Company lists · Data refreshed September 2026

Top 25 Residential energy efficiency companies based in South Africa

Name: Residential energy efficiency companies based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 170 companies tracked

RevenueBase identified 170 company matches for residential energy efficiency companies associated with South Africa as of September 2026 and tracks 792 professional contacts across them, including 182 with verified work emails. Cape Town is the largest hub.

This list covers company matches for residential energy efficiency companies associated with South Africa, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 17, 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 RevenueBase SmartSearch · Exact Recorded Sep 17, 2026 How this list was built

170Companies

792Contacts tracked

182Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest residential energy efficiency companies based in South Africa

Ranked by team size

Top 25 of 170 company matches for residential energy efficiency companies based in South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Alumo Energy	Exact match	Pretoria, South AfricaHQ recorded Sep 17, 2026	201-500	79 contacts →
	Exact match “We're not your average solar company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
2	Home Comfort	Exact match	Germiston, South AfricaHQ recorded Sep 17, 2026	n/a	37 contacts →
	Exact match “We all want our homes to feel safe, warm and welcoming to our family and friends.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
3	Karebo Group	Exact match	Woodmead, South AfricaHQ recorded Sep 17, 2026	11-50	36 contacts →
	Exact match “Karebo has been in business since 1997 and has a solid track record in large scale energy efficiency rollouts and other mass rollouts.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
4	Decentral Energy	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	33 contacts →
	Exact match “Since 2009, Decentral has been providing enduring energy solutions to the commercial, industrial, and residential sectors in South Africa.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
5	LTM Energy PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	201-500	26 contacts →
	Exact match “LTM Energy is an Energy Services Company (ESCO) with a unique blend of skills and experience obtained primarily in the energy industry.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
6	Sparki Solar	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	51-200	22 contacts →
	Exact match “Sparki is a rapidly growing solar installation company that aims to provide high-quality.compliant solar installations to homeowners, and business alike.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
7	Thula Moya Energy	Exact match	Ballito, South AfricaHQ recorded Sep 17, 2026	11-50	16 contacts →
	Exact match “Thula Moya Energy is committed to being your long-term partner in clean energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
8	Micasa Energy Solutions	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	51-200	14 contacts →
	Exact match “We offer Integrated Smart and Sustainable Energy solutions that include Solar PV, Water, and Lighting solutions for the Commercial, Industrial, Agricultural and Residential…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
9	Solarvest	Exact match	Shakashead, South AfricaHQ recorded Sep 17, 2026	11-50	13 contacts →
	Exact match “We provide renewable energy solutions for C&I & residential sectors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
10	Energy Cost Savers	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	11 contacts →
	Exact match “Did you know that energy waste can drain your budget faster than you think?” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
11	Asiye Green	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	1-10	10 contacts →
	Exact match “Asiye Green has extensive managerial and technical experience in delivering successful projects in South Africa.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
12	Nupower Solar	Exact match	Alberton, South AfricaHQ recorded Sep 17, 2026	51-200	9 contacts →
	Exact match “NuPower Solar is the a leader in supplying world class alternative energy solutions to the residential and commercial industries.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
13	Pure Electrical Solutions Gauteng	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	9 contacts →
	Exact match “Pure Electrical Solutions is a leading solar company dedicated to providing innovative and sustainable energy solutions for residential, industrial, and commercial sectors.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
14	RCSOL	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	1-10	9 contacts →
	Exact match “We are experts in providing smart and sustainable energy systems for industrial and commercial operations, utilities, as well as high-tech residential operations.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
15	Sunworx Photovoltaic Systems	Exact match	Rivonia, South AfricaHQ recorded Sep 17, 2026	51-200	8 contacts →
	Exact match “We provide reliable solar power solutions for homeowners and businesses.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
16	Elite Energy Solutions	Exact match	Boksburg, South AfricaHQ recorded Sep 17, 2026	11-50	7 contacts →
	Exact match “Elite Energy Solutions is one of South Africa's leading installers of solar energy systems.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
17	Premier Brands Energy Solutions	Exact match	City Of Tshwane, South AfricaHQ recorded Sep 17, 2026	1-10	6 contacts →
	Exact match “Premier Brands Energy Solutions is an energy company focusing on renewable energy and energy efficiency.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
18	Poweroptimal	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	11-50	5 contacts →
	Exact match “At PowerOptimal, we’re building the future of energy-one innovation at a time.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
19	ONE Energy Cape Town	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	11-50	5 contacts →
	Exact match “One Energy Cape Town specialises in helping residential and commercial clients take control of their electricity costs and supply by getting off the grid step-by-step using our…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
20	Elicity	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	1-10	5 contacts →
	Exact match “Empowering businesses and homes with clean, affordable energy.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
21	LRG Solar	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	11-50	5 contacts →
	Exact match “At LRG Solar, we're more than just a solar energy company; we're pioneers in the renewable energy revolution.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
22	Atsolar	Exact match	Johannesburg, South AfricaHQ recorded Sep 17, 2026	11-50	4 contacts →
	Exact match “Specializing in high-end homes and commercial buildings for all your solar needs, we are also seasoned experts when it comes to standard houses, offering a sophisticated and…” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
23	Energy Cost Savings Specialists	Exact match	Pretoria, South AfricaHQ recorded Sep 17, 2026	1-10	3 contacts →
	Exact match “Professional Power and Energy Specialist Solutions and Renewable Energy Company.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
24	Samsam PTY LTD	Exact match	Cape Town, South AfricaHQ recorded Sep 17, 2026	1-10	3 contacts →
	Exact match “Social.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase
25	Green Power	Exact match	Inanda, South AfricaHQ recorded Sep 17, 2026	1-10	3 contacts →
	Exact match “Welcome to Green Power, a project developer in the energy sector.” Recorded in the RevenueBase company graph · Sep 17, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “residential energy efficiency companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 170 residential energy efficiency companies based in South Africa

See the full list, filter by size, metro and specialty, and access 182 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Residential energy efficiency companies based in South Africa at a glance

As of Sep 17, 2026

23.0%Verified-email coverage

4.7Average contacts per company

1-10Median size (employees)

18.8%Largest-city concentration · Cape Town

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 170 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with South Africa whose business descriptions match “residential energy efficiency companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 182 professional contacts with verified work emails across the full matched dataset. 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 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “residential energy efficiency companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many residential energy efficiency companies are there based in South Africa?

RevenueBase identified 170 company matches for residential energy efficiency companies associated with South Africa as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Alumo Energy tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most residential energy efficiency companies?

Cape Town leads with 32 company records, followed by Johannesburg (31) and Pretoria (6).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 182 professional contacts with verified work emails tracked across these 170 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 170 residential energy efficiency companies based in South Africa. Start with a free account, no credit card.

Download this list →

Related lists

Residential energy efficiency companies by geography

Browse the directory

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.