Company lists · Data refreshed September 2026

Top 25 Solar energy contractors based in South Africa

Name: Solar energy contractors based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 18, 2026 695 companies tracked

RevenueBase identified 695 solar energy contractors headquartered in South Africa as of September 2026 and tracks 4,179 professional contacts across them, including 1,324 with verified work emails. Johannesburg is the largest hub.

This list covers solar energy contractors 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 18, 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 18, 2026 86% judged on-target in blind review

695Companies

4,179Contacts tracked

1,324Verified emails

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The 25 largest solar energy contractors based in South Africa

Ranked by team size

Top 25 of 695 solar energy contractors based in South Africa, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to solar energy contractors: 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	Herholdt's Group	Partial evidence	Bloemfontein, South AfricaHQ checked Sep 18, 2026	201-500	208 contacts →
	Partial evidence “Cultivating Sustainable Energy Solutions Nationwide, Herholdt’s Group is your premier importer and wholesaler of leading renewable energy and electrical brands.” Source: RevenueBase Database · checked Sep 18, 2026
2	Diesel Electric Services PTY LTD	Indirect evidence	Booysens, South AfricaHQ checked Sep 18, 2026	501-1,000	207 contacts →
	Indirect 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 18, 2026
3	Stage Zero	Strong evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	201-500	162 contacts →
	Strong 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 18, 2026
4	Solareff	Strong evidence	Johannesburg, South AfricaHQ checked Sep 18, 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 18, 2026
5	ABC Solar SA	Partial evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	201-500	122 contacts →
	Partial evidence “At ABC Solar, we do more than deliver solar infrastructure; we engineer certainty.” Source: RevenueBase Database · checked Sep 18, 2026
6	NEW Planet	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 18, 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 18, 2026
7	Gosolr	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	51-200	112 contacts →
	Indirect evidence “GoSolr is here to power your life.” Source: RevenueBase Database · checked Sep 18, 2026
8	Wetility	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 18, 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 18, 2026
9	MOTLA	Partial evidence	City Of Tshwane, South AfricaHQ checked Sep 18, 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 18, 2026
10	Alumo Energy	Partial evidence	Pretoria, South AfricaHQ checked Sep 18, 2026	201-500	79 contacts →
	Partial evidence “We're not your average solar company.” Source: RevenueBase Database · checked Sep 18, 2026
11	Valley Electrical Contractors PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	201-500	63 contacts →
	Partial evidence “Founded in Valley Electrical Contractors has, and continues to strive for excellence in all of the work that we do; whether it be Commercial, Industrial or Residential.” Source: RevenueBase Database · checked Sep 18, 2026
12	Lumax Energy PTY LTD	Partial evidence	Midrand, South AfricaHQ checked Sep 18, 2026	51-200	59 contacts →
	Partial evidence “Lumax Energy delivers cutting-edge clean energy technology at highly competitive prices.” Source: RevenueBase Database · checked Sep 18, 2026
13	GC Solar	Strong evidence	Centurion, South AfricaHQ checked Sep 18, 2026	11-50	47 contacts →
	Strong evidence “GC Solar is a leading South African renewable energy system supplier.” Source: RevenueBase Database · checked Sep 18, 2026
14	Eversolar	Partial evidence	City Of Tshwane, South AfricaHQ checked Sep 18, 2026	51-200	42 contacts →
	Partial 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 18, 2026
15	Khusela Energies	Partial evidence	Jeffreys Bay, South AfricaHQ checked Sep 18, 2026	11-50	42 contacts →
	Partial 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 18, 2026
16	Dorman Energy PTY LTD	Strong evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	201-500	39 contacts →
	Strong evidence “Est Dorman Energy is a family driven Solar and battery initiative bringing high quality Renewable Energy solutions to Southern Africa.” Source: RevenueBase Database · checked Sep 18, 2026
17	Renenergy Africa	Indirect evidence	Stellenbosch, South AfricaHQ checked Sep 18, 2026	11-50	38 contacts →
	Indirect evidence “Electrifying change for businesses.” Source: RevenueBase Database · checked Sep 18, 2026
18	Greensun Renewable Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	11-50	37 contacts →
	Partial evidence “GreenSun is your trusted, award-winning solar EPC partner in South Africa since 2011.” Source: RevenueBase Database · checked Sep 18, 2026
19	Emergent Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	11-50	34 contacts →
	Partial evidence “At Emergent Energy, we believe energy investments should be clear, simple, and designed for long-term value.” Source: RevenueBase Database · checked Sep 18, 2026
20	Impower PTY LTD	Strong evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
21	Solar Energy Africa	Strong evidence	Stellenbosch, South AfricaHQ checked Sep 18, 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 18, 2026
22	Advanced Energies Africa	Strong evidence	Paarl, South AfricaHQ checked Sep 18, 2026	1-10	24 contacts →
	Strong evidence “We install custom-designed and operational-ready solar and supplementary energy solutions to the residential sector, agriculture, commerce, industry, mining, and solar PV parks…” Source: RevenueBase Database · checked Sep 18, 2026
23	Infoled	Partial evidence	Montague Gardens, South AfricaHQ checked Sep 18, 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 18, 2026
24	GET OFF Grid	Partial evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	11-50	23 contacts →
	Partial evidence “It now makes economic and environmental sense for businesses to invest in Solar and start saving money as they pay less for power.” Source: RevenueBase Database · checked Sep 18, 2026
25	Journey2green	Partial evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	11-50	22 contacts →
	Partial 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 18, 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: solar energy contractors. 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 solar energy contractors.
Partial evidence: Its own public description names part of solar energy contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name solar energy contractors. 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 695 solar energy contractors based in South Africa

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Solar energy contractors based in South Africa at a glance

As of Sep 18, 2026

31.7%Verified-email coverage

6.0Average contacts per company

1-10Median size (employees)

18.1%Largest-city concentration · Johannesburg

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

377

11-50

258

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 695 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 solar energy contractors, 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 “solar energy contractors”. 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 solar energy contractors), 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 solar energy contractors, 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, 1,324 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 18, 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.

Solar energy contractors by metro

Solar energy contractors in Johannesburg126
Solar energy contractors in Cape Town105
Solar energy contractors in Pretoria48
Solar energy contractors in City Of Tshwane26

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 solar energy contractors, 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 solar energy contractors are there based in South Africa?

RevenueBase identified 695 solar energy contractors 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?

Herholdt's Group, headquartered in Bloemfontein, tops this list with the largest team on record.

Which city has the most solar energy contractors?

Johannesburg leads with 126 headquartered companies, followed by Cape Town (105) and Pretoria (48).

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 1,324 verified decision-maker contacts tracked across these 695 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 18, 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.