| 1 | — |  | 51toCarbonZero | Measurement & Reporting | Carbon Accounting | Authority |
| 2 | ▲1 |  | Eevery | Measurement & Reporting | Carbon Accounting | Authority |
| 3 | ▼1 |  | Future Tech Solar | Energy Solutions | Building Retrofit & Refurbishment | Authority |
| 4 | ▲7 |  | Action Sustainability | Advisory & Strategy | | Basic |
| 5 | ▲21 |  | 3Ti Energy Hubs | Energy Solutions | | Basic |
| 6 | — |  | Accenture (UK) Ltd | Advisory & Strategy | | Basic |
| 7 | ▲1 |  | ads-tec Energy GmbH | Energy Solutions | | Basic |
| 8 | ▼1 |  | 1% for the Planet | Impact Organisations | | Basic |
| 9 | ▲1 |  | AccountAbility | Advisory & Strategy | | Basic |
| 10 | ▲11 |  | Aggreko | Energy Solutions | | Basic |
| 11 | ▲18 |  | ACRcarbon | Carbon Markets & Offsetting | | Basic |
| 12 | ▼7 |  | Acre | Training & Culture | Recruitment & Talent Services | Authority |
| 13 | ▼4 |  | Affirmative Sustainability | Measurement & Reporting | | Basic |
| 14 | ▲34 |  | ERM | Advisory & Strategy | | Basic |
| 15 | ▲2 |  | ACA Group | Advisory & Strategy | | Basic |
| 16 | ▲11 |  | Aequilibria Srl | Advisory & Strategy | | Basic |
| 17 | ▼4 |  | ACT | Carbon Markets & Offsetting | | Basic |
| 18 | ▲6 |  | Ad Net Zero | Advisory & Strategy | | Basic |
| 19 | ▲63 |  | AM Ventures | Finance & Funding | | Basic |
| 20 | ▲404 |  | Innovation Roundtable | Membership Organisations & Alliances | | Basic |
| 21 | ▲138 |  | Stickerbook by Obliquity | Training & Culture | Behaviour Change & Engagement Programmes | Authority |
| 22 | ▲282 |  | Watts Sustainability | Training & Culture | | Basic |
| 23 | ▲5 |  | Adam Smith Center | Training & Culture | | Basic |
| 24 | ▼12 |  | AdGreen | Training & Culture | | Basic |
| 25 | ▼7 |  | A Good Thing | Impact Organisations | | Basic |
| 26 | ▼4 |  | Abatable | Carbon Markets & Offsetting | | Basic |
| 27 | ▼4 |  | Above and Beyond Recuitment | Training & Culture | | Basic |
| 28 | ▲12 |  | aashe | Membership Organisations & Alliances | | Basic |
| 29 | ▲6 |  | Anthesis Group | Advisory & Strategy | | Basic |
| 30 | ▲42 |  | Axiom | Measurement & Reporting | | Basic |
| 31 | ▲1 |  | Ailuna | Training & Culture | | Basic |
| 32 | ▲506 |  | Wharton Executive Education | Training & Culture | | Basic |
| 33 | ▼29 |  | 3DegreeGroup | Advisory & Strategy | | Basic |
| 34 | ▲393 |  | Nature Deal | Impact Organisations | | Basic |
| 35 | ▲35 |  | Balanced | Advisory & Strategy | | Basic |
| 36 | — |  | Auditel | Advisory & Strategy | | Basic |
| 37 | ▲89 |  | InnoEnergy | Energy Solutions | | Basic |
| 38 | ▼8 |  | 1t | Biodiversity & Nature | | Basic |
| 39 | ▲25 |  | AlliedOffets | Carbon Markets & Offsetting | | Basic |
| 40 | ▲71 |  | Meaningful Business Limited | Membership Organisations & Alliances | | Basic |
| 41 | ▼16 |  | AG impact | Advisory & Strategy | | Basic |
| 42 | ▲16 |  | Alphabet | Mobility | | Basic |
| 43 | ▲16 |  | Assent | Measurement & Reporting | | Basic |
| 44 | ▲417 |  | Sphera Solutions Inc | Measurement & Reporting | | Basic |
| 45 | ▼1 |  | Aldersgate Group | Membership Organisations & Alliances | | Basic |
| 46 | ▼5 |  | B Corporation | Certifications & Standards | | Basic |
| 47 | ▲148 |  | Bankers for Net Zero | Finance & Funding | | Basic |
| 48 | ▼33 |  | 100Green | Energy Solutions | | Basic |
| 49 | ▼3 |  | Arenko | Energy Solutions | | Basic |
| 50 | ▼8 |  | Bedrock Energy | Energy Solutions | | Basic |
| 51 | ▲68 |  | Metris Energy | Energy Solutions | | Basic |
| 52 | ▲319 |  | Eunomia Research & Consulting | Advisory & Strategy | | Basic |
| 53 | ▼37 |  | Aether | Advisory & Strategy | | Basic |
| 54 | ▲11 |  | Biffa Waste Services Ltd | Waste & Circular Economy | | Basic |
| 55 | ▼36 |  | Amp X | Energy Solutions | | Basic |
| 56 | ▲316 |  | Ever Sustainable | Advisory & Strategy | | Basic |
| 57 | ▲34 |  | Green Business Benchmark | Certifications & Standards | | Basic |
| 58 | ▲110 |  | POD Point | Energy Solutions | | Basic |
| 59 | ▲467 |  | SOUTH POLE | Advisory & Strategy | | Basic |
| 60 | ▼11 |  | Ample | Mobility | | Basic |
| 61 | ▲1 |  | Arcadis | Products & Materials | | Basic |
| 62 | ▼23 |  | Aura | Finance & Funding | | Basic |
| 63 | ▼12 |  | National Grid plc | Energy Solutions | | Basic |
| 64 | ▲35 |  | SuReal | Advisory & Strategy | | Basic |
| 65 | ▲609 |  | Upright Project | Measurement & Reporting | | Basic |
| 66 | ▲72 |  | Verse | Energy Solutions | | Basic |
| 67 | ▼15 |  | Forest Stewardship Council | Biodiversity & Nature | | Basic |
| 68 | ▲42 |  | Marketplace For Nature | Biodiversity & Nature | | Basic |
| 69 | ▲212 |  | Re:wild | Impact Organisations | | Authority |
| 70 | ▲82 |  | Octopus Energy | Energy Solutions | | Basic |
| 71 | ▲42 |  | ScottishPower | Energy Solutions | | Basic |
| 72 | ▼5 |  | Ampd Energy | Energy Solutions | | Basic |
| 73 | ▲14 |  | Pure Energy UK | Energy Solutions | | Basic |
| 74 | ▲138 |  | Blu Skye Consulting | Advisory & Strategy | | Basic |
| 75 | ▲90 |  | Greenly | Measurement & Reporting | | Basic |
| 76 | ▲1 |  | Normative | Measurement & Reporting | | Basic |
| 77 | ▲151 |  | Seedling | Measurement & Reporting | | Basic |
| 78 | ▲449 |  | StepChange | Measurement & Reporting | | Basic |
| 79 | ▲499 |  | INJET New Energy | Energy Solutions | | Basic |
| 80 | ▲176 |  | Nature Metrics | Biodiversity & Nature | | Basic |
| 81 | — |  | albert | Certifications & Standards | | Basic |
| 82 | ▲511 |  | Global Action Plan | Impact Organisations | | Basic |
| 83 | ▼29 |  | PA Consulting | Advisory & Strategy | | Basic |
| 84 | ▲357 |  | Zero Carbon Forum | Membership Organisations & Alliances | | Basic |
| 85 | ▲200 |  | Celsius Energy | Energy Solutions | | Basic |
| 86 | ▲70 |  | NEXWAFE | Energy Solutions | | Basic |
| 87 | ▲71 |  | Carbon Architecture | Advisory & Strategy | Sustainability Strategy | Authority |
| 88 | ▼17 |  | Ampersand Partners | Advisory & Strategy | | Basic |
| 89 | ▲124 |  | BSR | Advisory & Strategy | | Basic |
| 90 | ▲73 |  | Climact | Advisory & Strategy | | Basic |
| 91 | ▲474 |  | Green & Good Consulting | Advisory & Strategy | | Basic |
| 92 | ▲281 |  | Greenpixie | Measurement & Reporting | | Basic |
| 93 | ▲281 |  | Greenr Technologies | Training & Culture | | Basic |
| 94 | ▲474 |  | Octopus Electric Vehicles | Mobility | | Basic |
| 95 | ▲132 |  | Rock Power Connections | Energy Solutions | | Basic |
| 96 | ▲205 |  | Spark2Beacon | Advisory & Strategy | | Basic |
| 97 | ▲474 |  | Sustainability Unlocked | Training & Culture | | Basic |
| 98 | ▲82 |  | Breakthrough Energy | Finance & Funding | | Basic |
| 99 | ▲291 |  | Generate Capital | Finance & Funding | | Basic |
| 100 | ▼3 |  | ISEP | Membership Organisations & Alliances | | Basic |
| 101 | ▲440 |  | Position Green | Measurement & Reporting | | Basic |
| 102 | ▲159 |  | Carbon Limiting Technologies Limited | Carbon Markets & Offsetting | | Basic |
| 103 | ▼20 |  | Keep Energy Systems | Energy Solutions | | Basic |
| 104 | ▲98 |  | Impact Management Platform | Membership Organisations & Alliances | | Basic |
| 105 | ▲240 |  | National Parks | Biodiversity & Nature | | Basic |
| 106 | ▼20 |  | Planet Mark | Certifications & Standards | | Basic |
| 107 | ▲521 |  | RecycleIT | Waste & Circular Economy | | Basic |
| 108 | ▲446 |  | RenewableUK | Energy Solutions | | Basic |
| 109 | ▲44 |  | ENGIE UK | Energy Solutions | | Basic |
| 110 | ▲6 |  | Envantage | Energy Solutions | Energy Efficiency Solutions | Engage |
| 111 | ▲253 |  | Statera Energy | Energy Solutions | | Basic |
| 112 | ▲99 |  | Climate Impact Partners | Carbon Markets & Offsetting | | Engage |
| 113 | ▲104 |  | Eden Smith | Training & Culture | | Basic |
| 114 | ▲105 |  | EnviTrail | Measurement & Reporting | | Basic |
| 115 | ▲109 |  | JRP Solutions | Advisory & Strategy | | Basic |
| 116 | ▲184 |  | SCS Global Services | Certifications & Standards | | Basic |
| 117 | ▲188 |  | Smith School - University of Oxford | Training & Culture | | Basic |
| 118 | ▲415 |  | Great British Energy | Energy Solutions | | Basic |
| 119 | ▲125 |  | Emerald City Ventures | Finance & Funding | | Basic |
| 120 | ▲11 |  | Hitachi ZeroCarbon | Energy Solutions | | Basic |
| 121 | ▲125 |  | Innovate UK | Finance & Funding | | Basic |
| 122 | ▲11 |  | Kantar Advisory | Finance & Funding | | Basic |
| 123 | ▲269 |  | LanzaTech | Carbon Markets & Offsetting | | Basic |
| 124 | ▲412 |  | Mitie | Waste & Circular Economy | | Basic |
| 125 | ▲269 |  | Northstar Ventures | Finance & Funding | | Basic |
| 126 | ▲121 |  | OnePointFive | Training & Culture | | Basic |
| 127 | ▲347 |  | Palatine Private Equity | Finance & Funding | | Basic |
| 128 | ▲279 |  | Argon & Co | Advisory & Strategy | | Basic |
| 129 | ▲10 |  | Alliance for Water Stewardship | Certifications & Standards | | Basic |
| 130 | ▲460 |  | DONG Energy Power (UK) Limited | Energy Solutions | | Basic |
| 131 | ▲360 |  | Green Angel Syndicate | Finance & Funding | | Basic |
| 132 | ▲210 |  | GRESB | Certifications & Standards | | Basic |
| 133 | ▲14 |  | Innovation Gateway | Finance & Funding | | Basic |
| 134 | ▲69 |  | Integrated Reporting | Certifications & Standards | | Basic |
| 135 | ▲461 |  | Isometric | Carbon Markets & Offsetting | | Basic |
| 136 | ▲423 |  | Canopy | Advisory & Strategy | | Authority |
| 137 | ▼106 |  | Ecotricity | Energy Solutions | Renewable Energy Supply | Authority |
| 138 | ▲68 |  | So Energy | Energy Solutions | | Basic |
| 139 | ▼84 |  | Good Energy | Energy Solutions | Renewable Energy Supply | Engage |
| 140 | ▲219 |  | E.ON UK PLC | Energy Solutions | | Basic |
| 141 | ▲519 |  | SSE Energy Solutions | Energy Solutions | | Basic |
| 142 | ▲307 |  | Low Carbon | Energy Solutions | | Basic |
| 143 | ▼26 |  | Heliatek | Energy Solutions | | Basic |
| 144 | ▲417 |  | Natural Power | Energy Solutions | | Basic |
| 145 | ▼25 |  | Perfect Sense Energy | Energy Solutions | | Basic |
| 146 | ▲308 |  | Schneider Electric | Energy Solutions | | Basic |
| 147 | ▲371 |  | SE Advisory Services | Advisory & Strategy | Sustainability Strategy | Authority |
| 148 | ▲144 |  | Green Praxis | Biodiversity & Nature | | Basic |
| 149 | ▼106 |  | Benchmark Gensuite | Measurement & Reporting | | Basic |
| 150 | ▲145 |  | Cyclescheme | Mobility | | Basic |
| 151 | ▼75 |  | EnergyCAP | Energy Solutions | | Basic |
| 152 | ▲66 |  | Energyworx Inc. | Energy Solutions | | Basic |
| 153 | ▲457 |  | Greengage Environmental | Advisory & Strategy | | Basic |
| 154 | ▲12 |  | Manifest Climate | Measurement & Reporting | | Basic |
| 155 | ▲70 |  | Mobilityways | Mobility | | Basic |
| 156 | ▼33 |  | Pluscharge | Energy Solutions | | Basic |
| 157 | ▲302 |  | Positive Momentum | Advisory & Strategy | | Basic |
| 158 | ▼66 |  | Verdantix | Advisory & Strategy | | Basic |
| 159 | ▲14 |  | Greenomy | Training & Culture | | Basic |
| 160 | ▲74 |  | Saïd Business School - University of Oxford | Training & Culture | | Basic |
| 161 | ▲146 |  | UrbanVolt | Energy Solutions | | Basic |
| 162 | ▲74 |  | IBM Envizi ESG Suite | Measurement & Reporting | | Basic |
| 163 | ▲304 |  | Catalyst | Energy Solutions | | Basic |
| 164 | ▼103 |  | One Tribe | Carbon Markets & Offsetting | Carbon Credit Providers | Authority |
| 165 | ▲218 |  | Carbon Accounting Alliance | Membership Organisations & Alliances | | Basic |
| 166 | ▲20 |  | ESSEC Business School | Training & Culture | | Basic |
| 167 | ▼37 |  | European Investment Bank | Finance & Funding | | Basic |
| 168 | ▲147 |  | Genesis | Advisory & Strategy | | Basic |
| 169 | ▼90 |  | Impact Dragonfly | Training & Culture | | Basic |
| 170 | ▲150 |  | OffGrid.Finance | Finance & Funding | | Basic |
| 171 | ▲224 |  | PCAF Global | Finance & Funding | | Basic |
| 172 | ▼109 |  | Altruistiq | Measurement & Reporting | | Basic |
| 173 | ▲447 |  | iwell | Energy Solutions | | Basic |
| 174 | ▲84 |  | Bain & Company | Advisory & Strategy | | Basic |
| 175 | ▲21 |  | Brook Green Supply | Energy Solutions | | Basic |
| 176 | ▲232 |  | Business Declares | Membership Organisations & Alliances | | Basic |
| 177 | ▲473 |  | UN Decade | Biodiversity & Nature | | Basic |
| 178 | ▼70 |  | EcoMatcher | Biodiversity & Nature | | Basic |
| 179 | ▲237 |  | EIT Food | Membership Organisations & Alliances | | Basic |
| 180 | ▲412 |  | Galp Energia | Mobility | | Basic |
| 181 | ▲160 |  | Green Seal | Certifications & Standards | | Basic |
| 182 | ▲161 |  | GRI | Certifications & Standards | | Basic |
| 183 | ▲411 |  | ICROA | Carbon Markets & Offsetting | | Basic |
| 184 | ▲241 |  | International Ethics Standards Board for Accountants | Certifications & Standards | | Basic |
| 185 | ▼37 |  | Lets Pollinate | Advisory & Strategy | | Basic |
| 186 | ▲364 |  | Make My Money Matter | Training & Culture | | Basic |
| 187 | ▲241 |  | Nature Tech Collective | Membership Organisations & Alliances | | Basic |
| 188 | ▲409 |  | Ocean Generation | Impact Organisations | | Basic |
| 189 | ▲410 |  | RSK | Advisory & Strategy | | Basic |
| 190 | ▲242 |  | Senken | Carbon Markets & Offsetting | | Basic |
| 191 | ▲247 |  | We Don't Have Time | Membership Organisations & Alliances | | Basic |
| 192 | ▲250 |  | One Planet Capital | Finance & Funding | | Basic |
| 193 | ▲252 |  | The Integrity Council | Carbon Markets & Offsetting | | Engage |
| 194 | ▼149 |  | EDF Energy | Energy Solutions | | Basic |
| 195 | ▲318 |  | OVO Energy Ltd | Energy Solutions | | Basic |
| 196 | ▲164 |  | Faradai | Energy Solutions | | Basic |
| 197 | ▼40 |  | Sustainable Energy First | Energy Solutions | | Basic |
| 198 | ▲11 |  | Varco Energy | Advisory & Strategy | | Basic |
| 199 | ▲11 |  | BM certification | Certifications & Standards | | Basic |
| 200 | ▲166 |  | Carbon Sense | Advisory & Strategy | | Basic |
| 201 | ▼41 |  | Plan A | Measurement & Reporting | | Engage |
| 202 | ▲435 |  | bip.Verco | Advisory & Strategy | | Engage |
| 203 | ▼39 |  | Enistic Ltd | Measurement & Reporting | | Basic |
| 204 | ▲16 |  | First Climate | Measurement & Reporting | | Basic |
| 205 | ▲91 |  | Future Planet | Measurement & Reporting | | Basic |
| 206 | ▲91 |  | ISOQAR | Certifications & Standards | | Basic |
| 207 | ▲360 |  | SustainGRC | Measurement & Reporting | | Basic |
| 208 | ▲472 |  | Mapmortar | Measurement & Reporting | | Basic |
| 209 | ▲167 |  | NeuerEnergy Ltd | Measurement & Reporting | | Basic |
| 210 | ▲89 |  | Palladium | Advisory & Strategy | | Basic |
| 211 | ▼42 |  | QLM Technology | Measurement & Reporting | | Basic |
| 212 | ▲358 |  | Small99 | Training & Culture | | Basic |
| 213 | ▼135 |  | Tesla | Energy Solutions | | Basic |
| 214 | ▼43 |  | WAP Sustainability | Advisory & Strategy | | Basic |
| 215 | ▲164 |  | WorkforClimate | Training & Culture | | Basic |
| 216 | ▲19 |  | Sustainable Hive | Training & Culture | | Basic |
| 217 | ▼41 |  | MSCI Sustainability Institute | Training & Culture | | Basic |
| 218 | ▲92 |  | Green Frog Connect | Energy Solutions | | Basic |
| 219 | ▲422 |  | instagrid | Energy Solutions | | Basic |
| 220 | ▲161 |  | Zenobe Energy | Energy Solutions | | Basic |
| 221 | ▼126 |  | Cake | Mobility | | Basic |
| 222 | ▼41 |  | Cambridge Enterprise | Finance & Funding | | Basic |
| 223 | ▼95 |  | Carbon Footprint | Carbon Markets & Offsetting | | Basic |
| 224 | ▲160 |  | Climate Perks | Mobility | | Basic |
| 225 | ▼38 |  | Humber Zero | Carbon Markets & Offsetting | | Basic |
| 226 | ▼94 |  | IP Group LC | Finance & Funding | | Basic |
| 227 | ▲92 |  | Nyobolt | Energy Solutions | | Basic |
| 228 | ▲93 |  | Openhydro | Measurement & Reporting | | Basic |
| 229 | ▲93 |  | Phoenix Contact Innovation Ventures | Finance & Funding | | Basic |
| 230 | ▲18 |  | SET Ventures | Finance & Funding | | Basic |
| 231 | ▼133 |  | Social Tech Trust | Finance & Funding | | Basic |
| 232 | ▼98 |  | Sustainable Ventures | Finance & Funding | | Basic |
| 233 | ▼133 |  | Believ | Energy Solutions | | Basic |
| 234 | ▲90 |  | CDP | Certifications & Standards | | Basic |
| 235 | ▼42 |  | Custom Solar | Energy Solutions | | Basic |
| 236 | ▼135 |  | Gold Standard | Carbon Markets & Offsetting | | Basic |
| 237 | ▼101 |  | Invinity Energy Systems | Energy Solutions | | Basic |
| 238 | ▲347 |  | Bluemethane | Carbon Markets & Offsetting | | Basic |
| 239 | ▲436 |  | UK Carbon Registry | Carbon Markets & Offsetting | | Basic |
| 240 | ▼42 |  | Cradle to Cradle Products Innovation Institute | Certifications & Standards | | Basic |
| 241 | ▼42 |  | Earth Hero | Training & Culture | | Basic |
| 242 | ▲179 |  | Global Center on Adaptation | Impact Organisations | | Basic |
| 243 | ▲97 |  | Green Mark | Certifications & Standards | | Basic |
| 244 | ▼191 |  | Humber 2030 Vision | Membership Organisations & Alliances | | Basic |
| 245 | ▲350 |  | INTEC Energy Solutions | Energy Solutions | | Basic |
| 246 | ▼232 |  | Marine Stewardship Council | Impact Organisations | | Basic |
| 247 | ▲100 |  | Net Zero Asset Managers | Membership Organisations & Alliances | | Basic |
| 248 | ▲100 |  | Planet-Tracker | Impact Organisations | | Basic |
| 249 | ▲303 |  | Planetprice | Measurement & Reporting | | Basic |
| 250 | ▲179 |  | Pledge to Net Zero | Membership Organisations & Alliances | | Basic |