Company lists · Data refreshed September 2026

Top 25 Off-grid energy system providers based in South Africa

Name: Off-grid energy system providers 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 419 companies tracked

RevenueBase identified 419 off-grid energy system providers headquartered in South Africa as of September 2026 and tracks 2,971 professional contacts across them, including 873 with verified work emails. Johannesburg is the largest hub.

This list covers off-grid energy system providers 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

419Companies

2,971Contacts tracked

873Verified emails

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The 25 largest off-grid energy system providers based in South Africa

Ranked by team size

Top 25 of 419 off-grid energy system providers 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 off-grid energy system providers: 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	Barloworld Power	Indirect evidence	Boksburg North, South AfricaHQ checked Sep 17, 2026	201-500	190 contacts →
	Indirect evidence “Barloworld Power has been a CAT Dealer for power products since 1927 and represents CAT, Perkins, and MAK brands.” Source: RevenueBase Database · checked Sep 17, 2026
2	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
3	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
4	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
5	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
6	MOTLA	Partial evidence	City Of Tshwane, South AfricaHQ checked Sep 17, 2026	51-200	82 contacts →
	Partial evidence “South Africa's energy future is being built, one engineered solution at a time.” Source: RevenueBase Database · checked Sep 17, 2026
7	Alumo Energy	Indirect evidence	Pretoria, South AfricaHQ checked Sep 17, 2026	201-500	79 contacts →
	Indirect evidence “We're not your average solar company.” Source: RevenueBase Database · checked Sep 17, 2026
8	Aces Africa	Indirect evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	51-200	54 contacts →
	Indirect evidence “A leading EPC specialising in Solar PV, large-scale BESS, and Building Integrated PV solutions.” Source: RevenueBase Database · checked Sep 17, 2026
9	Rhino Energy Solutions	Partial evidence	Sandton, South AfricaHQ checked Sep 17, 2026	51-200	53 contacts →
	Partial evidence “Rhino Energy is committed to addressing South Africa’s energy crisis and the soaring costs of energy.” Source: RevenueBase Database · checked Sep 17, 2026
10	GC Solar	Strong evidence	Centurion, South AfricaHQ checked Sep 17, 2026	11-50	47 contacts →
	Strong evidence “GC Solar is a leading South African renewable energy system supplier.” Source: RevenueBase Database · checked Sep 17, 2026
11	Bluenova	Strong evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	51-200	44 contacts →
	Strong evidence “The Best in BESS Scalable Energy Storage for Large-Scale Integration Built for EPCs, Contractors & Industrial Leaders Grid-Tied \| Microgrid \| Off-Grid \| Utility-Scale Remote…” Source: RevenueBase Database · checked Sep 17, 2026
12	NEW Southern Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	11-50	44 contacts →
	Partial evidence “Click the at the top right hand of this page to follow us, or visit New Southern Energy (N.S.E) is an African company based in South Africa.” Source: RevenueBase Database · checked Sep 17, 2026
13	Dorman Energy PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	201-500	39 contacts →
	Partial evidence “Est Dorman Energy is a family driven Solar and battery initiative bringing high quality Renewable Energy solutions to Southern Africa.” 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	Powermode	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	51-200	33 contacts →
	Indirect evidence “Powermode stands as a vanguard in delivering uninterrupted power solutions in South Africa.” Source: RevenueBase Database · checked Sep 17, 2026
16	Energenic Holdings	Partial evidence	Roodepoort, South AfricaHQ checked Sep 17, 2026	51-200	30 contacts →
	Partial evidence “Energenic specializes in Power solutions from light switches to solar and everything in between.” Source: RevenueBase Database · checked Sep 17, 2026
17	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
18	Sonnenglas	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	51-200	26 contacts →
	Indirect evidence “Sonnenglas® was born from the idea of bringing safe, solar-powered light to places without reliable electricity.” Source: RevenueBase Database · checked Sep 17, 2026
19	Joule Energy Solutions PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 17, 2026	11-50	24 contacts →
	Partial evidence “Joule Energy Solutions is a forward-thinking dynamic company, who is on a mission to help solve the energy crisis in South Africa.” 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	PSS Africa	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	51-200	24 contacts →
	Indirect evidence “For over 25 years PSS has successfully delivered more than 400MW of power plants, on-time, in-budget and in the most challenging environments in Africa.” Source: RevenueBase Database · checked Sep 17, 2026
22	Bidvest Renewable Solutions	Strong evidence	Johannesburg, South AfricaHQ checked Sep 17, 2026	51-200	19 contacts →
	Strong 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
23	Forest Energy	Strong evidence	Cape Town, South AfricaHQ checked Sep 17, 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 17, 2026
24	Greenhouse	Strong evidence	Centurion, South AfricaHQ checked Sep 17, 2026	11-50	19 contacts →
	Strong evidence “GreenHouse is the leading provider of Premium solar and battery-powered energy systems with more than 15 years of industry experience.” Source: RevenueBase Database · checked Sep 17, 2026
25	Specialized Solar Systems	Partial evidence	George, South AfricaHQ checked Sep 17, 2026	51-200	19 contacts →
	Partial evidence “At Specialized Solar Systems, we are the epitome of comprehensive solar power solutions.” 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: off-grid energy system providers. 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 off-grid energy system providers.
Partial evidence: Its own public description names part of off-grid energy system providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name off-grid energy system providers. 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 419 off-grid energy system providers based in South Africa

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Off-grid energy system providers based in South Africa at a glance

As of Sep 17, 2026

29.4%Verified-email coverage

7.1Average contacts per company

11-50Median size (employees)

20.8%Largest-city concentration · Johannesburg

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

203

11-50

166

51-200

201-500

501-1,000

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 419 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 off-grid energy system providers, 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 “off-grid energy system providers”. 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 off-grid energy system providers), 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 off-grid energy system providers, 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, 873 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.

Off-grid energy system providers by metro

Off-grid energy system providers in Johannesburg87
Off-grid energy system providers in Cape Town74

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 off-grid energy system providers, 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 off-grid energy system providers are there based in South Africa?

RevenueBase identified 419 off-grid energy system providers 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?

Barloworld Power, headquartered in Boksburg North, tops this list with the largest team on record.

Which city has the most off-grid energy system providers?

Johannesburg leads with 87 headquartered companies, followed by Cape Town (74) and Pretoria (23).

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 873 verified decision-maker contacts tracked across these 419 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.