United Kingdom · Pollster ratings
Every pollster we track, scored for reliability.
Each score sets how much weight that pollster's polls carry in the UK average. Scores are bounded between 0.30 and 0.70 by construction; today they run from 0.42 to 0.57, so the most trusted pollster carries 1.4 times the weight of the least. Recency and sample size matter more than the score.
Updated 7 Oct 2026/28 pollsters/How the score is built
| Pollster | Score | Polls | Avg sample | British Polling Council | Latest poll |
|---|---|---|---|---|---|
| Techne | 0.57 | 167 | 1,658 | Yes | 15 May |
| More in Common | 0.57 | 146 | 2,971 | Yes | 5 Oct |
| JL Partners | 0.57 | 29 | 2,861 | Yes | 11 Aug |
| Survation | 0.57 | 117 | 3,260 | Yes | 5 Oct |
| BMG Research | 0.56 | 56 | 1,544 | Yes | 24 Sep |
| YouGov | 0.56 | 335 | 2,754 | Yes | 5 Oct |
| Deltapoll | 0.55 | 132 | 1,606 | Yes | 14 Sep |
| Ipsos | 0.55 | 55 | 1,434 | Yes | 15 Sep |
| Opinium | 0.55 | 199 | 1,907 | Yes | 2 Oct |
| Focaldata | 0.55 | 27 | 7,311 | Yes | 10 Mar |
| Savanta | 0.54 | 181 | 2,264 | Yes | 3 Jul 2024 |
| Verian | 0.52 | 9 | 1,362 | Yes | 23 Mar |
| Redfield & Wilton | 0.52 | 237 | 2,266 | Yes | 2 Jul 2024 |
| Find Out Now | 0.52 | 113 | 4,039 | Yes | 30 Sep |
| We Think | 0.52 | 51 | 1,595 | Yes | 8 Aug 2024 |
| Whitestone Insight | 0.51 | 9 | 3,295 | Yes | 23 Jan 2025 |
| Norstat | 0.51 | 5 | 1,848 | Yes | 3 Jul 2024 |
| Lord Ashcroft | 0.50 | 32 | 5,069 | No | 28 Sep |
| Freshwater Strategy | 0.49 | 21 | 1,262 | Yes | 6 Sep |
| Good Growth Foundation | 0.49 | 3 | 2,000 | Yes | 7 Jun |
| Stack Data Strategy | 0.47 | 1 | 9,301 | Yes | 3 Aug 2025 |
| Omnisis | 0.47 | 61 | 1,235 | Yes | 18 Aug 2023 |
| PeoplePolling | 0.46 | 44 | 1,346 | No | 2 Jul 2024 |
| Number Cruncher Politics | 0.45 | 12 | 1,427 | No | 3 Jul 2024 |
| Kantar Public | 0.44 | 35 | 1,112 | No | 4 Sep 2023 |
| Panelbase | 0.43 | 4 | 3,055 | No | 19 Nov 2021 |
| Labour Together | 0.42 | 2 | 5,337 | No | 29 Apr 2024 |
| Stonehaven | 0.42 | 2 | 2,060 | No | 9 Dec 2024 |
How the score is built
Four inputs, combined with fixed weights: accuracy against election results, with the penalty reduced when the whole industry missed together (40%); whether the pollster's movements track the underlying trend or are idiosyncratic noise (20%); methodological trust, meaning transparency, track-record depth, sample quality and recency of activity (25%); and the size and stability of the pollster's house effect (15%). Each input is shrunk toward an informed prior before they are combined. The full method, with the formulas, is on the methodology page.
What the score does and does not do
No pollster is ever excluded from the average, because the floor is 0.30, and no pollster can dominate it, because the ceiling is 0.70. A new pollster without enough history starts at 0.40; a dormant one counts at 0.30. House effects are measured and reported for transparency, but the average does not adjust for them. These scores are used by the UK average and by nothing else.