Company lists · Data refreshed September 2026

Top 25 Water utilities based in South Africa

Name: Water utilities based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 86 companies tracked

RevenueBase identified 86 water utilities headquartered in South Africa as of September 2026 and tracks 8,074 professional contacts across them, including 2,176 with verified work emails. Johannesburg is the largest hub.

This list covers water utilities headquartered in South Africa, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

86Companies

8,074Contacts tracked

2,176Verified emails

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The 25 largest water utilities based in South Africa

Ranked by team size

Top 25 of 86 water utilities based in South Africa, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to water utilities: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Rand Water	Partial evidence	Glenvista, South AfricaHQ checked Sep 16, 2026	1,001-5,000	2,978 contacts →
	Partial evidence “VISION: Be a provider of sustainable, universally competitive water and sanitation solutions for Africa.” Source: RevenueBase Database · checked Sep 16, 2026
2	Umngeni-Uthukela Water	Partial evidence	Pietermaritzburg, South AfricaHQ checked Sep 16, 2026	1,001-5,000	1,008 contacts →
	Partial evidence “Global Leader in the sustainable provision of water and related services.” Source: RevenueBase Database · checked Sep 16, 2026
3	Proxa Water	Partial evidence	Woodmead, South AfricaHQ checked Sep 16, 2026	201-500	358 contacts →
	Partial evidence “Proxa is a leading water treatment specialist whose integrated services cover the entire water cycle and span numerous global industries, including: mining, food & beverage…” Source: RevenueBase Database · checked Sep 16, 2026
4	ERWAT	Partial evidence	Kempton Park, South AfricaHQ checked Sep 16, 2026	501-1,000	270 contacts →
	Partial evidence “ERWAT provides sustainable, affordable, quality water care and resource recovery services through partnerships and collaborative initiatives with external role players, utilising…” Source: RevenueBase Database · checked Sep 16, 2026
5	Nafasi Water	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	201-500	175 contacts →
	Partial evidence “Nafasi Water, formerly known as Aveng Water is a 100% black-owned leading water technology and water utility service company.” Source: RevenueBase Database · checked Sep 16, 2026
6	Watercare Innovations	Partial evidence	Randfontein, South AfricaHQ checked Sep 16, 2026	201-500	165 contacts →
	Partial evidence “Watercare Innovations is a water purification supplier, delivering tailor-made solutions in the fields of water treatment chemicals, and engineered plants such as potable and…” Source: RevenueBase Database · checked Sep 16, 2026
7	Magalies Water	Partial evidence	Rustenburg, South AfricaHQ checked Sep 16, 2026	201-500	153 contacts →
	Partial evidence “Magalies Water is a Water Board established in terms of section 29 of the Water Services Act,(Act No 108 of 1997) and Public Entity as per Schedule 3B of the Public Finance…” Source: RevenueBase Database · checked Sep 16, 2026
8	Tecroveer	Partial evidence	Westonaria, South AfricaHQ checked Sep 16, 2026	201-500	86 contacts →
	Partial evidence “Tecroveer Holdings: Revolutionising Water Treatment Since 1976 Mission: We Clean Water.” Source: RevenueBase Database · checked Sep 16, 2026
9	Watericon	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	51-200	51 contacts →
	Partial evidence “As the start and end-point for every aspect of water purity and preservation in Africa, our customers, the environment, and preserving nature‘s most precious resource are at the…” Source: RevenueBase Database · checked Sep 16, 2026
10	Silulumanzi	Partial evidence	Mbombela, South AfricaHQ checked Sep 16, 2026	201-500	48 contacts →
	Partial evidence “Silulumanzi has a 30-year concession contract with the City of Mbombela Local Municipality for rendering of water and wastewater services for approximately people.” Source: RevenueBase Database · checked Sep 16, 2026
11	Siza Water RF PTY LTD	Partial evidence	Ballito, South AfricaHQ checked Sep 16, 2026	51-200	42 contacts →
	Partial evidence “Siza Water (RF)(Pty) Ltd is the water service provider of the Dolphin Coast in KwaZulu Natal, South Africa.” Source: RevenueBase Database · checked Sep 16, 2026
12	GLS Consulting PTY LTD	Partial evidence	Stellenbosch, South AfricaHQ checked Sep 16, 2026	11-50	38 contacts →
	Partial evidence “GLS Consulting (Pty) Ltd offers consulting services and software products in the fields of water, sewer, stormwater and electricity systems.” Source: RevenueBase Database · checked Sep 16, 2026
13	WRP Consulting Engineers	Indirect evidence	Groenkloof, South AfricaHQ checked Sep 16, 2026	11-50	37 contacts →
	Indirect evidence “WRP is a proudly level 2 BB-BEE specialist engineering consultancy founded and cultivated in South Africa.” Source: RevenueBase Database · checked Sep 16, 2026
14	Alveo Water PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	51-200	36 contacts →
	Partial evidence “We specialise in the design, manufacturing, installation, and operation of advanced water and wastewater treatment plants.” Source: RevenueBase Database · checked Sep 16, 2026
15	Voltano Metering PTY LTD	Partial evidence	Centurion, South AfricaHQ checked Sep 16, 2026	51-200	26 contacts →
	Partial evidence “Voltano Metering is an innovative and forward-thinking utilities service provider in Southern Africa.” Source: RevenueBase Database · checked Sep 16, 2026
16	Power Measurement And Distribution PTY LTD	Partial evidence	George George, South AfricaHQ checked Sep 16, 2026	51-200	25 contacts →
	Partial evidence “Established in 1996, we offer a number of different pre-paid and conventional utility management solutions for electricity, water and gas consumption.” Source: RevenueBase Database · checked Sep 16, 2026
17	Water And Sanitation Services South Africa Proprietary Limited	Indirect evidence	Sandton, South AfricaHQ checked Sep 16, 2026	1-10	23 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
18	Africa Utility Solutions	Indirect evidence	Parkwood, South AfricaHQ checked Sep 16, 2026	11-50	22 contacts →
	Indirect evidence “Africa Utility Solutions (AUS) is a 100% female owned, Level 1 Black Economic Empowerment (BEE), company that offers innovative solution driven products and expertise in utility…” Source: RevenueBase Database · checked Sep 16, 2026
19	Prosep PTY LTD	Partial evidence	Boksburg, South AfricaHQ checked Sep 16, 2026	51-200	18 contacts →
	Partial evidence “Welcome to Prosep, a premier leader in the water treatment industry with over 20 years of experience.” Source: RevenueBase Database · checked Sep 16, 2026
20	Hall Core Water	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	1-10	13 contacts →
	Indirect evidence “RESPONSIBLE.” Source: RevenueBase Database · checked Sep 16, 2026
21	Zana Manzi Services	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	501-1,000	12 contacts →
	Partial evidence “Zana Manzi Services specialises in the management, construction, refurbishment, operation and maintenance of water and wastewater systems.” Source: RevenueBase Database · checked Sep 16, 2026
22	Makoya Utility Services MUS	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	11 contacts →
	Partial evidence “Makoya Utility Services Meter reading services on conventional meters for a large number of national property owners Smart Metering for public utilities’ Large Power Users (LPU’s)…” Source: RevenueBase Database · checked Sep 16, 2026
23	Telos Water	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	1-10	9 contacts →
	Partial evidence “Telos Water comprises of a team of highly experienced engineers and project managers providing water management solutions to the mining, industrial and municipal sectors.” Source: RevenueBase Database · checked Sep 16, 2026
24	Clarity	Partial evidence	Pretoria, South AfricaHQ checked Sep 16, 2026	11-50	9 contacts →
	Partial evidence “Clarity Installations (Pty) Ltd is a proudly South African leader in water engineering, delivering innovative and sustainable water and wastewater solutions since 2010.” Source: RevenueBase Database · checked Sep 16, 2026
25	HWT	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	5 contacts →
	Partial evidence “Our primary focus is the design, construction and operation of various treatment plants including; Sewage treatment Potable water treatment Wine cellar effluent treatment…” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: water utilities. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names water utilities.
Partial evidence: Its own public description names part of water utilities, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water utilities. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 86 water utilities based in South Africa

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Water utilities based in South Africa at a glance

As of Sep 16, 2026

27.0%Verified-email coverage

93.9Average contacts per company

11-50Median size (employees)

15.1%Largest-city concentration · Johannesburg

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for South Africa, so it is reported there. Company counts and contact totals on this page are exact for South Africa, over 86 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among water utilities, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in South Africa whose own description of what they do matches “water utilities”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names water utilities), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among water utilities, and records with no verified work email. Companies headquartered outside South Africa are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 2,176 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names water utilities, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many water utilities are there based in South Africa?

RevenueBase identified 86 water utilities headquartered in South Africa as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Rand Water, headquartered in Johannesburg, tops this list with the largest team on record.

Which city has the most water utilities?

Johannesburg leads with 13 headquartered companies, followed by Cape Town (10) and Pretoria (9).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,176 verified decision-maker contacts tracked across these 86 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.