Company lists · Data refreshed September 2026
Top 13 Research consulting firms based in Johannesburg, South Africa
RevenueBase identified 56 research consulting firms headquartered in Johannesburg, South Africa as of September 2026 and tracks 517 professional contacts across them, including 76 with verified work emails. Johannesburg is the largest hub.
This list covers research 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.
The 13 largest research consulting firms based in Johannesburg, South Africa
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 319 | ||||
“Plus 94 Research is a market research company that is so unique in its thinking and vision it is set to significantly enhance the service experience of clients.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 21 | ||||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 13 | ||||
“Osmoz Consulting is a global provider of academic research assistance and training, founded in 2012.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 8 | ||||
“Established in 1994, REACT Insights has been providing cost effective and strategic Customer Experience Research for top performing brands.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | W5 PartnersIndirect evidence | 7 | |||
“W5 Partners is a marketing consultancy practice dedicated to moving business and brands forward.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 5 | ||||
“We believe in the transformative power of trust and commitment in business relationships.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 5 | ||||
“Brane Afrika is a young, agile and dynamic advisory firm driven by the belief sustainability is not just an altruistic objective but a commercial priority.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | Mariana Carroll ConsultingPartial evidence | 3 | |||
“Mariana Carroll Consulting is a value-adding partner that brings together insights, tools and support services.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | Research Observatory InternationalPartial evidence | 2 | |||
“Research Observatory International (ROI) is a full-service international company specialising in multidisciplinary research, training and statistical consultancy.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 2 | ||||
“Collecting data is one thing, a thing we are very good at, but even great data is useless if it can't be turned into actionable, realistic and relevant insights.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1 | ||||
“We are a niched research and strategy firm with over ten years solid track record of on-time, on-budget project delivery.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 1 | ||||
“Leading Edge Research is a South African market research consultancy that provides quantitative research solutions throughout Africa.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 13 of 56 research consulting firms based in Johannesburg, South Africa
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Research consulting firms based in Johannesburg, South Africa at a glance
As of Sep 5, 2026Companies by employee count
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 56 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 research 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 “research 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 research 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, 76 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.
Research consulting firms by metro in South Africa
- Research consulting firms in Johannesburg56
- Research consulting firms in Pretoria34
- Research consulting firms in Cape Town33
Frequently asked
How many research consulting firms are there based in Johannesburg, South Africa?
RevenueBase identified 56 research 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?
Plus 94 Research, headquartered in Johannesburg, tops this list with the largest team on record.
Which city has the most research consulting firms?
Johannesburg leads with 56 headquartered companies, followed by Pretoria (34) and Cape Town (33).
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 76 verified decision-maker contacts tracked across these 56 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.
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