Company lists · Data verified August 2026

Top 25 Clean energy consultancy companies based in South Africa

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 528 companies tracked

There are 528 clean energy consultancy companies headquartered in South Africa (RevenueBase, August 2026). RevenueBase tracks 3,586 professional contacts across them, including 1,014 with verified work emails and 181 with mobile numbers. Johannesburg is the largest hub.

This list covers clean energy consultancy companies 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.

528Companies

3,586Contacts tracked

1,014Verified emails

181Mobile numbers

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The 25 largest clean energy consultancy companies based in South Africa

Ranked by team size

Top 25 of 528 clean energy consultancy companies 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	Rioglass	Upington	501-1,000	154	10
3	ABC Solar SA	Johannesburg	201-500	120	36
4	Siyakha Consulting	Johannesburg	51-200	90	38
5	MOTLA	City Of Tshwane	51-200	82	36
6	Alumo Energy	Pretoria	201-500	79	33
7	Pele Energy Group	Johannesburg	51-200	65	42
8	C4 Ecosolutions	Cape Town	51-200	61	36
9	Renenergy UK	n/a	51-200	48	34
10	Galetech Group	Pretoria	51-200	44	11
11	Genergy South Africa	Port Elizabeth	51-200	43	10
12	Long O Donnell	Durban	51-200	39	14
13	Solid Green	Johannesburg	11-50	35	22
14	Emergent Energy	Cape Town	11-50	34	23
15	Solink	Johannesburg	51-200	27	23
16	Onezero Consulting	Rosebank	11-50	26	16
17	LTM Energy PTY LTD	Johannesburg	201-500	26	15
18	Infoled	Cape Town	11-50	24	7
19	Nuvo Energy Africa	Pretoria	51-200	23	20
20	Environmental Assurance PTY LTD	Hartebeespoort	11-50	21	12
21	Mbhe Group PTY LTD	City Of Tshwane	51-200	20	3
22	Ecolution Consulting	Cape Town	11-50	17	13
23	Ijika Services	Durban	11-50	17	7
24	Anthesis South Africa	Cape Town	11-50	16	10
25	Renu Solar	Hillcrest	11-50	16	9

Showing 25 of 528 clean energy consultancy companies based in South Africa

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Clean energy consultancy companies based in South Africa at a glance

As of Aug 28, 2026

1-10Median size (employees)

JohannesburgLargest hub · 106 HQs

181Contacts with mobile numbers

7Emails re-verified in last 30 days

Companies by employee count

1-10

328

11-50

162

51-200

201-500

501-1,000

Clean energy consultancy companies by metro

Metro	Companies
Clean energy consultancy companies in Johannesburg	106
Clean energy consultancy companies in Cape Town	99
Clean energy consultancy companies in Pretoria	43
Clean energy consultancy companies in Centurion	16
Clean energy consultancy companies in Sandton	15
Clean energy consultancy companies in Durban	15
Clean energy consultancy companies in City Of Tshwane	13
Clean energy consultancy companies in Randburg	7

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 “clean energy consultancy companies”, 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; 7 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 clean energy consultancy companies are there based in South Africa?

There are 528 clean energy consultancy companies 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 clean energy consultancy companies?

Johannesburg leads with 106 headquartered companies, followed by Cape Town (99) and Pretoria (43).

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 1,014 verified decision-maker contacts tracked across these 528 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.