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Civil Engineering Companies in Middlesbrough: 695 Active Firms (2026)
Civil engineering companies in Middlesbrough design, build and maintain transport, water, energy, waste and communications infrastructure across Teesside.
Buying decisions tend to sit with public-sector procurement teams, utilities, infrastructure owners and principal contractors rather than with individual site managers. The work is usually won through tenders, frameworks and repeat call-off packages, so commercial discipline, health-and-safety systems and evidence of past delivery matter as much as technical design capability. Good-fit firms are typically mid-market contractors with in-house estimating, engineering, site delivery and compliance capacity, able to take responsibility for multi-disciplinary works across Teesside and the wider North East. Engagements are project-based, often tied to maintenance, upgrades or enabling works rather than one-off consultancy assignments.
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Middlesbrough has 695 actively trading civil engineering companies in this list, giving the town a sizeable contractor base for a local infrastructure market. Reported employment across the cohort is 649 people, which points to a long tail of small operators alongside a narrower group with payroll depth. Only 15 companies report turnover above £5M, so revenue scale appears concentrated. The company base is also fairly young, with 242 incorporated since 2022, suggesting continued formation of specialist contractors, subcontractors and project-service firms around Teesside’s infrastructure pipeline.
Civil engineering procurement sits inside the UK construction health-and-safety regime, with the Health and Safety Executive setting expectations through the Construction (Design and Management) Regulations. Those duties matter because infrastructure work often involves multiple parties, live assets, temporary works and clear allocation of client, designer, principal contractor, contractor and worker responsibilities. The Civil Engineering Contractors Association frames the sector around the building and maintenance of transport, energy, water, waste and communications networks. ONS construction statistics for Great Britain also point to higher new work and new orders, with private infrastructure among the contributors.
Procurement appears likely to reward contractors that can evidence safety management, commercial control and delivery capacity across several infrastructure settings. The cohort’s shape suggests plenty of small and recently formed firms, but fewer businesses with the balance sheet and management depth needed for larger framework positions. That tends to create room for subcontracting networks around utilities, transport and industrial sites, while also making compliance and cash-flow discipline a recurring constraint. Consolidation may remain selective, with buyers and principal contractors favouring dependable delivery partners over generalist local capacity.
695
Active firms
2026
15
Above £5M
reported revenue
242
New incorporations
since 2022
Key facts
About 2% of the trading cohort reports turnover above £5M (15 of 695 firms) — the rest sits below that revenue band.
34% of the cohort was incorporated since 2022 (242 firms), so a sizeable share is in its first few filing cycles.
The Construction (Design and Management) Regulations 2015 set duties across clients, designers, principal contractors, contractors and workers.
ONS construction statistics for Great Britain show new work rose 1.4% in 2024, while new orders rose 5.6% and private infrastructure increased by 15.4%.
The Civil Engineering Contractors Association represents contractors building and maintaining UK infrastructure networks across transport, energy, water, waste and communications.
The OECD’s 2024 Economic Survey says UK investment remains low in international comparison, keeping infrastructure delivery exposed to public- and private-capital cycles.
Top Middlesbrough Civil Engineering companies
Bottomley Site Services Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides civil engineering services including rail infrastructure works, utilities installation, and structural steelwork. Delivers projects such as track formation, platforms, drainage systems,…
Serves B2B clients across the UK in rail, utilities, infrastructure, commercial and industrial construction, including organisations needing support for rail assets, utility networks, bridges and…
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
Mardec Utilities Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides civil engineering services for telecommunications and electrical infrastructure projects, including mole ploughing, installation of ducts, subducts and fibre optic cables, chamber…
Serves B2B clients delivering telecoms and electricity infrastructure projects, including major utilities, network operators and civil engineering contractors needing project support or specialist…
Financial Health
StrongStrong · Growing · 0% CAGR over 5y
Location
Infratec Assets Limited
Trajectory
3y · 2023–NowProvides highway infrastructure services including civil engineering works, power and communications cabling, street lighting installation, and deployment of road technology systems. Also conducts…
Serves B2B and public-sector highways infrastructure customers across the UK, including Strategic Road Network major projects, local authorities, and contractors requiring accredited workplace safety…
Financial Health
Insufficient historyInsufficient history
Location
SIRIUS (NE) LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides consulting and contracting services for land development, including demolition, earthworks, site remediation, drilling, and civil engineering. Also delivers geotechnical and environmental…
Serves UK development teams and organisations in the residential, commercial, renewable energy, waste and minerals sectors, especially those developing brownfield or greenfield land.
Financial Health
StrongStrong · 0% CAGR over 3y
Location
O&G SOLUTIONS (NORTH EAST) LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong
Location
Thistle Rail Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
WeakWeak
Location
INDUSTRO Engineering Solutions Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides turnkey engineering services including structural steel fabrication, design, civil and electrical engineering. Delivers EPC-style projects from concept to completion for mining,…
Serves industrial B2B customers in mining, petrochemical, renewable energy/EfW, oil and gas, process and material handling sectors, including operators needing turnkey EPC and fabrication project…
Financial Health
StrongStrong · Growing · 2% CAGR over 2y
Location
CDB DESIGN LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Growing, Hiring · 11% CAGR over 4y
Location
ASK PROJECT CONSULTANTS LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StrongStrong
Location
R.C. Ayres Building & Roofing Services Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides construction, civil engineering, building and roofing services for commercial and industrial clients, including work for petrochemical facilities. Activities include structural building…
Serves commercial and industrial clients, particularly industrial operators and petrochemical businesses, including COMAH-regulated sites, needing construction, civil engineering and roofing support.
Financial Health
WeakWeak · -2% CAGR over 3y
Location
Complex Industrial Access Solutions (Offshore) Ltd
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
DistressedDistressed · -29% CAGR over 2y
Location
ADC RENEWABLES LTD
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 3y
Location
KHM Civils Ltd
Trajectory
4y · 2021–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
WeakWeak · Hiring · 14% CAGR over 3y
Location
Elderwood Energy Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
WeakWeak · 0% CAGR over 2y
Location
Anglesey Engineering Limited
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
HealthyHealthy · 0% CAGR over 2y
Location
J Oliver Services Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
WeakWeak · 0% CAGR over 2y
Location
PALIN TECHNICAL ENGINEERING SERVICES LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed · 0% CAGR over 4y
Location
NL Engineering Solutions Limited
Trajectory
3y · 2024–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StableStable · 0% CAGR over 2y
Location
Horizon Energy Ltd
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StableStable · 0% CAGR over 3y
Location
Maxt Site Services Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak
Location
Sterling Filtration Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
Imogenjane Consultants Limited
Trajectory
1y · 2024–NowFinancial Health
Insufficient historyInsufficient history
Location
GBL DRAUGHTING & DESIGN LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
Location
Hv & Lv Solutions Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
HealthyHealthy · 0% CAGR over 2y
Location
Quinns Engineering Consultancy Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
HealthyHealthy · 0% CAGR over 2y
Location
IME ENGINEERING LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
StableStable · 0% CAGR over 3y
Location
Djk Engineering Ltd
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
HealthyHealthy
Location
JSA WELDING SERVICES LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
Location
RAL Instrumentation Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · 0% CAGR over 4y
Location
Neil Woodhouse Rail Limited
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · 0% CAGR over 4y
Location
JLG Rigging and Lifting Services Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed · 0% CAGR over 4y
Location
Tangent Construction Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides civil engineering and construction contracting services, including groundworks, highways improvements, reinforced concrete works, road and sewer remediation, and landscaping for housing…
Serves housebuilders, local authorities and public-sector bodies, plus clients in petrochemical, offshore, utilities, education, retail, energy, transport, highways, NHS and Ministry of Justice…
Financial Health
StableStable · -8% CAGR over 6y
Location
AZZCON LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides civil engineering and groundworks services including site preparation, bulk excavation, foundations, trenching, backfilling and reinstatement. Also carries out utilities repair and…
Targets B2B clients in construction, utilities, pharmaceutical facilities, petrochemical plants and industrial sites across Teesside and the North East, including project managers and site operators.
Financial Health
StrongStrong · Hiring · 38% CAGR over 4y
Location
J&J Plant (NE) Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides high and low voltage electrical infrastructure services including cable installation, jointing and termination, and switchgear and transformer installation, testing and removal. Also offers…
Serves B2B clients in industrial and infrastructure sectors, including steel, chemicals, energy and rail operators, plus contractors needing plant hire, civils and high-voltage electrical support…
Financial Health
WeakWeak · 0% CAGR over 4y
Location
S.W.Directional Drilling Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides trenchless utility and drainage installation services using directional drilling, pipe ramming and impact moling. Designs and installs underground crossings and pipelines, and offers CAD…
Serves civil engineering contractors, utility providers, drainage specialists and infrastructure project teams, including public-sector and regulated-asset projects across roads, railways, rivers,…
Financial Health
StableStable · 0% CAGR over 2y
Location
Todds Highway Maintenance Ltd
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides road planing and highway maintenance services, including asphalt removal, patching and trenching for roads, car parks, bridge decks and motorways. Operates specialist planing machinery and…
Serves B2B and public sector customers needing highway maintenance, including local authorities, major contractors, and private-sector clients commissioning road, motorway, bridge deck, street works,…
Financial Health
HealthyHealthy · Hiring · 8% CAGR over 2y
Location
Commplex Network Services Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides telecommunications infrastructure services including design, installation and maintenance of fibre optic networks. Delivers cabling, fibre splicing and testing, and civil engineering works…
Serves major UK ISPs, fibre network operators and telecom infrastructure partners responsible for large-scale digital network rollout, build programmes and ongoing network support in the…
Financial Health
HealthyHealthy · Hiring · 34% CAGR over 4y
Location
MJ STRUCTURES LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · -68% CAGR over 4y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · -68% CAGR over 4y
Location
C P Sinclair Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
SEYMOUR (CONSTRUCTION & PROPERTY MAINTENANCE) LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides building construction and civil engineering services including groundworks, drainage, highway works and infrastructure for developments. Also undertakes minor property maintenance projects…
Serves B2B clients including property developers, main contractors, manufacturers, airport operators and commercial organisations, mainly across the North of England, as principal contractor or…
Financial Health
WeakWeak · -10% CAGR over 4y
Location
Addison Plant Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides civil engineering and groundworks services including earthworks, deep drainage installation, road and sewer construction, site preparation, and in-situ structures. Also offers plant hire…
Serves B2B clients delivering infrastructure, commercial and industrial developments, including developers, main contractors and project owners needing civil engineering support across the North…
Financial Health
HealthyHealthy · Growing, Hiring · 5% CAGR over 4y
Location
Harrelli Communications Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides telecommunications infrastructure services for fibre optic networks, including planning and surveying, civil groundworks, ducting, cable installation, fibre splicing, network build,…
Serves UK telecom network operators, fibre infrastructure owners and build partners, including alt-net providers, that outsource large-scale full-fibre rollout and network construction programmes.
Financial Health
StrongStrong · Growing, Hiring · 46% CAGR over 2y
Location
SITEWIDE SOLUTIONS LIMITED
Trajectory
1y · 2025–NowFinancial Health
Insufficient historyInsufficient history
Location
Sr Engineering Maintenance Services Ltd
Trajectory
1y · 2025–NowFinancial Health
Insufficient historyInsufficient history
Location
HMH Contracts Ltd
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsProvides civil engineering and groundworks services for construction projects, including installation of roads, drainage and sewer systems, and external works. Works with developers and contractors…
Serves construction and property development clients in the North East, Yorkshire and the Humber, including organisations commissioning civil engineering, groundworks, roads, sewers and external…
Financial Health
StableStable · Hiring · 14% CAGR over 3y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides road surfacing and civil engineering services including asphalt surfacing, cold milling, line marking, and construction of roads and pathways. Also offers adoption packages and plant and…
Serves commercial clients, contractors, developers and domestic customers in the North East and wider North of England with road, pathway and surfacing project needs.
Financial Health
StrongStrong · Hiring · 44% CAGR over 4y
Location
Ohmyfibre Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides fibre optic infrastructure installation services for telecommunications networks, including civils groundwork, underground and overhead cabling, test/rod/rope duct preparation, fibre…
Serves UK telecom network operators, broadband providers and infrastructure delivery contractors needing fibre rollout partners, including firms working on BT Openreach, Virgin Media and gigabit…
Financial Health
StrongStrong · Hiring · 123% CAGR over 2y
Location
M D Hartley's Ltd
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
Location
FRANK WIND OPERATIONS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · -62% CAGR over 4y
Location
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How Middlesbrough Civil Engineering companies work and how to sell to them
What they do
Middlesbrough civil engineering firms usually earn revenue by delivering project work rather than by selling retained advice. Contracts tend to cover groundworks, drainage, highways, utilities interfaces, enabling works, repairs and maintenance packages around industrial and infrastructure assets. Pricing is normally tendered as fixed-price, schedule-of-rates or cost-reimbursable work, with margins shaped by labour, plant, materials, subcontractor risk and variations. Larger contractors may package design coordination, site supervision and compliance management into the delivery price; smaller operators often sit further down the chain as specialist subcontractors.
Who they sell to
Most buyers are organisations with assets to build, maintain or alter: councils, utilities, port and industrial estate operators, housing and regeneration bodies, and principal contractors managing larger schemes. The practical sponsors are often project managers, commercial managers, quantity surveyors, heads of infrastructure, estates directors or procurement teams, with health-and-safety and finance functions influencing award decisions. Sales cycles tend to follow framework entry, pre-qualification, tender response and commercial negotiation rather than speculative outreach alone. Smaller packages can be relationship-led, but higher-risk work usually requires evidence of insurance, accreditation, site competence, method statements and relevant project history.
What they buy
Civil engineering contractors tend to spend on bidding, estimating and project controls software, alongside finance systems that handle applications for payment, retentions, subcontractor invoices and margin reporting. Site-facing teams also buy health-and-safety management tools, document control, training, plant and fleet management, workforce scheduling, and equipment hire. Professional services needs are fairly recurring: insurance broking, legal support for contracts and disputes, accountancy, tax, payroll, environmental advice and recruitment for site managers, engineers, quantity surveyors and machine operators. Marketing spend is usually practical, focused on framework positioning, case evidence, accreditations and local buyer visibility.
Why and how to sell to them
Buying intent often appears when a contractor moves from ad hoc subcontracting into framework work, takes on more direct labour, adds commercial leadership or starts bidding for larger packages. Cash-flow pressure is a common trigger because payment timing, retentions, materials inflation and variation disputes can expose weak controls. Sellers are more credible when they link the pitch to tender win rates, safer site delivery, fewer rejected applications for payment, faster close-out of defects or clearer evidence for Construction (Design and Management) duties. Middlesbrough firms may respond better to practical Teesside project references than broad construction-sector messaging.
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 Middlesbrough
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Frequently asked questions
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