Company lists · Data refreshed September 2026
Top 25 Media research firms worldwide
RevenueBase identified 1,345 media research firms worldwide as of September 2026 and tracks 55,229 professional contacts across them, including 11,458 with verified work emails. The United States is the largest market and New York the largest hub.
This list covers media research firms worldwide, 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 20, 2026. Country and city lists for media research firms follow the table.
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.
The 25 largest media research firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 23,892 contacts → | ||||
Partial evidence “Nielsen shapes the world’s media and content as a global leader in audience insights, data and analytics.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 2,973 contacts → | ||||
Indirect evidence “O Ibope – marca latino-americana da Fifty5Blue – entrega clareza para marcas, agências e veículos sobre como as pessoas consomem mídia.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,306 contacts → | ||||
Partial evidence “Kantar Media is now Fifty5Blue.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 1,269 contacts → | ||||
Partial evidence “Comscore (NASDAQ: SCOR) is a global, trusted partner for planning, transacting and evaluating media across platforms.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 999 contacts → | ||||
Indirect evidence “Ipsos MMA is committed to enabling our clients to achieve significant brand and marketplace advantages by synergistically leveraging unified marketing & commercial measurement and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 694 contacts → | ||||
Indirect evidence “In our world of rapid change, the need for reliable information to make confident decisions has never been greater.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 669 contacts → | ||||
Strong evidence “TAM Media Research, is a 50:50 joint venture between two global media research organizations, Nielsen & Kantar Media Research.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 664 contacts → | ||||
Indirect evidence “At Market Xcel, we're dedicated to delivering high-quality results for our clients.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 628 contacts → | ||||
Indirect evidence “Leader des études Médias, Médiamétrie observe, mesure et analyse les comportements du public et les tendances du marché.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 551 contacts → | ||||
Indirect evidence “Nielsen is a global performance management company that provides a comprehensive understanding of what consumers Watch and Buy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 412 contacts → | ||||
Partial evidence “Numeris is a leading audience data company curating data and insights that makes sense of media behaviours in a cross-platform, cross-media world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 391 contacts → | ||||
Partial evidence “Stop and Shop is a market research company based out of Osceola Ossipee Rd, Browns Summit, North Carolina, United States.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 350 contacts → | ||||
Indirect evidence “A division of Kantar, Kantar Profiles is a market-leading data company and home to the world’s largest audience network.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 253 contacts → | ||||
Partial evidence “Excelsior Research is a full service market research agency offering a wide range of Research Solutions and Services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 218 contacts → | ||||
Partial evidence “MAGNA is the media intelligence unit within IPG Mediabrands and the driving force behind advertising forecasts, understanding consumer behavior, marketplace insights, and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 202 contacts → | ||||
Partial evidence “Aeon Market Research Pvt.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 192 contacts → | ||||
Strong evidence “We are an international research and technology company providing digital and cross-media audience measurement and advanced marketing solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 187 contacts → | ||||
Partial evidence “For over 25 years, Rakuten Insight has been at the forefront of consumer market research data collection.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 179 contacts → | ||||
Indirect evidence “Quadrant Strategies helps the world’s most prominent companies navigate their most important brand, reputation, and product challenges.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 175 contacts → | ||||
Strong evidence “Vmak Research & Services, LLC is a full service Market Research agency specializing in Technology spaces, Telecom, Consumer Products, Media and Healthcare.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 171 contacts → | ||||
Partial evidence “De la Riva Group is one of the most trusted market research companies serving Fortune 500, private and government clients in North and South America.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 170 contacts → | ||||
Partial evidence “Screen Engine/ASI is a global market research and analytics firm passionate about what we do and hyper-focused on the success of our clients.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 156 contacts → | ||||
Partial evidence “Interpret is a global consumer insights firm operating at the intersection of media, entertainment and technology.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 152 contacts → | ||||
Partial evidence “Global Media & Entertainment Data Science Company, for over 37 years.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 152 contacts → | ||||
Partial evidence “Promark Research Corporation is headquartered in Spring, Texas, a few miles North of Houston.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
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: media research 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 media research firms.
- Partial evidence
- Its own public description names part of media research firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name media research 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 25 of 1,345 media research firms worldwide
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Media research firms worldwide at a glance
As of Sep 20, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 media research 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.
- Coverage
- Every country. Country and city lists for media research firms are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “media research 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 media research 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 media research firms, and records with no verified work email.
- 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, 11,458 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 20, 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.
Media research firms by location
8 lists · largest firstEvery Media research firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Media research firms based in the United States283
- Media research firms based in India117
- Media research firms based in the United Kingdom65
- Media research firms based in Germany63
- Media research firms based in Brazil57
- Media research firms based in France40
- Media research firms based in Italy29
- Media research firms based in Canada25
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 media research 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 media research firms are there worldwide?
RevenueBase identified 1,345 media research firms worldwide 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?
Nielsen, headquartered in Istanbul, tops this list with the largest team on record.
Which country has the most media research firms?
The United States leads with 283 companies, followed by India (117) and the United Kingdom (65). Every media research firms list by country and city is linked on this page.
Which city has the most media research firms?
New York leads with 38 headquartered companies, followed by London (33) and Sao Paulo (23).
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 11,458 verified decision-maker contacts tracked across these 1,345 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 20, 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.