Company lists · Data refreshed September 2026

Top 25 Water efficiency consulting firms based in South Africa

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

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 89 companies tracked

RevenueBase identified 89 water efficiency consulting firms headquartered in South Africa as of September 2026 and tracks 1,129 professional contacts across them, including 486 with verified work emails. Johannesburg is the largest hub.

This list covers water efficiency consulting firms 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 29, 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 29, 2026 86% judged on-target in blind review

89Companies

1,129Contacts tracked

486Verified emails

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The 25 largest water efficiency consulting firms based in South Africa

Ranked by team size

Top 25 of 89 water efficiency consulting firms based in South Africa, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to water efficiency consulting firms: 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 29, 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 29, 2026
2	Talbot	Partial evidence	Durban, South AfricaHQ checked Sep 29, 2026	51-200	202 contacts →
	Partial evidence “Increasing pressure on water resources is leading to a global rise in supply-risk and cost of total water management.” Source: RevenueBase Database · checked Sep 29, 2026
3	Watericon	Partial evidence	Johannesburg, South AfricaHQ checked Sep 29, 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 29, 2026
4	GLS Consulting PTY LTD	Strong evidence	Stellenbosch, South AfricaHQ checked Sep 29, 2026	11-50	38 contacts →
	Strong 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 29, 2026
5	WRP Consulting Engineers	Indirect evidence	Groenkloof, South AfricaHQ checked Sep 29, 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 29, 2026
6	Alveo Water PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 29, 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 29, 2026
7	Groundtruth	Strong evidence	Hilton, South AfricaHQ checked Sep 29, 2026	11-50	32 contacts →
	Strong evidence “An award-winning multidisciplinary consulting company with over 20 years experience in water, biodiversity, and engineering across aquatic and terrestrial ecosystems.” Source: RevenueBase Database · checked Sep 29, 2026
8	Pro-Plan Consulting Engineers	Strong evidence	Noordheuwel, South AfricaHQ checked Sep 29, 2026	51-200	24 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 29, 2026
9	Prosep PTY LTD	Partial evidence	Boksburg, South AfricaHQ checked Sep 29, 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 29, 2026
10	Ecolution Consulting	Strong evidence	Cape Town, South AfricaHQ checked Sep 29, 2026	11-50	17 contacts →
	Strong evidence “Ecolution Consulting is a green building consultancy demonstrating that responsible design is the most practical and efficient way to build for the future.” Source: RevenueBase Database · checked Sep 29, 2026
11	Triplo4 Sustainable Solutions PTY LTD	Indirect evidence	Ballito, South AfricaHQ checked Sep 29, 2026	11-50	14 contacts →
	Indirect evidence “Triplo 4 specialises in solving environmental challenges and improving environmental performance in a sustainable manner.” Source: RevenueBase Database · checked Sep 29, 2026
12	Clarity	Partial evidence	Pretoria, South AfricaHQ checked Sep 29, 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 29, 2026
13	Reflekt Water	Partial evidence	Cape Town, South AfricaHQ checked Sep 29, 2026	11-50	7 contacts →
	Partial evidence “Established in 2021, REFLEKT WATER is led by three engineers - Marco Kritzinger, Francois Smuts, and James Whitehead.” Source: RevenueBase Database · checked Sep 29, 2026
14	Puraplan PTY LTD	Partial evidence	Durban, South AfricaHQ checked Sep 29, 2026	1-10	6 contacts →
	Partial evidence “PuraPlan is a design and project services company focusing on water and wastewater treatment.” Source: RevenueBase Database · checked Sep 29, 2026
15	Bluedust Engineering Solutions	Indirect evidence	Alberton, South AfricaHQ checked Sep 29, 2026	11-50	6 contacts →
	Indirect evidence “Bluedust Engineering Solutions offers their clients expert-experience across a wide assortment of engineering applications.” Source: RevenueBase Database · checked Sep 29, 2026
16	Engage Energy Engineering	Indirect evidence	Durban, South AfricaHQ checked Sep 29, 2026	1-10	6 contacts →
	Indirect evidence “Engage Energy and Engineering (Pty) Ltd “ENGAGE” has a core team that have worked on over 100 sites locally and internationally; providing energy advisory services, engineering…” Source: RevenueBase Database · checked Sep 29, 2026
17	Maoko Solutions	Strong evidence	Cape Town, South AfricaHQ checked Sep 29, 2026	11-50	6 contacts →
	Strong evidence “Maoko Solutions is an engineering consulting firm providing professional services in Water, Wastewater & General Engineering Sectors.” Source: RevenueBase Database · checked Sep 29, 2026
18	Kwantu Professional Services PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 29, 2026	1-10	5 contacts →
	Partial evidence “Kwantu Professional Services provides consulting and engineering excellence with the broader goal of enhancing communities.” Source: RevenueBase Database · checked Sep 29, 2026
19	Geostratum Water Management Consulting	Strong evidence	Bethlehem, South AfricaHQ checked Sep 29, 2026	1-10	5 contacts →
	Strong evidence “Geostratum Water Management Consulting is a company based out of South Africa” Source: RevenueBase Database · checked Sep 29, 2026
20	Emanti Management	Partial evidence	Stellenbosch, South AfricaHQ checked Sep 29, 2026	1-10	4 contacts →
	Partial evidence “Emanti Management (Pty) Ltd is an expanding broad-based Black Economic Empowerment (BEE) Water and Environmental Engineering specialist consultancy focused on assisting both the…” Source: RevenueBase Database · checked Sep 29, 2026
21	Re-Solve Consulting PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 29, 2026	51-200	4 contacts →
	Partial evidence “Re-Solve Consulting (Pty) Ltd is a consulting firm dedicated to tackling the complex developmental challenges faced by South Africa and other sub-Saharan countries in the realm of…” Source: RevenueBase Database · checked Sep 29, 2026
22	Noa8 Water Specialists	Partial evidence	Pretoria, South AfricaHQ checked Sep 29, 2026	1-10	4 contacts →
	Partial evidence “At NOA8 (Pty) Ltd, we are dedicated to deliver specialized water services with a focus on practical implementation and commercial viability.” Source: RevenueBase Database · checked Sep 29, 2026
23	Axcis Consulting PTY LTD	Strong evidence	Sandton, South AfricaHQ checked Sep 29, 2026	1-10	3 contacts →
	Strong evidence “AXCIS CONSULTING (PTY) LTD Holistic Infrastructure Solutions Provider based at Atrium on 5TH Sandton, Gauteng, South Africa.\| Water \| Sanitation \| Roads & Stormwater \| Township…” Source: RevenueBase Database · checked Sep 29, 2026
24	Ölinga	Indirect evidence	Pretoria, South AfricaHQ checked Sep 29, 2026	11-50	3 contacts →
	Indirect evidence “We empower South African businesses to drastically reduce energy expenditure, maximize tax incentives (Section 12L), ensure regulatory compliance (EPC), and achieve a less…” Source: RevenueBase Database · checked Sep 29, 2026
25	Kwadiwa Africa	Strong evidence	Johannesburg, South AfricaHQ checked Sep 29, 2026	1-10	3 contacts →
	Strong evidence “Kwadiwa Africa offers consulting services within the water, environmental management and engineering service sectors.” Source: RevenueBase Database · checked Sep 29, 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 efficiency consulting firms. 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 efficiency consulting firms.
Partial evidence: Its own public description names part of water efficiency consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name water efficiency consulting firms. 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 89 water efficiency consulting firms based in South Africa

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Water efficiency consulting firms based in South Africa at a glance

As of Sep 29, 2026

43.0%Verified-email coverage

12.7Average contacts per company

1-10Median size (employees)

18.0%Largest-city concentration · Johannesburg

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 89 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 efficiency consulting firms, 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 efficiency consulting firms”. 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 efficiency consulting firms), 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 efficiency consulting firms, 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, 486 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 29, 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 efficiency consulting firms, 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 efficiency consulting firms are there based in South Africa?

RevenueBase identified 89 water efficiency consulting firms 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 water efficiency consulting firms?

Johannesburg leads with 16 headquartered companies, followed by Cape Town (11) and Pretoria (11).

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 486 verified decision-maker contacts tracked across these 89 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 29, 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.