Company lists · Data refreshed September 2026

Top 25 Renewable energy optimization software based in South Africa

Name: Renewable energy optimization software based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 245 companies tracked

RevenueBase identified 245 renewable energy optimization software headquartered in South Africa as of September 2026 and tracks 1,925 professional contacts across them, including 641 with verified work emails and 65 with mobile numbers. Cape Town is the largest hub.

This list covers renewable energy optimization software 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, 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

245Companies

1,925Contacts tracked

641Verified emails

65Mobile numbers

Explore all 245 companies → Free signup · no credit card · 500 free credits

The 25 largest renewable energy optimization software based in South Africa

Ranked by team size

Top 25 of 245 renewable energy optimization software based in 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 optimization software: 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	SolareffStrong evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	51-200	128
	“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: company website · checked Sep 5, 2026
2	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
3	GosolrIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	51-200	112
	“GoSolr is here to power your life.” Source: company website · checked Sep 5, 2026
4	WetilityIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	51-200	96
	“In a world where unpredictability has become the norm, people and businesses need more than access to essential services.” Source: company website · checked Sep 5, 2026
5	Alumo EnergyIndirect evidence	Pretoria, South AfricaHQ checked Sep 5, 2026	201-500	79
	“We're not your average solar company.” Source: company website · checked Sep 5, 2026
6	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
7	NEW Southern EnergyPartial evidence	Cape Town, South AfricaHQ checked Sep 5, 2026	11-50	44
	“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: company website · checked Sep 5, 2026
8	Genergy South AfricaStrong evidence	Port Elizabeth, South AfricaHQ checked Sep 5, 2026	51-200	43
	“Genergy is a renewable energy company with a National Footprint and its Head Quarters based in Gqeberha.” Source: company website · checked Sep 5, 2026
9	Emergent EnergyPartial evidence	Cape Town, South AfricaHQ checked Sep 5, 2026	11-50	34
	“At Emergent Energy, we believe energy investments should be clear, simple, and designed for long-term value.” Source: company website · checked Sep 5, 2026
10	SolinkStrong evidence	Cape Town, South AfricaHQ checked Sep 5, 2026	51-200	27
	“SOLINK is a leading technical advisor and project facilitator in the renewable energy sector.” Source: company website · checked Sep 5, 2026
11	Solar Energy AfricaStrong evidence	Stellenbosch, South AfricaHQ checked Sep 5, 2026	11-50	27
	“Solar Energy Africa is a multi-disciplinary engineering company and renewable energy solutions provider.” Source: company website · checked Sep 5, 2026
12	Joule Energy Solutions PTY LTDPartial evidence	Cape Town, South AfricaHQ checked Sep 5, 2026	11-50	24
	“Joule Energy Solutions is a forward-thinking dynamic company, who is on a mission to help solve the energy crisis in South Africa.” Source: company website · checked Sep 5, 2026
13	InfoledPartial evidence	Montague Gardens, South AfricaHQ checked Sep 5, 2026	11-50	24
	“INFOLED is an experienced and progressive Energy Solutions Company and a recognized leader in the project development and energy consulting services industry.” Source: company website · checked Sep 5, 2026
14	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
15	Sparki SolarIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	51-200	22
	“Sparki is a rapidly growing solar installation company that aims to provide high-quality.compliant solar installations to homeowners, and business alike.” Source: company website · checked Sep 5, 2026
16	Okara EnergyIndirect evidence	Port Elizabeth, South AfricaHQ checked Sep 5, 2026	11-50	21
	“Our mission at Okara is to establish and maintain world class wind production facilities for our valued clients at the highest standards.” Source: company website · checked Sep 5, 2026
17	Mbhe Group PTY LTDPartial evidence	City Of Tshwane, South AfricaHQ checked Sep 5, 2026	51-200	20
	“MBHE Group is a holistic energy services company with our head office based in Johannesburg, South Africa.” Source: company website · checked Sep 5, 2026
18	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
19	Forest EnergyPartial evidence	Cape Town, South AfricaHQ checked Sep 5, 2026	11-50	19
	“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: company website · checked Sep 5, 2026
20	Power Partners GroupIndirect evidence	Cape Town, South AfricaHQ checked Sep 5, 2026	11-50	17
	“Power Partners Group was established in 2019.” Source: company website · checked Sep 5, 2026
21	Renu SolarPartial evidence	Hillcrest, South AfricaHQ checked Sep 5, 2026	11-50	17
	“ESTABLISHED IN 2008 With over a decade of experience, Renu Solar brings a wealth of knowledge and expertise to the renewable industry.” Source: company website · checked Sep 5, 2026
22	The Energy GurusPartial evidence	City Of Tshwane, South AfricaHQ checked Sep 5, 2026	51-200	16
	“The Energy Gurus (Pty) Ltd.” Source: company website · checked Sep 5, 2026
23	BlockpowerIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	15
	“Welcome to Blockpower – Experienced in grid tied, hybrid and off-grid solar PV applications, with partners in industrial scale PV, automation and manufacturing.” Source: company website · checked Sep 5, 2026
24	Solar Capital PTY LTDIndirect evidence	Cape Town, South AfricaHQ checked Sep 5, 2026	11-50	15
	“Solar Capital (Pty) Ltd is a utility-scale solar PV company based out of South Africa.” Source: company website · checked Sep 5, 2026
25	Micasa Energy SolutionsPartial evidence	Cape Town, South AfricaHQ checked Sep 5, 2026	51-200	14
	“We offer Integrated Smart and Sustainable Energy solutions that include Solar PV, Water, and Lighting solutions for the Commercial, Industrial, Agricultural and Residential…” Source: company website · checked Sep 5, 2026

Showing 25 of 245 renewable energy optimization software based in South Africa

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Renewable energy optimization software based in South Africa at a glance

As of Sep 5, 2026

11-50Median size (employees)

Cape TownLargest hub · 47 HQs

65Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

108

11-50

51-200

201-500

1,001-5,000

Verified emails by last verification

0–30

594

31–60

61–90

90–180

180+

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 optimization software, 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 South Africa whose own description of what they do matches “renewable energy optimization software”. 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 optimization software, 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 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, 641 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 optimization software by metro

Renewable energy optimization software in Cape Town47
Renewable energy optimization software in Johannesburg42

Frequently asked

How many renewable energy optimization software are there based in South Africa?

RevenueBase identified 245 renewable energy optimization software 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?

Solareff, headquartered in Roodepoort, tops this list with the largest team on record.

Which city has the most renewable energy optimization software?

Cape Town leads with 47 headquartered companies, followed by Johannesburg (42) and Pretoria (14).

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 641 verified decision-maker contacts tracked across these 245 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.