Company lists · Data refreshed September 2026

Top 25 Energy transition companies based in Cape Town, South Africa

Name: Energy transition companies based in Cape Town, South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 15, 2026 122 companies tracked

RevenueBase identified 122 energy transition companies headquartered in Cape Town, South Africa as of September 2026 and tracks 1,938 professional contacts across them, including 664 with verified work emails. Cape Town is the largest hub.

This list covers energy transition companies headquartered in Cape Town, 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 15, 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 15, 2026 86% judged on-target in blind review

122Companies

1,938Contacts tracked

664Verified emails

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The 25 largest energy transition companies based in Cape Town, South Africa

Ranked by team size

Top 25 of 122 energy transition companies based in Cape Town, South Africa, ranked by team size, largest first. Data refreshed Sep 15, 2026. RevenueBase Smart Search rates how each company's information relates to energy transition 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	RED Rocket South Africa PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	51-200	198 contacts →
	Partial evidence “Red Rocket is NERSA-licensed electricty trader and a leading integrated IPP that develops andesigns, constructs, operates, and owns utility-scale, grid-connected renewable energy…” Source: RevenueBase Database · checked Sep 15, 2026
2	Mulilo	Indirect evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	51-200	180 contacts →
	Indirect evidence “Since its establishment in 2008, Mulilo has grown into one of the leading Independent Power Producers (IPP) in Southern Africa.” Source: RevenueBase Database · checked Sep 15, 2026
3	Stage Zero	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 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 15, 2026
4	Juwi South Africa	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	51-200	62 contacts →
	Partial evidence “Our aim is to create lasting value for all people through the economic and social benefit of renewable energy.” Source: RevenueBase Database · checked Sep 15, 2026
5	G7 Renewable Energies PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	11-50	49 contacts →
	Partial evidence “G7 Renewable Energies is a fully integrated Independent Power Producer (IPP) and pioneer of utility-scale hybrid renewable energy in South Africa.” Source: RevenueBase Database · checked Sep 15, 2026
6	NEW Southern Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 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 15, 2026
7	Dorman Energy PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 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 15, 2026
8	Enertrag South Africa	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 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 15, 2026
9	Emergent Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 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 15, 2026
10	Solink	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	51-200	27 contacts →
	Partial evidence “SOLINK is a leading technical advisor and project facilitator in the renewable energy sector.” Source: RevenueBase Database · checked Sep 15, 2026
11	Mainstream Renewable Power South Africa	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	51-200	26 contacts →
	Partial evidence “Mainstream Renewable Power is a leading pure-play renewable energy company, with wind and solar assets across global markets, including in South Africa, Latin America, and…” Source: RevenueBase Database · checked Sep 15, 2026
12	Joule Energy Solutions PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 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 15, 2026
13	Veers Group	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	51-200	22 contacts →
	Partial evidence “VEERS GROUP was founded out of the need for renewable energy and sustainable mining solutions in Africa.” Source: RevenueBase Database · checked Sep 15, 2026
14	Energy Group	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 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 15, 2026
15	Forest Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 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 15, 2026
16	IBC Solar South Africa PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 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 15, 2026
17	Power Partners Group	Indirect evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	11-50	17 contacts →
	Indirect evidence “Power Partners Group was established in 2019.” Source: RevenueBase Database · checked Sep 15, 2026
18	Solar Capital PTY LTD	Indirect evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	11-50	15 contacts →
	Indirect evidence “Solar Capital (Pty) Ltd is a utility-scale solar PV company based out of South Africa.” Source: RevenueBase Database · checked Sep 15, 2026
19	Micasa Energy Solutions	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 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 15, 2026
20	Blue Energy Africa	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	11-50	13 contacts →
	Partial evidence “Blue Energy Africa is shaping the continent’s energy landscape.” Source: RevenueBase Database · checked Sep 15, 2026
21	EDF Renewables South Africa	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	51-200	12 contacts →
	Partial evidence “EDF Renewables (South Africa) is a locally based, fully integrated, independent power producer that develops, finances, builds, owns and operates commercial renewable energy…” Source: RevenueBase Database · checked Sep 15, 2026
22	Broadreach Energy	Indirect evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	11-50	11 contacts →
	Indirect evidence “Broadreach was founded in 2014, by a group of like-minded individuals, and a year later settled its vision to be the bridge between the technical and financial worlds of renewable…” Source: RevenueBase Database · checked Sep 15, 2026
23	Treetops Renewable Energy Systems	Indirect evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	11-50	10 contacts →
	Indirect evidence “We are providing Turnkey Solar Systems for our Residential, Commercial and Industrial / Agricultural customers.” Source: RevenueBase Database · checked Sep 15, 2026
24	H1 Holdings PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	1-10	10 contacts →
	Partial evidence “H1 Holdings is a clean energy company based in Cape Town, South Africa.” Source: RevenueBase Database · checked Sep 15, 2026
25	The Future Of Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 15, 2026	1-10	10 contacts →
	Partial evidence “TFE leverages data, digital technologies, analytics and on-ground experience to shape the future of energy in sub-Saharan Africa and South Asia.” Source: RevenueBase Database · checked Sep 15, 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 transition 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 transition companies.
Partial evidence: Its own public description names part of energy transition companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy transition 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 122 energy transition companies based in Cape Town, South Africa

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Energy transition companies based in Cape Town, South Africa at a glance

As of Sep 15, 2026

34.3%Verified-email coverage

15.9Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · Cape Town

Sep 15, 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 across the whole South Africa list rather than for Cape Town, so it is reported there. Company counts and contact totals on this page are exact for Cape Town, over 122 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 transition 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 Cape Town, South Africa whose own description of what they do matches “energy transition 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 transition 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 transition companies, and records with no verified work email. Companies headquartered outside Cape Town 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, 664 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 15, 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 transition companies by metro in South Africa

Energy transition companies in Cape Town122
Energy transition companies in Johannesburg114
Energy transition companies in Pretoria30

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 transition 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 transition companies are there based in Cape Town, South Africa?

RevenueBase identified 122 energy transition companies headquartered in Cape Town, 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?

RED Rocket South Africa PTY LTD, headquartered in Cape Town, tops this list with the largest team on record.

Which city has the most energy transition companies?

Cape Town leads with 122 headquartered companies, followed by Johannesburg (114) and Pretoria (30).

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 664 verified decision-maker contacts tracked across these 122 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 15, 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.