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

Name: Business water suppliers in the United Kingdom: Which are searched most?
Creator: Brandwave
License: https://creativecommons.org/licenses/by/4.0/

In September 2026, Water Plus was the most searched business water supplier in the United Kingdom, accounting for 42.5% of all searches among the seven suppliers we track. When we checked with ChatGPT and 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 responses that gave a list.

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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.

Most recommended by AI

Brands get a higher ranking if they are mentioned earlier in the answers.

Mentioned by AI

Each dot is one answer, filled in when that answer mentions the brand.

How many AI answers named each brand
Brand	ChatGPT	Google	Answers that named it
Castle Water	Named in 1 of 3 ChatGPT answers	Named in 2 of 2 Google AI Overviews	3 of 5
Water Plus	Named in 1 of 3 ChatGPT answers	Named in 1 of 2 Google AI Overviews	2 of 5
Business Stream	Named in 0 of 3 ChatGPT answers	Named in 2 of 2 Google AI Overviews	2 of 5
Wave	Named in 2 of 3 ChatGPT answers	Named in 0 of 2 Google AI Overviews	2 of 5
Everflow	Named in 0 of 3 ChatGPT answers	Named in 2 of 2 Google AI Overviews	2 of 5
Source for Business	Named in 2 of 3 ChatGPT answers	Named in 0 of 2 Google AI Overviews	2 of 5
Waterscan	Named in 0 of 3 ChatGPT answers	Named in 0 of 2 Google AI Overviews	0 of 5

Castle Water3 of 5Named in 1 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Water Plus2 of 5Named in 1 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Business Stream2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Wave2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Everflow2 of 5Named in 0 of 3 ChatGPT answersNamed in 2 of 2 Google answers
Source for Business2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Waterscan0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers

See every answer about business water suppliers

5 answers

Asked ChatGPT
“What's the best business water supplier in the UK?”
1. 1Source for Business
2. 2Wave
Asked ChatGPT
“Can a small business switch water supplier in England, and is it worth it?”
Asked ChatGPT
“Which business water retailers have the best customer service?”
Searched Google, AI Overview
“business water suppliers”
Searched Google, AI Overview
“business water”

Not named in any answer:

Waterscan

Brands are shown in the order each answer named them. The survey took place in United Kingdom on October 28, 2026.

Which business water suppliers do people search for most?

This chart shows how often people search Google for each business water supplier by name. Each line represents a brand's share of searches for all seven business water suppliers we track, month by month, from searches in United Kingdom.

Share of searches among business water suppliers in the United Kingdom, by month

Month	Water Plus	Castle Water	Business Stream	Wave	Everflow	Source for Business	Waterscan
Oct 2025	42.3%	28.3%	18.9%	5.6%	2%	2.5%	0.33%
Nov 2025	44.1%	29.4%	16.1%	5.9%	2.1%	2.1%	0.34%
Dec 2025	43.1%	28.8%	19.2%	4.7%	1.9%	1.9%	0.33%
Jan 2026	42.3%	28.3%	18.9%	5.6%	2%	2.5%	0.41%
Feb 2026	42.3%	28.3%	18.9%	5.6%	2%	2.5%	0.41%
Mar 2026	42.9%	28.7%	19.2%	4.7%	2.1%	2.1%	0.41%
Apr 2026	42.8%	28.6%	19.1%	4.6%	2.1%	2.5%	0.33%
May 2026	43%	28.7%	19.2%	4.6%	2.1%	2.1%	0.33%
Jun 2026	42.6%	28.4%	19%	4.6%	2.5%	2.5%	0.41%
Jul 2026	42.6%	28.4%	19%	4.6%	2.5%	2.5%	0.41%
Aug 2026	40.4%	27%	22%	4.4%	2.9%	2.9%	0.38%
Sep 2026	42.5%	28.4%	19%	4.6%	2.5%	2.5%	0.5%

Rank	Brand	Share of searches	Estimated monthly branded searches	vs prior month	Share change
1, held 1st	Water Plus	42.5%	27.1K	+22.1%	+2.1 points
2, held 2nd	Castle Water	28.4%	18.1K	+22.3%	+1.5 points
3, held 3rd	Business Stream	19%	12.1K	0%	-3 points
4, held 4th	Wave	4.6%	2.9K	+20.8%	+0.2 points
5, held 5th	Everflow	2.5%	1.6K	0%	-0.4 points
6, held 6th	Source for Business	2.5%	1.6K	0%	-0.4 points
7, held 7th	Waterscan	0.5%	320	+52.4%	+0.1 points

1.Water Plus
42.5%
Held 1st. 27.1K estimated branded searches, +22.1% vs prior month. Share +2.1 points.
2.Castle Water
28.4%
Held 2nd. 18.1K estimated branded searches, +22.3% vs prior month. Share +1.5 points.
3.Business Stream
19%
Held 3rd. 12.1K estimated branded searches, 0% vs prior month. Share -3 points.
4.Wave
4.6%
Held 4th. 2.9K estimated branded searches, +20.8% vs prior month. Share +0.2 points.
5.Everflow
2.5%
Held 5th. 1.6K estimated branded searches, 0% vs prior month. Share -0.4 points.
6.Source for Business
2.5%
Held 6th. 1.6K estimated branded searches, 0% vs prior month. Share -0.4 points.
7.Waterscan
0.5%
Held 7th. 320 estimated branded searches, +52.4% vs prior month. Share +0.1 points.

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

7 brands

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%.

United Kingdom business water suppliers, last 12 months ending September 2026
Brand	Share of searches	Peak	Low	Rank
Water Plus	42.3% → 42.5%	44.1%Nov 2025	40.4%Aug 2026	1st
Castle Water	28.3% → 28.4%	29.4%Nov 2025	27%Aug 2026	2nd
Business Stream	18.9% → 19%	22%Aug 2026	16.1%Nov 2025	3rd
Wave	5.6% → 4.6%	5.9%Nov 2025	4.4%Aug 2026	4th
Everflow	2% → 2.5%	2.9%Aug 2026	1.9%Dec 2025	6th → 5th
Source for Business	2.5%	2.9%Aug 2026	1.9%Dec 2025	5th → 6th
Waterscan	0.33% → 0.5%	0.5%Sep 2026	0.33%Oct 2025	7th

Each finding as a sentence

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.

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

6 changes

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.

How are branded searches counted for business water suppliers?

7 search terms

Each brand's share of searches among business water suppliers comes from the terms listed under its name. When people mostly search for a brand because of something else it sells, only the searches that name this product count here.