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Building Supplies Companies in Brighton: 100+ Active Firms (2026)
Building supplies companies provide construction materials, fixtures and related products to contractors and developers around Brighton.
Buying centres tend to sit with site managers, procurement teams, builders’ merchants and property maintenance operators rather than centralised enterprise functions. Engagements are usually transactional or project-led, with repeat trade built around availability, credit terms, delivery reliability and the ability to source fixtures, insulation, aggregates or adjacent materials at short notice. Manufacturers and wholesalers in this market also compete on technical documentation, counter service and logistics discipline, since delayed materials can hold up staged construction work. The practical buyer is often a contractor or developer needing supply continuity more than a long procurement exercise.
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Brighton has 112 actively trading building supplies companies in this cohort, giving the local market a fairly compact supplier base. Reported employment across those firms is 433 people, which points to a sector dominated by small employers rather than large depots or national distribution operations. Only 4 companies have turnover above £5M, while 17 were incorporated since 2022, so the area combines a long tail of established trade suppliers with a smaller intake of newer entrants. For researchers, the main point is concentration by operating scale rather than by company count alone.
Construction-product supply is shaped by the practical requirements of regulated building work, even where the supplier itself is not a regulated financial or professional-services firm. Fire-rated products, insulation, aggregates and fixtures tend to need clear product provenance, delivery paperwork and installation-facing documentation, particularly when contractors are working on residential, public-sector or insurance-sensitive projects. Market structure is also affected by physical stockholding: firms with yard space, local delivery capacity and trade-credit relationships can be more useful to builders than catalogue-only suppliers. That gives logistics and working-capital discipline a larger role than brand positioning.
The Brighton cohort appears likely to remain locally anchored, with competition centred on reliability, product availability and credit control rather than software-style scale effects. Consolidation may continue where trade suppliers can add yard capacity or broaden category coverage, but many operators are likely to stay owner-managed and service-led. Margin pressure tends to come from materials inflation, delivery costs and late-stage project changes, so suppliers with disciplined purchasing and close contractor relationships should be better placed. Newer entrants may find space in specialist categories, although generalist merchants face a market where trust and fulfilment history matter more than novelty.
112
Active firms
2026
4
Over £5M revenue
Reported revenue threshold
17
Incorporated since 2022
Newer entrants
Key facts
About 3% of the trading cohort reports turnover above £5M (4 of 112 firms) — the rest sits below that revenue band.
15% of the cohort was incorporated since 2022 (17 firms), so a sizeable share is in its first few filing cycles.
Building supplies firms sit between product manufacturers, distributors and construction teams buying against live project requirements.
Contractors and developers are the main B2B buyers, with purchasing often shaped by product availability, delivery timing and site proximity.
Brighton-area suppliers tend to cover a mix of general materials, fixtures and specialist products rather than a single procurement category.
Top Brighton building supplies companies
LANSDOWNE GREEN SIPS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides design and construction services using structural insulated panel (SIP) systems for residential and commercial buildings, including structural engineering, off‑site manufactured panel…
Serves homeowners, self-builders, architects and commercial property clients in the South East of England seeking SIP construction packages for new builds.
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
SUPERSTONE LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsSupplies quartz and porcelain slabs for residential interior surfaces such as kitchen countertops, window sills and other fixtures. Offers a range of engineered stone designs, product samples, and…
Serves a mix of homeowners, renovators and trade buyers such as designers, builders and fabricators working on residential kitchen, bathroom and home improvement projects.
Financial Health
DistressedDistressed
Location
TALL GLASS SERVICES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures and processes flat glass products including insulating glass units, toughened, laminated, fire‑resistant and painted glass. Provides bespoke cutting, drilling, shaping and lamination…
Sells mainly B2B to trade customers in the glazing, construction and joinery sectors, including installers, fabricators and contractors needing processed flat glass, glazing supplies and bespoke…
Financial Health
DistressedDistressed · -73% CAGR over 4y
Location
ATSPEED DISTRIBUTORS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsSupplies building materials and fabricated steelwork for the construction industry, including steel lintels, structural steel sections, brickwork support systems, balconies, staircases and roof…
Sells B2B to the construction industry, particularly property developers, house builders, contractors and builders’ merchants, serving residential and commercial projects across London, the Midlands…
Financial Health
StableStable · -3% CAGR over 2y
Location
A. A. TAYLOR LIMITED
Trajectory
2y · 2023–NowFinancial sub-scores
Computed from 2 filingsProvides specialist joinery services, manufacturing and installing bespoke timber windows, doors, staircases and other wood products. Works with homeowners, builders, architects and local authorities…
Serves local authorities, builders, architects and homeowners in and around Brighton & Hove with timber joinery requirements for building and property projects.
Financial Health
StableStable · -40% CAGR over 1y
Location
Window Workshop (Sussex) Limited
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsManufactures and installs uPVC windows, doors and double‑glazing systems. Supplies and fits composite doors, patio doors, conservatories, aluminium windows and doors, and roofline products including…
Serves homeowners, DIY customers and trade buyers across Sussex, particularly Peacehaven and East Sussex, seeking uPVC and aluminium window, door, conservatory and roofline products.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 1y
Location
M.T.M. Units Limited
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsManufactures sealed double glazed units and supplies and installs double glazed windows, doors, bi‑fold doors, and conservatories. Provides glass splashbacks and replacement of broken or misted…
Serves homeowners, commercial clients and trade customers needing glazing services across Sussex and surrounding areas, including Brighton and Worthing.
Financial Health
StableStable · Hiring · 2% CAGR over 4y
Location
Ion Glass Ltd
Trajectory
5y · 2019–NowFinancial sub-scores
Computed from 5 filingsDesigns, manufactures and installs bespoke structural and frameless glass systems, including balustrades, stair treads, doors, partitions, linkways, roofs and floors. Provides consultancy, CAD design…
Serves homeowners, architects, designers and building contractors, plus commercial, education, ecclesiastical, heritage, healthcare and leisure organisations with bespoke glazing project needs.
Financial Health
HealthyHealthy · 0% CAGR over 5y
Location
Octoppuss Ltd
Trajectory
5y · 2020–NowFinancial Health
Insufficient historyInsufficient history
Location
EUROPEAN LAMINATE GLASS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures and processes bespoke architectural glass products including toughened, laminated, acoustic, heated and fire‑rated glass, bent glass and double‑glazed units, supplying glazing materials…
Serves residential and commercial customers across the UK, including homeowners, builders, architects, interior designers and glazing contractors involved in bespoke glass and glazing projects.
Financial Health
StrongStrong
Location
SUSSEX ALUMINIUM SYSTEMS LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsManufactures and supplies aluminium window, door and glazing systems including bi‑fold doors, patio sliders, rooflights, curtain walling and commercial shopfront systems for residential, retail and…
Serves a mix of B2C and B2B customers in residential, commercial and retail sectors, including domestic property owners and organisations with busy commercial environments.
Financial Health
DistressedDistressed · 0% CAGR over 3y
Location
EUROPEAN TOUGHENED GLASS (SWINDON) LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures and processes bespoke architectural glass products including toughened, laminated, heated, fire‑rated and bent glass, walk‑on panels and double‑glazed units. Supplies glazing products…
Serves residential and commercial construction customers across the UK, including glazing contractors, architects, developers, builders and homeowners needing bespoke glass, mirrors and glazing for…
Financial Health
WeakWeak
Location
RON SAMMONS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsManufactures timber connectors, joist hangers, brackets and metal fixings for structural timber construction. Produces components using high‑speed presses and in‑house tooling, supplying products…
Serves B2B customers in the construction and timber building sectors, including builders, contractors, specifiers and trade buyers sourcing structural connectors, joist hangers and brackets.
Financial Health
StableStable · -91% CAGR over 2y
Location
Trojan Services Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides design and manufacture of recycled polymer infrastructure components for the rail industry, including cable protection and management systems that replace concrete in civil engineering…
Serves B2B and public-sector buyers involved in rail and mass-transit infrastructure, including civil engineering contractors, project teams and infrastructure operators.
Financial Health
StableStable · -20% CAGR over 4y
Location
STANMER KITCHENS AND JOINERY LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
DistressedDistressed
Location
NEILS STEELS LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StableStable · 4% CAGR over 2y
Location
STONE OF DESTINY LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
DistressedDistressed · 0% CAGR over 1y
Location
CARRICKMORE LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies bathroom suites, shower pods, wall panels, tiles and indoor saunas, along with stoves, electric fires, fireplaces, radiators and mirrors. Also provides doors, flooring, plumbing and heating…
Serves homeowners and property renovators planning bathroom, heating, flooring, tiling and general home improvement projects, with ranges also relevant to builders and plumbing/heating trades.
Financial Health
StrongStrong
Location
HIGH PERFORMANCE GLASS LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak
Location
MC Martin Contractors Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · 0% CAGR over 4y
Location
T.E. Tilley Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides stonemasonry services including design and carving of memorial headstones, bespoke stonework, and restoration of historic stone features. Also cuts and supplies stone for fireplaces,…
Serves private customers, churches, local authorities and trade clients in Brighton, Worthing and wider Sussex, including households and organisations responsible for memorials, cemeteries, monuments…
Financial Health
WeakWeak · Hiring · 7% CAGR over 4y
Location
ACI HOME IMPROVEMENT LIMITED
Trajectory
1y · 2025–NowFinancial Health
Insufficient historyInsufficient history
Location
Brighton Wooden It Be Nice Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
DistressedDistressed
Location
LION MEWS JOINERY LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed · -68% CAGR over 4y
Location
Brads Woodcraft Limited
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsFinancial Health
StrongStrong · Growing · 0% CAGR over 3y
Location
SET MAKERS LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
StableStable
Location
Dan Clark Furniture Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · Hiring · 19% CAGR over 4y
Location
A. Simmons Carpentry Ltd.
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · Hiring · 19% CAGR over 4y
Location
EC Event Carpentry Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
HealthyHealthy · 0% CAGR over 2y
Location
SUSSEX READY MIX CONCRETE LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies ready‑mix and on‑site mixed concrete and screed for domestic and commercial construction projects. Provides specialist concrete mixes, concrete pumping, aggregates, and grab hire, with…
Serves homeowners, builders, contractors and commercial project teams in Sussex, including Haywards Heath, Brighton and Worthing, across domestic works, construction projects, yards and car parks.
Financial Health
WeakWeak · Hiring · 14% CAGR over 4y
Location
MCHUGH CONCRETE LIMITED
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsSupplies ready-mix concrete for domestic and commercial construction projects. Delivers and mixes concrete on site to required specifications and volumes, offering multiple mix grades, floor screeds,…
Sells to both domestic/DIY customers and commercial construction buyers needing ready-mix concrete, including homeowners on building projects and trade customers such as builders, brickwork…
Financial Health
HealthyHealthy · Growing · 0% CAGR over 3y
Location
WENBAN-SMITH LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsSupplies timber and wood-based building materials including sheet materials, MDF, plywood, doors, flooring, decking and gates. Provides machining and processing services such as board cutting, CNC…
Serves trade customers such as builders, joiners and carpenters, alongside DIY and home improvement customers in Sussex seeking timber and wood-related materials.
Financial Health
DistressedDistressed · -5% CAGR over 1y
Location
M L I Building Products Limited
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsSupplies double glazing and building products including uPVC and aluminium windows, doors, conservatories, roof lanterns and rooflights. Also provides cladding, fascias, soffits, guttering, fixings…
Serves tradespeople and homeowners undertaking home improvement projects across Worthing, Brighton, Hove, Bognor Regis and wider West Sussex, with a trade counter focus for local installers and…
Financial Health
WeakWeak · 0% CAGR over 1y
Location
JOHNSON'S (INSULATION) SUPPLIES LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsSupplies insulation materials for the construction trade, including acoustic, thermal, floor, roof and wall insulation, phenolic boards, fire protection products and related accessories. Offers…
Serves building trade businesses, contractors, developers and allied trades across West Sussex, Kent, Hampshire and the South of England, including housing developments and industrial warehouse…
Financial Health
StableStable · -90% CAGR over 2y
Location
Meaker Fencing Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsSupplies fencing materials and related outdoor products, including fence panels, timber posts, trellis, chain link and weld mesh fencing, gates, fixings, and concrete fencing products. Also sells…
Sells to fencing contractors, DIY customers and property owners, plus local councils, schools, agricultural sites and industrial projects across East and West Sussex.
Financial Health
StableStable · -12% CAGR over 4y
Location
TRADESTAR GLAZING SYSTEMS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies uPVC and aluminium glazing products to the trade, including windows, bi-fold and sliding doors, composite front doors, roof lanterns, rooflights, vertical sliders, and integral blinds. Also…
Serves trade customers such as window and door installers, builders and glazing contractors, with local delivery around East Sussex and nationwide delivery for integral blind orders.
Financial Health
WeakWeak · 0% CAGR over 4y
Location
PROJECT GLAZING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies and installs aluminium and PVCu windows, doors and glazed systems for residential, commercial and trade projects. Products include bi‑folding and sliding doors, roof lanterns, flat roof…
Serves commercial clients, homeowners and trade buyers across South East England, with a focus on new-build residential developers and glazing projects of varying sizes.
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
Saxa Glass Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures insulating and sealed glass units for glazing applications. Processes flat glass to produce mirrors, painted splashbacks, and drilled or polished glass, and supplies frameless flat glass…
Serves trade glazing firms, builders, contractors and local homeowners in West Sussex, including regular B2B supply to glass and installation businesses.
Financial Health
DistressedDistressed · 0% CAGR over 4y
Location
PREFAB STEEL COMPANY LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDesigns, fabricates, and installs structural and architectural steelwork for construction projects. Provides workshop welding and steel fabrication using MMA, MIG and TIG processes, and supplies…
Serves builders, contractors, architects, property developers and private customers needing project-based steelwork across West Sussex and the Home Counties.
Financial Health
StableStable · -5% CAGR over 2y
Location
Ashdown Steel Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFabricates and supplies structural and architectural steelwork for the construction industry. Provides on-site measuring, estimating, drawing, fabrication and delivery services, and site fitting of…
Serves construction industry customers, including builders, contractors and project teams needing structural or architectural steelwork and related steel products.
Financial Health
StableStable · -11% CAGR over 4y
Location
ORE SUPPLIES LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsSupplies and delivers construction materials including primary and recycled aggregates, sand, gravel, topsoil and ready‑mix concrete, and provides muck away and waste management services for…
Serves B2B construction, groundworks, civil engineering, demolition and landscaping contractors needing site materials, muck-away and waste-management support.
Financial Health
HealthyHealthy · 0% CAGR over 3y
Location
Beacon Fencing Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsSupplies fencing materials and garden structures for domestic and commercial use, including fencing panels, posts, gates, decking, sheds, summerhouses, trellis, screening, and wrought iron products.…
Serves domestic and commercial customers across Sussex, Hampshire, Surrey and Kent, including homeowners, gardeners, landowners and businesses needing fencing, gates, sheds and garden materials.
Financial Health
WeakWeak · 0% CAGR over 2y
Location
Freshfield Lane Brickworks
Manufactures clay construction products including facing bricks, clay pavers, special‑shaped bricks, architectural terracotta and prefabricated brick components. Produces handmade, wirecut and stock…
Serves B2B construction customers, including architects, specifiers, developers, housebuilders, contractors and brick distributors involved in residential, commercial and architectural building…
Location
SOUTHDOWN CONSTRUCTION (METALWORK) LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDesigns, manufactures and installs architectural metalwork for construction projects, including feature staircases, balconies, balustrades, galvanised metalwork, aluminium cladding, stainless steel…
Serves main contractors and property developers procuring large construction packages, including major UK contractors, for projects in London, Sussex, Surrey, Kent, Hampshire and the Home Counties.
Financial Health
DistressedDistressed · -37% CAGR over 2y
Location
A & S SCAFFOLDING SUPPLIES LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsSupplies new and used scaffolding systems and components, including Kwikstage and Cuplok, scaffold tubes, boards and fittings. Also sells tube clamps, acrow props, access equipment, debris netting,…
Serves B2B construction and access-equipment buyers, including scaffolding contractors, builders, site managers and trades purchasing for projects, with some direct online sales to individuals…
Financial Health
HealthyHealthy · -68% CAGR over 4y
Location
Natural Angle Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsSupplies kitchens and bathroom products including cabinets, taps, baths, showers and vanity units. Retailer of natural stone, porcelain and ceramic tiles, wood flooring and outdoor paving, and…
Serves homeowners renovating interiors and exteriors, plus trade customers such as builders, designers, architects and installers working on kitchens, bathrooms, flooring and stone projects.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
South Coast Steel Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDesigns, manufactures and installs bespoke architectural metalwork including steel and glass staircases, spiral and cantilever stairs, glass balustrade systems, Juliet balconies, and walkout balcony…
Serves homeowners, architects and tradesmen across Sussex and Kent, particularly those involved in residential building, renovation or extension projects requiring staircases, balconies or balustrade…
Financial Health
StrongStrong · Growing, Hiring · 9% CAGR over 4y
Location
South East Roofing Supplies Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies roofing and building plastic materials through an online store, including guttering, downpipes, fascias, soffits, cladding, roof tiles, membranes, treated battens and roof windows, along…
Serves roofing contractors, builders, property maintenance trades and DIY customers buying building plastics and roofing materials, with delivery emphasis across South East England.
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
Stainless Steel Fixings Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures and supplies stainless steel fixings and support systems for the construction industry, including stone restraints, brickwork supports, wall ties, anchors, channel supports and masonry…
Sells B2B to construction contractors, façade and masonry installers, and designers/specifiers involved in stone and masonry cladding projects, including customers needing made-to-order fixings for…
Financial Health
StableStable · -4% CAGR over 4y
Location
CITY CONCEPTS LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDesigns, manufactures and installs glass partitioning systems, door systems and modular glazing solutions for commercial interiors, including office fit-outs, acoustic partitions and demountable wall…
Serves B2B clients involved in commercial workspace projects, including office occupiers, landlords, architects, interior designers and fit-out contractors.
Financial Health
StrongStrong · Growing, Hiring · 16% CAGR over 4y
Location
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How Brighton building supplies companies work and how to sell to them
What they do
Revenue usually comes from product margin on physical materials, with extras from delivery, cutting, collection, returns handling, trade counter sales and sometimes light advisory work around specification. Many Brighton suppliers operate account-based relationships with local trades, so pricing tends to mix list prices, negotiated discounts, project quotations and credit terms rather than a single subscription model. Engagements range from small counter purchases to staged supply for refurbishments, repairs and new-build packages. Manufacturers and wholesalers may also sell through merchants, installers and maintenance firms, which makes availability, substitution knowledge and accurate invoicing part of the commercial offer.
Who they sell to
Typical customers are contractors, small developers, property maintenance teams, fit-out firms, specialist installers and other merchants needing local supply cover. The named buyer is often an owner-manager, quantity surveyor, site manager, procurement lead or operations manager; finance teams become more involved where credit limits, overdue accounts or repeat monthly spend are material. Short-cycle orders may close through trade counters, phone or email, while project packages usually require quotation, delivery scheduling and account approval. Public-sector or larger property customers tend to use approved-supplier lists, framework-style purchasing or facilities-management intermediaries rather than open-ended browsing.
What they buy
Building supplies firms tend to spend on systems and services that reduce manual stock work and protect margin. Common categories include inventory and purchasing software, accounting, credit control, delivery routing, fleet management, warehouse equipment, point-of-sale tools, trade-account ecommerce, product information management and document storage for safety sheets, warranties and certification. They may also buy insurance, trade credit support, HR advice, payroll, recruitment for drivers and yard staff, local marketing, search advertising and outsourced bookkeeping. Infrastructure spend is practical: racking, forklifts, scanners, vehicles, yard security, phones, broadband and payment hardware matter because fulfilment still depends on physical movement.
Why and how to sell to them
Buying triggers tend to appear when a supplier opens or relocates a yard, adds delivery capacity, expands into a new product category, hires an operations or finance lead, or outgrows spreadsheet-led stock control. Pain points are usually concrete: missed deliveries, slow quotes, price changes from upstream suppliers, cash tied up in inventory, customer credit risk and paperwork needed for regulated building work. Outbound works better when it links to those frictions rather than abstract efficiency claims. Useful angles include reducing order errors, improving margin visibility, shortening quote-to-invoice cycles, protecting credit exposure and helping staff find product or delivery information without phoning the yard.
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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