Company lists · Data refreshed September 2026

Top 25 Industrial solar thermal companies based in South Africa

Name: Industrial solar thermal 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 258 companies tracked

RevenueBase identified 258 company matches for industrial solar thermal companies associated with South Africa as of September 2026 and tracks 1,336 professional contacts across them, including 345 with verified work emails. Cape Town is the largest hub.

This list covers company matches for industrial solar thermal companies associated with South Africa, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

258Companies

1,336Contacts tracked

345Verified emails

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The 25 largest industrial solar thermal companies based in South Africa

Ranked by team size

Top 25 of 258 company matches for industrial solar thermal companies based in South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Solareff	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	51-200	128 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Alumo Energy	Exact match	Pretoria, South AfricaHQ recorded Sep 17, 2026	201-500	79 contacts →
	Exact match “We're not your average solar company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Artsolar	Exact match	Pinetown, South AfricaHQ recorded Sep 17, 2026	51-200	69 contacts →
	Exact match “ARTsolar proudly stands for African Renewable Technologies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Genergy South Africa	Exact match	Port Elizabeth, South AfricaHQ recorded Sep 17, 2026	51-200	43 contacts →
	Exact match “Genergy is a renewable energy company with a National Footprint and its Head Quarters based in Gqeberha.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	Solar Energy Africa	Exact match	Stellenbosch, South AfricaHQ recorded Sep 17, 2026	11-50	27 contacts →
	Exact match “Solar Energy Africa is a multi-disciplinary engineering company and renewable energy solutions provider.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Advanced Energies Africa	Exact match	Paarl, South AfricaHQ recorded Sep 17, 2026	1-10	24 contacts →
	Exact match “We install custom-designed and operational-ready solar and supplementary energy solutions to the residential sector, agriculture, commerce, industry, mining, and solar PV parks…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Sparki Solar	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	51-200	22 contacts →
	Exact match “Sparki is a rapidly growing solar installation company that aims to provide high-quality.compliant solar installations to homeowners, and business alike.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Bidvest Renewable Solutions	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	51-200	19 contacts →
	Exact match “Bidvest Renewable Solutions offers a wide range of solutions such as Grid-tie PV, Hybrid and offgrid solar systems.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Specialized Solar Systems	Exact match	George, South AfricaHQ recorded Sep 17, 2026	51-200	19 contacts →
	Exact match “At Specialized Solar Systems, we are the epitome of comprehensive solar power solutions.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Power Partners Group	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “Power Partners Group was established in 2019.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Renu Solar	Exact match	Hillcrest, South AfricaHQ recorded Sep 17, 2026	11-50	17 contacts →
	Exact match “ESTABLISHED IN 2008 With over a decade of experience, Renu Solar brings a wealth of knowledge and expertise to the renewable industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Micasa Energy Solutions	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	51-200	14 contacts →
	Exact match “We offer Integrated Smart and Sustainable Energy solutions that include Solar PV, Water, and Lighting solutions for the Commercial, Industrial, Agricultural and Residential…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Solarvest	Exact match	Shakashead, South AfricaHQ recorded Sep 17, 2026	11-50	13 contacts →
	Exact match “We provide renewable energy solutions for C&I & residential sectors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	Stiebel Eltron Southern Africa	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	1,001-5,000	13 contacts →
	Exact match “STIEBEL ELTRON, founded in 1924, is one of the leading companies in the market for building services and renewable energies.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Treetops Renewable Energy Systems	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	11-50	10 contacts →
	Exact match “We are providing Turnkey Solar Systems for our Residential, Commercial and Industrial / Agricultural customers.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Asiye Green	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	1-10	10 contacts →
	Exact match “Asiye Green has extensive managerial and technical experience in delivering successful projects in South Africa.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Eesco Heat Pumps	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “At EESCO we are primarily focused on the supply and installation of our locally manufactured heat pumps.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Nupower Solar	Exact match	Alberton, South AfricaHQ recorded Sep 17, 2026	51-200	9 contacts →
	Exact match “NuPower Solar is the a leader in supplying world class alternative energy solutions to the residential and commercial industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	Solar Heat Exchangers PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “Established in 1987, Solar Heat exchangers specialized in Solar Hot Water system manufacturing and installations.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Pure Electrical Solutions Gauteng	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “Pure Electrical Solutions is a leading solar company dedicated to providing innovative and sustainable energy solutions for residential, industrial, and commercial sectors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	Technosolarsa	Exact match	Durbanville, South AfricaHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Northface Solar	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	11-50	8 contacts →
	Exact match “Northface Solar is a commercial solar EPC and battery energy storage (BESS) specialist delivering engineered energy systems for developers, asset owners, and operating businesses…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	MLT Power	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	11-50	8 contacts →
	Exact match “MLT Power distributes and installs solar back up and grid tied inverter systems as full turn-key solutions to your alternative power needs.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Selec Group	Exact match	City Of Tshwane, South AfricaHQ recorded Sep 17, 2026	11-50	8 contacts →
	Exact match “Our electrical services take care of solar installations, smart home systems, industrial electrical installations, and property developers.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Megawatt Projects	Exact match	Pretoria, South AfricaHQ recorded Sep 17, 2026	1-10	8 contacts →
	Exact match “We are a leading force in the electrical and solar industries, committed to delivering innovative solutions that drive success and sustainability.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “industrial solar thermal companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 258 industrial solar thermal companies based in South Africa

See the full list, filter by size, metro and specialty, and access 345 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Industrial solar thermal companies based in South Africa at a glance

As of Sep 17, 2026

25.8%Verified-email coverage

5.2Average contacts per company

1-10Median size (employees)

17.8%Largest-city concentration · Cape Town

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

130

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 258 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with South Africa whose business descriptions match “industrial solar thermal companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 345 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “industrial solar thermal companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many industrial solar thermal companies are there based in South Africa?

RevenueBase identified 258 company matches for industrial solar thermal companies associated with South Africa as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Solareff tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most industrial solar thermal companies?

Cape Town leads with 46 company records, followed by Johannesburg (44) and Pretoria (17).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 345 professional contacts with verified work emails tracked across these 258 companies; direct dials are available where recorded.

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 SmartSearch, 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.