Company lists · Data refreshed September 2026

Top 24 Critical power infrastructure companies based in South Africa

Name: Critical power infrastructure companies based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 87 companies tracked

RevenueBase identified 87 critical power infrastructure companies headquartered in South Africa as of September 2026 and tracks 1,303 professional contacts across them, including 438 with verified work emails. Johannesburg is the largest hub.

This list covers critical power infrastructure companies 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 19, 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 19, 2026 86% judged on-target in blind review

87Companies

1,303Contacts tracked

438Verified emails

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The 24 largest critical power infrastructure companies based in South Africa

Ranked by team size

Top 24 of 87 critical power infrastructure companies based in South Africa, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to critical power infrastructure 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	Consolidated Power Project PTY Ltd. In Business Rescue	Strong evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	1,001-5,000	254 contacts →
	Strong 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 19, 2026
2	Diesel Electric Services PTY LTD	Partial evidence	Booysens, South AfricaHQ checked Sep 19, 2026	501-1,000	207 contacts →
	Partial evidence “Since 1993 Diesel Electric Services (PTY) Ltd has specialised in the design, manufacture, delivery, installation, commissioning and maintenance of turnkey power solutions to suit…” Source: RevenueBase Database · checked Sep 19, 2026
3	Master Power Technologies	Strong evidence	Midrand, South AfricaHQ checked Sep 19, 2026	51-200	203 contacts →
	Strong evidence “Master Power Technologies (MPT) is a leading provider of critical power and data centre solutions, delivering reliable, scalable, and innovative infrastructure across Africa.” Source: RevenueBase Database · checked Sep 19, 2026
4	Generator And Plant Hire SA PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	201-500	69 contacts →
	Indirect evidence “Specialists in the hire, sales, service and maintenance of mobile robust generator sets for emergency and standby use.” Source: RevenueBase Database · checked Sep 19, 2026
5	Himoinsa Southern Africa	Partial evidence	Port Elizabeth, South AfricaHQ checked Sep 19, 2026	501-1,000	55 contacts →
	Partial evidence “HIMOINSA is a global corporation that designs, manufactures and distributes power generation equipment worldwide.” Source: RevenueBase Database · checked Sep 19, 2026
6	Matase Industrial Solutions	Partial evidence	Alberton, South AfricaHQ checked Sep 19, 2026	11-50	48 contacts →
	Partial evidence “Matase Industrial Solutions is a Level 1 established electrical equipment manufacturer, which specializes in standby generator sets, tower lights, and uninterrupted power systems…” Source: RevenueBase Database · checked Sep 19, 2026
7	Static Power A Division Of Actom PTY LTD	Partial evidence	Benoni, South AfricaHQ checked Sep 19, 2026	51-200	46 contacts →
	Partial evidence “The Static Power group is a division of ACTOM (Pty) Ltd.” Source: RevenueBase Database · checked Sep 19, 2026
8	Diesel Innovations PTY LTD	Partial evidence	Ekurhuleni, South AfricaHQ checked Sep 19, 2026	51-200	28 contacts →
	Partial evidence “Diesel Innovations Diesel Innovations, one of South Africa’s leading generator suppliers can give you peace of mind with turn key solutions to all your power requirements.” Source: RevenueBase Database · checked Sep 19, 2026
9	Twssa Power	Partial evidence	Clayville, South AfricaHQ checked Sep 19, 2026	51-200	25 contacts →
	Partial evidence “TWSSA is B-BBEE Level 2 accredited supplier and installer of industrial generators and alternative power systems.” Source: RevenueBase Database · checked Sep 19, 2026
10	UPS Warehouse	Partial evidence	Linbro Park Ah, South AfricaHQ checked Sep 19, 2026	11-50	21 contacts →
	Partial evidence “UPS Warehouse®, previously known as Tescom SA, brings power protection and reliability to industries across South Africa.” Source: RevenueBase Database · checked Sep 19, 2026
11	Power Development Services PTY LTD	Indirect evidence	Roodepoort, South AfricaHQ checked Sep 19, 2026	11-50	18 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
12	Sub-Sahara Power Distributors	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	14 contacts →
	Partial evidence “With over twenty years of experience in the Backup Power business, we understand the need to provide quality energy sources at competitive prices.” Source: RevenueBase Database · checked Sep 19, 2026
13	Terayne Electrical PTY LTD	Partial evidence	George, South AfricaHQ checked Sep 19, 2026	11-50	8 contacts →
	Partial evidence “We Specialised in Maintenace,Industrial buildings, Construction, Shopping Centres, Restaurants, Home Automation, Lighting and design, Alternative Power such as.” Source: RevenueBase Database · checked Sep 19, 2026
14	Alpha Power	Indirect evidence	Durban, South AfricaHQ checked Sep 19, 2026	51-200	8 contacts →
	Indirect evidence “The best name in the game.” Source: RevenueBase Database · checked Sep 19, 2026
15	Emerald Infrastructure Solutions	Strong evidence	Milnerton, South AfricaHQ checked Sep 19, 2026	11-50	7 contacts →
	Strong evidence “Emerald Infrastructure Solutions cc, supplier of Uninterruptible Power Supplies, Generators, Solar Solutions, Data Centre Infrastructure, Service and Preventative Maintenance.” Source: RevenueBase Database · checked Sep 19, 2026
16	EDS UPS	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	7 contacts →
	Partial evidence “EDS UPS is a leading provider of backup power solutions, serving a diverse range of clients across South Africa.” Source: RevenueBase Database · checked Sep 19, 2026
17	Hudaco Energy	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	6 contacts →
	Indirect evidence “From selecting string lengths and panel configurations that optimize DC performance to designing mounting brackets that fit the exact string configuration at the lowest cost, we…” Source: RevenueBase Database · checked Sep 19, 2026
18	Madonse Consulting Engineers	Indirect evidence	Bedfordview, South AfricaHQ checked Sep 19, 2026	1-10	4 contacts →
	Indirect evidence “Electrical Consulting Company Specialising in a wide range of services ranging from design, implementation and project administration from building services (Electrical and…” Source: RevenueBase Database · checked Sep 19, 2026
19	Lineit Components	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	3 contacts →
	Indirect evidence “Lineit Components was established in South Africa in 2006 with the primary focus of serving the industrial medium and high voltage electrical markets in Southern Africa and abroad.” Source: RevenueBase Database · checked Sep 19, 2026
20	CSP Consulting SA	Partial evidence	Sandton, South AfricaHQ checked Sep 19, 2026	1-10	3 contacts →
	Partial evidence “Welcome to Communications Security Power Consulting (Pty) Ltd, where innovation meets reliability.” Source: RevenueBase Database · checked Sep 19, 2026
21	Estac Engineering	Indirect evidence	Centurion, South AfricaHQ checked Sep 19, 2026	1-10	3 contacts →
	Indirect evidence “ESTAC Engineering is a specialist electrical engineering company providing practical, technically sound solutions for commercial, industrial, agricultural, and property-sector…” Source: RevenueBase Database · checked Sep 19, 2026
22	Sector Solar	Partial evidence	Centurion, South AfricaHQ checked Sep 19, 2026	1-10	1 contacts →
	Partial evidence “Welcome to Sector Solar, specialists in the supply and installation of PV Solar Power Systems, UPS Systems, DC & AC Power Backup Systems, Solar Components, Inverters & Battery…” Source: RevenueBase Database · checked Sep 19, 2026
23	Electrical Backup Services PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence “Electrical Backup Services (Pty) Ltd also known as EBS is an electrical orientated company based in Johannesburg, South Africa.” Source: RevenueBase Database · checked Sep 19, 2026
24	Arccon Electrical	Indirect evidence	Caledon, South AfricaHQ checked Sep 19, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 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: critical power infrastructure 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 critical power infrastructure companies.
Partial evidence: Its own public description names part of critical power infrastructure companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name critical power infrastructure 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 24 of 87 critical power infrastructure companies based in South Africa

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Critical power infrastructure companies based in South Africa at a glance

As of Sep 19, 2026

33.6%Verified-email coverage

15.0Average contacts per company

11-50Median size (employees)

31.0%Largest-city concentration · Johannesburg

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 87 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 critical power infrastructure 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 South Africa whose own description of what they do matches “critical power infrastructure 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 critical power infrastructure 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 critical power infrastructure companies, 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, 438 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 19, 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.

Critical power infrastructure companies by metro

Critical power infrastructure companies in Johannesburg27

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 critical power infrastructure companies, 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 critical power infrastructure companies are there based in South Africa?

RevenueBase identified 87 critical power infrastructure companies 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 critical power infrastructure companies?

Johannesburg leads with 27 headquartered companies, followed by Cape Town (8) and Durban (5).

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 438 verified decision-maker contacts tracked across these 87 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 19, 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.