Company lists · Data refreshed September 2026

Top 25 Impact consulting firms based in Johannesburg, South Africa

Name: Impact 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 481 companies tracked

RevenueBase identified 481 company matches for impact consulting firms associated with Johannesburg, South Africa as of September 2026 and tracks 2,831 professional contacts across them, including 961 with verified work emails. Across South Africa, Johannesburg is the largest hub for this category.

This list covers company matches for impact consulting firms associated with Johannesburg, South Africa, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 30, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 30, 2026 How this list was built

481Companies

2,831Contacts tracked

961Verified emails

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The 25 largest impact consulting firms based in Johannesburg, South Africa

Ranked by team size

Top 25 of 481 company matches for impact consulting firms based in Johannesburg, South Africa, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 30, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Genesis Analytics	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	201-500	355 contacts →
	Exact match “Genesis Analytics has worked in more than 115 countries.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
2	MAC Consulting	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	51-200	197 contacts →
	Exact match “Who we are: MAC is a Management Consultancy based in South Africa.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
3	Letsema	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	51-200	108 contacts →
	Exact match “Founded in 1996, Letsema is a black-owned management consulting firm at the heart of a diversified investment group.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
4	Siyakha Consulting	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	51-200	90 contacts →
	Exact match “We are a niche firm that drives investment, commercial excellence, developmental strategies, and sustainability.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
5	Africa International Advisors	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	61 contacts →
	Exact match “Africa International Advisors is a management consulting company based in Johannesburg, South Africa with extensive experience in the public and private sectors in Africa.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
6	Fraser Mcgill	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	51-200	56 contacts →
	Exact match “At Fraser McGill we are 100% mining sector focused and with locations in Johannesburg South Africa, Perth Australia and Gaborone Botswana we are active in Southern Africa and the…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
7	Urban Dynamics Gauteng INC	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	51-200	53 contacts →
	Exact match “Urban Dynamics is a multi-disciplinary professional services company offering its private and public clients a comprehensive range of professional consulting services.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
8	Mindcor-Intersearch	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	41 contacts →
	Exact match “Founded in South Africa in 1998, Mindcor-InterSearch is a leading Executive Search, Premium Recruitment and Talent Advisory firm and the exclusive Southern African partner of…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
9	Synergy Global Consulting LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	37 contacts →
	Exact match “Synergy Global Consulting Ltd (Synergy) is an independent international consulting company that works with natural resource and infrastructure sectors operating in challenging…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
10	Strategnos	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	34 contacts →
	Exact match “Strategnos was established in with the belief that business success can be achieved through disciplined execution of strategy supported by industry-specific knowledge.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
11	Modern Centric Holdings	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	33 contacts →
	Exact match “Modern Centric Holdings (MCH) is an empowerment, sustainability, and transformation firm delivering inclusive human capital and social-impact solutions.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
12	Fevertree Consulting	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	33 contacts →
	Exact match “FeverTreeConsulting is a dynamic, truly indigenous, high value-add consulting company dedicated to progress and development across all sectors in South Africa and on the continent.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
13	Fullstream Business Services FBS	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	31 contacts →
	Exact match “FBS professionals are experts and leaders in their field.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
14	Change Logic Consulting Services	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	51-200	28 contacts →
	Exact match “Change Logic was founded in 2002 on the back of a thriving internal Change Management Practice that was initially drafted in 1998.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
15	Step Advisory	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	27 contacts →
	Exact match “Step Advisory is a boutique management consulting firm focused on fuelling business growth.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
16	GMC Glashoff Maughan Consulting	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	27 contacts →
	Exact match “Glashoff Maughan Consulting (GMC) provides you with rare and valuable subject matter expertise, methodologies and tools to assist you, hands on, with your business challenges -…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
17	Africsearch	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	26 contacts →
	Exact match “AfricSearch is a Human Resources consulting firm.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
18	Z.A.Zen Consulting PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	1-10	26 contacts →
	Exact match “Since 2002, Z.A.ZEN Consulting (Pty) Ltd has been providing strategic solutions for government organizations, international organizations and corporations, and non-profits, among…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
19	Analytix Engine	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	25 contacts →
	Exact match “Most organizations have more data than they realize.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
20	Savannah Environmental PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	21 contacts →
	Exact match “Through undertaking a broad range of environmental studies, Savannah Environmental has gained extensive experience with regards to environmental legislation requirements and…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
21	Nambe Financial Consultants	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	21 contacts →
	Exact match “Nambe Financial Consultants was established in 2011 to alleviate the shortage of Chartered Accountants assisting Small and Medium Entities.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
22	FOX Consulting LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	20 contacts →
	Exact match “Fox Consulting specialises in providing practical advice, constructing, and executing business growth strategies for our clients.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
23	Brundtland Consulting	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	1-10	19 contacts →
	Exact match “Brundtland Consulting is a South African management consulting firm specialized in climate change, green economy and renewable energy.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
24	Kettle Consulting	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	11-50	18 contacts →
	Exact match “Kettle Consulting has been in operation since 2010 with the view of providing access and professional consulting services to all participants in the South African economy.” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase
25	Vantage Advisory PTY LTD	Exact match	Johannesburg, South AfricaHQ recorded Sep 30, 2026	1-10	17 contacts →
	Exact match “Vantage Advisory (Pty) Ltd focusses on advisory solutions primarily in Accounting\| Audit\| Tax\| Business Advisory\| Local Content Measurement and Verification\| Learning &…” Recorded in the RevenueBase company graph · Sep 30, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “impact consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 481 impact consulting firms based in Johannesburg, South Africa

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Impact consulting firms based in Johannesburg, South Africa at a glance

As of Sep 30, 2026

33.9%Verified-email coverage

5.9Average contacts per company

1-10Median size (employees)

Sep 30, 2026Page data refreshed

Companies by employee count

1-10

363

11-50

51-200

201-500

1,001-5,000

5,001-10,000

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 481 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Johannesburg, South Africa whose business descriptions match “impact consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 961 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Impact consulting firms by metro in South Africa

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “impact consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many impact consulting firms are there based in Johannesburg, South Africa?

RevenueBase identified 481 company matches for impact consulting firms associated with Johannesburg, South Africa as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Genesis Analytics tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in South Africa has the most impact consulting firms?

Johannesburg leads South Africa with 481 company records, followed by Cape Town (288) and Pretoria (117).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 961 professional contacts with verified work emails tracked across these 481 companies; direct dials are available where recorded.

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 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.