Company lists · Data refreshed September 2026

Top 25 Sustainable energy developers based in Cape Town, South Africa

Name: Sustainable energy developers 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 18, 2026 111 companies tracked

RevenueBase identified 111 sustainable energy developers headquartered in Cape Town, South Africa as of September 2026 and tracks 1,834 professional contacts across them, including 714 with verified work emails. Cape Town is the largest hub.

This list covers sustainable energy developers 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 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

111Companies

1,834Contacts tracked

714Verified emails

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The 25 largest sustainable energy developers based in Cape Town, South Africa

Ranked by team size

Top 25 of 111 sustainable energy developers based in Cape Town, South Africa, ranked by team size, largest first. Data refreshed Sep 18, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable energy developers: 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 18, 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 18, 2026
2	Mulilo	Indirect evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
3	Stage Zero	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
4	Nordex Energy South Africa	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	51-200	78 contacts →
	Partial evidence “Nordex Energy South Africa Ltd.(NESA), boasts a total installed capacity of more than 1GW, making it a market leader with 32% market share on the total installed wind capacity in…” Source: RevenueBase Database · checked Sep 18, 2026
5	Juwi South Africa	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
6	G7 Renewable Energies PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
7	NEW Southern Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
8	Enertrag South Africa	Strong evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	11-50	37 contacts →
	Strong 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 18, 2026
9	Emergent Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
10	Impower PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
11	Solink	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
12	Mainstream Renewable Power South Africa	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
13	Joule Energy Solutions PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
14	Sustainable Energy Africa	Strong evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	11-50	23 contacts →
	Strong evidence “Sustainable Energy Africa promotes the development of an equitable low carbon, clean energy economy throughout Southern Africa.” Source: RevenueBase Database · checked Sep 18, 2026
15	Veers Group	Strong evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	51-200	22 contacts →
	Strong evidence “VEERS GROUP was founded out of the need for renewable energy and sustainable mining solutions in Africa.” Source: RevenueBase Database · checked Sep 18, 2026
16	Energy Group	Strong evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	11-50	20 contacts →
	Strong 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 18, 2026
17	Forest Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
18	Power Partners Group	Indirect evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	11-50	17 contacts →
	Indirect evidence “Power Partners Group was established in 2019.” Source: RevenueBase Database · checked Sep 18, 2026
19	Solar Capital PTY LTD	Indirect evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
20	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
21	EDF Renewables South Africa	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
22	Genesis Eco-Energy Developments	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 2026	1-10	11 contacts →
	Partial evidence “Genesis Eco-Energy Developments is one of South Africa's pioneering renewable energy development companies.” Source: RevenueBase Database · checked Sep 18, 2026
23	Broadreach Energy	Indirect evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
24	Treetops Renewable Energy Systems	Indirect evidence	Cape Town, South AfricaHQ checked Sep 18, 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 18, 2026
25	H1 Holdings PTY LTD	Partial evidence	Cape Town, South AfricaHQ checked Sep 18, 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 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: sustainable energy developers. 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 sustainable energy developers.
Partial evidence: Its own public description names part of sustainable energy developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable energy developers. 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 111 sustainable energy developers based in Cape Town, South Africa

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Sustainable energy developers based in Cape Town, South Africa at a glance

As of Sep 18, 2026

38.9%Verified-email coverage

16.5Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Cape Town

Sep 18, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 111 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 sustainable energy developers, 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 “sustainable energy developers”. 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 sustainable energy developers), 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 sustainable energy developers, 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, 714 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.

Sustainable energy developers by metro in South Africa

Sustainable energy developers in Cape Town111
Sustainable energy developers in Johannesburg102
Sustainable energy developers 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 sustainable energy developers, 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 sustainable energy developers are there based in Cape Town, South Africa?

RevenueBase identified 111 sustainable energy developers 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 sustainable energy developers?

Cape Town leads with 111 headquartered companies, followed by Johannesburg (102) 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 714 verified decision-maker contacts tracked across these 111 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.