related asset owners, and commercial occupiers. Decision-makers typically include estates directors, project managers, quantity surveyors, procurement leads, facilities managers and owner-directors on smaller client-side teams. Lower-value work is often won through repeat relationships, referrals and approved-contractor lists, while larger or public-sector jobs tend to involve formal tendering, framework rules, method statements, insurance checks and evidence of health and safety competence. Sales cycles vary with urgency, planning status and funding approval.
What they buy
Most construction firms tend to spend on tools and services that reduce leakage between estimate, site delivery and invoice. Common categories include estimating and take-off software, job costing, project management, document control, health and safety systems, subcontractor onboarding, workforce scheduling, timesheets, fleet and plant management, finance, payroll and Construction Industry Scheme administration. Professional services also matter: insurance broking, accountancy, contract review, employment law, bid writing, recruitment and training. Firms with public-sector or regulated-asset work may also buy audit support, policy documentation and quality-management advice, especially where procurement teams expect evidence packs rather than informal assurances.
Why and how to sell to them
Construction buyers tend to evaluate suppliers when workload, compliance burden or cash pressure exposes a weak process. Useful triggers include new framework places, a run of project-manager or estimator hiring, expansion into public-sector work, a recent incorporation since 2022 that needs operating basics, or a move from owner-managed jobs into multi-site delivery. Pain points are usually practical: delayed payment, variation disputes, subcontractor reliability, safety paperwork, document control, material price exposure and thin commercial visibility while projects are live. Outbound messages work better when they attach to those moments, using proof around fewer admin hours, cleaner handovers, faster valuations or lower compliance risk.
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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