Company lists · Data refreshed September 2026

Top 25 Green building consultants based in South Africa

Name: Green building consultants based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 86 companies tracked

RevenueBase identified 86 green building consultants headquartered in South Africa as of September 2026 and tracks 500 professional contacts across them, including 166 with verified work emails. Johannesburg is the largest hub.

This list covers green building consultants headquartered in 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 16, 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 16, 2026 86% judged on-target in blind review

86Companies

500Contacts tracked

166Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest green building consultants based in South Africa

Ranked by team size

Top 25 of 86 green building consultants based in South Africa, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to green building consultants: 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	Terramanzi Group	Indirect evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	49 contacts →
	Indirect evidence “Terramanzi Group is a leading Cape Town based multi-disciplinary environmental firm.” Source: RevenueBase Database · checked Sep 16, 2026
2	Green Building Council South Africa Gbcsa	Strong evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	42 contacts →
	Strong evidence “The Green Building Council of South Africa (GBCSA) is an independent, non-profit organisation, established in September 2007 to promote green building in South Africa’s commercial…” Source: RevenueBase Database · checked Sep 16, 2026
3	Solid Green	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 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 16, 2026
4	Brundtland Consulting	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 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 16, 2026
5	Ecolution Consulting	Strong evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	17 contacts →
	Strong evidence “Ecolution Consulting is a green building consultancy demonstrating that responsible design is the most practical and efficient way to build for the future.” Source: RevenueBase Database · checked Sep 16, 2026
6	Solutionstation Consulting Engineers	Indirect evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	13 contacts →
	Indirect evidence “SolutionStation Consulting Engineers is a closed corporation which was formed in 2001 and is a certified BEE Level 2 contributor with a recognition level of 125% in terms of the…” Source: RevenueBase Database · checked Sep 16, 2026
7	Ep3 Environmental	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	12 contacts →
	Indirect 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 16, 2026
8	Daffonchio Architects	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	10 contacts →
	Indirect evidence “We are at the forefront of sustainable architecture in Africa.” Source: RevenueBase Database · checked Sep 16, 2026
9	Delta Carbon	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	1-10	9 contacts →
	Indirect evidence “Delta Carbon is an integrated energy services and decarbonisation advisory company.” Source: RevenueBase Database · checked Sep 16, 2026
10	Imbue Sustainability	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	1-10	9 contacts →
	Partial evidence “Imbue Sustainability is a leading South African sustainability consultancy specialising in solar and renewable energy solutions and utility optimisation, enhancing the…” Source: RevenueBase Database · checked Sep 16, 2026
11	PJC Partners	Strong evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	1-10	8 contacts →
	Strong evidence “PJC is an environmental + sustainable design consultancy in the building industry focusing on climate responsive architecture, bioclimatic design and operational building…” Source: RevenueBase Database · checked Sep 16, 2026
12	Urban Earth	Partial evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	1-10	8 contacts →
	Partial evidence “Urban Earth is a South African sustainability consultancy established in 2010.” Source: RevenueBase Database · checked Sep 16, 2026
13	Isao Consulting	Indirect evidence	Sandton, South AfricaHQ checked Sep 16, 2026	11-50	6 contacts →
	Indirect evidence “Isao is a South Sotho word meaning 'Future' or 'next season'.” Source: RevenueBase Database · checked Sep 16, 2026
14	Treysta ZA	Indirect evidence	Bloemfontein, South AfricaHQ checked Sep 16, 2026	1-10	5 contacts →
	Indirect evidence “Construction, Consultations and Project Management” Source: RevenueBase Database · checked Sep 16, 2026
15	Clean Kilowatt Energy	Indirect evidence	Somerset West, South AfricaHQ checked Sep 16, 2026	11-50	4 contacts →
	Indirect evidence “We are dedicated to transforming the energy landscape by providing cutting-edge consulting services with a strong focus on renewable energy integration.” Source: RevenueBase Database · checked Sep 16, 2026
16	Converge Consulting PTY LTD	Strong evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	11-50	4 contacts →
	Strong evidence “CONVERGE CONSULTING is a Building Services Consultancy specialising in Electrical and Electronics Engineering.” Source: RevenueBase Database · checked Sep 16, 2026
17	Ecosteps	Strong evidence	Maruleng, South AfricaHQ checked Sep 16, 2026	1-10	4 contacts →
	Strong evidence “Consultancy/Developer in the Renewable Energy and alternate building Industry.” Source: RevenueBase Database · checked Sep 16, 2026
18	VMG Consultants	Partial evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	11-50	4 contacts →
	Partial evidence “VMG Consultants have been awarded Mechanical Engineering Consulting company of the year, two years running.” Source: RevenueBase Database · checked Sep 16, 2026
19	Greenplan Consultants PTY LTD	Strong evidence	Cape Town, South AfricaHQ checked Sep 16, 2026	1-10	3 contacts →
	Strong evidence “Greenplan Consultants (Pty) Ltd was founded in 2007 after realising the huge impact buildings have on energy and building material resources.” Source: RevenueBase Database · checked Sep 16, 2026
20	Green GAP Consulting	Partial evidence	Durban, South AfricaHQ checked Sep 16, 2026	1-10	3 contacts →
	Partial evidence “Green Gap Consulting is committed to walking with businesses on their sustainability journey.” Source: RevenueBase Database · checked Sep 16, 2026
21	HFW Consulting South Africa	Partial evidence	Durban, South AfricaHQ checked Sep 16, 2026	11-50	3 contacts →
	Partial evidence “HFW Consulting is a privately managed, environmentally conscious building service consulting and construction management practice.” Source: RevenueBase Database · checked Sep 16, 2026
22	Cityco Construction	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	1-10	2 contacts →
	Indirect evidence “We are builders and project managers.” Source: RevenueBase Database · checked Sep 16, 2026
23	Misplon	Strong evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	1-10	2 contacts →
	Strong evidence “Misplon Green Building Consulting specialises in assisting property investors who are orientating their property portfolios towards “going green” and who need help in taking…” Source: RevenueBase Database · checked Sep 16, 2026
24	Black Swan Sustainability	Strong evidence	Pretoria, South AfricaHQ checked Sep 16, 2026	1-10	2 contacts →
	Strong evidence “Black-Swan has a keen interest in Sustainability and Green Building Design.” Source: RevenueBase Database · checked Sep 16, 2026
25	Greendesign Africa	Strong evidence	Johannesburg, South AfricaHQ checked Sep 16, 2026	1-10	2 contacts →
	Strong evidence “Greendesign, a multi-award winning engineering consulting firm specialising in the design and certification of green buildings and precincts across Africa, is currently overseeing…” Source: RevenueBase Database · checked Sep 16, 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: green building consultants. 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 green building consultants.
Partial evidence: Its own public description names part of green building consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name green building consultants. 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 86 green building consultants based in South Africa

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 166 reachable decision-makers.

Free signup · no credit card

View the full list →

Green building consultants based in South Africa at a glance

As of Sep 16, 2026

33.2%Verified-email coverage

5.8Average contacts per company

1-10Median size (employees)

24.4%Largest-city concentration · Johannesburg

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured worldwide rather than for South Africa, so it is reported there. Company counts and contact totals on this page are exact for South Africa, over 86 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 green building consultants, 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 South Africa whose own description of what they do matches “green building consultants”. 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 green building consultants), 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 green building consultants, and records with no verified work email. Companies headquartered outside South Africa 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, 166 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 16, 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.

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 green building consultants, 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 green building consultants are there based in South Africa?

RevenueBase identified 86 green building consultants headquartered in 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?

Terramanzi Group, headquartered in Cape Town, tops this list with the largest team on record.

Which city has the most green building consultants?

Johannesburg leads with 21 headquartered companies, followed by Cape Town (20) and Pretoria (9).

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 166 verified decision-maker contacts tracked across these 86 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 16, 2026.

Ready to reach these companies? Verified emails and direct dials for all 86 green building consultants based in South Africa. Start with a free account, no credit card.

Download this list →

Related lists

Green building consultants by geography

Browse the directory

Browse: Companies home · All South Africa lists · All Green building consultants lists · New lists

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.