Company lists · Data verified August 2026

Top 25 Energy consulting firms based in South Africa

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 312 companies tracked

There are 312 energy consulting firms headquartered in South Africa (RevenueBase, August 2026). RevenueBase tracks 2,142 professional contacts across them, including 666 with verified work emails and 118 with mobile numbers. Johannesburg is the largest hub.

This list covers energy consulting firms headquartered in South Africa, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

312Companies

2,142Contacts tracked

666Verified emails

118Mobile numbers

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The 25 largest energy consulting firms based in South Africa

Ranked by team size

Top 25 of 312 energy consulting firms based in South Africa, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	NUS Consulting Group	Sandton	201-500	334	25
2	Alumo Energy	Pretoria	201-500	79	33
3	Long O Donnell	Durban	51-200	39	14
4	Reonet	Sandton	51-200	36	21
5	Emergent Energy	Cape Town	11-50	34	23
6	Syncsystems South Africa	Johannesburg	11-50	34	18
7	Decentral Energy	Rosebank	11-50	33	22
8	Raydian Group PTY LTD	Durban Kzn	51-200	32	10
9	Solink	Johannesburg	51-200	27	23
10	Onezero Consulting	Rosebank	11-50	26	16
11	LTM Energy PTY LTD	Johannesburg	201-500	26	15
12	Infoled	Cape Town	11-50	24	7
13	Energy Group	Cape Town	11-50	20	13
14	Ijika Services	Durban	11-50	17	7
15	The Energy Gurus	Centurion City Of Tshwane	51-200	16	8
16	Thula Moya Energy	Natal	11-50	16	6
17	Grenex	Nieuw Muckleneuk Pretoria	11-50	16	4
18	SEM Solutions PTY LTD	Cape Town	11-50	15	14
19	Micasa Energy Solutions	Johannesburg	51-200	14	8
20	Solarvest	Shakashead	11-50	13	5
21	Super Armature Winding Africa	Cape Town	51-200	13	4
22	U Systems PTY LTD	City Of Tshwane	11-50	12	2
23	Energy Cost Savers	Johannesburg	11-50	11	2
24	Secelec Consulting Engineers PTY LTD	Randburg	11-50	11	2
25	Pure Electrical Solutions Gauteng	Johannesburg	11-50	9	4

Showing 25 of 312 energy consulting firms based in South Africa

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Energy consulting firms based in South Africa at a glance

As of Aug 28, 2026

1-10Median size (employees)

JohannesburgLargest hub · 49 HQs

118Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

202

11-50

51-200

201-500

Energy consulting firms by metro

Metro	Companies
Energy consulting firms in Johannesburg	49
Energy consulting firms in Cape Town	47
Energy consulting firms in Pretoria	30
Energy consulting firms in Durban	16
Energy consulting firms in Sandton	11
Energy consulting firms in City Of Tshwane	9
Energy consulting firms in Centurion	9
Energy consulting firms in Randburg	6

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “energy consulting firms”, with match quality audited by blind human judging, and headquartered in South Africa.
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: Contact records re-verify on a rolling cadence; 0 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many energy consulting firms are there based in South Africa?

There are 312 energy consulting firms headquartered in South Africa as of August 2026 (RevenueBase).

What is the largest company on this list?

NUS Consulting Group, headquartered in Sandton, tops this list with the largest team on record.

Which city has the most energy consulting firms?

Johannesburg leads with 49 headquartered companies, followed by Cape Town (47) and Pretoria (30).

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 666 verified decision-maker contacts tracked across these 312 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.