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Rubber/Plastics Companies in Liverpool: 61 Active Firms (2026)
Rubber and plastics manufacturers mould, extrude and fabricate polymer products for industrial and consumer supply chains in the Liverpool area.
Buying centres tend to sit in procurement, operations and engineering rather than marketing or consumer merchandising. Typical buyers are industrial manufacturers, commercial distributors and consumer-goods suppliers that need repeatable polymer components, converted materials or finished parts, often to fit existing production schedules. Engagements are usually practical and specification-led: tooling, material selection, tolerances, lead times, quality documentation and delivery reliability matter before brand. The better-fit suppliers in Liverpool and the surrounding metropolitan area are operating manufacturers, not merchants or installers, with production teams and site-level capacity behind the sales relationship.
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Liverpool has 61 actively trading rubber and plastics manufacturers in this list, a compact local cohort within a specialised manufacturing niche. Reported employment across the group totals 866 people, so the footprint is not just a set of dormant or paper entities. Scale is uneven: 10 companies have turnover above £5M, while 5 were incorporated since 2022. That mix points to a mature production base with a small stream of newer entrants, rather than a market mainly made up of recently formed firms.
Product conformance sits close to the sales process in this market. Industrial customers commonly expect evidence that materials, tolerances and finishing processes match their own specifications, while consumer-facing supply chains add closer scrutiny around safety, labelling and repeatability. Waste handling and polymer substitution also affect procurement conversations, particularly where buyers are trying to reduce scrap or move away from less favoured materials. For researchers, that means the relevant divide is often between qualified production suppliers and firms that only trade, install or distribute polymer goods.
Demand appears likely to remain tied to existing industrial and consumer supply chains rather than a venture-style expansion cycle. Firms with tooling knowledge, repeatable quality systems and customer-approved processes tend to be harder to displace, but smaller workshops may face pressure where buyers consolidate supplier panels or ask for more evidence on material choices and waste reduction. Scarcity of larger local operators suggests acquisition interest could focus on capacity, skilled teams and customer approvals, while new entrants may find qualification cycles slow.
61
Active firms
2026
10
Above £5M
reported turnover
5
Since 2022
new incorporations
Key facts
About 16% of the trading cohort reports turnover above £5M (10 of 61 firms) — the rest sits below that revenue band.
8% of the cohort was incorporated since 2022 (5 firms), so a sizeable share is in its first few filing cycles.
These firms mould, extrude and fabricate polymer products used in industrial and consumer supply chains.
Rubber and plastics output usually sits inside adjacent sectors, so end-market mapping has to follow customer industries rather than one standalone market.
Liverpool-area coverage gives researchers a local manufacturing lens across processing, fabrication and supply-chain roles.
Corporate structures may not mirror operating sites, so sales qualification should separate production activity from registered-entity characteristics.
Top Liverpool Rubber/Plastics companies
R L PLASTICS LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsManufactures plastic buckets and containers for industrial and commercial use, including tamper‑evident containers, paint pails, jerry cans, drums and food pots. Also provides contract plastic…
Serves businesses needing plastic containers in sectors such as paint, food, homebrew, wet wipes and industrial shipping, from small online buyers to wholesale and bulk-order customers requiring…
Financial Health
StableStable · -71% CAGR over 4y
Location
TECH FOLIEN LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures and distributes specialty polyethylene and polypropylene blown films, including LLDPE, LDPE and HDPE grades, for packaging, labels, laminating and industrial applications. Produces…
Sells B2B to converters and manufacturers in self-adhesive, laminating, silicone coating, labels and graphics, food packaging, automotive, construction, mail order and security markets, including…
Financial Health
StableStable · 2% CAGR over 4y
Location
Rubbarite Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · 0% CAGR over 4y
Location
Alpha Polymers Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsRecycles and compounds polypropylene materials. Purchases waste polypropylene in forms such as packaging, crates and regrind, processes and pelletises it into black copolymer polypropylene compounds…
Sells to UK industrial buyers in the moulding industry needing black polypropylene compounds, including manufacturers serving automotive, domestic, agricultural, drainage and water storage markets.…
Financial Health
StrongStrong · Hiring · 3% CAGR over 4y
Location
FILMPACK LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · 0% CAGR over 1y
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · -4% CAGR over 4y
Location
Liverpool Plastic Bonding Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsManufactures laminate washroom systems and fabricated panel products, including toilet cubicles, vanity units, IPS panel systems, lockers and storage units. Also provides laminate bonding, edging and…
Serves UK contractors, specifiers and facilities teams working on education, healthcare, retail, leisure, office and commercial building projects, including public-sector and private-sector sites.
Financial Health
HealthyHealthy · -12% CAGR over 3y
Location
RBH REPACKING SERVICES LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · -72% CAGR over 4y
Location
WEIR & CARMICHAEL LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · -70% CAGR over 4y
Location
SPECIALIST FRAME PVCU LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · -68% CAGR over 4y
Location
SPECIALIST TRADE FRAMES LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed · -78% CAGR over 4y
Location
M & MA SERVICES LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed · 0% CAGR over 4y
Location
Trajectory
5y · 2021–NowFinancial Health
Insufficient historyInsufficient history
Location
SPECIALIST TECHNICAL PRODUCTS LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDevelops and manufactures butyl tape products for industrial and construction applications. Provides custom formulation and product development, producing specialist tapes and trial samples designed…
Serves B2B customers in industries that use butyl tape, including manufacturers, construction and roofing suppliers, and contractors needing standard or custom products for specific applications and…
Financial Health
StableStable · -7% CAGR over 4y
Location
AC Plastics Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plastic injection moulding services, producing thermoplastic components for industrial applications. Offers design support, prototyping, toolmaking, project management, finishing and…
Serves B2B product developers and manufacturers needing plastic components, from startups to established industrial firms, across automotive, medical, construction, electronics, oil and gas, and…
Financial Health
StableStable · -3% CAGR over 4y
Location
Manufactures colour, black, white and additive masterbatch and conductive polymer compounds for plastics processing. Develops bespoke formulations used in extrusion, injection moulding and other…
Serves B2B polymer processors and manufacturers using extrusion, injection moulding, compounding, blow moulding, thermoforming and rotomoulding, across automotive, aerospace, construction,…
Location
PR PLASTICS LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides custom plastic injection moulding and manufacturing services, producing components from engineering resins. Offers prototyping, additive manufacturing (3D printing), ultrasonic welding, part…
Serves B2B OEMs and manufacturers needing local suppliers for injection-moulded plastic parts and assemblies, from prototypes to production, with emphasis on businesses seeking shorter lead times and…
Financial Health
StrongStrong · Hiring · 29% CAGR over 2y
Location
MOORE & BUCKLE (FLEXIBLE PACKAGING) LIMITED
Trajectory
3y · 2024–NowFinancial sub-scores
Computed from 3 filingsManufactures flexible packaging and bespoke pouches, including coffee bags with valves. Provides laminating, printing, die cutting, slitting and rewinding services, pouch conversion, and recovery of…
Serves B2B customers in food, coffee and tea, pharmaceuticals, cosmetics, veterinary, seed storage, and automotive/aerospace sectors, from established product teams to newer buyers seeking packaging…
Financial Health
StableStable · -11% CAGR over 2y
Location
Ts Packaging Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsManufactures vacuum‑formed plastic packaging for retail and product protection, including blister packs, clamshell packs, box inserts, transit trays and counter‑top displays. Provides packaging…
Serves product manufacturers and brands needing vacuum-formed retail and transit packaging, including buyers of blister packs, clamshell packs, box inserts, trays, counter displays and contract…
Financial Health
HealthyHealthy · Growing · 0% CAGR over 5y
Location
Pyranha Mouldings Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and manufactures whitewater kayaks for river running, creeking and freestyle paddling. Produces rotomoulded kayak models and related outfitting, accessories and merchandise, and provides…
Sells to whitewater kayakers and paddling enthusiasts worldwide, including river running, creeking and freestyle users, with products also reaching customers through specialist kayak dealers.
Financial Health
HealthyHealthy · -1% CAGR over 4y
Location
HIGHWOOD CONSULTANTS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures synthetic timber profiles from recycled plastics, supplying slats, cladding, decking, posts and other components used in furniture, doors, fencing, construction and outdoor products,…
Sells to trade and B2B customers in furniture, construction, doors and windows, fencing, decking, outdoor products, and industrial sectors, including large UK organisations needing standard or…
Financial Health
WeakWeak · -4% CAGR over 4y
Location
NOVAFLEX LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures industrial flexible hose, composite hose and ducting systems, along with dry‑release and breakaway couplings and marine loading arms. Products support transfer of air, chemicals,…
Serves B2B industrial customers in chemical, food and beverage, marine, mining, petroleum, material handling, fume control, exhaust and fire/emergency vehicle markets.
Financial Health
StableStable · Hiring · 3% CAGR over 4y
Location
HJ Foam Mouldings Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures moulded foam products including seating components for cars, buses, coaches and trains, and memory foam pillows. Produces foam parts for automotive, passenger transport, office seating,…
Serves B2B customers in automotive, passenger transport, office seating, medical and home furnishing sectors, including car, bus, coach and train seating manufacturers and related OEMs.
Financial Health
StableStable · 0% CAGR over 4y
Location
ARGUS FLUIDHANDLING LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsManufactures hydraulic and fluid‑handling components, including hose and tube assemblies, flexible and rigid pipework, and related fittings. Supplies assemblies and systems used by OEM and industrial…
Serves B2B customers across broad industrial markets, from small and medium businesses to large organisations and major OEMs requiring flexible or rigid hose and tube assembly supply.
Financial Health
DistressedDistressed · -1% CAGR over 2y
Location
Arcoframe Ltd
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsManufactures bespoke uPVC window and door frames using profile bending techniques. Produces arched, angled, round, gable and gothic frames, vertical sliders, and composite door frames, supplying…
Serves B2B trade customers, mainly window and door installers across the UK, who require bespoke uPVC arched, angled, round and other shaped frames for fitting projects.
Financial Health
HealthyHealthy · Hiring · 10% CAGR over 3y
Location
DIRECT DOORS & WINDOWS LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsManufactures composite front doors for trade customers, including traditional and contemporary styles. Produces doors with GRP facings, frames, glazing and hardware, and provides configurable design…
Serves trade customers such as door and window installers, builders and home improvement firms supplying homeowners with replacement front doors, side panels and related products.
Financial Health
HealthyHealthy · 0% CAGR over 2y
Location
Duraproducts Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures lightweight kerbing and surface water drainage systems made from recycled polymers for highways and civil engineering projects. Products include kerb units, linear drainage channels, and…
Serves civil engineering and infrastructure buyers, including highways authorities, contractors, developers and specifiers working on public realm, road, education, healthcare, leisure, retail and…
Financial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
LEY RUBBER LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures rubber extrusions, mouldings and profiles, including seals, gaskets, tubing, cords and fenders, produced to custom designs or standard profiles. Supplies elastomer and thermoplastic…
Serves B2B customers across the UK in automotive, construction, agriculture, energy, marine, rail, glazing, defence, scientific, food and medical sectors needing rubber and polymer components.
Financial Health
WeakWeak · -67% CAGR over 4y
Location
MARTLAND ROLLERS LTD.
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures rubber and polyurethane rollers and related components for industrial machinery. Produces spreader and bowed rollers, carbon fibre and composite rollers, sleeves and new roller stock,…
Serves industrial B2B customers in tissue, textile, steel, paper, packaging, film, corrugated converting and transport sectors that require rubber rollers, bespoke compounds, roller manufacture or…
Financial Health
StableStable · -13% CAGR over 4y
Location
Aquabond Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsManufactures specialist top‑coated and self‑adhesive materials including printable media, lamination and mounting films, self‑adhesive vinyl, wallpapers, and label‑stock. Provides contract coating,…
Serves B2B customers in the graphics, signage, labelling and furniture sectors, including converters, distributors and manufacturers needing specialist coated, self-adhesive or bespoke materials…
Financial Health
StrongStrong · Growing, Hiring · 5% CAGR over 4y
Location
FIBAFORM PRODUCTS LIMITED
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsManufactures glass reinforced polymer (GRP) structures including gatehouses, kiosks, equipment enclosures, cabinets and bin stores. Provides standard and bespoke designs, with fabrication, delivery…
Serves UK businesses and infrastructure operators in rail, highways, utilities, renewables, marine, construction, manufacturing, logistics, retail, sport and leisure.
Financial Health
DistressedDistressed · -3% CAGR over 1y
Location
RICHARDSONS HEALTHCARE LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures operating table mattresses, positioning pads and other patient support systems for medical device manufacturers. Provides material guidance and design support, producing foam components…
Serves B2B medical device and operating table manufacturers requiring patient support systems, mattresses and accessory pads, with customers described as being across the globe.
Financial Health
HealthyHealthy · -69% CAGR over 4y
Location
SPECIALISED INFLATABLE TECHNOLOGY LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDesigns and manufactures low‑pressure inflatable products including rescue equipment, rigid inflatable boat tubing and sponsons, air jack lifting cushions, white‑water rafts and kayaks, and…
Serves emergency services, military and industrial buyers, plus vehicle recovery operators, RIB owners/operators and leisure white-water craft customers.
Financial Health
StableStable · -11% CAGR over 4y
Location
LACS SHEETMETAL FABRICATIONS LTD
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsFinancial Health
DistressedDistressed · 0% CAGR over 1y
Location
A.O.N. Converters Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
DistressedDistressed · 0% CAGR over 5y
Location
Parkers Packaging Limited
Trajectory
2y · 2024–NowFinancial sub-scores
Computed from 2 filingsManufactures and supplies food and ice cream packaging, including paper cups, tubs, plastic containers, lids, spoons, and takeaway containers. Also provides custom printed and branded packaging,…
Sells B2B to ice cream brands, food retailers, caterers and takeaway operators needing food-grade packaging, including custom-branded containers, cups and lids.
Financial Health
StrongStrong · Growing · 4% CAGR over 1y
Location
ESS PEE FABRICATIONS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures precision machined components and supplies engineering materials including performance plastics, composites, wear and bearing materials, and heat‑resistant products. Provides CNC…
Serves B2B industrial and engineering customers needing resistant materials and machined components, including manufacturers using high-temperature, wear, bearing, ceramic and performance plastic…
Financial Health
StableStable · 1% CAGR over 4y
Location
CONTENUR (UK) LIMITED
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsManufactures and supplies urban waste collection containers and systems, including wheeled bins, litter bins, side-loading and crane-lift containers, and underground and semi-underground waste…
Serves UK local authorities, councils, municipal waste operators and urban development projects, including public realm, community and heritage sites requiring street waste and recycling…
Financial Health
StableStable · Hiring · 12% CAGR over 3y
Location
EAGLE RUBBER LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures custom rubber elastomer components including lathe‑cut gaskets, stripper rings, gasket blanks and CNC machine billets. Also provides rubber roll covering, regrinding and core repair,…
Serves B2B industrial customers worldwide, including custom seal manufacturers, slitting industry operators, and businesses needing custom rubber elastomer components in small or larger production…
Financial Health
HealthyHealthy · -69% CAGR over 4y
Location
FRAMELINE LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures and supplies made‑to‑measure uPVC and aluminium windows and doors, including casement, tilt and turn, sash, patio and bifold systems, as well as composite and PVCU entrance doors.
Serves trade installers, builders and commercial buyers, as well as homeowners seeking made-to-measure residential window and door products.
Financial Health
WeakWeak · -68% CAGR over 4y
Location
C.D.C. Heavy Textiles Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures custom PVC and vinyl products including shipping container tarpaulins, liners and trailer curtains, along with bespoke covers for boats, vehicles and equipment. Also produces promotional…
Serves shipping and logistics firms, trailer and container operators, boat and vehicle owners, brands and event organisers, plus retailers, industrial estates and local businesses needing signage and…
Financial Health
WeakWeak · 0% CAGR over 4y
Location
IMPRESTIK LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsManufactures and supplies custom printed adhesive tapes for packaging and industrial use, including PVC and polypropylene packaging tape, floor marking tape, pipe marking tape and underground warning…
Sells mainly B2B to distributors in the packaging tape industry, while also serving trade buyers and the public. Targets organisations needing branded packaging tape and specialist marking tapes,…
Financial Health
HealthyHealthy · Hiring · 12% CAGR over 4y
Location
WARWICK DEVELOPMENT (NORTH WEST) LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFabricates and supplies uPVC and aluminium windows, doors and roof lanterns for trade customers. Manufactures casement, sliding sash and tilt‑and‑turn windows, bi‑fold and patio doors, composite…
Serves trade customers in the glazing and construction sectors, including window and door installers, fitters and local builders across the North West and Yorkshire, plus commercial project clients.
Financial Health
HealthyHealthy · -68% CAGR over 4y
Location
International Polymer Solutions Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StrongStrong · Growing, Hiring · 123% CAGR over 2y
Location
T M Plastics Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides engineering plastic machining and fabrication services, producing custom components from plastic materials. Supplies plastic sheets and pipe fittings and offers on-site technical support and…
Serves industrial businesses across sectors, including engineering and manufacturing buyers needing machined or fabricated plastic components, pipe fittings and sheet materials, with customers…
Financial Health
StableStable · Hiring · 3% CAGR over 4y
Location
Andy J Leisure Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsManufactures and supplies commercial inflatable equipment including bouncy castles, slides, obstacle courses, inflatable games, and soft play products. Also provides promotional inflatables,…
Sells primarily to businesses in the inflatable hire and leisure sector, including commercial inflatable hirers and operators buying bouncy castles, slides, obstacle courses, soft play and related…
Financial Health
StableStable · 0% CAGR over 2y
Location
AUTISTECH LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
DistressedDistressed · 0% CAGR over 2y
Location
Independent Tyre Consultants Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · 0% CAGR over 4y
Location
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDesigns, manufactures and prints plastic and alternative‑material cards for identification, access control and membership uses, including RFID and NFC cards, hotel key cards, gift cards and event…
Sells to businesses, organisations and trade buyers needing access, ID, membership and gift cards, including education providers, hotels, event organisers, spas, design agencies and resellers.
Financial Health
DistressedDistressed · -6% CAGR over 5y
Location
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How Liverpool Rubber/Plastics companies work and how to sell to them
What they do
Revenue usually comes from physical production rather than advisory work: moulded, extruded, fabricated or converted rubber and plastic items sold as repeat orders, contract-manufactured parts or finished components. Pricing tends to combine material cost, labour, machine time and margin, with separate charges for tooling, samples, design-for-manufacture input or rush production. Some work is batch-based, especially for specialist industrial parts, while higher-volume customers often negotiate framework pricing, rebates or call-off schedules. Unit economics can move with polymer prices and scrap rates, so suppliers usually care about forecast accuracy, minimum order quantities and whether a job fits existing machinery and shifts.
Who they sell to
Buyers are usually procurement managers, production engineers, operations directors and quality leads inside industrial manufacturers, packaging users, construction-product suppliers and consumer-goods supply chains. Owner-managers and finance directors can still appear in smaller Liverpool manufacturers, particularly when tooling commitments, credit limits or capital expenditure are involved. Sales are typically direct and specification-led, with distributors used where standard stock items matter more than custom production. A low-risk repeat order may move quickly, but new parts often pass through drawing review, sampling, test reports, site audits and approved-supplier checks before a purchase order is raised.
What they buy
Most rubber and plastics manufacturers tend to spend on systems and services that keep machines fed, orders traceable and quality paperwork current. Relevant categories include production planning, inventory control, ERP, CRM, quality management, document control, health and safety, energy monitoring, maintenance scheduling, cyber security and finance software. Outside software, common needs include polymer sourcing, tooling, machine servicing, calibration, waste handling, packaging, freight, insurance, recruitment, training and accountancy. Sellers should expect operational scrutiny: a tool that looks useful to a sales director may still need acceptance from production, quality and finance before it is bought.
Why and how to sell to them
Buying triggers tend to appear when a manufacturer wins a repeat supply contract, takes on a more demanding customer, adds shifts, replaces machinery or faces tighter evidence requirements around materials and waste. Pain is often visible in late deliveries, excess scrap, manual certificates, slow quoting, machine downtime or difficulty hiring skilled operators. Outbound messages work better when they attach to those operating problems rather than broad growth claims. Useful angles include reducing rework, protecting margin when material costs move, shortening approval cycles and making audits less disruptive, with proof framed in production metrics rather than generic efficiency language.
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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