Company lists · Data refreshed September 2026

Top 25 Industrial solar installers based in South Africa

Name: Industrial solar installers 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 537 companies tracked

RevenueBase identified 537 industrial solar installers headquartered in South Africa as of September 2026 and tracks 3,509 professional contacts across them, including 1,177 with verified work emails. Johannesburg is the largest hub.

This list covers industrial solar installers 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

537Companies

3,509Contacts tracked

1,177Verified emails

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The 25 largest industrial solar installers based in South Africa

Ranked by team size

Top 25 of 537 industrial solar installers 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 industrial solar installers: 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	Indirect evidence	Bloemfontein, South AfricaHQ checked Sep 17, 2026	201-500	208 contacts →
	Indirect 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 17, 2026
2	Diesel Electric Services PTY LTD	Indirect evidence	Booysens, South AfricaHQ checked Sep 17, 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 17, 2026
3	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
4	Solareff	Partial evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	51-200	128 contacts →
	Partial 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
5	ABC Solar SA	Partial evidence	Johannesburg, South AfricaHQ checked Sep 17, 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 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	Segensolar South Africa	Partial evidence	Northriding, South AfricaHQ checked Sep 17, 2026	51-200	98 contacts →
	Partial evidence “SegenSolar (Pty) Ltd is a South African subsidiary of the UK's largest photovoltaic specialist wholesaler and distributor, Segen Ltd, selling solar panels, grid-tied inverters…” Source: RevenueBase Database · checked Sep 17, 2026
8	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
9	Alumo Energy	Partial evidence	Pretoria, South AfricaHQ checked Sep 17, 2026	201-500	79 contacts →
	Partial evidence “We're not your average solar company.” Source: RevenueBase Database · checked Sep 17, 2026
10	Artsolar	Indirect evidence	Pinetown, South AfricaHQ checked Sep 17, 2026	51-200	69 contacts →
	Indirect evidence “ARTsolar proudly stands for African Renewable Technologies.” Source: RevenueBase Database · checked Sep 17, 2026
11	Valley Electrical Contractors PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 17, 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 17, 2026
12	Lumax Energy PTY LTD	Indirect evidence	Midrand, South AfricaHQ checked Sep 17, 2026	51-200	59 contacts →
	Indirect evidence “Lumax Energy delivers cutting-edge clean energy technology at highly competitive prices.” Source: RevenueBase Database · checked Sep 17, 2026
13	Eversolar	Partial evidence	City Of Tshwane, South AfricaHQ checked Sep 17, 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 17, 2026
14	Renenergy Africa	Indirect evidence	Stellenbosch, South AfricaHQ checked Sep 17, 2026	11-50	38 contacts →
	Indirect evidence “Electrifying change for businesses.” Source: RevenueBase Database · checked Sep 17, 2026
15	Greensun Renewable Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 17, 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 17, 2026
16	Caracal Engineering	Partial evidence	Johannesburg, South AfricaHQ checked Sep 17, 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 17, 2026
17	Impower PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	11-50	33 contacts →
	Partial 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
18	Kathea Energy	Partial evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	11-50	29 contacts →
	Partial evidence “Kathea Energy is one of the leading distributors of solar panels, inverters, batteries (and associated services) in Southern Africa.” Source: RevenueBase Database · checked Sep 17, 2026
19	Solar Energy Africa	Partial evidence	Stellenbosch, South AfricaHQ checked Sep 17, 2026	11-50	27 contacts →
	Partial evidence “Solar Energy Africa is a multi-disciplinary engineering company and renewable energy solutions provider.” Source: RevenueBase Database · checked Sep 17, 2026
20	Advanced Energies Africa	Partial evidence	Paarl, South AfricaHQ checked Sep 17, 2026	1-10	24 contacts →
	Partial 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 17, 2026
21	Journey2green	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	11-50	22 contacts →
	Indirect 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 17, 2026
22	TSG South-Africa	Indirect evidence	Alberton, South AfricaHQ checked Sep 17, 2026	201-500	22 contacts →
	Indirect evidence “TSG is the leading technical services provider for responsible mobility, operating in more than 30 countries across Europe and Africa, including South Africa.” Source: RevenueBase Database · checked Sep 17, 2026
23	Sparki Solar	Partial evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	51-200	22 contacts →
	Partial evidence “Sparki is a rapidly growing solar installation company that aims to provide high-quality.compliant solar installations to homeowners, and business alike.” Source: RevenueBase Database · checked Sep 17, 2026
24	Bidvest Renewable Solutions	Partial evidence	Johannesburg, South AfricaHQ checked Sep 17, 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 17, 2026
25	Forest Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	11-50	19 contacts →
	Partial evidence “We are an Energy Solutions Company (ESC) providing advanced solar and Battery Energy Storage System (BESS) solutions to our clients through engineering, financial modelling, and…” 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: industrial solar installers. 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 industrial solar installers.
Partial evidence: Its own public description names part of industrial solar installers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial solar installers. 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 537 industrial solar installers based in South Africa

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Industrial solar installers based in South Africa at a glance

As of Sep 17, 2026

33.5%Verified-email coverage

6.5Average contacts per company

1-10Median size (employees)

18.1%Largest-city concentration · Johannesburg

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

285

11-50

200

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 537 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 industrial solar installers, 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 “industrial solar installers”. 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 industrial solar installers), 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 industrial solar installers, 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, 1,177 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.

Industrial solar installers 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 industrial solar installers, 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 industrial solar installers are there based in South Africa?

RevenueBase identified 537 industrial solar installers 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 industrial solar installers?

Johannesburg leads with 97 headquartered companies, followed by Cape Town (79) and Pretoria (37).

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 1,177 verified decision-maker contacts tracked across these 537 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.