Company lists · Data refreshed September 2026

Top 25 Electrical grid infrastructure consultants based in Johannesburg, South Africa

Name: Electrical grid infrastructure consultants based in Johannesburg, South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 73 companies tracked

RevenueBase identified 73 electrical grid infrastructure consultants headquartered in Johannesburg, South Africa as of September 2026 and tracks 1,111 professional contacts across them, including 363 with verified work emails. Johannesburg is the largest hub.

This list covers electrical grid infrastructure consultants headquartered in Johannesburg, 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

73Companies

1,111Contacts tracked

363Verified emails

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The 25 largest electrical grid infrastructure consultants based in Johannesburg, South Africa

Ranked by team size

Top 25 of 73 electrical grid infrastructure consultants based in Johannesburg, South Africa, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to electrical grid infrastructure consultants: 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 19, 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 19, 2026
2	CKR Consulting Engineers	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	51-200	254 contacts →
	Indirect evidence “Founded in 1982 with its roots in Johannesburg, South Africa, CKR Consulting Engineers have grown to become one of the leading multidisciplinary engineering firms in Africa, the…” Source: RevenueBase Database · checked Sep 19, 2026
3	Trans-Africa Projects	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 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 19, 2026
4	High Voltage Technology SA	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	51-200	33 contacts →
	Partial 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 19, 2026
5	Syncsystems South Africa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 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 19, 2026
6	DEI Projects PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	51-200	29 contacts →
	Partial evidence “Founded in 1990, D.E.I Projects started as an Electrical and Instrumentation contracting and supply company and has grown into a full-service solutions provider across Southern…” Source: RevenueBase Database · checked Sep 19, 2026
7	Gpwg Engineering	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	51-200	22 contacts →
	Partial evidence “GPWG Engineering is a multi-disciplinary Engineering Company with interests in Contracting activities (Civil, Electrical, Instrumentation, Solar and Mechanical) in the Mining…” Source: RevenueBase Database · checked Sep 19, 2026
8	Ipes Consulting Engineers	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 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 19, 2026
9	Bidvest Renewable Solutions	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	51-200	19 contacts →
	Partial evidence “Bidvest Renewable Solutions offers a wide range of solutions such as Grid-tie PV, Hybrid and offgrid solar systems.” Source: RevenueBase Database · checked Sep 19, 2026
10	RWP Taemane Consulting Engineers	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 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 19, 2026
11	Gridbow	Strong evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	16 contacts →
	Strong evidence “Gridbow is an Award Winning Electrical Infrastructure, Civil Engineering, Consulting, Maintenance and General Services Contracting Company.” Source: RevenueBase Database · checked Sep 19, 2026
12	Innovation Expand	Strong evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	15 contacts →
	Strong 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 19, 2026
13	M Squared Power Generation	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
14	Universal Lightning Protection Services	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	51-200	11 contacts →
	Indirect evidence “Established in 1973, Universal Lightning Protection & Earthing Services T/A Lightning Protection Services specializes in all aspects of earthing and lightning protection.” Source: RevenueBase Database · checked Sep 19, 2026
15	Rhythm Power Solutions PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 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 19, 2026
16	Sigma Consulting Services	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “Sigma Consulting Services (Pty) Ltd is a forward-thinking and versatile South African based professional services and equipment supply company that excels in delivering innovative…” Source: RevenueBase Database · checked Sep 19, 2026
17	Single Desination Engineering	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	10 contacts →
	Indirect evidence “Single Destination Engineering, based in South Africa and Botswana, is a dynamic, innovative engineering consulting and design firm providing a broad range of engineering…” Source: RevenueBase Database · checked Sep 19, 2026
18	Hypower Heavy Current Maintenance PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026
19	Gibb Mining And Power PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	8 contacts →
	Partial evidence “GIBB Power services extend across the electricity value chain.” Source: RevenueBase Database · checked Sep 19, 2026
20	Africa-One Consulting	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	8 contacts →
	Partial evidence “Africa-One Consulting and Research Pty Ltd trading as Africa-One Consulting was formed with initial focus on electrical engineering technology consulting with a vision to later…” Source: RevenueBase Database · checked Sep 19, 2026
21	ALT Energy Solutions Ec&i	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	7 contacts →
	Partial evidence “Alt Energy Solutions is a leading Electrical, Control, and Instrumentation (EC & I) Engineering, Procurement, and Construction (EPC) company, delivering turnkey solutions to the…” Source: RevenueBase Database · checked Sep 19, 2026
22	Synlec PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	1-10	6 contacts →
	Partial evidence “Electrical engineering consulting.” Source: RevenueBase Database · checked Sep 19, 2026
23	Woodbeam PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	51-200	4 contacts →
	Partial evidence “We are WoodBeam (Pty) Ltd an electrical engineering company established in 2002 to serve the electrical industry of Southern Africa by providing secondary substation equipment to…” Source: RevenueBase Database · checked Sep 19, 2026
24	Tiriculam Power PTY LTD	Strong evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	4 contacts →
	Strong evidence “Tiriculam Power (PTY) LTD is an electrical contracting business specializing in design, supply & installation in the following; electrical infrastructure, sustainable & renewable…” Source: RevenueBase Database · checked Sep 19, 2026
25	Lineit Components	Partial evidence	Johannesburg, South AfricaHQ checked Sep 19, 2026	11-50	3 contacts →
	Partial 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

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 grid infrastructure consultants. 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 grid infrastructure consultants.
Partial evidence: Its own public description names part of electrical grid infrastructure consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical grid infrastructure consultants. 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 73 electrical grid infrastructure consultants based in Johannesburg, South Africa

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Electrical grid infrastructure consultants based in Johannesburg, South Africa at a glance

As of Sep 19, 2026

32.7%Verified-email coverage

15.2Average contacts per company

11-50Median size (employees)

100.0%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 across the whole South Africa list rather than for Johannesburg, so it is reported there. Company counts and contact totals on this page are exact for Johannesburg, over 73 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 grid infrastructure consultants, 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 Johannesburg, South Africa whose own description of what they do matches “electrical grid infrastructure consultants”. 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 grid infrastructure consultants), 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 grid infrastructure consultants, and records with no verified work email. Companies headquartered outside Johannesburg 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, 363 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.

Electrical grid infrastructure consultants by metro in South Africa

Electrical grid infrastructure consultants in Johannesburg73
Electrical grid infrastructure consultants in Cape Town60
Electrical grid infrastructure consultants in Pretoria38

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 grid infrastructure consultants, 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 grid infrastructure consultants are there based in Johannesburg, South Africa?

RevenueBase identified 73 electrical grid infrastructure consultants headquartered in Johannesburg, 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 grid infrastructure consultants?

Johannesburg leads with 73 headquartered companies, followed by Cape Town (60) and Pretoria (38).

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 363 verified decision-maker contacts tracked across these 73 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.