Company lists · Data verified August 2026

Top 25 Esg consulting firms based in South Africa

Name: Esg 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 396 companies tracked

There are 396 esg consulting firms headquartered in South Africa (RevenueBase, August 2026). RevenueBase tracks 2,789 professional contacts across them, including 689 with verified work emails and 144 with mobile numbers. Johannesburg is the largest hub.

This list covers esg 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.

396Companies

2,789Contacts tracked

689Verified emails

144Mobile numbers

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The 25 largest esg consulting firms based in South Africa

Ranked by team size

Top 25 of 396 esg 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	Ince PTY LTD	Sandton	51-200	147	52
3	Ncc-Group PTY LTD	Durban	201-500	120	27
4	Siyakha Consulting	Johannesburg	51-200	90	38
5	ECO Elementum	City Of Tshwane	51-200	68	9
6	Terramanzi Group	Cape Town	11-50	47	7
7	Yellow Tree	Meyerton	11-50	35	24
8	Solid Green	Johannesburg	11-50	35	22
9	Zitholele Consulting	Midrand	11-50	33	16
10	Savannah Environmental PTY LTD	Johannesburg	11-50	21	13
11	Environmental Assurance PTY LTD	Hartebeespoort	11-50	21	12
12	Promethium Carbon	Johannesburg	11-50	19	14
13	Kongiwe	Bryanston	11-50	19	1
14	Thero Services Compliance IS OUR Business- Hssegc	Bloemfontein	51-200	18	2
15	Ecolution Consulting	Cape Town	11-50	17	13
16	Anthesis South Africa	Cape Town	11-50	16	10
17	Umsizi Sustainable Social Solutions	Johannesburg	11-50	16	9
18	Environmental Impact Management Services PTY LTD	Johannesburg	11-50	15	10
19	E-Tek Consulting	Potchefstroom	11-50	15	6
20	Triplo4 Sustainable Solutions PTY LTD	Msunduzi	11-50	14	10
21	Nsovo Environmental Consulting	Johannesburg	11-50	13	9
22	Qesh Advisory Services PTY LTD	Durban	11-50	12	11
23	Nemai Consulting	Gqeberha	11-50	12	8
24	Environmental Management Group EMG	Bloemfontein	11-50	12	7
25	Inavit IQ	Weltevredenpark Johannesburg	11-50	11	5

Showing 25 of 396 esg consulting firms based in South Africa

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Esg consulting firms based in South Africa at a glance

As of Aug 28, 2026

1-10Median size (employees)

JohannesburgLargest hub · 85 HQs

144Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

290

11-50

51-200

201-500

1,001-5,000

Esg consulting firms by metro

Metro	Companies
Esg consulting firms in Johannesburg	85
Esg consulting firms in Cape Town	64
Esg consulting firms in Pretoria	24
Esg consulting firms in Sandton	21
Esg consulting firms in City Of Tshwane	10
Esg consulting firms in Durban	10
Esg consulting firms in Centurion	9

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 “esg 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 esg consulting firms are there based in South Africa?

There are 396 esg 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 esg consulting firms?

Johannesburg leads with 85 headquartered companies, followed by Cape Town (64) 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 689 verified decision-maker contacts tracked across these 396 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.