Company lists · Data refreshed September 2026

Top 25 Geotechnical construction firms based in South Africa

Name: Geotechnical construction firms based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 219 companies tracked

RevenueBase identified 219 geotechnical construction firms headquartered in South Africa as of September 2026 and tracks 1,952 professional contacts across them, including 470 with verified work emails. Johannesburg is the largest hub.

This list covers geotechnical construction 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 16, 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 16, 2026 86% judged on-target in blind review

219Companies

1,952Contacts tracked

470Verified emails

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The 25 largest geotechnical construction firms based in South Africa

Ranked by team size

Top 25 of 219 geotechnical construction firms based in South Africa, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to geotechnical construction 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	Civils 2000 PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	501-1,000	161 contacts →
	Partial evidence “With over 30 years of experience in the construction of developments, roads, pipelines, and commercial buildings, Civils is committed to delivering excellence in civil engineering…” Source: RevenueBase Database · checked Sep 16, 2026
2	TDS Projects Group PTY LTD	Partial evidence	Irene, South AfricaHQ checked Sep 16, 2026	201-500	87 contacts →
	Partial evidence “TDS Projects is a dynamic, medium-sized construction company based in Irene, Pretoria.” Source: RevenueBase Database · checked Sep 16, 2026
3	Picm PTY LTD	Partial evidence	Randfontein, South AfricaHQ checked Sep 16, 2026	201-500	70 contacts →
	Partial evidence “ABOUT US PICM is a leading provider of high-quality fabrication and civil construction services with a proven track record of delivering exceptional projects since 1980.” Source: RevenueBase Database · checked Sep 16, 2026
4	Geogroup	Indirect evidence	Sunrella, South AfricaHQ checked Sep 16, 2026	201-500	68 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
5	GAST	Indirect evidence	Pretoria, South AfricaHQ checked Sep 16, 2026	201-500	63 contacts →
	Indirect evidence “GAST, founded in 1961 had its roots in the chemical industry.” Source: RevenueBase Database · checked Sep 16, 2026
6	CSV Construction PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	201-500	60 contacts →
	Partial evidence “CSV Construction (Pty) Ltd is a leading diversified Civil Engineering Company with a track record of over 30 years of delivering quality works to clients in Civil and Concrete…” Source: RevenueBase Database · checked Sep 16, 2026
7	G4 Mining And Civils PTY LTD	Partial evidence	Benoni, South AfricaHQ checked Sep 16, 2026	51-200	58 contacts →
	Partial evidence “Based in Benoni, Gauteng, G4 Mining and Civils (Pty) Ltd is a premier South African construction company specializing in the mining infrastructure sector.” Source: RevenueBase Database · checked Sep 16, 2026
8	Geosure PTY LTD	Partial evidence	Durban, South AfricaHQ checked Sep 16, 2026	51-200	57 contacts →
	Partial evidence “Since the company's inception in 1992, Geosure has established a formidable reputation in Southern African Geotechnics.” Source: RevenueBase Database · checked Sep 16, 2026
9	Kontinental Engineering	Partial evidence	Centurion, South AfricaHQ checked Sep 16, 2026	201-500	51 contacts →
	Partial evidence “Kontinental Engineering is a professional and highly experienced construction engineering company working on high-quality projects throughout South Africa.” Source: RevenueBase Database · checked Sep 16, 2026
10	Open House Management Solutions	Partial evidence	Potchefstroom, South AfricaHQ checked Sep 16, 2026	11-50	47 contacts →
	Partial evidence “Open House Management Solutions is a South-African based, Geotechnical Engineering and Seismological services provider.” Source: RevenueBase Database · checked Sep 16, 2026
11	Odoko Construction PTY LTD	Partial evidence	Sandton, South AfricaHQ checked Sep 16, 2026	51-200	43 contacts →
	Partial evidence “TURNKEY SOLUTIONS FOR EARTHMOVING & CIVIL CONSTRUCTION We have over 150 years of collective experience in every aspect of changing the lay of the land to suit construction or…” Source: RevenueBase Database · checked Sep 16, 2026
12	Terra Strata Construction	Strong evidence	Modderfontein, South AfricaHQ checked Sep 16, 2026	51-200	38 contacts →
	Strong evidence “Terra Strata is a Level 1 B-BBEE contractor that provides innovative, professional and cost-effective construction services within the geotechnical and marine construction field…” Source: RevenueBase Database · checked Sep 16, 2026
13	Franki Africa PTY LTD	Partial evidence	Ottery, South AfricaHQ checked Sep 16, 2026	51-200	37 contacts →
	Partial evidence “Franki is the oldest and most established specialist geotechnical contractor in Sub-Saharan Africa.” Source: RevenueBase Database · checked Sep 16, 2026
14	Phoenecian Group PTY Limited	Partial evidence	Tembisa, South AfricaHQ checked Sep 16, 2026	201-500	34 contacts →
	Partial evidence “Phoenecian Group is a dynamic demolition, civil, building and geotechnical contractor, with an unmatched track record in the private and public sector.” Source: RevenueBase Database · checked Sep 16, 2026
15	Project Management International	Partial evidence	South AfricaHQ checked Sep 16, 2026	11-50	30 contacts →
	Partial evidence “Project Management International (PMI) is a dynamic project management company specialising in tailor-made Marine Construction, Engineering Services and Survey & Site…” Source: RevenueBase Database · checked Sep 16, 2026
16	Sotiralis Consulting Engineers	Indirect evidence	Faerie Glen, South AfricaHQ checked Sep 16, 2026	11-50	28 contacts →
	Indirect evidence “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).” Source: RevenueBase Database · checked Sep 16, 2026
17	Cebekhulu Construction	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	26 contacts →
	Partial evidence “Since its founding in 2002, Cebekhulu Construction under the leadership of Philani Cebekhulu, has expanded significantly and transformed into a very significant organisation that…” Source: RevenueBase Database · checked Sep 16, 2026
18	Peragage	Partial evidence	City Of Tshwane, South AfricaHQ checked Sep 16, 2026	11-50	25 contacts →
	Partial evidence “PeraGage is a Leading, Trusted and the Preferred specialist firm of geo-consultants including hydrogeologists, geotechnical engineers and engineering geologists operating…” Source: RevenueBase Database · checked Sep 16, 2026
19	Bloc Contractors	Partial evidence	Durban, South AfricaHQ checked Sep 16, 2026	51-200	25 contacts →
	Partial evidence “Bloc Contractors was established in 2002 and offers specialist geotechnical services such as pipejacking, sheet piling, shoring, lateral support, microtunneling and more.” Source: RevenueBase Database · checked Sep 16, 2026
20	Rafuni PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	22 contacts →
	Partial evidence “Rafuni offers Geotechnical, Geological and Environmental Consulting Services.” Source: RevenueBase Database · checked Sep 16, 2026
21	Fuller Civils	Partial evidence	Potchefstroom, South AfricaHQ checked Sep 16, 2026	201-500	17 contacts →
	Partial evidence “FULLER CIVILS are doing civil construction work in various fields from earthworks, civils, building, and plant hire.” Source: RevenueBase Database · checked Sep 16, 2026
22	Et-Global	Indirect evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	15 contacts →
	Indirect evidence “ET-Global is a specialised engineering technical services company servicing local and international mining and offshore industries.” Source: RevenueBase Database · checked Sep 16, 2026
23	Waco Engineering Services PTY LTD	Indirect evidence	Ekurhuleni, South AfricaHQ checked Sep 16, 2026	11-50	15 contacts →
	Indirect evidence “At Waco Engineering Services (WES), we are your trusted turnkey provider, specialising in Civil Engineering, equipment supply, and project management solutions for all Temporary…” Source: RevenueBase Database · checked Sep 16, 2026
24	Khavhakone Construction Group	Indirect evidence	Pretoria, South AfricaHQ checked Sep 16, 2026	11-50	14 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
25	Zolula	Strong evidence	Stellenbosch, South AfricaHQ checked Sep 16, 2026	51-200	14 contacts →
	Strong evidence “Zolula (Pty) Ltd is a proudly level 1 specialist geotechnical construction company focussed on building strong and meaningful partnerships.” Source: RevenueBase Database · checked Sep 16, 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: geotechnical construction 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 geotechnical construction firms.
Partial evidence: Its own public description names part of geotechnical construction firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name geotechnical construction 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 219 geotechnical construction firms based in South Africa

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Geotechnical construction firms based in South Africa at a glance

As of Sep 16, 2026

24.1%Verified-email coverage

8.9Average contacts per company

11-50Median size (employees)

11.9%Largest-city concentration · Johannesburg

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

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 219 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 geotechnical construction 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 “geotechnical construction 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 geotechnical construction 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 geotechnical construction 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, 470 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 16, 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.

Geotechnical construction firms by metro

Geotechnical construction firms in Johannesburg26

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 geotechnical construction 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 geotechnical construction firms are there based in South Africa?

RevenueBase identified 219 geotechnical construction 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?

Civils 2000 PTY LTD, headquartered in Muizenberg Cape Town, tops this list with the largest team on record.

Which city has the most geotechnical construction firms?

Johannesburg leads with 26 headquartered companies, followed by Cape Town (19) 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 470 verified decision-maker contacts tracked across these 219 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 16, 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.