Company lists · Data refreshed September 2026

Top 25 Energy management firms based in South Africa

Name: Energy management firms based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 227 companies tracked

RevenueBase identified 227 energy management firms headquartered in South Africa as of September 2026 and tracks 1,724 professional contacts across them, including 513 with verified work emails. Cape Town is the largest hub.

This list covers energy management firms 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 21, 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 21, 2026 86% judged on-target in blind review

227Companies

1,724Contacts tracked

513Verified emails

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The 25 largest energy management firms based in South Africa

Ranked by team size

Top 25 of 227 energy management firms based in South Africa, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to energy management firms: 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	Alumo Energy	Indirect evidence	Pretoria, South AfricaHQ checked Sep 21, 2026	201-500	79 contacts →
	Indirect evidence “We're not your average solar company.” Source: RevenueBase Database · checked Sep 21, 2026
2	Livewire Engineering And Consulting PTY LTD	Strong evidence	Cape Town, South AfricaHQ checked Sep 21, 2026	11-50	48 contacts →
	Strong evidence “Livewire Engineering and Consulting (Pty) Ltd was founded in March 2006 to specifically address consulting requirements in the fields of Energy Management, Tariff Analysis, Energy…” Source: RevenueBase Database · checked Sep 21, 2026
3	Energy And Combustion Services	Indirect evidence	Kloof, South AfricaHQ checked Sep 21, 2026	11-50	41 contacts →
	Indirect evidence “At ECS we strive to empower our customers in the mining, industrial and commercial sectors with the ability to transform and continuously enhance and optimise their operational…” Source: RevenueBase Database · checked Sep 21, 2026
4	Karebo Group	Partial evidence	Woodmead, South AfricaHQ checked Sep 21, 2026	11-50	36 contacts →
	Partial evidence “Karebo has been in business since 1997 and has a solid track record in large scale energy efficiency rollouts and other mass rollouts.” Source: RevenueBase Database · checked Sep 21, 2026
5	Emergent Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 21, 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 21, 2026
6	Decentral Energy	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	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 21, 2026
7	Raydian Group PTY LTD	Indirect evidence	Cape Town, South AfricaHQ checked Sep 21, 2026	51-200	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 21, 2026
8	Impact Meter Services PTY LTD	Partial evidence	City Of Tshwane, South AfricaHQ checked Sep 21, 2026	51-200	27 contacts →
	Partial evidence “Impact Meter Services (IMS) has developed an effective and professional electricity management system, which is amongst the best in the marketplace today.” Source: RevenueBase Database · checked Sep 21, 2026
9	LTM Energy PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	201-500	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 21, 2026
10	Infoled	Partial evidence	Montague Gardens, South AfricaHQ checked Sep 21, 2026	11-50	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 21, 2026
11	Matriarch Asset Managers	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	21 contacts →
	Partial evidence “Matriarch expertly monitors, measures and manages both embedded energy generators and core utilities across large property portfolios.” Source: RevenueBase Database · checked Sep 21, 2026
12	Forest Energy	Partial evidence	Cape Town, South AfricaHQ checked Sep 21, 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 21, 2026
13	The Energy Gurus	Partial evidence	City Of Tshwane, South AfricaHQ checked Sep 21, 2026	51-200	16 contacts →
	Partial evidence “The Energy Gurus (Pty) Ltd.” Source: RevenueBase Database · checked Sep 21, 2026
14	Thula Moya Energy	Partial evidence	Ballito, South AfricaHQ checked Sep 21, 2026	11-50	16 contacts →
	Partial evidence “Thula Moya Energy is committed to being your long-term partner in clean energy.” Source: RevenueBase Database · checked Sep 21, 2026
15	Grenex	Strong evidence	Pretoria, South AfricaHQ checked Sep 21, 2026	11-50	16 contacts →
	Strong evidence “Located in Pretoria, Grenex (PTY) Ltd specializes in energy management, water management, carbon management services and products.” Source: RevenueBase Database · checked Sep 21, 2026
16	Solarvest	Partial evidence	Shakashead, South AfricaHQ checked Sep 21, 2026	11-50	13 contacts →
	Partial evidence “We provide renewable energy solutions for C&I & residential sectors.” Source: RevenueBase Database · checked Sep 21, 2026
17	Cape Automation Systems	Strong evidence	Mowbray, South AfricaHQ checked Sep 21, 2026	11-50	13 contacts →
	Strong evidence “Cape Automation Systems is a Building Management System (BMS), Energy Management System, HVAC controls and services provider” Source: RevenueBase Database · checked Sep 21, 2026
18	SEM Solutions PTY LTD	Partial evidence	Centurion, South AfricaHQ checked Sep 21, 2026	11-50	12 contacts →
	Partial evidence “SEM Solutions is an ENERGY ENGINEERING company that specialises in tailoring bespoke solutions for the energy requirements of our clients.” Source: RevenueBase Database · checked Sep 21, 2026
19	Optimal Control Systems PTY LTD	Indirect evidence	Randburg, South AfricaHQ checked Sep 21, 2026	11-50	12 contacts →
	Indirect evidence “Optimal Control Systems (PTY) Ltd was founded in 1993.” Source: RevenueBase Database · checked Sep 21, 2026
20	Inpower	Partial evidence	Cape Town, South AfricaHQ checked Sep 21, 2026	201-500	12 contacts →
	Partial evidence “We provide innovative turnkey energy and power solutions for Sectional Title, Commercial Properties and Industrial Properties in Cape Town” Source: RevenueBase Database · checked Sep 21, 2026
21	U Systems PTY LTD	Indirect evidence	City Of Tshwane, South AfricaHQ checked Sep 21, 2026	11-50	12 contacts →
	Indirect evidence “The U Group of Companies offer tailored solutions.” Source: RevenueBase Database · checked Sep 21, 2026
22	Republic Metering	Indirect evidence	Grahamstown, South AfricaHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “With the increase in living and utility costs on the rise, it has become even more essential to properly manage your utilities – using out-dated technology or meter reading…” Source: RevenueBase Database · checked Sep 21, 2026
23	Energy Cost Savers	Partial evidence	Johannesburg, South AfricaHQ checked Sep 21, 2026	11-50	11 contacts →
	Partial evidence “Did you know that energy waste can drain your budget faster than you think?” Source: RevenueBase Database · checked Sep 21, 2026
24	Meridian Energy	Partial evidence	Pretoria, South AfricaHQ checked Sep 21, 2026	1-10	9 contacts →
	Partial evidence “Your holistic partner in energy” Source: RevenueBase Database · checked Sep 21, 2026
25	Nupower Solar	Partial evidence	Alberton, South AfricaHQ checked Sep 21, 2026	51-200	9 contacts →
	Partial evidence “NuPower Solar is the a leader in supplying world class alternative energy solutions to the residential and commercial industries.” Source: RevenueBase Database · checked Sep 21, 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: energy management firms. 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 energy management firms.
Partial evidence: Its own public description names part of energy management firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy management firms. 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 227 energy management firms based in South Africa

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Energy management firms based in South Africa at a glance

As of Sep 21, 2026

29.8%Verified-email coverage

7.6Average contacts per company

1-10Median size (employees)

16.3%Largest-city concentration · Cape Town

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

121

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 227 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 energy management firms, 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 “energy management firms”. 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 energy management firms), 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 energy management firms, 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, 513 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 21, 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.

Energy management firms by metro

Energy management firms in Cape Town37
Energy management firms in Johannesburg35

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 energy management firms, 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 energy management firms are there based in South Africa?

RevenueBase identified 227 energy management firms 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?

Alumo Energy, headquartered in Pretoria, tops this list with the largest team on record.

Which city has the most energy management firms?

Cape Town leads with 37 headquartered companies, followed by Johannesburg (35) and Pretoria (17).

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 513 verified decision-maker contacts tracked across these 227 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 21, 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.