Company lists · Data refreshed September 2026
Top 25 Data collection research services worldwide
RevenueBase identified 4,602 data collection research services worldwide as of September 2026 and tracks 79,408 professional contacts across them, including 15,654 with verified work emails. The United States is the largest market and New Delhi the largest hub.
This list covers data collection research services 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 21, 2026. Country and city lists for data collection research services 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 data collection research services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 16,377 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 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,248 contacts → | ||||
Indirect evidence “Westat offers innovative professional services to help clients improve outcomes in health, education, and social policy.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 999 contacts → | ||||
Strong evidence “For life sciences research, our in-home biospecimen collection, medical records and data abstraction services have supported more than 200 studies and phase II-IV trials.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 778 contacts → | ||||
Strong evidence “Research Now SSI is the global leader in digital research data for better insights and business decisions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 764 contacts → | ||||
Strong evidence “Norstat is one of the leading data collectors for market research and insight in Europe and the Americas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 741 contacts → | ||||
Partial evidence “Hansa Research is a full-service global market research agency conducting research in over 100 countries.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 664 contacts → | ||||
Indirect evidence “At Market Xcel, we're dedicated to delivering high-quality results for our clients.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 600 contacts → | ||||
Partial evidence “Azure Knowledge Corporation, headquartered at Piscataway, NJ, is a globally trusted provider of market research and digital experience solutions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 581 contacts → | ||||
Partial evidence “Unimrkt Research is a Market Research Outsourcing firm that helps global Market Research organizations with their primary and secondary research and support needs.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 530 contacts → | ||||
Indirect evidence “GMI is now Lightspeed.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 514 contacts → | ||||
Strong evidence “Research Now SSI is the global leader in digital research data for better insights and business decisions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 464 contacts → | ||||
Strong evidence “Savanta is a fast-growing data, market research and advisory company.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 414 contacts → | ||||
Strong evidence “Precision Opinion specializes in CATI and SMS / MMS (text-to-web) data collection services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 405 contacts → | ||||
Partial evidence “Hanover is a leading provider of research and analytics for thousands of organizations worldwide.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 393 contacts → | ||||
Strong evidence “TKW Research Group is Australia's most trusted research data collection and recruitment organisation.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 392 contacts → | ||||
Indirect evidence “NSMX (NS Matrix Services Pvt.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 374 contacts → | ||||
Strong evidence “ReconMR is a multi-modal data collection company specializing in healthcare, transportation, energy, financial services, opinion polling, political polling, public policy survey…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 344 contacts → | ||||
Partial evidence “American Directions Research Group is one of the largest and most experienced market research survey providers in the United States.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 341 contacts → | ||||
Indirect evidence “Fondé en 1938 par le sociologue Jean Stoetzel, l’Ifop est le pionnier de la méthode des sondages et le premier à déployer en France des enquêtes d’opinion publique.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 335 contacts → | ||||
Partial evidence “Jump: Your Data-Driven Partner for Innovation Jump is a company specialized in technology services and data analysis, composed by a highly qualified team in several areas.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 319 contacts → | ||||
Partial evidence “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: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 312 contacts → | ||||
Partial evidence “RONIN International is an independent B2B market research company specialising in business, healthcare and tech studies.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 284 contacts → | ||||
Strong evidence “Schlesinger Group is a technology-led data company that delivers a broad range of qualitative and quantitative research solutions to connect human answers to business questions as…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 265 contacts → | ||||
Strong evidence “Founded in Barcelona in 2001, Netquest is the data collection provider of choice for the Market Research Industry.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 247 contacts → | ||||
Indirect evidence “Markelytics Solutions Ltd.” Source: RevenueBase Database · checked Sep 21, 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: data collection research services. 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 data collection research services.
- Partial evidence
- Its own public description names part of data collection research services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name data collection research services. 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 4,602 data collection research services worldwide
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Data collection research services worldwide at a glance
As of Sep 21, 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 data collection research services, 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 data collection research services are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “data collection research services”. 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 data collection research services), 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 data collection research services, 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, 15,654 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 21, 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.
Data collection research services by location
22 lists · largest firstEvery Data collection research services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Data collection research services based in the United States936
- Data collection research services based in India572
- Data collection research services based in the United Kingdom282
- Data collection research services based in Brazil148
- Data collection research services based in Canada138
- Data collection research services based in France106
- Data collection research services based in Germany103
- Data collection research services based in Australia85
- Data collection research services based in Spain76
- Data collection research services based in Kenya65
- Data collection research services based in Türkiye62
- Data collection research services based in the Netherlands61
- Data collection research services based in South Africa59
- Data collection research services based in Italy52
- Data collection research services based in Mexico50
- Data collection research services based in Poland37
- Data collection research services based in the United Arab Emirates37
- Data collection research services based in Romania25
Cities
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 data collection research services, 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 data collection research services are there worldwide?
RevenueBase identified 4,602 data collection research services 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?
IPSOS, headquartered in Paris, tops this list with the largest team on record.
Which country has the most data collection research services?
The United States leads with 936 companies, followed by India (572) and the United Kingdom (282). Every data collection research services list by country and city is linked on this page.
Which city has the most data collection research services?
New Delhi leads with 118 headquartered companies, followed by London (111) and Mumbai (65).
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 15,654 verified decision-maker contacts tracked across these 4,602 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 21, 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.