Company lists · Data refreshed September 2026
Top 25 Sustainable energy consultants based in South Africa
RevenueBase identified 467 sustainable energy consultants headquartered in South Africa as of September 2026 and tracks 3,175 professional contacts across them, including 1,208 with verified work emails. Johannesburg is the largest hub.
This list covers sustainable energy consultants 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 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.
The 25 largest sustainable energy consultants based in South Africa
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 231 contacts → | ||||
Partial evidence “Terra Firma is a leading turnkey energy engineering solution provider based in sub-Saharan Africa.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 133 contacts → | ||||
Indirect evidence “For more than 22 years, USP & E has helped clients worldwide overcome the risks of downtime, delays, and unreliable power.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 5 | 122 contacts → | ||||
Indirect evidence “At ABC Solar, we do more than deliver solar infrastructure; we engineer certainty.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 6 | 82 contacts → | ||||
Partial evidence “South Africa's energy future is being built, one engineered solution at a time.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 7 | 79 contacts → | ||||
Indirect evidence “We're not your average solar company.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 8 | 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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 35 contacts → | ||||
Partial evidence “Harmattan Renewables brings together a team of experienced renewables consultants who have been at the forefront of developing Africa’s renewables sector.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 10 | 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, 2026Thanks. The Data Team will review it. | |||||
| 11 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 12 | 33 contacts → | ||||
Indirect evidence “Raydian has a rich history and a diverse range of services, evolving from its early days as Laserfix to becoming a leading provider of service contracts, office automation…” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 13 | 27 contacts → | ||||
Partial evidence “SOLINK is a leading technical advisor and project facilitator in the renewable energy sector.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 14 | 27 contacts → | ||||
Partial evidence “Solar Energy Africa is a multi-disciplinary engineering company and renewable energy solutions provider.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 15 | 26 contacts → | ||||
Indirect evidence “Since our inception in 2010, we coined the term Greenovative and have aimed to be pioneers in the electrical and electronic building.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 16 | 26 contacts → | ||||
Partial evidence “LTM Energy is an Energy Services Company (ESCO) with a unique blend of skills and experience obtained primarily in the energy industry.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 19 | 23 contacts → | ||||
Partial evidence “A renewable energy solutions company delivering viable energy solutions to clients on across the African continent.” Source: RevenueBase Database · checked Sep 18, 2026Thanks. The Data Team will review it. | |||||
| 20 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 23 | 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 18, 2026Thanks. The Data Team will review it. | |||||
| 24 | 19 contacts → | ||||
Indirect 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 18, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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, 2026Thanks. The Data Team will review it. | |||||
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 consultants. 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 consultants.
- Partial evidence
- Its own public description names part of sustainable energy consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name sustainable energy consultants. 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 467 sustainable energy consultants based in South Africa
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Sustainable energy consultants based in South Africa at a glance
As of Sep 18, 2026Companies by employee count
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 467 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 consultants, 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 “sustainable energy consultants”. 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 consultants), 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 consultants, 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, 1,208 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 consultants by metro
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 consultants, 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 consultants are there based in South Africa?
RevenueBase identified 467 sustainable energy consultants 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?
Terra Firma, headquartered in Cape Town, tops this list with the largest team on record.
Which city has the most sustainable energy consultants?
Johannesburg leads with 88 headquartered companies, followed by Cape Town (84) and Pretoria (36).
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 1,208 verified decision-maker contacts tracked across these 467 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.
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