Company lists · Data verified August 2026

Top 25 Climate consulting firms based in South Africa

Name: Climate 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 277 companies tracked

There are 277 climate consulting firms headquartered in South Africa (RevenueBase, August 2026). RevenueBase tracks 1,931 professional contacts across them, including 526 with verified work emails and 108 with mobile numbers. Cape Town is the largest hub.

This list covers climate 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.

277Companies

1,931Contacts tracked

526Verified emails

108Mobile numbers

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The 25 largest climate consulting firms based in South Africa

Ranked by team size

Top 25 of 277 climate 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	Ncc-Group PTY LTD	Durban	201-500	120	27
3	Siyakha Consulting	Johannesburg	51-200	90	38
4	ECO Elementum	City Of Tshwane	51-200	68	9
5	C4 Ecosolutions	Cape Town	51-200	61	36
6	Terramanzi Group	Cape Town	11-50	47	7
7	GCX	Cape Town	11-50	37	21
8	Yellow Tree	Meyerton	11-50	35	24
9	Solid Green	Johannesburg	11-50	35	22
10	Zitholele Consulting	Midrand	11-50	33	16
11	Rayten Engineering Solutions PTY LTD	George	11-50	25	16
12	Environmental Assurance PTY LTD	Hartebeespoort	11-50	21	12
13	Promethium Carbon	Johannesburg	11-50	19	14
14	Kongiwe	Bryanston	11-50	19	1
15	Anthesis South Africa	Cape Town	11-50	16	10
16	Grenex	Nieuw Muckleneuk Pretoria	11-50	16	4
17	Environmental Impact Management Services PTY LTD	Johannesburg	11-50	15	10
18	EXM Advisory Services PTY LTD	Kathu	11-50	15	9
19	Triplo4 Sustainable Solutions PTY LTD	Msunduzi	11-50	14	10
20	Guillaume NEL Environmental Consultants Gnec	Paarl	11-50	14	7
21	Nsovo Environmental Consulting	Johannesburg	11-50	13	9
22	Ep3 Environmental	George	11-50	12	9
23	Environmental Management Group EMG	Bloemfontein	11-50	12	7
24	Enviroworks Environmental	Cape Town	11-50	9	7
25	Sillito Environmental Consulting PTY LTD	Cape Town	11-50	9	4

Showing 25 of 277 climate consulting firms based in South Africa

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Climate consulting firms based in South Africa at a glance

As of Aug 28, 2026

1-10Median size (employees)

Cape TownLargest hub · 53 HQs

108Contacts with mobile numbers

3Emails re-verified in last 30 days

Companies by employee count

1-10

211

11-50

51-200

201-500

Climate consulting firms by metro

Metro	Companies
Climate consulting firms in Cape Town	53
Climate consulting firms in Johannesburg	51
Climate consulting firms in Pretoria	24
Climate consulting firms in Sandton	10
Climate consulting firms in City Of Tshwane	8
Climate consulting firms in Centurion	8
Climate consulting firms in Durban	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 “climate 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; 3 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 climate consulting firms are there based in South Africa?

There are 277 climate 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 climate consulting firms?

Cape Town leads with 53 headquartered companies, followed by Johannesburg (51) and Pretoria (24).

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 526 verified decision-maker contacts tracked across these 277 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.