Company lists · Data refreshed September 2026

Top 25 Electrical infrastructure consulting firms based in South Africa

RevenueBase identified 837 electrical infrastructure consulting firms headquartered in South Africa as of September 2026 and tracks 10,804 professional contacts across them, including 3,024 with verified work emails and 329 with mobile numbers. Johannesburg is the largest hub.

This list covers electrical infrastructure 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 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 29, 2026 86% judged on-target in blind review
837Companies
10,804Contacts tracked
3,024Verified emails
329Mobile numbers
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The 25 largest electrical infrastructure consulting firms based in South Africa

Ranked by team size
Top 25 of 837 electrical infrastructure consulting firms based in South Africa, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to electrical infrastructure consulting 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceWaterfall, South AfricaHQ checked Sep 29, 2026501-1,000539 contacts →

Partial evidence

“GIBB is a leading multi-disciplinary engineering consulting company based in South Africa with 67% Black ownership.”

Source: RevenueBase Database · checked Sep 29, 2026
2Partial evidenceSecunda, South AfricaHQ checked Sep 29, 2026201-500468 contacts →

Partial evidence

“MegChem (Pty) Ltd is a multi-disciplinary engineering company based in Secunda, South Africa, providing engineering consulting, procurement, and project management services to…”

Source: RevenueBase Database · checked Sep 29, 2026
3Partial evidenceJohannesburg, South AfricaHQ checked Sep 29, 20261,001-5,000254 contacts →

Partial evidence

“The CONCO Group is Africa’s largest power infrastructure service provider with three decades of Africa-wide experience in transmission, distribution and power infrastructure…”

Source: RevenueBase Database · checked Sep 29, 2026
4Partial evidenceJohannesburg, South AfricaHQ checked Sep 29, 202651-200254 contacts →

Partial 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 29, 2026
5Partial evidencePretoria, South AfricaHQ checked Sep 29, 2026201-500241 contacts →

Partial evidence

“Leading energy & industrial infrastructure consultants, developers and epc contractors - operating globally We offer various design and construction services in the oil/gas…”

Source: RevenueBase Database · checked Sep 29, 2026
6Partial evidenceCape Town, South AfricaHQ checked Sep 29, 2026201-500223 contacts →

Partial evidence

“Rubicon provides world-class products and expert services in lighting, energy, and electric vehicle charging.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceDurban, South AfricaHQ checked Sep 29, 2026201-500207 contacts →

Indirect evidence

“Bosch Projects is a proud member of the Bosch Holdings group of engineering, construction and operations management companies.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceUmhlanga Rocks, South AfricaHQ checked Sep 29, 202651-200163 contacts →

Indirect evidence

“SiVEST is a South African based international company founded in 1952, with offices established in Durban, Johannesburg, Pietermaritzburg, Richards Bay, East London, Port Louis…”

Source: RevenueBase Database · checked Sep 29, 2026
9Partial evidenceRoodepoort, South AfricaHQ checked Sep 29, 2026501-1,000163 contacts →

Partial evidence

“Established in 1982, Tractionel Enterprise is a 100% Black-Owned Level 1 Electrical Construction Company with an outstanding track record in the design, supply, construction and…”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceBryanston, South AfricaHQ checked Sep 29, 202651-200133 contacts →

Indirect evidence

“For more than 22 years, USP & E has helped clients worldwide overcome the risks of downtime, delays, and unreliable power.”

Source: RevenueBase Database · checked Sep 29, 2026
11Indirect evidenceAlberton North, South AfricaHQ checked Sep 29, 2026501-1,000110 contacts →

Indirect evidence

“We service the mining, chemical, oil & gas, industrial plants, transmission & distribution, power generation and renewable energy sectors with a wide footprint throughout South…”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceJohannesburg, South AfricaHQ checked Sep 29, 202651-200103 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 29, 2026
13Partial evidenceCape Town, South AfricaHQ checked Sep 29, 202651-200102 contacts →

Partial evidence

“Sutherland is a multi-disciplinary consulting engineering company with offices in Cape Town, Johannesburg, Durban, and Nairobi, Multidisciplinary sub-disciplines include…”

Source: RevenueBase Database · checked Sep 29, 2026
14Partial evidenceJohannesburg, South AfricaHQ checked Sep 29, 2026201-50099 contacts →

Partial 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 29, 2026
15Partial evidenceCape Town, South AfricaHQ checked Sep 29, 2026501-1,00096 contacts →

Partial evidence

“Brand Engineering SA (Pty) Ltd has been operating in the electrical industry for over 50 years, delivering electrical, instrumentation, and automation installations across…”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceCape Town, South AfricaHQ checked Sep 29, 202651-20081 contacts →

Partial evidence

“GVJ Electrical and Instrumentation Contractors (Pty) are electrical contractors and specialize in electrical reticulation for industrial and commercial projects.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceVaalpark, South AfricaHQ checked Sep 29, 2026201-50080 contacts →

Indirect evidence

“Since Masedi E&I Construction has built an impeccable reputation in the industry with an emphasis on Quality, Safety and Exceptional Service.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidencePretoria, South AfricaHQ checked Sep 29, 202651-20078 contacts →

Indirect evidence

“Powertech System Integrators (PTSI) is a systems engineering business which operates predominantly in the power and energy sectors with customers that include power utilities and…”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceBenoni, South AfricaHQ checked Sep 29, 2026501-1,00071 contacts →

Indirect evidence

“All projects are meticulously planned and strictly monitored to ensure quality and safe service delivery within project’s time constraints.”

Source: RevenueBase Database · checked Sep 29, 2026
20Partial evidenceJohannesburg, South AfricaHQ checked Sep 29, 2026501-1,00071 contacts →

Partial evidence

“Semane Engineering Solutions (Pty) Ltd is an independent South African multi-disciplinary consulting company that provides project management and engineering solutions in…”

Source: RevenueBase Database · checked Sep 29, 2026
21Partial evidenceEast London, South AfricaHQ checked Sep 29, 202651-20069 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 29, 2026
22Partial evidenceMenlyn, South AfricaHQ checked Sep 29, 2026201-50068 contacts →

Partial evidence

“Powertech IST is a diversified engineering solution business, having built up extensive experience in the electrical power, telecommunications, ICT, general and mining industries.”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceCape Town, South AfricaHQ checked Sep 29, 2026201-50063 contacts →

Partial evidence

“Founded in Valley Electrical Contractors has, and continues to strive for excellence in all of the work that we do; whether it be Commercial, Industrial or Residential.”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceCenturion, South AfricaHQ checked Sep 29, 202651-20056 contacts →

Indirect evidence

“ADC Projects provide Project Development, Project Management and Engineering Management services to the heavy industry, including Operating & Maintenance of power plants.”

Source: RevenueBase Database · checked Sep 29, 2026
25Indirect evidenceDurban, South AfricaHQ checked Sep 29, 202651-20056 contacts →

Indirect evidence

“ENsync Engineers, a multi-disciplinary engineering practice with offices in Johannesburg, Cape Town and Durban.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 25 of 837 electrical infrastructure consulting firms based in South Africa

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Electrical infrastructure consulting firms based in South Africa at a glance

As of Sep 29, 2026
28.0%Verified-email coverage
3.0%Mobile-number coverage
12.9Average contacts per company
11-50Median size (employees)
17.1%Largest-city concentration · Johannesburg
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
381
11-50
304
51-200
115
201-500
23
501-1,000
11
1,001-5,000
1

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 31.0d

Company record updated

Median 97.0d

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 electrical infrastructure consulting 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 “electrical infrastructure consulting 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 electrical infrastructure consulting 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 electrical infrastructure 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 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, 3,024 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 29, 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 electrical infrastructure consulting 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 electrical infrastructure consulting firms are there based in South Africa?

RevenueBase identified 837 electrical infrastructure 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?

GIBB, headquartered in Waterfall, tops this list with the largest team on record.

Which city has the most electrical infrastructure consulting firms?

Johannesburg leads with 143 headquartered companies, followed by Cape Town (71) and Pretoria (65).

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 3,024 verified decision-maker contacts tracked across these 837 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 29, 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.