Company lists · Data refreshed September 2026

Top 25 Engineering companies based in Johannesburg, South Africa

Name: Engineering companies based in Johannesburg, South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 6, 2026 398 companies tracked

This directory lists 398 engineering companies based in Johannesburg, South Africa, with 6,852 contacts and 1,594 email addresses. The list includes companies across engineering disciplines. Use it to identify potential suppliers, partners, and sales prospects as of September 2026. Across South Africa, Johannesburg is the largest hub for this category.

Engineering companies apply scientific, mathematical, and technical principles to design, develop, test, and manage products, systems, structures, or industrial processes. This list covers companies that provide engineering design, consulting, testing, project management, or related technical services. Ranked by team size, largest first. Data current as of September 6, 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 6, 2026 86% judged on-target in blind review

398Companies

6,852Contacts tracked

1,594Verified emails

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The 25 largest engineering companies based in Johannesburg, South Africa

Ranked by team size

Top 25 of 398 engineering companies based in Johannesburg, South Africa, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to engineering 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	WSP In Africa	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	501-1,000	635 contacts →
	Strong evidence “We are one of the world’s leading professional services firms, uniting our engineering, advisory and science-based expertise to shape communities to advance humanity.” Source: RevenueBase Database · checked Sep 6, 2026
2	Steinmüller Africa	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	501-1,000	419 contacts →
	Strong evidence “Steinmuller Africa a member of the Bilfinger group of companies offering a wide range of engineering, manufacturing, pre-fabrication, construction and maintenance services for the…” Source: RevenueBase Database · checked Sep 6, 2026
3	Grinaker-Lta	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	5,001-10,000	376 contacts →
	Strong evidence “Grinaker-LTA is a multi-disciplinary Engineering and Construction company.” Source: RevenueBase Database · checked Sep 6, 2026
4	CKR Consulting Engineers	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	51-200	254 contacts →
	Strong evidence “Founded in 1982 with its roots in Johannesburg, South Africa, CKR Consulting Engineers have grown to become one of the leading multidisciplinary engineering firms in Africa, the…” Source: RevenueBase Database · checked Sep 6, 2026
5	Radel PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	201-500	231 contacts →
	Indirect evidence “We distribute and manufacture quality electrical, electronic and electro-mechanical components.” Source: RevenueBase Database · checked Sep 6, 2026
6	Jones & Wagener PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	51-200	228 contacts →
	Indirect evidence “Jones & Wagener is a specialist firm of consulting engineers and scientists based in South Africa.” Source: RevenueBase Database · checked Sep 6, 2026
7	JG Afrika PTY LTD	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	201-500	221 contacts →
	Strong evidence “JG Afrika, a leading multi-disciplinary engineering and environmental consultancy in South Africa, provides civil and structural engineering and environmental consulting services…” Source: RevenueBase Database · checked Sep 6, 2026
8	Temi Construction	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	201-500	146 contacts →
	Strong evidence “Temi Construction was established in 2010 as a fully functional civil engineering and construction firm.” Source: RevenueBase Database · checked Sep 6, 2026
9	Hi-Tech Recruitment	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	n/a	125 contacts →
	Strong evidence “Hi-Tech Recruitment partners with organisations that rely on specialist capability across IT, Engineering and Finance.” Source: RevenueBase Database · checked Sep 6, 2026
10	Trans-Africa Projects	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	51-200	103 contacts →
	Indirect evidence “Trans-Africa Projects, specialist in High Voltage Services was established in 1995 as a joint venture between Fluor and Eskom to commercially apply resources and expertise in…” Source: RevenueBase Database · checked Sep 6, 2026
11	Veritas Engineering And Project Management Consultants	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	201-500	103 contacts →
	Strong evidence “VERITAS Engineering was founded on the premise of supporting our Client’s in meeting their business growth objectives.” Source: RevenueBase Database · checked Sep 6, 2026
12	Henry Fagan Consulting Engineers & Project Managers	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	201-500	99 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 6, 2026
13	Reunert Limited	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	5,001-10,000	94 contacts →
	Strong evidence “Reunert is an industrial group with a portfolio of businesses in its Electrical Engineering, ICT and Applied Electronics segments.” Source: RevenueBase Database · checked Sep 6, 2026
14	Osmond Lange Architects	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	51-200	84 contacts →
	Indirect evidence “Osmond Lange blends architecture, urban design and development management skills to deliver an integrated package of professional services to its clients.” Source: RevenueBase Database · checked Sep 6, 2026
15	Proconics General Overhauls PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	58 contacts →
	Indirect evidence “ProGO (Pty) Ltd (“ProGO”) is a newly established manufacturing, construction and maintenance work execution company primarily in the petrochemical, mining and power industries…” Source: RevenueBase Database · checked Sep 6, 2026
16	Lidwala Consulting Engineers SA PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	52 contacts →
	Indirect evidence “Lidwala Consulting Engineers (SA)(Pty) Ltd is a multi-disciplinary medium sized consultancy with its headquarters in Johannesburg, South Africa.” Source: RevenueBase Database · checked Sep 6, 2026
17	LEOKA	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	51-200	49 contacts →
	Strong evidence “We offer expertise in multi-disciplinary engineering, project management and advisory services.” Source: RevenueBase Database · checked Sep 6, 2026
18	Maziya General Services CC	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	51-200	46 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 6, 2026
19	CESA	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	n/a	43 contacts →
	Strong evidence “Consulting Engineers South Africa (CESA) is 'Your Partner in Enabling Consulting Engineering Excellence'.” Source: RevenueBase Database · checked Sep 6, 2026
20	Unilecsa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	51-200	41 contacts →
	Indirect evidence “We are an electrical company that specializes in the automation of industrial production and distribution systems.” Source: RevenueBase Database · checked Sep 6, 2026
21	Mamadi And Company SA PTY LTD	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	35 contacts →
	Strong evidence “Mamadi and Company SA Provides End to End Solutions within Engineering and Environmental, Infrastructure Development, Air Quality management services within the private and Public…” Source: RevenueBase Database · checked Sep 6, 2026
22	Caracal Engineering	Strong evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	51-200	35 contacts →
	Strong evidence “Caracal Engineering delivers mechanical engineering, construction and product design services for commercial, industrial and utility scale photovoltaic projects in Africa and the…” Source: RevenueBase Database · checked Sep 6, 2026
23	High Voltage Technology SA	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	51-200	33 contacts →
	Indirect evidence “High Voltage Technology SA (Pty) Ltd (“HVT”) provides “Can do” solutions for tough problems in the electricity transmission & distribution industry.” Source: RevenueBase Database · checked Sep 6, 2026
24	Syncsystems South Africa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	11-50	32 contacts →
	Indirect evidence “SyncSystems is owned by professional engineers with broad industrial experience, including mining, petrochem, biotech and water treatment.” Source: RevenueBase Database · checked Sep 6, 2026
25	Rand Building Hydraulics	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 6, 2026	51-200	31 contacts →
	Indirect evidence “For over 45 years, Rand Building Hydraulics (Pty) Ltd has been a trusted leader in hydraulic solutions, providing design, manufacturing, installation, repairs, and maintenance for…” Source: RevenueBase Database · checked Sep 6, 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: engineering 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 engineering companies.
Partial evidence: Its own public description names part of engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name engineering 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 398 engineering companies based in Johannesburg, South Africa

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Engineering companies based in Johannesburg, South Africa at a glance

As of Sep 6, 2026

23.3%Verified-email coverage

17.2Average contacts per company

11-50Median size (employees)

Sep 6, 2026Page data refreshed

Companies by employee count

1-10

170

11-50

150

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 398 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 engineering 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 Johannesburg, South Africa whose own description of what they do matches “engineering 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 engineering 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 engineering companies, and records with no verified work email. Companies headquartered outside Johannesburg 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, 1,594 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 6, 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.

Engineering companies by metro in South Africa

Frequently asked

How many engineering companies are based in Johannesburg, South Africa?

The directory lists 398 engineering companies based in Johannesburg, South Africa as of September 2026.

What services do engineering companies provide?

Engineering companies provide services such as design, consulting, testing, project management, and technical support across disciplines and industries.

How can I find contacts at engineering companies?

This directory includes 6,852 contacts and 1,594 email addresses associated with engineering companies.

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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.