Company lists · Data refreshed September 2026

Top 24 Impact measurement consulting firms based in South Africa

Name: Impact measurement consulting firms based in South Africa
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 157 companies tracked

RevenueBase identified 157 impact measurement consulting firms headquartered in South Africa as of September 2026 and tracks 681 professional contacts across them, including 216 with verified work emails and 38 with mobile numbers. Cape Town is the largest hub.

This list covers impact measurement 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. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 3, 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 3, 2026 86% judged on-target in blind review

157Companies

681Contacts tracked

216Verified emails

38Mobile numbers

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The 24 largest impact measurement consulting firms based in South Africa

Ranked by team size

Top 24 of 157 impact measurement consulting firms based in South Africa, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to impact measurement 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	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	51-200	90 contacts →
	Indirect evidence “We are a niche firm that drives investment, commercial excellence, developmental strategies, and sustainability.” Source: RevenueBase Database · checked Sep 3, 2026
2	SEAD	Partial evidence	Cape Town, South AfricaHQ checked Sep 3, 2026	51-200	55 contacts →
	Partial evidence “SEAD Consulting is a public health management consultancy that specializes in three areas: Health Strategy; Health Development Programs; and M&E.#:The Health Strategy Division of…” Source: RevenueBase Database · checked Sep 3, 2026
3	Douglas Knowledge Partners	Partial evidence	Cape Town, South AfricaHQ checked Sep 3, 2026	11-50	26 contacts →
	Partial evidence “We help leading organisations turn ideas into impact.” Source: RevenueBase Database · checked Sep 3, 2026
4	Redflank	Partial evidence	Sandton, South AfricaHQ checked Sep 3, 2026	11-50	26 contacts →
	Partial evidence “What we do: Rated one of South Africa's top consulting firms by consulting.org (2025), Redflank is a management consulting firm that leverages its specialist resource base and…” Source: RevenueBase Database · checked Sep 3, 2026
5	Mthente Research And Consulting Services PTY LTD	Partial evidence	Claremont, South AfricaHQ checked Sep 3, 2026	11-50	24 contacts →
	Partial evidence “Who We Are: Mthente Research and Consulting Services is a proudly South African, women-led research and consulting firm, dedicated to advancing development through rigorous…” Source: RevenueBase Database · checked Sep 3, 2026
6	Mission Talent	Partial evidence	South AfricaHQ checked Sep 3, 2026	11-50	16 contacts →
	Partial evidence “Mission Talent is an executive search and talent development agency that understands the international positive impact sector and its talent requirements.” Source: RevenueBase Database · checked Sep 3, 2026
7	Embedding Impact	Strong evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	1-10	14 contacts →
	Strong evidence “Capacity Building is at the core of our delivery model, ensuring that clients who've gone through our impact measurement and management approach are enabled to make data and…” Source: RevenueBase Database · checked Sep 3, 2026
8	Ep3 Environmental	Partial evidence	Johannesburg, South AfricaHQ checked Sep 3, 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 3, 2026
9	The Communication Collective	Indirect evidence	Centurion, South AfricaHQ checked Sep 3, 2026	11-50	12 contacts →
	Indirect evidence “If you are a company with a large African footprint and wide-ranging stakeholders, The Communication Collective can help you develop and roll out business communication and social…” Source: RevenueBase Database · checked Sep 3, 2026
10	Decusatio Group Of Companies	Partial evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	1-10	12 contacts →
	Partial evidence “Founded by former financial journalist and editor Marc Ashton, Decusatio is a diversified consulting business with a proven track record of delivering value for clients across…” Source: RevenueBase Database · checked Sep 3, 2026
11	Inavit IQ	Strong evidence	Weltevredenpark Johannesburg, South AfricaHQ checked Sep 3, 2026	11-50	11 contacts →
	Strong evidence “inavit iQ is a niche consulting business focusing on the key levers that will impact positively on sustainable business impact.” Source: RevenueBase Database · checked Sep 3, 2026
12	Treeshake	Indirect evidence	Sea Point, South AfricaHQ checked Sep 3, 2026	11-50	10 contacts →
	Indirect evidence “We work with game-changing clients whose offerings benefit society.” Source: RevenueBase Database · checked Sep 3, 2026
13	Sadt Consulting	Indirect evidence	Pretoria, South AfricaHQ checked Sep 3, 2026	11-50	6 contacts →
	Indirect evidence “SADT was established in 2015, by a group of friends who had an ambition to effect much needed changes in the financial sector of our economy and much more to create an employment…” Source: RevenueBase Database · checked Sep 3, 2026
14	Strategy Execution Advisers	Indirect evidence	Cape Town, South AfricaHQ checked Sep 3, 2026	1-10	5 contacts →
	Indirect evidence “Strategy Execution Advisers (SEA) has been established to advise governments and organisations that are committed to significantly improving the lives of people through quality…” Source: RevenueBase Database · checked Sep 3, 2026
15	Zukhanye Creative Consulting	Indirect evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	1-10	5 contacts →
	Indirect evidence “We believe in the transformative power of trust and commitment in business relationships.” Source: RevenueBase Database · checked Sep 3, 2026
16	EBS Advisory	Partial evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	11-50	4 contacts →
	Partial evidence “EBS Advisory is a leading ESG (environmental, social and governance) and impact modelling consultancy to business, investors, financial institutions in Africa and other emerging…” Source: RevenueBase Database · checked Sep 3, 2026
17	Elizabeth Kent Consulting	Partial evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	1-10	4 contacts →
	Partial evidence “Elizabeth Kent Consulting is a writing, communications and reporting firm with a sustainability specialism.” Source: RevenueBase Database · checked Sep 3, 2026
18	Maisha Social Solutions PTY LTD	Partial evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	1-10	4 contacts →
	Partial evidence “At Maisha, we work in a partnership model and specialize in ESG consulting, Social Performance and Governance.” Source: RevenueBase Database · checked Sep 3, 2026
19	NSI Consultants	Partial evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	1-10	4 contacts →
	Partial evidence “We pride ourselves in assisting businesses to drive sustainable growth through Impact Investing and helping NGOs carry out the phenomenal work they do to strengthen our…” Source: RevenueBase Database · checked Sep 3, 2026
20	Diphororo Development PTY LTD	Indirect evidence	Pretoria, South AfricaHQ checked Sep 3, 2026	11-50	3 contacts →
	Indirect evidence “At Diphororo Development, our name symbolises the ripple effects that drive meaningful change - echoing our dedication to creating solutions that extend far beyond the immediate…” Source: RevenueBase Database · checked Sep 3, 2026
21	BFM & Associates	Indirect evidence	Cape Town, South AfricaHQ checked Sep 3, 2026	1-10	3 contacts →
	Indirect evidence “BFM & Associates is a dynamic consultancy which aims to contribute to the successes of national and international social interventions by enthusiastically practicing our brand of…” Source: RevenueBase Database · checked Sep 3, 2026
22	Motopi Consulting	Strong evidence	Bryanston, South AfricaHQ checked Sep 3, 2026	1-10	3 contacts →
	Strong evidence “Motopi Consulting is a 100% Black-owned boutique CSI, and Social Impact Marketing Consultancy (level 1 contributor).” Source: RevenueBase Database · checked Sep 3, 2026
23	NIA Impact Invest	Partial evidence	Johannesburg, South AfricaHQ checked Sep 3, 2026	1-10	3 contacts →
	Partial evidence “We design rigorous, data-driven frameworks that help investors, funds, and enterprises strike the right balance between financial performance and measurable impact.” Source: RevenueBase Database · checked Sep 3, 2026
24	Usizo Advisory Solutions	Indirect evidence	Natal, South AfricaHQ checked Sep 3, 2026	1-10	3 contacts →
	Indirect evidence “Usizo Advisory Solutions is a dynamic consultancy firm specializing in the healthcare, education and social development sectors.” Source: RevenueBase Database · checked Sep 3, 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: impact measurement 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 impact measurement consulting firms.
Partial evidence: Its own public description names part of impact measurement consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name impact measurement 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 24 of 157 impact measurement consulting firms based in South Africa

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Impact measurement consulting firms based in South Africa at a glance

As of Sep 3, 2026

31.7%Verified-email coverage

5.6%Mobile-number coverage

4.3Average contacts per company

1-10Median size (employees)

26.1%Largest-city concentration · Cape Town

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

124

11-50

51-200

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

1731–60

12061–90

7890–180

1180+

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 impact measurement 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 South Africa whose own description of what they do matches “impact measurement 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 impact measurement 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 impact measurement consulting firms, 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, 216 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 3, 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.

Impact measurement consulting firms by metro

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 impact measurement 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 impact measurement consulting firms are there based in South Africa?

RevenueBase identified 157 impact measurement consulting firms 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?

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

Which city has the most impact measurement consulting firms?

Cape Town leads with 41 headquartered companies, followed by Johannesburg (39) and Pretoria (14).

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 216 verified decision-maker contacts tracked across these 157 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 3, 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.