Company lists · Data refreshed November 2026
Top 25 In-depth interview services based in the United States
RevenueBase identified 959 company matches for in-depth interview services associated with the United States as of November 2026 and tracks 16,461 professional contacts across them, including 4,512 with verified work emails. New York is the largest hub.
This list covers company matches for in-depth interview services associated with the United States, 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.
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 25 largest in-depth interview services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 841 contacts → | ||||
Exact match “Today’s markets demand new research methods.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 571 contacts → | ||||
Exact match “Market Research Future (MRFR) is one of the most trusted firms for syndicated research services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 502 contacts → | ||||
Exact match “Driven by innovation and value addition approach, Allied Market Research is instrumental in market research and business consulting across various industry verticals since its…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 406 contacts → | ||||
Exact match “Hanover is a leading provider of research and analytics for thousands of organizations worldwide.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 385 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 | |||||
| 6 | 302 contacts → | ||||
Exact match “Fieldwork is a qualitative research partner.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 277 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 | |||||
| 8 | 248 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 | |||||
| 9 | 243 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 | |||||
| 10 | 220 contacts → | ||||
Exact match “At L&E we make connections to create conversations that help our clients make better decisions, allowing us to give back to our communities and grow our connections.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 206 contacts → | ||||
Exact match “For 40 years, MarketVision Research has provided its clients with innovative design, execution and interpretation of marketing research to deliver fresh consumer insights and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 189 contacts → | ||||
Exact match “Our passion is helping leading brands make critical decisions with confidence.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 156 contacts → | ||||
Exact match “IntelliSurvey provides software and services to help professional researchers make business decisions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 155 contacts → | ||||
Exact match “At C+R Research, a full-service marketing insights agency, we’ve been helping brands grow for over 65 years, delivering great research, deep perspective, and committed client…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 143 contacts → | ||||
Exact match “At The Link Group, we make complexity feel simple.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 134 contacts → | ||||
Exact match “iMAD Research was launched by a team of experienced and innovative market research professionals with a proven approach to managing successful research engagements.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 134 contacts → | ||||
Exact match “PRC Global Market Research, the Nation's Premiere Network of Market Research Recruitment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 125 contacts → | ||||
Exact match “Ironwood Insights is a team of expert-level insights consultants who solve critical marketing and business problems for forward-thinking companies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 123 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 122 contacts → | ||||
Exact match “Wynter is an on-demand market research platform for B2B.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 120 contacts → | ||||
Exact match “Starting from 1996 MARC helps Clients to solve different marketing tasks by selecting and implementing of optimum research methodology and effective use of results.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 118 contacts → | ||||
Exact match “Listen Labs is an autonomous market researcher that makes robust research simple and fast.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 116 contacts → | ||||
Exact match “From nationwide recruiting & online sample services to coding, transcription, client list management and incentive processing, our expert team is all in.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 115 contacts → | ||||
Exact match “Insights Opinion is a global research outsourcing firm (founded 2015) delivering expert B2B and healthcare data-collection across 100 countries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 114 contacts → | ||||
Exact match “Established in 2008, GLOBAL SURVEY is one of the leading and fastest growing Global Data Collection agencies in the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “in-depth interview services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 959 in-depth interview services based in the United States
See the full list, filter by size, metro and specialty, and access 4,512 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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In-depth interview services based in the United States at a glance
As of Nov 6, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 959 companies.
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.
- What qualifies
- Company records associated with the United States whose business descriptions match “in-depth interview 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 4,512 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.
In-depth interview services by metro
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 “in-depth interview services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many in-depth interview services are there based in the United States?
RevenueBase identified 959 company matches for in-depth interview services associated with the United States 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?
SAGO tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most in-depth interview services?
New York leads with 79 company records, followed by Chicago (40) and Los Angeles (34).
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 4,512 professional contacts with verified work emails tracked across these 959 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.
Ready to reach these companies? Verified emails and direct dials for all 959 in-depth interview services based in the United States. Start with a free account, no credit card.
Download this list →Related lists
In-depth interview services by geography
- In-depth interview services based in Sao Paulo, Brazil
- In-depth interview services based in Toronto, Canada
- In-depth interview services based in Paris, France
- In-depth interview services based in Bangalore, India
- In-depth interview services based in Gurgaon, India
- In-depth interview services based in Mumbai, India
- In-depth interview services based in New Delhi, India
- In-depth interview services based in Noida, India
- In-depth interview services based in Madrid, Spain
- In-depth interview services based in London, United Kingdom
- In-depth interview services based in Chicago, United States
- In-depth interview services based in Los Angeles, United States
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- In-depth interview services based in Sao Paulo, Brazil
- In-depth interview services based in Toronto, Canada
- In-depth interview services based in Paris, France
- In-depth interview services based in Bangalore, India
- In-depth interview services based in Gurgaon, India
- In-depth interview services based in Mumbai, India
Company intelligence · public preview
Top 25 in-depth interview services based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 959 matching company records for in-depth interview services based in the United States, with 16,461 tracked contacts and 4,512 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 in-depth interview services based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  SAGOsago.comHQ: Iselin, NJ, United StatesReported employees: 1,001-5,000 | Iselin, NJ, United States | 1,001-5,000 | Exact match | 841 contacts → |
“Today’s markets demand new research methods.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Market Research Future Mrfrmarketresearchfuture.comHQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 571 contacts → |
“Market Research Future (MRFR) is one of the most trusted firms for syndicated research services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Allied Market Researchalliedmarketresearch.comHQ: Wilmington, DE, United StatesReported employees: 501-1,000 | Wilmington, DE, United States | 501-1,000 | Exact match | 502 contacts → |
“Driven by innovation and value addition approach, Allied Market Research is instrumental in market research and business consulting across various industry verticals since its…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Hanover Researchhanoverresearch.comHQ: Arlington, NY, United StatesReported employees: 201-500 | Arlington, NY, United States | 201-500 | Exact match | 406 contacts → |
“Hanover is a leading provider of research and analytics for thousands of organizations worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  American Directions Research Groupamericandirections.comHQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 385 contacts → |
“American Directions Research Group is one of the largest and most experienced market research survey providers in the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Fieldworkfieldwork.comHQ: Chicago, TX, United StatesReported employees: 501-1,000 | Chicago, TX, United States | 501-1,000 | Exact match | 302 contacts → |
“Fieldwork is a qualitative research partner.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Schlesinger Groupschlesingergroup.comHQ: Iselin, GA, United StatesReported employees: 1,001-5,000 | Iselin, GA, United States | 1,001-5,000 | Exact match | 277 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Blackstone Groupbgglobal.comHQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 248 contacts → |
“Blackstone Group is a full-service custom marketing research and consulting firm providing clients with actionable insights for over 25 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  C&c Market Research, INCccmarketresearch.comHQ: Fort Smith, TX, United StatesReported employees: 501-1,000 | Fort Smith, TX, United States | 501-1,000 | Exact match | 243 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  L&e Researchleresearch.comHQ: Raleigh, CO, United StatesReported employees: 201-500 | Raleigh, CO, United States | 201-500 | Exact match | 220 contacts → |
“At L&E we make connections to create conversations that help our clients make better decisions, allowing us to give back to our communities and grow our connections.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Marketvision Researchmv-research.comHQ: Blue Ash, TX, United StatesReported employees: 51-200 | Blue Ash, TX, United States | 51-200 | Exact match | 206 contacts → |
“For 40 years, MarketVision Research has provided its clients with innovative design, execution and interpretation of marketing research to deliver fresh consumer insights and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  CMBcmbinfo.comHQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 189 contacts → |
“Our passion is helping leading brands make critical decisions with confidence.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Intellisurveyintellisurvey.comHQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 156 contacts → |
“IntelliSurvey provides software and services to help professional researchers make business decisions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  C R Researchcrresearch.comHQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 155 contacts → |
“At C+R Research, a full-service marketing insights agency, we’ve been helping brands grow for over 65 years, delivering great research, deep perspective, and committed client…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  The Link Grouptlg.comHQ: Durham, GA, United StatesReported employees: 51-200 | Durham, GA, United States | 51-200 | Exact match | 143 contacts → |
“At The Link Group, we make complexity feel simple.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Imad Researchimadresearch.comHQ: Wilmington, DE, United StatesReported employees: 51-200 | Wilmington, DE, United States | 51-200 | Exact match | 134 contacts → |
“iMAD Research was launched by a team of experienced and innovative market research professionals with a proven approach to managing successful research engagements.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  PRC Global Market Researchprcmarketresearch.comHQ: Tenafly, NJ, United StatesReported employees: 51-200 | Tenafly, NJ, United States | 51-200 | Exact match | 134 contacts → |
“PRC Global Market Research, the Nation's Premiere Network of Market Research Recruitment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Ironwood Insights Group, LLCironwoodinsights.comHQ: Chandler, AZ, United StatesReported employees: 51-200 | Chandler, AZ, United States | 51-200 | Exact match | 125 contacts → |
“Ironwood Insights is a team of expert-level insights consultants who solve critical marketing and business problems for forward-thinking companies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Lieberman, INCliebermanresearch.comHQ: Great Neck, NY, United StatesReported employees: 51-200 | Great Neck, NY, United States | 51-200 | Exact match | 123 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 |  Wynterwynter.comHQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 122 contacts → |
“Wynter is an on-demand market research platform for B2B.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  MARCmarc-analytics.comHQ: Boston, United StatesReported employees: 11-50 | Boston, United States | 11-50 | Exact match | 120 contacts → |
“Starting from 1996 MARC helps Clients to solve different marketing tasks by selecting and implementing of optimum research methodology and effective use of results.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Listen Labslistenlabs.comHQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 118 contacts → |
“Listen Labs is an autonomous market researcher that makes robust research simple and fast.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Focus Forwardfocusfwd.comHQ: Wayne, PA, United StatesReported employees: 11-50 | Wayne, PA, United States | 11-50 | Exact match | 116 contacts → |
“From nationwide recruiting & online sample services to coding, transcription, client list management and incentive processing, our expert team is all in.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Insights Opinioninsightsopinion.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 115 contacts → |
“Insights Opinion is a global research outsourcing firm (founded 2015) delivering expert B2B and healthcare data-collection across 100 countries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Global Surveyglobalsurvey.gsHQ: Orlando, FL, United StatesReported employees: 51-200 | Orlando, FL, United States | 51-200 | Exact match | 114 contacts → |
“Established in 2008, GLOBAL SURVEY is one of the leading and fastest growing Global Data Collection agencies in the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 959 company matches
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In-depth interview services: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
957 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 959 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
In-depth interview services by metro
Questions about this company list
What does Exact match mean for in-depth interview services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many in-depth interview services did RevenueBase find based in the United States?
The saved snapshot records 959 matching company records, 16,461 tracked contacts and 4,512 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
In-depth interview services by geography
- In-depth interview services based in Sao Paulo, Brazil
- In-depth interview services based in Toronto, Canada
- In-depth interview services based in Paris, France
- In-depth interview services based in Bangalore, India
- In-depth interview services based in Gurgaon, India
- In-depth interview services based in Mumbai, India
- In-depth interview services based in New Delhi, India
- In-depth interview services based in Noida, India
- In-depth interview services based in Madrid, Spain
- In-depth interview services based in London, United Kingdom
- In-depth interview services based in Chicago, United States
- In-depth interview services based in Los Angeles, United States
Cite this list
RevenueBase Data Team. Top 25 in-depth interview services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/in-depth-interview-services/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- In-depth interview services based in Sao Paulo, Brazil
- In-depth interview services based in Toronto, Canada
- In-depth interview services based in Paris, France
- In-depth interview services based in Bangalore, India
- In-depth interview services based in Gurgaon, India
- In-depth interview services based in Mumbai, India
Company intelligence · public preview
Top 25 in-depth interview services based in the United States
RevenueBase records 959 matching company records for in-depth interview services based in the United States, with 16,461 tracked contacts and 4,512 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 in-depth interview services based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | SAGOsago.com HQ: Iselin, NJ, United StatesReported employees: 1,001-5,000 | Iselin, NJ, United States | 1,001-5,000 | Exact match | 841 contacts → |
“Today’s markets demand new research methods.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Market Research Future Mrfrmarketresearchfuture.com HQ: New York, NY, United StatesReported employees: 201-500 | New York, NY, United States | 201-500 | Exact match | 571 contacts → |
“Market Research Future (MRFR) is one of the most trusted firms for syndicated research services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Allied Market Researchalliedmarketresearch.com HQ: Wilmington, DE, United StatesReported employees: 501-1,000 | Wilmington, DE, United States | 501-1,000 | Exact match | 502 contacts → |
“Driven by innovation and value addition approach, Allied Market Research is instrumental in market research and business consulting across various industry verticals since its…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Hanover Researchhanoverresearch.com HQ: Arlington, NY, United StatesReported employees: 201-500 | Arlington, NY, United States | 201-500 | Exact match | 406 contacts → |
“Hanover is a leading provider of research and analytics for thousands of organizations worldwide.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | American Directions Research Groupamericandirections.com HQ: Washington, DC, United StatesReported employees: 201-500 | Washington, DC, United States | 201-500 | Exact match | 385 contacts → |
“American Directions Research Group is one of the largest and most experienced market research survey providers in the United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Fieldworkfieldwork.com HQ: Chicago, TX, United StatesReported employees: 501-1,000 | Chicago, TX, United States | 501-1,000 | Exact match | 302 contacts → |
“Fieldwork is a qualitative research partner.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Schlesinger Groupschlesingergroup.com HQ: Iselin, GA, United StatesReported employees: 1,001-5,000 | Iselin, GA, United States | 1,001-5,000 | Exact match | 277 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Blackstone Groupbgglobal.com HQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 248 contacts → |
“Blackstone Group is a full-service custom marketing research and consulting firm providing clients with actionable insights for over 25 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | C&c Market Research, INCccmarketresearch.com HQ: Fort Smith, TX, United StatesReported employees: 501-1,000 | Fort Smith, TX, United States | 501-1,000 | Exact match | 243 contacts → |
“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 description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | L&e Researchleresearch.com HQ: Raleigh, CO, United StatesReported employees: 201-500 | Raleigh, CO, United States | 201-500 | Exact match | 220 contacts → |
“At L&E we make connections to create conversations that help our clients make better decisions, allowing us to give back to our communities and grow our connections.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Marketvision Researchmv-research.com HQ: Blue Ash, TX, United StatesReported employees: 51-200 | Blue Ash, TX, United States | 51-200 | Exact match | 206 contacts → |
“For 40 years, MarketVision Research has provided its clients with innovative design, execution and interpretation of marketing research to deliver fresh consumer insights and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | CMBcmbinfo.com HQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 189 contacts → |
“Our passion is helping leading brands make critical decisions with confidence.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Intellisurveyintellisurvey.com HQ: Irvine, CA, United StatesReported employees: 51-200 | Irvine, CA, United States | 51-200 | Exact match | 156 contacts → |
“IntelliSurvey provides software and services to help professional researchers make business decisions.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | C R Researchcrresearch.com HQ: Chicago, IL, United StatesReported employees: 51-200 | Chicago, IL, United States | 51-200 | Exact match | 155 contacts → |
“At C+R Research, a full-service marketing insights agency, we’ve been helping brands grow for over 65 years, delivering great research, deep perspective, and committed client…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | The Link Grouptlg.com HQ: Durham, GA, United StatesReported employees: 51-200 | Durham, GA, United States | 51-200 | Exact match | 143 contacts → |
“At The Link Group, we make complexity feel simple.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Imad Researchimadresearch.com HQ: Wilmington, DE, United StatesReported employees: 51-200 | Wilmington, DE, United States | 51-200 | Exact match | 134 contacts → |
“iMAD Research was launched by a team of experienced and innovative market research professionals with a proven approach to managing successful research engagements.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | PRC Global Market Researchprcmarketresearch.com HQ: Tenafly, NJ, United StatesReported employees: 51-200 | Tenafly, NJ, United States | 51-200 | Exact match | 134 contacts → |
“PRC Global Market Research, the Nation's Premiere Network of Market Research Recruitment.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Ironwood Insights Group, LLCironwoodinsights.com HQ: Chandler, AZ, United StatesReported employees: 51-200 | Chandler, AZ, United States | 51-200 | Exact match | 125 contacts → |
“Ironwood Insights is a team of expert-level insights consultants who solve critical marketing and business problems for forward-thinking companies.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Lieberman, INCliebermanresearch.com HQ: Great Neck, NY, United StatesReported employees: 51-200 | Great Neck, NY, United States | 51-200 | Exact match | 123 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 20 | Wynterwynter.com HQ: Austin, TX, United StatesReported employees: 11-50 | Austin, TX, United States | 11-50 | Exact match | 122 contacts → |
“Wynter is an on-demand market research platform for B2B.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | MARCmarc-analytics.com HQ: Boston, United StatesReported employees: 11-50 | Boston, United States | 11-50 | Exact match | 120 contacts → |
“Starting from 1996 MARC helps Clients to solve different marketing tasks by selecting and implementing of optimum research methodology and effective use of results.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Listen Labslistenlabs.com HQ: San Francisco, CA, United StatesReported employees: 51-200 | San Francisco, CA, United States | 51-200 | Exact match | 118 contacts → |
“Listen Labs is an autonomous market researcher that makes robust research simple and fast.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Focus Forwardfocusfwd.com HQ: Wayne, PA, United StatesReported employees: 11-50 | Wayne, PA, United States | 11-50 | Exact match | 116 contacts → |
“From nationwide recruiting & online sample services to coding, transcription, client list management and incentive processing, our expert team is all in.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Insights Opinioninsightsopinion.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 115 contacts → |
“Insights Opinion is a global research outsourcing firm (founded 2015) delivering expert B2B and healthcare data-collection across 100 countries.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Global Surveyglobalsurvey.gs HQ: Orlando, FL, United StatesReported employees: 51-200 | Orlando, FL, United States | 51-200 | Exact match | 114 contacts → |
“Established in 2008, GLOBAL SURVEY is one of the leading and fastest growing Global Data Collection agencies in the world.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 959 company matches
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In-depth interview services: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
957 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 959 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
In-depth interview services by metro
Questions about this company list
What does Exact match mean for in-depth interview services?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many in-depth interview services did RevenueBase find based in the United States?
The saved snapshot records 959 matching company records, 16,461 tracked contacts and 4,512 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
In-depth interview services by geography
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- In-depth interview services based in Toronto, Canada
- In-depth interview services based in Paris, France
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- In-depth interview services based in Gurgaon, India
- In-depth interview services based in Mumbai, India
- In-depth interview services based in New Delhi, India
- In-depth interview services based in Noida, India
- In-depth interview services based in Madrid, Spain
- In-depth interview services based in London, United Kingdom
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- In-depth interview services based in Los Angeles, United States
Cite this list
RevenueBase Data Team. Top 25 in-depth interview services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/in-depth-interview-services/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- In-depth interview services based in Sao Paulo, Brazil
- In-depth interview services based in Toronto, Canada
- In-depth interview services based in Paris, France
- In-depth interview services based in Bangalore, India
- In-depth interview services based in Gurgaon, India
- In-depth interview services based in Mumbai, India