Company lists · Data refreshed November 2026

Top 25 Electrical engineering contractors based in South Africa

RevenueBase identified 853 company matches for electrical engineering contractors associated with South Africa as of November 2026 and tracks 9,779 professional contacts across them, including 2,338 with verified work emails. Johannesburg is the largest hub.

This list covers company matches for electrical engineering contractors associated with 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 November 6, 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 Nov 6, 2026 How this list was built
853Companies
9,779Contacts tracked
2,338Verified emails
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The 25 largest electrical engineering contractors based in South Africa

Ranked by team size
Top 25 of 853 company matches for electrical engineering contractors based in South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 20261,001-5,000560 contacts →

Exact match

“Voltex is one of South Africa’s leading electrical wholesalers and electrical solutions providers, with 60+ branches nationwide.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchCape Town, South AfricaHQ recorded Nov 6, 2026201-500458 contacts →

Exact match

“Leaders in Power Generation, Mining, Oil and Gas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNatal, South AfricaHQ recorded Nov 6, 2026501-1,000422 contacts →

Exact match

“ARB Electrical Wholesalers is one of Southern Africa’s largest black-empowered electrical wholesalers, playing a pivotal role in providing the essential materials required for the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 20265,001-10,000396 contacts →

Exact match

“Grinaker-LTA is a multi-disciplinary Engineering and Construction company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 20261,001-5,000280 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchPretoria, South AfricaHQ recorded Nov 6, 2026201-500260 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchVanderbijlpark, South AfricaHQ recorded Nov 6, 202651-200188 contacts →

Exact match

“LeadEPC is changing the Game!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchRoodepoort, South AfricaHQ recorded Nov 6, 2026501-1,000179 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchAlberton North, South AfricaHQ recorded Nov 6, 2026501-1,000139 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 2026201-500123 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 202651-200120 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchCape Town, South AfricaHQ recorded Nov 6, 202651-200115 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchSprings, South AfricaHQ recorded Nov 6, 2026501-1,000107 contacts →

Exact match

“Advent One Group (Pty) Ltd provides customer focused construction services and was founded by a team of knowledgeable individuals with over 142 years' combined industry experience…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchIrene, South AfricaHQ recorded Nov 6, 2026201-500102 contacts →

Exact match

“TDS Projects is a dynamic, medium-sized construction company based in Irene, Pretoria.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchCape Town, South AfricaHQ recorded Nov 6, 2026501-1,000100 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchVaalpark, South AfricaHQ recorded Nov 6, 2026201-50086 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchCape Town, South AfricaHQ recorded Nov 6, 202651-20085 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchPort Elizabeth, South AfricaHQ recorded Nov 6, 202651-20081 contacts →

Exact match

“MC Design & Contracting is a people-centred and client-focussed company specializing in industrial projects.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchPretoria, South AfricaHQ recorded Nov 6, 202651-20077 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchCape Town, South AfricaHQ recorded Nov 6, 202651-20075 contacts →

Exact match

“ACTOM Energy, a division of ACTOM (Pty) Ltd, provides world-class Electrical, Automation, Hydraulic and Pneumatic solutions for new plants and upgrades.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchMenlyn, South AfricaHQ recorded Nov 6, 2026201-50075 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCity Of Tshwane, South AfricaHQ recorded Nov 6, 202651-20072 contacts →

Exact match

“Redheads Group is a distinguished international provider of engineering services, catering to a wide array of industries including industrial, commercial, retail, institutional…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchKloof, South AfricaHQ recorded Nov 6, 202651-20072 contacts →

Exact match

“Electrical Installations/ Repairs and Maintenance in Hazardous areas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchCape Town, South AfricaHQ recorded Nov 6, 2026201-50069 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchVanderbijlpark, South AfricaHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“Founded in 2012, BT Projects is a leader in South Africa’s electrical and instrumentation sectors.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 853 electrical engineering contractors based in South Africa

See the full list, filter by size, metro and specialty, and access 2,338 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical engineering contractors based in South Africa at a glance

As of Nov 6, 2026
23.9%Verified-email coverage
11.5Average contacts per company
11-50Median size (employees)
13.6%Largest-city concentration · Johannesburg
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
379
11-50
326
51-200
108
201-500
26
501-1,000
8
1,001-5,000
2
5,001-10,000
1

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 853 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 South Africa whose business descriptions match “electrical engineering contractors” 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 2,338 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 November 6, 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.

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

How many electrical engineering contractors are there based in South Africa?

RevenueBase identified 853 company matches for electrical engineering contractors associated with South Africa as of November 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?

Voltex SA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most electrical engineering contractors?

Johannesburg leads with 116 company records, followed by Cape Town (83) and Pretoria (59).

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 2,338 professional contacts with verified work emails tracked across these 853 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 November 6, 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.