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Waste Management Companies in Swansea: 70 Active Firms (2026)
Waste management companies collect, transport, treat, recycle, store or dispose of waste across Swansea and its surrounding area.
Procurement is usually split between local authority commissioning, construction and demolition sites, facilities management, manufacturing, retail and property operations. Buyers tend to specify by waste stream, collection cadence, site access, paperwork and compliance evidence, rather than by a generic service bundle. Engagements can be recurring trade-waste contracts, depot-backed recycling arrangements, skip and container provision, or project clearances where treatment and onward disposal must be documented. The better fit is usually an operator with staffed capacity, vehicles, permitted or exempted sites where needed, and the administrative discipline to support regulated business-to-business work.
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Swansea has 70 trading waste management companies, a local cohort that appears weighted towards operators serving organisational waste rather than purely domestic odd-job work. Together they employ a reported 781 people, so the sector has a visible labour footprint in yard operations, driving, compliance administration and customer scheduling. The mix includes 7 companies above £5M turnover and 10 incorporated since 2022, suggesting a market where established capacity matters, but new entrants still appear around collection, recycling and specialist-handling niches.
Permit and registration status does much of the market sorting in waste management. GOV.UK guidance from the Environment Agency and Defra says businesses may need an environmental permit where they use, recycle, treat, store or dispose of waste or mining waste, with routes through registered exemptions, standard rules permits and bespoke permits. Operating without a required permit is treated as breaking the law. Carrier, broker and dealer registration also matters for those transporting waste, arranging handling by others, or buying and selling waste. For Swansea operators, the practical complication is devolution: Wales has its own registration and permitting route rather than simply following the England process.
Swansea's waste operators appear likely to remain shaped by compliance cost, contract discipline and access to transfer, treatment and recycling capacity. Larger operators tend to defend their position through depots, vehicles, permits and public-sector purchasing references; smaller specialists can still win where waste streams are awkward, local relationships matter, or buyers need short-notice collections. Consolidation remains plausible because fixed assets reward utilisation and compliance mistakes carry downside. The sector therefore looks less like a high-churn start-up market than a service infrastructure market, with new entrants most credible when they attach to a specific waste stream or underserved buyer segment.
70
Active firms
2026
7
Above £5M turnover
Swansea-area cohort
10
Incorporated since 2022
Swansea-area cohort
Key facts
About 10% of the trading cohort reports turnover above £5M (7 of 70 firms) — the rest sits below that revenue band.
14% of the cohort was incorporated since 2022 (10 firms), so a sizeable share is in its first few filing cycles.
Welsh operators follow separate registration and permitting routes from England, where the Environment Agency process uses registered exemptions, standard rules permits and bespoke permits.
Operating without a required waste carrier, broker or dealer registration can lead to an unlimited fine.
Defra estimates that the UK generated 191.2 million tonnes of total waste in 2020, including 40.4 million tonnes of commercial and industrial waste.
Defra reports 25.2 million tonnes of local authority managed waste in England in 2024/25, with 50.3% sent for incineration and 5.5% to landfill.
The UK waste-from-households recycling rate was 44.6% in 2023, compared with Wales at 57.0% and the EU municipal-waste recycling figure of 48% in 2024.
Top Swansea Waste Management companies
GAVIN GRIFFITHS & DAUGHTERS PROPERTIES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides total waste management and recycling services including commercial skip hire, waste collection, soil treatment and landfill diversion. Also supplies aggregates, haulage and contracting…
Serves construction sites, commercial and industrial organisations, public-sector bodies, offices and homeowners in Swansea and South Wales, with customers spanning business, public sector and…
Financial Health
HealthyHealthy
Location
Perdue Recycling Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides skip hire and waste management services, including supply and collection of skips in multiple sizes, waste clearance, recycling, demolition works, and asbestos removal for domestic,…
Serves domestic, commercial and industrial customers in Swansea and surrounding areas, including households, builders and project teams needing waste handling, demolition or asbestos removal support.
Financial Health
StableStable
Location
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides scrap metal recycling services, purchasing ferrous and non‑ferrous metals, catalytic converters and scrap jewellery. Offers metal testing, factory clearance, and skip or container supply…
Serves trade customers, factories, scrap metal dealers, vehicle-related businesses and individuals with scrap metal, catalytic converters or scrap jewellery in Neath and across South Wales.
Financial Health
StrongStrong · Growing · 0% CAGR over 3y
Location
Brisco Waste Disposal Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides waste management and disposal services including domestic and commercial skip hire, waste haulage, and operation of a licensed waste transfer station. Specialises in handling construction…
Serves domestic and commercial customers across South Wales, including Swansea, Neath, Llanelli, Ammanford and Port Talbot, with a particular focus on construction and demolition waste customers.
Financial Health
WeakWeak · -6% CAGR over 4y
Location
MATTHEWS COMMERCIAL SERVICES LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides confidential shredding and recycling services for businesses and individuals, destroying paper documents, IT media and equipment, X-rays, and vehicle number plates, with options for one-off…
Serves businesses and the general public, including organisations with bulk confidential waste and individuals clearing home offices, with one-off or regular collection needs around Swansea/South…
Financial Health
HealthyHealthy · Hiring · 4% CAGR over 4y
Location
BLUE ROCK DEMOLITION LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides demolition services for commercial and construction projects, including site clearance, asbestos removal, waste disposal, recycling and land reclamation. Operates demolition plant and…
Serves construction and property development clients, including commercial, residential and civil engineering project owners involved in redevelopment, infrastructure and land reclamation projects.
Financial Health
StrongStrong · Growing, Hiring · 68% CAGR over 4y
Location
Abertawe Metal Recycling Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsOperates a scrapyard providing metal recycling for ferrous and non‑ferrous metals, vehicle scrapping, and purchasing of catalytic converters. Also collects and processes uPVC and tyres, offering…
Serves trade customers and private individuals in Swansea, Port Talbot, Ammanford and nearby areas needing scrapyard, metal, vehicle, uPVC, tyre and catalytic converter recycling services.
Financial Health
HealthyHealthy · -11% CAGR over 4y
Location
S AND G SOILS LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsSupplies topsoil, sand, stone and other aggregates in bulk and provides haulage services. Also offers excavation material removal, inert waste disposal and tipping facilities, and supplies materials…
Serves construction and civil engineering contractors, developers, landscapers and equestrian facility operators needing bulk materials, haulage, tipping or inert waste services, with emphasis on…
Financial Health
WeakWeak · Hiring · 6% CAGR over 5y
Location
SWAN ALLOY UK LTD.
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsRecycles aluminium scrap and dross, converting post‑consumer and industrial aluminium waste into remelt secondary ingots, molten metal, and wrought or cast alloys. Supplies aluminium products and…
Serves B2B customers in the aluminium industry, including manufacturers and metal traders needing wrought or cast alloys, RSI or molten metal, and organisations with aluminium scrap or dross.
Financial Health
StableStable · Profitable · 0% CAGR over 3y
Location
Swansea Drydocks Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides ship repair, maintenance and conversion services, and carries out end‑of‑life ship recycling. Prepares inventories of hazardous materials, dismantles vessels, and recovers materials and…
Serves B2B maritime customers, including ship owners, operators and marine asset managers seeking vessel maintenance, conversion, hazardous materials inventory support and end-of-life recycling.
Financial Health
WeakWeak · -4% CAGR over 4y
Location
TECHLAN LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsSupplies recycled silicone release papers and films, including Re‑Liner products. Uses a recycling process to recover waste silicone release liners and remanufacture them for use in labels, adhesive…
Serves B2B manufacturers and converters using silicone release liners, including labels, automotive, print and graphics, adhesive tapes, packaging, composites and other industrial applications.
Financial Health
StrongStrong · Growing, Hiring · 14% CAGR over 3y
Location
A J Powell Mobile Welding Ltd
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
HealthyHealthy · -45% CAGR over 3y
Location
BILL WILL WASTE MANAGEMENT LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Hiring · 32% CAGR over 4y
Location
RUNTECH LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides vehicle hire including cars, vans and heavy goods vehicles, along with road haulage and plant transport. Delivers industrial site services such as scrap metal management, environmental…
Serves heavy industrial and large site operators across the UK, alongside commercial fleets and retail customers needing vehicle hire. Targets organisations managing complex site operations,…
Financial Health
HealthyHealthy · Profitable, Hiring · 9% CAGR over 3y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak
Location
Lpm Waste Management Ltd
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
WeakWeak · 0% CAGR over 2y
Location
RESPONSE SUPPORT SERVICES LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
WeakWeak · 0% CAGR over 1y
Location
Trinity Metals (Swansea) Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · -10% CAGR over 4y
Location
Tyregen UK Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed · 0% CAGR over 4y
Location
Bos Resources Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · 0% CAGR over 5y
Location
LODCO LTD
Trajectory
1y · 2024–NowFinancial Health
Insufficient historyInsufficient history
Location
Freezeramp Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides waste management and recycling services including waste collection, skip hire, and waste disposal through a recycling and recovery facility. Produces and supplies recycled aggregates and…
Serves construction, civil engineering and utility companies, plus local businesses and households needing skip hire or waste disposal in South West Wales.
Financial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
BROWNS WASTE MANAGEMENT AND RECYCLING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides skip hire, commercial waste collection and recycling services, supplying containers from 240–1100 litres and 2–14 yard skips for domestic, commercial and industrial waste, with delivery,…
Serves domestic customers plus commercial and industrial businesses in Llanelli, Bridgend, Swansea, Cardiff and wider South Wales.
Financial Health
HealthyHealthy · Hiring · 17% CAGR over 4y
Location
CWM ENVIRONMENTAL LIMITED
Trajectory
2y · 2020–NowFinancial sub-scores
Computed from 2 filingsOperates waste management and recycling facilities for households and businesses, providing skip hire, waste collection, materials recycling, green waste composting, confidential waste disposal and…
Serves households, local businesses and commercial organisations in West Wales, especially those with waste, recycling and disposal requirements; also serves professional and amateur gardeners.
Financial Health
HealthyHealthy · Profitable, Hiring · 11% CAGR over 1y
Location
Derwen Plant Company Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsOperates a waste recycling and recovery facility providing waste collection, skip hire and disposal services. Processes inert waste to produce recycled aggregates, and offers muckaway and haulage…
Serves construction, civil engineering and utility businesses in South West Wales, along with organisations needing waste collection, disposal, skip hire, muckaway and recycled aggregate supply.
Financial Health
StableStable · 0% CAGR over 2y
Location
Trajectory
2y · 2022–NowFinancial sub-scores
Computed from 2 filingsProvides collection and recycling of waste tyres from garages, farms and other commercial users. Processes tyres for disposal and produces side wall discs and tyre bales, and offers recycling of…
Serves motor trade businesses, fast-fit operators, independent garages, farmers, agricultural contractors, landowners, forestry operators, amnesty sites, haulage and coach companies, plus the general…
Financial Health
StableStable · -43% CAGR over 1y
Location
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides recycling and waste management services for businesses, including collection and processing of plate and window glass, uPVC and mixed rigid plastics. Also handles wood and general waste…
Serves businesses across Wales and the wider UK, including construction and industrial firms, window/uPVC and glass waste producers, municipal waste centres, and commercial sites needing skip-based…
Financial Health
StableStable · -19% CAGR over 4y
Location
Stiens Haulage Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides haulage and waste management services, operating tipper trucks to transport materials and waste. Collects waste, delivers haulage for bulk loads, and processes and sorts waste at a recycling…
Serves local businesses, tradespeople and households in Swansea and Wales needing haulage, skip hire and waste recycling services.
Financial Health
StableStable · -9% CAGR over 2y
Location
CarmarthenshireMetalRecycling Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides scrap metal and vehicle recycling services, including collection and processing of end‑of‑life vehicles, catalytic converters, and ferrous and non‑ferrous metals. Also carries out metal…
Serves motorists with end-of-life or MOT-failed vehicles, plus commercial, industrial and demolition customers needing scrap metal collection or drop-off across South Wales.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
DAVIES SKIPS LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides skip hire services for domestic and commercial customers, offering mini, midi and maxi skips for waste removal. Operates a waste transfer station handling collected waste and supporting…
Serves homeowners, landlords, tradespeople and local businesses needing domestic or commercial skip hire within a 20-mile radius of Port Talbot, including Neath.
Financial Health
WeakWeak · -10% CAGR over 3y
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides washroom hygiene services and healthcare waste management, including sanitary and clinical waste collection, sharps disposal, offensive and pharmaceutical waste handling, and hazardous waste…
Serves businesses and public-sector organisations in Wales, including commercial and industrial sites, healthcare providers, dental practices, optometry and audiology clinics, and councils managing…
Financial Health
StableStable · 0% CAGR over 2y
Location
NAPPICYCLE LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides recycling services for used disposable nappies, using processing technology to recover plastics and cellulose fibres. Works with local authorities and partners to collect nappy waste and…
Serves local authorities and councils, particularly waste and recycling teams seeking to divert disposable nappies from landfill and meet sustainability or government recycling targets.
Financial Health
StableStable · Hiring · 18% CAGR over 3y
Location
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides washroom hygiene services and collection and treatment of clinical, sanitary and hazardous healthcare waste. Supplies washroom equipment, hygiene consumables, sharps disposal units, nappy…
Serves businesses and public sector organisations in Wales, including healthcare providers, dental practices, optometry and audiology clinics, industrial sites, councils, and some households with…
Financial Health
StableStable · Hiring · 3% CAGR over 3y
Location
T D TYRE RECYCLING LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides collection, recycling and disposal of waste tyres for garages, farms and other commercial users. Handles tyres of various sizes, manufactures side wall discs for agricultural silage pits,…
Serves motor trade firms, fast-fit operators, independent garages, farmers, agricultural contractors, landowners, forestries, amnesty sites, haulage and coach companies, plus the general public…
Financial Health
StableStable · 0% CAGR over 4y
Location
Carmarthenshire Recycling & Environmental Services Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides waste haulage and waste management services, including skip hire, rubbish clearance, septic tank and cesspit emptying, drain unblocking, asbestos removal, and operation of a waste transfer…
Serves domestic households and commercial customers needing waste, skip hire, septic tank, drainage, rubbish clearance and asbestos services across South and West Wales, including Carmarthenshire,…
Financial Health
StableStable · -14% CAGR over 4y
Location
Loc Waste Management Ltd
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StableStable
Location
Monolithic Environmental Services Ltd
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides asbestos removal, abatement and encapsulation services, conducts asbestos surveys, and offers guidance on asbestos management. Also installs and maintains industrial insulation, cladding and…
Serves B2B commercial and industrial property owners, facilities managers and contractors with asbestos, insulation, cladding and fire protection requirements.
Financial Health
WeakWeak · -7% CAGR over 3y
Location
Crynant Skips and Recycling Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides skip hire and waste collection services, supplying mini, midi, large, enclosed and lockable skips, as well as roll‑on roll‑off containers for larger projects, with scheduled and same‑day…
Targets households, tradespeople and businesses undertaking waste-clearance or larger project work across South-West Wales, including Swansea, Llanelli, Gower, Bury Port, Porthcawl and Abercrave.
Financial Health
StrongStrong
Location
MCKENNA WASTE LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable
Location
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsCollects waste agricultural polythene from farms for recycling and processes it into recycled plastic materials used to produce products such as construction film, bin bags, plastic lumber, fencing,…
Serves farmers and agricultural businesses across the UK, particularly those handling waste agricultural polythene, plus buyers of recycled plastic alternatives for fencing, decking, street…
Financial Health
StableStable · Hiring · 22% CAGR over 2y
Location
Jetsweep Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides road sweeper hire on a short- and long-term basis, with self-drive or operator‑driven vehicles. Delivers road and surface sweeping for construction, industrial and residential sites, and…
Serves local authorities, construction sites, industrial operators and residential clients across South and Mid Wales needing short- or long-term road sweeper hire and gully cleaning support.
Financial Health
StableStable · 0% CAGR over 4y
Location
Crynant Plant and Construction Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides construction and civil engineering services including groundworks, enabling works, plant and transport services, and skip hire for public and private sector construction projects and clients.
Serves public sector organisations and private customers requiring construction, civil engineering, groundworks, transport, enabling works and skip hire services.
Financial Health
HealthyHealthy · -4% CAGR over 4y
Location
R W K LEWIS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable
Location
SPILL RESPONSE WALES LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides emergency environmental spill response services, including containment, assessment and cleanup of oil, fuel and chemical pollution incidents. Handles domestic oil tank leaks, contaminated…
Serves homeowners, premises managers, industrial sites and environmental or contract managers across Wales dealing with oil, fuel or pollution incidents, including domestic oil tank leaks.
Financial Health
StableStable · -89% CAGR over 2y
Location
JOHN JONES & SON LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides haulage and plant hire services using a fleet of tipper lorries and JCB machinery. Carries out site clearance and bulk muck away, and supplies screened topsoil, compost mixes, and recycled…
Serves construction firms, utilities, landscaping companies, environment agencies, lawn turf suppliers and private customers across Wales needing haulage, site clearance, aggregates, topsoil or plant…
Financial Health
HealthyHealthy · -2% CAGR over 2y
Location
Crynant Plant Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plant and construction contracting services including groundworks, civil engineering, enabling works, haulage and transport services, and skip hire for public sector and private sector…
Serves public sector organisations, construction and civil engineering contractors, property developers, local businesses, and private domestic customers needing skip hire, groundworks, transport or…
Financial Health
HealthyHealthy · Hiring · 26% CAGR over 4y
Location
CRES ENERGY LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak
Location
HOLMES CONTRACTING LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong
Location
S & M PALLETS LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies new and recycled wooden pallets, providing pallet repair and recycling services and purchasing surplus pallets for refurbishment. Also manufactures wooden crates and pallet tops and offers…
Serves businesses with supply chain, warehousing and logistics needs, primarily across South Wales and via partners in England, including organisations requiring ongoing pallet and wood packaging…
Financial Health
HealthyHealthy
Location
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How Swansea Waste Management companies work and how to sell to them
What they do
Waste management firms in Swansea usually earn from a blend of recurring collection charges, container or skip hire, haulage, treatment fees, recycling income and one-off clearance work. Pricing is often tied to lift frequency, weight, waste stream, container size, contamination risk and access constraints, with higher-value work attached to awkward materials, multi-site estates or jobs needing tighter evidence trails. Some operators also make money from brokerage, where they arrange handling through third-party facilities, although that model still depends on registration and documentation. The service is operational first: vehicles, yards, crews, containers, transfer capacity and admin processes sit behind the invoice.
Who they sell to
Their customers are usually organisations with predictable waste streams or project-led disposal needs: councils, construction contractors, manufacturers, retailers, warehouses, offices, landlords, schools, healthcare-adjacent premises and facilities managers. Decision-makers tend to sit in procurement, estates, operations, finance, compliance or site management, with sustainability roles involved where recycling rates or reporting commitments matter. Single-site trade waste can be sold directly after a site survey, while council, construction framework and estate-wide work tends to involve tender portals, pre-qualification checks, insurance review and references. Buyers are rarely only buying price; they also need collection reliability, evidence of lawful handling and a supplier that will not create reputational risk.
What they buy
Most Swansea waste operators tend to spend on tools and services that keep routes moving, paperwork traceable and assets utilised. Relevant categories include route planning, fleet management, vehicle maintenance, weighbridge and ticketing systems, contract management, billing, credit control, CRM, compliance registers, document storage, HR, payroll, training, insurance and accounting. Firms handling trade waste may also need customer portals, waste transfer note workflows, reporting dashboards and payment systems. Operational spend can include containers, PPE, yard equipment, fuel, security, recruitment, driver checks, environmental consultancy and legal support for permits or contract disputes. The better sales angle is usually less about abstract efficiency and more about missed lifts, leakage, downtime, audit trails and margin per route.
Why and how to sell to them
Waste management buyers tend to evaluate suppliers when capacity, compliance or cash collection starts to strain day-to-day operations. Triggers include winning a new local authority or facilities contract, adding vehicles, opening or changing a depot, seeking a permit variation, moving into a new waste stream, hiring senior operations or finance staff, or outgrowing spreadsheet-led scheduling and invoicing. They also react to vehicle downtime, contaminated loads, late payments, failed collections and inspection pressure. Outbound should show an understanding of Welsh permitting routes, duty-of-care evidence and site logistics. Claims land better when framed around fewer missed collections, cleaner documentation, faster billing or better use of vehicles and containers.
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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