BWT vs Culligan:Which is more popular by branded search?
In August 2026, BWT had more branded searches than Culligan among water softeners worldwide. BWT was estimated to have 90.5K branded searches compared to Culligan’s 74K, and held a 30.1% Share of Search versus Culligan’s 24.6%. These are worldwide searches for English-language branded terms.
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Which is more popular in search, BWT or Culligan?
Compare the water softeners people search for. Branded searches tell you how often people look for a brand by name or related terms. Comparing these searches across competitors helps you see how popular each brand is over time.
Share of Search by month for BWT, Culligan. The figures are in the table below the chart.
View monthly share of search table
| Month | Harvey | BWT | Culligan | EcoWater | WaterBoss | Kinetico |
|---|---|---|---|---|---|---|
| Oct 2025 | 25.7% | 38.1% | 25.7% | 9.4% | 0.83% | 0.31% |
| Nov 2025 | 23.1% | 42.1% | 23.1% | 10.4% | 0.92% | 0.38% |
| Dec 2025 | 25.5% | 38.2% | 25.5% | 9.4% | 1% | 0.42% |
| Jan 2026 | 22% | 40% | 26.9% | 9.9% | 0.87% | 0.36% |
| Feb 2026 | 33.3% | 33.3% | 22.2% | 10% | 0.88% | 0.37% |
| Mar 2026 | 33.9% | 33.9% | 22.8% | 8.3% | 0.74% | 0.4% |
| Apr 2026 | 36% | 29.6% | 24.2% | 8.9% | 0.95% | 0.43% |
| May 2026 | 32.7% | 40.2% | 18% | 8.1% | 0.71% | 0.3% |
| Jun 2026 | 35.9% | 35.9% | 19.7% | 7.2% | 0.78% | 0.42% |
| Jul 2026 | 36.6% | 30.1% | 24.6% | 7.4% | 0.96% | 0.43% |
| Aug 2026 | 36.6% | 30.1% | 24.6% | 7.4% | 0.96% | 0.33% |
| Sep 2026 | — | — | — | — | — | — |
How has the BWT and Culligan comparison changed over the last 12 months?
3 findings
- BWT was ahead of Culligan in every measured month of the 11 months ending August 2026.
- Across the 11 months ending August 2026, BWT’s estimated Share of Search among water softeners worldwide moved from 38.1% to 30.1%, and its estimated monthly branded searches moved from 110K to 90.5K.
- Across the 11 months ending August 2026, Culligan’s estimated Share of Search among water softeners worldwide moved from 25.7% to 24.6%, and its estimated monthly branded searches held steady at 74K.
How did search popularity change for water softeners worldwide in August 2026?
2 changes
Culligan’s estimated Share of Search among water softeners worldwide has gained ground for 3 months in a row, from 18% to 24.6% in August 2026.
Estimated monthly branded searches for BWT worldwide fell 17.7% over 11 measured months, from 110K to 90.5K in August 2026.
How each brand is measured
Brandwave collects information about searches that people make online using BWT’s and Culligan’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
Put your own brand in this comparison
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