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Heat Pump Companies in Birmingham: 46 Active Firms (2026)
Heat pump companies in Birmingham install and support low-carbon heating systems across homes, commercial buildings and public-sector sites.
Buying demand tends to split between residential retrofit, commercial plant replacement, new-build specification and property-maintenance frameworks. Sales are usually local and technical: survey, design, product supply, installation, commissioning and aftercare sit close together, with MCS certification acting as a practical route into grant-funded work. The customer mix is mainly homeowners, landlords, developers, facilities managers and public-sector estates teams, rather than pure online procurement. Engagements range from installer-led household projects to regional service contracts for multi-site portfolios, so the buying centre often includes both the property owner and whichever contractor is carrying compliance risk.
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Birmingham has 46 actively trading heat pump and low-carbon heating companies, making the local cohort compact and contractor-led rather than a broad national vendor set. Reported headcount totals 364 people, which points to a labour market made up of installation, design, maintenance and distribution capacity rather than large single-site employers. The firms serve retrofit, new-build and maintenance demand across the surrounding metropolitan area, with mid-market operators sitting alongside smaller specialist teams. For researchers, the useful read is not only who sells heat pumps, but which firms can carry certification, grant paperwork and post-installation support at local-project scale.
Policy rather than consumer fashion sets much of the market structure. The Boiler Upgrade Scheme is administered by Ofgem, and eligible installations need an MCS-certified installer before grant claims can proceed. VAT relief for energy-saving materials, including heat pumps, also keeps installation economics tied to tax treatment. The Clean Heat Market Mechanism adds a supplier-side obligation by linking low-carbon-heating credits to fossil-fuel boiler sales, which may affect how manufacturers, distributors and installers manage demand. Trade-body coverage is relatively concentrated through the Heat Pump Association, so sales signals and policy responses tend to travel through specialist channels.
Grant access, certification capacity and boiler-supplier obligations appear likely to shape demand more than manufacturer-led consumer pull. Firms that combine survey work, compliant installation and maintenance should find steadier routes into retrofit and property-maintenance budgets, while pure product resellers may be more exposed to supplier pricing and stock cycles. Consolidation tends to be plausible where regional installers need trained labour, compliance administration and aftercare coverage, but the cohort still looks more like a set of specialist contractors than a platform market.
46
Active firms
2026
6
Above £5M
turnover band
6
Since 2022
incorporated firms
Key facts
About 13% of the trading cohort reports turnover above £5M (6 of 46 firms) — the rest sits below that revenue band.
13% of the cohort was incorporated since 2022 (6 firms), so a sizeable share is in its first few filing cycles.
Ofgem administers Boiler Upgrade Scheme grants of £7,500 for air-to-water and ground-source heat pumps, £2,500 for air-to-air heat pumps and £5,000 for biomass boilers.
Eligible Boiler Upgrade Scheme installations must be installed and commissioned by an MCS-certified installer.
The Clean Heat Market Mechanism came into force on 1 April 2025, with Year 1 credits set at 6% of relevant boiler sales and government consulting on 8–10% for Year 2.
0% VAT on installation of energy-saving materials including heat pumps applies from 1 April 2022 to 31 March 2027.
Certified UK heat-pump installations grew by 43% in 2024, while EHPA put UK sales at around 3.5 per 1,000 households against Norway’s 48 per 1,000 households.
Top Birmingham heat pumps companies
RENEWABLE HEATING INSTALLATIONS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDesigns, installs, services and repairs renewable heating systems including air source and ground source heat pumps, solar thermal and MVHR systems, alongside gas‑fired heating, underfloor heating,…
Serves homeowners, business owners, landlords and housing associations in the West Midlands seeking heating and renewable energy solutions for domestic, commercial and rental properties.
Financial Health
StableStable · Hiring · 12% CAGR over 2y
Location
PRESTANTIA PROPERTY SERVICES LIMITED
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsInstalls and services renewable and high‑efficiency heating systems for residential and commercial properties, including air and ground source heat pumps, solar thermal systems, gas boilers,…
Serves homeowners and businesses across Worcestershire, Warwickshire and the West Midlands seeking renewable or high-efficiency heating options and support with energy grants.
Financial Health
DistressedDistressed · 0% CAGR over 4y
Location
SUSTAIN ENERGY (UK) LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsInstalls home energy efficiency and heating systems under the Energy Company Obligation scheme, including cavity wall, loft and room‑in‑roof insulation, gas, oil and LPG boilers, air source heat…
Serves UK homeowners and households seeking home energy efficiency upgrades, including customers eligible for ECO/Help to Heat funding and able-to-pay consumers using finance.
Financial Health
DistressedDistressed · -16% CAGR over 4y
Location
Butco Heating Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides boiler cover plans, boiler installation, servicing and emergency repairs for gas, oil and LPG systems. Also delivers central heating maintenance, electrical inspection and repair, and…
Serves homeowners, landlords and businesses across Birmingham and the West Midlands, including domestic property owners and commercial clients needing heating, electrical and renewable energy support.
Financial Health
StableStable · Hiring · 4% CAGR over 4y
Location
Strysen Heating Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides installation, servicing and repair of gas and oil boilers and heating systems for domestic and commercial properties. Also installs air source heat pumps, solar thermal systems, air…
Serves homeowners, landlords and commercial property owners/managers in Four Oaks and Sutton Coldfield, covering domestic and business customers with heating, electrical and related property needs.
Financial Health
WeakWeak · -5% CAGR over 4y
Location
Warwick Heating & Bathroom Supplies Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies plumbing, heating and bathroom products including boilers, radiators, pipes, fittings, underfloor heating systems and air source heat pumps. Operates a plumbing merchant store providing…
Serves plumbers, heating engineers, installers and local homeowners in Birmingham needing plumbing, heating, boiler, bathroom and renewable heating supplies.
Financial Health
StableStable · Hiring · 6% CAGR over 4y
Location
SIMPLE GREEN ENERGY LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsInstalls residential energy efficiency and renewable systems, including solar panels, battery storage, air source heat pumps, boilers, and cavity wall and loft insulation. Provides home energy…
Serves homeowners and residential property owners seeking financed or grant-supported domestic energy efficiency and renewable energy upgrades.
Financial Health
StrongStrong
Location
AIRGEM DELTA LTD
Trajectory
5y · 2019–NowFinancial sub-scores
Computed from 5 filingsProvides installation, design, reactive repair and planned maintenance for HVAC and refrigeration systems, including air conditioning units, air source heat pumps, ventilation systems, and commercial…
Sells to businesses needing HVAC, refrigeration and ventilation support, including commercial sites with chillers, cold rooms, chilled displays, freezers and kitchen projects. Targets buyers seeking…
Financial Health
StableStable · 0% CAGR over 6y
Location
GIBAIR FM LIMITED
Trajectory
1y · 2025–NowProvides maintenance, servicing and repair for heating, ventilation and air conditioning (HVAC) systems, including planned preventative maintenance and call‑out support for air conditioning units,…
Serves B2B commercial clients across the UK, including MEP contractors, building owners and facilities teams in sectors such as data centres, hotels and other commercial properties.
Financial Health
Insufficient historyInsufficient history
Location
GREEN DEAL CENTRE LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides assessment and installation of home energy efficiency upgrades through government-funded schemes, including loft and cavity wall insulation, boiler replacements, ventilation systems, solar…
Serves homeowners and residential households eligible for government-funded energy-efficiency grants, including those seeking insulation, boiler, solar, heat pump, ventilation or first-time…
Financial Health
DistressedDistressed · -16% CAGR over 4y
Location
JLN Plumbing and Heating Limited
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing, heating and electrical services including boiler installation, servicing and repair, central heating systems, air conditioning, air source heat pumps, underfloor heating, bathroom…
Serves homeowners, landlords, commercial and industrial premises, and local authorities in Coventry and surrounding areas.
Financial Health
HealthyHealthy · Hiring · 10% CAGR over 4y
Location
PRT HEATING LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides installation, servicing and repair of commercial and domestic gas boilers, heating systems and air conditioning. Also installs heat pumps and solar-related systems and offers temporary…
Serves a mix of B2C homeowners and B2B commercial clients across Coventry, Warwickshire and the Midlands, including industrial businesses and organisations seeking service contracts.
Financial Health
StrongStrong · Growing, Hiring · 12% CAGR over 2y
Location
SOLIHULL HEATING AND BATHROOMS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides installation and refurbishment services for bathrooms and kitchens, and installs and maintains gas boilers, heat pumps and central heating systems. Also offers plumbing, air conditioning,…
Serves homeowners in the Midlands and West Midlands, alongside commercial contractors in construction, refurbishment and mechanical building services seeking domestic or commercial project support.
Financial Health
HealthyHealthy · -68% CAGR over 4y
Location
HEATFLOW CONTRACTS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing, heating and ventilation services for domestic and commercial clients, including boiler installation and servicing, central heating systems, plant room installations, air…
Serves both B2B and B2C customers: homeowners and private individuals, plus schools, colleges, universities, care homes, retail premises, offices, factories, warehouses, airports and hotels across…
Financial Health
WeakWeak · 0% CAGR over 4y
Location
MIDLAND AIR CONDITIONING & FACILITY MANAGEMENT LTD
Trajectory
5y · 2019–NowFinancial sub-scores
Computed from 5 filingsProvides installation, maintenance, and repair of domestic and commercial air conditioning systems. Also installs heat pumps, solar panels, and battery storage systems, and supplies air conditioning…
Sells to both homeowners and businesses, offering domestic and commercial customers air conditioning, heat pump, solar and battery storage solutions, with a clear focus on homes and organisations in…
Financial Health
StableStable · -53% CAGR over 6y
Location
Comfort Temperature Solutions Ltd
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsProvides HVAC services including design, installation, repair and maintenance of air conditioning, heating and ventilation systems. Also installs refrigeration and coldstore systems, air source heat…
Serves homeowners and businesses in Coventry and Warwickshire, including domestic customers and commercial clients needing controlled-temperature, refrigeration, coldstore, ventilation or extraction…
Financial Health
StrongStrong · Hiring · 44% CAGR over 3y
Location
ABI FACILITIES ENGINEERING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides installation, servicing, maintenance and repair of commercial and industrial HVAC systems, including air conditioning, heat pumps, warm air and water heating, and bespoke air handling…
Serves B2B and public-sector organisations in the Midlands, including offices, data centres, FM companies, manufacturers, logistics sites, healthcare providers, schools, councils, hospitality venues…
Financial Health
HealthyHealthy · -67% CAGR over 4y
Location
RMS ENERGY SOLUTIONS LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsInstalls residential energy efficiency measures under UK government grant schemes, including cavity, internal and external wall and roof insulation, air source heat pumps, boilers and central heating…
Serves UK homeowners, tenants and landlords eligible for government-backed energy-efficiency grants, including domestic property owners and landlord offices managing residential tenants.
Financial Health
HealthyHealthy · Hiring · 44% CAGR over 4y
Location
Nu Age Heating & Interiors Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides domestic plumbing and heating services including boiler installation, servicing and repair, central heating design and installation, and plumbing maintenance. Also installs kitchens and…
Serves homeowners and domestic property owners in Coventry, Warwickshire and the West Midlands needing plumbing, heating, boiler, kitchen, bathroom and home energy upgrades.
Financial Health
StrongStrong · Growing, Hiring · 36% CAGR over 5y
Location
WARMINGTON PLUMBING & HEATING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing and heating services for domestic and commercial properties, including boiler installation, servicing and repairs, gas safety inspections, plumbing installations and repairs, air…
Serves domestic homeowners, landlords, churches and commercial organisations in Coventry, Warwickshire and nearby areas, targeting both residential and business customers.
Financial Health
WeakWeak · Hiring · 3% CAGR over 4y
Location
ECO FRIENDLY FUTURES LTD
Trajectory
4y · 2021–NowFinancial sub-scores
Computed from 4 filingsFacilitates government‑funded ECO4 home energy upgrades, arranging installation of insulation, air source heat pumps, solar PV panels, and heating improvements for eligible households, and assisting…
Sells to eligible households in Great Britain, primarily domestic homeowners and residents seeking government-funded energy-efficiency upgrades, including support aimed at vulnerable energy consumers…
Financial Health
StrongStrong · Hiring · 108% CAGR over 3y
Location
CHILLAIRE HVAC SERVICES LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides air conditioning and HVAC services including system design, supply, installation, maintenance, repair and equipment hire for commercial, industrial and residential buildings. Installs…
Serves B2B customers in commercial and industrial settings, including offices, hotels, classrooms, computer rooms, clean rooms, laboratories, manufacturing facilities, and storage and distribution…
Financial Health
StableStable
Location
JACKWOLF GROUP LIMITED ( FORMERLY BSN MEP LIMITED)
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides mechanical and electrical building services including design, installation and maintenance for new and existing buildings. Delivers decarbonisation and energy solutions such as air source…
Serves public sector and commercial clients, including healthcare providers, schools, government bodies, residential property stakeholders and commercial building owners or managers.
Financial Health
StrongStrong · 350% CAGR over 2y
Location
GOC SOLUTIONS LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides home energy efficiency installations including external and internal wall insulation, loft insulation, boiler upgrades, first-time gas central heating systems, air source heat pumps, and…
Sells to UK households and homeowners seeking government-backed home energy upgrades, including insulation, heating systems, heat pumps and solar panels, particularly those checking eligibility for…
Financial Health
StrongStrong · Growing, Hiring · 45% CAGR over 4y
Location
Heating & Cooling (Midlands) Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsInstalls, repairs and maintains heating, cooling and plumbing systems for domestic and commercial properties, including boilers, radiators, underfloor heating, air and ground source heat pumps, air…
Serves homeowners and commercial clients, including businesses with premises, IT rooms and ventilation needs, seeking heating, cooling and plumbing support.
Financial Health
HealthyHealthy · Hiring · 42% CAGR over 4y
Location
WESTCOTT REFRIGERATION AND AIR CONDITIONING LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsInstalls, services, and repairs air conditioning and HVAC systems for residential and commercial properties. Provides system design, installation, maintenance, breakdown repair, ventilation…
Targets domestic and commercial customers across the Midlands and wider UK, including homeowners, residential landlords, office managers and business owners responsible for maintaining comfortable…
Financial Health
StrongStrong · Growing · 4% CAGR over 2y
Location
Elgar Plumbing & Heating Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides plumbing, heating and gas engineering services for domestic and commercial properties, including boiler installation, servicing and repairs, bathroom fitting, pipework and radiator upgrades,…
Serves a mix of B2C and B2B customers, including homeowners, landlords and commercial property operators needing plumbing, heating and gas support in Worcester, Warwickshire and the West Midlands.
Financial Health
StableStable · Hiring · 11% CAGR over 4y
Location
SHECO RENEWABLE SYSTEMS LIMITED
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDesigns and installs renewable heating and cooling systems for commercial organisations, including air and ground source heat pumps, solar PV and solar thermal systems, and chillers. Also provides…
Serves businesses and organisations needing commercial renewable energy, heating and cooling systems, including sites with roofs, car parks or ground space for solar infrastructure.
Financial Health
StableStable · -13% CAGR over 3y
Location
HEATCO MIDLANDS LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides plumbing, heating and electrical installation services for residential new‑build developments. Designs and installs systems including air source heat pumps and other energy‑efficient…
Serves volume housebuilders and property developers delivering new-build residential projects, including development, technical and commercial teams involved from tendering through customer care.
Financial Health
StableStable · -5% CAGR over 2y
Location
Premier Gas Services (Coventry) Limited
Trajectory
5y · 2022–NowFinancial sub-scores
Computed from 5 filingsProvides domestic gas and heating engineering services, including boiler installation, servicing and repair, central heating system installation, underfloor heating, and general plumbing work. Gas…
Serves homeowners, landlords, commercial and industrial premises, and local authorities in Coventry and Warwickshire.
Financial Health
DistressedDistressed
Location
PRINCETON ECO PLUS SERVICES LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsServes eligible UK consumers and households qualifying for ECO scheme subsidies, including homeowners or tenants seeking support with energy-efficiency improvements.
Financial Health
StrongStrong · Growing, Hiring · 97% CAGR over 4y
Location
Allforproperty Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides property construction and refurbishment services, including kitchen and bathroom renovations and extensions. Installs air and ground source heat pumps, gas and electric boilers, electrical…
Serves homeowners and businesses across the West Midlands, including Birmingham, Wolverhampton, Coventry, Solihull and Dudley, with projects across the wider UK.
Financial Health
StableStable · 0% CAGR over 2y
Location
TEMP AIR SOLUTIONS LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides design, installation, servicing and maintenance of air conditioning, air‑to‑air heat pump and ventilation systems for domestic, commercial and industrial premises. Also offers fault…
Serves homeowners, commercial premises and industrial facilities, including organisations with server rooms or process cooling requirements; the website emphasises customers in Warwickshire.
Financial Health
WeakWeak · -4% CAGR over 4y
Location
Ron Sims
Provides heating, plumbing and electrical services, including boiler installation, servicing and maintenance. Designs and installs renewable energy systems such as solar power, as well as air…
Serves domestic homeowners and organisations in Worcester, Malvern, Bromsgrove and surrounding areas, including offices, schools, hotels and large residential renovation projects.
Financial Health
Insufficient historyInsufficient history
Location
Air Control & Development Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns, installs and maintains mechanical building services including air conditioning, ventilation systems, commercial plumbing and heating, air curtains and air source heat pumps, providing…
Serves retail, leisure, commercial and public sector organisations across the UK, targeting building owners, facilities managers and businesses needing mechanical services for their premises.
Financial Health
HealthyHealthy · -4% CAGR over 4y
Location
RHF Heating Company Ltd.
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides mechanical and electrical building services including design, supply and installation of heating systems, air conditioning, ventilation, plumbing, drainage and gas systems. Also installs…
Serves B2B and public-sector clients in care, medical, leisure, community, commercial and education sectors, including organisations procuring mechanical and electrical building services.
Financial Health
HealthyHealthy · -9% CAGR over 4y
Location
MIDLANDS HEATING SOLUTIONS LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDesigns, supplies and installs commercial biomass boiler heating systems. Provides RHI consultancy, relocation of accredited non‑domestic RHI installations, and handles removal, reinstallation and…
Serves businesses and organisations with larger commercial biomass heating projects, especially owners, buyers and sellers of non-domestic RHI-accredited installations.
Financial Health
DistressedDistressed · -18% CAGR over 2y
Location
SANNIK LTD
Trajectory
1y · 2024–NowProvides installation, maintenance and repair of air conditioning and refrigeration systems for commercial and domestic clients. Also installs ventilation, heat pump and cold room systems, and offers…
Serves both businesses and consumers: shops, offices, restaurants and other commercial premises, plus homeowners seeking domestic heating and cooling systems.
Financial Health
Insufficient historyInsufficient history
Location
E J R CONTRACTING LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsSupplies and installs air conditioning, ventilation and heat recovery systems, including VRV systems. Provides inspection, maintenance and repair of HVAC and air handling equipment, along with air…
Serves commercial property and facilities managers, building services firms and domestic customers nationwide needing air conditioning, ventilation, heating and air handling support.
Financial Health
WeakWeak · 0% CAGR over 5y
Location
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How Birmingham heat pumps companies work and how to sell to them
What they do
Revenue usually comes from a blend of design fees, equipment margin, installation labour, commissioning and aftercare. Residential work is often sold as a quoted project per property, with the installer pricing survey time, system design, kit, labour and handover together. Commercial and public-estate work tends to look more like building-services contracting, with plant replacement, maintenance visits and remedial work wrapped into a schedule of rates or service agreement. Some firms also earn through distribution, supplying units and ancillaries to other installers rather than owning the end-customer relationship. The commercial shape is therefore part technical services, part physical supply chain, with cash tied up before payment arrives.
Who they sell to
Most Birmingham heat pump firms sell to property owners and the organisations that manage buildings on their behalf. Domestic retrofit buyers are usually homeowners or landlords, while larger jobs involve developers, facilities managers, estates leads, procurement teams and finance approvers. Public-sector and multi-site work is more likely to move through tenders, approved-contractor lists or framework-style procurement; household work is more likely to come through referrals, local search, survey visits and installer-led consultation. Sales cycles vary by building type: simple domestic replacement can move once grant eligibility and finance are clear, while commercial projects usually need site assessment, design sign-off, disruption planning and budget approval.
What they buy
Most heat pump firms tend to spend on tools that help them quote accurately, schedule engineers, manage compliance paperwork and keep installations moving. Relevant software categories include CRM, field-service management, job costing, stock control, document management, health and safety records, fleet tracking, accounting, payroll and customer-support systems. They also buy technical training, recruitment support, insurance, legal advice, finance administration, local marketing and website services, alongside vans, tools, meters and warehousing capacity. Distribution-led firms may care more about inventory, trade-account management and credit control, while installer-led firms usually feel the pain in diaries, labour utilisation, site notes and warranty follow-up.
Why and how to sell to them
Buying intent tends to appear when firms move from owner-managed domestic jobs into repeat commercial work, add installation teams, take on public-estate maintenance, or need tighter evidence for grant-linked projects. Regulation and certification make the pitch less about abstract efficiency and more about reducing rework, shortening quote-to-install time, protecting margin and proving that the right documents exist at handover. Useful outbound angles are practical: fewer missed appointments, cleaner site photos, faster customer finance packs, better engineer scheduling, clearer warranty trails and tighter control of parts. Firms expanding beyond Birmingham’s immediate local market may also evaluate suppliers when coordination costs start to show.
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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