Company lists · Data refreshed September 2026

Top 25 Subsurface analysis companies based in South Africa

RevenueBase identified 210 company matches for subsurface analysis companies associated with South Africa as of September 2026 and tracks 2,268 professional contacts across them, including 832 with verified work emails. Johannesburg is the largest hub.

This list covers company matches for subsurface analysis 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
210Companies
2,268Contacts tracked
832Verified emails
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The 25 largest subsurface analysis companies based in South Africa

Ranked by team size
Top 25 of 210 company matches for subsurface analysis 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchJohannesburg, South AfricaHQ recorded Sep 19, 202651-200228 contacts →

Exact match

“Jones & Wagener is a specialist firm of consulting engineers and scientists based in South Africa.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchSandton, South AfricaHQ recorded Sep 19, 2026201-500193 contacts →

Exact match

“Knight Piésold is a global consulting firm that provides specialised services to the mining, power, water resources and infrastructure industries.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchPretoria, South AfricaHQ recorded Sep 19, 2026201-50077 contacts →

Exact match

“The Soillab staff compliment includes Engineers, Technologists and Technicians, as well as skilled and semi-skilled operators.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchJohannesburg, South AfricaHQ recorded Sep 19, 2026501-1,00071 contacts →

Exact match

“Semane Engineering Solutions (Pty) Ltd is an independent South African multi-disciplinary consulting company that provides project management and engineering solutions in…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchEast London, South AfricaHQ recorded Sep 19, 202651-20069 contacts →

Exact match

“Lukhozi Consulting Engineers (Pty) Ltd is a Level 1 B-BBEE contributor and a leading multi-disciplinary professional engineering consultancy that offers a professional service…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
6Exact matchSunrella, South AfricaHQ recorded Sep 19, 2026201-50068 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchBenoni, South AfricaHQ recorded Sep 19, 202651-20058 contacts →

Exact match

“Based in Benoni, Gauteng, G4 Mining and Civils (Pty) Ltd is a premier South African construction company specializing in the mining infrastructure sector.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchDurban, South AfricaHQ recorded Sep 19, 202651-20057 contacts →

Exact match

“Since the company's inception in 1992, Geosure has established a formidable reputation in Southern African Geotechnics.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchPotchefstroom, South AfricaHQ recorded Sep 19, 202611-5047 contacts →

Exact match

“Open House Management Solutions is a South-African based, Geotechnical Engineering and Seismological services provider.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchEmalahleni, South AfricaHQ recorded Sep 19, 202651-20044 contacts →

Exact match

“Singo Consulting (Pty) Ltd is a private independent research consultancy and advisory company based in eMalahleni (Witbank), holding no equity in any project and is owned by the…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchMidrand, South AfricaHQ recorded Sep 19, 202651-20041 contacts →

Exact match

“Mukona Group is a holding company of Mukona Consulting Engineers and Mukona Geotechnics, offering a full spectrum of civil engineering consulting services and geotechnical…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchOttery, South AfricaHQ recorded Sep 19, 202651-20037 contacts →

Exact match

“Franki is the oldest and most established specialist geotechnical contractor in Sub-Saharan Africa.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchCape Town, South AfricaHQ recorded Sep 19, 202611-5037 contacts →

Exact match

“Umvoto is an earth sciences consultancy, specializing in environmental resource development, management and sustainability.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchTembisa, South AfricaHQ recorded Sep 19, 2026201-50034 contacts →

Exact match

“Phoenecian Group is a dynamic demolition, civil, building and geotechnical contractor, with an unmatched track record in the private and public sector.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchPort Elizabeth, South AfricaHQ recorded Sep 19, 2026201-50032 contacts →

Exact match

“Labco provides laboratory testing services in the environmental and civil engineering industries.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchStellenbosch, South AfricaHQ recorded Sep 19, 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 · Sep 19, 2026 · View company records in RevenueBase
17Exact matchMidrand, South AfricaHQ recorded Sep 19, 202611-5031 contacts →

Exact match

“Kimopax is a company rendering specialized services in selected earth and environmental sciences, engineering disciplines and related project management functions.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchJohannesburg, South AfricaHQ recorded Sep 19, 202651-20030 contacts →

Exact match

“Since 1947, we have built a reputation as cutting-edge visionaries who deliver quality multi-disciplinary projects and consulting services to clients in the mining, engineering…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchSouth AfricaHQ recorded Sep 19, 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 · Sep 19, 2026 · View company records in RevenueBase
20Exact matchFaerie Glen, South AfricaHQ recorded Sep 19, 202611-5028 contacts →

Exact match

“About us: Sotiralis Consulting Engineers (Pty) Ltd was established in 2007 and is the successor of Sotiralis Consulting (Pty) Ltd (trading as Sotiralis & Associates since 1985).”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchCity Of Tshwane, South AfricaHQ recorded Sep 19, 202611-5025 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 · Sep 19, 2026 · View company records in RevenueBase
22Exact matchCape Town, South AfricaHQ recorded Sep 19, 202611-5023 contacts →

Exact match

“Over the past 20+ years we have successfully delivered services to clients in a wide variety of residential, commercial, and industrial projects with scopes ranging from small to…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchJohannesburg, South AfricaHQ recorded Sep 19, 20261-1022 contacts →

Exact match

“Resultant Consulting Engineers is a dynamic engineering firm specialising in structural design in the mining and heavy industrial sectors.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchJohannesburg, South AfricaHQ recorded Sep 19, 202611-5022 contacts →

Exact match

“Rafuni offers Geotechnical, Geological and Environmental Consulting Services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchJohannesburg, South AfricaHQ recorded Sep 19, 202611-5021 contacts →

Exact match

“Bara Consulting is a boutique geological, engineering, ESG and mineral processing consultancy owned and operated by experienced industry professionals and offers high quality…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 210 subsurface analysis companies based in South Africa

See the full list, filter by size, metro and specialty, and access 832 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Subsurface analysis companies based in South Africa at a glance

As of Sep 19, 2026
36.7%Verified-email coverage
10.8Average contacts per company
1-10Median size (employees)
17.6%Largest-city concentration · Johannesburg
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
114
11-50
64
51-200
21
201-500
10
501-1,000
1

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 210 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 “subsurface analysis 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 832 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 “subsurface analysis companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many subsurface analysis companies are there based in South Africa?

RevenueBase identified 210 company matches for subsurface analysis 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?

Jones & Wagener PTY LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most subsurface analysis companies?

Johannesburg leads with 37 company records, followed by Cape Town (13) and Pretoria (13).

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 832 professional contacts with verified work emails tracked across these 210 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.