Company lists · Data refreshed September 2026

Top 25 Solar heat storage companies based in South Africa

Name: Solar heat storage companies 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 179 companies tracked

RevenueBase identified 179 solar heat storage companies headquartered in South Africa as of September 2026 and tracks 1,012 professional contacts across them, including 293 with verified work emails. Cape Town is the largest hub.

This list covers solar heat storage 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 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

179Companies

1,012Contacts tracked

293Verified emails

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The 25 largest solar heat storage companies based in South Africa

Ranked by team size

Top 25 of 179 solar heat storage companies 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 heat storage 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 18, 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 18, 2026
2	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
3	Genergy South Africa	Indirect evidence	Port Elizabeth, South AfricaHQ checked Sep 18, 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 18, 2026
4	Advanced Energies Africa	Partial evidence	Paarl, South AfricaHQ checked Sep 18, 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 18, 2026
5	Sparki Solar	Partial evidence	Johannesburg, South AfricaHQ checked Sep 18, 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 18, 2026
6	Kathu Solar Park	Strong evidence	Gamagara, South AfricaHQ checked Sep 18, 2026	11-50	21 contacts →
	Strong evidence “Kathu Solar Park is a 100 MW Concentrated Solar Power project with parabolic trough technology and equipped with a molten salt storage system that allows 4.5 hours of thermal…” Source: RevenueBase Database · checked Sep 18, 2026
7	Bidvest Renewable Solutions	Partial evidence	Johannesburg, South AfricaHQ checked Sep 18, 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 18, 2026
8	Forest Energy	Strong evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	11-50	19 contacts →
	Strong 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 18, 2026
9	Renu Solar	Partial evidence	Hillcrest, South AfricaHQ checked Sep 18, 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 18, 2026
10	Micasa Energy Solutions	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	51-200	14 contacts →
	Partial 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 18, 2026
11	Stiebel Eltron Southern Africa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 18, 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 18, 2026
12	Bright Light	Partial evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	11-50	12 contacts →
	Partial evidence “Solar energy is becoming increasingly popular within Sectional Title Schemes and Homeowners' Associations (Community schemes), who are looking for alternatives to carbon‑based…” Source: RevenueBase Database · checked Sep 18, 2026
13	Brightblack Energy	Partial evidence	Stellenbosch, South AfricaHQ checked Sep 18, 2026	11-50	12 contacts →
	Partial evidence “BrightBlack Energy is a South African energy solutions provider specialising in the design, procurement, construction, finance, operation and management of solar PV and battery…” Source: RevenueBase Database · checked Sep 18, 2026
14	Treetops Renewable Energy Systems	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	11-50	10 contacts →
	Partial evidence “We are providing Turnkey Solar Systems for our Residential, Commercial and Industrial / Agricultural customers.” Source: RevenueBase Database · checked Sep 18, 2026
15	Eesco Heat Pumps	Partial evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	11-50	9 contacts →
	Partial evidence “At EESCO we are primarily focused on the supply and installation of our locally manufactured heat pumps.” Source: RevenueBase Database · checked Sep 18, 2026
16	Solar Heat Exchangers PTY LTD	Strong evidence	Johannesburg, South AfricaHQ checked Sep 18, 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 18, 2026
17	Pure Electrical Solutions Gauteng	Partial evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	11-50	9 contacts →
	Partial 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 18, 2026
18	Technosolarsa	Partial evidence	Durbanville, South AfricaHQ checked Sep 18, 2026	11-50	9 contacts →
	Partial 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 18, 2026
19	Northface Solar	Strong evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	11-50	8 contacts →
	Strong evidence “Northface Solar is a commercial solar EPC and battery energy storage (BESS) specialist delivering engineered energy systems for developers, asset owners, and operating businesses…” Source: RevenueBase Database · checked Sep 18, 2026
20	Resurgent Energy PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	11-50	8 contacts →
	Indirect evidence “Resurgent Energy as a turn-key renewable energy solutions developer and product supplier to the logistics, commercial and residential sectors, seeking unique solutions for variety…” Source: RevenueBase Database · checked Sep 18, 2026
21	Sunworx Photovoltaic Systems	Partial evidence	Rivonia, South AfricaHQ checked Sep 18, 2026	51-200	8 contacts →
	Partial evidence “We provide reliable solar power solutions for homeowners and businesses.” Source: RevenueBase Database · checked Sep 18, 2026
22	Sakisa Energy & Technology Group	Partial evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	11-50	8 contacts →
	Partial evidence “Sakisa Energy and Technology Group is a South African-based renewable energy company delivering smart, cost-effective solar solutions for residential, commercial, and industrial…” Source: RevenueBase Database · checked Sep 18, 2026
23	Orka Solar South Africa	Partial evidence	Johannesburg, South AfricaHQ checked Sep 18, 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 18, 2026
24	Elite Energy Solutions	Partial evidence	Boksburg, South AfricaHQ checked Sep 18, 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 18, 2026
25	Solar Solutions Engineering SA	Partial evidence	Maitland, South AfricaHQ checked Sep 18, 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 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 heat storage 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 solar heat storage companies.
Partial evidence: Its own public description names part of solar heat storage companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name solar heat storage 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 179 solar heat storage companies based in South Africa

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Solar heat storage companies based in South Africa at a glance

As of Sep 18, 2026

29.0%Verified-email coverage

5.7Average contacts per company

11-50Median size (employees)

19.0%Largest-city concentration · Cape Town

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

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 179 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 heat storage 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 “solar heat storage 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 solar heat storage 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 solar heat storage 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, 293 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 heat storage companies by metro

Solar heat storage companies in Cape Town34
Solar heat storage companies in Johannesburg33

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 heat storage 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 solar heat storage companies are there based in South Africa?

RevenueBase identified 179 solar heat storage 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 solar heat storage companies?

Cape Town leads with 34 headquartered companies, followed by Johannesburg (33) and Pretoria (10).

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 293 verified decision-maker contacts tracked across these 179 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.