Every month, YouGov identifies the brands generating the strongest surge in Word of Mouth scores in the UK.

Using data from YouGov BrandIndex, our daily brand tracking solution, we measure Word of Mouth, the percentage of people who say they have talked about a brand with friends or family in the past two weeks - whether in a positive, neutral, or negative capacity. The brands featured here recorded the largest increase in Word of Mouth in the latest month compared to the previous month. These scores are attributed to positive and negative conversations about the brands.

Word of Mouth Marketing: Brands with the strongest growth in July 2026

  1. WhatsApp – 6.8 percentage-point increase (from 24.0% in June 2026 to 30.8% in July 2026)
  2. Halifax – 4.3 percentage-point increase (from 5.0% in June 2026 to 9.3% in July 2026)
  3. Diet Coke – 3.7 percentage-point increase (from 8.2% in June 2026 to 11.9% in July 2026)
  4. Nando’s PERi-PERi sauce – 3.5 percentage-point increase (from 3.6% in June 2026 to 7.1% in July 2026)
  5. Tesco Clubcard – 3.0 percentage-point increase (from 18.1% in June 2026 to 21.1% in July 2026)
  6. Pimm's – 2.9 percentage-point increase (from 7.3% in June 2026 to 10.2% in July 2026)
  7. Sony – 2.9 percentage-point increase (from 4.6% in June 2026 to 7.5% in July 2026)
  8. The Range – 2.6 percentage-point increase (from 9.3% in June 2026 to 11.9% in July 2026)
  9. Kinder Surprise – 2.6 percentage-point increase (from 1.6% in June 2026 to 4.2% in July 2026)
  10. Ninja – 2.5 percentage-point increase (from 12.4% in June 2026 to 14.9% in July 2026)
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WhatsApp gains during a period of product updates

WhatsApp’s Word of Mouth Exposure rose 6.8 points, from 24.0% to 30.8%. A series of updates, including usernames and improved iPad, CarPlay and multi-device access, may have driven conversation around the platform. Coverage of security threats may also have contributed some discussion.

Halifax draws attention amid phase-out plans

Halifax’s score increased 4.3 points, from 5.0% to 9.3%. Plans to phase out the 173-year-old Halifax name generated significant coverage, alongside branch closures and account changes. The prospect of the familiar brand disappearing may have sparked customer discussion and nostalgia.

Nando’s sauce boosted by football tie-in

Nando’s PERi-PERi sauce rose 3.5 points, from 3.6% to 7.1%. Continued promotion of PERi-PERi Saka, its Bukayo Saka collaboration, may have kept the brand prominent in consumer discussion as the FIFA World Cup was top of mind for many.

Tesco Clubcard generates talk amid giveaways

Tesco Clubcard’s score rose 3.0 points, from 18.1% to 21.1%. Tesco’s “Freebie Thursdays” offered free products through the Clubcard app, including five million pizzas. The weekly giveaways and Wimbledon-linked offers may have helped boost engagement and conversation.

Word of Mouth Marketing: Brands with the strongest growth in June 2026

  1. Hawkstone – 5.7 percentage-point increase (from 4.1% in May to 9.8% in June)
  2. Nationwide – 4.9 percentage-point increase (from 12.1% in May to 17.0% in June)
  3. BBC One – 4.8 percentage-point increase (from 8.2% in May to 13.0% in June)
  4. Amazon – 4.7 percentage-point increase (from 25.3% in May to 30.0% in June)
  5. Currys – 4.5 percentage-point increase (from 8.0% in May to 12.5% in June)
  6. adidas – 3.9 percentage-point increase (from 10.8% in May to 14.7% in June)
  7. Lidl – 3.8 percentage-point increase (from 19.1% in May to 22.9% in June)
  8. iPhone – 3.5 percentage-point increase (from 14.9% in May to 18.4% in June)
  9. Crocs – 3.5 percentage-point increase (from 7.0% in May to 10.5% in June)
  10. Instagram – 3.3 percentage-point increase (from 19.2% in May to 22.5% in June)
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Word of Mouth Marketing: Brands with the strongest growth in May 2026

  1. Swatch – 3.9 percentage-point increase (from 1.5% in April to 5.4% in May)
  2. Aperol – 3.2 percentage-point increase (from 7.6% in April to 10.8% in May)
  3. Branston Beans – 3.1 percentage-point increase (from 3.4% in April to 6.5% in May)
  4. BBC iPlayer – 2.8 percentage-point increase (from 17.5% in April to 20.3% in May)
  5. NOW TV – 2.6 percentage-point increase (from 3.8% in April to 6.4% in May)
  6. Pimm's – 2.4 percentage-point increase (from 3.3% in April to 5.7% in May)
  7. Superdry – 2.4 percentage-point increase (from 2.4% in April to 4.8% in May)
  8. Jet2holidays – 2.3 percentage-point increase (from 13.2% in April to 15.5% in May)
  9. Skechers – 2.3 percentage-point increase (from 10.6% in April to 12.9% in May)
  10. Oral-B – 2.3 percentage-point increase (from 4.5% in April to 6.8% in May)
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Methodology:

YouGov BrandIndex collects data on thousands of brands every day. Word of Mouth score is based on the question: “Which of the following brands have you talked about with friends or family in the past two weeks?"

Rankings in this article are based on change in Word of Mouth scores. To qualify as top improvers, a minimum base size of 300 (n) is required. In cases where the change in scores is the same between two brands, the current scores are used as a secondary metric to determine their ranking.

Brands tracked across multiple sectors are ranked based on their highest-performing sector. Both parent and child brands, such as Google and YouTube, are included to allow for greater granularity in performance tracking.

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The data analysis in this article was created with the assistance of AI.

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