| 1 | ▲2 |  | 51toCarbonZero | Measurement & Reporting | Carbon Accounting | Authority |
| 2 | ▼1 |  | Future Tech Solar | Energy Solutions | Building Retrofit & Refurbishment | Authority |
| 3 | ▼1 |  | Eevery | Measurement & Reporting | Carbon Accounting | Authority |
| 4 | ▲25 |  | 3DegreeGroup | Advisory & Strategy | | Basic |
| 5 | ▲13 |  | Acre | Training & Culture | Recruitment & Talent Services | Authority |
| 6 | ▼2 |  | Accenture (UK) Ltd | Advisory & Strategy | | Basic |
| 7 | ▲16 |  | 1% for the Planet | Impact Organisations | | Basic |
| 8 | ▼3 |  | ads-tec Energy GmbH | Energy Solutions | | Basic |
| 9 | ▲10 |  | Affirmative Sustainability | Measurement & Reporting | | Basic |
| 10 | — |  | AccountAbility | Advisory & Strategy | | Basic |
| 11 | — |  | Action Sustainability | Advisory & Strategy | | Basic |
| 12 | ▲34 |  | AdGreen | Training & Culture | | Basic |
| 13 | ▲20 |  | ACT | Carbon Markets & Offsetting | | Basic |
| 14 | ▲377 |  | Marine Stewardship Council | Impact Organisations | | Basic |
| 15 | ▲2 |  | 100Green | Energy Solutions | | Basic |
| 16 | ▲38 |  | Aether | Advisory & Strategy | | Basic |
| 17 | ▲13 |  | ACA Group | Advisory & Strategy | | Basic |
| 18 | ▼6 |  | A Good Thing | Impact Organisations | | Basic |
| 19 | ▲41 |  | Amp X | Energy Solutions | | Basic |
| 20 | ▲226 |  | Blue Marble | Advisory & Strategy | | Basic |
| 21 | ▼7 |  | Aggreko | Energy Solutions | | Basic |
| 22 | ▲2 |  | Abatable | Carbon Markets & Offsetting | | Basic |
| 23 | ▲11 |  | Above and Beyond Recuitment | Training & Culture | | Basic |
| 24 | ▲1 |  | Ad Net Zero | Advisory & Strategy | | Basic |
| 25 | ▼9 |  | AG impact | Advisory & Strategy | | Basic |
| 26 | ▼20 |  | 3Ti Energy Hubs | Energy Solutions | | Basic |
| 27 | ▼19 |  | Aequilibria Srl | Advisory & Strategy | | Basic |
| 28 | ▼19 |  | Adam Smith Center | Training & Culture | | Basic |
| 29 | ▲6 |  | ACRcarbon | Carbon Markets & Offsetting | | Basic |
| 30 | ▲13 |  | 1t | Biodiversity & Nature | | Basic |
| 31 | ▲281 |  | Ecotricity | Energy Solutions | Renewable Energy Supply | Authority |
| 32 | ▲7 |  | Ailuna | Training & Culture | | Basic |
| 33 | ▲255 |  | Terraformation | Biodiversity & Nature | | Basic |
| 34 | ▲114 |  | Science Based Targets | Certifications & Standards | | Basic |
| 35 | ▼15 |  | Anthesis Group | Advisory & Strategy | | Basic |
| 36 | ▲17 |  | Auditel | Advisory & Strategy | | Basic |
| 37 | ▲85 |  | Rawstone Consulting | Advisory & Strategy | | Basic |
| 38 | ▲227 |  | University of Bergen | Training & Culture | | Basic |
| 39 | ▼11 |  | Aura | Finance & Funding | | Basic |
| 40 | ▲9 |  | aashe | Membership Organisations & Alliances | | Basic |
| 41 | ▼5 |  | B Corporation | Certifications & Standards | | Basic |
| 42 | ▲31 |  | Bedrock Energy | Energy Solutions | | Basic |
| 43 | ▲19 |  | Benchmark Gensuite | Measurement & Reporting | | Basic |
| 44 | ▲94 |  | Aldersgate Group | Membership Organisations & Alliances | | Basic |
| 45 | ▲192 |  | EDF Energy | Energy Solutions | | Basic |
| 46 | ▲108 |  | Arenko | Energy Solutions | | Basic |
| 47 | ▲200 |  | Carbmee | Measurement & Reporting | | Basic |
| 48 | ▲202 |  | ERM | Advisory & Strategy | | Basic |
| 49 | ▲6 |  | Ample | Mobility | | Basic |
| 50 | ▲410 |  | EY | Advisory & Strategy | | Basic |
| 51 | ▲224 |  | National Grid plc | Energy Solutions | | Basic |
| 52 | ▲596 |  | Forest Stewardship Council | Biodiversity & Nature | | Basic |
| 53 | ▲45 |  | Humber 2030 Vision | Membership Organisations & Alliances | | Basic |
| 54 | ▲342 |  | PA Consulting | Advisory & Strategy | | Basic |
| 55 | ▲360 |  | Good Energy | Energy Solutions | Renewable Energy Supply | Engage |
| 56 | ▲481 |  | Grain Sustainability | Advisory & Strategy | Impact & Performance Assessment | Engage |
| 57 | ▲617 |  | Sage Earth | Measurement & Reporting | Carbon Accounting | Basic |
| 58 | ▲16 |  | Alphabet | Mobility | | Basic |
| 59 | ▲56 |  | Assent | Measurement & Reporting | | Basic |
| 60 | ▲202 |  | Renewable Energy Institute | Training & Culture | | Basic |
| 61 | ▲66 |  | One Tribe | Carbon Markets & Offsetting | Carbon Credit Providers | Authority |
| 62 | ▲66 |  | Arcadis | Products & Materials | | Basic |
| 63 | ▲26 |  | Altruistiq | Measurement & Reporting | | Basic |
| 64 | ▲149 |  | AlliedOffets | Carbon Markets & Offsetting | | Basic |
| 65 | ▲75 |  | Biffa Waste Services Ltd | Waste & Circular Economy | | Basic |
| 66 | ▲159 |  | R-E-A The Association for Renewable Energy and Clean Technology | Energy Solutions | | Basic |
| 67 | ▲40 |  | Ampd Energy | Energy Solutions | | Basic |
| 68 | ▲40 |  | Brockwell Energy Limited | Energy Solutions | | Basic |
| 69 | ▲627 |  | ESFORIN SE | Energy Solutions | | Basic |
| 70 | ▲42 |  | Balanced | Advisory & Strategy | | Basic |
| 71 | ▲93 |  | Ampersand Partners | Advisory & Strategy | | Basic |
| 72 | ▼11 |  | Axiom | Measurement & Reporting | | Basic |
| 73 | ▲93 |  | Carbon Capture | Carbon Markets & Offsetting | | Basic |
| 74 | ▲93 |  | Deepki | Measurement & Reporting | | Basic |
| 75 | ▲468 |  | EcoOnline | Measurement & Reporting | | Basic |
| 76 | ▼1 |  | EnergyCAP | Energy Solutions | | Basic |
| 77 | ▲44 |  | Normative | Measurement & Reporting | | Basic |
| 78 | ▼46 |  | Tesla | Energy Solutions | | Basic |
| 79 | ▲485 |  | Impact Dragonfly | Training & Culture | | Basic |
| 80 | ▲123 |  | Utility Warehouse | Energy Solutions | | Basic |
| 81 | ▼34 |  | albert | Certifications & Standards | | Basic |
| 82 | ▼34 |  | AM Ventures | Finance & Funding | | Basic |
| 83 | ▼33 |  | Keep Energy Systems | Energy Solutions | | Basic |
| 84 | ▲500 |  | Climate Action for Associations | Membership Organisations & Alliances | | Basic |
| 85 | ▲292 |  | Eco Green IT Recycling | Waste & Circular Economy | | Basic |
| 86 | ▲311 |  | Planet Mark | Certifications & Standards | | Basic |
| 87 | ▲334 |  | Pure Energy UK | Energy Solutions | | Basic |
| 88 | ▲342 |  | CEN-ESG | Advisory & Strategy | | Basic |
| 89 | ▲27 |  | char.gy | Energy Solutions | | Basic |
| 90 | ▲527 |  | Co2Ai | Measurement & Reporting | | Basic |
| 91 | ▲80 |  | Green Business Benchmark | Certifications & Standards | | Basic |
| 92 | ▲88 |  | Verdantix | Advisory & Strategy | | Basic |
| 93 | ▲247 |  | CISL University of Cambridge | Training & Culture | | Basic |
| 94 | ▲31 |  | Volans | Advisory & Strategy | | Basic |
| 95 | ▲173 |  | Cake | Mobility | | Basic |
| 96 | ▲33 |  | Carbon Tracker | Advisory & Strategy | | Basic |
| 97 | ▲364 |  | ISEP | Membership Organisations & Alliances | | Basic |
| 98 | ▲534 |  | Social Tech Trust | Finance & Funding | | Basic |
| 99 | ▼59 |  | SuReal | Advisory & Strategy | | Basic |
| 100 | ▼43 |  | Believ | Energy Solutions | | Basic |
| 101 | ▲183 |  | Gold Standard | Carbon Markets & Offsetting | | Basic |
| 102 | ▼61 |  | Cority | Measurement & Reporting | | Basic |
| 103 | ▲187 |  | Go Green Experts | Advisory & Strategy | | Basic |
| 104 | ▲38 |  | Circular11 | Waste & Circular Economy | | Basic |
| 105 | ▲389 |  | Cool Earth | Impact Organisations | | Basic |
| 106 | ▲189 |  | Doughnut Economics Action Lab | Impact Organisations | | Basic |
| 107 | ▲189 |  | Earth Science Partnership | Advisory & Strategy | | Basic |
| 108 | ▲270 |  | EcoMatcher | Biodiversity & Nature | | Basic |
| 109 | ▲279 |  | IEMA | Membership Organisations & Alliances | | Basic |
| 110 | ▲192 |  | Marketplace For Nature | Biodiversity & Nature | | Basic |
| 111 | ▲281 |  | Meaningful Business Limited | Membership Organisations & Alliances | | Basic |
| 112 | ▲197 |  | Circular Computing | Waste & Circular Economy | | Basic |
| 113 | ▼62 |  | ScottishPower | Energy Solutions | | Basic |
| 114 | ▲581 |  | Energie 360 | Energy Solutions | | Basic |
| 115 | ▲412 |  | Emissis | Energy Solutions | | Basic |
| 116 | ▼7 |  | Envantage | Energy Solutions | Energy Efficiency Solutions | Engage |
| 117 | ▼7 |  | Heliatek | Energy Solutions | | Basic |
| 118 | ▲38 |  | Highview Power | Energy Solutions | | Basic |
| 119 | ▲412 |  | Metris Energy | Energy Solutions | | Basic |
| 120 | ▲38 |  | Perfect Sense Energy | Energy Solutions | | Basic |
| 121 | ▲311 |  | Climatise | Measurement & Reporting | | Basic |
| 122 | ▲208 |  | Novata Inc | Measurement & Reporting | | Basic |
| 123 | ▲208 |  | Pluscharge | Energy Solutions | | Basic |
| 124 | ▼44 |  | UL LLC | Advisory & Strategy | | Basic |
| 125 | ▲63 |  | Clarke Controls | Energy Solutions | | Basic |
| 126 | ▼43 |  | InnoEnergy | Energy Solutions | | Basic |
| 127 | ▲62 |  | RheEnergise | Energy Solutions | | Basic |
| 128 | ▲65 |  | Carbon Footprint | Carbon Markets & Offsetting | | Basic |
| 129 | ▲330 |  | ECOFACT | Advisory & Strategy | | Basic |
| 130 | ▲223 |  | European Investment Bank | Finance & Funding | | Basic |
| 131 | ▲66 |  | Hitachi ZeroCarbon | Energy Solutions | | Basic |
| 132 | ▲66 |  | IP Group LC | Finance & Funding | | Basic |
| 133 | ▲330 |  | Kantar Advisory | Finance & Funding | | Basic |
| 134 | ▲335 |  | Sustainable Ventures | Finance & Funding | | Basic |
| 135 | ▲343 |  | Ecosurety | Waste & Circular Economy | | Basic |
| 136 | ▲542 |  | Invinity Energy Systems | Energy Solutions | | Basic |
| 137 | ▲442 |  | Sylvera | Carbon Markets & Offsetting | | Basic |
| 138 | ▲74 |  | Verse | Energy Solutions | | Basic |
| 139 | ▲229 |  | Alliance for Water Stewardship | Certifications & Standards | | Basic |
| 140 | ▼1 |  | Better Business Act | Membership Organisations & Alliances | | Basic |
| 141 | ▲75 |  | Carbonmark | Carbon Markets & Offsetting | | Basic |
| 142 | ▲349 |  | CarbonStore | Carbon Markets & Offsetting | | Basic |
| 143 | ▼47 |  | Charm Industrial | Carbon Markets & Offsetting | | Basic |
| 144 | ▲153 |  | Energy Innovation Agency | Energy Solutions | | Basic |
| 145 | ▲237 |  | Equitane | Finance & Funding | | Basic |
| 146 | ▲152 |  | Finance Earth | Finance & Funding | | Basic |
| 147 | ▲505 |  | Innovation Gateway | Finance & Funding | | Basic |
| 148 | ▼4 |  | Lets Pollinate | Advisory & Strategy | | Basic |
| 149 | ▲359 |  | Project Vesta | Biodiversity & Nature | | Basic |
| 150 | ▲259 |  | Water UK | Membership Organisations & Alliances | | Basic |
| 151 | ▲83 |  | World Benchmarking Alliance | Membership Organisations & Alliances | | Basic |
| 152 | ▼47 |  | Octopus Energy | Energy Solutions | | Basic |
| 153 | ▼47 |  | ENGIE UK | Energy Solutions | | Basic |
| 154 | ▲265 |  | Entrnce | Energy Solutions | | Basic |
| 155 | — |  | Hero Future Energies | Energy Solutions | | Basic |
| 156 | ▲376 |  | NEXWAFE | Energy Solutions | | Basic |
| 157 | ▼46 |  | Sustainable Energy First | Energy Solutions | | Basic |
| 158 | ▲84 |  | Carbon Architecture | Advisory & Strategy | Sustainability Strategy | Authority |
| 159 | ▲4 |  | Stickerbook by Obliquity | Training & Culture | Behaviour Change & Engagement Programmes | Authority |
| 160 | ▲378 |  | Plan A | Measurement & Reporting | | Engage |
| 161 | ▲161 |  | bp pulse | Energy Solutions | | Basic |
| 162 | ▲162 |  | Carbon+Alt+Delete | Measurement & Reporting | | Basic |
| 163 | ▲268 |  | Climact | Advisory & Strategy | | Basic |
| 164 | ▲269 |  | Enistic Ltd | Measurement & Reporting | | Basic |
| 165 | ▲164 |  | Greenly | Measurement & Reporting | | Basic |
| 166 | ▲274 |  | Manifest Climate | Measurement & Reporting | | Basic |
| 167 | ▲86 |  | Nordic Sustainability | Advisory & Strategy | | Basic |
| 168 | ▼105 |  | POD Point | Energy Solutions | | Basic |
| 169 | ▲86 |  | QLM Technology | Measurement & Reporting | | Basic |
| 170 | ▼132 |  | Risilience | Advisory & Strategy | | Basic |
| 171 | ▲10 |  | WAP Sustainability | Advisory & Strategy | | Basic |
| 172 | ▼159 |  | Watershed | Measurement & Reporting | | Basic |
| 173 | ▲276 |  | Greenomy | Training & Culture | | Basic |
| 174 | ▼93 |  | Tomorrow | Training & Culture | | Basic |
| 175 | ▲167 |  | Woodwell Climate | Training & Culture | | Basic |
| 176 | ▲379 |  | MSCI Sustainability Institute | Training & Culture | | Basic |
| 177 | ▲8 |  | Deakin University | Training & Culture | | Basic |
| 178 | ▼52 |  | Centrica Business Solutions | Energy Solutions | | Basic |
| 179 | ▲377 |  | Centrica Energy | Energy Solutions | | Basic |
| 180 | ▲11 |  | Breakthrough Energy | Finance & Funding | | Basic |
| 181 | ▲276 |  | Cambridge Enterprise | Finance & Funding | | Basic |
| 182 | ▲442 |  | Carbon Trust | Advisory & Strategy | | Basic |
| 183 | ▲167 |  | CHOOOSE | Advisory & Strategy | | Basic |
| 184 | ▲442 |  | Clean Growth Fund | Finance & Funding | | Basic |
| 185 | ▲87 |  | Elexon | Energy Solutions | | Basic |
| 186 | ▲87 |  | ESSEC Business School | Training & Culture | | Basic |
| 187 | ▼101 |  | Humber Zero | Carbon Markets & Offsetting | | Basic |
| 188 | ▼54 |  | The University of Western Australia | Training & Culture | | Basic |
| 189 | ▲284 |  | Capitals Coalition | Membership Organisations & Alliances | | Authority |
| 190 | ▲90 |  | Bywaters Ltd | Waste & Circular Economy | | Basic |
| 191 | ▲285 |  | Climate Clarity | Training & Culture | | Basic |
| 192 | ▲375 |  | Climeworks | Carbon Markets & Offsetting | | Basic |
| 193 | ▲375 |  | Custom Solar | Energy Solutions | | Basic |
| 194 | ▲15 |  | The Wildlife Trusts | Biodiversity & Nature | | Basic |
| 195 | ▼103 |  | Bankers for Net Zero | Finance & Funding | | Basic |
| 196 | ▼55 |  | Brook Green Supply | Energy Solutions | | Basic |
| 197 | ▲293 |  | BSI Group | Certifications & Standards | | Basic |
| 198 | ▲445 |  | Cradle to Cradle Products Innovation Institute | Certifications & Standards | | Basic |
| 199 | ▲298 |  | Earth Hero | Training & Culture | | Basic |
| 200 | ▲18 |  | Earth Law Center | Advisory & Strategy | | Basic |
| 201 | ▲179 |  | Enchar | Carbon Markets & Offsetting | | Basic |
| 202 | ▼59 |  | Impact Management Platform | Membership Organisations & Alliances | | Basic |
| 203 | ▲302 |  | Integrated Reporting | Certifications & Standards | | Basic |
| 204 | ▲197 |  | Sustainable Network | Membership Organisations & Alliances | | Basic |
| 205 | ▼146 |  | World Fund | Finance & Funding | | Basic |
| 206 | ▲107 |  | So Energy | Energy Solutions | | Basic |
| 207 | ▲322 |  | ESB Energy | Energy Solutions | | Basic |
| 208 | ▲108 |  | GRIDSERVE | Energy Solutions | EV Charging Infrastructure | Engage |
| 209 | ▼49 |  | Varco Energy | Advisory & Strategy | | Basic |
| 210 | ▼97 |  | BM certification | Certifications & Standards | | Basic |
| 211 | ▲110 |  | Climate Impact Partners | Carbon Markets & Offsetting | | Engage |
| 212 | ▲33 |  | Blu Skye Consulting | Advisory & Strategy | | Basic |
| 213 | ▲110 |  | BSR | Advisory & Strategy | | Basic |
| 214 | ▲327 |  | Climate Essentials | Measurement & Reporting | | Basic |
| 215 | ▲327 |  | CO2logic | Measurement & Reporting | | Basic |
| 216 | ▼99 |  | EarthHub | Advisory & Strategy | | Basic |
| 217 | ▲32 |  | Eden Smith | Training & Culture | | Basic |
| 218 | ▼50 |  | Energyworx Inc. | Energy Solutions | | Basic |
| 219 | ▲32 |  | EnviTrail | Measurement & Reporting | | Basic |
| 220 | ▼51 |  | First Climate | Measurement & Reporting | | Basic |
| 221 | ▼177 |  | Forliance | Carbon Markets & Offsetting | | Basic |
| 222 | ▲323 |  | GoClimate | Measurement & Reporting | | Basic |
| 223 | ▼51 |  | Green Future Project | Measurement & Reporting | | Basic |
| 224 | ▲324 |  | JRP Solutions | Advisory & Strategy | | Basic |
| 225 | ▼50 |  | Mobilityways | Mobility | | Basic |
| 226 | ▼50 |  | NET ZERO International | Advisory & Strategy | | Basic |
| 227 | ▼163 |  | Rock Power Connections | Energy Solutions | | Basic |
| 228 | ▼51 |  | Seedling | Measurement & Reporting | | Basic |
| 229 | ▼47 |  | Wayvie | Training & Culture | | Basic |
| 230 | ▼106 |  | Worldly | Advisory & Strategy | | Basic |
| 231 | ▲219 |  | Climate School | Training & Culture | | Basic |
| 232 | ▲106 |  | Trinity College Dublin | Training & Culture | | Basic |
| 233 | ▲30 |  | FutureLearn | Training & Culture | | Basic |
| 234 | ▼50 |  | Saïd Business School - University of Oxford | Training & Culture | | Basic |
| 235 | ▲108 |  | Sustainable Hive | Training & Culture | | Basic |
| 236 | ▲30 |  | IBM Envizi ESG Suite | Measurement & Reporting | | Basic |
| 237 | ▲219 |  | Power Roll | Energy Solutions | | Basic |
| 238 | ▼154 |  | Verte Ltd | Advisory & Strategy | Energy Efficiency Solutions | Engage |
| 239 | ▲386 |  | Carbon13 | Finance & Funding | | Basic |
| 240 | ▲30 |  | CBN Expert | Measurement & Reporting | | Basic |
| 241 | ▼47 |  | CSO Futures | Training & Culture | | Basic |
| 242 | ▲317 |  | Datamaran | Measurement & Reporting | | Basic |
| 243 | ▼158 |  | Deloitte | Advisory & Strategy | | Basic |
| 244 | ▲108 |  | Emerald City Ventures | Finance & Funding | | Basic |
| 245 | ▼115 |  | Energy Impact Partners | Finance & Funding | | Basic |
| 246 | ▲216 |  | Innovate UK | Finance & Funding | | Basic |
| 247 | ▼47 |  | OnePointFive | Training & Culture | | Basic |
| 248 | ▼47 |  | SET Ventures | Finance & Funding | | Basic |
| 249 | ▼114 |  | Time to Act | Finance & Funding | | Basic |
| 250 | ▼46 |  | Walker Institute | Training & Culture | | Basic |