Company lists · Data refreshed September 2026

Top 25 Organizational development consulting firms based in Johannesburg, South Africa

Name: Organizational development 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 5, 2026 647 companies tracked

RevenueBase identified 647 organizational development consulting firms headquartered in Johannesburg, South Africa as of September 2026 and tracks 3,387 professional contacts across them, including 983 with verified work emails. Johannesburg is the largest hub.

This list covers organizational development consulting firms headquartered in Johannesburg, 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 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

647Companies

3,387Contacts tracked

983Verified emails

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The 25 largest organizational development consulting firms based in Johannesburg, South Africa

Ranked by team size

Top 25 of 647 organizational development consulting firms based in Johannesburg, South Africa, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names organizational development consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	South African National Blood ServicePartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	n/a	521
	“Life Coach, Neuro-Linguistic Programming (NLP) Practitioner, People Development, Talent Development & Management, Change Management, Organisational Development” Source: company website · checked Sep 5, 2026
2	LRMGIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	201-500	258
	“We help organisations turn capability into performance.” Source: company website · checked Sep 5, 2026
3	MAC ConsultingIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	51-200	197
	“Who we are: MAC is a Management Consultancy based in South Africa.” Source: company website · checked Sep 5, 2026
4	Africa International AdvisorsPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	61
	“Africa International Advisors is a management consulting company based in Johannesburg, South Africa with extensive experience in the public and private sectors in Africa.” Source: company website · checked Sep 5, 2026
5	Urban Dynamics Gauteng INCPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	51-200	53
	“Urban Dynamics is a multi-disciplinary professional services company offering its private and public clients a comprehensive range of professional consulting services.” Source: company website · checked Sep 5, 2026
6	OctoberIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	51-200	50
	“The operating system for organisational performance.” Source: company website · checked Sep 5, 2026
7	Mindcor-IntersearchIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	41
	“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…” Source: company website · checked Sep 5, 2026
8	Global Business Solutions SAPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	51-200	37
	“Since 1989, Global Business Solutions (GBS) has evolved from a dynamic start-up to a leading consulting and training firm in Workforce Solutions, Leadership/EQ, and Digital…” Source: company website · checked Sep 5, 2026
9	Bruniquel & Associates PTY LTDStrong evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	34
	“Established in 1981, Bruniquel & Associates have specialised in Industrial Relations, Diversity and Leadership Training, HR Consulting and Skills Development for 31 years.” Source: company website · checked Sep 5, 2026
10	Effectiveness Company & Execution BOXPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	201-500	34
	“The Effectiveness Company is a vendor neutral outsourcing company providing outsourcing, consulting, training & recruitment services.” Source: company website · checked Sep 5, 2026
11	FreethinkingIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	51-200	33
	“We’re problem diagnosticians and solvers that offer value-driven design through business-oriented thinking.” Source: company website · checked Sep 5, 2026
12	Modern Centric HoldingsIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	33
	“Modern Centric Holdings (MCH) is an empowerment, sustainability, and transformation firm delivering inclusive human capital and social-impact solutions.” Source: company website · checked Sep 5, 2026
13	Fevertree ConsultingStrong evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	33
	“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.” Source: company website · checked Sep 5, 2026
14	Fullstream Business Services FBSIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	31
	“FBS professionals are experts and leaders in their field.” Source: company website · checked Sep 5, 2026
15	Change Logic Consulting ServicesIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	51-200	28
	“Change Logic was founded in 2002 on the back of a thriving internal Change Management Practice that was initially drafted in 1998.” Source: company website · checked Sep 5, 2026
16	Step AdvisoryPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	27
	“Step Advisory is a boutique management consulting firm focused on fuelling business growth.” Source: company website · checked Sep 5, 2026
17	AfricsearchPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	26
	“AfricSearch is a Human Resources consulting firm.” Source: company website · checked Sep 5, 2026
18	Z.A.Zen Consulting PTY LTDStrong evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	1-10	26
	“Since 2002, Z.A.ZEN Consulting (Pty) Ltd has been providing strategic solutions for government organizations, international organizations and corporations, and non-profits, among…” Source: company website · checked Sep 5, 2026
19	FOX Consulting LTDPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	20
	“Fox Consulting specialises in providing practical advice, constructing, and executing business growth strategies for our clients.” Source: company website · checked Sep 5, 2026
20	Vuuma CollaborationsPartial evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	20
	“At Vuuma Collaborations we are business performance experts with the goal to simplify the complexities of a business to unlock value and accelerate the development of skills and…” Source: company website · checked Sep 5, 2026
21	Drayton GlendowerIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	18
	“Drayton Glendower is a Leadership Advisory Firm with a Presence in Sub-Saharan Africa.” Source: company website · checked Sep 5, 2026
22	BlueprintsIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	18
	“BUSINESS INTELLIGENCE - CULTURE INFUSION - HIGH PERFORMANCE What we do We assist our clients to mathematically codify their future business philosophies, infuse fresh cultures…” Source: company website · checked Sep 5, 2026
23	Nkwali M ConsultingIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	15
	“Nkwali M Group established in 2004.” Source: company website · checked Sep 5, 2026
24	Nabantu PartnersIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	14
	“Nabantu, founded in 2003, are professionals in growing people in business.” Source: company website · checked Sep 5, 2026
25	Projectized Management PTY LTDIndirect evidence	Johannesburg, South AfricaHQ checked Sep 5, 2026	11-50	14
	“We believe in the power of possibility to change businesses and our world.” Source: company website · checked Sep 5, 2026

Showing 25 of 647 organizational development consulting firms based in Johannesburg, South Africa

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Organizational development consulting firms based in Johannesburg, South Africa at a glance

As of Sep 5, 2026

1-10Median size (employees)

JohannesburgLargest hub · 647 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

513

11-50

116

51-200

201-500

501-1,000

5,001-10,000

Email recency for this list is measured across the whole South Africa list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Johannesburg, over 647 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 organizational development 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 Johannesburg, South Africa whose own description of what they do matches “organizational development 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 organizational development consulting firms, and records with no verified work email. Companies headquartered outside Johannesburg 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, 983 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 5, 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.

Organizational development consulting firms by metro in South Africa

Organizational development consulting firms in Johannesburg647
Organizational development consulting firms in Cape Town393
Organizational development consulting firms in Pretoria173
Organizational development consulting firms in Sandton102
Organizational development consulting firms in Durban54
Organizational development consulting firms in Centurion50
Organizational development consulting firms in Randburg48
Organizational development consulting firms in Midrand40
Organizational development consulting firms in City Of Tshwane31
Organizational development consulting firms in Gauteng28
Organizational development consulting firms in Bryanston25

Frequently asked

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

RevenueBase identified 647 organizational development consulting firms headquartered in Johannesburg, 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?

South African National Blood Service, headquartered in Johannesburg, tops this list with the largest team on record.

Which city has the most organizational development consulting firms?

Johannesburg leads with 647 headquartered companies, followed by Cape Town (393) and Pretoria (173).

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 983 verified decision-maker contacts tracked across these 647 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 5, 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.