Top 50 Energies in United Kingdom
This curated ranking covers the 50 largest energies in United Kingdom, ordered by estimated audience size from Rascasse's anonymized search-behavior signals. Out of 95 energies tracked in United Kingdom, the 50 ranked here account for the largest measured audience reach. Octupus Energy, Octopus Energy and British Gas lead the list with a combined estimated audience of 37,699,895 people. Across all 50 entries the average audience size is 976,062, and the largest, Octupus Energy, reaches around 13,833,760 people in United Kingdom. Audience size is the estimated number of unique people in United Kingdom who actively engage with each energy, derived from search demand signals. Rankings reflect search-behavior signals collected across United Kingdom and are refreshed weekly.
Ranking
| Rank | Name | Audience size | Country share | Subtype | Category |
|---|---|---|---|---|---|
| 1 |  Octupus Energy |
13,833,760 | 65.3% | Energy | Business & Career |
| 2 |  Octopus Energy |
13,352,880 | 73.8% | Energy | Home & Garden |
| 3 |  British Gas |
10,513,255 | 97.3% | Energy | Home & Garden |
| 4 |  Ovo Energy |
4,278,715 | 88.8% | Energy | Home & Garden |
| 5 |  EDF Energy |
1,665,213 | 82.3% | Energy | Home & Garden |
| 6 |  E.ON |
1,538,549 | 13.4% | Energy | Home & Garden |
| 7 |  OVO |
549,108 | 10.8% | Energy | Home & Garden |
| 8 |  Duracell |
303,520 | 9.7% | Energy | Home & Garden |
| 9 |  CityFibre |
277,763 | 93.4% | Energy | Home & Garden |
| 10 |  SSE plc |
271,874 | 79.5% | Energy | Home & Garden |
| 11 |  Ecotricity |
256,281 | 94.5% | Energy | Home & Garden |
| 12 |  UK Power Networks |
249,775 | 95.9% | Energy | Home & Garden |
| 13 |  Centrica |
193,690 | 63.1% | Energy | Home & Garden |
| 14 | Good Energy |
164,068 | 50.0% | Energy | Home & Garden |
| 15 |  Chevron Corporation |
146,354 | 0.8% | Energy | Home & Garden |
| 16 |  Ørsted |
143,856 | 12.0% | Energy | Home & Garden |
| 17 |  Engie |
136,985 | 0.5% | Energy | Home & Garden |
| 18 |  Equinor |
102,251 | 11.1% | Energy | Home & Garden |
| 19 |  Energizer |
101,185 | 5.7% | Energy | Home & Garden |
| 20 |  RWE |
81,916 | 3.5% | Energy | Home & Garden |
| 21 |  Gazprom |
74,159 | 5.2% | Energy | Home & Garden |
| 22 |  Iberdrola |
73,745 | 1.1% | Energy | Home & Garden |
| 23 |  E.ON UK |
69,594 | 79.9% | Energy | Home & Garden |
| 24 |  NRG Energy |
60,233 | 5.9% | Energy | Home & Garden |
| 25 |  Enel |
45,006 | 0.2% | Energy | Home & Garden |
| 26 |  Vattenfall |
41,934 | 0.6% | Energy | Home & Garden |
| 27 |  Uniper |
33,907 | 7.1% | Energy | Home & Garden |
| 28 |  A2A |
26,114 | 0.9% | Energy | Home & Garden |
| 29 |  Eneco |
25,169 | 0.7% | Energy | Home & Garden |
| 30 |  EnerGas |
24,992 | 2.1% | Energy | Home & Garden |
| 31 |  SWB |
16,170 | 2.7% | Energy | Home & Garden |
| 32 |  Statkraft |
14,096 | 6.5% | Energy | Home & Garden |
| 33 |  Direct Energy |
13,879 | 1.1% | Energy | Home & Garden |
| 34 |  EnBW |
13,456 | 0.9% | Energy | Home & Garden |
| 35 |  Enedis |
11,451 | 0.2% | Energy | Home & Garden |
| 36 |  Xcel Energy |
10,111 | 0.3% | Energy | Home & Garden |
| 37 |  Gewiss |
9,983 | 2.3% | Energy | Home & Garden |
| 38 |  Origin Energy |
9,543 | 0.5% | Energy | Home & Garden |
| 39 |  AGL Energy |
8,347 | 1.4% | Energy | Home & Garden |
| 40 |  GDF Suez |
7,614 | 0.5% | Energy | Home & Garden |
| 41 |  Eni Plenitude |
7,340 | 0.1% | Energy | Home & Garden |
| 42 |  Terna |
6,748 | 0.8% | Energy | Home & Garden |
| 43 |  EnergyAustralia |
6,104 | 0.4% | Energy | Home & Garden |
| 44 |  RWE npower |
6,008 | 62.3% | Energy | Home & Garden |
| 45 |  Enel X |
5,276 | 1.3% | Energy | Home & Garden |
| 46 |  Repower |
4,735 | 1.7% | Energy | Home & Garden |
| 47 |  Solarlux |
4,430 | 3.8% | Energy | Home & Garden |
| 48 |  Ambit Energy |
4,046 | 0.6% | Energy | Home & Garden |
| 49 |  Energiekontor |
3,991 | 3.9% | Energy | Home & Garden |
| 50 |  Estra |
3,934 | 0.5% | Energy | Home & Garden |
Frequently asked questions
How is this Top 50 list compiled?
Rascasse aggregates anonymized search-behavior signals across United Kingdom and ranks each energy by its estimated audience size. Only entries with at least 5 measured entities are listed.
How often is the list updated?
The ranking is refreshed weekly from the latest search-behavior data and re-published as a static page.
What is the largest energy in United Kingdom?
Octupus Energy currently leads with an estimated audience of 13,833,760 people in United Kingdom.
Methodology
Audience sizes are estimated from anonymized search-behavior signals across United Kingdom. Lists below 5 entries are not published. See methodology for full details.