Company lists · Data refreshed September 2026

Top 25 Renewable energy system designers based in South Africa

Name: Renewable energy system designers 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 551 companies tracked

RevenueBase identified 551 renewable energy system designers headquartered in South Africa as of September 2026 and tracks 3,839 professional contacts across them, including 1,292 with verified work emails. Johannesburg is the largest hub.

This list covers renewable energy system designers 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

551Companies

3,839Contacts tracked

1,292Verified emails

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The 25 largest renewable energy system designers based in South Africa

Ranked by team size

Top 25 of 551 renewable energy system designers 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 renewable energy system designers: 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	Tractionel Enterprise	Indirect evidence	Roodepoort, South AfricaHQ checked Sep 17, 2026	501-1,000	163 contacts →
	Indirect evidence “Established in 1982, Tractionel Enterprise is a 100% Black-Owned Level 1 Electrical Construction Company with an outstanding track record in the design, supply, construction and…” Source: RevenueBase Database · checked Sep 17, 2026
2	Stage Zero	Partial evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	201-500	162 contacts →
	Partial evidence “Stage Zero – Solar & Backup Power Solutions At Stage Zero, we help South Africans achieve energy independence, saving on their electricity bills and protect against load shedding.” Source: RevenueBase Database · checked Sep 17, 2026
3	Solareff	Strong evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	51-200	128 contacts →
	Strong evidence “Solareff is a specialist South African-based renewable energy solutions company, with a proven track record of installing medium to large-scale rooftop and ground-mounted Solar…” Source: RevenueBase Database · checked Sep 17, 2026
4	ABC Solar SA	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 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 17, 2026
5	NEW Planet	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	201-500	113 contacts →
	Indirect evidence “We are New Planet, a leading Green Tech company, inspiring people to #LiveANewWay through sustainable solutions for a New Planet.” Source: RevenueBase Database · checked Sep 17, 2026
6	Gosolr	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	51-200	112 contacts →
	Indirect evidence “GoSolr is here to power your life.” Source: RevenueBase Database · checked Sep 17, 2026
7	Wetility	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 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 17, 2026
8	MOTLA	Partial evidence	City Of Tshwane, South AfricaHQ checked Sep 17, 2026	51-200	82 contacts →
	Partial evidence “South Africa's energy future is being built, one engineered solution at a time.” Source: RevenueBase Database · checked Sep 17, 2026
9	Alumo Energy	Indirect evidence	Pretoria, South AfricaHQ checked Sep 17, 2026	201-500	79 contacts →
	Indirect evidence “We're not your average solar company.” Source: RevenueBase Database · checked Sep 17, 2026
10	GC Solar	Strong evidence	Centurion, South AfricaHQ checked Sep 17, 2026	11-50	47 contacts →
	Strong evidence “GC Solar is a leading South African renewable energy system supplier.” Source: RevenueBase Database · checked Sep 17, 2026
11	NEW Southern Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	11-50	44 contacts →
	Partial evidence “Click the at the top right hand of this page to follow us, or visit New Southern Energy (N.S.E) is an African company based in South Africa.” Source: RevenueBase Database · checked Sep 17, 2026
12	Genergy South Africa	Strong evidence	Port Elizabeth, South AfricaHQ checked Sep 17, 2026	51-200	43 contacts →
	Strong evidence “Genergy is a renewable energy company with a National Footprint and its Head Quarters based in Gqeberha.” Source: RevenueBase Database · checked Sep 17, 2026
13	Eversolar	Indirect evidence	City Of Tshwane, South AfricaHQ checked Sep 17, 2026	51-200	42 contacts →
	Indirect evidence “We are an engineering, procurement and construction management company, with a commitment towards excellence and with the experience to serve the market with turn-key solar PV and…” Source: RevenueBase Database · checked Sep 17, 2026
14	Khusela Energies	Strong evidence	Jeffreys Bay, South AfricaHQ checked Sep 17, 2026	11-50	42 contacts →
	Strong evidence “KHUSELA ENERGIES is a company based in Jeffreys Bay, Eastern Cape that specialises in the construction, maintenance and operational support of renewable energy assets.” Source: RevenueBase Database · checked Sep 17, 2026
15	Harmattan Renewables	Partial evidence	Johannesburg, South AfricaHQ checked Sep 17, 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 17, 2026
16	Emergent Energy	Strong evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	11-50	34 contacts →
	Strong evidence “At Emergent Energy, we believe energy investments should be clear, simple, and designed for long-term value.” Source: RevenueBase Database · checked Sep 17, 2026
17	Decentral Energy	Partial evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	11-50	33 contacts →
	Partial evidence “Since 2009, Decentral has been providing enduring energy solutions to the commercial, industrial, and residential sectors in South Africa.” Source: RevenueBase Database · checked Sep 17, 2026
18	Impower PTY LTD	Strong evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	11-50	33 contacts →
	Strong evidence “Founded in 2014, IMPOWER Pty Ltd (formerly All Power Systems) is a leading engineering, procurement and project management contractor (EPCM) operating in the solar and energy…” Source: RevenueBase Database · checked Sep 17, 2026
19	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
20	Solink	Strong evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	51-200	27 contacts →
	Strong evidence “SOLINK is a leading technical advisor and project facilitator in the renewable energy sector.” Source: RevenueBase Database · checked Sep 17, 2026
21	Solar Energy Africa	Strong evidence	Stellenbosch, South AfricaHQ checked Sep 17, 2026	11-50	27 contacts →
	Strong evidence “Solar Energy Africa is a multi-disciplinary engineering company and renewable energy solutions provider.” Source: RevenueBase Database · checked Sep 17, 2026
22	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
23	LTM Energy PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	201-500	26 contacts →
	Partial evidence “LTM Energy is an Energy Services Company (ESCO) with a unique blend of skills and experience obtained primarily in the energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
24	Joule Energy Solutions PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	11-50	24 contacts →
	Partial evidence “Joule Energy Solutions is a forward-thinking dynamic company, who is on a mission to help solve the energy crisis in South Africa.” Source: RevenueBase Database · checked Sep 17, 2026
25	Infoled	Partial evidence	Montague Gardens, South AfricaHQ checked Sep 17, 2026	11-50	24 contacts →
	Partial evidence “INFOLED is an experienced and progressive Energy Solutions Company and a recognized leader in the project development and energy consulting services industry.” 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: renewable energy system designers. 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 renewable energy system designers.
Partial evidence: Its own public description names part of renewable energy system designers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name renewable energy system designers. 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 551 renewable energy system designers based in South Africa

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Renewable energy system designers based in South Africa at a glance

As of Sep 17, 2026

33.7%Verified-email coverage

7.0Average contacts per company

1-10Median size (employees)

17.4%Largest-city concentration · Johannesburg

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

287

11-50

210

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 551 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 renewable energy system designers, 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 “renewable energy system designers”. 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 renewable energy system designers), 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 renewable energy system designers, 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, 1,292 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.

Renewable energy system designers by metro

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 renewable energy system designers, 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 renewable energy system designers are there based in South Africa?

RevenueBase identified 551 renewable energy system designers 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?

Tractionel Enterprise, headquartered in Roodepoort, tops this list with the largest team on record.

Which city has the most renewable energy system designers?

Johannesburg leads with 96 headquartered companies, followed by Cape Town (89) and Pretoria (41).

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 1,292 verified decision-maker contacts tracked across these 551 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.