Company lists · Data refreshed September 2026

Top 25 Wastewater engineering companies based in South Africa

Name: Wastewater engineering companies based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 168 companies tracked

RevenueBase identified 168 company matches for wastewater engineering companies associated with South Africa as of September 2026 and tracks 2,727 professional contacts across them, including 855 with verified work emails. Johannesburg is the largest hub.

This list covers company matches for wastewater engineering companies associated with 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 September 19, 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 Sep 19, 2026 How this list was built

168Companies

2,727Contacts tracked

855Verified emails

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The 25 largest wastewater engineering companies based in South Africa

Ranked by team size

Top 25 of 168 company matches for wastewater engineering companies based in South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Proxa Water	Exact match	Woodmead, South AfricaHQ recorded Sep 19, 2026	201-500	358 contacts →
	Exact match “Proxa is a leading water treatment specialist whose integrated services cover the entire water cycle and span numerous global industries, including: mining, food & beverage…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2	ERWAT	Exact match	Kempton Park, South AfricaHQ recorded Sep 19, 2026	501-1,000	270 contacts →
	Exact match “ERWAT provides sustainable, affordable, quality water care and resource recovery services through partnerships and collaborative initiatives with external role players, utilising…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3	Talbot	Exact match	Durban, South AfricaHQ recorded Sep 19, 2026	51-200	202 contacts →
	Exact match “Increasing pressure on water resources is leading to a global rise in supply-risk and cost of total water management.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4	Nafasi Water	Exact match	Johannesburg, South AfricaHQ recorded Sep 19, 2026	201-500	175 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 · Sep 19, 2026 · View company records in RevenueBase
5	Watercare Innovations	Exact match	Randfontein, South AfricaHQ recorded Sep 19, 2026	201-500	165 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6	Tecroveer	Exact match	Westonaria, South AfricaHQ recorded Sep 19, 2026	201-500	86 contacts →
	Exact match “Tecroveer Holdings: Revolutionising Water Treatment Since 1976 Mission: We Clean Water.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7	Empa Structures	Exact match	Durbanville, South AfricaHQ recorded Sep 19, 2026	201-500	83 contacts →
	Exact match “We offer expertise over the entire spectrum of civil engineering construction with it’s main focus on construction of water treatment plants, waste water treatment plants…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8	WEC Water	Exact match	Johannesburg, South AfricaHQ recorded Sep 19, 2026	51-200	57 contacts →
	Exact match “WEC Water is an EPC contractor in the water and wastewater treatment sector.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9	Watericon	Exact match	Johannesburg, South AfricaHQ recorded Sep 19, 2026	51-200	51 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 · Sep 19, 2026 · View company records in RevenueBase
10	WRP Consulting Engineers	Exact match	Groenkloof, South AfricaHQ recorded Sep 19, 2026	11-50	37 contacts →
	Exact match “WRP is a proudly level 2 BB-BEE specialist engineering consultancy founded and cultivated in South Africa.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11	Alveo Water PTY LTD	Exact match	Cape Town, South AfricaHQ recorded Sep 19, 2026	51-200	36 contacts →
	Exact match “We specialise in the design, manufacturing, installation, and operation of advanced water and wastewater treatment plants.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12	Sewtreat	Exact match	Pretoria, South AfricaHQ recorded Sep 19, 2026	51-200	30 contacts →
	Exact match “SewTreat (Pty) Ltd is a renowned South African company with a global reputation for delivering exceptional water management solutions across diverse sectors.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13	Aquest Colsen PTY LTD	Exact match	Port Elizabeth, South AfricaHQ recorded Sep 19, 2026	11-50	28 contacts →
	Exact match “In our group we have developed a number of technologies in water treatment, energy (biogas) production and nutrient recovery.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14	Kainos Projects Africa	Exact match	Cape Town, South AfricaHQ recorded Sep 19, 2026	11-50	28 contacts →
	Exact match “Kainos Projects Africa (Kainos) consists of a multidisciplinary team of engineers and technicians with a combined >100 years’ experience in a wide range of technologies in water…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15	Pro-Plan Consulting Engineers	Exact match	Noordheuwel, South AfricaHQ recorded Sep 19, 2026	51-200	24 contacts →
	Exact match “Pro-Plan Consulting Engineers is a South African firm specialising in water and civil infrastructure-from bulk water supply, treatment plants and reservoirs to multidisciplinary…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16	Water And Sanitation Services South Africa Proprietary Limited	Exact match	Sandton, South AfricaHQ recorded Sep 19, 2026	1-10	23 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17	S.A.M.E. Water	Exact match	Alberton, South AfricaHQ recorded Sep 19, 2026	51-200	22 contacts →
	Exact match “The S.A.M.E.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18	Prosep PTY LTD	Exact match	Boksburg, South AfricaHQ recorded Sep 19, 2026	51-200	18 contacts →
	Exact match “Welcome to Prosep, a premier leader in the water treatment industry with over 20 years of experience.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19	Aqua Aero Vitae	Exact match	Cape Town, South AfricaHQ recorded Sep 19, 2026	1-10	15 contacts →
	Exact match “Aqua Aero Vitae (A2V) are specialists in water and efflluent treatment plants and air filtration systems.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20	Hidro-Tech Systems	Exact match	Cape Town, South AfricaHQ recorded Sep 19, 2026	11-50	14 contacts →
	Exact match “Hidro-Tech is a leading water and wastewater treatment engineering firm.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21	QFS	Exact match	Cape Town, South AfricaHQ recorded Sep 19, 2026	11-50	14 contacts →
	Exact match “QFS have the capability to design, manufacture, install, commissioning and maintain membrane plants and general water treatment equipment in South Africa.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22	Lektratek Water Technology	Exact match	Potchefstroom, South AfricaHQ recorded Sep 19, 2026	11-50	13 contacts →
	Exact match “LWT offers a complete range of mechanical equipment with in-house capabilities from design, manufacture, installation and commissioning for sewage, water treatment & industrial…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23	Zana Manzi Services	Exact match	Johannesburg, South AfricaHQ recorded Sep 19, 2026	501-1,000	12 contacts →
	Exact match “Zana Manzi Services specialises in the management, construction, refurbishment, operation and maintenance of water and wastewater systems.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24	Arquero Technical Support	Exact match	Johannesburg, South AfricaHQ recorded Sep 19, 2026	11-50	11 contacts →
	Exact match “ARQUERO® provides professional engineering consulting services for HVAC Design, Plumbing & Drainage, Electrical, Fire Protection Systems and Water & Wastewater Treatment Systems…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25	Biocure	Exact match	Cape Town, South AfricaHQ recorded Sep 19, 2026	11-50	11 contacts →
	Exact match “At BioCure, we believe every environment should feel fresh, clean, and responsibly managed.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “wastewater engineering companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 168 wastewater engineering companies based in South Africa

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Wastewater engineering companies based in South Africa at a glance

As of Sep 19, 2026

31.4%Verified-email coverage

16.2Average contacts per company

11-50Median size (employees)

14.3%Largest-city concentration · Johannesburg

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 168 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 South Africa whose business descriptions match “wastewater engineering companies” 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 855 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 September 19, 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 “wastewater engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wastewater engineering companies are there based in South Africa?

RevenueBase identified 168 company matches for wastewater engineering companies associated with South Africa as of September 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?

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

Which city has the most wastewater engineering companies?

Johannesburg leads with 24 company records, followed by Cape Town (19) and Durban (10).

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 855 professional contacts with verified work emails tracked across these 168 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 September 19, 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.