Company lists · Data refreshed September 2026

Top 25 Electrical engineering firms for renewable energy based in Johannesburg, South Africa

Name: Electrical engineering firms for renewable energy based in Johannesburg, South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 132 companies tracked

RevenueBase identified 132 electrical engineering firms for renewable energy headquartered in Johannesburg, South Africa as of September 2026 and tracks 1,021 professional contacts across them, including 334 with verified work emails. Johannesburg is the largest hub.

This list covers electrical engineering firms for renewable energy 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 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

132Companies

1,021Contacts tracked

334Verified emails

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The 25 largest electrical engineering firms for renewable energy based in Johannesburg, South Africa

Ranked by team size

Top 25 of 132 electrical engineering firms for renewable energy based in Johannesburg, 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 engineering firms for renewable energy: 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	ABC Solar SA	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	201-500	122 contacts →
	Indirect evidence “At ABC Solar, we do more than deliver solar infrastructure; we engineer certainty.” Source: RevenueBase Database · checked Sep 16, 2026
2	Gosolr	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	51-200	112 contacts →
	Indirect evidence “GoSolr is here to power your life.” Source: RevenueBase Database · checked Sep 16, 2026
3	Wetility	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	51-200	96 contacts →
	Indirect evidence “In a world where unpredictability has become the norm, people and businesses need more than access to essential services.” Source: RevenueBase Database · checked Sep 16, 2026
4	Harmattan Renewables	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	35 contacts →
	Partial evidence “Harmattan Renewables brings together a team of experienced renewables consultants who have been at the forefront of developing Africa’s renewables sector.” Source: RevenueBase Database · checked Sep 16, 2026
5	Caracal Engineering	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	51-200	35 contacts →
	Partial evidence “Caracal Engineering delivers mechanical engineering, construction and product design services for commercial, industrial and utility scale photovoltaic projects in Africa and the…” Source: RevenueBase Database · checked Sep 16, 2026
6	Syncsystems South Africa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 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 16, 2026
7	DEI Projects PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 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 16, 2026
8	Journey2green	Strong evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	22 contacts →
	Strong evidence “Journey2Green see the decision to go Renewable Energy as a Journey and like any journey you plan for it with a start date, an end-destination and a route plan to get you there…” Source: RevenueBase Database · checked Sep 16, 2026
9	Gpwg Engineering	Strong evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	51-200	22 contacts →
	Strong 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 16, 2026
10	Ipes Consulting Engineers	Strong evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	21 contacts →
	Strong 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 16, 2026
11	Bidvest Renewable Solutions	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 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 16, 2026
12	RWP Taemane Consulting Engineers	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 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 16, 2026
13	Innovation Expand	Strong evidence	Johannesburg, South AfricaHQ checked Sep 16, 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 16, 2026
14	Blockpower	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	15 contacts →
	Indirect evidence “Welcome to Blockpower – Experienced in grid tied, hybrid and off-grid solar PV applications, with partners in industrial scale PV, automation and manufacturing.” Source: RevenueBase Database · checked Sep 16, 2026
15	Easypower	Strong evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	15 contacts →
	Strong evidence “EasyPower is a proudly African company and a market leader in South Africa in the supply of specialised Renewable energy hardware, design and turnkey installation of Renewable…” Source: RevenueBase Database · checked Sep 16, 2026
16	Zero Point Energy	Strong evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	14 contacts →
	Strong evidence “Established & operational since 2015, we are a proudly South African sustainable energy company providing professional engineering consulting, turn-key Engineering, Procurement &…” Source: RevenueBase Database · checked Sep 16, 2026
17	M Squared Power Generation	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	11 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
18	Sigma Consulting Services	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 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 16, 2026
19	Single Desination Engineering	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	10 contacts →
	Partial 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 16, 2026
20	Pure Electrical Solutions Gauteng	Strong evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	9 contacts →
	Strong evidence “Pure Electrical Solutions is a leading solar company dedicated to providing innovative and sustainable energy solutions for residential, industrial, and commercial sectors.” Source: RevenueBase Database · checked Sep 16, 2026
21	Solarquest	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	9 contacts →
	Indirect evidence “Solarquest Africa provides custom made solar solutions to meet your projects requirements.” Source: RevenueBase Database · checked Sep 16, 2026
22	Gibb Mining And Power PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	8 contacts →
	Partial evidence “GIBB Power services extend across the electricity value chain.” Source: RevenueBase Database · checked Sep 16, 2026
23	Pendo Energy Solutions PTY LTD	Strong evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	8 contacts →
	Strong evidence “Pendo is a proudly South African company led by professional engineers and technologists specialising in the design and management of - Renewable Energy Projects - Building…” Source: RevenueBase Database · checked Sep 16, 2026
24	Resurgent Energy PTY LTD	Strong evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	8 contacts →
	Strong evidence “Resurgent Energy as a turn-key renewable energy solutions developer and product supplier to the logistics, commercial and residential sectors, seeking unique solutions for variety…” Source: RevenueBase Database · checked Sep 16, 2026
25	Africa-One Consulting	Strong evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	8 contacts →
	Strong 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 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 engineering firms for renewable energy. 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 engineering firms for renewable energy.
Partial evidence: Its own public description names part of electrical engineering firms for renewable energy, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name electrical engineering firms for renewable energy. 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 132 electrical engineering firms for renewable energy based in Johannesburg, South Africa

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Electrical engineering firms for renewable energy based in Johannesburg, South Africa at a glance

As of Sep 16, 2026

32.7%Verified-email coverage

7.7Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Johannesburg

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 132 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 engineering firms for renewable energy, 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 engineering firms for renewable energy”. 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 engineering firms for renewable energy), 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 engineering firms for renewable energy, 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, 334 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 engineering firms for renewable energy by metro in South Africa

Electrical engineering firms for renewable energy in Johannesburg132
Electrical engineering firms for renewable energy in Cape Town118
Electrical engineering firms for renewable energy in Pretoria65
Electrical engineering firms for renewable energy in Centurion25

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 engineering firms for renewable energy, 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 engineering firms for renewable energy are there based in Johannesburg, South Africa?

RevenueBase identified 132 electrical engineering firms for renewable energy 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?

ABC Solar SA, headquartered in Johannesburg, tops this list with the largest team on record.

Which city has the most electrical engineering firms for renewable energy?

Johannesburg leads with 132 headquartered companies, followed by Cape Town (118) and Pretoria (65).

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 334 verified decision-maker contacts tracked across these 132 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.