Company lists · Data refreshed November 2026

Top 25 Interview research services worldwide

RevenueBase identified 2,715 company matches for interview research services worldwide as of November 2026 and tracks 42,553 professional contacts across them, including 8,873 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for interview research services worldwide, 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 November 6, 2026. Country and city lists for interview research services follow the table.

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 Nov 6, 2026 How this list was built
2,715Companies
42,553Contacts tracked
8,873Verified emails
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The 25 largest interview research services worldwide

Ranked by team size
Top 25 of 2,715 company matches for interview research services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchOslo, NorwayHQ recorded Nov 6, 2026501-1,000837 contacts →

Exact match

“Norstat is one of the leading data collectors for market research and insight in Europe and the Americas.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchNew York, CT, United StatesHQ recorded Nov 6, 20265,001-10,000797 contacts →

Exact match

“In our world of rapid change, the need for reliable information to make confident decisions has never been greater.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchNew Delhi, IndiaHQ recorded Nov 6, 2026501-1,000709 contacts →

Exact match

“At Market Xcel, we're dedicated to delivering high-quality results for our clients.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchRotterdam, United KingdomHQ recorded Nov 6, 20261,001-5,000579 contacts →

Exact match

“MetrixLab is now Toluna, the global research and insights leader that enables businesses to make smarter, data-driven decisions faster.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPalo Alto, CA, United StatesHQ recorded Nov 6, 20261,001-5,000448 contacts →

Exact match

“Azure Knowledge Corporation, headquartered at Piscataway, NJ, is a globally trusted provider of market research and digital experience solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchRotterdam, NV, NetherlandsHQ recorded Nov 6, 2026201-500427 contacts →

Exact match

“GDCC is an independent data collection company providing international fieldwork services to leading market research- and consultancy agencies globally, both offline and online.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSeaford, AustraliaHQ recorded Nov 6, 2026201-500410 contacts →

Exact match

“TKW Research Group is Australia's most trusted research data collection and recruitment organisation.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchSan Marcos, TX, United StatesHQ recorded Nov 6, 20261,001-5,000394 contacts →

Exact match

“ReconMR is a multi-modal data collection company specializing in healthcare, transportation, energy, financial services, opinion polling, political polling, public policy survey…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchWashington, DC, United StatesHQ recorded Nov 6, 2026201-500385 contacts →

Exact match

“American Directions Research Group is one of the largest and most experienced market research survey providers in the United States.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200351 contacts →

Exact match

“RONIN International is an independent B2B market research company specialising in business, healthcare and tech studies.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchJohannesburg, South AfricaHQ recorded Nov 6, 20261,001-5,000337 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchFareham, United KingdomHQ recorded Nov 6, 2026201-500313 contacts →

Exact match

“Colvill Banks are experts in candidate research and identification.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchChicago, TX, United StatesHQ recorded Nov 6, 2026501-1,000302 contacts →

Exact match

“Fieldwork is a qualitative research partner.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSurry Hills, AustraliaHQ recorded Nov 6, 202651-200300 contacts →

Exact match

“Pureprofile’s vision is to deliver more value from the world’s information.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchToronto, QC, CanadaHQ recorded Nov 6, 2026201-500293 contacts →

Exact match

“The Logit Group is an innovative, technology-driven research execution company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchIselin, GA, United StatesHQ recorded Nov 6, 20261,001-5,000277 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBarcelona, SpainHQ recorded Nov 6, 2026201-500276 contacts →

Exact match

“Founded in Barcelona in 2001, Netquest is the data collection provider of choice for the Market Research Industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchBangalore, IndiaHQ recorded Nov 6, 2026501-1,000269 contacts →

Exact match

“Markelytics Solutions Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchAhmedabad, IndiaHQ recorded Nov 6, 202651-200257 contacts →

Exact match

“ActionEdge helps organizations turn questions into clarity through reliable market research and data collection.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchChicago, IL, United StatesHQ recorded Nov 6, 202651-200248 contacts →

Exact match

“Blackstone Group is a full-service custom marketing research and consulting firm providing clients with actionable insights for over 25 years.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchFort Smith, TX, United StatesHQ recorded Nov 6, 2026501-1,000243 contacts →

Exact match

“C&C Market Research is an industry leading market research field service firm based in Fort Smith, AR, which owns and operates over 36 research facilities in major markets all…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchCalabasas, CA, United StatesHQ recorded Nov 6, 202651-200242 contacts →

Exact match

“InnovateMR is a full-service sampling and ResTech company that delivers faster, quality insights from business and consumer audiences utilizing cutting-edge technologies to…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSan José, Costa RicaHQ recorded Nov 6, 2026201-500232 contacts →

Exact match

“CID Gallup, leader in market research, has all the tools to design the study that your company needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Nov 6, 2026n/a228 contacts →

Exact match

“Kudos Research is no longer trading.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchColorado Springs, CO, United StatesHQ recorded Nov 6, 2026201-500226 contacts →

Exact match

“Luce Research is located in beautiful Colorado Springs, Colorado.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 2,715 interview research services worldwide

See the full list, filter by size, metro and specialty, and access 8,873 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Interview research services worldwide at a glance

As of Nov 6, 2026
20.9%Verified-email coverage
15.7Average contacts per company
1-10Median size (employees)
4.3%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,374
11-50
938
51-200
266
201-500
81
501-1,000
17
1,001-5,000
12
5,001-10,000
3
10001+
6

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for interview research services are linked below.
What qualifies
Company records worldwide whose business descriptions match “interview research services” 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. 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 8,873 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 November 6, 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.

Interview research services by location

21 lists · largest first

Every Interview research services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “interview research services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many interview research services are there worldwide?

RevenueBase identified 2,715 company matches for interview research services worldwide as of November 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?

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

Which country has the most interview research services?

The United States leads with 687 companies, followed by India (319) and the United Kingdom (237). Every interview research services list by country and city is linked on this page.

Which city has the most interview research services?

London leads with 118 company records, followed by New Delhi (63) and New York (48).

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 8,873 professional contacts with verified work emails tracked across these 2,715 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 November 6, 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.