Company lists · Data refreshed September 2026

Top 25 Rock engineering consultants based in Johannesburg, South Africa

Name: Rock engineering consultants based in Johannesburg, South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 87 companies tracked

RevenueBase identified 87 company matches for rock engineering consultants associated with Johannesburg, South Africa as of September 2026 and tracks 1,290 professional contacts across them, including 479 with verified work emails. Across South Africa, Johannesburg is the largest hub for this category.

This list covers company matches for rock engineering consultants associated with Johannesburg, 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 17, 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 17, 2026 How this list was built

87Companies

1,290Contacts tracked

479Verified emails

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The 25 largest rock engineering consultants based in Johannesburg, South Africa

Ranked by team size

Top 25 of 87 company matches for rock engineering consultants based in Johannesburg, South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Jones & Wagener PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	51-200	228 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 17, 2026 · View company records in RevenueBase
2	JG Afrika PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	201-500	221 contacts →
	Exact match “JG Afrika, a leading multi-disciplinary engineering and environmental consultancy in South Africa, provides civil and structural engineering and environmental consulting services…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Henry Fagan Consulting Engineers & Project Managers	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	201-500	99 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Venn Milford Incorporated	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	51-200	30 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 17, 2026 · View company records in RevenueBase
5	L&s Consulting PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	51-200	26 contacts →
	Exact match “L&S Consulting (Pty) Ltd is involved in Structural and Civil Consulting Engineering, mainly for the private sector for industrial, retail and office developments.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Resultant Consulting Engineers	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	1-10	22 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 17, 2026 · View company records in RevenueBase
7	Rafuni PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	22 contacts →
	Exact match “Rafuni offers Geotechnical, Geological and Environmental Consulting Services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Bara Consulting LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	21 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 17, 2026 · View company records in RevenueBase
9	Rasnco Consulting Engineers	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	201-500	20 contacts →
	Exact match “We at Rasnco Investments, are a vibrant and innovative company wholly owned by black Professionals, which was established at the beginning of 2017.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	ADA Consulting Engineers	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	18 contacts →
	Exact match “ADA Consulting Engineers offers professional consulting engineering services to clients in the development of industrial, commercial and public projects in the civil and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Blackhead Consulting	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	13 contacts →
	Exact match “Blackhead Consulting (Pty) Ltd, established in 2004, is a black owned and managed consulting company that provides professional services in the engineering and project management…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Civilab PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	51-200	13 contacts →
	Exact match “Civilab is one of the most technically advanced civil and mining engineering laboratories in South Africa.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Projects And Industrial Engineering	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “Projects & Industrial Engineering is an ISO 9001:2008 accredited professional South African multidisciplinary consulting engineering, design and project Management Company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Sydwalt PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	10 contacts →
	Exact match “SYDWALT (Pty) Ltd is an independent engineering Consulting firm, offering a broad range of professional services.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Carlisle & Associates	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	1-10	8 contacts →
	Exact match “Carlisle & Associates is a civil and structural engineering consultancy based in Johannesburg, South Africa.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Watson Consulting Engineers PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	7 contacts →
	Exact match “Engineering Excellence Our cutting-edge projects are carried out by a team of talented engineers who want to transform our communities.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Sanire	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	1-10	7 contacts →
	Exact match “An institute which actively promotes the South African Rock Engineering Profession.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	PHB Engineers	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	6 contacts →
	Exact match “PHB Engineers is a civil engineering consulting company based out of South Africa.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Rosnovanu & Associates	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	1-10	6 contacts →
	Exact match “Consulting Civil & Structural Engineers specialising in: Factories and Warehouses Apartment building developments Reinforced concrete Houses & residential projects Roads &…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Absolute Mining Consultants PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	1-10	5 contacts →
	Exact match “Abmincon is a specialized Mining Engineering Consultancy dedicated to providing customized and innovative solutions for our clients.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Thuthukani Electrical Control & Instrumentation PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	1-10	5 contacts →
	Exact match “Thuthukani Electrical Control & Instrumentation provides Electrical, Control & Instrumentation Engineering consulting and project management experience, a broad knowledge base…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Delusch Consulting Engineers	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	1-10	5 contacts →
	Exact match “Formerly Barry Devenish & Associates established in 1991, we have over 80 years combined engineering and construction experience including specialised skills in structural steel…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Prysm Resources PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	1-10	3 contacts →
	Exact match “Prysm Resource is a privately owned and operated consultancy, engineering and manufacturing company, providing independent, strategic and tactical advice and personalized…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Lines, Smolka And Associates	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	1-10	3 contacts →
	Exact match “Lines, Smolka and Associates has been providing a range of professional structural engineering and project management services for more than 25 years.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	TVNA	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	3 contacts →
	Exact match “Consulting Civil and Structural Engineering, Concrete repair, Facade Repair, Carbon Fibre Strengthening, Steel Structures, Building Audits, Inspections.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “rock engineering consultants”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 87 rock engineering consultants based in Johannesburg, South Africa

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Rock engineering consultants based in Johannesburg, South Africa at a glance

As of Sep 17, 2026

37.1%Verified-email coverage

14.8Average contacts per company

1-10Median size (employees)

Sep 17, 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 across the whole South Africa list rather than for Johannesburg, so it is reported there. Company counts and contact totals on this page are exact for Johannesburg, over 87 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 Johannesburg, South Africa whose business descriptions match “rock engineering consultants” 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 479 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 17, 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.

Rock engineering consultants by metro in South Africa

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 “rock engineering consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many rock engineering consultants are there based in Johannesburg, South Africa?

RevenueBase identified 87 company matches for rock engineering consultants associated with Johannesburg, 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 in South Africa has the most rock engineering consultants?

Johannesburg leads South Africa with 87 company records, followed by Pretoria (53) and Cape Town (50).

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 479 professional contacts with verified work emails tracked across these 87 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 17, 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.