Company lists · Data refreshed September 2026

Top 25 Geological survey companies based in South Africa

Name: Geological survey companies based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 118 companies tracked

RevenueBase identified 118 geological survey companies headquartered in South Africa as of September 2026 and tracks 1,329 professional contacts across them, including 346 with verified work emails. Johannesburg is the largest hub.

This list covers geological survey 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 20, 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 20, 2026 86% judged on-target in blind review

118Companies

1,329Contacts tracked

346Verified emails

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The 25 largest geological survey companies based in South Africa

Ranked by team size

Top 25 of 118 geological survey companies based in South Africa, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to geological survey 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	Council For Geoscience	Strong evidence	Pretoria, South AfricaHQ checked Sep 20, 2026	201-500	438 contacts →
	Strong evidence “The Council for Geoscience (CGS) is one of the National Science Councils of South Africa and is the legal successor of the Geological Survey of South Africa, which was formed in…” Source: RevenueBase Database · checked Sep 20, 2026
2	The MSA Group	Indirect evidence	Victory Park, South AfricaHQ checked Sep 20, 2026	51-200	110 contacts →
	Indirect evidence “The MSA Group is a leading provider of exploration, geology, mineral resource and reserve estimation, mining and environmental consulting services to the mining industry.” Source: RevenueBase Database · checked Sep 20, 2026
3	Geogroup	Indirect evidence	Sunrella, South AfricaHQ checked Sep 20, 2026	201-500	68 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026
4	Digital Surveying	Partial evidence	Johannesburg, South AfricaHQ checked Sep 20, 2026	51-200	54 contacts →
	Partial evidence “Digital Surveying is a specialist Directional, Geophysical, Geotechnical & Hydrogeological logging company servicing the mining, exploration, and civil engineering industries.” Source: RevenueBase Database · checked Sep 20, 2026
5	Wireline Africa	Indirect evidence	Mooi Nooi, South AfricaHQ checked Sep 20, 2026	51-200	52 contacts →
	Indirect evidence “Wireline Africa is an engineering company that focuses on supplying the local and international mining industry with products and services.” Source: RevenueBase Database · checked Sep 20, 2026
6	Open House Management Solutions	Indirect evidence	Potchefstroom, South AfricaHQ checked Sep 20, 2026	11-50	47 contacts →
	Indirect evidence “Open House Management Solutions is a South-African based, Geotechnical Engineering and Seismological services provider.” Source: RevenueBase Database · checked Sep 20, 2026
7	Premier Mapping Africa	Indirect evidence	Cullinan, South AfricaHQ checked Sep 20, 2026	51-200	34 contacts →
	Indirect evidence “Our scope now includes the engineering, environmental and exploration sectors.” Source: RevenueBase Database · checked Sep 20, 2026
8	Geoss South Africa	Indirect evidence	Stellenbosch, South AfricaHQ checked Sep 20, 2026	11-50	31 contacts →
	Indirect evidence “GEOSS, established on 1 March 2001, specializes in all aspects of hydrogeology, including: • Groundwater exploration (borehole siting, drilling supervision with logging, pumping…” Source: RevenueBase Database · checked Sep 20, 2026
9	Trail Surveys PTY LTD	Partial evidence	Pretoria, South AfricaHQ checked Sep 20, 2026	11-50	26 contacts →
	Partial evidence “Trail Surveys (Pty) Ltd provides a multi-disciplinary surveying service in the following fields: civil engineering, civil construction, hydrographical, mining, cadastral & and…” Source: RevenueBase Database · checked Sep 20, 2026
10	Rafuni PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 20, 2026	11-50	22 contacts →
	Partial evidence “Rafuni offers Geotechnical, Geological and Environmental Consulting Services.” Source: RevenueBase Database · checked Sep 20, 2026
11	Bara Consulting LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 20, 2026	11-50	21 contacts →
	Partial evidence “Bara Consulting is a boutique geological, engineering, ESG and mineral processing consultancy owned and operated by experienced industry professionals and offers high quality…” Source: RevenueBase Database · checked Sep 20, 2026
12	Diabor PTY LTD	Indirect evidence	Pretoria, South AfricaHQ checked Sep 20, 2026	51-200	16 contacts →
	Indirect evidence “Diabor (Pty) ltd is a South African registered company involved in geotechnical and exploration drilling since 1983 and operates in Sub-Sahara Africa.” Source: RevenueBase Database · checked Sep 20, 2026
13	Tritan Survey	Partial evidence	Cape Town, South AfricaHQ checked Sep 20, 2026	11-50	12 contacts →
	Partial evidence “ABOUT US Tritan Survey was formed in 1987 and has been offering survey expertise to clients across Africa since inception.” Source: RevenueBase Database · checked Sep 20, 2026
14	CDJ Land Surveyors	Partial evidence	Johannesburg, South AfricaHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “CDJ Land Surveyors is a proud member of the TerraMatics Group of Companies and provides Professional Land Survey Services to the private and public sectors.” Source: RevenueBase Database · checked Sep 20, 2026
15	Groundwork Consulting	Indirect evidence	Sandton, South AfricaHQ checked Sep 20, 2026	11-50	10 contacts →
	Indirect evidence “Groundwork Consulting is a leading geotechnical consulting firm, harnessing cutting-edge technologies to provide innovative solutions for challenges in both the mining and civil…” Source: RevenueBase Database · checked Sep 20, 2026
16	B&s Geological	Partial evidence	Johannesburg, South AfricaHQ checked Sep 20, 2026	1-10	8 contacts →
	Partial evidence “At B&S Geological we are passionate about applying our geological expertise and mastery of cutting-edge modelling software to make a tangible difference.” Source: RevenueBase Database · checked Sep 20, 2026
17	Earthlab Technical Division	Partial evidence	Fourways, South AfricaHQ checked Sep 20, 2026	11-50	7 contacts →
	Partial evidence “We are experts in offering complete products and services for your geological exploration, resources and reserves, mining, GIS, and project management needs.” Source: RevenueBase Database · checked Sep 20, 2026
18	Gemecs PTY LTD	Partial evidence	Middelburg, South AfricaHQ checked Sep 20, 2026	1-10	6 contacts →
	Partial evidence “We are independent geological consultants providing a world class service in mineral resource management • Provide geological modelling services • Provide experienced and…” Source: RevenueBase Database · checked Sep 20, 2026
19	BAV Consulting SA	Partial evidence	Durban, South AfricaHQ checked Sep 20, 2026	1-10	6 contacts →
	Partial evidence “We provide a reliable and efficient Geo-tech, Geo-hydrology, Survey, Civil Engineering and Project Management services to the engineering and sciences sectors for both private and…” Source: RevenueBase Database · checked Sep 20, 2026
20	Open Ground Resources	Indirect evidence	Pretoria, South AfricaHQ checked Sep 20, 2026	1-10	6 contacts →
	Indirect evidence “Open Ground Resources is an expert geophysical consultancy with more than 20 years of experience specializing in the provision and utilization of geophysical techniques such as…” Source: RevenueBase Database · checked Sep 20, 2026
21	Surphics	Partial evidence	Middelburg, South AfricaHQ checked Sep 20, 2026	1-10	5 contacts →
	Partial evidence “SURPHICS offers surveying services to the mining sector.” Source: RevenueBase Database · checked Sep 20, 2026
22	Melis & DU Plessis Consulting Engineers	Indirect evidence	Cape Town, South AfricaHQ checked Sep 20, 2026	1-10	4 contacts →
	Indirect evidence “Melis & Du Plessis Consulting Engineers have been in existence for 40 years, providing specialist consultancy services in the fields of Geotechnical Engineering and Engineering…” Source: RevenueBase Database · checked Sep 20, 2026
23	PVR Engineering Surveyors	Partial evidence	Midrand, South AfricaHQ checked Sep 20, 2026	1-10	4 contacts →
	Partial evidence “At PVR Engineering Surveyors, we pride ourselves on being a leading provider of precise and reliable data for construction and mining projects.” Source: RevenueBase Database · checked Sep 20, 2026
24	Lefatshe Minerals And Consulting	Indirect evidence	Pretoria, South AfricaHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “Lefatshe Minerals and Consulting (PTY)Ltd, is a 100% Black owned and managed diversified company and has completed successful projects (nationally and internationally) which…” Source: RevenueBase Database · checked Sep 20, 2026
25	DMT KAI Batla PTY LTD	Indirect evidence	Bordeaux, South AfricaHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “DMT Kai Batla is a South African based company, headquartered in Germany under the DMT group which occupies 30 offices worldwide.” Source: RevenueBase Database · checked Sep 20, 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: geological survey 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 geological survey companies.
Partial evidence: Its own public description names part of geological survey companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geological survey 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 118 geological survey companies based in South Africa

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Geological survey companies based in South Africa at a glance

As of Sep 20, 2026

26.0%Verified-email coverage

11.3Average contacts per company

1-10Median size (employees)

16.9%Largest-city concentration · Johannesburg

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

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 118 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 geological survey 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 “geological survey 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 geological survey 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 geological survey 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, 346 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 20, 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 geological survey 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 geological survey companies are there based in South Africa?

RevenueBase identified 118 geological survey 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?

Council For Geoscience, headquartered in Silverton Pretoria, tops this list with the largest team on record.

Which city has the most geological survey companies?

Johannesburg leads with 20 headquartered companies, followed by Pretoria (10) and Middelburg (6).

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 346 verified decision-maker contacts tracked across these 118 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 20, 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.