Company lists · Data refreshed September 2026

Top 25 Renewable energy consultancy companies based in Johannesburg, South Africa

Name: Renewable energy consultancy companies based in Johannesburg, South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 90 companies tracked

RevenueBase identified 90 renewable energy consultancy companies headquartered in Johannesburg, South Africa as of September 2026 and tracks 598 professional contacts across them, including 217 with verified work emails. Cape Town is the largest hub.

This list covers renewable energy consultancy companies headquartered in Johannesburg, 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

90Companies

598Contacts tracked

217Verified emails

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The 25 largest renewable energy consultancy companies based in Johannesburg, South Africa

Ranked by team size

Top 25 of 90 renewable energy consultancy companies based in Johannesburg, South Africa, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names renewable energy consultancy companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	ABC Solar SAIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	201-500	122
	“At ABC Solar, we do more than deliver solar infrastructure; we engineer certainty.” Source: company website · checked Sep 5, 2026
2	Seriti GreenIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	51-200	74
	“Seriti Green is owned by Seriti Resources (54.19 %), VennEnergy (15%), RMB (15.41%) and Standard Bank (15.41%), and overseen by its own Board and independent management.” Source: company website · checked Sep 5, 2026
3	Harmattan RenewablesStrong evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	35
	“Harmattan Renewables brings together a team of experienced renewables consultants who have been at the forefront of developing Africa’s renewables sector.” Source: company website · checked Sep 5, 2026
4	LTM Energy PTY LTDPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	201-500	26
	“LTM Energy is an Energy Services Company (ESCO) with a unique blend of skills and experience obtained primarily in the energy industry.” Source: company website · checked Sep 5, 2026
5	Journey2greenStrong evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	22
	“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: company website · checked Sep 5, 2026
6	Bidvest Renewable SolutionsPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	51-200	19
	“Bidvest Renewable Solutions offers a wide range of solutions such as Grid-tie PV, Hybrid and offgrid solar systems.” Source: company website · checked Sep 5, 2026
7	Brundtland ConsultingStrong evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	1-10	19
	“Brundtland Consulting is a South African management consulting firm specialized in climate change, green economy and renewable energy.” Source: company website · checked Sep 5, 2026
8	EasypowerStrong evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	15
	“EasyPower is a proudly African company and a market leader in South Africa in the supply of specialised Renewable energy hardware, design and turnkey installation of Renewable…” Source: company website · checked Sep 5, 2026
9	Zero Point EnergyPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	14
	“Established & operational since 2015, we are a proudly South African sustainable energy company providing professional engineering consulting, turn-key Engineering, Procurement &…” Source: company website · checked Sep 5, 2026
10	Nsovo Environmental ConsultingIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	13
	“Our specialist area of focus is the assessment of multifaceted projects, including the establishment of linear developments, bulk infrastructure, power generation and…” Source: company website · checked Sep 5, 2026
11	Ep3 EnvironmentalIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	12
	“EP3 Environmental (Pty) Ltd was established by Eben van Schalkwyk in 2013 and is a multi-disciplinary consulting firm that provides Environmental and Sustainability consulting…” Source: company website · checked Sep 5, 2026
12	M Squared Power GenerationIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	11
	Source: company website · checked Sep 5, 2026
13	Delta CarbonPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	1-10	9
	“Delta Carbon is an integrated energy services and decarbonisation advisory company.” Source: company website · checked Sep 5, 2026
14	Sakisa Energy & Technology GroupStrong evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	8
	“Sakisa Energy and Technology Group is a South African-based renewable energy company delivering smart, cost-effective solar solutions for residential, commercial, and industrial…” Source: company website · checked Sep 5, 2026
15	Viridis IpsumIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	6
	“Viridis ipsum in latin means green engineering.” Source: company website · checked Sep 5, 2026
16	Synlec PTY LTDIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	1-10	6
	“Electrical engineering consulting.” Source: company website · checked Sep 5, 2026
17	Greenfield Sustainable GroupIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	5
	“Greenfield denotes pristine resources with untapped potential, operating at peak capacity.” Source: company website · checked Sep 5, 2026
18	Matleng Energy Solutions PTY LTDPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	4
	“Matleng is a multi-disciplinary consulting engineering firm which strives to solve clients' energy related challenges through the effective implementation of new and/or existing…” Source: company website · checked Sep 5, 2026
19	Solar Deity PTY LTDStrong evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	1-10	4
	“At Solar Deity (Pty) Ltd, we're on a mission to revolutionize South Africa's renewable energy landscape.” Source: company website · checked Sep 5, 2026
20	EnergidropPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	1-10	3
	“Energidrop is growing a team to address some of the most pressing needs in the quest to solve the sustainability puzzle in the 21st century.” Source: company website · checked Sep 5, 2026
21	Sunarc AfricaPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	51-200	3
	“SunArc is a market leading energy company specialising in energy generation, energy storage, electric vehicle charging infrastructure as well as small to large scale micro grids.” Source: company website · checked Sep 5, 2026
22	Commodore IndustriesStrong evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	51-200	3
	“Commodore Industries (Pty) Ltd is an energy company with a specific focus in the last mile development and financing of renewable projects.” Source: company website · checked Sep 5, 2026
23	Greenstone EnergyStrong evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	3
	“Greenstone Energy is an Independent Power producer providing renewable energy solutions to municipalities, commercial and industrial customers.” Source: company website · checked Sep 5, 2026
24	Alpenglow ConsultingPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	1-10	3
	“Alpenglow Consulting is a leading energy project development and advisory firm based in Johannesburg, South Africa.” Source: company website · checked Sep 5, 2026
25	Nuhome AfricaIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	2
	“At NuHome, we are on a mission to revolutionise the way people power their apartments, homes and businesses.” Source: company website · checked Sep 5, 2026

Showing 25 of 90 renewable energy consultancy companies based in Johannesburg, South Africa

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Renewable energy consultancy companies based in Johannesburg, South Africa at a glance

As of Sep 5, 2026

1-10Median size (employees)

Cape TownLargest hub · 93 HQs

Contacts with mobile numbers

Sep 5, 2026Data 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 this city, so it is reported there. Company counts and contact totals on this page are exact for Johannesburg, over 90 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 renewable energy consultancy companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Johannesburg, South Africa whose own description of what they do matches “renewable energy consultancy companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among renewable energy consultancy companies, and records with no verified work email. Companies headquartered outside Johannesburg 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 an evidence 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, 217 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 5, 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.

Renewable energy consultancy companies by metro in South Africa

Renewable energy consultancy companies in Cape Town93
Renewable energy consultancy companies in Johannesburg90
Renewable energy consultancy companies in Pretoria41

Frequently asked

How many renewable energy consultancy companies are there based in Johannesburg, South Africa?

RevenueBase identified 90 renewable energy consultancy companies headquartered in Johannesburg, 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?

ABC Solar SA, headquartered in Johannesburg, tops this list with the largest team on record.

Which city has the most renewable energy consultancy companies?

Cape Town leads with 93 headquartered companies, followed by Johannesburg (90) and Pretoria (41).

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 217 verified decision-maker contacts tracked across these 90 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 5, 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 SmartSearch, 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.