Company lists · Data refreshed September 2026

Top 25 Sustainable development nonprofits based in South Africa

Name: Sustainable development nonprofits based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 160 companies tracked

RevenueBase identified 160 sustainable development nonprofits headquartered in South Africa as of September 2026 and tracks 1,915 professional contacts across them, including 525 with verified work emails. Cape Town is the largest hub.

This list covers sustainable development nonprofits 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 22, 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 22, 2026 86% judged on-target in blind review

160Companies

1,915Contacts tracked

525Verified emails

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The 25 largest sustainable development nonprofits based in South Africa

Ranked by team size

Top 25 of 160 sustainable development nonprofits based in South Africa, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to sustainable development nonprofits: 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	Wild Impact	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 22, 2026	51-200	209 contacts →
	Indirect evidence “Wild Impact (previously known as Africa Foundation) is a registered, non-profit organisation in South Africa that uplifts, up- skills and empowers rural communities primarily…” Source: RevenueBase Database · checked Sep 22, 2026
2	Lima Rural Development Foundation	Strong evidence	Pietermaritzburg, South AfricaHQ checked Sep 22, 2026	51-200	176 contacts →
	Strong evidence “Lima Rural Development Foundation promotes dignified, sustainable and transformative community growth across South Africa and worldwide.” Source: RevenueBase Database · checked Sep 22, 2026
3	Greenpeace Africa	Indirect evidence	Randburg, South AfricaHQ checked Sep 22, 2026	51-200	169 contacts →
	Indirect evidence “Greenpeace is an independent global campaigning network that acts to change attitudes and behaviour, protect and conserve the environment and promote peace.” Source: RevenueBase Database · checked Sep 22, 2026
4	TAU Mining	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 22, 2026	501-1,000	149 contacts →
	Indirect evidence “Our purpose is to make a difference by developing natural resources, improving people’s lives now and for future generations to come.” Source: RevenueBase Database · checked Sep 22, 2026
5	WWF South Africa	Indirect evidence	Cape Town, South AfricaHQ checked Sep 22, 2026	51-200	136 contacts →
	Indirect evidence “WWF’s mission is to build a future in which people and nature thrive.” Source: RevenueBase Database · checked Sep 22, 2026
6	Kagiso Trust KT	Strong evidence	Johannesburg, South AfricaHQ checked Sep 22, 2026	11-50	75 contacts →
	Strong evidence “Overcoming poverty through sustainable development programmes in education, institutional capacity building, socioeconomic development & financial sustainability” Source: RevenueBase Database · checked Sep 22, 2026
7	Nature Connect	Indirect evidence	Cape Town, South AfricaHQ checked Sep 22, 2026	51-200	63 contacts →
	Indirect evidence “Nature Connect is dedicated to preserving South Africa’s biodiversity through various educational and conservation initiatives.” Source: RevenueBase Database · checked Sep 22, 2026
8	Greencape	Indirect evidence	Cape Town, South AfricaHQ checked Sep 22, 2026	51-200	53 contacts →
	Indirect evidence “GreenCape is a non-profit organisation that drives the widespread adoption of economically viable green economy solutions in South Africa.” Source: RevenueBase Database · checked Sep 22, 2026
9	The Sustainability Institute	Partial evidence	Stellenbosch, South AfricaHQ checked Sep 22, 2026	51-200	43 contacts →
	Partial evidence “The Sustainability Institute is a non-profit trust, founded in and based in Stellenbosch.” Source: RevenueBase Database · checked Sep 22, 2026
10	Greenpop	Indirect evidence	Cape Town, South AfricaHQ checked Sep 22, 2026	11-50	41 contacts →
	Indirect evidence “The Greenpop Foundation NPC is a leading environmental non-profit organisation (NPO#: 151-411 NPO; PBO#: 930050622) based in Cape Town, South Africa.” Source: RevenueBase Database · checked Sep 22, 2026
11	Conservation South Africa	Partial evidence	Cape Town, South AfricaHQ checked Sep 22, 2026	51-200	39 contacts →
	Partial evidence “Conservation South Africa supports economic development that values nature because people need nature to thrive.” Source: RevenueBase Database · checked Sep 22, 2026
12	South African Education Project Saep	Indirect evidence	Cape Town, South AfricaHQ checked Sep 22, 2026	11-50	38 contacts →
	Indirect evidence “SAEP is an award-winning non-profit dedicated to supporting children & youth in the underserved community of Philippi, Cape Town.” Source: RevenueBase Database · checked Sep 22, 2026
13	Lessons In Conservation	Indirect evidence	Pretoria, South AfricaHQ checked Sep 22, 2026	51-200	34 contacts →
	Indirect evidence “Lessons in Conservation (LiC) is a youth led non-profit organization that aims to educate the youth of Southern Africa about conservation and the environmental issues we are…” Source: RevenueBase Database · checked Sep 22, 2026
14	The Homestead	Indirect evidence	Nambiti Private Game Reserve, South AfricaHQ checked Sep 22, 2026	51-200	32 contacts →
	Indirect evidence “The Homestead is uniquely designed and run to encourage people to experience and understand the positive impact they can have in this most beautiful African reserve.” Source: RevenueBase Database · checked Sep 22, 2026
15	Royal Bafokeng Institute	Partial evidence	Phokeng, South AfricaHQ checked Sep 22, 2026	51-200	26 contacts →
	Partial evidence “Elevating education for a sustainable future.” Source: RevenueBase Database · checked Sep 22, 2026
16	SEED	Partial evidence	Cape Town, South AfricaHQ checked Sep 22, 2026	11-50	25 contacts →
	Partial evidence “SEED is a Cape Town based nonprofit working with children, youth, and communities in the Cape Flats to build practical skills, strengthen local food systems, and reconnect people…” Source: RevenueBase Database · checked Sep 22, 2026
17	Grootbos Green Futures Foundation	Indirect evidence	Gansbaai, South AfricaHQ checked Sep 22, 2026	11-50	22 contacts →
	Indirect evidence “The Grootbos Foundation was established to conserve the Cape Floral Kingdom and uplift the local community through research, training, educating and empowering children, youth and…” Source: RevenueBase Database · checked Sep 22, 2026
18	Daktari Bush School & Wildlife Orphanage	Indirect evidence	Hoedspruit, South AfricaHQ checked Sep 22, 2026	1-10	21 contacts →
	Indirect evidence “DAKTARI is a non profit company located near Kruger National Park, South Africa.” Source: RevenueBase Database · checked Sep 22, 2026
19	Duct Rivers	Partial evidence	Pietermaritzburg, South AfricaHQ checked Sep 22, 2026	51-200	20 contacts →
	Partial evidence “DUCT is an NPO that is dedicated to environmental conservation and restoration, with a focus on rehabilitating rivers and promoting sustainable livelihoods.” Source: RevenueBase Database · checked Sep 22, 2026
20	Zoë-Life	Indirect evidence	Durban, South AfricaHQ checked Sep 22, 2026	11-50	20 contacts →
	Indirect evidence “Zoë-Life is a non-profit company based in South Africa, building resilient futures for children, youth and their ecosystems through social impact programming” Source: RevenueBase Database · checked Sep 22, 2026
21	I AM Water Ocean Conservation Foundation	Indirect evidence	Cape Town, South AfricaHQ checked Sep 22, 2026	1-10	19 contacts →
	Indirect evidence “I AM WATER believes in ocean conservation through human experience and works under the ethos of we protect what we love and we love what we have experienced.” Source: RevenueBase Database · checked Sep 22, 2026
22	Green Development Foundation	Partial evidence	Kempton Park, South AfricaHQ checked Sep 22, 2026	n/a	15 contacts →
	Partial evidence “The Green Development Foundation is an NPO that is committed to sustained upliftment of communities and preservation of the environment.” Source: RevenueBase Database · checked Sep 22, 2026
23	The Green Connection	Indirect evidence	Cape Town, South AfricaHQ checked Sep 22, 2026	1-10	15 contacts →
	Indirect evidence “The Green Connection was established in South Africa in and registered as a Not for Profit Organisation (NGO) in 2010.” Source: RevenueBase Database · checked Sep 22, 2026
24	Sabine Plattner African Charities Spac	Indirect evidence	Cape Town, South AfricaHQ checked Sep 22, 2026	11-50	13 contacts →
	Indirect evidence “Sabine Plattner African Charities (SPAC) focusses on the protection of nature, with an emphasis on the rainforest in the Congo-basin, through education.” Source: RevenueBase Database · checked Sep 22, 2026
25	Conservation Exposure Education & Training Ceet	Indirect evidence	Lusikisiki, South AfricaHQ checked Sep 22, 2026	1-10	9 contacts →
	Indirect evidence “CEET in its mission and vision, encapsulates the organization's foundations in contributing to the growth of conservation, education, and the green economy.” Source: RevenueBase Database · checked Sep 22, 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: sustainable development nonprofits. 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 sustainable development nonprofits.
Partial evidence: Its own public description names part of sustainable development nonprofits, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name sustainable development nonprofits. 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 160 sustainable development nonprofits based in South Africa

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Sustainable development nonprofits based in South Africa at a glance

As of Sep 22, 2026

27.4%Verified-email coverage

12.0Average contacts per company

1-10Median size (employees)

21.2%Largest-city concentration · Cape Town

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

10001+

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 160 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 sustainable development nonprofits, 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 “sustainable development nonprofits”. 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 sustainable development nonprofits), 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 sustainable development nonprofits, 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, 525 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 22, 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.

Sustainable development nonprofits by metro

Sustainable development nonprofits in Cape Town34

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 sustainable development nonprofits, 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 sustainable development nonprofits are there based in South Africa?

RevenueBase identified 160 sustainable development nonprofits 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?

Wild Impact, headquartered in Sandown, tops this list with the largest team on record.

Which city has the most sustainable development nonprofits?

Cape Town leads with 34 headquartered companies, followed by Johannesburg (18) and Pretoria (10).

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 525 verified decision-maker contacts tracked across these 160 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 22, 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.