Company lists · Data refreshed October 2026

Top 8 Industrial water treatment installers based in Johannesburg, South Africa

RevenueBase identified 25 company matches for industrial water treatment installers associated with Johannesburg, South Africa as of October 2026 and tracks 545 professional contacts across them, including 129 with verified work emails. Across South Africa, Johannesburg is the largest hub for this category.

This list covers company matches for industrial water treatment installers associated with Johannesburg, South Africa, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 16, 2026 How this list was built
25Companies
545Contacts tracked
129Verified emails
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The 8 largest industrial water treatment installers based in Johannesburg, South Africa

Ranked by team size
Top 8 of 25 company matches for industrial water treatment installers based in Johannesburg, South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 16, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchJohannesburg, South AfricaHQ recorded Oct 16, 2026201-500185 contacts →

Exact match

“Nafasi Water, formerly known as Aveng Water is a 100% black-owned leading water technology and water utility service company.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
2Exact matchJohannesburg, South AfricaHQ recorded Oct 16, 202651-20048 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
3Exact matchJohannesburg, South AfricaHQ recorded Oct 16, 202611-5031 contacts →

Exact match

“Aquamat, established in 1968 active in 33 African Countries.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
4Exact matchJohannesburg, South AfricaHQ recorded Oct 16, 20261-109 contacts →

Exact match

“Telos Water comprises of a team of highly experienced engineers and project managers providing water management solutions to the mining, industrial and municipal sectors.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
5Exact matchJohannesburg, South AfricaHQ recorded Oct 16, 202611-509 contacts →

Exact match

“Superior Filtration is an original equipment manufacturer in the field of industrial and municipal water filtration.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
6Exact matchJohannesburg, South AfricaHQ recorded Oct 16, 202611-505 contacts →

Exact match

“Enaqua - Specialist water engineering solutions We design, deliver and consult on specialised water treatment plants focusing mainly on UV, Chlorine Dioxide & Reverse Osmosis…”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
7Exact matchJohannesburg, South AfricaHQ recorded Oct 16, 20261-102 contacts →

Exact match

“Selectra partners with leading international technology providers to locally develop, manufacture and install eco-friendly water & wastewater treatment solutions.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase
8Exact matchJohannesburg, South AfricaHQ recorded Oct 16, 20261-101 contacts →

Exact match

“Water Resource Solutions improves the standard of living and wellness of families in Africa while preserving our planet through the provision of sustainable water solutions.”

Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase

Showing 8 of 25 industrial water treatment installers based in Johannesburg, South Africa

See the full list, filter by size, metro and specialty, and access 129 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial water treatment installers based in Johannesburg, South Africa at a glance

As of Oct 16, 2026
23.7%Verified-email coverage
21.8Average contacts per company
11-50Median size (employees)
Oct 16, 2026Page data refreshed

Companies by employee count

1-10
11
11-50
10
51-200
2
201-500
1
501-1,000
1

Email recency for this list is measured across the whole South Africa list rather than for Johannesburg, so it is reported there. Company counts and contact totals on this page are exact for Johannesburg, over 25 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with Johannesburg, South Africa whose business descriptions match “industrial water treatment installers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 129 professional contacts with verified work emails across the full matched dataset. 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 October 16, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “industrial water treatment installers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial water treatment installers are there based in Johannesburg, South Africa?

RevenueBase identified 25 company matches for industrial water treatment installers associated with Johannesburg, South Africa as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Nafasi Water tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in South Africa has the most industrial water treatment installers?

Johannesburg leads South Africa with 25 company records, followed by Cape Town (21) and Boksburg (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 129 professional contacts with verified work emails tracked across these 25 companies; direct dials are available where recorded.

How current is this list?

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