Company lists · Data refreshed September 2026

Top 25 Wastewater treatment biotechnology companies based in South Africa

Name: Wastewater treatment biotechnology 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 135 companies tracked

RevenueBase identified 135 wastewater treatment biotechnology companies headquartered in South Africa as of September 2026 and tracks 2,104 professional contacts across them, including 694 with verified work emails. Johannesburg is the largest hub.

This list covers wastewater treatment biotechnology companies 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 19, 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 19, 2026 86% judged on-target in blind review

135Companies

2,104Contacts tracked

694Verified emails

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The 25 largest wastewater treatment biotechnology companies based in South Africa

Ranked by team size

Top 25 of 135 wastewater treatment biotechnology companies based in South Africa, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to wastewater treatment biotechnology companies: 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	Proxa Water	Partial evidence	Woodmead, South AfricaHQ checked Sep 19, 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 19, 2026
2	ERWAT	Indirect evidence	Kempton Park, South AfricaHQ checked Sep 19, 2026	501-1,000	270 contacts →
	Indirect 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 19, 2026
3	Nafasi Water	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	201-500	175 contacts →
	Indirect 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 19, 2026
4	Watercare Innovations	Partial evidence	Randfontein, South AfricaHQ checked Sep 19, 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 19, 2026
5	Nuwater Systems PTY LTD	Partial evidence	Muizenberg, South AfricaHQ checked Sep 19, 2026	51-200	93 contacts →
	Partial evidence “NuWater is an industry leader and pioneer of smart water treatment solutions.” Source: RevenueBase Database · checked Sep 19, 2026
6	Tecroveer	Partial evidence	Westonaria, South AfricaHQ checked Sep 19, 2026	201-500	86 contacts →
	Partial evidence “Tecroveer Holdings: Revolutionising Water Treatment Since 1976 Mission: We Clean Water.” Source: RevenueBase Database · checked Sep 19, 2026
7	Watericon	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	51-200	51 contacts →
	Indirect 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 19, 2026
8	Alveo Water PTY LTD	Strong evidence	Cape Town, South AfricaHQ checked Sep 19, 2026	51-200	36 contacts →
	Strong evidence “We specialise in the design, manufacturing, installation, and operation of advanced water and wastewater treatment plants.” Source: RevenueBase Database · checked Sep 19, 2026
9	Aquamat Engineering Solutions	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	31 contacts →
	Indirect evidence “Aquamat, established in 1968 active in 33 African Countries.” Source: RevenueBase Database · checked Sep 19, 2026
10	Aquest Colsen PTY LTD	Partial evidence	Port Elizabeth, South AfricaHQ checked Sep 19, 2026	11-50	28 contacts →
	Partial evidence “In our group we have developed a number of technologies in water treatment, energy (biogas) production and nutrient recovery.” Source: RevenueBase Database · checked Sep 19, 2026
11	Prosep PTY LTD	Partial evidence	Boksburg, South AfricaHQ checked Sep 19, 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 19, 2026
12	Hidro-Tech Systems	Strong evidence	Cape Town, South AfricaHQ checked Sep 19, 2026	11-50	14 contacts →
	Strong evidence “Hidro-Tech is a leading water and wastewater treatment engineering firm.” Source: RevenueBase Database · checked Sep 19, 2026
13	Lektratek Water Technology	Partial evidence	Potchefstroom, South AfricaHQ checked Sep 19, 2026	11-50	13 contacts →
	Partial evidence “LWT offers a complete range of mechanical equipment with in-house capabilities from design, manufacture, installation and commissioning for sewage, water treatment & industrial…” Source: RevenueBase Database · checked Sep 19, 2026
14	Acumen Group	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “Acumen Chemicals was formed in 2017 specifically to provide chemicals like coagulants, polymers and flocculants to the Water and Waste-Water Industries.” Source: RevenueBase Database · checked Sep 19, 2026
15	Biocure	Indirect evidence	Cape Town, South AfricaHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence “At BioCure, we believe every environment should feel fresh, clean, and responsibly managed.” Source: RevenueBase Database · checked Sep 19, 2026
16	Malutsa PTY LTD	Partial evidence	Wellington, South AfricaHQ checked Sep 19, 2026	51-200	11 contacts →
	Partial evidence “Malutsa is one of the leading providers of water treatment technology in Sub-Saharan Africa.” Source: RevenueBase Database · checked Sep 19, 2026
17	Becon Watertech	Partial evidence	Westonaria, South AfricaHQ checked Sep 19, 2026	51-200	10 contacts →
	Partial evidence “Becon Watertech is a 40 year company,specializing in providing water and sewage treatment solutions.” Source: RevenueBase Database · checked Sep 19, 2026
18	Telos Water	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	1-10	9 contacts →
	Indirect 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 19, 2026
19	Greenchain Group	Partial evidence	Strand, South AfricaHQ checked Sep 19, 2026	11-50	9 contacts →
	Partial evidence “Leaders in innovative & sustainable water treatment solutions Greenchain Group provides advanced, custom-designed water treatment solutions using cutting-edge membrane technology…” Source: RevenueBase Database · checked Sep 19, 2026
20	Aqua Horizon Technologies	Strong evidence	Pretoria, South AfricaHQ checked Sep 19, 2026	1-10	7 contacts →
	Strong evidence “Aqua Horizon Technologies \| Sustainable Water & Wastewater Treatment Solutions At Aqua Horizon Technologies (AHT), we deliver over three decades of expertise in sustainable water…” Source: RevenueBase Database · checked Sep 19, 2026
21	Regional Waste Water	Partial evidence	Port Elizabeth, South AfricaHQ checked Sep 19, 2026	1-10	7 contacts →
	Partial evidence “Regional Waste Water is a process water treatment specialist company.” Source: RevenueBase Database · checked Sep 19, 2026
22	Memaqua Solutions	Partial evidence	Randburg, South AfricaHQ checked Sep 19, 2026	11-50	7 contacts →
	Partial evidence “Memaqua Solutions Specializes in water treatment solutions for the potable and industrial markets, that include : Mining, Refining, Automotive, Food and Beverage, agricultural…” Source: RevenueBase Database · checked Sep 19, 2026
23	Iwater PTY LTD	Indirect evidence	Bloemfontein, South AfricaHQ checked Sep 19, 2026	11-50	7 contacts →
	Indirect evidence “iWater (Pty) Ltd (iWater) is a dynamic technology company focused on the management of metabolic microbial dynamics (i.e.” Source: RevenueBase Database · checked Sep 19, 2026
24	Puraplan PTY LTD	Strong evidence	Durban, South AfricaHQ checked Sep 19, 2026	1-10	6 contacts →
	Strong evidence “PuraPlan is a design and project services company focusing on water and wastewater treatment.” Source: RevenueBase Database · checked Sep 19, 2026
25	Enaqua PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	6 contacts →
	Partial evidence “Enaqua - Specialist water engineering solutions We design, deliver and consult on specialised water treatment plants focusing mainly on UV, Chlorine Dioxide & Reverse Osmosis…” Source: RevenueBase Database · checked Sep 19, 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: wastewater treatment biotechnology companies. 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 wastewater treatment biotechnology companies.
Partial evidence: Its own public description names part of wastewater treatment biotechnology companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name wastewater treatment biotechnology companies. 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 135 wastewater treatment biotechnology companies based in South Africa

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Wastewater treatment biotechnology companies based in South Africa at a glance

As of Sep 19, 2026

33.0%Verified-email coverage

15.6Average contacts per company

11-50Median size (employees)

17.8%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 135 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 wastewater treatment biotechnology companies, 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 “wastewater treatment biotechnology companies”. 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 wastewater treatment biotechnology companies), 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 wastewater treatment biotechnology companies, 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, 694 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 19, 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 wastewater treatment biotechnology companies, 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 wastewater treatment biotechnology companies are there based in South Africa?

RevenueBase identified 135 wastewater treatment biotechnology companies 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?

Proxa Water, headquartered in Woodmead, tops this list with the largest team on record.

Which city has the most wastewater treatment biotechnology companies?

Johannesburg leads with 24 headquartered companies, followed by Cape Town (19) and Port Elizabeth (5).

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 694 verified decision-maker contacts tracked across these 135 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 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 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.