Company lists · Data refreshed November 2026

Top 24 Electrical infrastructure testing services based in South Africa

Name: Electrical infrastructure testing services based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 129 companies tracked

RevenueBase identified 129 company matches for electrical infrastructure testing services associated with South Africa as of November 2026 and tracks 900 professional contacts across them, including 149 with verified work emails. Johannesburg is the largest hub.

This list covers company matches for electrical infrastructure testing services 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

129Companies

900Contacts tracked

149Verified emails

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The 24 largest electrical infrastructure testing services based in South Africa

Ranked by team size

Top 24 of 129 company matches for electrical infrastructure testing services 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Trans-Africa Projects	Exact match	Johannesburg, South AfricaHQ recorded Nov 6, 2026	51-200	120 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
2	GVJ Electrical And Instrumentation Contractors PTY LTD	Exact match	Cape Town, South AfricaHQ recorded Nov 6, 2026	51-200	85 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
3	Inexma Electrical	Exact match	Stellenbosch, South AfricaHQ recorded Nov 6, 2026	51-200	43 contacts →
	Exact match “Inexma Electrical is a Electrical construction company based in the Western Cape, South Africa” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Tshepang Electrical PTY LTD	Exact match	Roodepoort, South AfricaHQ recorded Nov 6, 2026	51-200	40 contacts →
	Exact match “Originally established in 1992 as Elective Electrical, in 2003 the company underwent a name change after the acquisition by Tshepang Reticulation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Enzani Technologies	Exact match	Ormonde, South AfricaHQ recorded Nov 6, 2026	51-200	32 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Kumunyack	Exact match	Secunda, South AfricaHQ recorded Nov 6, 2026	11-50	25 contacts →
	Exact match “Installation of Medium and Low Voltage Switchgear, Transformers, Motor Control Centres, Distribution Boards and UPS Systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Tamashi Technology Investments PTY LTD	Exact match	Muldersdrift, South AfricaHQ recorded Nov 6, 2026	11-50	24 contacts →
	Exact match “Supplier of Solutions for Telecommunications, Defence, Aerospace, Transportation, Broadcast, Education, Research and Electronic Manufacturing markets and Related Industries: Power…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Mandlakazi Electrical Technologies	Exact match	Nelspruit, South AfricaHQ recorded Nov 6, 2026	11-50	18 contacts →
	Exact match “Mandlakazi Electrical Technologies (PTY) Ltd otherwise known as MET was established in 1998.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Tshwalec Power Projects PTY LTD	Exact match	Pretoria, South AfricaHQ recorded Nov 6, 2026	11-50	17 contacts →
	Exact match “TSHWALEC POWER PROJECTS is a Electrical High Voltage infrastructure, reticulation & network distribution services provider.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Ompetha Power Projects	Exact match	Centurion, South AfricaHQ recorded Nov 6, 2026	51-200	14 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Siza Wonke Electrical	Exact match	Boksburg, South AfricaHQ recorded Nov 6, 2026	1-10	8 contacts →
	Exact match “Power Factor Correction, Low Voltage and Medium Voltage Installations and Terminations,Factory Maintenance, Electrical Tendering,Lighting, Electrical Inspections, Electrical…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Electric Assemblies	Exact match	Milnerton, South AfricaHQ recorded Nov 6, 2026	11-50	7 contacts →
	Exact match “Electric Assemblies has been a trusted partner in optimizing electrical infrastructures for over 38 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Sibinza Electrical Engineers	Exact match	Pretoria, South AfricaHQ recorded Nov 6, 2026	11-50	7 contacts →
	Exact match “We offer the following services: · Live line maintenance on Overhead lines · Minor and Major Reticulation · LV and MV Maintenance · Pole replacement on Overhead Lines ·…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	GBC Electrical PTY LTD	Exact match	Pretoria, South AfricaHQ recorded Nov 6, 2026	11-50	6 contacts →
	Exact match “Industrial Electrical contractors” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Madonse Consulting Engineers	Exact match	Bedfordview, South AfricaHQ recorded Nov 6, 2026	1-10	5 contacts →
	Exact match “Electrical Consulting Company Specialising in a wide range of services ranging from design, implementation and project administration from building services (Electrical and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Yeyeni Power Group	Exact match	Centurion, South AfricaHQ recorded Nov 6, 2026	1-10	5 contacts →
	Exact match “Switchgear Maintenance Cable fault finding and Jointing Transformer Maintenance LV and MV switchgear Service, Installation and testing and Maintenance Power flow studies…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Synlec PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Nov 6, 2026	1-10	5 contacts →
	Exact match “Electrical engineering consulting.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Electrical Systems Integration	Exact match	Centurion, South AfricaHQ recorded Nov 6, 2026	11-50	4 contacts →
	Exact match “ELECTRICAL SYSTEMS INTEGRATION is a company based out of DIAMOND PARK UNIT 14 92 JAKARANDA STREET, CENTURION, Gauteng, South Africa.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Power Systems Engineering PTY LTD	Exact match	Thabazimbi, South AfricaHQ recorded Nov 6, 2026	1-10	3 contacts →
	Exact match “Electrical Engineers that provide the following services: o Project Management, Engineering and Design o MV and LV Electrical Solutions o Plant Audits o Retrofits o Fault Level…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Reveles Engineering Services	Exact match	Johannesburg, South AfricaHQ recorded Nov 6, 2026	51-200	3 contacts →
	Exact match “Reveles is Engineering consulting company specializing in project management and in the fields of Electrical, Electronics and instrumentation engineering with vast experience in…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	CGI Installations	Exact match	Thabazimbi, South AfricaHQ recorded Nov 6, 2026	11-50	2 contacts →
	Exact match “CGI Installations specialise in providing technical labour for electrical, control and instrumentations services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Arccon Electrical	Exact match	Caledon, South AfricaHQ recorded Nov 6, 2026	1-10	2 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Rivera Consulting And Projects PTY LTD	Exact match	Eersterus, South AfricaHQ recorded Nov 6, 2026	1-10	2 contacts →
	Exact match “About Rivera Consulting Rivera Consulting and Projects (Pty) Ltd is completely dedicated to client satisfaction.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	TDX Power ZA	Exact match	Pretoria, South AfricaHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “TDx Power provides consulting engineering services for the power sector with a particular focus on medium and high voltage power systems.” Recorded in the RevenueBase company graph · Nov 6, 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 “electrical infrastructure testing services”. 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 24 of 129 electrical infrastructure testing services based in South Africa

See the full list, filter by size, metro and specialty, and access 149 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Electrical infrastructure testing services based in South Africa at a glance

As of Nov 6, 2026

16.6%Verified-email coverage

7.0Average contacts per company

11-50Median size (employees)

14.0%Largest-city concentration · Johannesburg

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 129 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 infrastructure testing services” 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 149 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 infrastructure testing services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many electrical infrastructure testing services are there based in South Africa?

RevenueBase identified 129 company matches for electrical infrastructure testing services 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?

Trans-Africa Projects tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most electrical infrastructure testing services?

Johannesburg leads with 18 company records, followed by Cape Town (8) and Pretoria (8).

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 149 professional contacts with verified work emails tracked across these 129 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.