Company lists · Data refreshed September 2026

Top 25 Fieldwork research companies based in the United States

Name: Fieldwork research companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 1,110 companies tracked

RevenueBase identified 1,110 fieldwork research companies headquartered in the United States as of September 2026 and tracks 17,415 professional contacts across them, including 5,722 with verified work emails. New York is the largest hub.

This list covers fieldwork research companies headquartered in the United States, 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.

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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 21, 2026 86% judged on-target in blind review

1,110Companies

17,415Contacts tracked

5,722Verified emails

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The 25 largest fieldwork research companies based in the United States

Ranked by team size

Top 25 of 1,110 fieldwork research companies based in the United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to fieldwork research companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Ipsos In US	Indirect evidence	New York, NY, United StatesHQ checked Sep 21, 2026	5,001-10,000	821 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, 2026
2	SAGO	Partial evidence	Iselin, NJ, United StatesHQ checked Sep 21, 2026	1,001-5,000	795 contacts →
	Partial evidence “Today’s markets demand new research methods.” Source: RevenueBase Database · checked Sep 21, 2026
3	Azure Knowledge Corporation	Partial evidence	Palo Alto, CA, United StatesHQ checked Sep 21, 2026	1,001-5,000	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, 2026
4	Unimrkt Research	Partial evidence	Great Neck, NY, United StatesHQ checked Sep 21, 2026	501-1,000	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, 2026
5	Hanover Research	Partial evidence	Arlington, VA, United StatesHQ checked Sep 21, 2026	201-500	405 contacts →
	Partial evidence “Hanover is a leading provider of research and analytics for thousands of organizations worldwide.” Source: RevenueBase Database · checked Sep 21, 2026
6	American Directions Research Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	201-500	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, 2026
7	Fieldwork	Strong evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	501-1,000	285 contacts →
	Strong evidence “Fieldwork is a qualitative research partner.” Source: RevenueBase Database · checked Sep 21, 2026
8	Schlesinger Group	Partial evidence	Iselin, NJ, United StatesHQ checked Sep 21, 2026	1,001-5,000	284 contacts →
	Partial 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, 2026
9	Blackstone Group	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	51-200	229 contacts →
	Partial evidence “Blackstone Group is a full-service custom marketing research and consulting firm providing clients with actionable insights for over 25 years.” Source: RevenueBase Database · checked Sep 21, 2026
10	L&e Research	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 21, 2026	201-500	218 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 21, 2026
11	C&c Market Research, INC	Partial evidence	Fort Smith, AR, United StatesHQ checked Sep 21, 2026	501-1,000	217 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
12	PSB Insights	Partial evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	51-200	208 contacts →
	Partial evidence “PSB Insights is a global research consultancy.” Source: RevenueBase Database · checked Sep 21, 2026
13	Luth Research	Partial evidence	San Diego, CA, United StatesHQ checked Sep 21, 2026	201-500	202 contacts →
	Partial evidence “Luth Research is the industry-leading path-to-purchase market research firm powered by a revolutionary behavioral data collection technology.” Source: RevenueBase Database · checked Sep 21, 2026
14	Marketvision Research	Partial evidence	Blue Ash, United StatesHQ checked Sep 21, 2026	51-200	195 contacts →
	Partial evidence “For 40 years, MarketVision Research has provided its clients with innovative design, execution and interpretation of marketing research to deliver fresh consumer insights and…” Source: RevenueBase Database · checked Sep 21, 2026
15	Quadrant Strategies	Indirect evidence	Washington, DC, United StatesHQ checked Sep 21, 2026	51-200	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 21, 2026
16	CMB	Indirect evidence	Boston, MA, United StatesHQ checked Sep 21, 2026	51-200	177 contacts →
	Indirect evidence “Our passion is helping leading brands make critical decisions with confidence.” Source: RevenueBase Database · checked Sep 21, 2026
17	Retail Assistance Corporation	Partial evidence	Scottsdale, AZ, United StatesHQ checked Sep 21, 2026	1,001-5,000	175 contacts →
	Partial evidence “Retail Assistance Corporation,(RAC), has been providing daily market research and in-store merchandising to our clients since 1990.” Source: RevenueBase Database · checked Sep 21, 2026
18	E2e Research	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	201-500	159 contacts →
	Partial evidence “For more than ten years, E2E Research has specialized in converting enigmas into enlightenment for researchers and business leaders around the world.” Source: RevenueBase Database · checked Sep 21, 2026
19	C R Research	Partial evidence	Chicago, IL, United StatesHQ checked Sep 21, 2026	51-200	154 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
20	Intellisurvey	Partial evidence	Irvine, CA, United StatesHQ checked Sep 21, 2026	51-200	142 contacts →
	Partial evidence “IntelliSurvey provides software and services to help professional researchers make business decisions.” Source: RevenueBase Database · checked Sep 21, 2026
21	The Link Group	Indirect evidence	Durham, NC, United StatesHQ checked Sep 21, 2026	51-200	127 contacts →
	Indirect evidence “At The Link Group, we make complexity feel simple.” Source: RevenueBase Database · checked Sep 21, 2026
22	PRC Global Market Research	Partial evidence	Tenafly, NJ, United StatesHQ checked Sep 21, 2026	51-200	127 contacts →
	Partial evidence “PRC Global Market Research, the Nation's Premiere Network of Market Research Recruitment.” Source: RevenueBase Database · checked Sep 21, 2026
23	Insights Opinion	Partial evidence	New York, NY, United StatesHQ checked Sep 21, 2026	51-200	125 contacts →
	Partial evidence “Insights Opinion is an emerging global leader in research outsourcing, offering expert data collection services to large research and consulting firms.” Source: RevenueBase Database · checked Sep 21, 2026
24	Ironwood Insights Group, LLC	Indirect evidence	Chandler, AZ, United StatesHQ checked Sep 21, 2026	51-200	111 contacts →
	Indirect evidence “Ironwood Insights is a team of expert-level insights consultants who solve critical marketing and business problems for forward-thinking companies.” Source: RevenueBase Database · checked Sep 21, 2026
25	Focus Forward	Indirect evidence	Wayne, PA, United StatesHQ checked Sep 21, 2026	11-50	111 contacts →
	Indirect evidence “From nationwide recruiting & online sample services to coding, transcription, client list management and incentive processing, our expert team is all in.” Source: RevenueBase Database · checked Sep 21, 2026

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: fieldwork research companies. 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 fieldwork research companies.
Partial evidence: Its own public description names part of fieldwork research companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name fieldwork research companies. 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 1,110 fieldwork research companies based in the United States

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Fieldwork research companies based in the United States at a glance

As of Sep 21, 2026

32.9%Verified-email coverage

15.7Average contacts per company

1-10Median size (employees)

7.0%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

607

11-50

343

51-200

111

201-500

501-1,000

1,001-5,000

5,001-10,000

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 1,110 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among fieldwork research companies, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “fieldwork research companies”. 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 fieldwork research companies), 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 fieldwork research companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and 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, 5,722 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.

Fieldwork research companies by metro

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 fieldwork research companies, 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 fieldwork research companies are there based in the United States?

RevenueBase identified 1,110 fieldwork research companies headquartered in the United States 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 In US, headquartered in New York, tops this list with the largest team on record.

Which city has the most fieldwork research companies?

New York leads with 78 headquartered companies, followed by Chicago (42) and Los Angeles (40).

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 5,722 verified decision-maker contacts tracked across these 1,110 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.