---
title: "Business water suppliers in the United Kingdom: Which are searched most?"
description: "Compare the retailers businesses in England and Scotland buy water and wastewater services from. Share of Search among Water Plus, Castle Water, Business Stream, Wave, Everflow, Source for Business and Waterscan, the business water suppliers Brandwave compares in the United Kingdom, using the same methodology, market, and reporting period. 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."
canonical: "https://gobrandwave.com/demand/uk/categories/uk-business-water-suppliers"
publisher: "Brandwave"
---

# Business water suppliers in the United Kingdom: Which are searched most?

Compare the retailers businesses in England and Scotland buy water and wastewater services from. Share of Search among Water Plus, Castle Water, Business Stream, Wave, Everflow, Source for Business and Waterscan, the business water suppliers Brandwave compares in the United Kingdom, using the same methodology, market, and reporting period. 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.

## Key facts

- **Competitive set**: Business water suppliers
- **Market**: United Kingdom
- **Brands compared**: 7
- **Month measured**: Sep 2026
- **Highest Share of Search**: Water Plus, 42.5%

## Which brand is most popular in search among business water suppliers in the United Kingdom?

- In September 2026, Water Plus was the most searched among business water suppliers in the United Kingdom, with an estimated 27.1K branded searches, 42.5% of all searches for the seven we track.
- Castle Water is in 2nd place, 14.1 percentage points behind at 28.4%.
- Across the 12 months ending September 2026, Wave’s share of searches among business water suppliers in the United Kingdom decreased from 5.6% to 4.6%.
- Across the 12 months ending September 2026, Water Plus’ share of searches among business water suppliers in the United Kingdom peaked at 44.1% in November 2025 and was lowest at 40.4% in August 2026.
- Across the 12 months ending September 2026, Castle Water’s share of searches among business water suppliers in the United Kingdom peaked at 29.4% in November 2025 and was lowest at 27% in August 2026.
- Across the 12 months ending September 2026, Business Stream’s share of searches among business water suppliers in the United Kingdom peaked at 22% in August 2026 and was lowest at 16.1% in November 2025.
- Across the 12 months ending September 2026, Wave’s share of searches among business water suppliers in the United Kingdom peaked at 5.9% in November 2025 and was lowest at 4.4% in August 2026.
- Across the 12 months ending September 2026, Everflow rose from 6th to 5th among business water suppliers in the United Kingdom.
- Across the 12 months ending September 2026, Source for Business fell from 5th to 6th among business water suppliers in the United Kingdom.
- Across the 12 months ending September 2026, Water Plus, Castle Water, Business Stream and Waterscan held steady: their share of searches among business water suppliers in the United Kingdom each moved less than 0.5 percentage points.

## Top business water suppliers in ChatGPT and Google AI Overviews

In Brandwave's three ChatGPT questions and two Google AI Overviews, Castle Water was mentioned most often, in three of the five answers. Source for Business was recommended most often, coming first in two out of four answers that gave a list. Everflow was second, and Castle Water was third. Waterscan, which ranked seventh in searches, was not mentioned at all.

Brands get a higher AI rank if they are mentioned earlier in the answers that list options.

| Brand | AI rank | ChatGPT answers that named it | Google AI Overviews that named it | All answers that named it |
| --- | --- | --- | --- | --- |
| Source for Business | 1st | 2 of 3 | 0 of 2 | 2 of 5 |
| Everflow | 2nd | 0 of 3 | 2 of 2 | 2 of 5 |
| Castle Water | 3rd | 1 of 3 | 2 of 2 | 3 of 5 |
| Water Plus | 4th | 1 of 3 | 1 of 2 | 2 of 5 |
| Wave | 4th | 2 of 3 | 0 of 2 | 2 of 5 |
| Business Stream | 6th | 0 of 3 | 2 of 2 | 2 of 5 |
| Waterscan | Not ranked | 0 of 3 | 0 of 2 | 0 of 5 |

## Every AI answer about business water suppliers

- Asked ChatGPT "What's the best business water supplier in the UK?": 1. Source for Business, 2. Wave
- Asked ChatGPT "Can a small business switch water supplier in England, and is it worth it?": named none of the brands we track
- Asked ChatGPT "Which business water retailers have the best customer service?": 1. Source for Business, 2. Wave, 3. Castle Water, 4. Water Plus
- Searched Google, AI Overview "business water suppliers": 1. Water Plus, 2. Everflow, 3. Business Stream, 4. Castle Water
- Searched Google, AI Overview "business water": 1. Everflow, 2. Castle Water, 3. Business Stream

Not named in any answer: Waterscan.

Brands are listed in the order each answer named them. The answers were collected in United Kingdom on October 28, 2026.

## Compare search popularity between leading brands

- [Water Plus vs Castle Water: compare search popularity](/demand/uk/compare/castle-water-vs-water-plus): 42.5% against 28.4% Share of Search.
- [Water Plus vs Business Stream: compare search popularity](/demand/uk/compare/business-stream-vs-water-plus): 42.5% against 19% Share of Search.
- [Water Plus vs Wave: compare search popularity](/demand/uk/compare/water-plus-vs-wave-utilities): 42.5% against 4.6% Share of Search.
- [Water Plus vs Everflow: compare search popularity](/demand/uk/compare/everflow-utilities-vs-water-plus): 42.5% against 2.5% Share of Search.
- [Castle Water vs Business Stream: compare search popularity](/demand/uk/compare/business-stream-vs-castle-water): 28.4% against 19% Share of Search.
- [Castle Water vs Wave: compare search popularity](/demand/uk/compare/castle-water-vs-wave-utilities): 28.4% against 4.6% Share of Search.
- [Castle Water vs Everflow: compare search popularity](/demand/uk/compare/castle-water-vs-everflow-utilities): 28.4% against 2.5% Share of Search.
- [Business Stream vs Wave: compare search popularity](/demand/uk/compare/business-stream-vs-wave-utilities): 19% against 4.6% Share of Search.
- [Business Stream vs Everflow: compare search popularity](/demand/uk/compare/business-stream-vs-everflow-utilities): 19% against 2.5% Share of Search.
- [Wave vs Everflow: compare search popularity](/demand/uk/compare/everflow-utilities-vs-wave-utilities): 4.6% against 2.5% Share of Search.

## How did search popularity change for United Kingdom business water suppliers in September 2026?

- In September 2026, Water Plus gained share of searches among business water suppliers in the United Kingdom, from 40.4% to 42.5%.
- In September 2026, Castle Water gained share of searches among business water suppliers in the United Kingdom, from 27% to 28.4%.
- In September 2026, Business Stream lost share of searches among business water suppliers in the United Kingdom, from 22% to 19%.
- Estimated monthly branded searches for Waterscan in the United Kingdom rose 52.4% over 12 measured months, from 210 to 320 in September 2026.
- Estimated monthly branded searches for Everflow in the United Kingdom rose 23.1% over 12 measured months, from 1.3K to 1.6K in September 2026.
- Estimated monthly branded searches for Wave in the United Kingdom fell 19.4% over 12 measured months, from 3.6K to 2.9K in September 2026.

## Share of Search ranking

| Rank | Brand | Share of Search | Estimated monthly branded searches | Change vs prior month | Owned by |
| --- | --- | --- | --- | --- | --- |
| 1 | Water Plus | 42.5% | 27.1K | +22.1% | Water Plus |
| 2 | Castle Water | 28.4% | 18.1K | +22.3% | Castle Water |
| 3 | Business Stream | 19% | 12.1K | 0.0% | Business Stream |
| 4 | Wave | 4.6% | 2.9K | +20.8% | Wave |
| 5 | Everflow | 2.5% | 1.6K | 0.0% | Everflow Utilities |
| 6 | Source for Business | 2.5% | 1.6K | 0.0% | Source for Business |
| 7 | Waterscan | 0.5% | 320 | +52.4% | Waterscan |

## Historical estimated branded-search demand

| Month | Brand | Estimated monthly branded searches | Share of Search | Rank |
| --- | --- | --- | --- | --- |
| Oct 2025 | Water Plus | 27.1K | 42.3% | 1 |
| Oct 2025 | Castle Water | 18.1K | 28.3% | 2 |
| Oct 2025 | Business Stream | 12.1K | 18.9% | 3 |
| Oct 2025 | Wave | 3.6K | 5.6% | 4 |
| Oct 2025 | Source for Business | 1.6K | 2.5% | 5 |
| Oct 2025 | Everflow | 1.3K | 2% | 6 |
| Oct 2025 | Waterscan | 210 | 0.33% | 7 |
| Nov 2025 | Water Plus | 27.1K | 44.1% | 1 |
| Nov 2025 | Castle Water | 18.1K | 29.4% | 2 |
| Nov 2025 | Business Stream | 9.9K | 16.1% | 3 |
| Nov 2025 | Wave | 3.6K | 5.9% | 4 |
| Nov 2025 | Everflow | 1.3K | 2.1% | 5 |
| Nov 2025 | Source for Business | 1.3K | 2.1% | 6 |
| Nov 2025 | Waterscan | 210 | 0.34% | 7 |
| Dec 2025 | Water Plus | 22.2K | 43.1% | 1 |
| Dec 2025 | Castle Water | 14.8K | 28.8% | 2 |
| Dec 2025 | Business Stream | 9.9K | 19.2% | 3 |
| Dec 2025 | Wave | 2.4K | 4.7% | 4 |
| Dec 2025 | Everflow | 1K | 1.9% | 5 |
| Dec 2025 | Source for Business | 1K | 1.9% | 6 |
| Dec 2025 | Waterscan | 170 | 0.33% | 7 |
| Jan 2026 | Water Plus | 27.1K | 42.3% | 1 |
| Jan 2026 | Castle Water | 18.1K | 28.3% | 2 |
| Jan 2026 | Business Stream | 12.1K | 18.9% | 3 |
| Jan 2026 | Wave | 3.6K | 5.6% | 4 |
| Jan 2026 | Source for Business | 1.6K | 2.5% | 5 |
| Jan 2026 | Everflow | 1.3K | 2% | 6 |
| Jan 2026 | Waterscan | 260 | 0.41% | 7 |
| Feb 2026 | Water Plus | 27.1K | 42.3% | 1 |
| Feb 2026 | Castle Water | 18.1K | 28.3% | 2 |
| Feb 2026 | Business Stream | 12.1K | 18.9% | 3 |
| Feb 2026 | Wave | 3.6K | 5.6% | 4 |
| Feb 2026 | Source for Business | 1.6K | 2.5% | 5 |
| Feb 2026 | Everflow | 1.3K | 2% | 6 |
| Feb 2026 | Waterscan | 260 | 0.41% | 7 |
| Mar 2026 | Water Plus | 33.1K | 42.9% | 1 |
| Mar 2026 | Castle Water | 22.2K | 28.7% | 2 |
| Mar 2026 | Business Stream | 14.8K | 19.2% | 3 |
| Mar 2026 | Wave | 3.6K | 4.7% | 4 |
| Mar 2026 | Everflow | 1.6K | 2.1% | 5 |
| Mar 2026 | Source for Business | 1.6K | 2.1% | 6 |
| Mar 2026 | Waterscan | 320 | 0.41% | 7 |
| Apr 2026 | Water Plus | 27.1K | 42.8% | 1 |
| Apr 2026 | Castle Water | 18.1K | 28.6% | 2 |
| Apr 2026 | Business Stream | 12.1K | 19.1% | 3 |
| Apr 2026 | Wave | 2.9K | 4.6% | 4 |
| Apr 2026 | Source for Business | 1.6K | 2.5% | 5 |
| Apr 2026 | Everflow | 1.3K | 2.1% | 6 |
| Apr 2026 | Waterscan | 210 | 0.33% | 7 |
| May 2026 | Water Plus | 27.1K | 43% | 1 |
| May 2026 | Castle Water | 18.1K | 28.7% | 2 |
| May 2026 | Business Stream | 12.1K | 19.2% | 3 |
| May 2026 | Wave | 2.9K | 4.6% | 4 |
| May 2026 | Everflow | 1.3K | 2.1% | 5 |
| May 2026 | Source for Business | 1.3K | 2.1% | 6 |
| May 2026 | Waterscan | 210 | 0.33% | 7 |
| Jun 2026 | Water Plus | 27.1K | 42.6% | 1 |
| Jun 2026 | Castle Water | 18.1K | 28.4% | 2 |
| Jun 2026 | Business Stream | 12.1K | 19% | 3 |
| Jun 2026 | Wave | 2.9K | 4.6% | 4 |
| Jun 2026 | Everflow | 1.6K | 2.5% | 5 |
| Jun 2026 | Source for Business | 1.6K | 2.5% | 6 |
| Jun 2026 | Waterscan | 260 | 0.41% | 7 |
| Jul 2026 | Water Plus | 27.1K | 42.6% | 1 |
| Jul 2026 | Castle Water | 18.1K | 28.4% | 2 |
| Jul 2026 | Business Stream | 12.1K | 19% | 3 |
| Jul 2026 | Wave | 2.9K | 4.6% | 4 |
| Jul 2026 | Everflow | 1.6K | 2.5% | 5 |
| Jul 2026 | Source for Business | 1.6K | 2.5% | 6 |
| Jul 2026 | Waterscan | 260 | 0.41% | 7 |
| Aug 2026 | Water Plus | 22.2K | 40.4% | 1 |
| Aug 2026 | Castle Water | 14.8K | 27% | 2 |
| Aug 2026 | Business Stream | 12.1K | 22% | 3 |
| Aug 2026 | Wave | 2.4K | 4.4% | 4 |
| Aug 2026 | Everflow | 1.6K | 2.9% | 5 |
| Aug 2026 | Source for Business | 1.6K | 2.9% | 6 |
| Aug 2026 | Waterscan | 210 | 0.38% | 7 |
| Sep 2026 | Water Plus | 27.1K | 42.5% | 1 |
| Sep 2026 | Castle Water | 18.1K | 28.4% | 2 |
| Sep 2026 | Business Stream | 12.1K | 19% | 3 |
| Sep 2026 | Wave | 2.9K | 4.6% | 4 |
| Sep 2026 | Everflow | 1.6K | 2.5% | 5 |
| Sep 2026 | Source for Business | 1.6K | 2.5% | 6 |
| Sep 2026 | Waterscan | 320 | 0.5% | 7 |

## What is being compared

- **Business Stream**: Measured on the search term “business stream”.
- **Castle Water**: Measured on the search term “castle water”.
- **Everflow**: Measured on the search term “everflow water”.
- **Source for Business**: Measured on the search term “source for business”.
- **Water Plus**: Measured on the search term “water plus”.
- **Waterscan**: Measured on the search term “waterscan”.
- **Wave**: Measured on the search term “wave utilities”.

- [Business Stream](/demand/uk/brands/business-stream)
- [Castle Water](/demand/uk/brands/castle-water)
- [Everflow](/demand/uk/brands/everflow-utilities)
- [Source for Business](/demand/uk/brands/source-for-business)
- [Water Plus](/demand/uk/brands/water-plus)
- [Waterscan](/demand/uk/brands/waterscan)
- [Wave](/demand/uk/brands/wave-utilities)

## Methodology

- [How is the Brand Demand Index measured?](/demand/methodology): Where the figures come from, what they compare, and how they may be reused.

## Frequently asked questions

### Which brand is most popular in search among business water suppliers in the United Kingdom?

In September 2026, Water Plus was the most searched among business water suppliers in the United Kingdom, with an estimated 27.1K branded searches, 42.5% of all searches for the seven we track.

## Cite this page

Brandwave. "Business water suppliers in the United Kingdom: Which are searched most?". https://gobrandwave.com/demand/uk/categories/uk-business-water-suppliers

This page is also available as HTML at https://gobrandwave.com/demand/uk/categories/uk-business-water-suppliers. Brandwave publishes an index of its Markdown pages at https://gobrandwave.com/llms.txt.