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Renewable Energy Companies in Sheffield: 65 Active Firms (2026)
Renewable energy companies in Sheffield develop, generate, install or support low-carbon power assets across the city region.
Buying usually sits with estates, facilities, energy procurement, sustainability, finance and project-delivery teams rather than a single software-style budget holder. Sheffield suppliers tend to sell to business, public-sector, property, industrial and energy-market customers, with work framed around generation assets, installation programmes, engineering support, operating services or specialist compliance tasks. Engagements are often capital-project or asset-management contracts, so procurement cycles can involve technical surveys, performance assumptions, energy-market requirements and board-level approval. The commercial pattern is therefore closer to infrastructure services than high-volume retail energy: fewer customers, longer diligence, and delivery risk carried through the life of the asset.
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Sheffield has 65 actively trading renewable-energy companies, making the local cohort small enough for individual project pipelines and public-sector procurement decisions to matter. Reported headcount across the cohort totals 888 people, which points to a labour footprint built around lean engineering, installation, operations and asset-management teams rather than very large local workforces. The mix appears weighted towards commercial delivery: property owners, industrial sites and energy-market counterparties are likely to be as important as household customers, particularly where renewable projects require site access, technical assurance and continuing monitoring.
Generation, movement and supply of energy in Great Britain can bring Sheffield operators into Ofgem’s licensing framework. The practical point is activity-based rather than label-based: a developer, generator, supply intermediary or support contractor can face different obligations depending on what it controls, sells or operates. Licensed firms must comply with standard licence conditions and any special conditions attached to their permission. The Renewables Obligation is no longer open to new generating capacity, but accredited stations still face audit and compliance checks, including generation submissions for Renewables Obligation Certificates. RenewableUK provides a trade-body reference point for the renewable-electricity market.
Project delivery and asset operation appear more likely to shape the Sheffield cohort than a wave of newly formed developers. Larger revenue operators tend to sit alongside smaller engineering and installation specialists, which suggests room for subcontracting, acquisition and partnership rather than a simple start-up cycle. Regulatory pressure is also likely to keep compliance, metering and customer-contract discipline near the centre of commercial work. If demand for lower-carbon power keeps feeding through property, public-sector and industrial estates, the more durable firms should be those that can finance projects, manage operational risk and prove delivery over repeated sites.
65
Active firms
2026
13
Above £5M
reported turnover
7
Since 2022
new incorporations
Key facts
About 20% of the trading cohort reports turnover above £5M (13 of 65 firms) — the rest sits below that revenue band.
10% of the cohort was incorporated since 2022 (7 firms), so a sizeable share is in its first few filing cycles.
Renewable-energy businesses that generate, move or supply energy in Great Britain need Ofgem licences and must comply with standard and any special licence conditions once granted.
The Renewables Obligation is closed to all new generating capacity, but accredited stations still face Ofgem audit and compliance checks and must submit generation data for Renewables Obligation Certificates.
UK renewables generated 50.8% of UK electricity in 2024, up from 46.4% in 2023.
Wind contributed 29.5% of UK electricity generation in 2024, including 17.2% offshore wind and 12.3% onshore wind.
The IEA’s Renewables 2024 outlook says annual renewable capacity additions rise from 666 GW in 2024 to almost 935 GW in 2030, with solar PV and wind forecast to account for 95% of additions.
Top Sheffield Renewable Energy companies
Dunamis
Designs and delivers high‑voltage electrical infrastructure and grid connections as an independent connection provider. Provides turnkey design, engineering and construction of networks up to 132kV…
Serves UK businesses and project developers in solar, battery storage, onshore wind, and industrial/commercial sectors, including renewable energy operators and infrastructure investors.
Location
EMSC (UK) Limited
Trajectory
4y · 2022–NowFinancial sub-scores
Computed from 4 filingsDesigns and manufactures voltage optimisation systems, low‑loss transformers, and battery energy storage systems for commercial and industrial power management. Also provides feasibility studies,…
Serves B2B commercial and industrial organisations with energy-intensive sites, including facilities, engineering and sustainability teams seeking lower energy costs, power resilience and support for…
Financial Health
WeakWeak · Hiring · 16% CAGR over 3y
Location
Designs and manufactures proton exchange membrane (PEM) electrolysers and hydrogen production systems that generate green hydrogen from renewable electricity. Supplies modular electrolyser stacks and…
Sells to businesses and project developers planning green hydrogen production, especially organisations with large-scale decarbonisation projects using renewable energy across multiple countries.
Location
Designs and manufactures proton exchange membrane (PEM) electrolysers that produce hydrogen from water using renewable electricity. Supplies modular electrolyser plants and stack technology for…
Sells to businesses and project developers seeking to decarbonise operations using green hydrogen, including large-scale industrial and energy-sector customers deploying PEM electrolyser plants…
Location
A W Electrics (Sheffield) Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides electrical installation services for domestic, commercial and industrial properties, including solar PV systems, battery storage and electric vehicle charging points. Also carries out…
Serves homeowners and businesses across South Yorkshire, including domestic, commercial and industrial clients, plus education, leisure, football and sporting stadia sectors.
Financial Health
StrongStrong · Growing, Hiring · 16% CAGR over 4y
Location
Midland Renewables Limited
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsInstalls renewable energy and heating systems including air source heat pumps, solar photovoltaic panels, battery storage, underfloor heating, radiators, and mechanical ventilation with heat recovery…
Serves homeowners, self-builders and commercial property owners seeking renewable heating, solar and ventilation systems, with customers in Sheffield, surrounding areas and nationwide.
Financial Health
StrongStrong · Hiring · 8% CAGR over 5y
Location
VOLTALIS UK LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides demand‑response energy management systems for homes and businesses. Installs smart thermostats and gateway devices on electric heating and cooling appliances, connecting them to a network…
Serves homeowners, landlords, public institutions and companies with residential or commercial properties using electric heating or cooling, including customers seeking lower energy costs and…
Financial Health
HealthyHealthy · 0% CAGR over 3y
Location
OGC ENERGY LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides materials engineering, corrosion management and asset integrity consulting for energy projects. Services include corrosion assessment, materials selection, metallurgy advice, NACE MR0175…
Serves B2B energy-sector operators, developers and consortiums in oil and gas, carbon capture and storage, hydrogen, offshore wind and other renewables, including organisations managing new projects…
Financial Health
StableStable · Hiring · 7% CAGR over 4y
Location
LIBERTINE FPE LIMITED
Trajectory
2y · 2020–NowFinancial sub-scores
Computed from 2 filingsDevelops linear generator and linear motor‑generator technologies and modular power systems. Provides platforms, test actuators and integration support for engine makers, powertrain companies and…
Serves B2B engine makers, powertrain companies, heat engine and gas compressor businesses, plus research organisations and demonstration pilot partners in distributed generation, EV recharging and…
Financial Health
WeakWeak · -10% CAGR over 1y
Location
M Howe Electrical Services Ltd
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides commercial electrical services including compliance testing, electrical installations and maintenance, fire alarm and emergency lighting testing, PAT and EICR inspections, EV charge point…
Serves UK businesses and public-sector organisations needing electrical compliance and installation support, including construction sites, offices, retail shops, warehouses, supermarkets, care homes,…
Financial Health
WeakWeak · -5% CAGR over 2y
Location
MAGNOMATICS LIMITED
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDesigns and manufactures electric motors, generators and magnetic gear‑based drivetrains, including traction motors, marine thrusters and hybrid transmissions. Provides engineering design and…
Serves B2B engineering and manufacturing customers in hybrid vehicles, marine propulsion, aerospace, rail, wind and ocean energy, and industrial motor applications, including organisations needing…
Financial Health
HealthyHealthy · Hiring · 8% CAGR over 5y
Location
A W S CONSULTING ENGINEERS LIMITED
Trajectory
4y · 2022–NowProvides engineering, design and planning consultancy services for the built environment, including infrastructure, buildings, transport systems and energy projects. Offers multidisciplinary…
Serves public and private sector organisations commissioning built-environment projects, including infrastructure owners, developers, energy and transport bodies, city authorities, and major venue or…
Financial Health
Insufficient historyInsufficient history
Location
Tomson Consulting Ltd
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsProvides environmental consultancy services to businesses, landowners and public organisations, including carbon management planning, decarbonisation strategies, heat network and renewable energy…
Sells to businesses of all sizes, landowners, farmers, local authorities, and other public and private sector organisations seeking sustainability, decarbonisation, carbon management, heat network,…
Financial Health
HealthyHealthy · Hiring · 34% CAGR over 4y
Location
Spicer Hill Wind Farm Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsOperates an onshore wind farm comprising three Enercon E70 wind turbines with a combined capacity of about 6.9 MW, generating renewable electricity from wind energy and supplying power to the…
Financial Health
StrongStrong
Location
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDevelops and operates renewable energy infrastructure including solar, wind and battery storage projects. Also develops green hydrogen and ammonia energy projects and provides AI‑enabled digital…
Serves utilities, commercial and industrial energy users, grid operators and energy-market participants globally, including shipping, mining, transport, heavy manufacturing and AI data centres.
Financial Health
StrongStrong · 71% CAGR over 3y
Location
Anderson Power Generation Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides industrial and commercial electrical engineering services, including design, installation and maintenance of high‑voltage electrical distribution systems and power generation equipment. Also…
Serves commercial and industrial organisations across the UK and Europe, including clients in renewables, power generation and sites needing high-voltage electrical infrastructure, generator…
Financial Health
StrongStrong · Growing, Hiring · 86% CAGR over 4y
Location
JONES ELECTRIC (DONCASTER) LIMITED
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides commercial electrical contracting services, including installation and maintenance of rooftop solar photovoltaic systems and workplace electric vehicle charging points, along with electrical…
Serves UK businesses and industrial sites seeking commercial solar and workplace EV charging, including organisations with car parks, large rooftops, care home groups and companies aiming to reduce…
Financial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
ReFood UK Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsCollects and recycles commercial food waste from sectors such as hospitality, retail and public services. Processes waste through anaerobic digestion to produce renewable energy and biofertiliser,…
Serves UK businesses and public sector organisations with commercial food waste, including education providers, manufacturers, retailers, local authorities, hospitality venues, hotels, healthcare and…
Financial Health
HealthyHealthy · Profitable · 2% CAGR over 2y
Location
UK ENERGI LTD
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsInstalls renewable energy systems for residential and commercial properties, including solar panel arrays, air source heat pumps, battery storage units and electric vehicle charging points. Also…
Serves homeowners, commercial property owners, businesses, developers, home builders, architects and EPC assessors, with an emphasis on South Yorkshire customers and residential, commercial and…
Financial Health
WeakWeak · -70% CAGR over 3y
Location
Scarbrook Plumbing and Heating Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides installation and project management for heating systems, electrical installations, and renewable energy technologies, including solar PV and battery storage, serving commercial, local…
Serves a mix of B2B, public sector and B2C customers, including main contractors, construction professionals, local authorities, housing associations, care homes and domestic homeowners.
Financial Health
StrongStrong · Hiring · 14% CAGR over 4y
Location
E-GENER8 LTD
Trajectory
4y · 2021–NowFinancial sub-scores
Computed from 4 filingsInstalls renewable energy systems for homes and businesses, including solar photovoltaic panels, battery storage, air source heat pumps and electric vehicle chargers. Provides system design,…
Sells to homeowners, businesses and industrial organisations seeking renewable energy systems, including solar PV, battery storage, heat pumps and EV chargers. Serves domestic, commercial and…
Financial Health
StrongStrong · 10% CAGR over 2y
Location
GOOD ENERGY PR LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies 100% renewable electricity tariffs to households and businesses. Installs and supports home energy technologies including solar panels, battery storage systems, heat pumps and electric…
Serves UK households, homeowners and EV drivers, alongside businesses seeking renewable energy tariffs and greener home or workplace energy technologies.
Financial Health
StableStable · -68% CAGR over 4y
Location
Team Renewables Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsDesigns and installs solar photovoltaic (PV) systems, battery storage and electric vehicle charging points for residential and commercial properties. Also provides feasibility studies, electrical…
Serves both B2C and B2B markets: homeowners, commercial building owners, businesses and industrial sites, plus project partners needing renewable energy consultation or contracting support.
Financial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
Brookfield Renewable Energies Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and installs solar photovoltaic (PV) systems and battery storage for residential and commercial properties. Provides system design, technical surveys, installation, maintenance, and solar…
Serves homeowners and small businesses seeking solar and battery storage systems, plus property owners with existing solar panels needing maintenance or cleaning.
Financial Health
StrongStrong · Growing, Hiring · 58% CAGR over 4y
Location
A Coole Electrical Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides electrical contracting services including installation and maintenance of power and lighting systems, EV charging points, solar PV and battery storage, smart meters, and isolation switches,…
Targets a mix of B2B, public sector and residential customers across the UK, including commercial and industrial sites, retailers, offices, care homes, education providers, housing associations,…
Financial Health
HealthyHealthy · -9% CAGR over 2y
Location
Ecogise Group Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsHolding company overseeing businesses that provide electrical contracting services, including electrical installation, maintenance and design, energy‑efficient lighting systems, and domestic and…
Serves a mix of B2B and consumer customers: commercial and industrial organisations, UK businesses with energy needs, homeowners across Yorkshire, and commercial or retail property tenants in the…
Financial Health
WeakWeak · 0% CAGR over 4y
Location
GEN-C LTD
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsSupplies spare parts and components for gas engines and generator systems, including spark plugs, RS motors and control equipment. Provides engine and control panel upgrades, firmware updates, and…
Serves UK businesses and public-sector sites operating gas engines, gensets and CHP systems, especially anaerobic digestion, renewable energy, heat-and-power and waste management operators.
Financial Health
StableStable · -63% CAGR over 4y
Location
Future Proof Innovations Group Ltd
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsDesigns, supplies and installs renewable energy systems for domestic and commercial properties, including solar PV panels, battery storage and EV charging points. Provides system design, installation…
Targets a mix of B2C and B2B customers nationwide: homeowners looking to improve household energy resilience and commercial premises owners or managers planning renewable energy upgrades.
Financial Health
StableStable · 0% CAGR over 3y
Location
R J ELECTRICAL AND SECURITY LIMITED
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides electrical contracting services including installation, maintenance and testing for commercial, industrial and domestic premises. Also installs EV charging points, solar PV and battery…
Serves private and corporate clients, including homeowners, commercial premises, industrial sites, leisure businesses, apartment and office block owners, and EV adopters at home or work, mainly…
Financial Health
WeakWeak · -92% CAGR over 2y
Location
Clover Roofing Services Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides roofing services for residential and commercial buildings, including pitched and flat roof construction, roof tiling and slating, leadwork, insulation, repairs, and installation of…
Serves national house builders, construction firms, commercial property owners, public-sector organisations, and homeowners or business owners in Doncaster and across Yorkshire seeking roofing…
Financial Health
StrongStrong · Growing · 0% CAGR over 2y
Location
SARIA Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProcesses animal by-products and food waste into products for food, pet food, agriculture and industry. Produces protein ingredients, biofertilisers, biofuels and renewable energy, and provides…
Serves B2B customers across the UK food chain, including farms, food manufacturers and processors, food service businesses, pet food and aquaculture producers, agricultural users and industrial…
Financial Health
WeakWeak · 1% CAGR over 2y
Location
Develops and manufactures membrane‑free electrolysers used to produce green hydrogen from water using renewable electricity. Provides hydrogen production technology and systems for industrial,…
Serves B2B organisations developing green hydrogen applications, including wastewater utilities, biomass and energy-from-waste operators, grid and data centre operators, life sciences facilities,…
Financial Health
Insufficient historyInsufficient history
Location
DJB Installs Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides installation of renewable energy and energy efficiency systems including solar PV panels, battery storage, EV chargers, air source heat pumps and insulation. Works with homeowners, landlords…
Serves homeowners, landlords, business owners, eligible households, local councils, housing associations, charities and public-sector bodies seeking funded energy-efficiency and renewable upgrades.
Financial Health
StrongStrong · Growing, Hiring · 39% CAGR over 2y
Location
Ecogise Electrical Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides electrical contracting services including installation, maintenance and design for commercial and industrial projects. Installs energy‑efficient lighting and solar PV systems for domestic…
Serves businesses and consumers, including commercial and industrial organisations, UK businesses with premises suitable for solar PV, and homeowners across Yorkshire interested in domestic solar.
Financial Health
StrongStrong · Growing, Hiring · 7% CAGR over 4y
Location
Skill Step Group Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides project delivery services for rail electrification and energy infrastructure, including installation of electric vehicle charging points. Also delivers training programmes and workforce…
Serves rail and energy sector organisations, especially rail industry clients, as well as employers, learners and local community groups seeking sector-specific training programmes.
Financial Health
StrongStrong
Location
Scarbrook Electrical Limited
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides electrical design, installation and project management for commercial buildings, social housing and domestic properties. Also installs electric heating systems, LED lighting upgrades and…
Serves commercial contractors, local authorities, housing developers, social housing providers and domestic customers, including schools, care facilities and commercial property owners.
Financial Health
StrongStrong · Growing, Hiring · 9% CAGR over 4y
Location
Ivoltz Limited
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsProvides electrical contracting services including fixed wiring installation and maintenance for residential and commercial properties. Designs and installs solar photovoltaic systems, battery…
Serves homeowners, businesses and Octopus Energy customers planning electrical, renewable energy, EV charging or security projects.
Financial Health
StrongStrong · Growing, Hiring · 13% CAGR over 2y
Location
SOUTH YORKSHIRE REFRIGERATION LTD
Trajectory
5y · 2020–NowFinancial sub-scores
Computed from 5 filingsDesigns, installs and maintains air conditioning and refrigeration systems for commercial, retail, agricultural and specialist environments, including climate‑controlled storage. Provides system…
Serves B2B agricultural, commercial, retail and scientific organisations needing climate-controlled environments, including offices, IT facilities, food producers, retailers and university sites…
Financial Health
StableStable
Location
R L Dear Limited
Trajectory
3y · 2023–NowProcesses animal by-products and food waste collected from farms, abattoirs, food producers and catering businesses. Manufactures animal feed ingredients, rendered fats, meat and bone meal fuel, and…
Serves UK farmers, abattoirs, meat processors, shops and catering businesses, and sells to pet food and aquaculture manufacturers, energy users and farmers worldwide.
Financial Health
Insufficient historyInsufficient history
Location
JG Pears
Collects and processes animal by-products and food waste from farms, abattoirs, food manufacturers and catering businesses. Produces animal feed ingredients, fats and oils, meat and bone meal fuel,…
Serves UK businesses needing animal by-product or food waste collection, including farmers, abattoirs, meat processors, butchers, retailers and catering operators. Also sells to global manufacturers…
Location
J G Pears Rendering
Collects and processes animal by-products, fallen stock and food waste from farms, abattoirs and catering businesses. Renders materials into animal feed ingredients, fats and oils, meat and bone meal…
Serves farmers, abattoirs, meat processors, shops and catering businesses needing animal by-product or food waste collection, plus global petfood, aquaculture feed and fertiliser customers.
Location
Pfisterer CSU UK Limited
Trajectory
4y · 2023–NowFinancial sub-scores
Computed from 4 filingsDevelops and manufactures electrical connection and insulation technology for power grids. Supplies high‑voltage cable accessories, fittings and components used in power generation, transmission and…
Serves B2B customers in energy infrastructure, including power suppliers, transmission and distribution grid operators, utilities and OEMs across power generation, substations, overhead, underground…
Financial Health
StrongStrong · Hiring · 13% CAGR over 3y
Location
SOLAR ENERGY GROUP LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsInstalls solar photovoltaic systems, battery storage units and electric vehicle charging points for residential and commercial properties. Provides system design, supply and installation of renewable…
Serves homeowners and business managers across the UK, including domestic, commercial and industrial property owners seeking solar, battery storage, EV charging, off-grid systems or maintenance.
Financial Health
StableStable
Location
Gigawatt Industries Ltd
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides electrical, mechanical and civil engineering services for electric vehicle charging infrastructure, including design, grid connections, installation and commissioning of AC and DC chargers,…
Serves B2B and public-sector buyers, including EV charging operators, charging investors, public authorities, workplaces and commercial site owners across mainland UK.
Financial Health
StrongStrong · Growing, Hiring · 13% CAGR over 2y
Location
Marvel Heating & Renewable Energy Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsProvides design, installation and servicing of renewable and domestic heating systems including heat pumps, solar PV panels, battery storage, boilers and underfloor heating, alongside gas and…
Serves homeowners, businesses, commercial farms and public sector organisations seeking renewable energy and heating upgrades, from single-home projects to larger commercial sites.
Financial Health
StrongStrong · Growing · 1% CAGR over 4y
Location
VSL - VANGUARD SERVICES LTD
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides electrical installation and maintenance services, security systems such as CCTV, access control and intruder alarms, rail infrastructure support including trackside works and vegetation…
Serves B2B clients in rail, construction, demolition and commercial property, including contractors, site managers and blue-chip organisations needing project-based site, electrical and security…
Financial Health
WeakWeak · -91% CAGR over 2y
Location
S.J.S Agriplant Ltd
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsRecycles wood and green waste into biomass fuel, providing wood chipping and shredding, skip hire, and site clearance. Harvests and bales straw for biomass power stations and uses waste wood to fuel…
Serves waste management companies, construction/site clearance contractors, farms and organisations needing wood or green waste disposal, plus biomass and straw-fuelled power stations seeking…
Financial Health
HealthyHealthy · -5% CAGR over 4y
Location
THE MATRIX ACADEMY LTD
Trajectory
3y · 2022–NowFinancial sub-scores
Computed from 3 filingsDesigns and installs renewable energy systems for domestic and commercial properties, including air and ground source heat pumps, biomass boilers, solar PV and thermal panels, battery storage and EV…
Serves homeowners, small businesses and commercial property owners seeking renewable energy systems, plus housing developers needing energy assessments and industry partners such as renewable energy…
Financial Health
DistressedDistressed
Location
Calder Electrical Services Limited
Trajectory
3y · 2023–NowFinancial sub-scores
Computed from 3 filingsProvides electrical contracting services for domestic, commercial and industrial clients, including electrical installations, maintenance and call-outs. Installs EV chargers, LED lighting, consumer…
Serves a mix of domestic, commercial and industrial customers, including homeowners, landlords, new-build projects, businesses and organisations across Wakefield, Yorkshire and beyond that need…
Financial Health
HealthyHealthy · Hiring · 12% CAGR over 2y
Location
TURBINE MARKETING LIMITED
Trajectory
5y · 2021–NowFinancial sub-scores
Computed from 5 filingsDesigns and installs renewable energy systems for residential and commercial properties, including solar photovoltaic panels, battery storage and air source heat pumps. Provides system design, site…
Serves UK homeowners and commercial property owners, including businesses with larger sites, seeking lower energy bills through solar, battery storage or low-carbon heating options.
Financial Health
WeakWeak · -6% CAGR over 4y
Location
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How Sheffield Renewable Energy companies work and how to sell to them
What they do
Revenue usually comes from a blend of asset development, installation and engineering fees, operations and maintenance retainers, power sales, consultancy, and compliance or metering support. Asset owners may earn through electricity offtake arrangements, while installers and contractors price around surveys, design work, equipment supply, labour, connection work and post-installation support. Payment models therefore vary: fixed-price project phases, milestone billing, call-off maintenance, performance-linked service fees or longer-term asset-management contracts. Typical engagements are not self-serve purchases; they are scoped around a site, a technology type and a risk profile, with margin affected by grid access, equipment availability, safety requirements and how much operational responsibility the supplier retains.
Who they sell to
Customers are usually site owners and organisations with energy cost, decarbonisation or resilience targets: manufacturers, warehouses, landlords, universities, councils, housing providers and energy-market intermediaries. Buying groups tend to include estates directors, facilities managers, sustainability leads, procurement teams, finance directors and external technical advisers. Smaller commercial jobs may be sourced through referrals or direct sales, while public-sector and property work often runs through frameworks, tenders or consultant-led procurement. Contract size tends to track the physical scope, from feasibility and audit work through to capital projects and operating agreements. Sales cycles are commonly measured in months because buyers need surveys, payback assumptions, legal review, budget approval and clarity on ongoing service liability.
What they buy
Most Sheffield renewable-energy firms tend to spend on field-service management, project scheduling, document control, health-and-safety systems, asset monitoring, metering, forecasting and customer reporting. Commercial teams may need CRM, tender tracking, proposal automation and contract management, particularly where work is won through frameworks or repeat site roll-outs. Finance and operations buyers often look at billing, procurement, stock control, fleet management, insurance, legal support and credit control, because cash can be tied up in equipment, subcontractors and staged payments. Technical teams may also buy engineering design services, environmental advice, cyber security, cloud hosting and recruitment for electricians, project managers, compliance staff and operations engineers.
Why and how to sell to them
Commercial intent often appears when a firm wins a new framework place, secures planning or grid progress, expands its installer base, takes on larger sites, refinances assets or hires senior project, finance or operations staff. Common pressures include long receivables, volatile equipment costs, evidence-heavy compliance work, health-and-safety risk and the need to prove generation, uptime or savings after handover. Outbound messages tend to land better when they attach to a specific operating constraint: reducing rework in site surveys, improving audit trails for Ofgem-facing activity, tightening subcontractor control, speeding invoice recovery or making project performance easier to explain to boards and procurement teams.
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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