Infrastructure Companies in Birmingham: 698 Active Firms (2026)
Infrastructure companies in Birmingham design, build and maintain transport, utilities, civil works and built-environment assets across the metropolitan area.
Buying centres tend to sit with public works teams, utilities asset managers, principal contractors and estates or facilities directors, rather than with a central purchaser. Sales are usually tender-led, with suppliers proving delivery capacity, health-and-safety discipline, local labour access and the ability to work around live assets. The better-fit firms are not just design consultancies or labour-only subcontractors: they can take on framework lots, asset-maintenance call-offs and project-delivery packages for regulated networks, transport schemes, waste facilities, telecoms estates and public-realm work across the West Midlands.
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Birmingham has 698 actively trading infrastructure companies in this list. The cohort is broad rather than uniform: civil-engineering contractors, maintenance providers, infrastructure consultancies and supply-chain specialists sit alongside businesses serving utilities, transport, industrial estates and public-realm schemes. Reported employment totals 1,723 people, which points to a market weighted towards small and specialist delivery teams rather than very large local employers. That employment footprint still matters for researchers, because much infrastructure capacity is held in project teams, subcontracting layers and framework suppliers that do not always resemble a conventional employer model.
Public procurement, planning permissions and regulated-asset investment cycles shape much of the addressable work. Birmingham infrastructure suppliers often sit below the client that owns the asset, taking risk through framework agreements, design-and-build packages, maintenance contracts or specialist subcontract scopes. That market structure makes accreditation, insurance, safety management and evidence of prior delivery central to procurement, even where the firm is not itself regulated. Payment timing and liability allocation also matter: infrastructure work commonly pushes cost, delay and defect risk through the contracting chain, so balance-sheet depth and contract governance can be as important as technical capability.
Demand appears tied to public capital programmes, utilities renewal, industrial-site servicing and housing-linked enabling works, rather than discretionary corporate spending. The cohort tends to split between established contractors with framework access and a long tail of smaller specialist operators serving maintenance, surveying, civils, telecoms and facilities support. Scale-up scarcity is likely to persist where bonding requirements, labour constraints and working-capital needs limit how quickly firms can take on larger packages. Consolidation may continue around compliance-heavy maintenance and network-services niches, while consultancy-led firms appear better placed where clients need planning, design coordination and asset-condition evidence before committing to construction work.
What’s in the file
One row per company, 50+ columns — everything below plus each company’s verified directors, from Companies House filings.
Company data
Verified directors — included
Active director count is the full Companies House board, so it can be higher than the number of names listed — we leave out nominee and formation-agent directors, who aren’t worth contacting. It’s blank for the small number of companies whose officers we haven’t fetched yet.
You’re charged per business, not per row. Where a business trades through several registered companies you get every one, and the Group Primary column marks one row per business — filter to those and the count matches your invoice. Rows sharing a website are not automatically one business: franchises and multi-site operators each count separately, and where names don’t prove a relationship we count them apart rather than guess.
698
Active firms
2026
47
Over £5M
Companies above the revenue threshold
171
Since 2022
Newer incorporations
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Key facts
About 6% of the trading cohort reports turnover above £5M (47 of 698 firms) — the rest sits below that revenue band.
24% of the cohort was incorporated since 2022 (171 firms), so a sizeable share is in its first few filing cycles.
Birmingham infrastructure firms work across transport, utilities, civil works and built-environment assets in the metropolitan area.
Buyer demand is tied to capital works, asset maintenance and subcontracted delivery, rather than the more discretionary end of construction services.
The local supplier base spans contractors, technical services firms and asset-maintenance businesses.
Top Birmingham Infrastructure companies
Financial sub-scores
Computed from 2 filingsProvides infrastructure construction and engineering services, including civil engineering, building construction, rail and highway works, utilities, and mechanical and electrical engineering. Also…
Serves public-sector bodies, regulated utilities and major private developers across transport, energy, defence, healthcare, education, housing and other social infrastructure sectors, including…
Financial Health
DistressedDistressed
Location
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Financial sub-scores
Computed from 5 filingsProvides civil engineering and public works services focused on highway infrastructure. Carries out carriageway and footway construction, highway drainage, traffic signal installation, traffic…
Serves public sector buyers, particularly local authorities in the West Midlands, delivering highway and public works projects for councils responsible for roads, traffic management and related…
Financial Health
WeakWeak · -5% CAGR over 4y
Location
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Computed from 4 filingsProvides civil engineering, construction and technical services for rail and infrastructure projects, including rail operations support, signalling, track safety and warning systems, geofencing,…
Serves infrastructure owners, public-sector rail bodies and Tier 1/2 contractors in the UK rail, civils and utilities sectors, including clients such as Network Rail, HS2 and Midland Metro Alliance.
Financial Health
WeakWeak · -80% CAGR over 3y
Location
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- Actavo06468204
- Actavo (P.D.C.)03585908
- Actavo07188198
Provides engineering and infrastructure services including telecom network survey, planning, construction and maintenance, in‑home installation for broadband and energy providers, industrial…
Serves B2B and public-sector clients in telecoms, utilities, energy, construction, industrial, healthcare, education and events, including network operators, infrastructure owners, major industrial…
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- R&C Williams04801763
Financial sub-scores
Computed from 5 filingsProvides civil engineering contracting services for public infrastructure projects, including bridge construction, structural repairs, steelwork fabrication, and highways and infrastructure…
Serves public-sector highways and infrastructure clients, local authorities, and private civil engineering managers needing contractors for construction, structural maintenance, and bridge-related…
Financial Health
WeakWeak · -5% CAGR over 4y
Location
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Computed from 5 filingsProvides building and civil engineering contracting services, delivering construction and infrastructure projects such as public realm works, road junction improvements, studio developments and…
Serves public-sector bodies, local authorities and commercial developers commissioning construction and civil engineering projects in transport infrastructure, public realm, media studios and energy…
Financial Health
HealthyHealthy · Profitable · -6% CAGR over 4y
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Provides subsurface infrastructure and surveying services including utility mapping, underground utility surveys, drain and sewer inspections, CCTV surveys, trenchless pipe repairs, vacuum…
Serves UK infrastructure asset owners, utilities, contractors and public-sector bodies across rail, highways, water, flood defence, ports, aviation, construction, education and healthcare.
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Computed from 5 filingsProvides installation and maintenance of industrial and commercial gas and water utility infrastructure, including above- and below‑ground pipelines, mains connections and leak repairs. Undertakes…
Serves B2B and public-sector customers needing gas and water utilities contractors, including British Gas, government bodies, local authorities, utility companies, landfill operators, hospitals,…
Financial Health
StableStable · -8% CAGR over 5y
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Computed from 5 filingsProvides specialised construction and structural engineering services including post‑tensioning systems, cable‑stayed structures, ground engineering and heavy lifting for bridges, tunnels, buildings,…
Serves public and private infrastructure clients, contractors and asset owners in transport, buildings, airports, energy, industrial, marine, water and wastewater sectors.
Financial Health
WeakWeak · -10% CAGR over 4y
Location
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Computed from 5 filingsProvides civil engineering and construction services for electrical substations, including maintenance, groundworks, installation of bases and plinths, concrete repair, cable pulling, fencing, gravel…
Serves electricity distribution networks, utility companies and substation operators that need authorised contractors for high-voltage sites, including maintenance and emergency callout support.
Financial Health
HealthyHealthy
Location
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Computed from 5 filingsProvides civil engineering and construction services including drainage installation and clearance, groundworks, highway maintenance, surfacing, bulk excavations, structural repairs, CCTV drain…
Serves public sector bodies, developers, contractors and commercial clients needing civil engineering, highways, drainage and groundworks support across the Midlands and nearby areas.
Financial Health
HealthyHealthy · Hiring · 7% CAGR over 4y
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Computed from 5 filingsProvides civil engineering and construction services including roads, sewers, bridges, foundations, flood defence and coastal works. Also carries out earthworks and quarrying, supplies aggregates,…
Serves public sector bodies, property developers, landowners and commercial organisations needing construction and civil engineering support for infrastructure, industrial, commercial and…
Financial Health
DistressedDistressed · -13% CAGR over 5y
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Computed from 5 filingsProvides civil engineering and construction services including design and build, demolition, utilities and infrastructure works, airport services, logistics support, and plant hire for building and…
Serves construction main contractors, airport operators, developers and public-sector infrastructure clients, including schools and transport sites, on civil engineering and utilities projects.
Financial Health
StableStable
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- FJD Consulting09908819
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Computed from 5 filingsProvides engineering design and consultancy services for rail and transportation infrastructure projects, offering multidisciplinary design expertise and technical support for planning, development,…
Serves organisations delivering UK rail and transportation infrastructure projects, including public-sector transport bodies, infrastructure owners, contractors and engineering project teams needing…
Financial Health
WeakWeak · 1% CAGR over 4y
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Computed from 5 filingsProvides civil engineering and FRC subcontracting services for infrastructure and construction projects, including earthworks, groundworks, drainage, formwork, reinforcement and concrete works. Also…
Serves Tier 1 contractors, infrastructure developers and public-sector clients on large construction projects across water, defence, highways, logistics, energy, nuclear, healthcare, aviation and…
Financial Health
StrongStrong · Hiring · 8% CAGR over 5y
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Computed from 4 filingsProvides construction and civil engineering services including new builds, extensions, refurbishments and fit-outs. Delivers infrastructure projects such as ports and harbours, road and rail works,…
Serves public and private sector clients commissioning construction and civil engineering projects, including developers, healthcare and life sciences organisations, transport and port operators,…
Financial Health
StrongStrong · 0% CAGR over 2y
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Computed from 4 filingsDesigns, manufactures and installs modular bridges and engineered metal and concrete structures for infrastructure projects. Provides engineering, fabrication and project support services, covering…
Serves public authorities, infrastructure agencies, civil engineering contractors and project developers needing bridge and structural projects, including internationally financed infrastructure…
Financial Health
WeakWeak · -57% CAGR over 3y
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Computed from 5 filingsProvides civil engineering and construction services for infrastructure projects, including canal and waterway works, bridge repairs, towpath construction and building works. Also undertakes…
Serves organisations commissioning building and civil infrastructure works, particularly canal and waterway asset owners, heritage bridge clients and customers needing reactive maintenance in the…
Financial Health
HealthyHealthy
Location
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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
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Computed from 5 filingsProvides reinforced concrete construction services for civil engineering projects. Designs and builds concrete frames and structural elements for highways, rail, water infrastructure, flood defences,…
Serves major UK construction and civil engineering clients, including main contractors, local authorities and infrastructure project teams in highways, rail, water/environment, commercial,…
Financial Health
HealthyHealthy · -65% CAGR over 4y
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Computed from 5 filingsProvides turnkey project management and construction services for civil engineering and building projects. Works across sectors including energy and renewables, quarrying, infrastructure, utilities,…
Serves businesses and contractors delivering civil engineering and building projects across the UK and Ireland, particularly in energy and renewables, quarrying, infrastructure, utilities, waste…
Financial Health
StrongStrong · Hiring · 11% CAGR over 4y
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- Link Engineering14001793
Financial sub-scores
Computed from 3 filingsProvides engineering consultancy services including civil, structural and geotechnical engineering, transport planning, planning support, and building investigation. Works on development…
Serves property developers, housebuilders, contractors and public-sector bodies involved in logistics, manufacturing, residential, healthcare, education, office, retail, leisure, public realm and…
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 2y
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Computed from 2 filingsProvides temporary traffic management services for highway and streetworks projects, including static and mobile lane closures, event traffic management, emergency callouts, and vehicle restraint…
Serves B2B and public-sector clients in the highways, infrastructure, construction and events sectors, including contractors, works managers, local authorities and project teams.
Financial Health
StableStable · Hiring · 21% CAGR over 1y
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Computed from 3 filingsProvides transport planning, highway and civil engineering, environmental and placemaking consultancy for land development and regeneration projects. Services include transport modelling and…
Serves local authorities, infrastructure bodies, landowners and property developers working on land development, regeneration, highways, active travel and public-realm schemes.
Financial Health
StableStable · Hiring · 7% CAGR over 2y
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Computed from 4 filingsProvides civil and structural engineering consultancy services, including bridge, transport, water and geotechnical engineering, flood management, façades and digital engineering. Works on…
Serves property developers, contractors, infrastructure owners and public-sector agencies delivering built-environment projects across commercial, residential, transport, water, energy, defence,…
Financial Health
HealthyHealthy · 0% CAGR over 3y
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Computed from 5 filingsProvides engineering, construction and inspection services for utility and industrial infrastructure. Activities include welding and mechanical engineering, maintenance of gas holders and digesters,…
Serves B2B clients in utility, infrastructure, construction and power generation sectors, including water, gas, oil and petrochemical companies, plus large insurers, outdoor advertising firms and…
Financial Health
StableStable · -2% CAGR over 4y
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Computed from 3 filingsProvides groundworks and environmental contracting services including drainage installation, foundations and concrete works, sewage treatment systems, stormwater management systems, construction of…
Serves commercial, agricultural, industrial and construction-sector clients, plus landowners and property owners, primarily in the Midlands, with site infrastructure and environmental contracting…
Financial Health
DistressedDistressed · -25% CAGR over 2y
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Computed from 5 filingsProvides safety‑critical workforce and infrastructure support services for rail, civil engineering and utilities projects, including arboriculture, rail operations, welding, geofencing, track warning…
Serves B2B clients in the UK infrastructure sector, especially rail, civil engineering, utilities and construction organisations needing safety-critical workforce support, site services, inductions…
Financial Health
StrongStrong
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Computed from 3 filingsProvides groundworks and civil engineering services including land drainage, agricultural contracting, site preparation, and infrastructure works. Also constructs equestrian arenas, lakes and…
Serves B2B and public-sector clients in the Midlands, including local authorities, utility companies, housing developers, land agents, farms, estates and equestrian operators.
Financial Health
StableStable · 0% CAGR over 2y
Location
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Computed from 4 filingsProvides civil and structural engineering consultancy services, including infrastructure and highway design, flood risk assessments, sustainable drainage systems, hydraulic modelling, structural…
Serves UK commercial developers, private equity funds, life sciences organisations, contractors, retailers, health trusts, housing associations, schools and public sector bodies including defence,…
Financial Health
StableStable · -81% CAGR over 3y
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Computed from 5 filingsProvides civil engineering and groundworks services for construction projects, including housing infrastructure, road and sewer works, foundations, drainage, and external works. Undertakes civil,…
Serves housing developers, main contractors and infrastructure clients needing civil engineering, groundworks, road, sewer, drainage and external works packages nationwide.
Financial Health
StableStable · -10% CAGR over 4y
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Computed from 5 filingsProvides transport planning and engineering consultancy services for property development projects, including highway and infrastructure design, drainage engineering, and flood risk assessments,…
Serves UK property developers and development teams across residential, logistics, retail, commercial, healthcare, leisure and education projects, including work with architects, co-professionals and…
Financial Health
HealthyHealthy · -67% CAGR over 4y
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Computed from 5 filingsProvides civil engineering and construction services, including earthworks, infrastructure works, and building projects. Also delivers project management and asset modification and maintenance for…
Serves B2B clients such as property developers, commercial property owners and organisations delivering retail, housing-led mixed-use and infrastructure projects across the UK.
Financial Health
StrongStrong · Hiring · 32% CAGR over 5y
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Computed from 5 filingsProvides general contracting and project management services for commercial construction projects, including design‑build and consulting support, coordinating subcontractors and overseeing planning,…
Serves B2B clients in commercial construction, including commercial property owners, developers, architects and organisations managing complex building projects.
Financial Health
WeakWeak · Hiring · 6% CAGR over 4y
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Computed from 5 filingsProvides traffic and transport engineering consultancy focused on temporary traffic management design for roadworks and events. Services include CAD-based traffic management plans, vehicle swept path…
Serves UK traffic management contractors, local authorities, construction companies and event organisers, from small local projects to large national road and infrastructure initiatives.
Financial Health
StableStable · -60% CAGR over 4y
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Computed from 5 filingsProvides transport planning consultancy for development projects, including transport assessments, travel plans, feasibility studies, masterplanning advice, junction design, public consultation, and…
Serves UK property developers, house builders, landscape architects, retailers, landowners, local government and regional transport bodies needing transport planning input for development and…
Financial Health
StrongStrong · Growing, Hiring · 16% CAGR over 4y
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- Colas UK02644726
- Colas UK10907336
- Colas UK05133561
- Colas UK10883476
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Computed from 2 filingsDesigns, constructs and maintains transport infrastructure including highways, airports and defence facilities. Manufactures asphalt and bitumen products, operates quarries and asphalt plants, and…
Serves public and private sector organisations responsible for transport infrastructure, including highways authorities, airport operators, defence infrastructure clients and major project owners in…
Financial Health
StrongStrong · Profitable
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- Barhale01268005
Provides civil engineering and infrastructure services including design, construction, tunnelling, MEICA and steel fabrication. Builds and maintains water and utilities networks, transport…
Serves UK infrastructure clients across water and utilities, transport, energy and built environment sectors, including water companies, network operators, public realm bodies and major…
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- Doocey Group13213273
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Computed from 5 filingsProvides civil engineering and utility infrastructure services including installation and maintenance of gas, water and electricity networks, cross‑country pipelines, sewerage and drainage systems,…
Serves utility providers, infrastructure contractors, developers and public-sector bodies across the UK, including water, gas, electricity, telecoms, transport, defence, healthcare, education and…
Financial Health
StrongStrong · Hiring · 15% CAGR over 4y
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Computed from 5 filingsProvides civil and ground engineering contracting services including drilling, site investigation, mine shaft treatment, grouting, soil stabilisation and mini‑piling. Delivers infrastructure works…
Serves public and private sector clients, including infrastructure developers, utilities, rail and highways bodies, renewable energy projects, and industrial or automotive operators.
Financial Health
StableStable
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Computed from 3 filingsProvides highway management and maintenance services for public sector road networks. Activities include asset management, highway inspections, incident response, network management, street lighting,…
Serves UK public sector highway owners and transport authorities, including National Highways, Transport for London and local authorities responsible for strategic and local road networks.
Financial Health
WeakWeak · -9% CAGR over 2y
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Computed from 5 filingsProvides civil engineering and utility contracting services, including excavation and installation of electricity cables, telecom ducting, water and gas pipelines. Also carries out substation…
Serves utility providers, civil engineering contractors and infrastructure project owners across the UK, from small local works to major long-term replacement programmes involving power, telecoms,…
Financial Health
StrongStrong · Growing, Hiring · 27% CAGR over 4y
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Computed from 3 filingsProvides civil engineering and construction services including highway works, bridge construction and maintenance, concrete repair, drainage schemes, sheet piling and retaining walls. Also delivers…
Serves public-sector bodies, infrastructure owners and private clients in the Midlands, including highways authorities, waterways organisations, transport and cycling route partners procuring civil…
Financial Health
DistressedDistressed · -90% CAGR over 2y
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Computed from 3 filingsProvides civil engineering and road construction services including carriageway works, dropped kerbs and block paving. Operates haulage and grab‑lorry transport for aggregates, waste removal and…
Serves local authorities, commercial construction clients and private customers in the West Midlands, including buyers needing civil works, street lighting support, haulage, aggregates, waste…
Financial Health
StableStable · 0% CAGR over 2y
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Computed from 5 filingsProvides pipeline construction and utility infrastructure services including installation and maintenance of gas mains, water mains and fire protection systems. Also performs leak detection, hot…
Serves B2B and public sector buyers on commercial, industrial and infrastructure projects, including developers, main contractors, utilities teams and estates teams for hospitals, universities,…
Financial Health
HealthyHealthy · Hiring · 6% CAGR over 4y
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Computed from 5 filingsProvides multi-utility infrastructure services including design, installation, connection, disconnection and diversion of gas, electricity, water and fibre networks. Also delivers EV charging…
Serves a mix of homeowners, businesses, public-sector bodies and construction firms needing utility connections, disconnections or diversions for property and infrastructure projects.
Financial Health
WeakWeak · -59% CAGR over 4y
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Computed from 3 filingsProvides utility network design, project management and installation services for construction projects, including gas, water, electricity and telecommunications connections. Delivers new utility…
Serves construction industry clients across the UK, including developers, main contractors and project teams needing gas, water, electric and telecoms utility connections for new-build, replacement…
Financial Health
StableStable · Hiring · 30% CAGR over 2y
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Computed from 3 filingsProvides civil engineering and construction services across infrastructure, rail and geotechnical sectors. Delivers projects including highways and bridges, flood and coastal protection, rail…
Serves public and private sector infrastructure buyers, including local authorities, highways bodies, rail operators, utilities, airports and developers across infrastructure, rail and geotechnical…
Financial Health
StrongStrong
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- OnSite02712788
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Computed from 4 filingsProvides specialist contracting services for water and infrastructure networks, including drainage and sewer maintenance, pipeline repair and installation, leak detection, trenchless construction,…
Serves water utilities, rail operators, civil engineering contractors, commercial and industrial sites, insurers, and domestic property owners across the UK and internationally.
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StableStable
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Computed from 3 filingsProvides civil engineering and piling services for infrastructure and construction projects, including sheet and secant piling, load‑bearing piles, pipelines, flood defences, marine works, basements,…
Serves public-sector and private infrastructure clients, main contractors, utilities and developers in transport, water/wastewater, marine, flood defence and major construction projects across the UK…
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StableStable
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How Birmingham Infrastructure companies work and how to sell to them
What they do
Birmingham infrastructure firms usually earn revenue through project delivery, maintenance call-offs, technical consultancy, framework lots and specialist subcontract packages. Pricing tends to mix fixed-price scopes, measured works, day rates, cost-plus arrangements and retainers for planned or reactive maintenance. Their offer is physical and service-led: civil works, inspection, design coordination, plant, field labour, materials, compliance records and site supervision. Margins often depend less on the headline contract value than on utilisation, variation control, subcontractor performance and payment timing. A smaller group can support larger packages; many others win repeat work by being available, accredited and able to mobilise crews locally.
Who they sell to
Most sell to public bodies, regulated asset owners, principal contractors, developers, industrial estates and facilities teams rather than to consumers. Decision-makers typically include capital programme managers, asset managers, commercial managers, quantity surveyors, procurement leads, estates directors and health-and-safety heads. Sales cycles are usually measured in months, especially where frameworks, pre-qualification questionnaires, insurance checks and method statements are involved. Smaller reactive works can move faster, but larger packages tend to pass through tender portals, framework mini-competitions, consultant referrals or RFP processes. Relationship selling still matters, although buyers normally need auditable evidence before awarding work.
What they buy
Infrastructure firms tend to spend on tools and services that help them bid, plan, document and control work across dispersed sites. Relevant categories include estimating, bid management, project costing, scheduling, document control, asset inspection, field-service management, mobile timesheets, fleet and plant management, health-and-safety systems, training, accreditations and subcontractor onboarding. Finance and commercial teams may also buy credit control, contract review, insurance advice, payroll, accounting and working-capital support. Recruitment often centres on site managers, engineers, quantity surveyors, supervisors and skilled trades. Marketing spend is usually practical: tender collateral, capability statements, local search visibility and proof of prior delivery.
Why and how to sell to them
Infrastructure buyers tend to evaluate vendors when a new framework place is won, a project pipeline becomes harder to coordinate, a depot or site team is added, or turnover moves beyond £5M. Pain points are practical: late payments, retentions, variation disputes, labour shortages, safety paperwork, audit trails and the need to prove competence before work is awarded. Outbound messages work better when they tie to contract risk, cash collection, compliance evidence, mobilisation speed or tender conversion, rather than generic productivity claims. Sellers should expect multiple stakeholders and be ready with sector references, implementation effort and proof that site teams will actually use the system or service.
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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