Company lists · Data refreshed September 2026

Top 25 Esg strategy consulting firms based in Johannesburg, South Africa

Name: Esg strategy consulting firms based in Johannesburg, South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 30, 2026 172 companies tracked

RevenueBase identified 172 esg strategy consulting firms headquartered in Johannesburg, South Africa as of September 2026 and tracks 867 professional contacts across them, including 298 with verified work emails. Across South Africa, Johannesburg is the largest hub for this category.

This list covers esg strategy consulting firms headquartered in Johannesburg, 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 30, 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 30, 2026 86% judged on-target in blind review

172Companies

867Contacts tracked

298Verified emails

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The 25 largest esg strategy consulting firms based in Johannesburg, South Africa

Ranked by team size

Top 25 of 172 esg strategy consulting firms based in Johannesburg, South Africa, ranked by team size, largest first. Data refreshed Sep 30, 2026. RevenueBase Smart Search rates how each company's information relates to esg strategy consulting 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	Siyakha Consulting	Partial evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	51-200	90 contacts →
	Partial evidence “We are a niche firm that drives investment, commercial excellence, developmental strategies, and sustainability.” Source: RevenueBase Database · checked Sep 30, 2026
2	Ibis Consulting NOW SLR	Strong evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	51-200	43 contacts →
	Strong evidence “IBIS Consulting is an emerging market ESG and sustainable finance advisory business that works with clients to unlock value and improve their environmental and social performance.” Source: RevenueBase Database · checked Sep 30, 2026
3	Synergy Global Consulting LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	11-50	37 contacts →
	Partial evidence “Synergy Global Consulting Ltd (Synergy) is an independent international consulting company that works with natural resource and infrastructure sectors operating in challenging…” Source: RevenueBase Database · checked Sep 30, 2026
4	Solid Green	Partial evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	11-50	36 contacts →
	Partial evidence “Solid Green Consulting is a young and energetic company enthusiastic about advancing sustainability in the built environment.” Source: RevenueBase Database · checked Sep 30, 2026
5	Step Advisory	Partial evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	11-50	27 contacts →
	Partial evidence “Step Advisory is a boutique management consulting firm focused on fuelling business growth.” Source: RevenueBase Database · checked Sep 30, 2026
6	Z.A.Zen Consulting PTY LTD	Strong evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	1-10	26 contacts →
	Strong evidence “Since 2002, Z.A.ZEN Consulting (Pty) Ltd has been providing strategic solutions for government organizations, international organizations and corporations, and non-profits, among…” Source: RevenueBase Database · checked Sep 30, 2026
7	Risk Insights PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	11-50	22 contacts →
	Indirect evidence “Risk Insights is a risk management and consultancy boutique company focused on making sustanable world reality.” Source: RevenueBase Database · checked Sep 30, 2026
8	Savannah Environmental PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	11-50	21 contacts →
	Indirect evidence “Through undertaking a broad range of environmental studies, Savannah Environmental has gained extensive experience with regards to environmental legislation requirements and…” Source: RevenueBase Database · checked Sep 30, 2026
9	Promethium Carbon	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	11-50	19 contacts →
	Indirect evidence “Promethium Carbon is a specialist advisory firm focusing on carbon and climate change.” Source: RevenueBase Database · checked Sep 30, 2026
10	Brundtland Consulting	Partial evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	1-10	19 contacts →
	Partial evidence “Brundtland Consulting is a South African management consulting firm specialized in climate change, green economy and renewable energy.” Source: RevenueBase Database · checked Sep 30, 2026
11	Umsizi Sustainable Social Solutions	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	11-50	16 contacts →
	Indirect evidence “Umsizi Sustainable Social Solutions (Umsizi) specialises in designing customised solutions and implementing effective programmes to promote sustainable socio-economic development.” Source: RevenueBase Database · checked Sep 30, 2026
12	Environmental Impact Management Services PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	11-50	15 contacts →
	Partial evidence “Environmental Impact Management Services (Pty) Ltd (EIMS) was founded in 1993 and has steadily grown to be a significant player in the environmental management consulting industry…” Source: RevenueBase Database · checked Sep 30, 2026
13	Gravitas Minerals	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	1-10	14 contacts →
	Indirect evidence “At Gravitas, we collaborate with our clients to reduce their environmental liability.” Source: RevenueBase Database · checked Sep 30, 2026
14	Nsovo Environmental Consulting	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	11-50	13 contacts →
	Indirect evidence “Our specialist area of focus is the assessment of multifaceted projects, including the establishment of linear developments, bulk infrastructure, power generation and…” Source: RevenueBase Database · checked Sep 30, 2026
15	Ep3 Environmental	Partial evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	11-50	12 contacts →
	Partial evidence “EP3 Environmental (Pty) Ltd was established by Eben van Schalkwyk in 2013 and is a multi-disciplinary consulting firm that provides Environmental and Sustainability consulting…” Source: RevenueBase Database · checked Sep 30, 2026
16	NTC Group PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	11-50	9 contacts →
	Partial evidence “We are an Environmental Compliance and ESG Advisory firm offering environmental compliance and ESG services to the built infrastructure sector.” Source: RevenueBase Database · checked Sep 30, 2026
17	Delta Carbon	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	1-10	9 contacts →
	Indirect evidence “Delta Carbon is an integrated energy services and decarbonisation advisory company.” Source: RevenueBase Database · checked Sep 30, 2026
18	Envision Advisory Services	Strong evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	11-50	7 contacts →
	Strong evidence “Envision Advisory Services (EAS) is a purpose-driven management consulting firm that partners with organisations to solve complex strategic, operational, capital, and…” Source: RevenueBase Database · checked Sep 30, 2026
19	Xpotential Mining Services	Partial evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	1-10	6 contacts →
	Partial evidence “A NEXT generation international service provider with expertise in ESG, mining engineering and mineral exploration.” Source: RevenueBase Database · checked Sep 30, 2026
20	Elizabeth Kent Consulting	Partial evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	1-10	5 contacts →
	Partial evidence “Elizabeth Kent Consulting is a writing, communications and reporting firm with a sustainability specialism.” Source: RevenueBase Database · checked Sep 30, 2026
21	Greenfield Sustainable Group	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	11-50	5 contacts →
	Indirect evidence “Greenfield denotes pristine resources with untapped potential, operating at peak capacity.” Source: RevenueBase Database · checked Sep 30, 2026
22	Excellous Group	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	1-10	5 contacts →
	Indirect evidence “The Excellous Group is a 100% Black women-owned, privately held organisation with cross-sector expertise.” Source: RevenueBase Database · checked Sep 30, 2026
23	Busara Leadership Partners	Strong evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	1-10	5 contacts →
	Strong evidence “Busara Leadership Partners, a boutique strategic advisory and consulting firm that was established in 2009.” Source: RevenueBase Database · checked Sep 30, 2026
24	Tushiyah SME Advisory Services	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	11-50	5 contacts →
	Indirect evidence “Tushiyah Advisory Services is an award winning company and is one of the leading implementers of ESD (Enterprise and Supplier Development) in South Africa.” Source: RevenueBase Database · checked Sep 30, 2026
25	Brane Afrika PTY LTD	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 30, 2026	1-10	5 contacts →
	Indirect evidence “Brane Afrika is a young, agile and dynamic advisory firm driven by the belief sustainability is not just an altruistic objective but a commercial priority.” Source: RevenueBase Database · checked Sep 30, 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: esg strategy consulting 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 esg strategy consulting firms.
Partial evidence: Its own public description names part of esg strategy consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name esg strategy consulting 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 172 esg strategy consulting firms based in Johannesburg, South Africa

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Esg strategy consulting firms based in Johannesburg, South Africa at a glance

As of Sep 30, 2026

34.4%Verified-email coverage

5.0Average contacts per company

1-10Median size (employees)

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

128

11-50

51-200

1,001-5,000

Email recency for this list is measured across the whole South Africa list rather than for Johannesburg, so it is reported there. Company counts and contact totals on this page are exact for Johannesburg, over 172 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 esg strategy consulting 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 Johannesburg, South Africa whose own description of what they do matches “esg strategy consulting 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 esg strategy consulting 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 esg strategy consulting firms, and records with no verified work email. Companies headquartered outside Johannesburg 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, 298 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 30, 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.

Esg strategy consulting firms by metro in South Africa

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 esg strategy consulting 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 esg strategy consulting firms are there based in Johannesburg, South Africa?

RevenueBase identified 172 esg strategy consulting firms headquartered in Johannesburg, 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?

Siyakha Consulting, headquartered in Johannesburg, tops this list with the largest team on record.

Which city in South Africa has the most esg strategy consulting firms?

Johannesburg leads South Africa with 172 headquartered companies, followed by Cape Town (112) and Pretoria (49).

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 298 verified decision-maker contacts tracked across these 172 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 30, 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.