| Veolia Es Southwark Ltd | £209.0m | 3 |
| Total Gas And Power Ltd | £125.9m | 24 |
| Greener Ealing Limited | £123.1m | 2 |
| Suez Recycling And Recovery Uk Ltd | £121.5m | 6 |
| Edf Energy Customers Plc | £107.2m | 20 |
| Countrystyle Recycling Limited | £96.2m | 3 |
| Fcc Waste Management Ltd | £94.1m | 5 |
| Lampton Recycle 360 Limited | £67.9m | 2 |
| Vital Energi Utilities Ltd | £57.3m | 8 |
| Cory Environmental Ltd T/A Cory Riverside Energy | £54.8m | 2 |
| Essex & Suffolk Water_F | £38.5m | 4 |
| Laser Energy Supplies | £37.5m | 3 |
| Redbridge Civic Services Ltd | £36.6m | 1 |
| South East London Combined Heat & Power Ltd | £36.6m | 2 |
| Castle Point Gas And Heating Co Ltd | £34.2m | 3 |
| Affinity Water | £32.4m | 12 |
| Uk Power Networks (Operations) Ltd | £31.9m | 29 |
| Bywaters (London) Ltd | £22.4m | 6 |
| Erith Contractors Ltd | £16.5m | 15 |
| Castle Water Ltd | £14.2m | 30 |
| Smartestenergy Ltd | £12.5m | 3 |
| Serco Shared Services Centre | £11.7m | 4 |
| Hsl Compliance Ltd | £11.3m | 15 |
| B & D Energy Ltd | £10.9m | 3 |
| Biffa Waste Services Ltd | £9.3m | 11 |
| Viridor Waste Management Limited T/A Viridor South London Ltd | £8.7m | 2 |
| Thames Water Utilities Ltd | £8.5m | 30 |
| Trojan Energy Ltd | £8.3m | 5 |
| Eon Energy | £7.6m | 19 |
| Powerday Plc | £6.3m | 9 |
| Anglian Water Business (National) Ltd T/A Wave | £6.2m | 11 |
| Anglian Water Business National | £6.0m | 6 |
| A.H.Nicholls & Sons Ltd | £5.8m | 1 |
| Cadent Gas Ltd | £5.7m | 20 |
| Edf Energy | £5.6m | 22 |
| Barkantine Heat & Power Company Ltd | £5.5m | 1 |
| Equans Fm Limited | £5.4m | 1 |
| Sssi Ltd | £5.0m | 2 |
| British Gas Trading Ltd | £4.9m | 26 |
| Asbestos Solutions Limited | £4.7m | 3 |
| Corona Energy 4 Retail Limited | £4.4m | 1 |
| Kier Integrated Services Ltd | £4.2m | 3 |
| Squibb Group Ltd | £4.2m | 4 |
| N&P Crayford Mrf Ltd | £3.7m | 3 |
| British Gas Business | £3.7m | 21 |
| John F Hunt Regeneration Ltd | £3.6m | 2 |
| Xco2 Energy Limited | £3.2m | 14 |
| Ecotricity Limited | £3.2m | 10 |
| Scottish Power | £3.1m | 20 |
| Land And Water | £3.1m | 1 |
| Totalenergies Gas & Power Limited Tgp | £3.0m | 1 |
| Acr London Ltd | £2.8m | 2 |
| Comcare Environmental Services | £2.8m | 4 |
| Edf Energy 1 Ltd | £2.8m | 7 |
| British Gas | £2.7m | 22 |
| Cappagh Public Works Ltd | £2.3m | 2 |
| The Primary First Trust Re Lessness Heat | £2.2m | 1 |
| Drax Energy Solution Ltd | £2.1m | 12 |
| Kent Group Services Limited | £2.0m | 2 |
| Surrey Environmental Services | £2.0m | 1 |
| Gazprom Marketing And Trading Ltd | £1.9m | 4 |
| Advanced Demand Side Management Ltd | £1.9m | 4 |
| Eon Heat | £1.9m | 2 |
| Char.Gy Limited | £1.8m | 7 |
| Woods Building Services Ltd T/A Aa Woods | £1.8m | 5 |
| Water Plus Ltd | £1.8m | 4 |
| Mrs Environmental Services Ltd | £1.8m | 1 |
| Opus Energy Ltd | £1.7m | 24 |
| Integrated Water Services Ltd | £1.7m | 6 |
| Lathams Recycling Centre Ltd | £1.7m | 1 |
| Thames21 | £1.6m | 14 |
| Corona Energy Retail 4 Ltd | £1.6m | 14 |
| Emergent Energy Systems Ltd | £1.5m | 1 |
| Serco Solutions | £1.4m | 2 |
| Biogen Uk Ltd | £1.3m | 1 |
| South East London Community Energy | £1.3m | 5 |
| Premier Drainage Services Uk Ltd | £1.3m | 2 |
| Zest Eco Ltd | £1.2m | 2 |
| Joju Limited | £1.2m | 7 |
| Citron Hygiene Limited | £1.1m | 10 |
| Fraser Water Services Ltd | £1.1m | 5 |
| Plan B Management Solutions Ltd | £1.1m | 4 |
| Edenbeck Limited | £1.1m | 1 |
| Elliott Environmental Drainage Ltd | £1.1m | 1 |
| Charman Environmental Serv Ltd | £1.0m | 2 |
| Wave Utilities T/A Anglian Water Busines | £968.2k | 1 |
| Rsk Environment Ltd | £935.3k | 15 |
| Envar Composting Ltd | £906.8k | 1 |
| Eon Uk Plc | £888.7k | 17 |
| R Collard Ltd | £869.6k | 3 |
| Hightech Water Services Limited | £864.5k | 2 |
| London Waste And Recycling Board | £852.1k | 16 |
| Crew Energy Ltd | £835.0k | 4 |
| Ebsford Environmental Ltd | £820.3k | 3 |
| Scottish & Southern Electricity Networks | £814.0k | 2 |
| Npower Commercial Gas Limited (Ncgl) | £812.7k | 6 |
| Medisort Ltd | £792.6k | 6 |
| Ustigate Water Display Specialists | £781.9k | 1 |
| Eon Next Energy Limited | £775.4k | 14 |
| Super Fast Service Ltd | £774.8k | 1 |
| Renewi Uk Services Ltd. | £765.4k | 1 |
| Electric Centre | £701.1k | 2 |
| Npower Business Solutions | £699.2k | 2 |
| Bjm Waste Ltd | £677.1k | 1 |
| Sgn Connections Ltd | £665.4k | 8 |
| Corona Lep-Laser Gas | £643.9k | 1 |
| Pozitive Energy Ltd | £630.2k | 12 |
| Cube Environmental Services Ltd | £625.3k | 1 |
| Clean And Serene Ltd | £621.0k | 1 |
| Acs Business Group Ltd | £618.8k | 3 |
| Anglian Water | £612.4k | 2 |
| Jet Maintenance Ltd | £609.5k | 1 |
| Mcculloughs Limited | £599.6k | 1 |
| Hardy Drainage Limited | £599.4k | 3 |
| Northumbrian Water Ltd_F | £593.6k | 5 |
| Hounslow Furniture Recycling Project | £590.3k | 1 |
| Sse Energy Supply Limited | £585.0k | 6 |
| Polaris Power And Data Ltd | £573.3k | 1 |
| Westminster Waste | £549.2k | 5 |
| Express Environmental Solutions Ltd | £547.1k | 3 |
| Sutton Decentralised Energy Network Limited | £540.4k | 2 |
| Keysource Ltd | £538.9k | 2 |
| Octavia Housing Bridge Water House | £534.8k | 1 |
| Safe Water Io Ltd | £530.7k | 4 |
| Asbestech Limited | £525.1k | 5 |
| Southern Gas Networks Plc | £513.2k | 7 |
| Cognition Land & Water Limited | £510.3k | 1 |
| Commercial Drainage Services (Essex) Ltd | £509.8k | 1 |
| Tynetec A Division Of Legrand Electric Ltd | £507.6k | 2 |
| Viridor Waste Kent Limited | £496.6k | 2 |
| Fleetsolve Ltd | £491.0k | 1 |
| Anglian Water Utilities | £489.6k | 1 |
| Allied Water Ltd | £458.2k | 1 |
| Modus Utilities Ltd | £454.5k | 2 |
| Thames Water Utilities Ltd [Sn38 2Tw] | £452.6k | 1 |
| Drainfix Services Ltd_A | £440.2k | 3 |
| Hydro-X Air Limited | £431.3k | 2 |
| T & S Environmental Ltd | £420.0k | 3 |
| Ams Plumbing And Heating | £418.0k | 1 |
| Active Environmental Management Ltd | £416.8k | 2 |
| Wcs Ductclean (A Trading Name Of Guardian Water Treatment Ltd) | £416.7k | 3 |
| 17 Npower 660336419 | £409.3k | 1 |
| Southern Electric Power Distribution Plc | £408.1k | 4 |
| Team (Energy Auditing Agency Ltd) | £393.0k | 6 |
| Rts Waste Management Ltd | £392.8k | 2 |
| South East Water Limited | £389.1k | 2 |
| Sefe Energy Ltd | £378.8k | 10 |
| British Gas Trading Ltd T/As British Gas Business | £376.5k | 1 |
| Future Street Smart Waste Ltd | £375.8k | 7 |
| Air Liquide Advanced Business & Technologies Uk Limited | £358.3k | 1 |
| Legrand Electric Ltd T/As Tynetec | £352.4k | 1 |
| Xc02 Energy Ltd | £348.5k | 4 |
| Gw Drains Ltd | £344.3k | 1 |
| Independent Water Networks Ltd | £341.3k | 2 |
| Purchase Power | £334.0k | 6 |
| Oco Heating & Mechanical | £309.2k | 1 |
| Noah'S Ark Environmental Services Ltd | £304.9k | 4 |
| Rsk Hi-Line Ltd | £302.5k | 3 |
| Am Air Conditioning (Uk) Ltd_F | £300.0k | 2 |
| Removal Remedy Limited | £299.1k | 1 |
| Mark Watmore Plumb & Heating | £298.4k | 1 |
| West London Drains Limited | £285.5k | 1 |
| Tynetec A Bu Of Legrand Electric Ltd | £279.1k | 1 |
| Heating Plumbing Supplies | £278.8k | 2 |
| Facility Management Uk Limited | £277.9k | 1 |
| Salix Mechanical Ltd | £268.6k | 2 |
| Sterling Hydrotech Ltd | £266.7k | 3 |
| Octopus Energy | £264.7k | 15 |
| Ovo Energy Limited Partnership Payments | £243.3k | 3 |
| Lanes Group Plc | £242.9k | 10 |
| E.On Energy Solutions Lmited | £240.0k | 1 |
| Smartestenergybusinessltd | £236.4k | 7 |
| Aspect Contracts Limited | £232.5k | 4 |
| Brent Oil Contractors Ltd | £232.5k | 4 |
| Cartigo Ltd | £229.3k | 1 |
| Lakedale Power Tools | £215.5k | 4 |
| Consolidated Logistics Services Ltd | £214.1k | 1 |
| Armour Environmental Services Ltd | £212.6k | 2 |
| Wave Anglian Water Business | £204.5k | 2 |
| E.On Uk Infrastructure Services Ltd | £203.1k | 2 |
| Hydro Cleansing Ltd | £201.7k | 6 |
| London Energy Saving Squad Ltd | £199.2k | 2 |
| Energy Assets Limited | £197.4k | 12 |
| Saving Energy Ltd | £194.9k | 2 |
| Mcallister Bros Ltd | £194.5k | 4 |
| Anglian Water Business (National) Wave | £194.2k | 1 |
| Mcculloughs Hvac Ltd | £192.9k | 1 |
| Environmental Services Design | £192.5k | 1 |
| First Mile Limited | £191.8k | 3 |
| Matt Uk Ltd | £182.3k | 1 |
| Yu Energy Retail Limited Ta Yu Ener | £182.1k | 7 |
| Technical Waste Solutions | £178.6k | 1 |
| Ajf Heating Mechanical & Electrical | £176.4k | 1 |
| Wcs Environmental Limited | £175.9k | 1 |
| A J Pain Waste Management Ltd | £175.1k | 2 |
| Edf Energy Customer Field Services | £170.8k | 3 |
| Sustainable Energy Purchasing Ltd | £167.9k | 2 |
| Alpine Air Limited | £165.4k | 1 |
| Technical Drain Solutions Ltd | £164.7k | 2 |
| Drainline Southern Limited | £163.1k | 3 |
| Jontek A Business Unit Of Legrand Electric Ltd | £161.3k | 2 |
| Heverin Haulage Ltd | £160.6k | 2 |
| Scottish Power Energy | £159.6k | 2 |
| Jsd Solutions 24/7 Ltd | £156.9k | 2 |
| Powerday Waste Management | £155.3k | 1 |
| Mcdonald Water Storage | £154.8k | 1 |
| Centre For Sustainable Energy | £154.3k | 5 |
| Willow Environmental Ltd | £153.8k | 1 |
| Forest Recycling Project Ltd | £152.4k | 3 |
| Regional Waste Recycling (Commercial) Ltd | £152.0k | 2 |
| Van Vynck Environmental Services | £150.0k | 1 |
| Lightning Electrical Service Ltd | £147.9k | 1 |
| Personnel Hygiene Services Ltd | £147.6k | 2 |
| Actual Support Services Ltd | £144.9k | 3 |
| Enviro Waste London Ltd | £142.1k | 3 |
| Power Up North London | £141.0k | 2 |
| Jontek Ltd - A Business Unit Of Legrand Electric | £132.8k | 1 |
| Veolia Energy And Utility Services | £130.9k | 1 |
| Severn Trent Services Operations Uk Ltd | £130.4k | 2 |
| Pinpoint Drainage Services Ltd | £130.1k | 3 |
| Total Shred Ltd | £129.6k | 4 |
| Fulcrum Site Services Ltd | £128.4k | 1 |
| Sfe Services Air Conditioning & Refrigeration Ltd | £127.9k | 1 |
| Uk Power Network Services (Com | £125.3k | 3 |
| Energy Auditing Agency Limited [Team] | £124.8k | 1 |
| Dawsetway Heating & Renewables Ltd | £124.6k | 1 |
| Edf Energy-Put Bills On 10002726 | £124.3k | 1 |
| European Metal Recycling Ltd | £123.9k | 1 |
| Hydro-X Water Treatment Limited | £122.6k | 4 |
| Islington Sustainable Energy Partnership | £120.7k | 1 |
| Thrive Core Energy Coaching | £117.5k | 1 |
| British Gas Service Limited | £117.5k | 5 |
| Synergy Asset Services Ltd | £115.8k | 4 |
| Thames Water Utilites Ltd - Rent Collection Account | £115.5k | 1 |
| Element Energy Limited | £114.7k | 3 |
| Lili Waste Services Ltd | £112.1k | 1 |
| Energetik C/O Switch2 Energy Ltd | £111.7k | 1 |
| Sutton And East Surrey Water | £109.8k | 1 |
| Ricardo Energy And Environment | £105.2k | 1 |
| Power The Fight | £103.9k | 6 |
| Thames Water Utilities Ltd Developer Services & Infra | £103.2k | 1 |
| Brook Green Supply Limited | £98.9k | 4 |
| Sse Heat Networks Limited | £94.3k | 2 |
| Synergy Recycling Ltd | £92.0k | 3 |
| London Museum Of Water And Steam | £91.7k | 1 |
| Puma Power Projects Limited | £90.7k | 1 |
| Home Energy Action Lab Limited | £90.4k | 2 |
| Londonenergy Ltd | £89.2k | 3 |
| Economic Skips Ltd | £89.1k | 1 |
| Ocmis Ltd | £88.4k | 1 |
| Robin Hood Energy | £87.9k | 2 |
| Crest Cooperative Ltd | £87.8k | 1 |
| Build & Maintenance Ltd | £86.6k | 1 |
| Miw Water Cooler Experts | £86.4k | 4 |
| Energy Saving Lighting (Uk) Lt | £85.3k | 1 |
| Environmental Tankers Ltd T/A Envi Tankers | £84.8k | 1 |
| Energy Gardens Limited | £84.0k | 1 |
| Avid Pest Control Limited | £83.9k | 1 |
| Association For Decentralised Energy (Ade) | £82.4k | 7 |
| The Renewable Energy Company Ltd | £82.1k | 4 |
| Energy Kidz Ltd | £81.8k | 5 |
| Sustainable Energy 24 Ltd | £81.7k | 1 |
| Stulz Uk Ltd | £80.2k | 1 |
| Product Plumbing & Heating Ltd - Pph | £77.6k | 1 |
| Kps Composting Services Ltd | £77.0k | 1 |
| Power 2 Connect | £76.6k | 1 |
| Power The Fight Charity | £74.5k | 1 |
| Sse- ( Southern Electric Energy Services) - Part Of Ovo Family | £73.4k | 1 |
| Sse Power Distribution | £73.0k | 1 |
| Pedal Power | £72.8k | 3 |
| Rhodar Limited | £72.6k | 1 |
| Stennetts Ltd | £72.6k | 2 |
| Junk Bunk Ltd | £72.6k | 1 |
| Scottish Power Energy Retail Limited | £72.2k | 7 |
| Air Cool Engineering Service & Maint Ltd | £71.5k | 2 |
| Just Clear Ltd | £69.8k | 6 |
| Chskips | £69.0k | 2 |
| Pinden Limited | £68.1k | 1 |
| Scottish Water Business Stream Ltd | £67.9k | 1 |
| Silver Energy Management Solutions | £67.7k | 2 |
| Ian Underhill Drainage And Building Specialist Ltd | £64.9k | 1 |
| Capitol Essential Services Ltd | £64.9k | 1 |
| Waste To Wonder | £64.2k | 2 |
| Veolia | £64.0k | 1 |
| S.Grundon (Waste) Ltd. | £63.3k | 1 |
| Dept Business Energy Industrial | £63.3k | 1 |
| Wood World Missions Power Church Centre | £62.8k | 1 |
| Redhead Demolitions Co Ltd | £62.8k | 1 |
| O'Donovan (Waste Disposal) Ltd | £61.6k | 1 |
| Stratford Utilities Ltd | £61.5k | 1 |
| Albus Environmental Ltd | £60.8k | 2 |
| Biomatrix Water Solutions Ltd | £60.0k | 1 |
| Tecomak Environmental Services Ltd | £56.9k | 3 |
| Ifr Services Ltd T/A Drain Doctor London Central | £55.6k | 2 |
| Retail Utilities Solutions Limited | £55.4k | 1 |
| Tradebe Healthcare National Limited | £55.4k | 1 |
| L C Energy | £54.9k | 2 |
| Vac Environmental Services Ltd | £54.9k | 1 |
| Tynetech Ltd - Business Unit Of Legrand Electric | £54.3k | 1 |
| East London Biogas Ltd | £53.1k | 1 |
| Sutton And East Surrey Water Servic | £52.8k | 2 |
| Esos Energy Ltd | £51.9k | 3 |
| Data Energy Management Services | £50.7k | 2 |
| Beautiful Spaces, By David Ltd | £50.6k | 1 |
| Mems Ltd T/A Mems Power Generation | £50.6k | 1 |
| Stokey Energy | £50.0k | 1 |
| Gi Hadfield & Son Ltd | £49.4k | 1 |
| Sse Energy Solutions | £48.2k | 3 |
| Japanese Knotweed Solutions Ltd | £48.1k | 2 |
| Specialist Power Engineering | £47.8k | 1 |
| Waste Not Want Not Battersea C | £47.6k | 1 |
| Wh Construction Ltd | £47.6k | 2 |
| Ubitricity Distribured Energy Syste | £47.4k | 1 |
| Alfred H Knight Energy Services | £47.3k | 2 |
| Reston Waste Management Ltd | £47.1k | 1 |
| Temporary Water Solutions Limited | £46.4k | 1 |
| The Well Group Limited | £46.4k | 2 |
| Miw Office Solutions Ltd T/As Water Cooler Expert | £46.3k | 1 |
| Simply Loos Environmental Services | £45.9k | 1 |
| Shell Energy Retail Ltd | £45.8k | 9 |
| Waste Not Want Not | £44.8k | 1 |
| Gas Brand Studio Ltd. | £44.0k | 1 |
| Rjs Waste Management Uk Ltd | £43.0k | 1 |
| London Heating Solutions | £43.0k | 1 |
| Standard Energy (London) Limited | £43.0k | 1 |
| Sizzling Heat | £42.5k | 1 |
| Gas Distribution Solutions Limited | £41.5k | 1 |
| Second Element Ltd | £40.6k | 1 |
| Base Energy | £40.2k | 1 |
| Lavender Clearances Ltd | £40.0k | 1 |
| Airis Energy Solutions Ltd | £40.0k | 1 |
| Phoenix Environmental Management Ltd | £40.0k | 1 |
| Water 2 Business Limited | £39.8k | 7 |
| Thames Water Developer Services | £39.1k | 3 |
| Commercial Services Kent Ltd | £38.8k | 5 |
| Kent Waste Management Ltd | £38.2k | 1 |
| Sb Recycling Machinery | £38.0k | 1 |
| Watkins Energy Limited | £36.5k | 2 |
| Secure Measures Marine Ltd | £36.5k | 2 |
| Grays Waste Services Ltd | £36.5k | 1 |
| London Waste And Recycling Boa | £36.0k | 2 |
| Team Energy Auditing Agency Ltd | £35.9k | 1 |
| Rhodar Industrial Services Ltd | £35.9k | 1 |
| General Demolition | £35.5k | 2 |
| What A Load Of Rubbish Limited | £35.4k | 1 |
| Newham Community Recycling | £35.4k | 1 |
| Greenbox Events Ltd | £35.2k | 1 |
| Vibrant Energy Surveys Ltd | £35.1k | 1 |
| Phs Ltd T/A Phs Waste Management | £34.0k | 2 |
| Mcgovern Haulage Ltd | £33.9k | 1 |
| Windsor Waste Management Ltd | £33.8k | 1 |
| G J Bowmer Waste Disposal Limi | £33.8k | 1 |
| Sse Business Energy | £33.3k | 3 |
| G & S Waste Management Ltd | £33.0k | 1 |
| Aleam Environmental Services Ltd | £32.8k | 1 |
| Bulb Energy | £32.7k | 9 |
| Rhino Waste Services Ltd | £32.5k | 1 |
| Sewer Surveys Uk Limited | £32.0k | 2 |
| E E Solutions Ltd | £32.0k | 2 |
| Asgen Ltd | £31.8k | 1 |
| Hydro Descaling Limited | £31.7k | 6 |
| Aquevo Ltd | £31.4k | 4 |
| Ruby Electricity Ltd | £31.3k | 6 |
| Power To Connect Cic | £30.0k | 1 |
| Blue Flag Environmental Services Ltd | £29.9k | 1 |
| Mag Heating Ltd | £29.7k | 1 |
| Canada Water Fc | £29.6k | 1 |
| Terracycle Uk Ltd | £29.6k | 2 |
| Peter Norris (Haulage) Limited | £29.4k | 1 |
| Stoke Energy | £29.3k | 1 |
| The Power Movement Organisation | £28.6k | 1 |
| Ses - Sutton And East Surrey Water | £28.2k | 1 |
| Ribbex Uk Ltd | £28.1k | 2 |
| Ridley Recycling Limited | £27.8k | 2 |
| Easy Clear | £27.5k | 2 |
| Newport Recycling Ltd | £27.3k | 1 |
| P J Woods & Sons Ltd | £26.9k | 3 |
| Sse Southern Electric | £26.8k | 2 |
| Mitsubishi Electric Europe B.V. | £26.4k | 2 |
| Ac & Vent Solutions Limited | £26.3k | 1 |
| Artesian Air Limited | £25.9k | 1 |
| Benchmark Environmental Ltd | £25.8k | 1 |
| Pipeline Drain Solutions Ltd | £25.8k | 2 |
| Thames Water Utilities, Developer Services | £25.8k | 1 |
| All Season Air Conditioning Services Ltd | £25.5k | 3 |
| Wastestream Services Ltd | £25.4k | 1 |
| Kee Environmental Ltd | £25.1k | 2 |
| Barr And Wray Ltd | £25.1k | 2 |
| Crown Gas And Power Ltd | £25.0k | 3 |
| The Meal Team Power Packs Limited | £24.3k | 3 |
| Dacco Ltd | £24.3k | 1 |
| Hereford Asbestos Services Limited | £24.2k | 1 |
| Amstech Asbestos Removal Limited | £24.0k | 2 |
| Ambipar Response Ltd | £23.8k | 2 |
| Letbudget Limited | £23.8k | 1 |
| Good Energy Ltd | £23.7k | 4 |
| Mel Waste Insights | £23.7k | 2 |
| Hartley Contracting Services Ltd | £23.6k | 1 |
| Grundon Waste Management Ltd | £23.6k | 5 |
| Energy Controls Group Ltd | £23.6k | 2 |
| Junkwize Ltd | £23.3k | 5 |
| Pitney Bowes Purchase Power | £23.1k | 3 |
| Environmental Reclamation Services Ltd | £23.1k | 1 |
| Bells Power Group Ltd | £22.9k | 1 |
| Raymac Plumbing And Heating | £22.6k | 1 |
| Switch2 Energy Ltd - Inv Ref Si | £22.6k | 1 |
| Ruby Energy | £22.5k | 3 |
| Drainage Repair Specialists Co | £22.5k | 2 |
| Slicker Recycling Ltd | £22.3k | 1 |
| Meridian Technical Services Ltd | £22.0k | 1 |
| Humidity Response Ltd | £21.9k | 1 |
| Galmark Electrical Ltd | £21.8k | 1 |
| G S Heating Services | £21.8k | 1 |
| Ev Smart (Uk) Ltd | £21.7k | 1 |
| Shell Energy | £21.6k | 3 |
| Solo Asbestos Consultants Limited | £21.4k | 2 |
| Dyno Pest Limited | £21.4k | 1 |
| Thames Electricity Limited | £20.9k | 1 |
| Whatever Waste Ltd | £20.8k | 1 |
| Ground-Gas Solutions Limited | £20.1k | 1 |
| Clear It Out Ltd | £20.0k | 1 |
| Cycle Power | £20.0k | 1 |
| Hinton Skips Uk Ltd | £20.0k | 1 |
| London & Surrey Gas Services | £20.0k | 1 |
| Rubbish Clearance Ltd | £20.0k | 1 |
| Rww Plumbing & Heating Ltd | £20.0k | 1 |
| Sms Environmental Limited | £19.8k | 1 |
| D W F Plumbing And Heating | £19.5k | 1 |
| Ron Smith Recycling Ltd | £19.5k | 2 |
| The Power Service | £19.5k | 11 |
| Anrcorp Limited T/A Western Fried And Peri Peri | £19.4k | 1 |
| Sse Power Distribution Cable Damages South | £19.4k | 1 |
| Egniol Consulting Limited | £19.2k | 1 |
| Reef Water Solutions Ltd | £19.2k | 2 |
| Gas Safe Register | £18.9k | 3 |
| Esss Llp | £18.8k | 1 |
| Eton Environmental Services Ltd | £18.6k | 1 |
| Energy Marketing Group Limited | £18.5k | 1 |
| Pearce Recycling Group | £18.4k | 2 |
| Std Civils Ltd | £17.5k | 2 |
| Sse Energy Services | £17.4k | 2 |
| Ejt Environmental Services | £17.4k | 1 |
| Gazprom Energy | £17.2k | 2 |
| Opus Gas Supply Ltd | £17.2k | 1 |
| O Donovan Waste Disposal Ltd | £17.2k | 1 |
| Ses Water | £17.1k | 2 |
| Safety Industries | £16.9k | 4 |
| Powertutors Limited Power Tutors | £16.2k | 1 |
| Premier Energy | £16.0k | 1 |
| Edf Energy-Dom | £15.9k | 3 |
| Armstrong Drainage & Plumbing Ltd | £15.5k | 1 |
| Express Utilities Ltd | £15.4k | 4 |
| Drain Inspect Uk Ltd | £15.4k | 2 |
| East London Energy | £15.2k | 1 |
| Stormsaver Ltd | £15.2k | 2 |
| Hydreau Limited | £14.6k | 3 |
| Link 2 London Ltd | £14.6k | 1 |
| Churchills Services Ltd | £14.6k | 1 |
| Clockwork | £14.3k | 1 |
| Scottish & Southern Energy (Southern Electric & Swalec) | £14.0k | 2 |
| Bes Utilities | £13.9k | 3 |
| 1St Environmental Services Ltd | £13.9k | 1 |
| Option Business Services Ltd | £13.8k | 1 |
| Elmhurst Energy | £13.6k | 2 |
| Asbestos First Limited | £13.6k | 1 |
| Electric Star Old Street | £13.6k | 1 |
| National Grid Gas Plc | £13.4k | 1 |
| Utilita Energy | £13.4k | 10 |
| Recolight Ltd | £13.3k | 2 |
| Ses Business Water | £13.1k | 6 |
| Anthesis Energy Uk Ltd | £13.1k | 2 |
| Right Waste Ltd | £13.1k | 1 |
| Tardis Environmental Uk Ltd | £13.1k | 3 |
| Power Jointing And Distribution Services | £13.1k | 2 |
| Southern Environmental Services Limited | £13.0k | 3 |
| Hosier Haulage And Waste Disposal Ltd | £12.8k | 1 |
| Future Energy Performance | £12.8k | 2 |
| City Batteries Ltd | £12.8k | 1 |
| Technicoolairconditioningltd | £12.7k | 2 |
| Environmental Waste Management Ltd | £12.4k | 1 |
| Edf Energy - Electric | £12.3k | 1 |
| Westcross Environmental Services Ltd | £12.2k | 1 |
| Serco Ltd-The Epc | £12.1k | 1 |
| Sounds Electric | £12.0k | 2 |
| Drax Power Station | £11.7k | 1 |
| Hawkins And Scott Limited | £11.7k | 1 |
| Ecs Water Services | £11.6k | 1 |
| Elite Heating Installaion Services Ltd | £11.6k | 1 |
| Sustainable Energy First | £11.5k | 1 |
| Edf Energy Cust Field Services | £11.5k | 2 |
| National Energy Action | £11.4k | 2 |
| Space Rubbish Ltd | £11.4k | 1 |
| E-On Energy Electricity Income | £11.2k | 1 |
| Eclipse Power Networks Ltd | £11.2k | 1 |
| G&J Geoenvironmental Consultants Ltd | £11.1k | 1 |
| Wernick Power Solutions | £10.9k | 1 |
| D J Hinton & Co Ltd | £10.9k | 1 |
| Cyb Environmental Ltd | £10.9k | 1 |
| John Old T/A J.Gold Gas & Plumbing | £10.8k | 1 |
| Ambient Environmental Solutions Ltd | £10.8k | 1 |