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Electrical Work Companies in Nottingham: 507 Active Firms (2026)
Electrical work companies design, install, inspect and test wiring, power and safety systems for buildings across Nottingham.
Procurement tends to sit with facilities managers, main contractors, housing providers, local-estate teams and commercial property owners, with compliance paperwork often as important as the installation itself. The buyer mix is mostly business-to-business and public-sector, though domestic work remains relevant where dwelling electrical safety is in scope. Engagements range from planned inspection cycles and remedial maintenance to electrical packages within refurbishments, fit-outs and new-build schemes. Nottingham-area contractors therefore need site capacity, testing discipline and the ability to work inside construction timetables rather than just small reactive call-outs.
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Nottingham has 507 actively trading electrical-work companies in this list, making it a sizeable local contracting base rather than a narrow specialist pocket. Reported headcount totals 954 staff across employers that publish employment, while 10 firms sit above £5M turnover and 90 have been incorporated since 2022. The shape is consistent with a trade where many suppliers remain owner-managed or small-site teams, but a thinner layer can bid for larger refurbishment, maintenance and public-estate packages.
Dwelling work sits under Building Regulations Part P in England, with GOV.UK's Approved Document P covering notification, design, installation, inspection, testing and handover information. Installers can use a competent person scheme to self-certify certain building work rather than seeking separate building regulations approval, and electrical-scheme members appear on the electrical competent person register. The Building Safety Regulator, operating under the Building Safety Act, adds a review function for safety and standards in England, keeping compliance evidence close to procurement for residential and public-estate work.
Fragmentation appears likely to persist. Electrical work is local, labour-constrained and tied to project scheduling, so many contractors tend to grow through repeat facilities contracts rather than through broad geographic expansion. Scale-up scarcity may leave room for acquisitive regional groups, especially where inspection, testing, maintenance and minor-works income can be bundled into predictable service lines. Regulatory pressure also favours firms that can produce clean certification trails, manage subcontractor quality and respond to public-sector procurement requirements without stretching site supervision.
507
Active firms
2026
10
Above £5M turnover
Companies in this band
90
New incorporations
Since 2022
Key facts
About 1% of the trading cohort reports turnover above £5M (10 of 507 firms) — the rest sits below that revenue band.
17% of the cohort was incorporated since 2022 (90 firms), so a sizeable share is in its first few filing cycles.
Domestic electrical work in England sits under Building Regulations Part P, covering notification, design, installation, inspection, testing and handover information.
Competent person schemes allow registered installers to self-certify certain building work instead of seeking separate building regulations approval.
Since April 2023, the Building Safety Regulator has had a duty under the Building Safety Act 2022 to keep building safety and standards under review in England.
The UK electricians market was reported at £35.9 billion in 2024, while ONS frames electrical installation through SIC 43.21/0 and related SIC 43.2 construction installation activities.
Top Nottingham Electrical Work companies
Barker & Sheldon Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides electrical contracting services for commercial and domestic properties, including electrical installations and rewiring, safety testing and inspections, emergency lighting, fire alarm…
Serves homeowners, landlords, businesses, local authorities, healthcare organisations and educational institutions in Nottingham and across Nottinghamshire.
Financial Health
StableStable · -3% CAGR over 4y
Location
LURO ELECTRICAL SOLUTIONS LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides electrical contracting services including design and installation for commercial, industrial and new‑build housing projects. Delivers EV charging, LED lighting and heat pump installations,…
Serves B2B and public-sector clients in commercial, industrial and new-build housing, including leisure, retail, defence and logistics operators, national housebuilders, bespoke developers, housing…
Financial Health
HealthyHealthy · -3% CAGR over 2y
Location
APK GROUP LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides electrical contracting services for domestic and commercial clients, including installations, rewiring, maintenance, and infrastructure projects. Delivers electrical system upgrades,…
Serves domestic customers and homeowners in Nottingham, alongside commercial clients nationwide across multiple sectors that require accredited electrical contractors and managed project support.
Financial Health
StrongStrong · Hiring · 19% CAGR over 4y
Location
Breedon Electrical Fire & Security Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides electrical installation and maintenance services including LED and emergency lighting, fixed wire testing, data cabling and general electrical works. Also installs and maintains fire and…
Serves education providers, commercial and industrial organisations, and residential customers needing planned or reactive electrical, fire and security support.
Financial Health
WeakWeak · 0% CAGR over 2y
Location
Gem Solutions (UK) Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides electrical contracting and renewable energy services, including installation and maintenance of solar panel and battery storage systems, electrical wiring and rewiring, LED lighting…
Serves homeowners, landlords, and commercial or industrial organisations around Nottingham, from domestic properties to larger business premises seeking accredited electrical contractors and…
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 3y
Location
PENGUIN PLUMBING LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides mechanical, electrical and plumbing contracting services, including heating and ventilation systems, electrical installations, rewiring, lighting and fire alarms, plumbing and water heater…
Serves businesses, public-sector and community organisations needing MEP contractors for workplace and construction/refurbishment projects, with solar services also offered to domestic homeowners and…
Financial Health
DistressedDistressed · -4% CAGR over 5y
Location
Amptron Electrical Services Limited
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides electrical and mechanical contracting services including M&E design, installation and project management using CAD/BIM. Also delivers facilities management with planned and reactive…
Serves business and organisational customers needing mechanical and electrical contracting, design, and facilities management, including buyers of standalone electrical or mechanical works and full…
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
Pearce Electrical (UK) Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides electrical contracting services for commercial and industrial projects, including system design, installation, project management and maintenance. Also installs solar energy systems, access…
Sells to businesses needing electrical contracting for commercial and industrial projects, including new-build and refurbishment work. Serves contract teams and operators requiring installation,…
Financial Health
WeakWeak · -3% CAGR over 4y
Location
POLAR AIR LTD
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides commercial air conditioning, heating, cooling and ventilation system design and installation, along with mechanical and electrical engineering services. Also carries out office and building…
Serves businesses and organisations across the UK, including commercial offices, education, healthcare, industrial, leisure and hospitality sites, plus selected residential clients.
Financial Health
HealthyHealthy · Hiring · 3% CAGR over 3y
Location
Into M&E Solutions Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides electrical and mechanical contracting services including electrical design, installation, shopfitting, plumbing, HVAC and gas systems. Delivers energy management and building services…
Serves B2B clients nationwide in construction, retail, commercial and industrial sectors, including retailers, leisure venues, gyms and developers managing fit-out or building projects.
Financial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
J Wetton Electrical Services Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides electrical contracting services for domestic, commercial, industrial and hospitality sectors, including full rewires, electrical installations for new builds and offices, EV charging point…
Serves homeowners, hospitality operators—especially hotels—and commercial and industrial businesses across the UK, including organisations with new-build or existing premises.
Financial Health
StrongStrong · Hiring · 25% CAGR over 5y
Location
Rich Hall Construction Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
D E S ELECTRICAL LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StableStable · Hiring · 19% CAGR over 4y
Location
PLR BUILDING SERVICES LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides mechanical and electrical engineering services for construction and infrastructure projects. Delivers electrical installations, water industry compliance work, smoke ventilation system…
Serves B2B clients in commercial construction, including main contractors, developers and framework companies working with utility companies on water infrastructure, large developments and commercial…
Financial Health
StrongStrong
Location
PWP Building Services (Holdings) Limited
Trajectory
1y · 2024–NowProvides design and build construction services, delivering building projects from design through completion. Works across multiple sectors managing construction, building services installation, and…
Financial Health
Insufficient historyInsufficient history
Location
GeoGreen Power Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides installation and maintenance of renewable energy systems including solar panels, battery storage, electric vehicle charging points, and air and ground source heat pumps for residential,…
Sells to both businesses and homeowners across the UK. Serves commercial buyers in sectors including education, manufacturing, agriculture, hospitality, healthcare, retail, property development and…
Financial Health
StrongStrong · Growing, Hiring · 16% CAGR over 4y
Location
P.R. Power Installations Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides installation of data communications cabling systems including fibre optic, blown fibre and copper cabling, along with electrical installation services. Works on telecommunications and…
Serves public and private sector organisations needing data communications cabling and electrical installation work, including manufacturing companies and telecoms-related buyers requiring optical…
Financial Health
StrongStrong · Growing, Hiring · 6% CAGR over 2y
Location
S B Refrigeration Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides design, installation, maintenance and repair of refrigeration and air conditioning systems, and electrical installations for domestic, commercial and industrial clients, including cold…
Serves homeowners and commercial or industrial businesses, especially local companies in crop storage, distribution centre cold storage and horticulture, plus workplaces needing air conditioning and…
Financial Health
HealthyHealthy · 0% CAGR over 4y
Location
Lee Jackson (Air Conditioning) Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · Hiring · 7% CAGR over 4y
Location
Palms Facilities Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Growing, Hiring · 11% CAGR over 4y
Location
Resolve Electrical Services Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
StrongStrong · Growing, Hiring · 19% CAGR over 4y
Location
Voce Electrical Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
WeakWeak · -10% CAGR over 4y
Location
Simon Smith Electrical Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · -10% CAGR over 4y
Location
Green Street Electrical Limited
Trajectory
1y · 2025–NowFinancial Health
Insufficient historyInsufficient history
Location
Goodbrooks Electrical Services Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsFinancial Health
HealthyHealthy · Growing · 0% CAGR over 4y
Location
The Fenn Group Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
Ackroyd Electrical Services Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides electrical contracting and general construction services, including electrical installation and maintenance, building works, property restoration, and repair and maintenance services for…
Financial Health
HealthyHealthy · -17% CAGR over 2y
Location
Thunderbolt Test and Maintenance Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDesigns, installs, tests and maintains lightning protection systems for buildings and infrastructure. Provides lightning risk assessments, earthing services, system certification, and rope access…
Serves public and private sector organisations managing buildings and secure facilities, including schools, shopping centres, power plants, churches, MOD sites and government buildings, in the UK and…
Financial Health
StableStable · -3% CAGR over 4y
Location
Icon Electrical Solutions Ltd
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides domestic, commercial and light industrial electrical services including wiring and rewiring, electrical installations for new builds, consumer unit upgrades, lighting installation, automated…
Serves domestic customers, commercial premises and light industrial clients across Nottingham and the East Midlands, including homeowners, new-build projects and businesses needing electrical work.
Financial Health
StrongStrong · Hiring · 6% CAGR over 4y
Location
Gedling Electrical Contractors Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides electrical contracting services for domestic, commercial and industrial clients, including electrical installations, rewiring, maintenance and repairs, lighting systems, fire alarms, power…
Serves domestic homeowners plus commercial and industrial clients in Nottingham and the East Midlands, including offices, schools, shops, restaurants, pubs, universities, leisure facilities,…
Financial Health
StrongStrong · Growing · 0% CAGR over 4y
Location
DNM ELECTRICAL LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides commercial and industrial electrical contracting services including electrical design, installation, maintenance, periodic testing and inspection, emergency lighting systems, repairs, and…
Serves commercial and industrial organisations in Nottinghamshire, Derbyshire and surrounding areas, including businesses with large premises needing electrical contractor support.
Financial Health
HealthyHealthy · Hiring · 12% CAGR over 3y
Location
C J Timms Electrical Services Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides commercial and industrial electrical contracting services including system design, installation and maintenance. Offers electrical inspections and testing, structured data and fibre cabling,…
Serves B2B customers including commercial, industrial and agricultural businesses, plus schools and colleges, primarily across Derby, Leicester, Nottingham and the East Midlands.
Financial Health
WeakWeak · -6% CAGR over 3y
Location
KEN BURROWS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides electrical and mechanical contracting services including design, installation, inspection and maintenance of lighting, power, fire and security systems, voice and data networks, and HVAC,…
Serves private and public sector clients, facilities management companies and property owners needing electrical and mechanical services for commercial, industrial and residential projects, including…
Financial Health
StrongStrong · Growing · 3% CAGR over 2y
Location
Glosscalm Properties Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides facilities management and property compliance services, including electrical installations, PAT testing, EICR inspections, fire risk assessments, access control systems, EV charger…
Serves commercial and domestic property clients across the East Midlands, including facilities and property managers in education, healthcare, industrial and retail sectors, plus residential…
Financial Health
StableStable · Hiring · 17% CAGR over 2y
Location
HILTON CANNON ELECTRICAL LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides electrical contracting services including design, installation and maintenance of power distribution systems, lighting, fire alarms and security systems. Works on commercial and industrial…
Serves UK public and private sector organisations, including businesses, healthcare providers, education institutions, commercial property operators and industrial facilities.
Financial Health
StrongStrong · Growing, Hiring · 10% CAGR over 5y
Location
KINGSMILL ELECTRICAL SERVICES LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides industrial and commercial electrical contracting services, including design and manufacture of control panels, electrical installation, large-scale lighting design and installation, and…
Serves B2B and institutional customers in industrial, commercial and education sectors, including employers and premises managers with regulated sites across the Midlands and nationwide.
Financial Health
StableStable · -12% CAGR over 2y
Location
Ast Electrical Solutions Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides electrical contracting services for domestic, commercial and industrial properties, including full and partial rewiring, electrical installations, consumer unit upgrades, fault repairs,…
Serves domestic homeowners, landlords, commercial customers and industrial sites in Nottinghamshire, Derbyshire, Lincolnshire and South Yorkshire.
Financial Health
StrongStrong · Growing, Hiring · 77% CAGR over 4y
Location
Lawmax Mechanical And Electrical Contractors Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides electrical and mechanical building services including electrical installations, CCTV systems, fire alarms, emergency lighting, air conditioning, and maintenance and repair. Works on…
Serves commercial, retail and industrial organisations, including supermarket and convenience retail chains, across Nottinghamshire, the East Midlands and wider UK.
Financial Health
WeakWeak · 2% CAGR over 2y
Location
Commercial & Domestic Property Solutions Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides property maintenance and facilities management services for commercial, industrial and residential properties, including planned and reactive maintenance, HVAC installation and servicing,…
Serves commercial, industrial and residential property owners in Nottinghamshire and the surrounding Midlands needing property maintenance, repairs and facilities management.
Financial Health
StableStable · Hiring · 19% CAGR over 4y
Location
GH Davis Electrical Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides domestic, commercial and industrial electrical services including full and partial rewiring, fault finding, electrical inspection and testing, EICR reports, and installation of electric…
Serves homeowners, landlords, commercial premises and industrial businesses in Nottingham and Nottinghamshire seeking electrical contractors for projects and compliance work.
Financial Health
StrongStrong · Growing, Hiring · 41% CAGR over 2y
Location
R F Electrical Installations Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides commercial and domestic electrical contracting services including installation, maintenance and fault repairs. Carries out lighting and power installations, PAT testing and inspection…
Serves a mix of B2B and domestic customers, including construction firms, factories, offices, housing associations, public sector/healthcare sites, landlords, apartment blocks and homeowners needing…
Financial Health
HealthyHealthy · Hiring · 12% CAGR over 2y
Location
NDL Electrical Installations Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides electrical contracting services including installation, maintenance and repair of wiring, lighting and electrical systems for residential, commercial and industrial properties. Also installs…
Serves homeowners, commercial premises operators and industrial businesses across Derby, Nottingham, Leicester and the wider East Midlands.
Financial Health
HealthyHealthy · Hiring · 11% CAGR over 4y
Location
H F Hartley Electrical Contractors Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides electrical contracting services including installation and maintenance of electrical systems, fire alarms, CCTV, access control, smart home systems and EV chargers, along with periodic…
Serves a mix of B2C and B2B customers, including homeowners, commercial premises and industrial organisations with electrical contractor requirements, primarily in the East Midlands.
Financial Health
WeakWeak · 0% CAGR over 4y
Location
R J Booth Services Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides electrical contracting services for commercial, industrial and domestic properties, including electrical installations, inspection and testing, fire and security systems, CCTV and burglar…
Serves a mix of B2B and B2C customers: commercial and industrial premises, construction-related clients, and homeowners across the East and West Midlands.
Financial Health
WeakWeak · -10% CAGR over 4y
Location
ETM ELECTRICAL SOLUTIONS LTD
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides electrical testing, inspection and compliance services for commercial and organisational premises, including fixed wire testing (EICR), PAT testing, electrical installations, remedial…
Serves UK SMEs, corporate clients and public-sector organisations, including customers in education, healthcare, social housing, facilities management and other workplace-based sectors.
Financial Health
StrongStrong
Location
Thorpe Electrical Solutions Ltd
Trajectory
4y · 2021–NowFinancial sub-scores
Computed from 4 filingsProvides electrical services for domestic and commercial properties, including installation, inspection and testing of electrical systems. Offers landlord EICR reports, EV car charger installation,…
Serves homeowners, landlords, and business clients, including commercial offices, industrial sites, shop fitters, and customers requiring EV charging or compliance-related electrical support.
Financial Health
WeakWeak · Hiring · 33% CAGR over 3y
Location
Trusted Facilities Management Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides facilities management and building maintenance services including planned and reactive maintenance, HVAC servicing, gas and boiler work, electrical compliance testing, fire system…
Serves businesses, groups and individual customers needing facilities management and maintenance services. Targets organisations of varied sizes requiring planned or reactive support for buildings,…
Financial Health
StrongStrong · Growing, Hiring · 14% CAGR over 4y
Location
Luke Burrows Electrical Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsFinancial Health
WeakWeak · 0% CAGR over 2y
Location
Fletch Electrical Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides electrical installation, maintenance and inspection services for domestic, commercial and industrial properties. Specialises in street lighting, traffic signal and highway electrical works,…
Serves homeowners, commercial and industrial property owners, and highways clients needing street lighting, traffic signal or street furniture electrical work, mainly across Derby, the East Midlands…
Financial Health
StableStable · -11% CAGR over 4y
Location
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How Nottingham Electrical Work companies work and how to sell to them
What they do
Nottingham electrical-work contractors earn through a mix of project installation, planned testing, remedial maintenance and reactive call-outs. Revenue is usually priced as fixed-scope work, schedule-of-rates maintenance, time-and-materials response or labour packages subcontracted into wider building programmes. Gross margin sits in the management of qualified labour, materials purchasing, travel time, certification and rework risk, rather than in a single product line. Many firms also package inspection and testing with minor remedial works, giving facilities and housing clients a repeatable service cadence between larger refurbishments or fit-outs.
Who they sell to
Buyers are typically estates directors, facilities managers, property managers, contract managers, quantity surveyors and procurement teams, with M&E consultants or principal contractors shaping the specification on construction projects. Domestic buyers still appear, but the more saleable B2B segment is usually landlords, managing agents, schools, industrial sites, retailers and local public-estate teams. Small jobs can be booked directly, while larger packages tend to move through approved-contractor lists, framework agreements, subcontract tendering or formal procurement portals. Sales cycles vary with urgency: reactive faults close quickly, planned maintenance is account-led, and construction work follows the main programme and tender timetable.
What they buy
Most electrical contractors tend to spend on field-service scheduling, job-costing, quoting, mobile workforce management, accounting, payroll, fleet management and document control. Compliance workflow matters: certificate production, inspection records, risk assessments, method statements, training logs and subcontractor checks all affect whether a contractor can win and retain property or public-sector work. They also buy recruitment support, apprenticeship administration, health-and-safety advice, insurance brokerage, legal help on subcontract terms, credit control and marketing for local search. Cloud hosting and cyber security are relevant where invoices, site documents and client portals sit outside the office.
Why and how to sell to them
Electrical-work buyers tend to evaluate vendors when administration starts to constrain site delivery: more certificates to issue, more projects overlapping, a new framework win, or a step up from domestic jobs into facilities and construction work. Other triggers include hiring office staff, adding vans, replacing paper job sheets, failed audits, slower payment caused by missing paperwork, or pressure from a main contractor to report progress more clearly. Outbound messages land better when they connect to utilisation, certification accuracy, cash collection, tender readiness or fewer return visits, rather than generic productivity claims.
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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