Company lists · Data refreshed September 2026

Top 25 Electrical transmission contractors based in South Africa

Name: Electrical transmission contractors based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 168 companies tracked

RevenueBase identified 168 electrical transmission contractors headquartered in South Africa as of September 2026 and tracks 2,185 professional contacts across them, including 428 with verified work emails. Johannesburg is the largest hub.

This list covers electrical transmission contractors 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 16, 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 16, 2026 86% judged on-target in blind review

168Companies

2,185Contacts tracked

428Verified emails

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The 25 largest electrical transmission contractors based in South Africa

Ranked by team size

Top 25 of 168 electrical transmission contractors based in South Africa, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to electrical transmission contractors: 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	Consolidated Power Project PTY Ltd. In Business Rescue	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	1,001-5,000	254 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 16, 2026
2	Tractionel Enterprise	Partial evidence	Roodepoort, South AfricaHQ checked Sep 16, 2026	501-1,000	163 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 16, 2026
3	Trans-Africa Projects	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 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 16, 2026
4	GVJ Electrical And Instrumentation Contractors PTY LTD	Strong evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	51-200	81 contacts →
	Strong 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 16, 2026
5	Masedi E&i Construction	Indirect evidence	Vaalpark, South AfricaHQ checked Sep 16, 2026	201-500	80 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 16, 2026
6	Valley Electrical Contractors PTY LTD	Strong evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	201-500	63 contacts →
	Strong 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 16, 2026
7	Adenco Construction PTY LTD	Indirect evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	201-500	45 contacts →
	Indirect evidence “Adenco Construction (PTY) Ltd.” Source: RevenueBase Database · checked Sep 16, 2026
8	Khusela Energies	Indirect evidence	Jeffreys Bay, South AfricaHQ checked Sep 16, 2026	11-50	42 contacts →
	Indirect evidence “KHUSELA ENERGIES is a company based in Jeffreys Bay, Eastern Cape that specialises in the construction, maintenance and operational support of renewable energy assets.” Source: RevenueBase Database · checked Sep 16, 2026
9	Inexma Electrical	Partial evidence	Stellenbosch, South AfricaHQ checked Sep 16, 2026	51-200	42 contacts →
	Partial evidence “Inexma Electrical is a Electrical construction company based in the Western Cape, South Africa” Source: RevenueBase Database · checked Sep 16, 2026
10	Global Cables	Strong evidence	Brakpan, South AfricaHQ checked Sep 16, 2026	51-200	38 contacts →
	Strong evidence “Global Cables provides robust power cables that facilitate the transmission and distribution of electricity across diverse industries and communities.” Source: RevenueBase Database · checked Sep 16, 2026
11	High Voltage Technology SA	Strong evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	51-200	33 contacts →
	Strong 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 16, 2026
12	Tgood South Africa	Partial evidence	Edenvale, South AfricaHQ checked Sep 16, 2026	11-50	28 contacts →
	Partial evidence “Founded in 2004 by a team of German engineers and Chinese investors, TGOOD is the world leader in Pre-fabricated E-House solutions, power transmission & distribution equipment…” Source: RevenueBase Database · checked Sep 16, 2026
13	Tshepang Electrical PTY LTD	Partial evidence	Roodepoort, South AfricaHQ checked Sep 16, 2026	51-200	28 contacts →
	Partial evidence “Originally established in 1992 as Elective Electrical, in 2003 the company underwent a name change after the acquisition by Tshepang Reticulation.” Source: RevenueBase Database · checked Sep 16, 2026
14	TSG South-Africa	Indirect evidence	Alberton, South AfricaHQ checked Sep 16, 2026	201-500	22 contacts →
	Indirect evidence “TSG is the leading technical services provider for responsible mobility, operating in more than 30 countries across Europe and Africa, including South Africa.” Source: RevenueBase Database · checked Sep 16, 2026
15	Southern Power Maintenance	Partial evidence	Modderfontein, South AfricaHQ checked Sep 16, 2026	51-200	17 contacts →
	Partial evidence “Southern Power Maintenance is a dynamic electrical engineering company committed to excellence.” Source: RevenueBase Database · checked Sep 16, 2026
16	Ompetha Power Projects	Partial evidence	Centurion, South AfricaHQ checked Sep 16, 2026	51-200	14 contacts →
	Partial evidence “OMPETHA POWER PROJECTS is a an Electrical Construction company Specializes in MV/LV/HV infrastructure from 11kV up to 765kV CIDB Grade 8EP, CSD Compliant B-BBEE Level 1 Eskom…” Source: RevenueBase Database · checked Sep 16, 2026
17	EOH Power Systems	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	51-200	13 contacts →
	Partial evidence “EOH Power Systems (Pty) Ltd provides application engineering solutions that are geared towards the optimisation of Africa's transmission, distribution and industrial power systems.” Source: RevenueBase Database · checked Sep 16, 2026
18	Ri&d Projects PTY LTD	Partial evidence	Middelburg, South AfricaHQ checked Sep 16, 2026	11-50	12 contacts →
	Partial evidence “RI & D Projects (PTY) Ltd was founded in 1994 and specializes in the repair, installation, and development of electrical services to the industrial and mining industries.” Source: RevenueBase Database · checked Sep 16, 2026
19	Rhythm Power Solutions PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	10 contacts →
	Indirect evidence “Our services- Full Self-Build and Own-Build Services- Network planning and master plans- System modelling and load flow simulations, network optimization, load forecasting…” Source: RevenueBase Database · checked Sep 16, 2026
20	Mandlakazi Electrical Technologies	Partial evidence	Nelspruit, South AfricaHQ checked Sep 16, 2026	11-50	10 contacts →
	Partial evidence “Mandlakazi Electrical Technologies (PTY) Ltd otherwise known as MET was established in 1998.” Source: RevenueBase Database · checked Sep 16, 2026
21	Hypower Heavy Current Maintenance PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
22	ADM Engineers	Indirect evidence	Centurion, South AfricaHQ checked Sep 16, 2026	1-10	8 contacts →
	Indirect evidence “ADM Engineers is a multidisciplinary engineering company, focused on the energy and power sectors.” Source: RevenueBase Database · checked Sep 16, 2026
23	Servelec PTY LTD	Partial evidence	Gqeberha, South AfricaHQ checked Sep 16, 2026	51-200	8 contacts →
	Partial evidence “A Full Service Electrical Company” Source: RevenueBase Database · checked Sep 16, 2026
24	LM Power PTY LTD	Indirect evidence	City Of Tshwane, South AfricaHQ checked Sep 16, 2026	51-200	7 contacts →
	Indirect evidence “Highly Dynamic Overhead Line Construction company servicing Southern Africa.” Source: RevenueBase Database · checked Sep 16, 2026
25	Sibinza Electrical Engineers	Indirect evidence	Pretoria, South AfricaHQ checked Sep 16, 2026	11-50	6 contacts →
	Indirect evidence “We offer the following services: · Live line maintenance on Overhead lines · Minor and Major Reticulation · LV and MV Maintenance · Pole replacement on Overhead Lines ·…” Source: RevenueBase Database · checked Sep 16, 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: electrical transmission contractors. 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 electrical transmission contractors.
Partial evidence: Its own public description names part of electrical transmission contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical transmission contractors. 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 168 electrical transmission contractors based in South Africa

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Electrical transmission contractors based in South Africa at a glance

As of Sep 16, 2026

19.6%Verified-email coverage

13.0Average contacts per company

11-50Median size (employees)

14.9%Largest-city concentration · Johannesburg

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 168 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 electrical transmission contractors, 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 transmission contractors”. 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 transmission contractors), 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 transmission contractors, 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, 428 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 16, 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.

Electrical transmission contractors by metro

Electrical transmission contractors in Johannesburg25

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 transmission contractors, 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 transmission contractors are there based in South Africa?

RevenueBase identified 168 electrical transmission contractors 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?

Consolidated Power Project PTY Ltd. In Business Rescue, headquartered in Johannesburg, tops this list with the largest team on record.

Which city has the most electrical transmission contractors?

Johannesburg leads with 25 headquartered companies, followed by Cape Town (13) and Pretoria (8).

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 428 verified decision-maker contacts tracked across these 168 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 16, 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.