Company lists · Data refreshed September 2026

Top 25 Industrial process heat solar companies based in South Africa

Name: Industrial process heat solar companies 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 204 companies tracked

RevenueBase identified 204 industrial process heat solar companies headquartered in South Africa as of September 2026 and tracks 1,070 professional contacts across them, including 290 with verified work emails. Cape Town is the largest hub.

This list covers industrial process heat solar companies 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

204Companies

1,070Contacts tracked

290Verified emails

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The 25 largest industrial process heat solar companies based in South Africa

Ranked by team size

Top 25 of 204 industrial process heat solar companies 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 process heat solar companies: 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	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
2	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
3	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
4	Genergy South Africa	Indirect evidence	Port Elizabeth, South AfricaHQ checked Sep 17, 2026	51-200	43 contacts →
	Indirect 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
5	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
6	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
7	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
8	Renu Solar	Partial evidence	Hillcrest, South AfricaHQ checked Sep 17, 2026	11-50	17 contacts →
	Partial evidence “ESTABLISHED IN 2008 With over a decade of experience, Renu Solar brings a wealth of knowledge and expertise to the renewable industry.” Source: RevenueBase Database · checked Sep 17, 2026
9	Micasa Energy Solutions	Strong evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	51-200	14 contacts →
	Strong evidence “We offer Integrated Smart and Sustainable Energy solutions that include Solar PV, Water, and Lighting solutions for the Commercial, Industrial, Agricultural and Residential…” Source: RevenueBase Database · checked Sep 17, 2026
10	Solarvest	Indirect evidence	Shakashead, South AfricaHQ checked Sep 17, 2026	11-50	13 contacts →
	Indirect evidence “We provide renewable energy solutions for C&I & residential sectors.” Source: RevenueBase Database · checked Sep 17, 2026
11	Stiebel Eltron Southern Africa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	1,001-5,000	13 contacts →
	Indirect evidence “STIEBEL ELTRON, founded in 1924, is one of the leading companies in the market for building services and renewable energies.” Source: RevenueBase Database · checked Sep 17, 2026
12	Treetops Renewable Energy Systems	Strong evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	11-50	10 contacts →
	Strong evidence “We are providing Turnkey Solar Systems for our Residential, Commercial and Industrial / Agricultural customers.” Source: RevenueBase Database · checked Sep 17, 2026
13	Asiye Green	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	1-10	10 contacts →
	Indirect evidence “Asiye Green has extensive managerial and technical experience in delivering successful projects in South Africa.” Source: RevenueBase Database · checked Sep 17, 2026
14	Nupower Solar	Strong evidence	Alberton, South AfricaHQ checked Sep 17, 2026	51-200	9 contacts →
	Strong evidence “NuPower Solar is the a leader in supplying world class alternative energy solutions to the residential and commercial industries.” Source: RevenueBase Database · checked Sep 17, 2026
15	Pure Electrical Solutions Gauteng	Strong evidence	Johannesburg, South AfricaHQ checked Sep 17, 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 17, 2026
16	Solar Heat Exchangers PTY LTD	Strong evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	11-50	9 contacts →
	Strong evidence “Established in 1987, Solar Heat exchangers specialized in Solar Hot Water system manufacturing and installations.” Source: RevenueBase Database · checked Sep 17, 2026
17	Technosolarsa	Strong evidence	Durbanville, South AfricaHQ checked Sep 17, 2026	11-50	9 contacts →
	Strong evidence “Industrial experience: Our team’s expertise is built upon years of successfully implementing solar projects, including the installation of one of Africa’s most notable rooftop…” Source: RevenueBase Database · checked Sep 17, 2026
18	Megawatt Projects	Strong evidence	Pretoria, South AfricaHQ checked Sep 17, 2026	1-10	8 contacts →
	Strong evidence “We are a leading force in the electrical and solar industries, committed to delivering innovative solutions that drive success and sustainability.” Source: RevenueBase Database · checked Sep 17, 2026
19	Sunworx Photovoltaic Systems	Partial evidence	Rivonia, South AfricaHQ checked Sep 17, 2026	51-200	8 contacts →
	Partial evidence “We provide reliable solar power solutions for homeowners and businesses.” Source: RevenueBase Database · checked Sep 17, 2026
20	Applied Heat PTY LTD	Strong evidence	Sandton, South AfricaHQ checked Sep 17, 2026	11-50	8 contacts →
	Strong evidence “Applied Heat provides advanced heating solutions to industries across the globe, including agriculture, automotive, chemical, mining, food and beverage, and more.” Source: RevenueBase Database · checked Sep 17, 2026
21	Orka Solar South Africa	Partial evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	11-50	7 contacts →
	Partial evidence “At Orka Solar, we help South African businesses and farms cut energy costs and become less dependent on the grid.” Source: RevenueBase Database · checked Sep 17, 2026
22	Elite Energy Solutions	Partial evidence	Boksburg, South AfricaHQ checked Sep 17, 2026	11-50	7 contacts →
	Partial evidence “Elite Energy Solutions is one of South Africa's leading installers of solar energy systems.” Source: RevenueBase Database · checked Sep 17, 2026
23	LIT Solutions	Partial evidence	Durban, South AfricaHQ checked Sep 17, 2026	1-10	6 contacts →
	Partial evidence “LIT Solutions is your partner in harnessing the power of the sun, offering customized solar PV solutions that drive efficiency, savings, and sustainability for commercial and…” Source: RevenueBase Database · checked Sep 17, 2026
24	Solar Solutions Engineering SA	Partial evidence	Maitland, South AfricaHQ checked Sep 17, 2026	11-50	6 contacts →
	Partial evidence “With a dedication to renewable energy, Solar Solutions Engineering SA (SSESA) expertly brings turnkey solar energy systems to commercial, agricultural, health, mining sectors…” Source: RevenueBase Database · checked Sep 17, 2026
25	Misolar Trading	Indirect evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	11-50	5 contacts →
	Indirect evidence “MISOLAR TRADING is a company based out of the Western Cape, South Africa.” 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 process heat solar companies. 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 process heat solar companies.
Partial evidence: Its own public description names part of industrial process heat solar companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name industrial process heat solar companies. 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 204 industrial process heat solar companies based in South Africa

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Industrial process heat solar companies based in South Africa at a glance

As of Sep 17, 2026

27.1%Verified-email coverage

5.2Average contacts per company

1-10Median size (employees)

19.1%Largest-city concentration · Cape Town

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

105

11-50

51-200

201-500

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 204 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 process heat solar companies, 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 process heat solar companies”. 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 process heat solar companies), 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 process heat solar companies, 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, 290 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 process heat solar companies by metro

Industrial process heat solar companies in Cape Town39
Industrial process heat solar companies in Johannesburg34

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 process heat solar companies, 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 process heat solar companies are there based in South Africa?

RevenueBase identified 204 industrial process heat solar companies 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?

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

Which city has the most industrial process heat solar companies?

Cape Town leads with 39 headquartered companies, followed by Johannesburg (34) and Pretoria (13).

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 290 verified decision-maker contacts tracked across these 204 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.