Company lists · Data refreshed September 2026

Top 25 Energy technology companies based in South Africa

Name: Energy technology companies based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 359 companies tracked

RevenueBase identified 359 energy technology companies headquartered in South Africa as of September 2026 and tracks 3,308 professional contacts across them, including 1,012 with verified work emails. Johannesburg is the largest hub.

This list covers energy technology 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 16, 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 16, 2026 86% judged on-target in blind review

359Companies

3,308Contacts tracked

1,012Verified emails

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The 25 largest energy technology companies based in South Africa

Ranked by team size

Top 25 of 359 energy technology companies based in South Africa, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy technology 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	Rubicon	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	201-500	223 contacts →
	Partial evidence “Rubicon provides world-class products and expert services in lighting, energy, and electric vehicle charging.” Source: RevenueBase Database · checked Sep 16, 2026
2	Solareff	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 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 16, 2026
3	ABC Solar SA	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	201-500	122 contacts →
	Indirect evidence “At ABC Solar, we do more than deliver solar infrastructure; we engineer certainty.” Source: RevenueBase Database · checked Sep 16, 2026
4	Gosolr	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	51-200	112 contacts →
	Indirect evidence “GoSolr is here to power your life.” Source: RevenueBase Database · checked Sep 16, 2026
5	Wetility	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 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 16, 2026
6	MOTLA	Partial evidence	City Of Tshwane, South AfricaHQ checked Sep 16, 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 16, 2026
7	Rhino Energy Solutions	Partial evidence	Sandton, South AfricaHQ checked Sep 16, 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 16, 2026
8	GC Solar	Partial evidence	Centurion, South AfricaHQ checked Sep 16, 2026	11-50	47 contacts →
	Partial evidence “GC Solar is a leading South African renewable energy system supplier.” Source: RevenueBase Database · checked Sep 16, 2026
9	NEW Southern Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 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 16, 2026
10	Enertrag South Africa	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	37 contacts →
	Partial evidence “ENERTRAG South Africa is a clean energy developer and is a subsidiary of ENERTRAG SE, an independent energy company in Germany, France, Ghana, Vietnam, Uruguay and expanding to…” Source: RevenueBase Database · checked Sep 16, 2026
11	Revov Energy Projects	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	36 contacts →
	Indirect evidence “REVOV is here to power progress, not just power systems.” Source: RevenueBase Database · checked Sep 16, 2026
12	Emergent Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	34 contacts →
	Partial evidence “At Emergent Energy, we believe energy investments should be clear, simple, and designed for long-term value.” Source: RevenueBase Database · checked Sep 16, 2026
13	Decentral Energy	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	33 contacts →
	Partial evidence “Since 2009, Decentral has been providing enduring energy solutions to the commercial, industrial, and residential sectors in South Africa.” Source: RevenueBase Database · checked Sep 16, 2026
14	Impower PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	33 contacts →
	Partial evidence “Founded in 2014, IMPOWER Pty Ltd (formerly All Power Systems) is a leading engineering, procurement and project management contractor (EPCM) operating in the solar and energy…” Source: RevenueBase Database · checked Sep 16, 2026
15	Joule Energy Solutions PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 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 16, 2026
16	Infoled	Partial evidence	Montague Gardens, South AfricaHQ checked Sep 16, 2026	11-50	24 contacts →
	Partial evidence “INFOLED is an experienced and progressive Energy Solutions Company and a recognized leader in the project development and energy consulting services industry.” Source: RevenueBase Database · checked Sep 16, 2026
17	Journey2green	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	22 contacts →
	Partial evidence “Journey2Green see the decision to go Renewable Energy as a Journey and like any journey you plan for it with a start date, an end-destination and a route plan to get you there…” Source: RevenueBase Database · checked Sep 16, 2026
18	TSG South-Africa	Indirect evidence	Alberton, South AfricaHQ checked Sep 16, 2026	201-500	22 contacts →
	Indirect evidence “TSG is the leading technical services provider for responsible mobility, operating in more than 30 countries across Europe and Africa, including South Africa.” Source: RevenueBase Database · checked Sep 16, 2026
19	Sparki Solar	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	51-200	22 contacts →
	Indirect 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 16, 2026
20	Energy Group	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	20 contacts →
	Partial evidence “Energy Group is a specialist clean energy advisor and developer focused on helping large energy users across South Africa reduce costs, improve energy security, and achieve their…” Source: RevenueBase Database · checked Sep 16, 2026
21	Mbhe Group PTY LTD	Partial evidence	City Of Tshwane, South AfricaHQ checked Sep 16, 2026	51-200	20 contacts →
	Partial evidence “MBHE Group is a holistic energy services company with our head office based in Johannesburg, South Africa.” Source: RevenueBase Database · checked Sep 16, 2026
22	Forest Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	19 contacts →
	Partial 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 16, 2026
23	Greenhouse	Partial evidence	Centurion, South AfricaHQ checked Sep 16, 2026	11-50	19 contacts →
	Partial 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 16, 2026
24	Cennergi	Partial evidence	Centurion, South AfricaHQ checked Sep 16, 2026	11-50	18 contacts →
	Partial evidence “At Cennergi, we’re passionate about shaping a cleaner, more resilient energy future for South Africa.” Source: RevenueBase Database · checked Sep 16, 2026
25	IBC Solar South Africa PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	17 contacts →
	Partial evidence “Established in 1982 and boasting over 40 years of experience, IBC SOLAR is a global leader in photovoltaic and energy storage solutions.” Source: RevenueBase Database · checked Sep 16, 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: energy technology 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 energy technology companies.
Partial evidence: Its own public description names part of energy technology companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy technology 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 359 energy technology companies based in South Africa

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Energy technology companies based in South Africa at a glance

As of Sep 16, 2026

30.6%Verified-email coverage

9.2Average contacts per company

11-50Median size (employees)

21.4%Largest-city concentration · Johannesburg

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

161

11-50

146

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 359 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 energy technology 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 “energy technology 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 energy technology 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 energy technology 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, 1,012 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 16, 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.

Energy technology companies by metro

Energy technology companies in Johannesburg77
Energy technology companies in Cape Town72

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 energy technology 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 energy technology companies are there based in South Africa?

RevenueBase identified 359 energy technology 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?

Rubicon, headquartered in Cape Town, tops this list with the largest team on record.

Which city has the most energy technology companies?

Johannesburg leads with 77 headquartered companies, followed by Cape Town (72) and Sandton (20).

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 1,012 verified decision-maker contacts tracked across these 359 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 16, 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.