Company lists · Data refreshed October 2026

Top 25 Hydrological engineering companies based in South Africa

RevenueBase identified 140 company matches for hydrological engineering companies associated with South Africa as of October 2026 and tracks 1,714 professional contacts across them, including 573 with verified work emails. Johannesburg is the largest hub.

This list covers company matches for hydrological 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 October 14, 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 14, 2026 How this list was built
140Companies
1,714Contacts tracked
573Verified emails
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The 25 largest hydrological engineering companies based in South Africa

Ranked by team size
Top 25 of 140 company matches for hydrological engineering companies based in South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 14, 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 matchDurban, South AfricaHQ recorded Oct 14, 202651-200215 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 · Oct 14, 2026 · View company records in RevenueBase
2Exact matchCity Of Tshwane, South AfricaHQ recorded Oct 14, 2026201-500108 contacts →

Exact match

“iX engineers is a proudly South African multi-disciplinary consulting engineering company with a focus on five key market sectors, being; Water, Energy, Transport, Development…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
3Exact matchPretoria, South AfricaHQ recorded Oct 14, 202651-20096 contacts →

Exact match

“KBK ENGINEERS Pty Ltd is a civil engineering company based out of South Africa.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
4Exact matchDurbanville, South AfricaHQ recorded Oct 14, 2026201-50087 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 · Oct 14, 2026 · View company records in RevenueBase
5Exact matchRivonia, South AfricaHQ recorded Oct 14, 202611-5063 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
6Exact matchPretoria, South AfricaHQ recorded Oct 14, 202611-5050 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
7Exact matchGroenkloof, South AfricaHQ recorded Oct 14, 202611-5040 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 · Oct 14, 2026 · View company records in RevenueBase
8Exact matchGlen Marais, South AfricaHQ recorded Oct 14, 2026n/a39 contacts →

Exact match

“Epitome Consulting is an ambitious, wholly PDI owned and emerging multi-disciplinary civil engineering consultancy and project management firm.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
9Exact matchCape Town, South AfricaHQ recorded Oct 14, 202611-5032 contacts →

Exact match

“NWE Consulting Engineers is a multi-disciplinary consulting engineering company with extensive experience in the engineering disciplines of civil, structural, roads and…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
10Exact matchStellenbosch, South AfricaHQ recorded Oct 14, 202611-5031 contacts →

Exact match

“GEOSS, established on 1 March 2001, specializes in all aspects of hydrogeology, including: • Groundwater exploration (borehole siting, drilling supervision with logging, pumping…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
11Exact matchPietermaritzburg, South AfricaHQ recorded Oct 14, 202651-20031 contacts →

Exact match

“As one of Africa's leading specialist engineering consultancies, we have over 50 years of experience in agricultural, civil, structural, industrial, and mechanical engineering.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
12Exact matchSouth AfricaHQ recorded Oct 14, 202611-5030 contacts →

Exact match

“Project Management International (PMI) is a dynamic project management company specialising in tailor-made Marine Construction, Engineering Services and Survey & Site…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
13Exact matchBellville, South AfricaHQ recorded Oct 14, 202611-5027 contacts →

Exact match

“Project Concept and Feasibility Infrastructure Master Planning and Demand Modelling Infrastructure Cost Estimation Preliminary Engineer Design and Reporting Value Engineering…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
14Exact matchCity Of Tshwane, South AfricaHQ recorded Oct 14, 202611-5026 contacts →

Exact match

“PeraGage is a Leading, Trusted and the Preferred specialist firm of geo-consultants including hydrogeologists, geotechnical engineers and engineering geologists operating…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
15Exact matchNoordheuwel, South AfricaHQ recorded Oct 14, 202651-20024 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 · Oct 14, 2026 · View company records in RevenueBase
16Exact matchDelmas, South AfricaHQ recorded Oct 14, 202611-5021 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
17Exact matchMogale City, South AfricaHQ recorded Oct 14, 2026201-50018 contacts →

Exact match

“With 15 years of industry experience, Cyclone Engineering Project has established itself as a leading company in the field of engineering services.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
18Exact matchStellenbosch, South AfricaHQ recorded Oct 14, 202611-5017 contacts →

Exact match

“WEC-Consult is a South African-owned consulting engineering firm headquartered in Stellenbosch, Western Cape, with the capacity to serve projects across the country and the…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
19Exact matchCape Town, South AfricaHQ recorded Oct 14, 202611-5016 contacts →

Exact match

“Hidro-Tech is a leading water and wastewater treatment engineering firm.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
20Exact matchPaulshof, South AfricaHQ recorded Oct 14, 202611-5015 contacts →

Exact match

“We are able to offer a whole range of assistance, expertise and cutting edge know-how to the Botswana and South Africa, engineering and Construction industry.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
21Exact matchPretoria, South AfricaHQ recorded Oct 14, 20261-1013 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
22Exact matchCenturion, South AfricaHQ recorded Oct 14, 202611-5013 contacts →

Exact match

“Our core expertise is in Civil engineering services (Water & Sanitation, Water treatment & wastewater designs, Roads & Stormwater, Structures, Human Settlement and Project…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
23Exact matchMidrand, South AfricaHQ recorded Oct 14, 20261-1013 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
24Exact matchCity Of Tshwane, South AfricaHQ recorded Oct 14, 202611-5012 contacts →

Exact match

“STRENG Consult is a collaboration of team members with years of experience.”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase
25Exact matchBellville, South AfricaHQ recorded Oct 14, 202611-5011 contacts →

Exact match

“Tricom Africa is a dynamic and dedicated company in mechanical, electrical and instrumentation engineering, especially with regard to pumps, purification and processing of water…”

Recorded in the RevenueBase company graph · Oct 14, 2026 · View company records in RevenueBase

Showing 25 of 140 hydrological engineering companies based in South Africa

See the full list, filter by size, metro and specialty, and access 573 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Hydrological engineering companies based in South Africa at a glance

As of Oct 14, 2026
33.4%Verified-email coverage
12.2Average contacts per company
11-50Median size (employees)
10.7%Largest-city concentration · Johannesburg
Oct 14, 2026Page data refreshed

Companies by employee count

1-10
69
11-50
53
51-200
12
201-500
6

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 140 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 “hydrological 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 573 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 14, 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 “hydrological engineering companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 140 company matches for hydrological engineering companies associated with 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?

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

Which city has the most hydrological engineering companies?

Johannesburg leads with 15 company records, followed by Pretoria (10) and City Of Tshwane (9).

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 573 professional contacts with verified work emails tracked across these 140 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 14, 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.