Company lists · Data refreshed September 2026

Top 25 Geotechnical consulting firms based in South Africa

Name: Geotechnical 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 479 companies tracked

RevenueBase identified 479 geotechnical consulting firms headquartered in South Africa as of September 2026 and tracks 4,920 professional contacts across them, including 1,506 with verified work emails and 157 with mobile numbers. Johannesburg is the largest hub.

This list covers geotechnical 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

479Companies

4,920Contacts tracked

1,506Verified emails

157Mobile numbers

Unlock all 479 companies Free signup · no credit card · 500 free credits

The 25 largest geotechnical consulting firms based in South Africa

Ranked by team size

Top 25 of 479 geotechnical 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 geotechnical 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	Knight Piesold Southern AfricaPartial evidence	Sandton, South Africa	201-500	191
	“Knight Piésold is a global consulting firm that provides specialised services to the mining, power, water resources and infrastructure industries.” Source: company website · checked Sep 3, 2026
2	Romh ConsultingPartial evidence	City Of Tshwane, South Africa	51-200	106
	“We are a team of Professional Engineers, Technical specialists and Project Managers organised to provide specialized consulting and management services within the Engineering and…” Source: company website · checked Sep 3, 2026
3	SutherlandPartial evidence	Umhlanga Durban, South Africa	51-200	102
	“Sutherland is a multi-disciplinary consulting engineering company with offices in Cape Town, Johannesburg, Durban, and Nairobi, Multidisciplinary sub-disciplines include…” Source: company website · checked Sep 3, 2026
4	LTE Consulting PTY LTDPartial evidence	Midrand, South Africa	51-200	102
	“Consulting Engineering Company situated in Midrand, Gauteng specializing in civil engineering design, supervision, project management, land use, town planning, quantity surveying…” Source: company website · checked Sep 3, 2026
5	Henry Fagan Consulting Engineers & Project ManagersPartial evidence	Johannesburg, South Africa	51-200	100
	“At Henry Fagan Consulting Engineers & Project Managers, we are a 100% black-owned, design-focused firm with over 40 years of experience delivering innovative, sustainable, and…” Source: company website · checked Sep 3, 2026
6	Nyeleti Consulting PTY LTDPartial evidence	Westville, South Africa	51-200	93
	“Welcome to Nyeleti Consulting!” Source: company website · checked Sep 3, 2026
7	V3 Consulting Engineers PTY LTDPartial evidence	Polokwane, South Africa	201-500	87
	“As a V3 Consulting Engineers’ family, we pride ourselves in providing professional services to our wide client base.” Source: company website · checked Sep 3, 2026
8	TDS Projects Group PTY LTDIndirect evidence	Irene, South Africa	201-500	87
	“TDS Projects is a dynamic, medium-sized construction company based in Irene, Pretoria.” Source: company website · checked Sep 3, 2026
9	KBK Engineers PTY LTDIndirect evidence	South Africa	51-200	85
	“KBK ENGINEERS Pty Ltd is a civil engineering company based out of South Africa.” Source: company website · checked Sep 3, 2026
10	Ilifa Africa Engineers PTY LTDIndirect evidence	Vanderbijlpark, South Africa	51-200	71
	“Ilifa Africa Engineers is an engineering firm specialising in civil and structural engineering as well as contract and project management.” Source: company website · checked Sep 3, 2026
11	Semane Engineering Solutions PTY LTDPartial evidence	Parktown Johannesburg, South Africa	501-1,000	71
	“Semane Engineering Solutions (Pty) Ltd is an independent South African multi-disciplinary consulting company that provides project management and engineering solutions in…” Source: company website · checked Sep 3, 2026
12	Lukhozi Consulting Engineers PTY LTDPartial evidence	Cape Town, South Africa	51-200	68
	“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…” Source: company website · checked Sep 3, 2026
13	GeogroupIndirect evidence	Parklands, South Africa	201-500	67
	Source: company website · checked Sep 3, 2026
14	Geosure PTY LTDPartial evidence	Midrand, South Africa	51-200	57
	“Since the company's inception in 1992, Geosure has established a formidable reputation in Southern African Geotechnics.” Source: company website · checked Sep 3, 2026
15	G4 Mining And Civils PTY LTDIndirect evidence	Benoni, South Africa	51-200	57
	“Based in Benoni, Gauteng, G4 Mining and Civils (Pty) Ltd is a premier South African construction company specializing in the mining infrastructure sector.” Source: company website · checked Sep 3, 2026
16	AM Consulting Engineers PTY LTDPartial evidence	Midrand, South Africa	201-500	56
	“AM Consulting Engineers (Pty) Ltd (AMCE) provides professional engineering and consulting services to the public and private infrastructure sector.” Source: company website · checked Sep 3, 2026
17	Q&a Consulting PTY LTDPartial evidence	Bloemfontein, South Africa	51-200	56
	“Q&A Consulting offers: Project Management.” Source: company website · checked Sep 3, 2026
18	Kontinental EngineeringIndirect evidence	Centurion, South Africa	201-500	50
	“Kontinental Engineering is a professional and highly experienced construction engineering company working on high-quality projects throughout South Africa.” Source: company website · checked Sep 3, 2026
19	Wepex GeotechnicalPartial evidence	Westville Kwazulunatal, South Africa	201-500	44
	“Geotechnical company” Source: company website · checked Sep 3, 2026
20	Mukona GroupStrong evidence	Midrand, South Africa	51-200	41
	“Mukona Group is a holding company of Mukona Consulting Engineers and Mukona Geotechnics, offering a full spectrum of civil engineering consulting services and geotechnical…” Source: company website · checked Sep 3, 2026
21	Franki Africa PTY LTDPartial evidence	Cape Town, South Africa	51-200	37
	“Franki is the oldest and most established specialist geotechnical contractor in Sub-Saharan Africa.” Source: company website · checked Sep 3, 2026
22	LSL ConsultingPartial evidence	Johannesburg, South Africa	51-200	36
	“LSL Consulting (Pty) Ltd is a specialist Consulting Engineers and Project Manager company in the materials handling, process, steel plants, synfuel and power generating industries.” Source: company website · checked Sep 3, 2026
23	Phoenecian Group PTY LimitedPartial evidence	Tembisa, South Africa	201-500	33
	“Phoenecian Group is a dynamic demolition, civil, building and geotechnical contractor, with an unmatched track record in the private and public sector.” Source: company website · checked Sep 3, 2026
24	Labco Southern Africa PTY LTDIndirect evidence	Port Elizabeth, South Africa	201-500	32
	“Labco provides laboratory testing services in the environmental and civil engineering industries.” Source: company website · checked Sep 3, 2026
25	Venn Milford IncorporatedPartial evidence	Johannesburg, South Africa	51-200	31
	“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…” Source: company website · checked Sep 3, 2026

Showing 25 of 479 geotechnical consulting firms based in South Africa

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 1,506 reachable decision-makers.

Free signup · no credit card

See all 479 companies

Geotechnical consulting firms based in South Africa at a glance

As of Sep 3, 2026

1-10Median size (employees)

JohannesburgLargest hub · 70 HQs

157Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

264

11-50

151

51-200

201-500

501-1,000

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 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 “geotechnical 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 geotechnical 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, 1,506 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.

Geotechnical consulting firms by metro

Geotechnical consulting firms in Johannesburg70
Geotechnical consulting firms in Cape Town41
Geotechnical consulting firms in Pretoria31
Geotechnical consulting firms in City Of Tshwane26

Frequently asked

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

RevenueBase identified 479 geotechnical 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?

Knight Piesold Southern Africa, headquartered in Sandton, tops this list with the largest team on record.

Which city has the most geotechnical consulting firms?

Johannesburg leads with 70 headquartered companies, followed by Cape Town (41) and Pretoria (31).

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 1,506 verified decision-maker contacts tracked across these 479 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.

Ready to reach these companies? Verified emails and direct dials for all 479 geotechnical consulting firms based in South Africa. Start with a free account, no credit card.

Get the full list

Related lists

Geotechnical consulting firms by geography

Browse the directory

Browse: Companies home · All South Africa lists · All Geotechnical consulting firms lists · New lists

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.