Company lists · Data refreshed September 2026
Top 24 Impact measurement consulting firms based in South Africa
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, how directly it supports the match, 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 SmartSearch, 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.
The 24 largest impact measurement consulting firms based in South Africa
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 90 | ||||
“We are a niche firm that drives investment, commercial excellence, developmental strategies, and sustainability.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | SEADPartial evidence | 55 | |||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 26 | ||||
“We help leading organisations turn ideas into impact.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 26 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | Mthente Research And Consulting Services PTY LTDPartial evidence | 24 | |||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 16 | ||||
“Mission Talent is an executive search and talent development agency that understands the international positive impact sector and its talent requirements.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 14 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 12 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 12 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 12 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 11 | ||||
“inavit iQ is a niche consulting business focusing on the key levers that will impact positively on sustainable business impact.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | TreeshakeIndirect evidence | 10 | |||
“We work with game-changing clients whose offerings benefit society.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | Sadt ConsultingIndirect evidence | 6 | |||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | Strategy Execution AdvisersIndirect evidence | 5 | |||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 5 | ||||
“We believe in the transformative power of trust and commitment in business relationships.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 4 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 4 | ||||
“Elizabeth Kent Consulting is a writing, communications and reporting firm with a sustainability specialism.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | Maisha Social Solutions PTY LTDPartial evidence | 4 | |||
“At Maisha, we work in a partnership model and specialize in ESG consulting, Social Performance and Governance.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | NSI ConsultantsPartial evidence | 4 | |||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | 3 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | 3 | ||||
“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: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | Motopi ConsultingStrong evidence | 3 | |||
“Motopi Consulting is a 100% Black-owned boutique CSI, and Social Impact Marketing Consultancy (level 1 contributor).” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | NIA Impact InvestPartial evidence | 3 | |||
“We design rigorous, data-driven frameworks that help investors, funds, and enterprises strike the right balance between financial performance and measurable impact.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | Usizo Advisory SolutionsIndirect evidence | 3 | |||
“Usizo Advisory Solutions is a dynamic consultancy firm specializing in the healthcare, education and social development sectors.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
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, 2026Companies by employee count
Verified emails by last verification
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 evidence 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 SmartSearch, 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.
- 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 an evidence 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
- Impact measurement consulting firms in Cape Town41
- Impact measurement consulting firms in Johannesburg39
Frequently asked
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 SmartSearch, 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.
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