Company lists · Data refreshed September 2026

Top 25 Solar water heater installation companies based in South Africa

Name: Solar water heater installation 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 302 companies tracked

RevenueBase identified 302 solar water heater installation companies headquartered in South Africa as of September 2026 and tracks 1,109 professional contacts across them, including 224 with verified work emails. Johannesburg is the largest hub.

This list covers solar water heater installation 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

302Companies

1,109Contacts tracked

224Verified emails

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The 25 largest solar water heater installation companies based in South Africa

Ranked by team size

Top 25 of 302 solar water heater installation 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 water heater installation 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	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
2	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
3	Sparki Solar	Strong evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	51-200	22 contacts →
	Strong 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
4	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
5	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
6	Metsolar PTY LTD	Partial evidence	Roodepoort, South AfricaHQ checked Sep 18, 2026	1-10	16 contacts →
	Partial evidence “MetSolar is committed to providing top quality sustainable Solar PV solutions, specializing in turnkey grid-tied solar PV systems, solar off-grid systems and solar diesel hybrid…” Source: RevenueBase Database · checked Sep 18, 2026
7	Micasa Energy Solutions	Strong evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
8	Solarvest	Indirect evidence	Shakashead, South AfricaHQ checked Sep 18, 2026	11-50	13 contacts →
	Indirect evidence “We provide renewable energy solutions for C&I & residential sectors.” Source: RevenueBase Database · checked Sep 18, 2026
9	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
10	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
11	Asiye Green	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 18, 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 18, 2026
12	Eesco Heat Pumps	Strong evidence	Johannesburg, South AfricaHQ checked Sep 18, 2026	11-50	9 contacts →
	Strong 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
13	Nupower Solar	Partial evidence	Alberton, South AfricaHQ checked Sep 18, 2026	51-200	9 contacts →
	Partial 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 18, 2026
14	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
15	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
16	Technosolarsa	Strong evidence	Durbanville, South AfricaHQ checked Sep 18, 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 18, 2026
17	Megawatt Projects	Partial evidence	Pretoria, South AfricaHQ checked Sep 18, 2026	1-10	8 contacts →
	Partial 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 18, 2026
18	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
19	Awpower	Strong evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	11-50	7 contacts →
	Strong evidence “AWPower is a solar & water engineering solutions provider that provides customized photovoltaic energy solutions and monitoring and maintenance for residential and commercial…” Source: RevenueBase Database · checked Sep 18, 2026
20	Amber Energy PTY Ltd. South Africa	Partial evidence	Pretoria, South AfricaHQ checked Sep 18, 2026	1-10	7 contacts →
	Partial evidence “Amber Energy delivers high quality, affordable solar solutions for residential homes and businesses within the public and private sectors in South Africa.” Source: RevenueBase Database · checked Sep 18, 2026
21	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
22	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
23	LIT Solutions	Partial evidence	Durban, South AfricaHQ checked Sep 18, 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 18, 2026
24	RED Engineering PTY LTD	Strong evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	1-10	6 contacts →
	Strong evidence “Solar PV Systems - Analysis, Engineering, Design, Procurement, Installation of PV systems- Monitoring - Remote monitoring of PV Systems- PV System Service & Support - Contracting…” 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 water heater installation 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 water heater installation companies.
Partial evidence: Its own public description names part of solar water heater installation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name solar water heater installation 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 302 solar water heater installation companies based in South Africa

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Solar water heater installation companies based in South Africa at a glance

As of Sep 18, 2026

20.2%Verified-email coverage

3.7Average contacts per company

1-10Median size (employees)

17.9%Largest-city concentration · Johannesburg

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

162

11-50

117

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 302 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 water heater installation 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 water heater installation 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 water heater installation 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 water heater installation 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, 224 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 water heater installation companies by metro

Solar water heater installation companies in Johannesburg54
Solar water heater installation companies in Cape Town43

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 water heater installation 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 water heater installation companies are there based in South Africa?

RevenueBase identified 302 solar water heater installation 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?

Alumo Energy, headquartered in Pretoria, tops this list with the largest team on record.

Which city has the most solar water heater installation companies?

Johannesburg leads with 54 headquartered companies, followed by Cape Town (43) and Pretoria (22).

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 224 verified decision-maker contacts tracked across these 302 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.