Company lists · Data refreshed September 2026

Top 25 Power quality engineering companies based in South Africa

Name: Power quality engineering companies based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 148 companies tracked

RevenueBase identified 148 power quality engineering companies headquartered in South Africa as of September 2026 and tracks 1,098 professional contacts across them, including 303 with verified work emails. Johannesburg is the largest hub.

This list covers power quality engineering 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 17, 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 17, 2026 86% judged on-target in blind review

148Companies

1,098Contacts tracked

303Verified emails

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The 25 largest power quality engineering companies based in South Africa

Ranked by team size

Top 25 of 148 power quality engineering companies based in South Africa, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to power quality engineering 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	Technoserve	Partial evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	51-200	52 contacts →
	Partial evidence “Electrical and Electronic Engineering” Source: RevenueBase Database · checked Sep 17, 2026
2	Logiproc PTY LTD	Strong evidence	Fourways, South AfricaHQ checked Sep 17, 2026	11-50	39 contacts →
	Strong evidence “LogiProc is a South African based, globally active, process driven, multidisciplinary engineering firm, providing high quality engineering solutions to industry.” Source: RevenueBase Database · checked Sep 17, 2026
3	High Voltage Technology SA	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect 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 17, 2026
4	Syncsystems South Africa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	11-50	32 contacts →
	Indirect evidence “SyncSystems is owned by professional engineers with broad industrial experience, including mining, petrochem, biotech and water treatment.” Source: RevenueBase Database · checked Sep 17, 2026
5	Rotating Equipment Asset Management	Strong evidence	Witbank, South AfricaHQ checked Sep 17, 2026	201-500	30 contacts →
	Strong evidence “Rotating Equipment Asset Management (REAM)(Pty) Ltd is a South African mechanical engineering firm specializing in heavy duty rotating equipment for power generation…” Source: RevenueBase Database · checked Sep 17, 2026
6	RWW Engineering PTY LTD	Indirect evidence	Laser Park, South AfricaHQ checked Sep 17, 2026	51-200	28 contacts →
	Indirect evidence “We are RWW!” Source: RevenueBase Database · checked Sep 17, 2026
7	Onezero Consulting	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	11-50	26 contacts →
	Indirect evidence “Since our inception in 2010, we coined the term Greenovative and have aimed to be pioneers in the electrical and electronic building.” Source: RevenueBase Database · checked Sep 17, 2026
8	Plantech PTY LTD	Partial evidence	Pretoria, South AfricaHQ checked Sep 17, 2026	11-50	25 contacts →
	Partial evidence “Plantech (Pty) Ltd is a consulting engineering firm established in 1982 by Hein Schuld, James Theron and Peet Olivier.” Source: RevenueBase Database · checked Sep 17, 2026
9	Zufi Engineering PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	201-500	24 contacts →
	Partial evidence “ZUFI engineering, is an electrical and mechanical engineering company.” Source: RevenueBase Database · checked Sep 17, 2026
10	CT LAB PTY LTD	Strong evidence	Stellenbosch, South AfricaHQ checked Sep 17, 2026	11-50	23 contacts →
	Strong evidence “CT LAB offers a comprehensive, broadband, waveform synchronised power quality-based system for grid monitoring & management with benefits across multiple disciplines.” Source: RevenueBase Database · checked Sep 17, 2026
11	Ipes Consulting Engineers	Partial evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	11-50	21 contacts →
	Partial evidence “Instrumented Process and Electrical Systems (IPES) was established as an independent engineering design house in 1988 in Johannesburg, South Africa.” Source: RevenueBase Database · checked Sep 17, 2026
12	Dihlase Consulting Engineers	Indirect evidence	Bloemfontein, South AfricaHQ checked Sep 17, 2026	11-50	21 contacts →
	Indirect evidence “Dihlase Consulting Engineers is a company based out of South Africa.” Source: RevenueBase Database · checked Sep 17, 2026
13	Rasnco Consulting Engineers	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	201-500	20 contacts →
	Indirect evidence “We at Rasnco Investments, are a vibrant and innovative company wholly owned by black Professionals, which was established at the beginning of 2017.” Source: RevenueBase Database · checked Sep 17, 2026
14	EIC Projects PTY LTD	Partial evidence	Wilgespruit, South AfricaHQ checked Sep 17, 2026	11-50	18 contacts →
	Partial evidence “EIC Projects is a Johannesburg based engineering, design and consulting company focusing on electrical and instrumentation design and engineering solutions.” Source: RevenueBase Database · checked Sep 17, 2026
15	Iyanda Power Technologies	Strong evidence	Constantia Kloof Ext 2, South AfricaHQ checked Sep 17, 2026	11-50	18 contacts →
	Strong evidence “Iyanda Power Technologies (IPT) is a premier South African supplier of Electrical Engineering services to the Energy, Industrial and Mining industries.” Source: RevenueBase Database · checked Sep 17, 2026
16	RWP Taemane Consulting Engineers	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	11-50	17 contacts →
	Indirect evidence “Rawlins Wales was established in 1987 with offices in Sandton, Pretoria and Durban.” Source: RevenueBase Database · checked Sep 17, 2026
17	Innovation Expand	Partial evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	11-50	15 contacts →
	Partial evidence “We are a technically-led and solutions-orientated consultancy and we strive to empower you in the rapidly evolving world of electrical engineering.” Source: RevenueBase Database · checked Sep 17, 2026
18	Eyethu Engineers PTY LTD	Partial evidence	Durban, South AfricaHQ checked Sep 17, 2026	11-50	15 contacts →
	Partial evidence “Eyethu Engineers delivers successful electrical and civil engineering solutions through exceptional consulting and project management.” Source: RevenueBase Database · checked Sep 17, 2026
19	LNW Consulting Engineers And Project Managers PTY LTD	Indirect evidence	Fairview, South AfricaHQ checked Sep 17, 2026	11-50	14 contacts →
	Indirect evidence “Established in 2001, LNW Consulting Engineers & Project Managers (Pty) Ltd consists of a team of skilled and experienced civil, structural, mechanical and electrical engineers, as…” Source: RevenueBase Database · checked Sep 17, 2026
20	Super Armature Winding Africa	Indirect evidence	Kimberley, South AfricaHQ checked Sep 17, 2026	51-200	13 contacts →
	Indirect evidence “60 years of trusted expert services to our customers.” Source: RevenueBase Database · checked Sep 17, 2026
21	GKB Design Associates PTY LTD	Partial evidence	Pretoria, South AfricaHQ checked Sep 17, 2026	1-10	13 contacts →
	Partial evidence “GKB Design Associates is a consulting engineering company, specialising in Civil, Structural, Mechanical, Transportation and Electrical Engineering.” Source: RevenueBase Database · checked Sep 17, 2026
22	EOH Power Systems	Strong evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	51-200	13 contacts →
	Strong 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 17, 2026
23	Ri&d Projects PTY LTD	Indirect evidence	Middelburg, South AfricaHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect 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 17, 2026
24	Secelec Consulting Engineers PTY LTD	Indirect evidence	Randburg, South AfricaHQ checked Sep 17, 2026	11-50	11 contacts →
	Indirect evidence “Secelec Consulting Engineers (PTY) LTD is an independent company of electrical and electronic consulting engineers, with our office in Randburg and Kimberley in South Africa.” Source: RevenueBase Database · checked Sep 17, 2026
25	Rhythm Power Solutions PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 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 17, 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: power quality engineering 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 power quality engineering companies.
Partial evidence: Its own public description names part of power quality engineering companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name power quality engineering 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 25 of 148 power quality engineering companies based in South Africa

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Power quality engineering companies based in South Africa at a glance

As of Sep 17, 2026

27.6%Verified-email coverage

7.4Average contacts per company

11-50Median size (employees)

21.6%Largest-city concentration · Johannesburg

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 148 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 power quality engineering 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 “power quality engineering 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 power quality engineering 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 power quality engineering 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, 303 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 17, 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.

Power quality engineering companies by metro

Power quality engineering companies in Johannesburg32

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 power quality engineering 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 power quality engineering companies are there based in South Africa?

RevenueBase identified 148 power quality engineering 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?

Technoserve, headquartered in Cape Town, tops this list with the largest team on record.

Which city has the most power quality engineering companies?

Johannesburg leads with 32 headquartered companies, followed by Pretoria (16) and Cape Town (6).

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 303 verified decision-maker contacts tracked across these 148 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 17, 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.