Company lists · Data refreshed September 2026

Top 23 Hydrology consulting firms based in South Africa

Name: Hydrology 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 3, 2026 55 companies tracked

RevenueBase identified 55 hydrology consulting firms headquartered in South Africa as of September 2026 and tracks 428 professional contacts across them, including 177 with verified work emails and 12 with mobile numbers. Pretoria is the largest hub.

This list covers hydrology 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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 HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

55Companies

428Contacts tracked

177Verified emails

12Mobile numbers

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The 23 largest hydrology consulting firms based in South Africa

Ranked by team size

Top 23 of 55 hydrology consulting firms based in South Africa, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names hydrology consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	GCS Water & Environmental Consultants PTY LTDIndirect evidence	Rivonia, South AfricaHQ checked Sep 3, 2026	11-50	63
	“Established in 1987, GCS (Pty) Ltd is an independent consultancy offering a range of professional services within the fields of water, environmental and earth sciences.” Source: company website · checked Sep 3, 2026
2	ARQ Consulting Engineers PTY LTDPartial evidence	Pretoria, South AfricaHQ checked Sep 3, 2026	11-50	52
	“ARQ is an award winning consulting engineering firm with a reputation as being a leader in South Africa in our specialist fields of dams & hydro, geotech and bridges.” Source: company website · checked Sep 3, 2026
3	WRP Consulting EngineersIndirect evidence	Groenkloof, South AfricaHQ checked Sep 3, 2026	11-50	37
	“WRP is a proudly level 2 BB-BEE specialist engineering consultancy founded and cultivated in South Africa.” Source: company website · checked Sep 3, 2026
4	UmvotoIndirect evidence	Muizenberg Cape Town, South AfricaHQ checked Sep 3, 2026	11-50	37
	“Umvoto is an earth sciences consultancy, specializing in environmental resource development, management and sustainability.” Source: company website · checked Sep 3, 2026
5	GroundtruthPartial evidence	Hilton, South AfricaHQ checked Sep 3, 2026	11-50	32
	“An award-winning multidisciplinary consulting company with over 20 years experience in water, biodiversity, and engineering across aquatic and terrestrial ecosystems.” Source: company website · checked Sep 3, 2026
6	Geoss South AfricaIndirect evidence	Stellenbosch, South AfricaHQ checked Sep 3, 2026	11-50	31
	“GEOSS, established on 1 March 2001, specializes in all aspects of hydrogeology, including: • Groundwater exploration (borehole siting, drilling supervision with logging, pumping…” Source: company website · checked Sep 3, 2026
7	Pro-Plan Consulting EngineersPartial evidence	Noordheuwel, South AfricaHQ checked Sep 3, 2026	51-200	24
	“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: company website · checked Sep 3, 2026
8	JMA ConsultingPartial evidence	Delmas, South AfricaHQ checked Sep 3, 2026	11-50	21
	“INTRODUCTION JMA Consulting (Pty) Ltd is an environmental consulting company which comprises of highly trained professionals, each of whom are registered with the South African…” Source: company website · checked Sep 3, 2026
9	Artesium Consulting ServicesIndirect evidence	Pretoria, South AfricaHQ checked Sep 3, 2026	1-10	12
	“We are passionate about our vision to provide world leading hydrogeological and mine water management specialist services with the goal of value engineering and determination of…” Source: company website · checked Sep 3, 2026
10	KTN Consulting Engineers And Project ManagersIndirect evidence	Midrand, South AfricaHQ checked Sep 3, 2026	1-10	12
	Source: company website · checked Sep 3, 2026
11	Design Point Consulting EngineersPartial evidence	Lynwood, South AfricaHQ checked Sep 3, 2026	11-50	9
	“Design Point Consulting Engineers is an organisation that has 4 key areas of expertise.” Source: company website · checked Sep 3, 2026
12	Aqua EarthIndirect evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	11-50	8
	“Aqua Earth celebrates more than 20 years of operation and prides itself on having a dynamic team of specialists in Hydrogeology, also identified as Groundwater, as well as…” Source: company website · checked Sep 3, 2026
13	Confluent EnvironmentalPartial evidence	George, South AfricaHQ checked Sep 3, 2026	1-10	7
	“OUR SERVICES We provide aquatic consulting and research services to the agricultural, industrial, mining, tourism and private sectors in South Africa and the rest of Africa and…” Source: company website · checked Sep 3, 2026
14	Geostratum Water Management ConsultingPartial evidence	Bethlehem, South AfricaHQ checked Sep 3, 2026	1-10	5
	“Geostratum Water Management Consulting is a company based out of South Africa” Source: company website · checked Sep 3, 2026
15	Schoeman & VennoteIndirect evidence	Brits, South AfricaHQ checked Sep 3, 2026	11-50	5
	“Civil engineering consultants specialising in water use entitlements.” Source: company website · checked Sep 3, 2026
16	Emanti ManagementIndirect evidence	Stellenbosch, South AfricaHQ checked Sep 3, 2026	1-10	4
	“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: company website · checked Sep 3, 2026
17	Eco-Pulse Environmental Consulting ServicesPartial evidence	Hilton, South AfricaHQ checked Sep 3, 2026	1-10	4
	“Eco-Pulse Environmental Consulting Services (Eco-Pulse) is an environmental consulting company offering selected services in the fields of natural sciences and water resource…” Source: company website · checked Sep 3, 2026
18	Verdant Environmental PTY LTDPartial evidence	Bryanston, South AfricaHQ checked Sep 3, 2026	1-10	3
	“We are an environmental consulting business specialising in freshwater ecosystem (wetlands and rivers) ecological scientific services, water resource management, environmental…” Source: company website · checked Sep 3, 2026
19	Kwadiwa AfricaPartial evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	1-10	3
	“Kwadiwa Africa offers consulting services within the water, environmental management and engineering service sectors.” Source: company website · checked Sep 3, 2026
20	Fourth Element ConsultingPartial evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	1-10	2
	“Fourth Element Consulting provides solutions to protect water resources in developed and developing environments.” Source: company website · checked Sep 3, 2026
21	Entail Geotechnical ConsultingPartial evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	1-10	2
	“Welcome to Entail Geotechnical Consulting, a pioneering force in tailings engineering, dedicated to revolutionizing tailings storage and management solutions and ensuring…” Source: company website · checked Sep 3, 2026
22	Limosella Consulting PTY LTDPartial evidence	Pretoria, South AfricaHQ checked Sep 3, 2026	1-10	2
	“Limosella Consulting specialises in providing expert guidance to clients in the environmental field in terms of wetland and riparian delineations and functional assessments.” Source: company website · checked Sep 3, 2026
23	Emnam Environmental Consulting PTY LTDIndirect evidence	Pretoria Pretoria, South AfricaHQ checked Sep 3, 2026	11-50	1
	“Aquatic Specialists Avifauna Wetland Specialists Environmental Management Biomonitoring Dolomite Stability Geotechnical Investigation Water quality Aerial Surveys Modelling…” Source: company website · checked Sep 3, 2026

Showing 23 of 55 hydrology consulting firms based in South Africa

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Hydrology consulting firms based in South Africa at a glance

As of Sep 3, 2026

1-10Median size (employees)

PretoriaLargest hub · 9 HQs

12Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

Verified emails by last verification

0–30

31–60

61–90

90–180

180+

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 hydrology consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “hydrology consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among hydrology 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 an evidence 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, 177 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 3, 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

How many hydrology consulting firms are there based in South Africa?

RevenueBase identified 55 hydrology 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?

GCS Water & Environmental Consultants PTY LTD, headquartered in Rivonia, tops this list with the largest team on record.

Which city has the most hydrology consulting firms?

Pretoria leads with 9 headquartered companies, followed by Johannesburg (7) and Cape Town (4).

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 177 verified decision-maker contacts tracked across these 55 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 3, 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.