Turn this list into pipeline.
Infrastructure Companies in Leeds: 400+ Active Firms (2026)
Infrastructure companies in Leeds develop, operate and maintain essential physical and digital assets across the city region.
Buying centres tend to sit with asset owners, estates and facilities teams, transport and utilities managers, and public-sector procurement functions rather than with a central technology budget. Sales motions are usually project-led: design, maintenance, inspection, civils, specialist contracting, operations support or asset finance, often tied to framework agreements and site-specific mobilisation. The customer base is mainly commercial, industrial and civic, with mid-market organisations buying alongside larger asset holders. Engagements appear to be governed by delivery capacity, safety obligations and local access to crews, plant or technical staff, so revenue can be lumpy even where the underlying service is recurring.
Read more
Leeds has 440 actively trading infrastructure companies, a broad enough base to cover asset-holding entities, engineering-led contractors and specialist service providers across the metropolitan area. Reported headcount totals 1,513 employees, which points to a market where lean operating companies sit alongside labour-intensive delivery businesses. The cohort also has a split between mature turnover-generating suppliers and newer project vehicles, although company age alone is a poor guide to delivery scale in infrastructure. Some entities can hold assets or contracts with relatively low direct employment, while others carry larger in-house teams for maintenance, site work and customer support.
Procurement and compliance matter more here than product branding. Infrastructure suppliers in Leeds tend to work through planning conditions, contract pre-qualification, health and safety duties, environmental controls and asset-owner approval processes. Public-sector work adds tender rules and audit trails, while utilities, transport and communications work often depends on access rights, service continuity obligations and evidence of competent delivery. Market structure is therefore shaped by qualification thresholds and relationship depth as much as by price. Smaller specialists can still win defined packages, but they usually need a clear role within a prime-contractor, framework or asset-owner supply chain.
Leeds infrastructure suppliers appear likely to remain a mixed cohort: asset holders with lean payrolls, contractors with visible delivery teams, and specialists attached to particular networks or property programmes. Demand tends to be steadier where maintenance and renewal budgets are embedded in essential assets, but project timing can still make revenue uneven. Consolidation may come through framework access, subcontracting depth and the need to carry compliance overhead, rather than through consumer-style brand effects. Newer entrants should find openings in narrowly defined service lines, provided they can evidence delivery competence and fit into established procurement routes.
440
Active firms
2026
41
Above £5M
revenue threshold
95
New incorporations
since 2022
Key facts
About 9% of the trading cohort reports turnover above £5M (41 of 440 firms) — the rest sits below that revenue band.
21% of the cohort was incorporated since 2022 (95 firms), so a sizeable share is in its first few filing cycles.
Leeds infrastructure suppliers tend to serve organisations that rely on physical assets, connectivity, maintenance capacity and project delivery across the city region.
Service failure or underinvestment often shows up in customer operations through delayed projects, constrained capacity, poorer connectivity and higher operating risk.
Legal entities in this segment can include operating businesses, asset vehicles, project companies and holding structures, so screening usually needs more than one proxy for scale.
Top Leeds infrastructure companies
Sapphire Utility Solutions
Provides maintenance, installation and support services for utility infrastructure, including clean water, wastewater and gas networks, telecommunications and digital networks, highways and traffic…
Serves B2B utility and infrastructure clients across the UK, including organisations in clean water, wastewater, gas, digital networks, highways, traffic management and multi-utility sectors.
Location
NG Bailey
Provides engineering and infrastructure services for buildings and utilities, including mechanical and electrical design, offsite manufacturing and installation, facilities maintenance, IT…
Serves UK businesses, infrastructure owners and public-sector organisations managing buildings, estates, IT connectivity, power networks and EV infrastructure.
Location
HINKO CONSTRUCTION LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides civil engineering and infrastructure construction services, delivering projects for local authorities and other clients. Services include project management, emergency response works, and…
Serves local authorities and commercial infrastructure clients in the North of England, targeting public-sector buyers and businesses needing contractors for complex civil engineering and emergency…
Financial Health
HealthyHealthy
Location
AmcoGiffen
Provides multi‑disciplinary engineering, construction and maintenance services for transport, energy and environmental infrastructure. Activities include civil and structural design, rail…
Serves UK infrastructure clients, including rail businesses, energy asset owners, environmental bodies such as the Environment Agency, and transport-sector stakeholders needing support for critical…
Location
Barnsley SPV Three
Provides engineering and construction services for infrastructure and building projects across sectors including transport, healthcare, energy, defence and data centres. Delivers project design,…
Serves business and public sector clients commissioning major construction projects, including infrastructure, healthcare, rail, defence, science and research, data centre, energy and water, and…
Location
CAIRN CROSS (GROUP) LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides design-and-build civil engineering services for rail infrastructure, particularly maintenance depots and related facilities. Installs carriage washes, fuelling and CET systems, wheel lathes…
Serves UK rail sector clients, including train and freight operating companies and rail maintenance depot operators, plus infrastructure buyers in highways, bridges, structures and utilities.
Financial Health
StableStable · 0% CAGR over 2y
Location
DSEC LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides construction, mechanical and electrical engineering services for rail infrastructure projects, including design, installation, testing, maintenance and security systems. Delivers works such…
Serves UK rail infrastructure clients, including Network Rail, station operators and main contractors delivering construction, mechanical and electrical projects across railway assets.
Financial Health
WeakWeak · -78% CAGR over 3y
Location
CARNELL MANAGEMENT SERVICES LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides highway infrastructure maintenance and civil engineering services including drainage surveys and remediation, filter drain recycling, safety barrier and fencing installation, bridge…
Serves public-sector highway authorities, National Highways framework clients, and infrastructure contractors responsible for road networks, including asset managers overseeing maintenance, safety,…
Financial Health
HealthyHealthy · Hiring · 6% CAGR over 5y
Location
The Freedom of Companies
Provides technical engineering, maintenance, and infrastructure services for power and facilities networks. Activities include electrical and civil design, overhead line and substation works, asset…
Serves B2B and public-sector infrastructure buyers, including electricity network operators, renewable developers, facilities managers, schools and estate owners with private networks, utility assets…
Location
GRIDTEC LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides engineering, procurement and construction services for electrical and energy infrastructure projects. Designs, installs and commissions power connections, substations and cable systems, and…
Serves B2B clients in UK utility and construction markets, including renewable energy, energy storage, process and industrial developers requiring electrical power infrastructure for large-scale…
Financial Health
HealthyHealthy · Hiring · 155% CAGR over 2y
Location
Provides highway maintenance and infrastructure services including civil engineering works, drainage surveys and remediation, filter drain recycling, bridge maintenance, road safety barriers and…
Serves public-sector highways authorities, National Highways frameworks, and major infrastructure contractors responsible for road networks, roadside assets, bridges, drainage and traffic safety…
Location
Provides engineering, procurement and construction services for utility infrastructure projects, including extra high‑voltage power cable systems, network connections, district heating…
Serves major UK utility providers, power distribution network operators and infrastructure developers involved in energy, EHV cable, district heating and network connection projects.
Financial Health
Insufficient historyInsufficient history
Location
SCD Group Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides civil engineering and construction services for infrastructure projects, including groundworks, road and pathway building, fibre network and cable installation, renewable energy…
Serves blue-chip businesses and infrastructure project owners in construction, renewable energy and utilities, including clients commissioning multi-million-pound schemes across civil engineering,…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
Barnsley SPV TWO
Provides engineering and construction services for major building and infrastructure projects. Delivers design, manufacturing, and construction across sectors including transport, healthcare, energy,…
Serves public and private sector clients commissioning major engineering and construction projects, including infrastructure, healthcare, rail, defence, science and research, data centres, energy and…
Location
Yorkshire Learning Holdco
Provides engineering and construction services for infrastructure and building projects, including rail, healthcare, energy, defence, and data centre facilities, and operates manufacturing,…
Serves public and private sector clients commissioning major built-environment projects, including healthcare providers, rail and infrastructure authorities, defence bodies, research institutions,…
Location
Psbp NW Projectco
Provides infrastructure construction, engineering and project financing services for transport, energy, utilities and social infrastructure projects, including highways, rail systems, buildings,…
Serves public-sector bodies, regulated utilities and large private developers across infrastructure and building sectors, including transport, energy, defence, education, healthcare, housing, water,…
Location
Operates as an engineering and construction group delivering building and infrastructure projects. Provides design, engineering, procurement and construction services across sectors including rail,…
Serves public and private sector clients in infrastructure, healthcare, rail, defence, science and research, data centres, energy and water, including government bodies, utilities, developers and…
Location
HENEGHAN & SONS LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides civil engineering and site preparation services, including installation of utility infrastructure and fibre optic connectivity. Carries out groundworks and infrastructure works supporting…
Serves B2B telecoms and fibre infrastructure providers, construction and housebuilding clients, plus homeowners and businesses needing connectivity across the UK North, including northern towns and…
Financial Health
StableStable · -71% CAGR over 3y
Location
INDEPTH CIVIL ENGINEERING SERVICES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides civil engineering and utility contracting services including drainage installation, groundworks, land remediation, and reinforced concrete structures. Also offers construction plant and…
Serves public and private sector clients, including regional and local authorities, water and utility companies, property developers, remediation firms, housebuilders, and blue-chip or private…
Financial Health
HealthyHealthy · -33% CAGR over 4y
Location
AJMS CONSULTANTS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides civil and structural engineering consultancy services for infrastructure projects, specialising in rail and highway design. Offers railway engineering, civil engineering, structures…
Serves rail and infrastructure asset owners, operators and principal contractors, including Network Rail, Siemens and major civil engineering contractors, on UK rail, highway and structures projects.
Financial Health
WeakWeak · Hiring · 10% CAGR over 2y
Location
CONCORD STREET MANAGEMENT COMPANY LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides construction and civil engineering services, delivering new builds, extensions, refurbishments and fit‑outs, and design-and-construct infrastructure projects including ports and harbours,…
Serves business and public sector clients commissioning construction and civil engineering works, including healthcare, commercial workspace, life sciences, transport, ports and harbours, energy and…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
STANNINGLEY ENGINEERING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides mechanical and civil engineering services for the utilities sector, including pipework installation, steel fabrication, coded and hot tap welding, pipe supports, concreting, excavations,…
Serves utilities-sector businesses, including utility operators and infrastructure contractors requiring mechanical, civil, steelwork, electrical and instrumentation engineering support.
Financial Health
HealthyHealthy · -1% CAGR over 4y
Location
MBS Engineering Solutions Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides electrical engineering services including design, development and maintenance of electrical systems for buildings, transport infrastructure and power distribution networks. Also delivers…
Serves B2B clients across construction, transport, energy and renewables, building services, manufacturing and power distribution, from one-off projects to large-scale industrial upgrades.
Financial Health
StableStable · Hiring · 46% CAGR over 3y
Location
AMEY INFRASTRUCTURE MANAGEMENT (1) LTD
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsActs as a holding company holding equity and loan stock investments in infrastructure partnership entities, including Integrated Bradford PSP Limited, Integrated Bradford Holdco Two Limited and Scots…
Serves UK public-sector bodies and infrastructure owners/operators across roads, rail, defence, justice, education, health, aviation and complex facilities.
Financial Health
HealthyHealthy · Profitable
Location
Connaught Construction Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides groundwork and civil engineering services for housebuilding and commercial developments, including earthworks, piling, road and sewer construction, ground preparation, drainage and…
Serves large UK housebuilders and construction companies, including residential developers and commercial sector clients, primarily across Yorkshire and surrounding regions.
Financial Health
StableStable · 0% CAGR over 3y
Location
POWERBETTER DEVELOPMENTS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides ground engineering services for construction projects, specialising in soil improvement, stabilisation and modification, rapid impact and dynamic compaction, and deep ground improvement.…
Serves construction contractors, developers and project owners in infrastructure, industrial, commercial, residential, port and environmental sectors, primarily across the UK and Ireland.
Financial Health
StableStable · 4% CAGR over 2y
Location
Yorkshire Learning Projectco
Provides engineering and construction services for major building and infrastructure projects. Designs, manufactures and delivers facilities across sectors including healthcare, rail, defence, data…
Serves public-sector bodies and large private clients commissioning major infrastructure, healthcare, rail, defence, science and research, data centre, energy, water and leisure projects.
Location
Matrix ABC Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides surveying and CAD services for the utilities sector, producing as‑laid drawings and asset records for gas, water, electricity and telecoms networks. Also carries out topographical surveys,…
Serves UK utility infrastructure clients, including gas, water, electricity and telecoms network operators, DNOs, IDNOs, EHV project teams and directional drilling contractors.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
MOORHEAD EXCAVATIONS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides site enabling works for construction projects, including bulk earthworks and excavation, demolition, site clearance, soil stabilisation, remediation, aggregate recycling, and disposal of…
Serves B2B customers in the construction industry, including building contractors, developers and design engineers across the North of England and wider UK, typically on mid-sized to large project…
Financial Health
StableStable · -6% CAGR over 2y
Location
K.J.M CIVILS LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides civil engineering contracting services including deep drainage installation, road construction, surface water attenuation systems, sewer connections and culvert works. Also supplies…
Serves main contractors, civil engineering firms and construction subcontractors across the UK, particularly clients tendering infrastructure, drainage and roadworks packages requiring accredited…
Financial Health
StrongStrong · Growing, Hiring · 48% CAGR over 4y
Location
ARP GEOTECHNICAL LIMITED
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsProvides civil, structural and geotechnical engineering consultancy services, including site investigations, geo‑environmental assessments, topographical surveys, infrastructure and foundation…
Serves property developers, contractors, architects and asset owners across residential, commercial, industrial, retail/leisure, health, education, infrastructure and water projects, including…
Financial Health
StableStable · -4% CAGR over 3y
Location
Sweco UK
Provides engineering, environmental and design consultancy services for buildings, infrastructure, transport, water and energy projects, including structural and civil engineering, planning,…
Serves public and private sector organisations commissioning built environment and infrastructure projects, including property developers, transport bodies, utilities, energy and water companies,…
Location
Turner & Townsend
Provides project management, programme advisory, cost and commercial management, procurement, and asset consultancy services for large-scale real estate, infrastructure, energy and natural resources…
Serves public and private sector organisations running major projects in real estate, infrastructure, energy and natural resources, including utilities, transport, healthcare, defence, data centres,…
Location
Barnsley for Learning Three
Provides engineering and construction services for major infrastructure and building projects, including rail, healthcare, energy, defence and data centres, and offers off‑site manufacturing, plant…
Serves large organisations and public sector bodies commissioning major construction and engineering projects, including clients in infrastructure, healthcare, rail, defence, science and research,…
Location
J & P REINFORCED CONCRETE SPECIALISTS LTD
Trajectory
4y · 2022–NowFinancial 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
Hydraulic Analysis Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides hydraulic engineering consultancy for pipeline and fluid transport systems, including surge and transient analysis, hydraulic modelling, digital twin and real-time simulation tools, testing…
Serves B2B clients in water, wastewater, energy, oil, gas and petrochemical sectors, including utilities, pipeline operators, EPC project teams and industrial facilities with complex pipeline and…
Financial Health
StableStable · Hiring · 6% CAGR over 2y
Location
McFadden Building & Civil Engineering (Holdings) Limited
Trajectory
3y · 2021–NowFinancial sub-scores
Computed from 3 filingsProvides civil engineering and construction services for petrol stations and fuel forecourts, delivering end‑to‑end development including groundworks, substructure and superstructure packages, and…
Serves fuel retailers, petrol station and service station operators, and major oil brands across the UK, from independent forecourt owners to blue-chip clients such as BP, Shell and Jet.
Financial Health
StableStable · Hiring · 34% CAGR over 4y
Location
Marr Contracting (International) Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and supplies heavy‑lift luffing tower cranes and provides specialist craneage and lifting services for large construction and infrastructure projects, including bridges, high‑rise buildings,…
Sells to large construction and infrastructure organisations, including contractors and project teams delivering bridges, metros, high-rise buildings, energy, mining, oil and gas, nuclear, data…
Financial Health
StableStable · -56% CAGR over 4y
Location
RAWLINGS CONSULTING (UK) LTD
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsProvides construction contracting services for commercial developments and infrastructure projects. Delivers planning, project management and on-site construction for facilities such as rail depots,…
Serves private-sector businesses and infrastructure clients commissioning commercial developments, depot upgrades and complex construction projects, including rail operators and organisations…
Financial Health
StableStable · Hiring · 133% CAGR over 1y
Location
K Rouse Civil Engineers Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides civil engineering contracting services, delivering construction and infrastructure projects and undertaking site works and project management for clients with complex or time‑sensitive…
Financial Health
StableStable · Profitable · -1% CAGR over 4y
Location
B & R GALLAGHER (HOLDINGS) LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides civil engineering and groundworks services for construction projects, including installation of roads and sewers, drainage systems, foundations, and large-scale earthworks. Supports…
Serves housebuilders and property developers across Yorkshire and surrounding regions, particularly clients delivering residential developments that require infrastructure, groundworks and civil…
Financial Health
WeakWeak · -3% CAGR over 3y
Location
ZINC CONSULT LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides project management and commercial consultancy services for infrastructure projects in rail, highways, energy and civil engineering sectors, including estimating, procurement support, risk…
Serves B2B clients in UK rail, energy, highways and infrastructure, including contractors, project owners, consultancies and operating companies involved in major capital projects.
Financial Health
HealthyHealthy · Hiring · 53% CAGR over 4y
Location
Encon
Provides construction and civil engineering services, delivering building and infrastructure projects including residential housing, schools, care homes, retail developments, roads, recycling…
Targets public sector bodies, property developers and commercial organisations in education, care, residential, infrastructure, retail, industrial, community and waste/environmental sectors.
Location
Shanco Contracts Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides groundworks and enabling works for construction projects, including excavation, foundations and site preparation. Works with contractors and public sector clients on projects such as…
Serves Tier 1 contractors and public sector clients across the UK, especially in justice, healthcare, education, care home, retirement living, and complex secure or live-site construction…
Financial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
COMTECH DESIGNS LTD
Trajectory
1y · 2024–NowProvides engineering services for telecommunications infrastructure, including network and site surveying, infrastructure design, independent build audits, and preparation of as-built documentation…
Serves B2B clients in the telecommunications and engineering infrastructure sectors, including network operators, contractors and project teams delivering infrastructure build programmes.
Financial Health
Insufficient historyInsufficient history
Location
JOSHUA THOMAS AND PARTNERS LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides construction and engineering services for public and commercial sectors, including project management and planning, construction and infrastructure works, electrical installation and…
Serves public sector bodies and commercial organisations requiring construction, infrastructure, electrical maintenance, and industrial access support.
Financial Health
StableStable
Location
Forwade Site Services Ltd
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsProvides civil engineering and construction services focused on petrol station and forecourt developments, delivering end‑to‑end substructure and superstructure works including new builds, rebuilds,…
Serves B2B fuel retailers, petrol station and forecourt operators, service station owners and blue-chip energy brands such as BP, Shell and Jet across the UK.
Financial Health
WeakWeak · 0% CAGR over 1y
Location
BKS Groundworks Holdings Limited
Trajectory
3y · 2024–NowProvides groundworks and civil engineering services for construction projects, including site clearance, excavation, foundation installation to DPC level, plot drainage, attenuation tanks, road and…
Serves residential and commercial construction customers in Yorkshire, including developers, builders, property owners and contractors needing groundwork support for new-build, infrastructure and…
Financial Health
Insufficient historyInsufficient history
Location
Psbp NW Holdco
Provides infrastructure construction, civil engineering and project management services. Designs, builds and maintains transport networks, energy and utility systems, and public buildings, and…
Serves public-sector bodies, infrastructure owners and large private clients in transport, energy, defence, social infrastructure, commercial property, housing, healthcare, education, water and local…
Location
HORSFORTH OFFICE PARK LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides civil engineering and construction services focused on petrol stations and fuel forecourts, delivering end‑to‑end development including site preparation, substructure and superstructure…
Sells to businesses in the fuel retail sector, including petrol station operators, forecourt owners, fuel groups and major oil brands. Serves commercial clients nationwide, from independent operators…
Financial Health
HealthyHealthy
Location
Unlock all 440 leads
Showing 50 of 440 — +390 more with verified decision-maker contacts, live data, and CRM sync.
How Leeds infrastructure companies work and how to sell to them
What they do
Leeds infrastructure companies usually earn through project fees, maintenance contracts, inspection work, specialist labour, asset-operation charges and advisory services attached to physical networks or property programmes. Pricing tends to follow the delivery risk: fixed-price packages where scope is clear, time-and-materials where site conditions are uncertain, retainers for planned maintenance, and milestone billing for design or civils work. Smaller jobs may be commissioned as call-outs, surveys or feasibility work, while larger packages require mobilisation planning, subcontractor management, plant access and insurance cover before delivery begins. Margins are shaped by utilisation, materials, fuel, insurance and the ability to schedule crews without idle time.
Who they sell to
Buyers are usually facilities directors, estates managers, heads of property, operations directors, transport managers, finance teams and procurement officers rather than a single technical sponsor. Commercial and industrial customers may buy directly when work is site-specific, while public bodies and regulated asset owners typically use frameworks, approved supplier lists or formal RFP processes. Contract values vary from small remedial works to larger programmes that need board-level or cabinet-level approval. Sales cycles often run over weeks for urgent maintenance and over months for planned works, especially where pre-qualification, method statements, safety evidence and references are reviewed before price.
What they buy
Most infrastructure firms tend to spend on tools and services that help them price work, control delivery risk and evidence compliance. Relevant categories include estimating and bid software, project accounting, job costing, field-service scheduling, document control, asset management, fleet and plant management, health and safety systems, cyber security, cloud hosting, payroll, HR and recruitment. Service spend often includes insurance broking, legal advice, tax, audit, planning support, environmental assessment, training and subcontract labour. Suppliers with site-based teams may also need mobile devices, connectivity, vehicle tracking, materials procurement, protective equipment and support for invoice approvals across multiple work packages.
Why and how to sell to them
Infrastructure buyers tend to evaluate new suppliers when a tender win stretches delivery capacity, a framework place requires better reporting, or a new finance director asks for tighter cost control. Other triggers include a senior operations hire, depot expansion, rising insurance or materials costs, headcount growth, an audit finding, a safety incident, or repeated delays in invoicing subcontracted work. Outbound messages are more credible when they connect to project leakage, mobilisation speed, compliance evidence or cash collection, rather than generic productivity claims. Proof points should map to procurement language: fewer manual hand-offs, clearer audit trails, lower rework and faster handover from bid to delivery.
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.
Also in Leeds
Related directories
Frequently asked questions
How many infrastructure companies are there in the Leeds?↓
What counts as a infrastructure company in this list?↓
Which are the largest infrastructure companies in the Leeds?↓
What do infrastructure companies in the Leeds actually do?↓
How does Leeds infrastructure compare internationally?↓
How is this list built and how fresh is the data?↓
How big are the typical infrastructure companies in the Leeds?↓
Are these mostly new or established infrastructure companies?↓
What SIC codes does this use?↓
What buying signals should I look for?↓
Push these 440 companies into your pipeline.
Find the right decision-makers, see verified company data, and export your list in seconds.